To system autonomous water supply could work, just drill a well (as an option - dig a well) and lower the pump there. It must have a device that provides constant pressure and storage of a supply of water.
This could be, for example, a water tower. But - this is a very complex and expensive structure, which, moreover, takes up space on the site. An alternative to it is a membrane accumulator.
Generally speaking, a water tower simplest form hydraulic accumulator, which provides the pressure level depending on the height of the liquid rise.
It performs three important functions, without which the operation of the water supply system is impossible.
- Maintains constant pressure in system.
- It is a reservoir of water.
- Protects the system from water hammer, acting as a buffer between the lines and the lifting pump.
There is a fourth function, in which the supplier is more interested than the consumer. This is a reduction in the operating time of the pump and the number of its inclusions, which not only increases the time of its trouble-free operation, but also saves energy.
For a private trader who owns his own source of water, it is no less important than the first three.
For all its apparent simplicity, a water tower is a very complex and material-intensive structure, taking up part of the usable area suburban area. Therefore, compact membrane devices are more often used in individual water supply systems.
Diaphragm accumulator device
The pressure in it is created not by raising the liquid to a certain height, but by using its incompressibility property. To do this, a rubber pear is placed in a metal tank, something like a large syringe.
It is filled with water, and air or nitrogen is pumped into the tank.. An elastic membrane made of butyl rubber takes this pressure and transfers it to the liquid inside it.
Since water is an incompressible substance, the pressure created by air or nitrogen in the accumulator is transferred to the entire system. If a pump with a high working pressure is connected to it, then the elastic membrane inside the tank will compensate for it, preventing hydrodynamic shock.
The amount of water pumped into the accumulator can be significant. Therefore, when the water supply is interrupted, it begins to play the role of a supply tank. The pressure in the system in this case gradually decreases.
Types of membrane accumulators
The main difference is in the location of the nozzle. connecting this device to the entire system. Therefore, they can only be of two types:
- vertical;
- Horizontal.
The vertical branch pipe is usually supplied from below. This type of device has the only advantage over horizontal models - it can provide a larger amount of one-time flow. This happens due to the fact that the upper part of the elastic membrane, when it is drained under the influence of gravity, falls below the axis of the horizontal pipe and overlaps it.
Horizontal hydraulic accumulators are manufactured, for example, Russian company Unipump. The 50 liter model is the minimum size for a small water supply system. country house- costs from 7 thousand rubles.
Vertical from the company "Dzhileks" (also Russian manufacturer) of the same volume is much cheaper - from 3.5 thousand rubles. The price is affected by the material of manufacture (expensive Unipump is made of of stainless steel), as well as the flange material for connecting the line - it can be either plastic or metal.
note that expansion tanks for a cold water supply system are usually painted blue, and those connected to lines with hot water- red. The membranes in them can be both replaceable and non-removable.
How to choose
The main selection criterion is volume. There are formulas for its calculation, but they are all complex, and the calculation results are approximate, since they are based on the average water consumption, taken almost from the ceiling.
You can try to get by with ready-made calculations, and go from the opposite - assuming that the amount of water consumed is equal to the volume of sewage. In the book by V.M. Masyutin "Modern Manor House" it is determined for a family of four in the quantities indicated in the table.
Now, for calculations, it is necessary to find a compromise between the desired water supply and the number of pump starts during the day.
This will help the table, which indicates the one-time water flow, after which the pump turns on.
For example, let's take a one-story "hacienda" in which four people live, and they use water for washing, washing dishes and washing. Water is supplied by a submersible pump "Aquarius 0.5-16 U".
The pressure in the water supply system is standard - 1.3 bar, the pressure switch is set to turn on the pump with a head of 1.5 and turn off at a pressure of 2.5 bar. If you choose a hydraulic accumulator with volumes of 100 liters - half the daily rate of water consumption, then let's say a one-time consumption of 26.3 liters.
After this limit is reached, the pump is turned on.. Considering that almost 30 liters are not always consumed at a time, and the performance of the specified pump is almost two tons of water per hour (1.8 m 3), the pumping device will turn on no more than three or four times a day.
