Installation of industrial ventilation assembly. Ventilation of industrial premises

All industrial premises differ in the type of activity, technological processes and other factors that affect the release of harmful substances. Due to the presence of a large number of employees, for their safety, all sanitary and microclimatic conditions must be observed: the exclusion of an increased concentration of harmful substances, the optimal level of temperature, humidity, permissible noise and vibration levels. During non-working hours, deviations of the parameters of the requirements are possible upon agreement at the stage of the technical task.

To create all the above conditions, as well as to create effective air exchange at the design stage, it is necessary to plan a competent ventilation system for an industrial building. The definition of a rational type of system depends on some points:

Type of ventilation - forced, natural or mixed;
Classification - general exchange or local;
Supply, exhaust or supply and exhaust system;
Type-setting or monoblock.

The natural system is a more economical option based on the principle of cold air being replaced by warmer air. In other words, the flow of air occurs due to ventilation. For large areas, as well as in winter, this method is unacceptable.

Forced ventilation is the optimal efficient solution, requiring equipment and electricity costs.

To organize air exchange at a large industrial enterprise, a general exchange system is designed. If, on the contrary, the localization of contaminated air flows is necessary over certain sections of technological processes, it is rational to use local exhaust installations. Together, the system provides an influx of fresh air, and also prevents the spread of polluted air masses throughout the territory.

An equally important task in the design and installation of a ventilation system for industrial premises is considered to be the provision of people on the territory of the facility with a thermal and functional state that creates a comfortable feeling and increases labor productivity. In addition, warehouses are provided on the territory of industrial-type structures, where it is also necessary to provide the necessary conditions for storing goods or products of various types.

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Norms and requirements

The technological process involves the use, emission and accumulation of substances harmful to health in the air. The advantages of a forced ventilation system are:

Supply of fresh air to replace exhausted air masses. The air can also be subjected to additional processing - heating, dehumidification, humidification;
Movement of air currents over long distances;
Supply of purified air directly to workplaces;
Independence from weather conditions or other factors;
Possibility of automatic control.

There are a number of mandatory standards that the ventilation system of industrial premises must comply with, these include the optimal microclimate parameters used in the workplace:

* - Normalized temperature parameters, air speed are not used during non-working hours, as well as in the absence of technological processes. Forced industrial ventilation using ventilation equipment is considered the most effective method for creating effective air exchange if the acceptable microclimate standards or air speed cannot be provided by natural ventilation in rooms without natural ventilation. Powerful ventilation units are able to cover a large area, providing an intense air flow. Such a system does not depend on the outside temperature and has additional features (filtration, recuperation, humidification, dehumidification).

Design rules

The specifics of industrial ventilation is based on the calculation of the required air exchange, the selection of the necessary equipment and the number of people in the premises.

Important: Equipment should be selected only if there is certification and confirmation of fire safety, giving maximum performance with minimal energy consumption.

At the stage of design work, a technical task is drawn up, including:

Layouts and architectural features of the object;
General drawing, sections of the building;
Estimated number of people;
Types of production or industry processes.

The terms of reference is a substantiation of the working project, at the stage of which the calculation of air exchange is performed, the locations of air ducts (number, length, sections) and equipment are determined, and the specification is filled out. After the project is approved, the installation team can go to the site.

automation and control

Modern automation systems are designed to maintain the operation of all devices and mechanisms, as well as to alert in case of emergencies. The equipment allows you to control the system remotely. The responsible operator can independently adjust the modes or make adjustments.

In addition, automatic ventilation control is performed on the basis of individual monitoring of each part of the mechanisms, as well as the system as a whole.

Other benefits of automation are highlighted:

research, information, adjustment of various indicators;
protection of the heater from drops, low temperatures;
maintenance of the set parameters;
the ability to work in the mode of ventilation, humidification, dehumidification of the room;
indication of the level of contamination of filters or notification of the need for service;
blocking the operation of the system in the event of a fire or other emergencies.

The list of automatic devices includes:

temperature controllers;
fan speed control device;
sensors, controllers;
electric shut-off and control valve.

Avik specialists, regardless of the specifics of your company's activities, will help not only to calculate the ventilation system, but also to select equipment based on your budget. In the process of work, all the requirements of SNiP, GOST are taken into account.

To create and maintain an optimal environment for efficient life, it is necessary to install ventilation equipment. A modern ventilation system will provide filtered outside air in summer and heated air in winter. In addition, good ventilation will maintain a constant temperature and humidity, control the level of concentration of substances harmful to health.

Types of ventilation

There are several types of ventilation systems that can be combined into groups:

According to the method of air movement (natural, mechanical)
By the method of organizing air exchange (local, general)
According to the principle of operation (exhaust, supply)
By design (monoblock, type-setting)
By the presence of air ducts (ducted, non-ducted)

Whatever system you choose, it is essential to maintain a balance - simultaneous intake of outside air and exhaust of exhaust air. If the inflow is insufficient, then the oxygen content will decrease, and the humidity and dust content will increase. If there is not enough exhaust, then polluted air, unpleasant odors, moisture and harmful substances will remain in the room.

Natural

Natural ventilation is simple, does not require energy consumption and sophisticated equipment. But its effectiveness depends on temperature, wind speed, etc.

Mechanical

Mechanical ventilation moves air over long distances. Basic equipment: fans, electric motors, air heaters, automation, dust collectors.

