What to do if there is a house, but the gas main is not connected to it? The answer is simple - we need autonomous gasification of a private house, ensuring the supply of blue fuel to the gas stove and heating boilers. This is not an easy task; it requires careful design, strict adherence to building codes and special knowledge.

But it is still worth considering this gasification option in more detail, since it has many advantages. We will tell you how the system works, which working units are included in the autonomous complex.

We will describe the specifics of operating a gas tank and bottled gas supply, and also outline the rules for the design, design and installation of a local gas pipeline.

Gas stove connected to a cylinder liquefied gas- a common occurrence. Using the same principle, you can supply blue fuel to a gas boiler to provide heating and hot water supply to the entire house. You just need a larger container or even several tanks of liquefied gas.

The fuel used in such systems is an analogue of natural gas, which consists of a mixture of butane and propane. This mixture is called LPG - liquefied hydrocarbon gas.

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But if people live in a house or cottage all year round, you should definitely install an underground tank.

Gas tanks designed for installation underground are more in demand than above-ground models, since they provide a stable temperature for storing liquefied gas

Although it is easier to install an above-ground gas tank, there are more problems with its operation. Due to the influence of high and unstable temperatures, such devices are subject to more stringent safety requirements. The cost of above-ground installations is also usually higher than for underground counterparts.

As a rule, land-based models are installed where large gas consumption is not planned. The container will be emptied periodically, so you need to immediately think about whether to prefer a stationary or mobile option. Refueling of mobile models equipped with wheels for towing is carried out as follows:

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Before you carry out autonomous gasification of your home or other facility, you should carefully study all the advantages and disadvantages of such heating.

The disadvantages of autonomous gas supply include the following:

• the need to constantly monitor the condition of the gas tank for possible gas leaks, as well as the obligation to monitor the remaining gas in order to avoid negative consequences;
• the likelihood of a malfunction of the gearbox, into which water can get in, which will disable the entire autonomous heating system. However, such problems can be prevented by choosing a gas tank more carefully. Modern choice Such technology requires a thorough study of all the characteristics of the proposed products and correlating them with the expected operating conditions, from the type of soil to the features of the gas-consuming installation;
• a narrow circle of gas suppliers, which puts those who want to have autonomous gas heating in a dependent position;
• the high cost of autonomous gasification measures, which involve the purchase of expensive equipment and payment for equally costly work and services. Therefore, initially you should think through everything carefully and evaluate the cost of installing an autonomous heating system. In this case, all work on the assembly and adjustment of the system must be carried out by appropriate specialists. About how to independently establish gas supply in your home, and there can be no question! Think about safety!

The advantages of autonomous gas heating are:

• saving. Heat energy obtained from autonomous gas supply is cheaper than electrical energy, as well as energy generated by burning diesel fuel. Thus, the cost of autonomous gasification is gradually paid off by reducing heating costs;
• freedom from main supply systems. There are no gas pressure drops in the system, and cases of unexpected shutdown;
• Efficiency of design work and installation of a gas tank in relation to the time of connection to the main gas supply network. If desired, the tank can be installed in one day, and the whole process takes 3-4 days;
• independence of the possibility of installing a gas tank from the location of the gasified facility;
• environmental friendliness. The burned gas contains almost no hazardous substances, and the tank with it is installed at a reliable distance from the object;
• a wide range of applications of liquefied gas, with which you can not only heat a house, but also supply it with electricity (naturally, by installing additional equipment), as well as cook food;
• individual project depending on your wishes;
• cost-effectiveness of servicing an autonomous gas heating system, the use of which for a long time does not require the additional involvement of specialists. A system installed by professionals and assembled from high-quality high-tech equipment can operate for more than two decades;
• increased service life of associated equipment involved in the operation of the autonomous gas supply system;
• system flexibility. There is no need to coordinate the installation of additional equipment;
• increased environmental friendliness. LPG completely evaporates during combustion and does not emit harmful substances.

propan24.ru

Autonomous gasification of a dacha - possible problems and their solutions

The happy owners of country cottages and dachas can tell you about the advisability of installing a gas supply system like no one else: the benefits of civilization are especially valuable when they are not available. You can heat with wood or try to warm up the house with electricity. Both are very expensive, the first is also labor-intensive. Most economical option energy supply was and is gasification. Unfortunately, connecting to the main gas supply is not always possible. The subject of close consideration today will be the autonomous gasification of a dacha with liquefied gas. Let's consider the disadvantages and advantages of the arrangement, as well as possible difficulties during installation and operation.

To operate a gas stove alone, it is not necessary to equip a gas supply system, as you understand; connecting a cylinder with liquefied gas is enough. Autonomous gasification is necessary for comprehensive solution problems of home heating in winter and hot water supply all year round.

The general scheme of the device for an autonomous gasification system for a summer residence clearly shows the possibility of providing a completely non-volatile system

Liquefied gas can power an electric generator, but creating a backup source of energy supply, and even in conditions of frequent power fluctuations, will be far from unnecessary! Thus, gasification of a dacha, in addition to the obvious advantages, is valuable in that it will help make the house completely energy independent. Among the advantages of an autonomous gas supply to a dacha are the possibility of uninterrupted supply of fuel to the consumer, ease of operation, environmental friendliness, and, importantly, efficiency.

The gas supply system consists of a reservoir (gas holder) filled with a propane-butane mixture, shut-off valves, devices for automatically adjusting the pressure of the gaseous phase of the fuel, as well as a gas pipeline connecting the reservoir with gas consumers.

Gas tanks come in various sizes and allow you to maintain reserves of reduced gas sufficient for the operation of the autonomous system of the house throughout the entire heating period. The gas holder can be installed on the surface of the earth or buried in the ground.

Aboveground placement of a gas tank is used in warm climate zones. The container is painted White color to reduce heat in the sun

When choosing an installation method, it is important to take into account the climate. Low temperatures in winter prevent the transition of gas from a liquid fraction to a gaseous one, which can cause its deficiency for the work of consumers. Therefore, an above-ground installation is more often used in areas with a warm climate, and in areas with severe winters, underground placement of a gas tank is more expedient, the soil provides the required temperature level. When placing a gas tank underground or above ground, it is important to consider the need for corrosion protection. The tank standing on the surface is painted, and those intended for underground installation are coated with special resins and anti-corrosion polymer compounds.

The underground installation method is safer; during installation it will be busy small area personal plot

Liquefied gas is essentially an explosive substance; when the temperature rises (for example, in summer), it expands significantly, the volume of liquid increases, which leads to a general increase in pressure in the tank. The container can depressurize, simply put, burst from internal pressure. To avoid this scenario, filling the gas tank with liquefied gas to more than 85% of its volume is strictly prohibited.

Another likely difficulty in operating autonomous gas supply systems is ensuring the safe operation of the gas pipeline and all systems. Even a minor gas pipeline leak can be extremely dangerous. The gas is approximately twice as heavy as air, so it “flows” to the lowest areas, accumulating in basements and basements, then, mixing with air, it forms an explosive explosive mixture. Therefore, proper arrangement of the boiler room is extremely important. All heating devices must be located above ground level. Good ventilation(natural) is another necessary condition. Be sure to regularly check joints for leaks. The room where gas consuming devices are located must be equipped with gas detectors.

Reservoir neck, used for refilling and access to pressure control devices

Among the main advantages of installing an autonomous gasification system, we should note the possibility of power supply in automatic mode, a minimum of user control, economic feasibility and high productivity. The main condition efficient work is a responsible attitude towards arrangement issues, because gas is explosive, negligence at any stage of installation and operation of the system is unacceptable. Each installation using liquefied gas must undergo mandatory registration with the Rostekhnadzor authorities, all activities for installation, installation, refueling must be carried out only by qualified specialists (with the appropriate license).

strmnt.com

EQUIPMENT FOR CNG. CNG filling station. PAGZ.

Autonomous gas supply using compressed natural gas CNG

Our country has the largest proven gas reserves in the world. But, unfortunately, this still does not make it available to the majority of Russian consumers. Both individuals and legal entities.

This is mainly due to the fact that the local gas infrastructure does not meet the current needs of the economy, as it was created back in Soviet times. Laying new lines is very expensive and “opaque”. Moreover, there is not always any interest of the executive bodies of the gas supply organization in refusing to gasify your facility. The reason may be simple - the gas limit in the gas pipeline nearest to you has been exhausted by other consumers. What should you do if your enterprise needs to expand gas capacity in this particular place, where you already have everything you need: land, supplies, production? Move the enterprise to another location where there is the necessary infrastructure or build a branch on the other side of the city? No, you don’t need to do any of this, now there is an autonomous CNG gas supply (AG CNG) for this. Autonomous CNG gas supply is also suitable for backup gas supply in case of failure of the main gas supply due to an accident.

Recently, cottage communities have been built like mushrooms around large and other cities. Many citizens strive to leave the stuffy and polluted city and settle away from the noise and bustle. If there is land, then building a house(s) is not a particular problem. There are house building technologies to suit every taste and budget. The main problem is communications. Where can I get gas, electricity, heat, water? There are no special problems with water; it is everywhere, except that it lies at different depths. We drilled a well and the problem is solved! Where can I get gas? The problem is similar to that described above, only in cities the gas infrastructure is more or less developed due to the larger number of consumers, but with the suburbs it is more complicated. The solution to the problem is similar - autonomous gas supply of CNG!

But that's not so bad, what about electricity? Now this is also not a problem. The solution is to use a cogeneration gas turbine (or gas piston, depending on the needs) power plant and an autonomous CNG gas supply system for electrification of the facility. Electricity is generated from gas at a cost that is sometimes much lower than the local power company's rate!

How will you heat your home(s) and how much will it cost? Diesel fuel? Expensive! Electricity? Even more expensive! Propane-butane is no less than 3 times more expensive than CNG. It is estimated that only firewood is similar in cost to methane. But of course you can imagine a city dweller waving an ax, but how long will you last? Now the good news is that you get heat for free*! Due to the utilization of heat from the compressor unit, which is part of the CNG autonomous gas supply equipment. Plus, as a bonus, when installing additional ABHM equipment, the same heat turns into cold. You don't need air conditioning!

