Installation of ventilation of industrial facilities. Industrial ventilation Industrial ventilation systems

Mechanical air exchange occurs due to special installations for replacing exhaust air with fresh air. Air currents can be heated or cooled, regardless of the temperature and season outside, and the air can be cleaned, dehumidified or humidified.

How to choose ventilation equipment?

Ventilation equipment, air ducts and other products that are used in the system must be subject to mandatory certification, fire and sanitary assessment and have confirmations for their use in the construction industry. Also, in rooms with a corrosive environment, it is necessary to select materials with protective coatings, it is allowed to paint air ducts non-combustible materials not more than 2mm thick.

Despite the numerous characteristics for the selection of a ventilation system - the types and intensity of air pollution, the purpose of the room, the number of people present, etc., the entire ventilation system is classified into several categories:

• Supply units - provide supply of fresh air from the street. Additionally, you can complete such a system with various filters and heaters.
• Exhaust units - used to remove exhausted polluted air, for example, in the kitchen of a restaurant, in bathrooms, etc. Additionally, the exhaust system is equipped with filtration for air purification, for example, in production. Exhaust ventilation equipment located in bathrooms, smoking rooms and other premises is not allowed to be located together with the supply systems equipment.
• Air handling units - the most effective method to create optimal climatic conditions. Such a system provides an influx of fresh air, while removing polluted air from the room; it can additionally be equipped with various automation, filters, heaters and fans.

Our catalog contains different kinds ventilation equipment with detailed technical specifications, description, photos and prices. You can place an order through the basket or by calling the indicated numbers.

Industrial ventilation differs from residential ventilation not only in scale, but also in the equipment used, requirements and a number of other parameters.

Ventilation of industrial premises must cope with a number of complex tasks

Ventilation systems in industrial enterprises must cope with a number of complex tasks: with the extraction of a large volume of exhaust air from the premises, therefore, their design and installation must be approached with special attention.

Types of industrial ventilation

Like domestic, industrial ventilation can be of two main types.

1. Natural - exhaust ventilation, in which the air circulation in the facility is carried out due to the natural flow of air masses through the ventilation ducts. The operation of such a project is based on the difference in temperatures and pressures inside and outside the premises. The design of natural type industrial ventilation should be carried out taking into account the amount of heat emanating from the production equipment.
2. Forced - ventilation system of premises, in which specialized equipment is used to circulate air masses. Such a scheme is good in that its performance and efficiency are completely independent of weather conditions, and air supply and exhaust are provided by fans and other equipment.

Each of these industrial ventilation systems has its own installation and operation features, as well as advantages and disadvantages.

For example, the installation of industrial ventilation of a natural type will allow you to significantly save on ventilation of the premises, but mechanical supply ventilation will cope with the removal and inflow of air, regardless of the air temperature outside and other factors.

Features and principle of operation of industrial ventilation of natural type

If for your company you have chosen the installation of industrial ventilation, which operates solely due to the difference in temperature and pressure in the room and outside, then in this case, industrial equipment should not emit harmful substances into the environment during operation. Otherwise, you can not do without supply and exhaust ventilation with air filtration.

In order for the exhaust air to leave the production premises in a natural way, it is necessary to calculate and install special ventilation holes, which should be located at different heights.

The principle of operation of natural air exchange in the room is as follows:

• heated air rises and leaves the premises through holes made in advance;
• heavier clean cold air descends through the same holes down;
• the air flows are mixed, the exhaust air goes out, the clean one gets inside.

Ventilation of industrial buildings in this way is rarely used, since its efficiency is not enough to provide a large industrial area with fresh air. Even the most accurate calculation will not help where the equipment works with the release of harmful substances into the air.

Benefits of forced industrial ventilation

Industrial ventilation systems that use specialized ventilation equipment to provide efficient air exchange are much more efficient and boast their own benefits.

1. Large footprint - industrial air handling units use special powerful fans that provide intense airflow.
2. Efficiency - the operation of an industrial ventilation system does not depend on any external conditions.
3. Additional features - this includes the ability of supply and exhaust systems to filter the air at the facilities, humidify it or dry it.
4. Targeted supply of air flows - with proper design and installation, it is possible to direct supply Fresh air straight to work.
5. Increasing work safety - forced-type ventilation of industrial facilities can capture and remove harmful substances from the air in an industrial room, dangerous gases, clean the air masses.
6. Possibility of holding installation work in buildings after their construction is completed. This favorably distinguishes forced ventilation from natural ventilation, the design of which must be dealt with at the design stage of the entire building.

