We remove air quickly and efficiently: silent duct fans for exhaust. Filter fans - why you should buy them Dust extraction fan

Official dealer and representative of the main Russian manufacturers of fans. Direct wholesale deliveries.

Are intended for work as a part of systems of ventilation of production and industrial rooms. Their main function is the removal of small particles and dust from the air, the suction of metal dust, the movement of welding slag and sawdust in the air stream, the selection of dusty air in the manufacture of cement and concrete products.

Along with high power and performance, dust fans are characterized by:

• ease of maintenance
• easy installation,
• reliable operation.

During operation, the fans generate a powerful air flow, the pressure of which is sufficient for efficient removal from the room of dust and the smallest particles. At the same time, the model range is quite large and allows you to choose ventilation equipment in absolute accordance with the most stringent or special requirements.

Dust fans are equipped with various electric motors, and equipment specifications may vary depending on the model. For example, the impellers have a speed range of 1450-2800 rpm, and the minimum power is from 1.2 (low-power dust fans) to 25 m3/h (the most powerful). The minimum power of the electric motor is 1.5 kW, the maximum is 2800 kW.

Russian dust radial (centrifugal) fans offered by our company meet domestic quality and reliability standards, which guarantees the best choice for specific operating conditions without extra costs. The cost of equipment is competitively low for this line of equipment.

Interchangeable fans VCP 6-46, VCP 7-40, VR 100-45, VRP-115-45

Dust fans VTsP 6-46 and VTsP 7-40 operate on one-sided suction and have a spiral swivel housing and two-way direction of rotation. The purpose of these devices is the movement of gas and dust-air non-aggressive mixtures without the content of sticky substances in the systems of dust-cleaning plants, ventilation and pneumatic transport, to eliminate wood and metal filings and dust from machine tools, etc. The main characteristics of medium pressure dust fans are high performance and power, reliability and ease of installation, operation and maintenance.

Dust fans of the BP 100-45 series are designed for transporting non-abrasive and non-explosive gas and dust-air mixtures up to 80°C, including mechanical solids and dust not more than 1 kg/m3, provided that there are no fibrous and sticky substances. The BP 100-45 fan is equipped with a split-type bearing unit, thanks to which it is possible to replace the bearings without removing the impeller. Dust fans of this series are designed to remove dusty air in the manufacture of reinforced concrete and cement, the movement of grain waste, wool and other products of production.

Dust fans VRP-115-45 - a series used for aspiration of dust and chips from machine tools, inclusion of cereals and grain in pneumatic transport systems, air conditioning in workshops, as well as for suction of dusty air masses at cement plants and for other industrial purposes.

Dust fans of domestic production

They are easy to install and high performance adapted to Russian conditions.

Scope of dust fans VR, VRP, VCP:

• removal of sawdust and shavings in the woodworking industry;
• removal of dust and slag from welding equipment;
• extraction of metal dust (aspiration) in industrial production;
• purification of dusty air in the production of cereal masses and pneumatic transport of grain and grain waste;
• selection of dust-polluted air in the production of cement and reinforced concrete products;
• replacement of VR, VRP, VCP fans. The interchangeability of dust fans of these series is important design feature attractive to the consumer.

Dust fans fully comply with Russian operating conditions in production and accepted quality standards. All models have certificates of conformity and are protected by manufacturer's warranties.

You can choose and buy fans of several series from us:

• BP - medium pressure;
• VRP - medium and low pressure;
• VCP - medium pressure.

All models of centrifugal dust fans are single inlet, with right and left hand rotation. Execution in two options: from carbonaceous steel, from stainless steel (corrosion-resistant).