What to do if you like all of the above, but you are not the developer of an elite village, but the owner garden plot in SNT or a house in the village, but do you want to live there not only in the summer, but all year round? In this case, you need to unite with your neighbors. Then it will be possible to lease this equipment at a low interest rate.

Our company is ready to offer you initial stage provide free consulting assistance in preparing the necessary package of documents for travel to a meeting (meeting) of members of the board, residents. Our interest in cooperation with you is directed to the further development of the gardening gasification project, the construction of a gas distribution pipeline, engineering work on the internal gas supply of the house, connecting the boiler and boiler equipment. It is always worth remembering that by entrusting the work to specialists, you will quickly, and often cheaper, come to the final result (connecting a private house to a gas pipeline).

Already at the first stage, we will orient you about the upcoming financial and time costs. The main problem that all partnerships face when gasifying gardening is that some of the residents do not have a quick opportunity to invest cash to gasify your home. In this case, we offer you a flexible system of leasing payment for our services. And this ends up being cheaper than a classic pipe connection. What you do is make a small down payment and pay the remaining payments over three years.

In general, our advantages are that we are ready to:

We will be glad if you send us a questionnaire with a brief description of your village and plans for gasification of gardening, indicating contact details, and we will contact you shortly. Or just call. If a sufficient number of participants are not recruited for the gasification of your facility, then do not be discouraged. We will collect information on your property and inform you about new applicants. As soon as it gets enough required amount participants, we will be able to begin work immediately. Practice shows that the active participation of the residents themselves greatly speeds up the process, so if you yourself take part in the agitation of your neighbors it will be much better. The greater the number of participants, the cheaper gasification costs for each home! Neighboring gardening/SNT/DNP can also take part in the gasification process, if there is a technical possibility for this, the equipment will be the same for everyone.

Short description services:

At the prepared site of the gasified facility, AG CNG equipment is installed, which includes:

• Container-cassette gas storages
• Booster compressor
• Internal gas pipeline system
• Gas piston cogeneration container power plant (optional) - in case you need electricity in addition to gas. At the same time, you receive free heat by recycling the heat of the compressor.

Gas from the local gas pipeline is discharged to the facility’s stationary gas pipeline; if you don't have one, we can install it.

AG CNG is supplied with gas using a mobile gas tanker PAGZ, which receives gas at the mother CNG filling station. The system is fully automated: when the gas supply reaches a pre-calculated threshold, a signal is sent to the system, and the gas supply company sends you a new gas reserve. Therefore, there cannot be any delays in gas supplies.

Advantages of using CNG compared to other types of fuel:

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Autonomous gasification of a private house, country cottage

Noisy and dusty city streets, gas pollution, poor water quality - all these aspects create a great desire to leave the city and be alone with nature. And so, in your mind, the thought of building or purchasing a summer house, or even building a cottage, for permanent residence takes root.

Then it’s worth thinking about how you will heat your home with the onset of autumn cold weather. And what to do if there is no main gas pipeline in the locality where you purchased a house? You have only one way out, the surest and most correct one is the autonomous gasification of private country house.

Autonomous gasification of a private house is an independent gas supply, propane-butane gas, using a gas tank (gas holder), which is located underground. Such a container can be purchased on the market. Gas tanks come in different sizes, depending on affordable prices and high quality.

At first glance, autonomous gasification represents only positive aspects, but, unfortunately, as in any business, there are negative aspects. This is safety and not small costs. But all this can be fixed. Once you spend a certain amount, you will quickly recoup it. Safety depends only on the correctness of the project according to which the autonomous gas supply system will be installed. And only, not conscientious work of a company that provides autonomous gasification services can provoke the emergence of dangerous situations.

What type of fuel should I choose for gasification?

This is something worth thinking about. Most choose gas. At this time, this is one of the most optimal and cheapest options. You won’t have to think about where to store your fuel, because it goes along the highway, straight to your home. Unfortunately, there are houses that cannot be connected to the highway. In such a situation, the most profitable option is liquefied carbon gas.

Heating with carbon gas is inexpensive and economical. It has a huge advantage: it contains less sulfur compounds, has no odor, and when burned, remains minimal amount soot. Choosing propane-butane will be the right decision.

Where to start with autonomous gasification of your country house?

First, you need to study the earthen area and draw up a work plan. Initially, the size of the plot should allow placing a tank for storing liquefied gas no less than 10 meters from a residential building. Therefore, if a house is being built from scratch, it is better to immediately provide for the possibility of installing equipment before starting construction of a country house. The tank itself is located either underground or placed on special supports. In all actions, safety rules must be observed. When choosing an organization that will install autonomous gasification for your private home, be sure to pay attention to whether the company has a license to engage in this type of activity.

Advantages of autonomous gasification:

• Autonomous gasification is Safe, profitable and economical.
• You do not depend on centralized gas supply systems.
• Refilling the gas tank with gas only 1-2 times a year.
• When burned, gas does not emit substances harmful to the body.
• Autonomous gasification systems have very long term service, system wear and tear is reduced to zero.
• Installation of autonomous gasification is carried out in a short time, without the use of heavy equipment.
• A special autonomous gasification project that is suitable only for you, regardless of the characteristics of your landscape.
• Thanks to the versatility of such an autonomous gasification system, you can connect additional gas equipment without approval.

Safety of the autonomous gas supply system:

Any autonomous gas supply system contains safety equipment.

Therefore, using an autonomous gasification system is absolutely safe. With proper and high-quality installation of such a system, it will serve you for many years. Gas containers (gas holders) must be checked for the strength of welded joints and are provided with special protection against current. Gas tanks are installed only on a solid foundation, which eliminates deformation of such a structure. Enterprises that are engaged in design and installation work for the installation of autonomous gas supply must have a license for such types of work.

Disadvantages of autonomous gasification:

Like any system, everywhere has its drawbacks. The main disadvantage of autonomous gasification is the refilling of the tank. Liquefied gas is highly explosive, but if everything is done efficiently and correctly, then this probability is below zero. The most important thing, when installing autonomous gasification, is to choose the right company that is engaged in design and installation work, and to follow all the rules during installation.

So the moment has come when all the difficulties are behind, your cottage is gasified. Read the safety instructions to your family, explain to them in great detail what is not allowed and what is allowed. And, it’s time to boldly enjoy a comfortable existence, safety and environmental friendliness.

egs-spb.ru

Pros and cons of autonomous gasification

Please note that gas fuel is intended for combustion and is therefore considered explosive and its use is carefully controlled. Therefore, if you decide to create an autonomous gasification system in a country house, you should trust the work only to an official company that has the appropriate approvals and certification.

An autonomous gasification system is a complex configuration consisting of many modules, each of which is essential for normal, stable and, most importantly, safe operation. Therefore, we do not recommend saving on components by discarding individual parts or replacing them with low-quality analogues.

Disadvantages of autonomous gasification

• On the one hand, this system eliminates the need to regularly refill fuel tanks, as required by liquid or solid fuel options. However, this entails other responsibilities; in particular, the owner must constantly monitor the condition of the gas tank to avoid gas leaks. It is also necessary to monitor the remaining gas so that at the very important point the system did not shut down due to lack of fuel.

This is easy to do thanks to modern telemetry modules; modifications of some of them can transmit data even remotely via the Internet or GSM connection.

• During the evaporation process, condensate forms on the walls of the gas tank, which, if it enters the gearbox, can cause malfunctions in the system.

The gas tank models offered by our company have increased insurance against such manifestations. Their selection will be made by qualified specialists who are well-versed in determining parameters taking into account operating conditions, soil type and technological features gas consuming installation.

• In conclusion, it should be noted the importance of choosing a fuel supplier for refueling gas tanks, a trusted and responsible partner.

Advantages of autonomous gas supply

Some users note the high cost of all work in combination with the purchase of equipment as a disadvantage of autonomous gasification. However, it is important to take into account other economic components:

• the price of fuel in comparison with other energy resources;
• system performance;
• fuel storage costs;
• high practicality, because when connecting to the main gas pipeline in the future, the property owner will not be required to incur additional costs for refurbishment of the system!

In addition to this:

• Savings, because cost of heat generated using gas fuel mixture many times cheaper than other analogues.
• Environmental friendliness, because gas combustion causes damage environment minimal.
• No unpleasant odors from exhaust.
• The durability of the equipment is approximately a quarter higher than that of liquid heating units.
• Wide range of possibilities, because liquefied gas from a gas holder can be used not only to heat the building, but also for cooking.
• Absolute ease of use.

You can also find information on the topic:

Ready-made solutions for autonomous gasification:

Related articles:

Still have questions? We will help you make the right choice!

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Autonomous gasification of a private house

In an attempt to gain energy independence, the owners of houses and cottages go to all sorts of tricks, install wind generators, solar panels. Ultimately, having gone through a lot of options, they return to gas. Of course, for those villages where gas is supplied there are no questions, but what about those whose homes have been bypassed by civilization? How to bring gas into the house if the gas pipeline is not even in the plans of the local authorities? Let's figure out what autonomous gasification of a private house is (more details here http://www.etalongaz.ru/avtonomnaya_gazifikatsiya.html?

Scheme of autonomous gas supply for a private house

In general terms, the simplest autonomous gasification can be called the installation of liquefied gas cylinders. This option is only acceptable for a dacha or summer house, where you just need to cook food on a gas stove. But what should you do if you not only need to cook dinners, but also heat the house and heat water for the bathroom? For these purposes, gas tanks are installed - these are large tanks for storing natural or any other gas. There are gas holders of constant volume, which are spherical or cylindrical steel tanks. Gas is stored in them under pressure up to 1.8 MPa. Thus, autonomous gas supply to cottages is carried out using underground or above-ground gas holders with a volume of 20 to 50 cubic meters. It is possible to make a gas tank by connecting several liquefied gas cylinders.

