Industrial ventilation design. Ventilation of industrial premises: types, requirements, design and control Tasks of industrial buildings

Provision of services for the development of ventilation system projects by LLC TECHNOSTROYALIANS-VOSTOK. Prompt execution of orders, optimal prices and favorable discounts.

From effective work ventilation equipment depends not only on the comfort of people working in the premises (warehouse, workshop), but also on their safety. That is why the qualified selection of air purification units in an industrial building is a responsible decision that does not allow errors and miscalculations.

The engineering and design team of our company is always ready to inspect the facility and, together with the customer, formulate the required technical task. The ventilation system design being developed necessarily reflects:

features of the enterprise's production process;
number and location of workplaces;
imposed sanitary and hygienic requirements;
Availability climatic zones and their location;
the architecture of the building in question;
availability of operating climate control equipment.

Design of ventilation for an industrial building: features and varieties

Depending on the results of the survey and the calculations made, it is selected best option ventilation system, which could be:

supply air (equipment provides air supply to the building);
exhaust ( forced deletion air masses);
supply and exhaust (combined).

Quite rarely in industrial premises the option with natural circulation is considered, and preference is given to the mechanical supply (removal) of air masses via a fan. As a rule, the design of ventilation for an industrial building involves the inclusion of an air duct system (channels for air supply) in the design. Otherwise, the option is classified as “ductless”.

In addition, the developed industrial ventilation systems can be:

general purpose;
local.

In the first case, used ventilation equipment provides for maintaining the same climatic conditions throughout the entire building. In the second, it is used for local removal of harmful vapors or gases from a specific room (workplace).

When making calculations, the following must be taken into account:

required climatic parameters;
necessary air exchange;
supply air distribution;
calculation of air ducts (shape, line section, branching, material used).

The selection of ventilation equipment is made taking into account architectural features building, economic feasibility and the characteristics of the tasks it must perform. Convenient access to all structural components during maintenance must be taken into account. At the final stage, the customer is given a kit project documentation, which includes a set of diagrams and drawings, a feasibility study and an explanatory note.

Ventilation system project from TECHNOSTROYALLIANCE: why is it profitable?

Our company includes a special engineering and design group that has been developing design documentation in this area for many years. By using the services of designers from TECHNOSTROYALIANCE, the client receives the following benefits:

prompt development of an air conditioning and ventilation system project production premises;
guarantees of the quality and efficiency of the calculations provided;
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Industrial ventilation is a complex of special devices and technological devices, which provide organized air exchange of large volumes between the workroom and the street. The quality of industrial ventilation systems is assessed by their ability to effectively remove polluted air, supply fresh air instead, and maintain it in accordance with regulatory requirements temperature regime and microclimate, subject to environmental and sanitary safety standards.

Requirements for industrial ventilation and air conditioning systems

Industrial ventilation is designed to process a large amount of air, while it operates under high pressure and with high speed. When calculating ventilation and air conditioning systems for industrial facilities, the following requirements must be taken into account:

Standards of sanitary and hygienic control, which determine the minimum time for localization and removal of harmful emissions in the work area, creating a comfortable environment for personnel or animals.
Sound. The noise level of the equipment should not exceed existing requirements.
Fireproof. Industrial ventilation components for premises are selected and installed strictly taking into account fire safety requirements.
Operational. The installation methods of all devices and piping must take into account the need for systematic inspection and maintenance.
Energy saving. Ventilation should be as efficient as possible with minimal energy consumption.
Ecological. The environment must be protected from system emissions.

The basic requirements for ventilation and air conditioning of industrial facilities are met during the design and actual construction of the facilities. Heating, ventilation and air conditioning design standards are outlined in Building codes and SNiP rules 2.04.05-91 “Heating, ventilation and air conditioning”.

Types of climate systems

Air conditioners for industrial facilities are characterized by increased power and cooling performance. Each specific device is selected based on the intended purpose of the room being served, its size and the requirements for the microclimate inside the facility.