Features of the model range of VR, VRP, VCP fans

Our catalog includes four popular series of interchangeable centrifugal dust fans that are effective in various industries:

Dust fan VR 100-45. A series used for the removal of dusty air in factories producing cement and concrete products, as well as for the transport of dusty products, incl. in workshops producing grain waste and cereals. of this series is equipped with a bearing assembly having a split design and a bearing bigger size from the side of the impeller. These features significantly increase the reliability of operation;

VRP-115-45. A series designed for the extraction of metal dust and shavings in metalworking enterprises. Dust fans effectively operate as part of systems for pneumatic transportation of grain, cereal masses, aspiration of dusty air masses at cement-producing enterprises, etc. Medium pressure models are single suction and have a carbon steel or corrosive 'stainless steel' swivel volute body. Equipped with a split bearing assembly, which increases maintainability - bearings can be replaced without removing the impeller;

VCP 6-46, VCP 7-40. A series of dust fans designed to move dust-gas-air non-aggressive mixtures that do not contain sticky substances in dust cleaning systems, ventilation and aspiration of dust air pollution in industrial sectors. High performance, reliability, and simple installation and maintenance. In particular, the split bearing assembly allows for the replacement of bearings in the housing without the need to remove the fan impeller.

We offer dust fans Russian manufacturer in an assortment sufficient to select a model suitable for certain conditions of use. A distinctive feature of these fans is the price, which is low for high-quality equipment.

Our experts will provide you with a more complete and detailed information concerning technical characteristics, installation and operation. They will also help you choose and buy fans that meet the requirements of a particular production.

The problem of removing unpleasant odors is faced by many residents of megacities. It is especially relevant in old houses with natural channels. As part of today's review, we will consider silent duct fans for exhaust hoods, analyze their types and advantages / disadvantages. Along the way, we will deal with those technical characteristics that you should definitely pay attention to, and tell you how to properly install such a fan and, if necessary, repair it. And we end our story with a review best models duct fans.

In the phrase of the title of the subsection, there are two terms that need to be parsed. These are "channel" and "exhaust". With the second, everything is easier. That is, the device must be installed on the exhaust section of the ventilation system. To make it clear what we are talking about, we explain that ventilation works on the principle of removing air masses and the same amount of inflow. One does not exist without the other.

Fans can be installed on or on an exhaust fan. Exhaust models are most often used. By the way, such devices include roof fans or centrifugal "snails" installed on the street.

The channel unit is a completely different design. It is cylindrical in shape, inside which a fan is mounted. That is, the device itself can become a continuation of the ventilation system duct or can be installed in the body of the wall, or rather in through hole made in the wall. More often, such models are called air, but no matter how they call it, the essence remains the same - air extraction with a fan.

Why is a silent fan better for a hood?

Now let's see why such fans are called silent. Any equipment that has rotating parts makes certain sounds associated with the formation of vibration. Fans have another reason to make noise - this is the air flow that passes through the internal space of the device.

Attention! According to SNiP 23-03-2003:SN 2.2.4 / 2.1.8.562-96, the noise level inside residential premises should not exceed 35 dB. For comparison, there are several options for noise levels.

It is under the value of 35 dB that the noise level of the operating device is adjusted. This is achieved in several ways:

1. High-precision bearings are installed in the design of the fan, which are devoid of such properties as runout. No beat - no vibration of the motor shaft on which the fan impeller is mounted.
2. Precise balancing of the blades on the impeller creates conditions for the complete absence of vibration of the air flow.
3. Accurate selection of the number of blades, their angle of inclination.
4. Use inside the body of gaskets made of special rubber. In the process of down with operation, it does not burst and does not tear. Gaskets are installed between the fan housing and the legs (brackets) of the electric motor.

All this in a compartment creates conditions for silent operation of devices. Their noise level does not exceed 25 dB. That is why they got their name.

Varieties of duct fans

Basically silent or bathroom are divided into two categories:

• in shape,
• by design.

In the first case, there are two groups: with a round section of the body and with a rectangular one. In the second, these are axial fans, radial and centrifugal. Duct fans for round ducts are most often used in private housing construction. But there is one moment that determines the installation location.

For example, very often the exhaust section of a ventilation system is a vertical pipe (usually plastic or concrete) that permeates the building from the roof. They hide such an air duct in the walls during the construction process or build it in the form of a separate box. You can not install a duct fan in it. Because if the device fails, it will not be possible to repair or replace it. On such an air duct, you can put a roof model. Duct devices are mounted in air ducts that remain outside the building structures. For example, collected in the attic.