The volume of the gas tank should be determined only on the basis of calculations that take into account the gas consumption of each device in the system. The pressure in the autonomous gas supply system is created due to the evaporation of liquefied gas; the faster the gas evaporates, the more pressure in the system, therefore it is very important to correctly calculate the volume of the gas tank itself or use devices that increase fuel evaporation.

By the way, by installing an autonomous gas supply system in your home, you can provide yourself with an emergency or constant source of electricity; for this, it is enough to purchase a gas generator. The issue of autonomous heating of a country house http://www.etalongaz.ru/otoplenie_chastnih_domov_.html is also resolved, a double-circuit gas boiler and the correct calculation of heating radiators will make your home warm and cozy even in the most severe frost.

Installation of an autonomous gasification system

Gas tank installation

The gas storage tank must be installed below the freezing point of the soil, at concrete base to prevent any movement of the gas tank during soil shrinkage. Then, as a rule, a polyethylene pipeline is laid from the tank to the kitchen or boiler room, where the control equipment is installed. Modern electronics will not only supply gas to gas appliances, but also monitor gas leaks, and if there is one, turn off the gas supply and notify the owners.

It is worth noting that connecting a group of houses or cottages will significantly reduce the cost of installing an autonomous gas supply system. An economic calculation showed that if 15 houses are connected to a common autonomous gasification system, then the cost of gas supply to each house will be two times lower than with an individual project.

Most likely, it would be superfluous to mention that doing gasification work on your home yourself is not only a bad idea, but also dangerous for you and your household, so finding professionals in this matter is your first task.

stroy-dom.info

Gasification intensity - Chemist's Handbook 21

In our country, boiler fuels are the most widely used petroleum product. However, due to the intensive gasification of boiler plants or their transfer to solid forms

It is proposed to gasify liquid hydrocarbons with water vapor in a fluidized bed of catalyst particles in an ascending layer of superheated steam and particles. Part of the resulting gas is returned to the process, mixing it with superheated water vapor in order to obtain hydrogen from it, which is believed to increase the intensity of the process (see Table 32, No. 3). The catalyst is separated from the gas stream and sent for regeneration by burning off the carbon deposited on it. When processing heavy raw materials (fuel oil), an additional operation is used to evaporate hydrocarbons on the surface of inert solid coke particles on which coke and ash are deposited. The volatile part of the raw material is processed as described above.

At the same time, the yield of by-products continuously increased from 5.5% for light naphthas to 8.5 and 15%, respectively, for heavy naphthas and kerosene. The main difficulty in conducting the process when processing high-boiling materials is the impossibility of complete evaporation of the raw material, especially at the increased pressure required for gasification of high-boiling liquid hydrocarbons. If these hydrocarbons remain liquid at the inlet temperature (450°C), extensive cracking will occur throughout the volume. To avoid this, hydrogen is sometimes heated separately to a temperature significantly higher than the temperature of the liquid feed.

To cover the heat deficit during dry distillation and coal gasification processes, attempts are being made to use hot, high-pressure hydrogen to initiate the process of methanization of coke residue, which is exothermic, and simultaneously devolatilize the coal. This technology is used in the HIGAS process and the Hydran process; its advantage is that in this case a raw gas is formed that already contains some methane, and therefore a less intensive methanization process is required to obtain HPG. However, the hydrogen necessary for this purpose can be obtained by gasifying part of the coke residue with steam-oxygen blast, or by additional processing of water gas in order to increase the hydrogen content in it.

The intensity of soot entrainment should be determined by the ratio of the forces holding soot particles near the surface and the friction forces in the gas flow. In the processes of particle transfer, a significant role can be played by the phenomenon of thermophoresis, caused by the presence of a large temperature gradient near the boiler stack. The work found a dependence of the pollution coefficient e on the mass velocity 17 (data obtained in a pilot plant for the gasification of sulfur fuel oil) with a soot content in the gas of 3.5 g/m (Fig. 68). For a different soot concentration in the gas (g, g/m), a correction factor K is introduced. The dependence of the correction factor on the soot concentration in the gas is shown in Fig. 69.

Fluidized bed gas generators that use finely dispersed fuel have the maximum intensity. In Fig. Figure 9.11 shows a technological scheme for the production of water gas by gasification in a fluidized bed.

The requirements for raw materials in this process are less stringent than in the Lurgi process - gasification of high-ash (up to 40%) and caking coals is possible. However, it is preferable to use coals with sufficiently high reactivity - brown coals, reactive bituminous coals, lignite coke and semi-coke with particle size mixing of solid particles in the fluidized bed leads to a practically isothermal regime, which facilitates temperature control in the reactor.

Expressed by D.I. Mendeleev back in 1888, the idea of ​​underground gasification received its intensive development in the 1940s. In the USSR, USA, and France, research and pilot testing of new developments are still being carried out. Domestic developments not only had priority, but were also carried out on a larger scale.

However, their reserves are declining, and for some types of fuel and in some regions they are close to depletion. On the other hand, the intensive development of the chemical industry of synthetic materials requires a significant increase in the consumption of organic and mineral raw materials. Oil, coal, and natural gases are the raw materials for producing such materials using controlled organic synthesis. The integrated use of feedstock is currently based on the production of new types of fuel (for example, gasification solid fuel) and organic and inorganic products and intermediates.

The intensity of fuel gasification is usually understood as the weight of fuel gasified per unit time, per unit cross-section of the gas generator shaft.

In the pre-war years, intensive use of natural and artificial gas for domestic needs began, gas consumption in Moscow and Leningrad was expanded, gasification of Grozny, Zhdanov, Makeevka and other cities and workers’ settlements began.

In the case when the gasification process on the surface proceeds much more intensely than the reverse process and there is no radiation, dn = 0, the value of m increases monotonically with increasing pressure and asymptotically approaches the maximum value at poo (Fig. 2). Heat losses (dp 0) do not noticeably change this result for large values ​​of m, but for small values ​​of m there is a minimum value of p, below which a solution for m does not exist. For values ​​of p greater than the minimum, the function m (p) is a two-valued function, like shown schematically in Fig. 2. Apparently, a smaller value of m corresponds to an unstable solution, and the minimum value of p determines the lower limit of flame propagation by pressure. Comparison of theoretical and experimental results for the case of combustion of pure solid perchlorate

Much better than in an ordinary torch, the process of mass gasification is organized in any, even the most primitive layer. A fixed layer of lump fuel on a simple grate, blown with air, represents a well-organized zone of gasification of solid fuel. In a stabilized process, even when working with cold air, very high temperatures rapidly develop in the layer along the flow of this air, reaching 1,700-1,800 ° C. At such temperatures and the presence of oxygen in the air, the gasification process proceeds very intensively and releases gaseous intermediates into the furnace gasification, which should burn already in the combustion space in a flame (torch) way, i.e. in a purely diffusion-type process, if there is a sufficient amount of free oxygen in this space, which is actively attracted to true mixture formation.)8

The purpose of the study of bench and industrial cyclone furnaces, both in our country and abroad, was mainly to find the dependence of the overall final characteristics of the combustion process on the operating conditions and design ratios of the chamber dimensions. Meanwhile, a correct and complete explanation of the impact of certain regime conditions and design parameters on the final characteristics of the camera operation is impossible without studying the structure of the process, with the internal nature of which all the total effects are inextricably linked. The process structure is usually understood as the position, size and intensity of work. different zones(zones of mixture formation, fuel ignition, gasification of solid particles, etc.) arising in the combustion chamber during fuel combustion.

During the grinding of shale, large dust particles are enriched with calcium carbonate, and fine dust fractions are enriched with alkali metal compounds. Thus, the ash components capable of contaminating the heating surfaces are most concentrated in the extreme dust fractions. Based on this, the Leningrad Polytechnic Institute, together with the Tallinn Polytechnic Institute and other organizations, proposed a method for burning shale, which provides for the gasification of large dust fractions in a low-temperature reactor, followed by the combustion of thermal decomposition products of the fuel in a furnace, and a small part of the dust is burned in the gas duct of the steam generator behind the furnace at a temperature not exceeding the temperature of intense volatilization of alkali metals from the fuel.

In addition, the gas contains less Hj, CO and COj. There is no burnt coke during unloading. The solid residue during pyrolysis, which makes up 2-5% of the total coke, is also considered coke. It is likely that this systematic discrepancy with the Marieno coke oven battery is explained by the fact that the gasification reaction of coke with water vapor proceeds less intensively in the Jenkner retort due to the shorter duration of contact of the gas with the hot coke. The discrepancy with the results obtained from a coke oven battery could possibly be reduced by lining the pyrolyzer with refractory bricks.

A classic confirmation of the diffusion nature of the process is the influence of particle size. More intensive removal of sulfur with a higher initial content is explained by an earlier start of sulfur removal with the formation of a larger number of transport channels with the opening of pores, which is equivalent to coke grinding. The process of hydrodesulfurization is also realized through the opening of pores through the destruction of the carbon matrix by gasification with hydrogen. The deepening of the thermal desulfurization process during two-stage heat treatment is explained by the formation of microcracks - pores due to stress relaxation. Hardening the structure and increasing the strength of the carbon matrix of cokes from oxidized raw materials and raw materials treated with acid slow down the thermal desulfurization process.

The effect of temperature on the gasification process at different degrees of mixing of raw materials and the resulting soot with air and combustion products is not the same. In Fig. Figure 41 shows the dependence of the specific geometric surface of soot particles on the average temperature of the combustion process of raw materials in a macrodiffusion flame (at low mixing ratios of raw materials with air). It can be seen from the figure that, under these conditions, the specific surface area of ​​soot particles reaches its limiting value at relatively low temperatures (1600 K). At high mixing ratios (in a microdiffusion flame), such a limiting value of the specific surface area is not reached even at higher temperatures (2100 K), since conditions for intensive gasification are created.