Multizone VRF and VRV installations

A multi-zone air conditioning system can simultaneously serve several rooms. It consists of one powerful unit, which is installed outside the facility and several modular devices located indoors. Such installations are economical, precise in temperature control and do not make loud sounds during operation.

Chiller-fan coil units

Such a system consists of one outdoor unit - a chiller, and several internal modules - fan coil units. Water cooled to 6-8°C is used as a refrigerant. “Chiller-fan coil” is characterized by increased energy efficiency, has no restrictions on the number of internal modules and can replace the ventilation system and heating system.

Central and rooftop air conditioners

Central and rooftop air conditioners consist of standard sections for air intake and supply, filtration, cooling, irrigation and heating. The air is cooled or heated directly in them to the specified parameters, and then supplied directly to the room through pipelines.

Precision installations

These are cabinet air conditioners equipped with a gyrostat. They consist of two blocks, the inner one has the ability to distribute cold air through the top and bottom panels.

Types of industrial ventilation

Industrial ventilation is the main means of improving the air quality. It is customary to distinguish the following types of industrial ventilation:

aeration or ventilation of premises;
general exchange, artificial (mechanical) ventilation and air conditioning systems (supply and exhaust);
local ventilation suction;
air curtains and jets;
ejection or compression and rarefaction of air for its transmission through air ducts.

In addition, if we take the method of air movement as the basis for the classification, then ventilation can be:

natural;
artificial (mechanical);
combined.

Natural ventilation

Basic operating principle natural ventilation concluded in the movement of air masses under the influence of natural factors without the use special devices and mechanisms. There are two types of such air exchange:

Ventilation;
Aeration.

During ventilation, the exchange of air masses occurs due to the difference in temperature or air density inside and outside the room or as a result of wind pressure.

Aeration is a type of organized general ventilation, which is organized in cold shops and carried out under the influence of wind pressure. In hot shops, aeration occurs due to the combined or separate action of thermal and wind pressure.

Among the advantages of natural ventilation, it is customary to highlight efficiency and ease of operation. However, significant drawback is the fact that this type of air exchange cannot be used in industrial premises where there is a large emission harmful substances. In addition, the air that enters the workshops is not processed, purified, humidified or heated.

Artificial (mechanical) ventilation

Principle of operation mechanical ventilation consists of forced air exchange, where the movement of masses is carried out by means of fans. Fans can be centrifugal, axial or disc.

Depending on the purpose (direction of air movement), artificial (mechanical) ventilation is divided into the following types:

supply;
exhaust;
supply and exhaust.

Supply ventilation is necessary for supply to the workshop fresh air to replace the deleted one. The exhaust system ejects contaminated air masses outside the production area. Supply and exhaust ventilation, as a rule, is used in all industrial premises where increased and particularly reliable air exchange is required.

Local ventilation

Local ventilation is designed to remove contaminated and heated air directly from the places where it is emitted. Thus, it prevents its spread throughout the entire area of the production premises. This allows you to reduce the amount of required air exchange during general ventilation.

Local ventilation includes:

Air curtains. This special devices, which supply air at a sufficiently high speed along the perimeter of the entrance leaf (door, gate). If there are openings in the building that remain open for a long time and to prevent cold air from entering the room, the upper arch of the passage is equipped with an air curtain. It can be heated or unheated.

Air curtains are installed over aisles that are opened more than 5 times per work period or for more than 40 minutes in one shift. Besides, similar system ventilation is mounted above the doors of rooms that do not have vestibules and airlocks when the outside air temperature is below 15°C.

When installing air curtains Calculation of the air temperature in work areas when opening gates or doors is carried out according to the following indicators:

light physical work - not lower than 14°C;
average physical work - not lower than 12°C;
heavy physical work - not lower than 8°C.

With absence permanent places work located directly at doorways, permissible temperature air can drop to 5°C.