As for rectangular units, they can be attributed to the group of industrial exhaust fans. But this does not mean that they are not used in residential housing construction. Rectangular air ducts are also used in residential or office buildings. The photo below shows one of the models made of plastic. This is a wall or ceiling type device with a rectangular body. Pay attention to its blades, this is a centrifugal type fan. His blades are located along the direction of air flow.

Axial fans

An axial model or axial model is a device in which the direction of air movement corresponds to the location of the axis of the electric motor. An impeller is mounted on it. It is this design that has received great use in everyday life, because:

• it has a low-power electric motor;
• but this power is sufficient to provide the required air exchange both in living quarters and in office ones;
• simple tube design.

Attention! By themselves, axial fans are the quietest among all models used.

Radial

The principle of operation of these devices differs from the previous ones in that the movement of air masses does not occur along the axis of the motor shaft, but with an inclination depending on the slope of the impeller blades. They can be tilted back or forward. Accordingly, with a forward slope, the fans are installed on the air supply, with a reverse slope on the exhaust.

But the slope affects not only the direction of the flow. There are other features as well:

Exhaust duct fans for the kitchen or bathroom general case the radial models.

Centrifugal

The duct type centrifugal exhaust fan is a novelty that has appeared on the market relatively recently. But she took her place firmly. A distinctive feature of this variety is the impeller with blades that are located longitudinally to the axis and do not have a slope in the longitudinal plane. They have a slope at the transverse plane.

The devices got their name only by the fact that during the rotation of the impeller, the blades throw air towards the body of the apparatus, where a zone of high pressure is formed. And in the center, on the contrary, there is a zone of low pressure. That is, there is a sharp movement of air from the center. It is the pressure difference inside the housing that creates the conditions under which external air begins to be sucked into the unit.

And another one distinguishing feature- This is a special collector that performs the functions of a diffuser. Its design helps to facilitate the suction of air inside the fan.

Design and details of the duct fan

As mentioned above, the design of duct fans is a housing inside which an electric motor is installed. An impeller is attached to the shaft of the latter. The case has cylindrical shape, but the length of the cylinder can be quite large relative to the diameter or not very large. The first includes models that are mounted on walls. To the second, which are installed in duct systems.

The first are supplied with two decorative ones, which are installed on the surfaces of the walls located on different sides. The latter are attached to the air ducts with special collectors on clamps, which are supplied with the fan. The latter are usually sold assembled.

Some models are equipped with check valves that prevent air from moving in unusual situations. reverse side i.e. inside the building. We must pay tribute to the fact that although the exhaust fan with a check valve is more expensive, but it protects interior spaces from improper operation of the ventilation system. For example, summer, heat, the fan "passed out" for some reason. If the temperature inside the house is lower than outside, then the air will begin to move in the opposite direction. check valve this will not happen.

Technical characteristics of duct fans and selection rules

Like all devices of this type, channel ones have one main characteristic: power (performance). More precisely, the volume of air that passes through the device per unit of time. Usually used to measure Cubic Meters passing in one hour - m³ / h.

This indicator depends on two parameters:

• speed of rotation of the electric motor (impeller), and than more speed, the higher the performance;
• the overall dimensions of the fan itself, the larger they are, the greater the power.

In addition, it is necessary when choosing to pay attention to other qualities of the device. Namely:

1. Security class. This refers to protection against dust and moisture. This is especially important if .
2. Functionality. Here it is implied automatic operation device or standard. The second refers to the function when the device starts working when turned on. To the first, when it turns on at certain intervals programmed in the settings.

Fan performance

By eye, this option cannot be selected. Because it will depend on the required air exchange in the room. If we are talking about the general ventilation of the house, and not about a specific room, then you will have to add up the air exchange values ​​\u200b\u200bof all the rooms of the house. This will be the performance of the fan.

For example, a house in which the total living area is 100 m², the ceiling height is 3 m. In them, the air exchange will be equal to the volume of the room, that is, 300 m³ / h. Here we must add the air exchange of the toilet and bathroom - 25 m / h each and the kitchen 60 ÷ 90, depending on the type and. It turns out:

300 + 25 + 25 + 70 = 420 m³/h.