As can be seen from the figure, combustion of charcoal particles smaller than 500 microns occurs in the region of the non-burning boundary layer (if wet gasification reactions are not taken into account) in almost the entire range of possible temperatures. With the accepted values ​​of the kinetic characteristics, the torch combustion of particles corresponds to the kinetic and intermediate regions and proceeds according to the scheme of a non-burning boundary layer (6 500 μm and 1800° K). The combustion of particles larger than 1-5 mm in size, which is encountered during layered combustion of fuel, occurs in the region of the burning boundary layer (5e > 0.4). The transition to this area for various combustion devices (conventional counterflow furnaces and high-speed combustion furnaces) occurs when different meanings temperature due to the unequal intensity of material exchange in the layer. If the area of ​​burnout of a carbon particle is determined, then we can proceed to determining the time of its burnout.

The peculiarity of layer combustion is that during combustion the fuel lies in a layer of greater or less thickness on a grate (or in a special shaft) and the air necessary for combustion and gasification is blown through the fuel layer. The nature of combustion depends on the chemical activity of the fuel, its fractional composition, ballast content, behavior of the zone and coke residue, etc. Regulating the intensity of combustion is usually carried out by changing the flow of blast air. During combustion, combustion products, unburnt products of thermal decomposition of fuel and small fuel particles are carried out of the layer into the combustion space above the layer. The completion of their combustion occurs in the combustion space above the layer. As a result, its value is chosen to avoid losses due to chemical and mechanical underburning.

The intensity or acceleration of gasification, in addition to the nature of the fuel, is greatly influenced by the amount of resistance to the movement of gases through the fuel layer and the uniformity of fuel distribution across the cross section of the gas generator. In this case, the main factor on which the intensity of gasification depends is the physicochemical nature of the processed fuel ( size of pieces, sinterability, moisture and ash content, etc.).

Gasification intensity and productivity of modern semi-mechanized gas generators

Method of gasification and type of processed fuel Gasification intensity Gas generator productivity in m 1 hour

The intensity of gasification can be increased by using fine-grained fuel with a large reaction surface of the particles. It turned out to be advisable to gasify fine-grained fuel in a boiling and suspended state, which not only increased intensification. process, but also made it possible to significantly expand the gasification raw material base due to. low-grade fuels (dust, chips, coal, semi-coke and other fines, etc.).

The principle of gasification of fine-grained fuel in a fluidized bed is that at a certain blast speed and fuel size, the layer of fuel lying on the grate begins to move. in appearance resembling boiling liquid. Provides intensive mixing of freshly loaded raw materials with hot coal and air. maintaining practically the same temperature in gas generators with a fluidized bed. along its entire height. Because of this, in this type of gas generators it is impossible to distinguish temperature zones that are characteristic of layer gas generators.

Similar government considerations have recently led to intensive government support in a number of countries outside the United States for the development of hard and brown coal deposits. Australia will soon begin gasification of brown coal to produce gasoline and heating fuels. The shortage of hard coals and the absence of any significant oil deposits forced the state-owned Gas and Electricity Corporation to begin construction of a plant in Victoria (Australia) costing about $24 million. This plant will gasify brown coal using the Lurgi process, carried out in Germany for 20 years already. The first stage of the plant provides for the production of only fuel gas, tar and a small amount of gasoline. However, in the future it is planned to increase the production of gasoline to 600 m per day and organize the production of diesel fuel, heating oils, fuel gas and chemical products. IN South Africa A government plant for the production of liquid fuels from coal was launched several years ago near Johannesburg. It produces gasoline, boiler and diesel fuel, phenols, aromatic solvents, resins, creosote and other types of chemical raw materials. Although it was initially assumed that government subsidies for the operation of the plant would not be required...

In the solid fuel combustion model considered here, the possibility of radiation heat losses from the surface of the condensed phase is taken into account, homogeneous reactions in the gas phase and gasification on the surface are taken into account, which can occur either much more intensely than the reverse process (unhindered gasification), or be in equilibrium, or have an intermediate character. Rosen was the first to explore this type of model. He determined the burning rates of solid rocket fuels, in which the gasification process determines the burning rate (formula (b) is valid), and there are no heat losses. Johnson and Nachbar obtained very accurate values ​​for the value of m using similar assumptions regarding the gasification process, but taking into account radiation from the surface. Using the approximate graphical method, Spalding [1] revealed many qualitative features of the behavior of the value m in the case of unhindered gasification, which determines the combustion rate [formula (6)], and under equilibrium conditions on the surface [formula (12)], both with and without taking into account radiation heat loss. Studies carried out under the assumption of the intermediate nature of the process on the surface [formula (I)] have not been reported in the literature.

After the fuel warms up to the appropriate temperature level, the stage of pyrogenetic decomposition begins with the release of volatiles and coke formation. Under the influence of the environment and high temperature, the primary composition of volatiles itself undergoes profound changes, finally becoming gasified before entering into an intense combustion process. In essence, the actual fuel that actually enters into the active combustion process is not the primary fuel, but this fuel gas, a product of gasification of volatiles and solid carbon coke. The combustion mechanism of these final fuels is completely different, and the very process of their combustion occurs either non-simultaneously in the same place of the combustion chamber (fixed layer), or simultaneously, but in different zones of the combustion chamber (moving layer). Solid carbon also undergoes, if not complete, then at least partial preliminary gasification.

The practice of circulating-vortex furnaces has shown that free-peat ash has noticeable abrasive properties, which forced the entire streamlined surface, which is washed by the primary air jet and which can be intensively abraded by peat particles, to be constructed in the form of screen pipes, topped with well-fitting cast-iron tiles. The lower circulation part of the furnace space of the Shershnev furnace plays the role of a gasifier. In it, along with partial combustion, enhanced gasification of the fuel occurs. After the particles circulating in it are crushed to the size at which they begin to obey the law of soaring, they can be carried along with the gaseous products of combustion and combustible gas into the afterburning space of the furnace, in which

The presence of such cold walls near the pulverized coal chambers does not go unpunished for the development of the flare process. It leads to an extremely uneven distribution of temperatures over the chamber cross section, which turn out to be very high in the central parts of the flow, remote from wall cold, and greatly underestimated near cold walls, which take significant amounts of heat from the gas and particles for direct impact, i.e., on intense radiation perception of cold screen heating surfaces. That part of the air flow, which passes through the central, high-temperature zones of the furnace, enters into early and rapid gas formation of strongly heated particles. The rest, the edge sections of the dusty air flow, passing through the supercooled zones, sluggishly participate in the process of fuel gasification, and sometimes, with the unsuccessful outlines of the combustion chamber and its irrational combination with pulverized coal burners, this part of the ash does not even have time to enter into the gasification process and is taken out in an unused view into the gas ducts.

It is believed that SO3 is formed almost entirely during the combustion of liquid fuels. The SO3 output increases as the excess air increases and the temperature decreases. The gasification of liquid fuel vapors entering the combustion zone of each individual drop, and the combustion of the coke residue, depending on the intensity of the air supply and the temperature level, is accompanied by the release of CO, Hg, C2H2, CH4 and other heavier hydrocarbons with abundant soot formation. Under these conditions, reduction reactions of the type SOg + CO CO + SOj occur simultaneously with the formation of SO3.

The ENERGOGAZ group of companies is an organization that is capable of providing a decent level of gas supply and gasification services to private and commercial buildings in Moscow. The company is ready to offer complex and turnkey work. Our customers have a wide range of options at their disposal: supplying gas to a private home, construction of gas pipelines, installation of gas equipment, gas supply to residential and industrial buildings and much more. Our company performs work with a 100% guarantee of results!

COMPLEX GASIFICATION AND GAS SUPPLY PROJECTS

WE ARE WORKING:

We work with both legal entities and private clients. Our projects include both small-scale work on connecting country houses to gas, and complex tasks on gasification of large industrial facilities.

For private clients For companies and firms For government organizations

HELP WITH GAS SUPPLY IN MOSCOW

CONDUCT GAS, GASIFICATION IN MOSCOW

The ENERGOGAZ group of companies offers the following services:

• Turnkey gasification works in Moscow.
• Gas supply to a private home or commercial facility in the city of Vidnoye.
• An integrated approach from project preparation and receipt technical specifications before service.
• Legal support at all stages of work.

You can also order any gas equipment from our company.

The company has the power to:

• Selection of equipment according to the requirements of the facility.
• Free delivery of a gas boiler.
• Installation, configuration, testing of its operation.
• Repair work and gas boiler maintenance services, if necessary, for the entire service life.

SERVICES OF THE ENERGOGAZ COMPANY

In our company you can order the following work: connecting gas to the house, laying, constructing and repairing gas pipelines in Moscow; conduct main gas to residential and commercial properties; gasification of a private house on a turnkey basis; design of gas supply systems. We also carry out work on the installation and repair of gas equipment. We give guarantees for the services performed. An integrated approach to the provision of services is ensured by the involvement of all structures of our company. The quality guarantee is confirmed by successfully implemented projects and all necessary certificates and approvals.

We have already completed gasification work in various administrative districts of Moscow. Let's take a few examples:

• SNT "Kvant", located at the address: Moscow, Troitsky Autonomous Okrug, Rogovskoye village, near the village of Kamenka;
• SNT "Voskhod", located at the address: Moscow, Troitsky Autonomous Okrug, Rogovskoye village, near the village. Spas-Purchase;
• SNT "Michurinets", located at the address: Moscow, Novomoskovsky Autonomous Okrug, Moskovsky village, near the village of Govorovo;
• SNT "Rodnichok", located at the address: Moscow, Novomoskovsky Autonomous Okrug, Moskovsky village, near the village of Meshkovo;
• DNP "Dubravushka", located at the address: Moscow, Troitsky Autonomous Okrug, Voronovskoye village, near the village of Yasenki;
• NST "Gazoprovod" and KIZK "Cottage", located at the address: Moscow, Troitsky Autonomous Okrug, near the village of Kiselevo.