The larger tank volume, equal to two hundred liters - the full daily intake, will allow you to spend almost 53 liters at a time without turning on the pump, which seems excessive if there is no need to water the garden, and barely enough if there is such a need.
In the above calculation example, there is a special parameter - the pressure in the system, on which the choice of the pump model directly depends and indirectly - the volume of the accumulator.
Determining what it should be is very simple: every 10 meters of water column is one atmosphere or bar. In the plumbing system of a one-story building, a pressure of 1 bar is enough, and in a two-story building it must be at least one and a half bar, otherwise water will barely ooze from the tap on the second floor.
Considering that the pump pressure must be higher than in the system, 0.2–0.5 bar less is pumped into the accumulator. And the more floors in the building, the larger the volume of the accumulator is required so that the pump is not in a permanent “stop-start” mode.
How to connect
To connect this device, a minimum set of plumbing tools and Supplies- an adjustable wrench and a FUM sealing tape. But without one detail, this cannot be done, under any circumstances. It's called a 5-pin fitting. These pins are needed to connect:
- Hydraulic accumulator;
- Pump supply line;
- pressure gauge.
- Pressure switch (pump start);
- The inlet pipe of the water main.
Hydraulic accumulator maintenance
This is a device that is constantly under pressure and experiencing dynamic loads. Therefore, it is always necessary to monitor it, in much the same way as the condition of car tires - before each trip.
Visual inspections for leaks alternate with pressure measurements in the chamber. To do this, at the end opposite the inlet pipe, the cover is removed, under which there is a spool. Air or nitrogen is pumped through it. The pressure is measured with a car pressure gauge.
clear sign device malfunctions - a constant decrease in the number of downloaded atmospheres. Most likely, the integrity of the rubber diaphragm is broken, and air enters the system.
How to replace the battery membrane:
Conclusion
A hydraulic accumulator is a very simple device in its essence, but the performance of the local water supply system and the comfort of living in the house directly depend on its serviceability and the correct selection of the model.
In the modern system engineering communications private house water supply is one of the mandatory systems, the connection of which requires a set necessary elements without fail. For the water supply of a private house, which requires the installation of a water supply system that meets the standards water supply network, a storage tank or a hydraulic accumulator is an obligatory element.
In fact, this is one of the main elements of the system, without which the operation of water supply from an individual source with a complete imitation of the functions of a centralized water supply system is impossible.
Hydraulic accumulator of the water supply system - main functions
A storage tank for water supply or in another way a hydraulic accumulator is a container that can withstand high pressure. The accumulation of water in the accumulator occurs due to the presence of an elastic membrane container inside, in which a certain amount of water is accumulated. A feature of a membrane tank for water supply is that there is air or pumped nitrogen between the membrane and the walls of the tank, such a gas space allows it to compress when the membrane is filled with water, creating pressure. The gas pressure, when the membrane expands with water inside the tank, is the main feature for which a hydraulic accumulator is needed.In the water supply system of a private house from an individual source of water supply, either a well or a well, it is carried out using a pump that not only raises water to the height of the horizon of the earth's surface, but also creates an excess pressure that, when opened, faucet get a stable water pressure. At the same time, the pump motor is not designed for continuous operation in the water supply mode; it has a short-term operation mode necessary to maintain a constant water pressure in the water supply system. The pump is turned on and off by the control unit, which reacts to changes in the pressure in the water supply. And when the pump is turned off, the function of maintaining the pressure inside the system passes to the storage tank for water supply. The water pumped into the membrane chamber of the tank compresses the air of the accumulator and, thus, creates pressure in the water supply system.
When opening a faucet or any other connection point household appliances, For example, washing machine under the action of air compressed in the storage tank for the water supply system, pressurized water enters the system, and thus simulates the operation of the water supply system, which is why a hydraulic accumulator is needed. Over time, when the air pressure gradually drops, and the volume of water inside the membrane chamber decreases, the automation unit turns on and the pressure in the system begins to be maintained by supplying water from the pump.