Exhaust hoods. Designed to capture the flow of harmful emissions with a density lower than the density of the surrounding air. The operation of the umbrella will be effective when the amount of air removed through it exceeds the volume of air supplied by the convective jet that appears above the heat source at the level of the umbrella.

Suction panels. These devices are designed to localize harmful substances carried away by convective jets, when more complete concealment of the sources of emissions is impossible for technological reasons.

The panels are mounted on the side of the source of pollution in a vertical or inclined position. The distance from the source to the panel should be no more than the width of the source, while the length of the panel is taken as two lengths of the source.

Onboard suctions. Devices that are designed to remove harmful secretions from the surface of the solution when, according to the conditions technological process it is impossible to construct complete shelters. Most often used in galvanizing shops.

Ejection

In cases where it is necessary to remove over aggressive environment or dust prone to detonation from impact or even friction, including flammable gases (acetylene, ether, etc.), in exhaust systems ejectors are used. The principle of operation of ejector units is the injection of high pressure air, which, passing through the suction chambers, creates a vacuum that is filled with a contaminated environment.

Calculation of industrial ventilation

Calculation and design of industrial ventilation depends on the following factors:

nature of production;
type of pollution and discharge;
area of the room and operating time of the machines;
selection radius;
air flow.

Standards have been developed for each type of production and are listed in specialized reference books.

In local exhaust ventilation devices, the required air exchange is calculated based on the localization conditions of impurities released from the source of their formation.

In those workshops where a sudden release of toxic or explosive substances is possible, emergency ventilation is installed, which works only as an exhaust ventilation system. Emergency ventilation must be started remotely. The equipment used is backup and main communications of general industrial ventilation, as well as local suction, which operate only in emergency mode.

Name of premises	Air change rate per hour
Name of premises	influx	hood
1. General chemical	5	5
2. Military	5	5
3. Optical	10	10
4. Physico-chemical	5	5
5. Preparative:
a) in the presence of local suction	by speed in the working opening fume hood
b) in the absence of local suction	8	10
6. Warehouse for glassware and reagents		1,5
7. Room for preparing samples for analysis	8	10

In general, for designing general ventilation of an industrial building general indicators there won't be enough.

Production premises- quite a difficult task. The creation of schemes is carried out taking into account the specifics of the enterprise’s activities. Let us next consider what it is ventilation of industrial premises. Its types and requirements for it will also be described in the article.

Classification

The main task of production facilities is to promptly “catch” all impurities and remove them. Certain settings are selected depending on specific operating conditions. The air in the units can be moved mechanically or naturally. There is also a classification based on the principle of operation. Ventilation can be supply, exhaust or mixed. Each group has its own subgroups of equipment. So, forced ventilation may be local. It is presented in the form of an air shower, curtain or oasis. General ventilation production premises provides dispersed or directed inflow.

Natural filtration

Supply and exhaust ventilation in production premises functions due to the difference in pressure and temperature outside and in the workshop. The driving force in this case will be thermal or wind pressure. Due to the pressure difference, the expanded masses are forced out of the workshop. In their place, in turn, cold, clean ones are drawn in. A high pressure area forms in the windward area. It increases the flow of outside air. The pressure is always reduced. This promotes the outflow of waste materials. Ventilation systems and equipment, the functioning of which is based on physical laws, are used, as a rule, in enterprises with intense heat generation. However, powerful exchange does not always ensure the formation of proper working conditions for employees. The greater the temperature difference between the ceiling and floor, the higher the workshop itself, the more efficiently the natural ventilation of industrial premises. If there are cracks in windows and walls, or if doors or gates are opened frequently, drafts may appear. This helps reduce the temperature in the workshop. IN summer time in areas far from windows and doors, ventilation standards are significantly violated.