Performed the functions of technical customer for gasification of SNT "Pobeda", located at the address: Moscow, Troitsky Autonomous District, Voronovskoye village, near the village of Babenki.

COST OF GASIFICATION SERVICES IN MOSCOW

We are able to make a price offer that captivates with both its availability and transparency. You can find out prices for gasification and gas supply services in Moscow from our specialists. The cost of drawing up a gas connection project, building a gas pipeline, installing gas equipment in a private house and other gasification work remains fixed throughout the implementation of all stages.

For example, the cost of gasification of a residential building with a total area of ​​205 m2 in the Volokolamsk region amounted to 291,418 rubles. In this case, we performed the following works: working draft; approval of the working draft; construction and installation work (from the fence to the house 8 running meters, in the house the gas pipeline is connected to the installation site of the gas stove and boiler); collection of a set of executive and technical documentation; supply, installation and commissioning of the Buderus 072-24K boiler; commissioning of the facility.

The total amount includes the cost of the boiler, boiler installation and commissioning.

EXAMPLES OF PRICES FOR SPECIFIC SERVICES

Service	Description	The cost of legal faces	Cost of physical faces
Thermal calculation	Determining the amount of gas consumption	from 15,000 rub.	from 4,000 rub.
Engineering and geodetic surveys	Creation of an engineering-geodetic (topographic) site plan	from 35,000 rub./ha	from 10,000 rub./plot
Performing the functions of a technical customer	Obtaining technical specifications, obtaining a contract for technological connection, approval, obtaining the necessary permits, collecting executive and technical documentation, preparing documents necessary for putting the facility into operation	10% of the cost of the full range of works on gasification of the facility	25,000 rub. Moscow region; 35,000 rub. New Moscow
Design work	A residential building gasification project involving the laying of a gas pipeline to the building being gasified, the installation of a gas pipeline to gas-consuming equipment, the selection and placement of gas-consuming equipment	determined by estimate	from 20,000 rub.
Construction and installation works	Completed construction and installation work. A gas pipeline was laid from the connection point to the gas-using equipment (taps were installed in front of the equipment installation site)	determined by estimate	from 80,000 rub.
Equipment supply	Complete set and supply of equipment, installation and commissioning (commissioning), the example considered is the Buderus U072-24K boiler		The cost of the boiler is 32,000 rubles. installation + commissioning 16,000 rub.

Autonomous gas supply - how expensive will such independence cost? Active gasification

Autonomous gasification of a private house on a turnkey basis. Full review

Wanting to provide gas to their home, every owner must ask a basic question. Is it possible in the area to power the building from main gas networks? Not every residential area has gas pipelines that you can connect to with your own subscriber input.

Even if there is a large pipe running through the site, which, in the opinion of the homeowner, can become an excellent source of gas supply, do not delude yourself. It may well be that this gas pipeline is not intended to supply private buildings, but supplies high-pressure gas to production.

It is strictly prohibited to connect to such networks without permission, and no one will give permission to connect. What to do?

The concept of autonomous gasification

Autonomous gas supply scheme If, ​​after contacting the gas service, it turns out that natural gas really cannot be supplied to the site, there is only one option to solve the problem. Provide gas supply to the house from an individual source.

For all engineering communications There is a concept of autonomous supply. In water supply networks, the autonomous source is your own well, in heating - a mini-boiler room, in ventilation - an individual air handling unit.

For autonomous gasification at home, equipment for storing and using liquefied petroleum gas (LPG) is used.

Helpful information: a simple complex of structures allows you to provide gas supply to all household appliances at home without connecting to gas pipeline networks, obtaining technical specifications and other permitting documentation.

Necessary equipment

The main element of an individual gas supply system is rightfully considered a gas holder - a container for storing fuel.

The variety of design solutions allows you to install it on the site above ground or underground, in horizontal or vertical modification, naturally, with the function of regular refueling. The volume of injected gas is calculated based on the hourly demand of the house.

The following are considered as the main consumer devices:

• hot water gas boiler;
• geyser;
• kitchen gas stove;
• hearth or fireplace.

Each of these devices must have a technical passport, which must indicate the hourly and second gas consumption. Knowing the characteristics of the device, the number of hours of operation per day and the properties of the gas, the hourly, daily and annual fuel requirements are calculated.

Based on this value, taking into account a small reserve, the minimum required volume of the gas tank is determined. For small private houses it does not exceed 3000 liters.

Keep in mind: it is better to entrust the choice of equipment installation location and its characteristics to designers.

In addition to the fuel storage, it is necessary to provide for the installation of a number of means to control the gas supply to the house. This includes:

1. Shut-off valve required to shut off the gas supply from the gas tank.
2. Pressure gauges for monitoring the pressure inside and at the outlet of the gas tank.
3. Gas reducer, designed to reduce gas pressure to the minimum permitted values. Household appliances cannot operate on medium pressure gas, and it is in this state that it is stored in a gas holder.
4. Low pressure gas pipeline supplying gas to the house.
5. Gas meter, which is installed to record the flow of gas.
6. Automatic protection systems necessary for monitoring and warning of possible gas leaks.
7. Fire protection systems. Here we are talking about a thermal shut-off valve, which, upon reaching a certain temperature in the room, automatically shuts off the flow of gas through the gas pipeline.
8. Home gas appliances that directly consume gas.

What does turnkey gasification include?

Companies that arrange a gas supply system of utmost readiness take responsibility for performing a whole range of services.

This includes:

1. Departure to the place and measurement of all dimensions of the site. This work is necessary to draw up a site plan, place all existing buildings on it, determine the degree of improvement and outline the location of the future gas tank and gas pipeline.
2. Building a plan of the house with the application of all gas-consuming devices on it. Collection of passport and technical characteristics of equipment.
3. System design taking into account the requirements of modern regulatory documentation. This includes the selection and correct placement of a gas tank, routing of a low-pressure gas pipeline throughout the site and the house, selection of the necessary shut-off, control valves and automation.
4. Purchase of certified equipment and materials from specialized stores and its delivery to the construction site.
5. Installation of the designed system. If it is impossible to carry out construction strictly in accordance with the project, call designers to adjust the decisions made.
6. Conducting gas pipeline tests and troubleshooting.
7. Providing a guarantee for work performed.

Gas consumption

You need to understand that there are no universal gas consumption characteristics that will suit every home. The amount of fuel used in the house is affected by many things that are only revealed at the inspection stage.

Two outwardly similar cottages may have completely different gas costs.

Gas consumption at home depends on:

• thermal properties of enclosing structures. The presence of a good insulating layer significantly reduces heating costs;
• climatic area of ​​construction;
• total area of ​​the building;
• the method of heating the house, the presence of heated floors and a fireplace;
• number of gas-consuming appliances: boiler, water heater, gas stoves;
• number of parsing points hot water;
• degree of automation of gas supply and heating systems, allowing to turn off the fuel supply in any emergency situations;
• the individual level of comfort of the residents of the house, which is expressed in the degree of heating of the premises in the cold season, the frequency of cooking and the use of hot water.

The annual gas consumption will be 2700 liters, if we take as a basis a house with the following characteristics:

• one-story, with an area of ​​100 m2, built in central Russia;
• the house has one domestic boiler and 1 kitchen stove, no heated floor;
• three mixers;
• There is an automation system for turning off gas in case of fire or accident.

Operating experience

The majority of owners of private houses who have organized an autonomous gas supply on their property are satisfied.

First of all, people are attracted by the quick installation of a gas supply system, which will not entail bureaucratic red tape.

Secondly, independence from the gas supply organization, which sets its own rules for the use of gas. In addition, installing a gas supply using liquefied petroleum gas is much cheaper than preparing a natural gas consumption system.

If the homeowner does not have the opportunity to gasify the house from a common gas main, it is always possible to install an independent gas consumption system. As a result, a set of devices will be quickly installed on an empty site that can be freely used, regardless of gas service permits.

Watch the video in which people share their experience of operating an autonomous gas supply system:

heat.guru

Methods of gasification of a country house

Residents of rural areas and country cottage villages want to enjoy the same benefits of civilization that are available in the city: electricity, water supply, Internet, television. One of the most difficult engineering tasks is gas supply to a private home. Is it possible to solve this problem and what are the ways?

Gas supply in a private house

On the outskirts of large cities, solving the issue of gas supply is quite simple, since there are centralized pipelines to which you can connect. This service is not cheap, but if you purchase a ready-made cottage within the city, it is usually connected to all communications.

If you live in one of the districts of the Moscow region, gas supply must be ordered from public or private companies. You will be offered two options:

• connection to the highway;
• autonomous gas supply.

Connecting to the highway is only possible if it passes through your village. Pulling a pipe from a long distance is an expensive pleasure. But if the entire village draws up an application and submits it to the relevant authorities, then the cost will be equally divided among all households that have expressed a desire to connect to gas.

There are several options for autonomous gasification:

• installation of underground gas tanks;
• installation gas cylinders;
• installation of a mobile gas tank on a trailer.

The last two methods will be ideal if your house is not the largest, and you only use gas for cooking. If you want to install a double-circuit gas boiler that will work for heating and water heating, then even a few cylinders are unlikely to be enough for a long period of time.

Installing a gas tank is a complex task, since a tank with a volume of over two thousand liters will be placed in a pre-prepared pit and backfilled. Pipes are led from it to the auxiliary rooms of the boiler room. This volume of gas at economical consumption enough for six months. It is also important to choose a boiler with a high coefficient useful action.

The advantages are obvious: water heating and heating, the ability to take a hot bath or shower, you do not depend on the central gas system. But the disadvantages also make themselves felt: high cost installation work, it is necessary to regularly fill the container with gas and carry out its maintenance.

www.e-joe.ru

Autonomous gasification of a private house: gas consumption, recommendations, tips

Warm radiators, a hot bath and cooking with gas are commonplace for city dwellers, but for owners of suburban areas and summer cottages all this is often unavailable, so autonomous gasification of a private home becomes necessary.