Types of storage tanks
Membrane tanks for water supply are selected in each case according to individual conditions project. More often membrane tank sold complete with a pump and an automation unit, such pumping stations are installed in private homes or facilities that do not require large volumes of water.
Individual conditions for the use of the water supply system allow you to select stations according to the power of the electric motor and the volume of the storage tanks, depending on the installation conditions. The depth of the water horizon, the thickness of the aquifer significantly affect the choice of not only characteristics pumping station by power electric pump, but also by the volume of the tank for the water supply system.
In many ways, what a hydraulic accumulator is for depends on its qualitative characteristics - first of all, the volume of the tank itself. The larger the tank, the more time the water supply system will work without connecting the electric pump. For example, to wash dishes for a family of 3, an average of 25 liters of water is required for hand washing and 6-10 liters for machine washing. Thus, a storage tank with a volume of 40 liters will quite cope with this task, and the electric motor will be turned on only 3-4 times for 7-10 seconds. For a tank with a volume of 50 liters, the pump will work even less, it will be turned on only 1-2 times.
For standard pumping stations, the expansion tank is available in basic sizes of 30, 40, 50 liters. Such volumes are quite enough to accumulate the required amount of water, however, for such pumping stations, it is possible to change the design by installing storage tank other volume.
An increase in the volume of the storage tank in such cases is associated with the need to:
- reserving enough water;
- increase in battery life from the reservoir due to the deep horizon of water occurrence;
- reducing the load on the pumping group of the station.
Vertical tanks are designed for volumes from 50 liters. Most often, such volumetric reserve tanks are used in industrial purposes or objects requiring large amounts of water. A feature of such structures is the presence of 3 or 4 legs in the lower part. In vertical tanks, water is supplied from the bottom at the location of the tank cover.
Features of the operation of the accumulator
Considering the device and why you need a hydraulic accumulator in the water supply system of a private house, you need to understand the features of its work. And here it is imperative to mention the second chamber of the storage tank, where the air is located. As you know, unlike water, air can be compressed, and the compression process is accompanied by an increase in pressure in the air chamber. For normal operation of the expansion tank with a completely filled water chamber, the pressure of the air chamber can reach 2 or more atmospheres. But when the hydraulic tank is empty and there is no water inside it, then the usual pressure in it is only 1.5 atmospheres, this pressure is quite enough to ensure the operation of all home devices in a private house. Initially, such air pressure inside the accumulator is pumped in during the production of the hydraulic tank, but the pressure value is checked using a conventional automobile pressure gauge, with a fine division scale. For all expansion tanks, except for the inlet for a threaded connection, with reverse side(For horizontal options design) there is a valve assembly for pumping and bleeding air or gas. In terms of size and, in fact, this is the most common spool valve of an automobile or bicycle tire. This device makes it easy to download required amount air using a conventional car pump.
For vertical models of hydraulic tanks, unlike horizontal types, the valve is located at the top of the device. Another valve is also located there, it is designed to bleed the air accumulating in the membrane chamber; such operations must be carried out periodically due to the constant release of air from the water. Too much a large number of air in the membrane chamber does not make it possible to completely fill the volume with water.
For horizontal tanks with a small volume, the membrane chamber descent air cushion is carried out not as often as in vertical tanks, this is due to the small volume of the membrane chamber and the rapid renewal of water in it when the pump is running.
In a water supply system in which a hydraulic accumulator is included, in contrast to a direct-flow system directly connected to a water supply source, the danger of such a phenomenon as water hammer is practically reduced to zero. This is another aspect of why a hydraulic accumulator is needed. When the pump is turned on directly, the pressure in the pipeline rises sharply, while the pressure reaches its highest value almost immediately at all points. Under such conditions, do smooth transition from the highest value to the optimal limits, or vice versa, it is simply impossible to gradually raise from the minimum value to the required indicator. In a system in which a hydraulic accumulator is included, it is possible to remove peak values, thanks to the expansion chamber of the hydraulic tank. Having an elastic shape, the membrane is capable of optimal timing increase volume and ensure smoothing of peak loads on pipes and threaded connections fittings.