Aeration

It is used for flexible duct. Aeration is carried out according to the principle of natural draft. In some cases, during the construction of a building, the installations are not installed. In such cases, channels and shafts operating from thermal pressure can be placed in the workshop. Flexible duct covered with a deflector. The wind blows on it, due to which an area of rarefaction is formed. These are widely used on agricultural and livestock farms, in small bakeries, and in forges. They are installed on the high area roofs. Aeration is considered one of the most effective methods natural ventilation. It is often used in enterprises where a large number of heat, poisons and gases.

Device

Natural involves the arrangement of three levels of openings with vents that have a specific design. The first 2 rows are located from the floor at a height of 1-4 m. Light-aeration lanterns equipped with adjustable vents are installed in the roof. In summer, clean flows pass through the lower transoms, and dirty flows are directed upward. When calculating the system, the area of openings and vents is determined. Worst conditions The operation of the installation is considered to be in windless weather. It is taken as a starting point. This works effectively in windy conditions. However, with a certain strength and direction of wind, reverse draft may occur. As a result, air mixed with gases and dust is directed into rooms where people are located. To prevent the spread of harmful substances, lanterns with wind protection are installed. In summer, the influent masses are cooled by spraying into them cold water. It comes from nozzles that are located near the vents. With this cooling, the humidity rises slightly.

SNiP: ventilation and air conditioning

The Regulations set out a number of requirements for buildings that use a natural filtration scheme. In particular, it is necessary that the perimeter of the structure be open to air access. The Rules also state that workshops with a height of no more than 1 floor or located on the top floors of a building are aerated. In multi-bay rooms, installation of natural ventilation is significantly difficult. If the width of the workshop is more than 100 m, practically no clean flows reach its center. In such cases, special Baturin lamps (non-blown) are installed. They have separate channels for supply and exhaust. However, in winter time such an installation can provoke an undesirable decrease in temperature in the workshop. To prevent such consequences, a forced ( artificial) ventilation of industrial premises.

Advantages and disadvantages of aeration

The ventilation elements are controlled mechanically. One of the main advantages of the aeration scheme is the low cost of components. At the same time, the installation can provide sufficiently powerful air exchange. Meanwhile, it also has several disadvantages. First of all, the functioning of the system depends on weather conditions. In addition, as mentioned above, it does not ensure the delivery of clean flows to remote areas of the workshop. Another disadvantage is the complexity of control. Aeration is not used in enterprises that use technologies that involve the distribution of harmful substances.

Forced

It allows you to bring the flow rates supplied to the workshop up to standard levels. The required parameters are defined in SNiP. Ventilation and air conditioning forced method have the following advantages:

Most popular installations

Exhaust ventilation is now widely used. The installation limits the spread of contaminated streams and removes them directly from the source. The quality of ventilation depends on the correct selection of equipment, the degree of rarefaction of the atmosphere, and the shape of the receivers. The key elements of the installations are:

Suction.
Fan.
Retraction.
Filters.
Exhaust duct.

The entire volume of dirty flows must be captured by the receiver and transmitted further through other elements.

Specifics of suction

Air intakes come in closed and open type. The latter include:

Protective cover.
Exhaust hood.

The protective casing eliminates the flow of dust that is formed, for example, in a carpentry shop during polishing, grinding, etc. It is equipped with a visor and is installed across the movement of particles. reduces the area of distribution of hot air containing harmful impurities and rising according to the principle of convection, and removes it. It should be of such a size as to completely cover the source. The umbrella can be equipped with overhangs. They are made of thick fabric or rigid sheets. It is more convenient to use open umbrellas. In them, overhangs do not interfere with the access of enterprise employees. In hazardous industries, the flow speed entering the umbrella ranges from 0.5 m/s, if it is without impurities, then 0.15-0.25 m/s.