This is the performance of the fan.

Geometric dimensions

The marking of fans of this type is based on the diameter of the inlet and outlet. Size according to given parameter: 100 mm, 125, 160, 200, 250 and 315. Duct fan for hoods 100 and 125 mm are classified as household. Inline fans 160 and 200 mm are more often installed in restaurants, cafes, large-scale shops and other establishments. The rest can be attributed to industrial models that are mounted in the air exhaust system. production shops. All of them are powered by 220 V electricity.

For example, let's take a look at devices of the VKK brand (round duct fan), the photo and table below show its dimensional parameters.

How to install a duct fan

From the photo shown above, we can conclude that the device itself is selected according to the diameter of the duct. For example, if an exhaust fan with a diameter of 100 mm is installed in the system, then the air duct must also be of this size.

1. So, the installation begins with the disassembly of the device itself. It is necessary to unscrew the clamps and pull out the fan itself.
2. After that, the delivery with two branch pipes, which are rigidly connected to each other, and more often they are a single part, is mounted in the air duct. That is, the nozzles are inserted into the two ends of the pipes, between which the fan is installed.
3. The stand or brackets are attached to the wall or ceiling, or to any other flat surface(columns, arches, etc.), near which the piping runs. Fastening is made on dowels and self-tapping screws.
4. The fan is inserted into its place, attached to the nozzles with clamps, under which rubber gaskets are laid.

Attention! The distance from the elbow to the inlet pipe must not be less than one diameter. In the case of silent duct fans 100 mm, this distance should not be less than 10 cm. The distance from the outlet to the outlet or fitting should not be less than three diameters.

How to properly care

If we are talking about devices that are installed in the duct system, then maintenance is rarely carried out, especially if the pumped air is dry and clean. Once every two or three years, you can open it and clean it from dust. If possible, you can try lubricating the bearings. But, as practice shows, this is a matter for professionals.

With regard to wall-mounted fans, once a year it is recommended to remove the decorative grilles and clean the inside of the cylinder. Everything else is not available.

Do-it-yourself duct fan repair

Here's what is never recommended to do - do-it-yourself repairs. Typically, the fan motor or capacitor fails. If the first burned out, then it will have to be replaced with a new one. And it’s not a fact that you will find a motor in the store that matches the brand of the engine.

As for the capacitor, if you understand something in electrics, then you can handle the replacement. To do this, you will have to measure the capacitance of the part with a multimeter. If it corresponds to the passport (indicated on the case) or a little more, then it's not about him. But if the capacity is less, then you have to change. By the way, it is necessary to measure the parameter with the capacitor disconnected from the network with its preliminary discharge (close the two ends with a wire).

But, as practice shows, high-quality models will serve faithfully for more than a dozen years. And if at one point there was a failure in work, it is better to put a new one instead.

Article

Dust snail fan BP 100-45 designed to work as part of supply and exhaust ventilation systems, and are also used in systems air heating and air conditioning of residential, public and industrial premises. Due to the special design of the impeller fan VR 100-45 - chip extractor can work with air and non-explosive gas mixtures, the specific dust content of which reaches one kilogram of dust and suspended solids per cubic meter (1kg / m3). Due to this, they are successfully used in systems of general exchange and local exhaust ventilation in production areas where intensive air purification is required working area: in metal and woodworking shops, on grain crops transportation lines, etc.

Overall dimensions of VR 100-45 fans

Position of fan housing BP 100-45, version 1

dimensions fans BP 100-45, version 1

Overall and connecting dimensions of VR 100-45 fans No. 2.5, No. 3.15, No. 4, version 1

Overall dimensions of VR 100-45 fans No. 2.5, No. 3.15, No. 4, version 1

Overall and connecting dimensions of fans BP 100-45 No. 5, No. 6.3, No. 8, version 1

Overall dimensions of VR 100-45 fans No. 5, No. 6.3, No. 8, version 1

Position of fan casing BP 100-45 version 5

Overall dimensions of fans BP 100-45 No. 5, No. 6.3, No. 8 version 5

Overall and connecting dimensions of fans BP 100-45 No. 5, No. 6.3, No. 8, version 5

Overall dimensions of fans VR 100-45 No. 5, No. 6.3, No. 8, version 5

Overall and connecting dimensions of fans BP 100-45 No. 10, version 1

Overall and connecting dimensions of fans BP 100-45 No. 12, version 1

Overall and connecting dimensions of fans BP 100-45 No. 10, version 5

Payment Methods:

• By bank transfer for legal entities with VAT.