During operation, in the event of breakdowns, the membrane and the body of the tank itself most often fail in the hydraulic tank. The membrane is characterized by a violation of the integrity and tightness of the surface due to chemical composition water and affects the aging process of the membrane material itself. In this case, the repair is carried out by replacing the membrane with a new one. But for the tank, or rather, for the metal case, most often problems arise due to manufacturing defects and damage to the case. In both cases, the tank can be restored by soldering or welding. But, in the case when the damage is multiple or has a large area, it is recommended not to repair the restoration, but to replace the tank with a new one.
and water supply is not complete without the installation of a hydraulic accumulator.
Many people call it an expansion tank in the old fashioned way and think that it is only needed to add water to the system.
Actually it is not. To understand why a hydraulic accumulator is needed, it is necessary to study it thoroughly.
To find out what a hydraulic accumulator is, you must first consider its device, and it is quite simple.
A rubber chamber is hidden behind the iron case - a pear designed to accumulate water.
Air is pumped under pressure between the body and the pear - 1.5–2 atmospheres.
It is necessary to prevent the rise high pressure capable of breaking the pipeline.
And the answer to the question of why a hydraulic accumulator is needed in a hot water supply system is precisely of blue color, remains the same because its pear is made of food-grade rubber.
Main characteristics of drives
Each equipment has its own, according to which the consumer selects it for certain jobs. Storage tanks have two main parameters that you need to pay attention to when choosing:
- The maximum working pressure indicator indicates how much the container can withstand. Accumulators for water supply are produced with the expectation of great pressure from 6 to 10 atmospheres. Expansion tanks for heating can withstand up to 5 atmospheres. There are drives designed for more pressure, but they are designed for production and are made to order.
- When determining, you need to know that the manufacturer indicates the indicator of the metal outer case, and not the membrane itself. Although in fact the amount of water received with a capacity is much less than indicated and can be equal to half. It depends on the pressure difference between the water itself in the membrane and the air injected between it and the walls of the tank.
It would be useful to know the air pressure. The operating value will be indicated in the product instructions. But you can measure it yourself.
Each body has a spool closed with a plastic cap. Having unscrewed it, the pressure is measured with a car pressure gauge.
If it is less than specified, air is pumped with a conventional pump. In case of excess, press the spool pin to bleed excess air.
Causes of breakdowns and methods for their elimination
Storage capacity breakdowns can be very different. If this is not due to the failure of the pump motor in the water supply system, then common malfunctions are expressed by low water pressure or frequent pumping.
The following recommendations will help you identify the problem and fix it:
- Spontaneous switching on of pumping with all taps closed indicates a leak from the water system. In stations, this usually occurs due to a breakdown of the intake pipe valve located inside the well. The hydraulic tank membrane will bleed water through a broken valve into the well, which is accompanied by a decrease in pressure and frequent pumping of the pump. You can fix the problem by replacing the valve or cleaning its seat from dirt accumulation.
- If the pump immediately turns on when the tap is opened, then inside the tank weak pressure air or a ruptured membrane. This is easy to find out by removing the protective cap from the spool and checking the pressure with a pressure gauge. The procedure is done with the pump power off and the water pressure bled off. If, when pressed with a pressure gauge, water came out of the spool, it means that the membrane has burst and must be replaced. In case of insufficient pressure, air is pumped with an automobile pump to those indicated in the instructions.
- A big difference turning the pump on and off indicates an incorrect adjustment of the relay. It can be adjusted independently by setting the desired limits. This is done with two nuts hidden behind the plastic housing of the relay. A nut with a large spring is responsible for the water pressure and turning on the pump. A nut with a small spring regulates the pressure difference.
Repair - replacement pear
Well, the visible cause of the breakdown may be damage to the metal case.
It can be fixed at a service center, although sometimes it's better to buy a new one.
The design of the accumulator is simple.
If you understand the device and the principle of operation, almost all maintenance can be done.
The good-natured plumber tells about how the accumulator works in the video:
Noticed an error? Select it and click Ctrl+Enter to let us know.