The disadvantages of a forced ventilation system include the high cost of equipment that the system needs to fulfill its purpose.

The main disadvantage of forced ventilation is the high price.

In addition, equipment for the circulation of air masses during operation produces a lot of noise, therefore, when installing such installations at the enterprise, it will also be necessary to calculate the sound insulation.

Types of industrial forced ventilation systems

Purpose and classification supply and exhaust ventilation may be different. There are five types of forced supply ventilation.

1. General exchange - such ventilation provides air exchange throughout the facility. Most often, such a hood is installed in rooms in which work is carried out with poisonous and harmful environment substances, as well as where there are no fixed jobs.
2. local ventilation industrial enterprises- such ventilation is used where it is necessary to ensure effective air extraction in a particular area. For example, local equipment is used for its intended purpose, if it is necessary to remove the exhaust air from the source of the emission of harmful substances.
3. Mixed type - by installing such exhaust equipment, you guarantee the ability not only to carry out general air exchange, but also to carry out ventilation in the workplace.

Regardless of the type, designing the ventilation of an industrial building involves complex calculations. In ventilation systems, different principles of air supply are distinguished:

• supply - the exhaust scheme implies the presence of a blower fan, and the outlet of the exhaust air occurs due to the fact that the pressure in the room increases;
• exhaust - when such a system is installed in a room, the fan works for the outflow of air masses, but their entry from the outside occurs due to rarefied pressure;
• supply and exhaust - such schemes are the most effective, since in them both the inflow of air into the building and the outflow are carried out by specialized equipment;
• recirculation - the calculation of such a system is carried out in such a way that the exhaust air is cleaned with the help of special filters, and then returned to the room again, representing a closed supply and exhaust circuit.

When installing the desired system, it is necessary to take into account the working conditions at the facility, as well as the needs of production.

Industrial ventilation equipment

Installation of industrial ventilation systems involves the use of specialized equipment. During calculations, some of its characteristics may change, but the main components remain unchanged.

1. Ventilation ducts - special pipes, the cross section and size of which depends on the amount of air that needs to be driven out per unit of time. It is from the correct design of the channels that the efficiency of the entire system depends, it is through them that air is transported through the facility. Channels can be made of plastic, aluminum, metal and other materials.
2. Fans are the main component of any air circulation system, provide the necessary power, and also set the direction of air flow.
3. Fittings - like pipes, can be made of plastic, serve to connect channels, create their turns and forks.
4. Filters - an industrial filter can trap large and small impurities that are inevitably found in the air of any industrial facilities. To calculate the type of filter required, it is necessary to know how dirty the air in the facility is.
5. Recuperators - the difference between an industrial ventilation recuperator and a domestic one is that it is able to heat a larger amount of air per unit of time.
6. Air conditioning systems - such systems must be equipped with ventilation if you want the air in the enterprise to be not only clean, but also fresh.

Recuperator - equipment for the ventilation system, necessary for heating the air

Usually, additional components can be used with basic ventilation equipment to increase the efficiency of the entire system.

Design features of industrial ventilation

Whatever the ventilation duct and whatever classification of supply or exhaust equipment you use, when installing an air circulation system in an industrial enterprise, certain points and parameters must always be taken into account.

Before proceeding with the calculation of ventilation, it is necessary to determine the basic conditions of the room, that is, its area, the type of equipment used, the configuration of the space, and much more.

It is worth considering the climatic features of the area in which the manufacturing enterprise is located. It is always necessary to take into account the intended purpose of the premises: if this is a plastics production workshop, then the power of the exhaust equipment should be sufficiently high.

The calculation of ventilation should include the following data:

• section of the incoming and outgoing air channels;
• the area of ​​the ventilation openings;
• air exchange rate;
• estimated capacity of the equipment;
• the amount of materials needed to build the system.

Calculation, design and installation of ventilation systems for industrial premises is a very complex and responsible process, which must be approached very carefully.

If you do not have the skills and tools necessary for this, then it is better to entrust this work to qualified professionals who will cope with it much better, and the system itself will last as long as possible and will effectively cope with the tasks.