Delivery in Moscow and Moscow region:

• Transport company Business lines or PEK, others by agreement.
• Goods "in stock" can be picked up from the warehouse on the day of enrollment Money to our checking account.
• Delivery is carried out within 1-2 business days from the moment your order is ready.

Delivery across Russia:

• Transport company (TK) Business lines or PEK, others by agreement. Delivery to the terminal TK - FREE OF CHARGE. (3 times a week).
• The cost of delivery of shopping malls depends on the region. Our managers will calculate all the options and offer the most convenient and profitable delivery method for you.
• Our vehicles in the shortest possible time. Shipping costs are calculated based on the volume and weight of the shipment.

Guarantees

• Our company sells exclusively new goods, which are covered by a factory warranty from 12 months to 36 months.

Design features

The layout of the dust fan BP 100-45 is monoblock. The product is delivered to the customer assembled in the original packaging. Fan BP 100-45 consists of the following structural units.

The frame is a welded metal structure that supports the helical fan housing and Electrical engine. During installation, the fan frame is attached to the foundation, ceiling or other load-bearing base using anchors. To reduce vibration loads and improve noise performance, it is recommended to install the frame on a supporting surface using spring or rubber vibration dampers.

The function of the body is performed by a spiral body-snail chip ejector, which during installation can be turned under right angle to the horizon at an angle from 0 to 315 degrees (with a discrete step of 45 degrees) for more convenient pairing of the outlet pipe with the air duct.

The radial impeller of the BP 100-45 fan, depending on the model, can be equipped with 6 or 8 blades and is placed coaxially with the circular inlet. The outlet pipe has a rectangular cross section and is located perpendicular to the axis of rotation of the impeller. Both spigots are equipped with flanges for interfacing with the air duct (direct connection through a sealing element or with flexible connectors of the appropriate section).

Manufacturing options

Dust fan BP 100-45 produced by the manufacturer in 9 standard sizes. The selection of equipment by performance is carried out on the basis of the purpose and actual operating conditions.

Fans ВР 100-45 have two variants of drive configuration: - direct connection to the impeller hub; - Via V-belt transmission.

Also, radial fans BP 100-45 can be supplied in two versions according to the impeller design:

Execution 1 - the presence of fibrous substances is not allowed in the working environment;
- execution 2 - in the working environment there may be a small amount of fibrous inclusions (it is possible to use the equipment in textile factories, where the working environment contains fibers of viscose, cotton, wool, etc.).

Depending on the purpose, the manufacturer produces radial fans BP 100-45:

General industrial (basic version);
- corrosion-resistant;
- explosion-proof.

terms of Use

This class of ventilation equipment is designed to operate in temperate climates (t=-45…+40С), temperate and cold (t=-60…+40С) and tropical (t=-10…+50С).

Location category - 2 and 3. It is allowed to operate radial fans BP 100-45 according to location category 1, provided that the electric motor is protected from direct solar radiation and precipitation.

The main task of ventilation is to create comfortable and safe conditions for human stay, as well as the flow of production processes in accordance with established standards.

The problem is solved by removing polluted air and replacing it with fresh air.

Modern supply and exhaust systems not only provide air exchange, but also control the level of humidity, change if necessary temperature regime, heating or cooling the air, and, of course, filtering it.

Depending on the application, both the fans themselves and the filters used in them have significant differences. Thus, devices for household appliances have a completely different content than filter fans for installation in complex manufacturing and knowledge-intensive enterprises.

Air filters are made from different materials, they can be paper, cloth, mesh, foam and are used to trap gas impurities and mechanical impurities.

Also quite popular dust filters, which are used both in household and in industrial purposes.