It is an integral part modern systems automatic water supply for a private house, cottage or dacha. There are many types and configurations of cold water expansion tanks on the market.
Today we will analyze in detail the device and principle of operation of the accumulator, its main purpose, installation rules and possible faults at work. And also we will try to understand the principle of operation, and how to choose the right accumulator for our pumping system.
Main types and features
Hydraulic accumulators for water supply systems differ in layout:
— horizontal
- vertical
By volume or capacity:
- standard household: 24-50 liters
– medium capacity: 80-100 liters
– large capacity: 150 liters and more
According to the body material:
- enameled steel
- stainless steel
Horizontal accumulator for pumping station
The body of a steel accumulator is usually painted with blue or green enamel. Red expansion tanks are more often designed for heating systems.
Application area
Hydraulic accumulators are designed for:
– accumulation of water and maintenance of its automatic supply to the point of draw-off
- increase the service life of the pump, removing the load on it when it is turned on privately
– prevention of possible water hammer in the water supply system
The device and principle of operation of the accumulator
A typical hydraulic accumulator consists of the following elements (see diagram below):
1 - threaded fitting for connection to the water supply system, its diameter is usually 25 mm or 1 inch
2 - sealing flanges
3 - the capacity itself of different volumes
4 - rubber membrane for water
5 - pneumatic valve for air injection and discharge
6 - mounting platform for installing a surface pump on it
(for horizontal version)
7 - legs for structural stability
Hydraulic tank device
The principle of operation of the hydraulic accumulator is based on automatic feeding water from the tank to the consumer without turning on the pump. This is due to the fact that when the water tap is opened, the air pumped into the tank begins to squeeze water out of the membrane under pressure.
The required pressure in the tank should be 1.5-2 atmospheres. As the water is consumed by the consumer, after the tap is closed, the hydraulic accumulator is automatically filled with water again throughout the entire volume.
How to choose a hydraulic accumulator for a pump
If you plan to buy and don’t know how much tank to choose, or you already have a surface pump, but you plan to purchase a hydraulic accumulator for it, then the following is recommended:
- for a pump with a power of up to 1000 W, a tank with a capacity of 24 liters is suitable
- for a pump with a power of more than 1000 W, it is better to buy a tank with a volume of 50 liters
If you purchase a hydraulic accumulator for, then it is recommended for pumps with a capacity of:
- up to 500 W install a tank with a volume of 24 liters
- up to 1000 W, 50 liters will do
– up to 1500 W – 80 or 100 liters
Due to the nature of its design, submersible pumps turn on and off less often than surface ones. Therefore, for them it is necessary to install somewhat larger hydraulic accumulators.
In practice, expansion tanks with a volume of 24-50 liters are able to fully meet the need for domestic water for a small family, for one or two draw points. If the family is large, you can buy a larger capacity hydraulic tank. For example, a tank with a volume of 80-100 liters should be enough for three or four points of water intake: kitchen, bathroom, shower and toilet.
Vertical accumulators
Hydraulic Tank Installation Recommendations
1. Install the accumulator only in a heated room.
2. Be sure to flush the water system first before starting.
3. Check if air is pumped into the tank under sufficient pressure.
If not, then download up to 2 atm. independently through the air valve. This procedure can be done, for example, with a conventional bicycle or car pump.
Problems in operation and methods for their elimination
1. Insufficient air pressure.
Blow out the pneumatic valve and pump air with a pump.
2. Lack of pressurized air in the accumulator tank.
Either the valve or diaphragm will need to be replaced.
3. Water is flowing from the valve.
The membrane needs to be replaced. Let's watch the video.
Hydraulic accumulator for water supply systems- this is an indispensable attribute of a modern country private house or cottage. I hope now you understand its principle of operation and design features. And now you can easily choose a hydraulic accumulator for your conditions, as well as install it correctly, and avoid mistakes when starting the water supply system.
The hydraulic accumulator is a special element of industrial and household systems heating and water supply. Its installation is dictated by the need to stabilize overpressure by taking on a certain volume of liquid. Why is it customary to install hydraulic tanks for water supply systems?