Side/articulated-telescopic suction units

They are installed directly at the workplace in galvanic or pickling baths. The air moves over them and draws in harmful vapors of acids and alkalis before they begin to spread throughout the workshop. If the width of the bath is small (up to 70 cm), single-sided suction units are installed; if this parameter is greater than the specified value, double-sided elements are installed. In addition, the latter are equipped with structures that ensure the blowing of vapors from the surface of the liquid. The volume of flow passed through these installations will depend on the level of toxicity of the steam and temperature. The size of the liquid surface is also important. Since vapors quickly destroy metal, suction units are made of PVC and other resistant materials. Articulated-telescopic receivers are quite common. This type is equipped with retractable elements. They can be brought directly closer to the source of pollution. In shops with soldering irons and welding machines, suction units are installed directly into the tools.

Closed type receivers

These include:

Cabins.
Fume hoods.
Cameras.
Shelter boxes.

The latter are used in enterprises with particularly toxic and radioactive substances, where workers carry out all manipulations wearing gloves or using mechanical devices. The cabinets are installed in workshops with intense emissions of harmful gases. Ventilation pipes for hood with complete isolation of the source of pollution are considered the most effective.

Electrical installations

Forced-type ventilation systems for industrial premises are equipped with special units. They are electric fans. As a rule, axial or radial models are installed. The latter are also called “snails” due to the shape of the body. A wheel with blades is built into it. During the movement, the flows enter the housing, change direction and are supplied to the outlet under pressure. The sucked masses are often saturated with aggressive and dangerous compounds, and sometimes with explosive substances. Depending on the impurities, fans are installed at enterprises:

Standard. They are designed to capture flows with a low dust content, the temperature of which is up to 80 degrees.
Anti-corrosion type. Such installations are used to capture vapors of acids and alkalis.
Having protection against sparks. They are used for explosive mixtures.
Dusty. These installations are designed to filter streams containing particles in quantities greater than 100 mg/m 3 .

Axial fans include inclined blades mounted in a cylindrical body. During operation, the flows move parallel to the axis. These units are installed, as a rule, in mines, emergency channels, etc. The advantage of such devices is that they can supply air in opposite directions.

Dust collectors

The current norms and standards determine. Installations must operate in such a way that the content of harmful impurities is within acceptable limits. Accordingly, one of the key parameters is cleaning efficiency. In some cases, one dust collector is enough to filter the air. In this situation, cleaning is called single-stage. If air pollution is significant, multi-stage filtration is organized. Type treatment plant will depend on the shape chemical composition and volume of impurities. The simplest design of a dust collector is a dust-sediment chamber. It significantly reduces the intensity of flow movement, due to which harmful impurities settle. However, this installation can only be used for primary filtration. Dust settling chambers can be labyrinthine, simple, or with a bumper.

Cyclones

They are inertial dust collectors and are used to filter air containing particles greater than 10 microns. The cyclone is designed as a cylindrical metal container, tapering downward. Air is supplied from above. Under the influence of centrifugal force, dust particles hit the walls and fall. Purified air comes out through the pipe. To increase the volume of retained dust, water is sprayed inside the housing. These installations are called cyclone-washers. Recently, rotoclones and rotary dust collectors have become most popular.

Filters

They are also used to purify the air. Filters can be powered by electricity. In this case, positively charged particles are attracted to the negative electrodes. Passes through the filter high voltage. To subsequently clean the electrodes from dust, periodic automatic shaking is carried out. The collected dust is sent to storage tanks. In practice, coke and gravel filters are also used. Fine and medium cleaning devices are made of special material. It can be synthetics, felt, porous fabrics, mesh. They capture not only dust, but also small oil particles. However, such materials quickly become clogged and require regular cleaning or replacement. If it is necessary to filter the air from explosive compounds or gases, as well as aggressive substances, ejection systems are used. They have 4 chambers: diffuser, neck, confuser and for discharge. Streams enter them under high pressure. The direction is set by a compressor or fan. Dynamic pressure in the diffuser is converted into static pressure. After this, the flow is directed outward.