Thanks to an autonomous gas supply system, owners of dachas and suburban areas will be able to heat their homes at any time of the year, while spending much less money than heating with electricity and other methods.

Features of autonomous gasification

When installing an autonomous system, gas is supplied not from the central pipeline, but from its own storage facility.

An example of the simplest such gas system is known to everyone - these are propane-butane cylinders that are connected to the tiles in the country.

However, such cylinders will not be enough for anything more than cooking. To heat the whole house, other containers are used - gas tanks.

Autonomous gasification is very simple system, operating independently of the central gas supply using liquefied gas.

Installing such a system has many advantages:

• First of all, propane-butane mixture is a fairly economical type of fuel that is easy to deliver to its destination;
• Propane-butane is environmentally friendly and safe for the environment;
• The efficiency of autonomous gas heating is about 97%;
• With such heating, there are no combustion products, as well as gas and burning odors;
• Autonomous gasification is installed very quickly, usually all work takes less than a week;
• Autonomous gasification allows rational use personal plot country house or dacha.

The installation of the system occurs as follows: a special underground storage facility for gas supply, called a gas holder, is installed on the site.

Pipes are laid from this tank, which supply gas to consumption points. Depending on what the consumption will be, the storage is filled with liquefied gas 1 - 3 times a year.

It is delivered to its destination by special gas carriers.

When the gas in the liquid state enters the tank, it changes from the liquid state to gas due to the heat of the earth, and the vapor phase enters the pipe under low pressure to the points of consumption.

Many are interested in what fuel consumption is with such a heating system for a suburban building.

Studying the reviews of those who already use such a system, we can conclude that a lot depends on the size of your suburban home and other nuances, but you can reduce consumption consumption through control and regulation functions.

Propane-butane

Autonomous gasification is carried out by methane, which is unusual for us, but by liquefied propane-butane, which is usually also used for refueling vehicles.

Conventional natural gas, which we receive through a centralized pipeline, is very difficult to store, unlike a propane-butane mixture.

Natural gas can be liquefied at -160°C and under a pressure of 200 bar, and it is very difficult to obtain such conditions.

Purchasing natural gas in a liquefied state is also quite problematic, while propane-butane is sold at any gas station.

Propane-butane has many advantages, one of which is its efficiency.

The combustion of this mixture releases more energy than the combustion of main gas, so the consumption of such fuel is significantly less.

However, this fuel also has disadvantages - when the temperature in the storage drops, condensation forms, which prevents gas from passing normally through the pipeline, so storage tanks are installed below the freezing level so that the temperature in the tank is always positive.

Many people fear that this system is not a safe heating method and choose other options.

However, you should know that the design is completely safe, thanks to the low pressure in the system, grounding and special sensors that close the necessary valves in the event of a leak.

Autonomous gasification device

The device of such a system can be studied according to this scheme.

Its basis is an underground tank - a gas tank equipped with:

• safety valve;
• liquid phase selection valve;
• steam extraction valve:
• level gauge;
• filling valve;
• system pressure regulator.

In our climate zone, horizontal storage facilities produced by the Chemet plant are usually used.

Such gas holders can be installed below the freezing level, and the large evaporation area makes it possible to easily transition from liquid to steam without additional equipment.

High pipes and neck prevent flooding of the pressure regulator during melting water. Such tanks will work properly for many years even in the coldest winters.

The volume of the container usually averages from 4 to 9 thousand liters; depending on the size of the home, this volume of gas can be enough to heat the home for three to four months.

At the top of the tank neck there is a fitting compartment. Inside it there are shut-off valves that control the flow of gas.

In addition, there may also be a hatch, which is used if a specialist check is necessary inside the gas tank.

The next element of the system is a reinforced concrete base on which the gas tank is installed and secured.

They do this so that the empty tank does not float up when the level rises. groundwater.

For the base, take a solid reinforced concrete road slab, to which the container is attached with stainless pins through special holes in the supports.

Not far from the tank, an anode-cathode protection system is installed - magnesium alloy anodes, which are connected to the tank.

During operation of the system, magnesium oxidizes and reduces the iron from which the container is made. Thus, the service life of the tank is extended by several decades.

Installation of an underground gas pipeline

To transport gas from the storage facility to the premises, an underground pipeline is used, which is placed below the freezing depth.

Autonomous gasification of a private house involves the use special pipes made of low pressure PVC with high strength.

In order for the operation of the system to be stable and not stop even at the lowest air temperatures, it must have a condensate collector - a device that serves to accumulate and evaporate liquid butane, which appears on the vertical surfaces of the pipeline in winter and can cause a shutdown of the fuel supply.

A condensate collector is a closed container that has inlet and outlet pipes, as well as an outlet pipe, which is led outside into the gas tank casing.

Since, according to safety standards, introducing gas into a house underground is prohibited, the underground pipeline ends in a basement inlet.

This is an element made of a steel pipe, a tap and a special device that takes into account shrinkage and displacement of the structure and acquires the required form, maintaining the tightness of the connections.

The joints between polyethylene and steel pipes are permanent and are placed in a special case.

If you wish, you can also install a valve at the entrance to the room, which will be used in the event of a leak in the room.

Installation of internal gas pipeline

An internal pipeline is laid in the room, which delivers gas to points of consumption in the house.

It includes:

• taps;
• gas alarm;
• stop valve;
• pressure gauge;
• pressure stabilizers;
• consumption meter.

The pipeline to the room is made from steel pipes so that there are a minimum number of connections on it.

Thermal shut-off valve is a device that shuts off the internal gas pipeline in the event of a fire. This valve is activated when it reaches 100°C.

A gas detector is an element that monitors the air condition in the house.

It continuously checks and signals if gas vapor with a concentration of at least 10% appears in the air, and also activates a shut-off valve, which is placed on the internal pipeline.

Using two or more gas tanks

You can often find the use of several tanks at once, which are combined with steam and liquid phase.

In this way, it is possible to increase the storage volume of liquefied fuel, as well as the area of ​​its evaporation. In this case, you can fill the tanks one by one or simultaneously.

Often one gas tank is used for 2 - 3 houses or even more at once. If the houses belong to different people, then the owners of the houses must agree among themselves on the location of the tank.

In addition, metering units should be installed near each house so that there are no disputes over the amount of gas used.

If you decide to do common system, then you should take into account what kind of relationship you have with your neighbors, since the operation of the system can no longer be called autonomous.

Therefore, it is better to install your own system rather than share it with someone.

Remote system control

Since this gas system Usually installed on country houses and dachas, which are located far from highways, and, consequently, from populated areas, you can equip it with a universal GPS/GPRS module.

This element will allow you to control the gasification system from almost anywhere on earth using the Internet or mobile phone.

Thanks to this module, you can turn the system on and off while you are far from home, which will help you reduce gas consumption, and also turn on the system several hours before you arrive at your home. Vacation home.

Besides, autonomous system gas supply can also be supplemented with a remote level gauge or a telemetric fuel level monitoring system.

A remote level gauge allows you to find out the gas level in a tank right from home. A special device shows the fuel level as a percentage and signals if it falls below 10%.

The telemetry system allows you to control the fuel level in the tank using the Internet and mobile phone.

In recent years, autonomous gasification of dachas has become more common and has positive reviews.

Taking into account also its safety and efficiency, you can safely install it to heat your country home.

stroyremned.ru

Any developer thinks about choosing an energy source for heating a house. From the point of view of convenience and cost, the best option today is natural gas methane.

But what to do if there is no nearby distribution networks natural gas?

Back in the 70-80s, group tank installations for liquefied gas were widely used for gasification in Ukraine, which were eventually replaced by centralized gasification systems. In Western Europe and the USA, gasification using liquefied gas (LPG) continues to be relevant. For example, in Poland today there are over 100 thousand autonomous gasification systems.

New cottage developments today often grow at a decent distance from gas communications, and even if the communications are close, gas still does not immediately reach the villages. Most often, you have to wait for years for gas supply, after which it turns out that the initial costs of connecting to the central gas supply significantly exceed the amount of costs that you initially expected. You are even ready to consider the option of purchasing an electric boiler.

No need to hurry! Firstly, most likely you will not be able to allocate the appropriate electrical power. Secondly, in the event of a power outage, you will need a powerful diesel generator that can ensure the operation of the electric boiler for a certain period.

Any energy carrier is used to obtain thermal energy. Therefore, to determine the economic feasibility of using liquefied gas as a source of heat, we compare the cost of 1 kW of energy obtained from it with other energy sources. The total cost of heating a private home depends on the external temperature and heat losses of the home.

Table 1. Economic efficiency of using the most popular types of fuel for heating a private home.

Select a boiler and determine its thermal power

Only a specialist can perform a reliable power calculation; however, it is easy to make an approximate calculation yourself.

It is generally accepted that for a well-insulated house with a ceiling height of up to 3 m for heating every 10 sq. meters of its area will require an average of 1 kW of boiler power. Those. for a house with an area of ​​200 sq. m it will be 20 kW. A hot heating system will require an increase in this value by 20-25%. Considering that the boiler is chosen for natural gas, it must be taken into account that a drop in pressure in the gas main entails a reduction in boiler power by 15-20%. Thus, the boiler power reserve must be increased by this amount. As a result, we have 28-30 kW.

Table 2. Comparative analysis using the most popular types of fuel for heating a private house with a total area of ​​200 sq. m with heat loss 30 kW.

Operating principle of an autonomous gasification system

The volumetric tank is buried in the ground at a distance from the house (in warm areas it is installed on the surface of the earth). A pipeline is laid from the tank neck to the house, branches from which lead to the kitchen and boiler room. The container is filled to 85% of its volume with liquefied gas from a special gas tank, which comes to you 1 to 3 times a year. The poured liquid propane-butane begins to evaporate and the evaporation (gas phase), passing through the gearboxes, flows through the pipe to the consumption devices at a low pressure of 30 mbar.