Supply systems

Supply systems are used in apartments and small rooms. They supply air after preliminary preparation, including cleaning, cooling and heating. They can be completed in a single body or consist of various elements:

Air intake grille
Air valve
filters
heater or air heater
Silencer
fan
air ducts
Air distributors
Adjustment and automation systems

Exhaust systems

Exhaust systems remove polluted air from a room. They may consist of a single exhaust fan, but when cleaning several rooms, an intake duct network is necessary. Supply and exhaust combinations allow you to simultaneously supply and remove air. They are developed on the basis of ventilation units or consist of different elements.

Local and public

The fight against harmful substances in indoor air is carried out with the help of local or general ventilation.

General exchange struggles with harmful substances that are contained in the air of the entire room. When installing this type of ventilation, the volume of exhaust air is calculated so that the same amount of air is extracted from the room as it is supplied. But if the air supply is not equal to the exhaust, the missing air volume is pumped from the rooms nearby or through the openings of the fences.

Local ventilation removes harmful substances from the premises in the place where they are formed.

The combined system, which includes general exchange and local exhaust systems, most effectively solves the problem of ventilation.

Channel and channelless

Channel and ductless ventilation systems are either a duct system with an extensive network of air ducts for moving air, or a system with no channels (air ducts), which is used when installing a fan in a ceiling or wall, in the presence of natural ventilation.

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.

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.
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 openings, 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.

Large footprint - industrial air handling units use special powerful fans that provide intense airflow.
Efficiency - the operation of an industrial ventilation system does not depend on any external conditions.
Additional features - this includes the ability of supply and exhaust systems to filter the air at the facilities, humidify it or dry it.
Targeted supply of air flows - with proper design and installation, it is possible to direct fresh air directly to the workplaces.
Increasing the safety of work - forced-type ventilation of industrial facilities can capture and remove harmful substances, dangerous gases from the air in the industrial premises, and purify the air masses.
The possibility of carrying out 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

The purpose and classification of supply and exhaust ventilation can be different. There are five types of forced ventilation.

General exchange - such ventilation provides air exchange throughout the facility. Most often, such a hood is installed in rooms where work is carried out with toxic and environmentally harmful substances, as well as where there are no fixed jobs.
Local ventilation of 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.
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.

Ventilation ducts are 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.
Fans are the main component of any air circulation system, provide the necessary power, and also set the direction of air flow.
Fittings - like pipes, can be made of plastic, serve to connect channels, create their turns and forks.
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.
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.
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.

Modern ventilation systems and accessories for them - this is our profile, and we can offer our customers almost the entire line of moving and moving devices and mechanisms produced in the world today (ventilo in Latin - winnow, wave). They are reliable, convenient and beautiful, allowing you to fit the fans bought from us into the style of any room.

You only need to know which fan required in terms of the tasks that it will solve and the volume of the room where it is planned to be used. And then choose the equipment that suits you best from an extensive list of items.

For simple mixing of air within the same room, so that it does not stagnate, creating the effect of a breath of wind, we have a variety of bladed and bladeless fans desktop, floor, wall and ceiling mounting. All of them have an attractive design, powerful engines that operate as quietly as possible, several speeds of operation and are very inexpensive.

However, real ventilation with ventilation, that is, the injection of fresh air into the room and the removal of contaminated air by such devices is not carried out. For this we need exactly ventilation systems different power. We have them in all three types of their purpose: supply, exhaust, general exchange with a full cycle of all operations: extracting old air, ejecting it and forcing fresh air.

We offer turnkey ventilation systems

We will tell and show you which ventilation systems can offer you "Vent-style" in terms of their functional features.

Forced ventilation designed to provide fresh air into the room. Previously, natural ventilation was mainly used - due to the difference in air temperatures inside and outside, air exchange occurred. But such a ventilation system is too dependent on climatic conditions, and artificial ventilation, carried out with the help of a fan, heater, air ducts, will always work.

Exhaust ventilation removes stale air from the room, allowing clean air to naturally penetrate into it. It is advisable to install exhaust ventilation in kitchens, hallways, bathrooms, that is, not in residential premises, but in domestic premises. When designing industrial premises, exhaust ventilation can be equipped with designing industrial premises, then exhaust ventilation can be equipped with an additional filtration filtration system.

General ventilation today it is used most often, because it provides for the intake of air, its removal and the influx of fresh air masses.

General exchange ventilation it is completed, as a rule, with a set of filters that do not allow polluting the atmosphere and clean the air supplied to the premises from dust particles, as well as devices for its additional heating or cooling.

Here you can choose any ventilation system"turnkey" with its complete set of any elements: filters and air ducts for round and rectangular ducts, transformer and seven-story speed controllers, valves, additional silencers.

We will help you pick up and deliver to your destination any fans and ventilation systems in a set for residential, public and industrial premises, including volumetric exhaust units installed on the roofs of buildings.

In addition, we have a wide range of high-temperature fans that cool electronic devices, installations and equipment used in a wide range of applications - from home computers to factory assembly shops. There are also special channel high-temperature fans for removal of air from fireplaces and other constructions.

Please note that all motors of our fans for domestic and industrial purposes are mounted in soundproof housings and equipped with overheating protection with automatic restart function.
You can be sure that what we offer ventilation systems have certificates of conformity to the quality established by state standards and warranty periods of operation.

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