Alternative option

Before directing the air into the room, it must be processed: warmed or cooled, filtered. In some cases, it also requires moisturizing. For these purposes, forced ventilation is used. It consists of:

Fence.
Taps.
Filters
Heaters.
Fans.
Distributors.

Installation of installations is carried out according to certain rules. A supply chamber is provided for the fan, filter and heater. Receivers should be located at a height of 2 meters from the ground, in places remote from sources of pollution. In some cases, installation above the roof of the structure is allowed. When choosing an installation location, consider the direction of the wind. WITH outside air intakes are covered with umbrellas, blinds or grilles. Filters in installations can be various types. As a rule, devices made of non-woven materials are used. In winter, the air is heated using air heaters or heaters. The coolant is electricity or water. For humidification, special irrigation chambers are installed. A fine air fraction is sprayed into them. Cooling is carried out in a similar way.

Local installations

These include air souls. They represent clean flows directed to work areas. The purpose of such a shower is to enhance heat transfer from the employee’s body to prevent overheating. Installations can be mobile or stationary. Hot shops, as well as rooms with infrared radiation greater than 350 W/m2, are equipped with showers. The standards depend on temperature, severity of work, and radiation intensity. Average temperature in the shower is +18...+24 degrees. The flow moves at a speed of 0.5-3.5 m/sec. Its indicator is directly proportional to the radiation intensity and air temperature.

Oases and veils

These devices are often used on large enterprises. Oases serve a section of the workshop, fenced off from the rest of the area using light screens. Within its limits, air moves at a certain speed and has a given temperature. Curtains are used to prevent hypothermia of workers and cooling of the workshop through openings or open doors. They can be without heating or with it.

Preventive supervision

Such sanitary control of industrial premises ventilation systems performed when:

Reconstruction, planning, construction or changing the technology/profile of an enterprise, site, workshop.
Launch of installed or repaired treatment plants.
Introduction of new technological units, processes or chemical substances, capable of providing bad influence on the environment or humans.

Reconstructed or newly built ventilation systems are launched by the commission in in the prescribed manner. It includes a representative of the sanitary and epidemiological service. Assessment and inspection of the ventilation system can be carried out after completion of all construction and installation activities. In this case, before the inspection, it is necessary to establish all technological processes in accordance with the regulations. During the examination production plants must function with the planned load, ventilation devices must reach the specified performance. Preventive supervision is carried out in the form of:

Drawing up conclusions based on design materials on the correct selection of the ventilation scheme. Working and technical drawings serve as documents for verification.
Observations on the installation process
Participation in the reception and execution of conclusions on the compliance of units with current sanitary and hygienic requirements.

Current examination

It is performed in the form of sampling control:

Conditions of the environment in areas where intake devices are located. The inspection can also be carried out directly at the workplace.
Work, condition, operation of ventilation systems.

The frequency and scope of the sample survey is established sanitary doctor. This takes into account the degree of likely negative impact of the production environment at a particular enterprise on personnel.

Providing the workspace with clean air that meets all sanitary requirements is the main task of any industrial ventilation system. Any enterprises, office premises, shopping centers need a properly organized air exchange scheme, which is without a doubt the most important part engineering communications. Designing the ventilation of an industrial building, as one of the main stages of installing an air exchange complex, must provide for many aspects that will ultimately lead to the necessary conditions for the operation of equipment and personnel.

Sample industrial air exchange project

Basic information about ventilation

There are two main types of air exchange systems, which are intended for both residential and industrial facilities:

Natural (passive);
Forced (artificial, mechanical).

We are all familiar with natural ventilation: through supply channels (slits, windows, vents, doors) air flows penetrate into the room and are forced under pressure into the exhaust airlock.

Artificial ventilation, in turn, has its own classification line:

Supply;
Exhaust;
Combined (supply and exhaust).