• thin,
• rough,
• special for ultra-high cleaning.

By filter material:

• fiber,
• metal,
• coal.

According to the degree of efficiency, they are divided into the following classes:
- 1st class: capture almost all pollution,
– 2nd class: to eliminate contaminants larger than 1 micron,
— Class 3: for dust larger than 10 microns.
Which fan with which filter to use, experts decide in each case. More simple models intended for domestic use.

Quite different requirements are imposed on equipment for use in large enterprises.

Class 2 and 3 filters are enough to purify the air at home, in medical institutions, high-tech industries, fans with class 1 filters are installed.

There are two main types of fans in which filters are used today.

This type of fans provides high-quality air exchange, eliminates harmful impurities from the room, unpleasant odors and promotes the penetration of fresh air into the room. It is used in offices and apartments, as well as in business centers, residential and administrative buildings, and in production.

In order for the air to enter the room purified, supply fans are additionally equipped with special filters. They trap not only dust, but also small insects, smells, microorganisms.

There are the following types of supply fans with filters:

• mechanical mesh - perform preliminary and fine cleaning,
• with activated carbon, or adsorption,
• ionizers (electrostatic),
• HEPA - for fine cleaning, also used in vacuum cleaners,
• ultrasonic,
• ultraviolet and others.

For apartments and office space use the following types supply fans:

• wall-mounted (mounted in a hole in the outer wall),
• window vents (selected according to the size of the vent and installed in it),
• inline filter fans(mounted in ventilation ducts),
• window (installed in the slot of the window glass).

How more powerful fan and the better the filter, the more effective the air purification will be.

This type of fan is usually installed in kitchens and bathrooms to remove unpleasant odors and humidity, and is also combined with supply systems for installation in other rooms.

The simplest variations of exhaust systems rarely cause problems during operation, especially with proper care and regular replacement of filters. The principle of operation of the technique is to draw air through the grate using a paddle wheel and bring it out. Devices can also be built into walls or windows.

According to the diameter of the air ducts, devices with standard size 105, 125, 160 mm, but in stores you can also find products with other parameters for installation in complex industries.

The main types of exhaust devices with filters include the following:

• classic - work according to a simple scheme using switches, motion sensors and other elements,
• with a timer - they turn on only when the light in the room is turned on and continue to work until it is turned off (handy if you went into the bathroom for a short time or, on the contrary, want to “dry out” the room),
• with a humidity sensor - detects the excess of a certain level of humidity and starts working until this indicator drops to the optimal value.

There are also combined models, with remote control and other handy features.

Activated carbon is perhaps the most popular absorbent, therefore it has long been successfully used in ventilation systems of various levels of complexity.

The simplest example of a carbon filter fan is kitchen hood, which thanks to it effectively eliminates unpleasant odors, fumes, grease even without installing an additional air duct. In popularity, such hoods have long “caught up” with traditional ones due to their reliability and ease of installation.

The smaller the charcoal granules, the more efficient the air purification will be. Coal absorbs all impurities with its own pores. It clogs up quite quickly, especially with intensive use, therefore, after 3-4 months of use, it is recommended to replace it, with rare use, you can do this once a year. Otherwise, coal not only ceases to cope with its task, but also becomes a source of air pollution.

In ventilation systems, carbon filters are usually used as a second, finer stage of purification, so it is recommended to combine them with other types of filters. Installation is possible in apartments, offices, factories, compressor stations, business centers, residential buildings, cafes and restaurants.

In production, industrial exhaust fans with a carbon filter are actively used. They are used in cafes and restaurants to eliminate odors, on treatment facilities, in medical institutions, as well as to remove organic pollutants from the air.

Popular today cabinet fans with filter, which provide the necessary conditions work in electrical cabinets. Their main task is the removal of heated air from the cabinet and the influx of cold air.

As a result, the temperature inside drops to right level. It is possible to prevent strong heating of equipment elements, protect electronics and electrics from failure and, in general, extend the life of equipment.

Modern devices are compact, durable, quiet operation, easy to install, resistant to ultraviolet radiation and weathering.