This issue should be considered in more detail:
- Firstly, it is the need to accumulate and maintain a certain volume of fluid;
- Secondly, when accumulating liquid, it is possible to neutralize excess pressure;
- Thirdly, this will reduce water hammer, which is often present in central water supply systems;
- Fourth, even when the pump is off, the accumulator makes it possible to maintain a certain pressure in the system;
- Fifthly, the accumulator prolongs the life of the pump, which has to turn on much less often;
- Sixth, the hydraulic accumulator smooths out water shortages during peak water consumption.
The accumulator is otherwise called "Expansomat", but the name expansion tank has become more widespread.
For a clearer and more accurate understanding of the purpose and location of the hydraulic tank in the plumbing system, one should recall the design and purpose of well-known water towers. Their main purpose is to accumulate a supply of water and create pressure in the system, which is colloquially referred to as pressure. The design of the water tower and its location did not imply compensation for water hammer and smoothing out excessive pressure.
However, the similarity of a hydraulic accumulator with a water tower is that both devices provide an improvement in the operation of the plumbing system, and in the first case this occurs due to the use of the potential energy of compressed air, and in the second - as a result of the action of the potential energy of the raised water.
Color
Hydraulic accumulators are used not only in plumbing, but also in heating systems. It is worth considering that the vast majority of manufacturers label hydroaccumulators in color, while blue ones are for water supply systems, and red ones are for heat supply systems. Sometimes there are also colorless devices, in any case, to eliminate doubts, you should get acquainted with the technical documentation.
The difference between blue and red accumulators is as follows:
- The device of blue hydraulic tanks allows you to independently replace the membrane. They use food grade rubber.
- In red tanks self-replacement membranes is not always possible. They use technical rubber.
Device
A hydraulic accumulator is a container in which water, a pear or a membrane is accumulated, as well as a filter, usually located inside. In addition, it is equipped various systems input-output, pipes and valves, as well as devices and structures that ensure the stable operation of the water supply system from the outside. According to the type of construction, accumulators can be classified into those equipped with a rubber pear or membrane, which are located inside the device.
The shape of the membrane is similar to the outer shape of the tank, while the membrane reliably delimits the air outside and the water inside. A filter is installed at the bottom of the tank at the water inlet, and a spool is placed in the upper part - an air inlet. In some cases, water can be entered from above.
Hydraulic tanks with a pear have a similar device, however, in some models, water can be connected from the side, in which case the design has a horizontal arrangement. In this case, the pear can be attached both from two sides of opposite sides, and to one wall.
Ecological cleanliness
There is a lot of controversy regarding the difference in the quality of water that passes through a rubber pear or membrane. Many are inclined to believe that water in contact with natural material rubber pear, is more environmentally friendly. However, among experts there are statements that pears and membranes are made from quality materials, which do not affect the composition and ecological purity of water.
How to choose
Most simple solution it is considered the purchase of a 24-liter accumulator and its installation as close as possible to the pump - in this case, the stability of the system is guaranteed. At high level the water consumption of such a tank, of course, will not be enough, therefore, in order to correctly determine the volume, it will not be superfluous to do simple calculations.
There are several criteria to consider when performing calculations:
- Pump on-off frequency. It is considered optimal to turn on the pump no more than 1 time in 2 minutes. You should start by determining the pump performance, which should be indicated in the device passport. Usually, this figure is 40l / min. The space in the tank is divided in half - in the lower part there is water, and in the upper part - air. Based on this, we can conclude that you will need a hydraulic accumulator with a volume of up to 100 liters.
- Peak water demand. Max Flow water for the shower - 10 l / min., for the toilet - 6 l / min., for the kitchen - 8 l / min. In total, 24 liters per minute are obtained. Bearing in mind that in the accumulator half of the volume is diverted under water, we can conclude that a 100-liter tank will be quite enough to resolve the issue.
Note. If there is a desire to resort to more accurate calculations, then you should use UNI - the international calculation method. To complete it, you will need to fill out several tables and deal with the presented formula.