Since the gas is in a liquefied state in the tank, and is supplied to heating devices in the form of gas, heat is required to evaporate it. In its absence, the intensity of evaporation of liquefied gas is significantly reduced and its pressure decreases. The process of converting liquefied gas from a liquid directly into a gas is called regasification.

With 1 liter of liquefied gas, 0.25 cubic meters comes out. m of gas in a gas-like state. Regasification in above-ground tanks occurs under the influence of environmental heat, therefore in winter, at low air temperatures, the productivity of such tanks is significantly reduced. In underground tanks, regasification occurs due to the thermal effect of the surrounding soil, while in winter the tank receives a constant flow of heat from the depths of the soil. The gas temperature in the tank does not fall below +4C, therefore the evaporation capacity of such tanks is higher.

An autonomous gas supply system consists of a liquefied gas tank, safety valve, drain valve, level gauge, medium and low pressure reducers, piping systems. The design, construction and operation of the system are carried out by specialized organizations that have all permits and licenses.

Safety and reliability

Safety and reliability are what the consumer of any product or service is primarily interested in. In the case of autonomous gasification systems, safety and reliability must be considered in two aspects: the equipment itself and the fuel supply.

As a rule, there are no problems with equipment: its maintenance is carried out by qualified personnel according to special regulations. Each installation at the stage of its “birth” receives a serial passport, which is registered with the relevant authorities and then displays the entire history of its life. All such installations have a wide range of protection systems. Only licensed workers can be allowed to install and maintain them, and the owner of the house has the right only to visually take meter readings (by the way, do not forget to clear the container hatch of snow and look at the level gauge).

In general, this equipment is quite reliable - its service life is 20-30 years. Some items are subject to forced replacement after completion regulatory period services. This maintenance approach is familiar to many from the example of the car maintenance system.

The subconscious fear of the hidden power of liquefied gas is born of rumors, myths and horrors of television reports from the sites of explosions and fires of gas cylinders. There is a clear lack of reliable information, because an explosion or fire can only occur in the event of some deliberate action or failure to comply with basic safety rules.

But the situation with the supply of liquefied petroleum gas is ambiguous for most private household owners. This is not diesel fuel, which you can buy at any gas station. Liquefied gas is supplied only by specialized organizations.

Advantages of autonomous gasification.

Firstly, it is the comfort and ecology of gas heating. Gas is provided not only by the boiler itself, but also by the stove. There is no soot, no ash with the problem of removing it (as is the case with coal), no sulfur oxide, no odor (as is the case with diesel fuel). Liquefied hydrocarbon gas, when it gets on the ground, does not destroy it as much as diesel fuel.

Secondly, it is complete autonomy and, as a consequence, independence from drops in gas pressure in the pipe, which is a fairly common phenomenon in centralized systems gas heating. Therefore, turning off the gas and freezing does not threaten your radiators.

Thirdly, it is economy. In terms of energy costs, liquefied petroleum gas systems are inferior to gas boilers, but are superior to liquid fuel boilers. The advantages of this heating method also include very low level sulfur compounds and stability of inlet gas pressure. Therefore, boilers that run on liquefied gas are much more durable.

An autonomous gasification system using liquefied petroleum gas can also serve as a backup fuel for natural gas consumers during peak loads in the gas pipeline network or during an emergency shutdown of gas supply.

slgaz.com

Autonomous gas supply - how to make a system on your site? + Video

If you want to build a summer house, then you should definitely learn as much as possible about the autonomous gas supply of a country house. We will try to collect a comprehensive idea of ​​its advantages and disadvantages, and also consider the design and design nuances.

What it is?

Gas is the most popular and cheapest fuel used for heating private homes. It is not worth mentioning that this particular energy carrier is actively used for heating water, cooking, etc. Therefore, if you are going to build a country house, then gasification cannot be avoided. But what is independent gas supply? This option is used when it is not possible to connect to the central wire.

In the case of an autonomous system for a private house, a special tank filled with liquefied gas is buried in the ground, from where the fuel flows directly into the pipes. This design is also equipped with a special control system. As for the frequency of refueling, it is carried out as needed, usually it is required no more than twice a year. However, this indicator is influenced by a number of conditions, starting from the number and square footage of heated premises and ending with their purpose, because there is a difference whether you heat the house every day or only on weekends.

Advantages and disadvantages of autonomous gas supply

So, let's start, of course, with the advantages of such a system. Firstly, it is quite reliable and does not require any special care. So it is quite enough to simply carry out regular visual inspections for defects. Secondly, the equipment is capable of withstanding a huge temperature difference reaching almost 100 °C, namely from –45 to +50, so its use is relevant for a private home in absolutely any region, regardless of climatic conditions. In addition, it is completely independent of the central gas pipeline and, accordingly, the pressure in it.

The disadvantages include additional costs, because in this case you will need special equipment, the price of which is not small. You also need to constantly monitor the pressure in the system, otherwise you may be left without blue fuel at the most inopportune moment. And when choosing a place where the tank will be located, you need to make sure that transport can freely approach it, otherwise it will be very difficult to fill it. And of course, there can be no talk of any amateur activity in terms of installation or repair, because even a child knows that gas is a rather dangerous substance that can not only cause poisoning of the body, but also provoke a powerful explosion.

The system and its features

So, as already mentioned, autonomous gasification is independent of the central wire, and the fuel in this case is located in a special container located underground at a depth of at least 1.5 meters. This tank is also called a gas tank. From it, respectively, through the pipes the substance enters directly into the house. One of the main parameters is productivity, that is, the amount of gaseous fuel produced from liquefied gas. Naturally, the more it is, the better.

In some cases, several houses are connected to the system, and then, of course, its performance is not enough - to increase it, a special evaporator is installed.

It should also be noted that the factors influencing the amount of fuel obtained are the temperature and surface area of ​​the liquefied gas. That is why the gas tank is buried at least one and a half meters into the ground, because at such a depth there is no risk of soil freezing, and the temperature remains approximately the same level all year round. That is, there is only one way to regulate productivity, and to increase it, you should choose a wider tank.

Choosing a gas tank

As you can see, this barrel is one of the main elements of an autonomous gas supply system for a private home, and we simply have no right to be negligent about its quality. They come from different manufacturers, usually Polish, domestic, Italian and Czech. Of course, their cost will be slightly different. There are also ground-based options, mostly of Czech origin. Their cost is somewhat inflated, but in this case you will avoid excavation work, however, such equipment will not always be able to withstand harsh winters, and then additional heating will be necessary. In addition, if the quality of the metal is not good enough, then corrosion may occur, which threatens to provoke a powerful explosion.

Still gasholders are vertical or horizontal. It is better to give preference to the latter option, since in such tanks the pressure is distributed more evenly. Be sure to pay attention to the following parameters – volume, shape and material. Performance depends on the first two, and security depends on the latter. Naturally, it is better not to spare money, but to turn to professionals, they will do everything necessary calculations and installation. This way you can save time and, possibly, even money, because incorrect calculations can at least cost you additional material costs.

The procedure for gasification of a private house

Now it's time to get acquainted with the order of work. So, there are two ways to solve this problem. You can contact a private company that will take care of all issues regarding registration and collection of the necessary documentation. Of course, the services of such offices are not free. You can do this on your own. If you choose the second option, then you should go to the local regional gas agency, taking with you your passport, documents for land plot, as well as the technical characteristics of the heating system, and write a corresponding statement. After you visit a specialist involved in the development of specifications.

When designing an autonomous gas supply for a private home, you need to comply with some requirements. For example, the container in which liquefied gas is stored must be located at a certain distance from various structures. The distance is observed as follows:

• to the fence at least 2 meters;
• more than 10 m is set aside from residential buildings, and 5 m is enough from trees and non-residential premises;
• the distance to wells, hatches, as well as wells should be at least 15 m.

Specialists also study the properties of the soil and compile specifications in accordance with its indicators. After, having written another application and collected a number of documents (technical characteristics of the evaporator and tank, site plan, external gas pipeline and, of course, the conclusion of previous specialists), you should contact the company engaged in gasification design. Of course, this organization must have the appropriate license. As a result, after registering with a specialized office, you will receive permission to carry out further work.

Only after this paperwork can you begin to install the tank and connect it directly to the gas pipeline of a private house. Moreover, this stage should be carried out only by highly qualified specialists. The only thing you can do yourself is excavation work, thereby saving some money, but wasting time.

remoskop.ru

How autonomous gasification works | How it's done

Not all settlements are connected to the "benefits of civilization". Even new cottage communities and private houses built near the city limits are often left without a central heating system. There is no corresponding project in the general plan, it is unprofitable to install gas there or it is too expensive to do it - there can be many reasons, but people still need heating. There are several ways to provide your home with heat, and one of them is an autonomous gas supply system.

Autonomous gasification has long been actively used in Europe - not only for heating private houses, but also for industrial buildings. After the cottage construction boom began in Russia, autonomous gas supply began to be actively used in our country.

The system’s operation scheme is quite simple: in accordance with design standards, a container (gas tank) with a volume of 1,750 to 10,000 liters is buried next to the house or any other object. Only the neck of the tank remains on the surface.

The capacity of the gas tank depends on the expected needs. Designers calculate the loads of the boiler house for heating the house, heating hot water and cooking. If it is planned to gasify several houses at once, then, accordingly, the calculation goes to all objects.

A gas pipeline is laid from the neck of the tank, and branches are already being made from it to the boiler room and to the kitchen. The gas pipeline is laid at a depth of at least one and a half meters, in a trench with a sand cushion. Special transport fills the gas tank with liquefied hydrocarbon gas (LHG). The liquefied fuel then turns into a gaseous state. The gas passes through special regulators and at reduced pressure (30-50 millibars) goes through the gas pipeline to the boiler room.