The principle of natural ventilation

A little about the forced method

The artificial air exchange complex involves the use of specialized climate equipment. In addition to their main purpose (air circulation), these devices help to implement a number of additional ones:

Filtration purification;
Heat;
Cooling;
Hydration.

The optimal option for industrial facilities is considered to be a supply and exhaust circuit that combines both air supply (with heating or cooling) and air removal. Removal may also involve cleaning.

The design of such a complex must be carried out with special care and elaboration of every detail - this is what will guarantee the correct components and the correct functioning of each component.

Variant of supply and exhaust circuit

In each individual case, the calculation and estimate of an industrial ventilation complex is carried out individually, taking into account production features, as well as installation conditions.

Stages of industrial air exchange design

Features of industrial ventilation

First of all, what does it mean when we're talking about directly about industrial air exchange? Industrial circulation air flow carried out by specialized units that have high performance indicators and are designed for complex processing air in various production areas, garage complexes, shopping and office centers, swimming pools, etc. It is the wide range of functional tasks that distinguishes it from domestic ventilation; In addition, industrial air exchange is carried out through a greater number of mechanisms.

Artificial air exchange system

This also includes cleaning air flows from dust and harmful fumes, heating or cooling them, locally removing dangerous gases, etc. Thus, air exchange that meets the requirements of basic sanitary standards is called correct, comfortable, and providing conditions for the implementation of various technological processes and equipment functioning – technological.

Purposes of industrial ventilation

Before you begin designing a ventilation complex, you should determine the key tasks facing industrial air exchange:

Forced removal of exhaust air from the production premises;
Elimination of excess thermal level;
Organization of supply of air flows that meet sanitary standards and requirements for technological processes.

Sample industrial ventilation model

Project implementation procedure

Of course, the implementation of the design of such a complex engineering complex should be trusted exclusively to professionals. Provided here whole line important factors - selection of the right equipment, all kinds of calculations, implementation of installation layout diagrams, and more. The actual volume of work to be done will depend on total area industrial premises and key tasks facing the ventilation system.

Sample layout of the supply and exhaust circuit

Technical task

First of all, technical specifications (TOR) should be developed. Work on this document is carried out either by the customer himself or by experts from the organization involved in the project.

Here the main parameters of air exchange, the specifics of the technological process, and a whole list of requirements for the air exchange complex must be taken into account.

Equipment calculation

This stage of project development is carried out by an engineer. The specialist must perform calculations related to the location of the air ducts, as well as their cross-sections. In addition, at this stage, calculations are made that will be needed to find and optimally configure climate control equipment.

Air duct elbow drawing

Key engineering calculations:

Calculation of climatic parameters. The choice of coefficients for airspace is based on SNiP and also takes into account the individual wishes of the customer.
Determination of optimal air exchange - depending on the purpose of the industrial premises, as well as on the expected number of people who will use this room.
Air distribution calculation. Here, the optimal option for the supply of air flows and removal of exhaust air through the exhaust segment of the ventilation circuit is taken into account.
Identification of requirements for air ducts - configuration features of their layout, as well as cross-section and materials.

Air duct samples

Verification of the project with the customer

At the design stage of industrial air exchange, which we have defined as the third stage, consultations are carried out with the customer regarding individual wishes that are included in the technical specifications. The purpose of the production facility and the results of the calculations of the previous two stages are also discussed here. Equipment is also selected based on economic justification, design nuances of the building itself and the ventilation complex provided for in regulatory documents.

Air exchange network diagram

System drawing

After this, the engineer begins to create drawings and diagrams for the distribution of air exchange network components. In addition, specifications for units and materials that will be used in the ventilation complex are being drawn up, as well as an economic and technical justification for the project of implementing a forced-air industrial air exchange scheme is being drawn up.

Design is not always carried out before the start construction work. Integration of the ventilation system into the engineering structure of the building, its coordination with other important communications can be done already for the finished building - during overhaul or restoration of an industrial facility.