The decision regarding the reserve of water in case of a shutdown should be made subjectively, based only on your needs. If you focus on pressure, then you need to understand that its value must exceed the pressure in the water supply system.
The normal operation of the valve is ensured at a pressure of 0.5 bar, this pressure is ensured at a height water pipes 5 m or more. It is necessary that pressure is provided at a level not less than the sum of these two values. Usually, manufacturers guarantee a pressure of at least 1.5 bar, but this indicator must be checked at least once a year.
Installation in the water supply system
It would not be superfluous to focus on the fact that the installation of the hydraulic tank should be carried out taking into account the recommendations of the manufacturer. It is optimal if installation work will be entrusted to specialists. True, the owner of the house, in an effort to save money, always tries to do the work himself. There is nothing wrong with this, if “the hands are standing correctly”, then you should only follow the instructions, however, there are a number of points that you should pay especially close attention to:
- It is impossible to install a hydraulic tank, on the body of which there are damages;
- When performing installation work, one should take into account not only the weight of the tank itself, but also the volume of water that will be placed in it after installation;
- In some cases, it may be necessary to drain the water from the hydraulic tank, so this should be taken into account during installation;
- The accumulator should be installed in a heated room - freezing is not allowed;
- The conditions at the place of installation work must comply with the requirements put forward by the manufacturer;
- The body of the accumulator must be protected not only from the possibility of mechanical damage but also from exposure to moisture;
- Any elements of the accumulator, as well as the supply parts of the system, should not experience static loads;
- If you decide to install a hydraulic accumulator with a volume of 500 liters or more, then it will not be superfluous to determine in advance its dimensions and the possibility of delivery to the place of installation work.
Possible malfunctions and their elimination
In most cases, hydraulic tank malfunctions are fixable, and this is within the power of not only a specialist, but also the owner of the device.
So, frequent turning on of the pump can simultaneously signal several shortcomings:
- Lack of compressed air inside the device - the problem is eliminated by pumping air with a conventional car pump.
- Membrane damage. The membrane should be replaced, only the original product should be installed.
- Deficiency in the difference between the pressure at which the pump turns on and off. It is necessary to configure the parameters for turning the pump on and off by adjusting the pressure switch.
- Hull damage. This is perhaps the only problem that cannot be solved on its own. To restore the integrity of the case, you should seek the help of professionals.
- Leakage of water through the air valve indicates damage to the membrane. A membrane replacement is required, it is better to contact a service center, but if the issue is resolved on your own, then you should, as mentioned earlier, install the original membrane.
- Air pressure drop below design. Blow out the nipple or spool and pump air into the hydraulic tank.
Another common malfunction of the accumulator is the lack of pressure - a drop below the norm of water pressure, which occurs for the following reasons:
- Lack or complete absence of compressed air in the hydraulic tank. The problem is solved by a simple pumping of air.
- The pump is not able to create the necessary pressure. The pump must be checked to determine if there is a problem.
Price
The cost of accumulators can vary significantly. The price of the device is determined not only by the volume of the tank, but also by the brand. Also, the cost of devices in different regions of the country may vary slightly, depending on the amount of shipping costs. There are offers for the sale of Chinese 24-liter hydraulic accumulators at a price of $ 30, while on the network the cost of hydraulic tanks for water supply systems ranges from $ 28-200.
Results and conclusions
In the organization of the work of the water supply system, the pump is considered the main element. The quality of the water supply largely depends on its good condition and power. It should be noted that in the presence of a hydraulic accumulator, the pump ensures the pumping of water into it from a water supply system, a well or a well. To be more precise, the injection is performed, in fact, not into the tank, but into a pear or a membrane. The pumping of water into the hydraulic tank stops after reaching the set pressure mark.
When water is consumed, the pump resumes its operation after a signal from the pressure sensor. Based on this, we can conclude that the accumulator not only protects the pump from overloads, but also stabilizes the operation of the water supply system, helps to save energy.
The cost of the accumulator is quite acceptable, Maintenance and repairs are simple and affordable, and the volume and power are easily calculated.