LPG is a universal synthetic gas, also known as liquefied petroleum gas propane-butane. It is obtained from oil refining. LPG is considered the most suitable and environmentally friendly fuel for boilers. It contains few sulfur compounds, and therefore gas combustion occurs with more efficient and without the release of odors. In addition, when using LPG, expensive boilers are much less susceptible to corrosion.

A separate plus of autonomous systems running on LPG is that they can be used even in places remote from main gas pipelines. Because the refueling of the tank is carried out with the help of special transport, which can literally reach anywhere.

Where natural gas is not supplied, LPG will be the most economical profitable fuel. Compared to diesel fuel or electricity, the benefit can be up to double.

And of course, the most important question is how safe is the autonomous gasification system? Answer: so much so that it is considered one of the most reliable heating methods. If the system is installed by specialists, it will last at least 20-30 years. And serious problems can only be caused as a result of targeted intervention. It goes without saying that the installation and maintenance of an autonomous gas supply system can only be trusted by those organizations that have the appropriate licenses. It is also worth giving preference to those companies that provide a “full cycle” of services: design, installation and production of fuel storage facilities.

Depending on the specific facility, as well as on the number of houses that need gas, various schemes and sets of equipment are used. All this is developed by heating company engineers. Autonomous gas supply can easily cope with tasks such as heating a restaurant, car service center, warehouse or mini-village.

Now you know how an autonomous gas supply system works.

The article uses materials from the website www.gazovoz.com

kak-eto-sdelano.ru

Autonomous gasification: pros and cons

Before you carry out autonomous gasification of your home or other facility, you should carefully study all the advantages and disadvantages of such heating.

The disadvantages of autonomous gas supply include the following:

• the need to constantly monitor the condition of the gas tank for possible gas leaks, as well as the obligation to monitor the remaining gas in order to avoid negative consequences;
• the likelihood of a malfunction of the gearbox, into which water can get in, which will disable the entire autonomous heating system. However, such problems can be prevented by choosing a gas tank more carefully. The modern choice of such equipment requires a thorough study of all the characteristics of the offered products and correlating them with the expected operating conditions, starting from the type of soil and ending with the features of the gas-consuming installation;
• a narrow circle of gas suppliers, which puts those who want to have autonomous gas heating in a dependent position;
• the high cost of autonomous gasification measures, which involve the purchase of expensive equipment and payment for equally costly work and services. Therefore, initially you should think through everything carefully and evaluate the cost of installing an autonomous heating system. In this case, all work on the assembly and adjustment of the system must be carried out by appropriate specialists. About how to independently establish gas supply in your home, and there can be no question! Think about safety!

The advantages of autonomous gas heating are:

• saving. Heat energy obtained from autonomous gas supply is cheaper than electrical energy, as well as energy generated by burning diesel fuel. Thus, the cost of autonomous gasification is gradually paid off by reducing heating costs;
• freedom from main supply systems. There are no gas pressure drops in the system, and cases of unexpected shutdown;
• Efficiency of design work and installation of a gas tank in relation to the time of connection to the main gas supply network. If desired, the tank can be installed in one day, and the whole process takes 3-4 days;
• independence of the possibility of installing a gas tank from the location of the gasified facility;
• environmental friendliness. The burned gas contains almost no hazardous substances, and the tank with it is installed at a reliable distance from the object;
• a wide range of applications of liquefied gas, with which you can not only heat a house, but also supply it with electricity (naturally, by installing additional equipment), as well as cook food;
• individual project depending on your wishes;
• cost-effectiveness of servicing an autonomous gas heating system, the use of which for a long time does not require the additional involvement of specialists. A system installed by professionals and assembled from high-quality high-tech equipment can operate for more than two decades;
• increased service life of associated equipment involved in the operation of the autonomous gas supply system;
• system flexibility. There is no need to coordinate the installation of additional equipment;
• increased environmental friendliness. LPG completely evaporates during combustion and does not emit harmful substances.

Gas / Gasification in the Moscow region

The Moscow region authorities promise to speed up the gasification of populated areas in the region. Acting Governor of the Moscow Region Andrei Vorobyov said that by the spring of this year a new program will be adopted, which will indicate addresses and specific deadlines for gasification. Its implementation will allow us to achieve in a short time gas pipe right down to the inner village streets.

However, at the finish line, when the long-awaited gas pipeline passes next to the household, residents of the Moscow region will be faced with the need to solve a standard problem - bringing gas into the house. For most of us, this is the first experience of gasification, and we approach its solution unprepared, with many questions: “How to connect to the pipe, who to contact, how much will it cost?”

The Moscow Region correspondent conducted his own research into what steps need to be taken before the “blue light” lights up in your kitchen, as well as who is the best and safest person to contact to carry out the work.

Gasification in the Moscow region: an example of fraud

Unfortunately, no one is immune from deception, even highly educated and famous people often fall for the tricks of scammers. So, in one of the elite cottage villages, the client decided to install gas to his house. There was no need to pull the pipe from afar; it was already running next to the site. An agreement for gas connection was signed with one of the many companies found on the Internet. The contractor took on all the work and all the worries, which is called “turnkey”, for which he asked for a lot of money.

After thinking, the applicant agreed and made an advance payment of 25% of the agreed amount. For this money, he had the gas pipeline completely installed, after which he was offered to pay the remaining amount, promising that the gas would be launched in the near future. When the customer asked to show the agreed project, and then the rest of the documents, the answer was that this was not necessary, the gas would be released anyway. After this, the applicant, having doubts about the integrity of the contractor, decided to contact the operating organization - Mosoblgaz.

There, they heard nothing about the company that carried out the work; no one approached the gas workers with the project. As a result, the money paid in advance was lost, since the already installed equipment cannot be used without documents, properly and timely executed acts.

In the above case, we can say that everything turned out to be a “little loss”, largely due to the fact that the customer realized it in time. But it can be worse, and therefore, before you trust anyone, you need to carefully prepare: carefully study the gasification procedure, market participants and approximate prices for the work.

Gasification procedure: technical conditions and design

The procedure for connecting to gas supply consists of several stages. It all starts with obtaining technical conditions that clearly state what will serve as the source of gas supply, be it one house or a collective development. It also indicates what gas-using equipment is installed and other special conditions.

It is important that the procedure for obtaining technical specifications is free. Unfortunately, unscrupulous contractors manage to charge their own tariff for this service in the estimate,” explains Dmitry Yuryev, director of the branch of the State Unitary Enterprise MO Mosoblgaz.

After receiving the technical specifications, you need to make a gasification project. It can be ordered either from Mosoblgaz itself or from any other contractor. The cost of such a project may vary depending on its complexity, as well as on the pricing policies of various companies operating in this market.

Next, the project must be agreed upon and registered with Mosoblgaz. Please note that the coordination of projects in the Moscow region is carried out exclusively at the Mosoblgaz State Unitary Enterprise. Approval is paid, but registration is not, although the same intermediaries can take advantage of residents’ ignorance and charge their own price for it.

Gasification: how to build a gas pipeline and bring gas into the house

The next stage is obtaining permission to build a gas pipeline from local authorities, if required. For example, you will need to get the go-ahead if you have to lay a pipe to a populated area or site several kilometers away. Mosoblgaz does not resolve such issues, and various intermediaries are actively working here who are ready to “settle” the problem if it arises.

After obtaining permission, a contractor is hired to carry out construction and installation work, who will physically install a gas pipeline to the house, make internal wiring, and also supply all the necessary equipment - a meter, a gas detector, a chimney. As a rule, one contractor is hired for both the project, the permit, and the laying of pipes, as this is easier than dealing with several firms, each of which may have its own idea of ​​how exactly the work should be done on each of them. stages.

During construction and installation work, it is important to have all properly executed permits, otherwise all the work performed, as in the above case, will be a waste of money and time. In addition, all equipment used requires appropriate documents.

Any part that makes up a gas pipeline, be it a pipe, a basement inlet, a meter, a gas alarm, all taps, must have a product passport. All this is then put into a folder when you prepare the executive and technical documentation. You present it when you hand over the property to us,” says Dmitry Yuryev.

When, as they say, “the pipe has fallen on the pipe,” that is, the gas pipeline has been installed, it must be handed over to the regional operational service of Mosoblgaz. In addition to technical documentation, she checks the pressure in the gas pipeline and carries out pressure testing. This is necessary to ensure that the gas pipeline is safe before connecting. This procedure is free.

Next comes the delivery of the gas pipeline, which is also free, although many contractors charge money for this. Then comes the sidebar. This stage requires costs, but again not as much as some companies can imagine. And the last thing is the gas start-up, after which the gasification process is completed.

Mosobolgaz: list of bona fide gasification companies

Mosoblgaz notes: we are ready to implement the entire project on our own. But if the customer has decided to turn not to Mosoblgaz, but to other contractors, then it will be useful to at least find out what the life history of the selected company is, what SRO it belongs to, whether it is on the list of scammers, and if not, then clarify whether it has performed such work earlier. Then the likelihood of falling for scammers will be much less.

In connection with the increasing cases of fraud on the part of unscrupulous contractors performing work on gasification of private consumers in the Moscow region, the State Unitary Enterprise MO "Mosoblgaz" posted on its website information about organizations united in the non-profit partnership SRO "Association of Builders of the Moscow Region" that have a certificate of admission to certain types of work.

Go to the list of companies engaged in gasification in the Moscow region and approved by Mosbolgaz.

Mosobolgaz also offers consultation on gasification issues in the Moscow region

Mosoblgaz: “If you have doubts about decisions made within the framework of gasification, you can always seek free professional advice from the State Unitary Enterprise MO Mosoblgaz through:

• helpline: +7 (495) 597 55 69 (24 hours a day);
• [email protected](round the clock);
• pre-registration and meetings with the heads of branches, the management of the State Unitary Enterprise MO "Mosoblgaz" (weekly)."