Industrial ventilation is a complex special devices and technological devices that 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, maintain 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 provide treatment a large number air, while it works under high pressure and at high speed. When calculating ventilation and air conditioning systems for industrial facilities, the following requirements must be taken into account:

• Norms of sanitary and hygienic control, which determine the minimum time for the localization and removal of harmful emissions in the working room, creating a comfortable environment for staff or animals.
• Sound. The noise of the equipment should not exceed the 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 pipelines should take into account the need for systematic inspections and maintenance.
• Energy saving. Ventilation should be as efficient as possible when minimum costs electricity.
• Environmental. The environment must be protected from emissions from the system.

The basic requirements for ventilation and air conditioning of industrial facilities are met even during the design and construction of facilities. The norms for the design of heating, ventilation and air conditioning are set out in the Building Norms and Rules SNiP 2.04.05-91 "Heating, Ventilation and Air Conditioning".

Types of climate systems

Industrial air conditioners differ increased power and cold performance. Each specific device is selected based on the intended purpose of the serviced room, its size and those requirements that apply to the microclimate inside the facility.

Multizone VRF and VRV units

The multi-zone air conditioning system is capable of serving several rooms at the same time. It consists of one powerful unit, which is installed outside the object and several modular devices located inside the premises. Such installations are economical, accurate in temperature control and do not emit loud noises during operation.

Chiller-fan coil units

Such a system consists of one outdoor unit - chiller, and several indoor modules - fan coil units. Water cooled to 6-8 ° C is used as a refrigerant. Chiller-fan coil unit is characterized by increased energy efficiency, has no restrictions on the number of internal modules and is capable of replacing 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. Air directly in them is cooled or heated to the specified parameters, and then through pipelines it is supplied directly to the room.

Precision installations

These are cabinet air conditioners equipped with a gyrostat. They consist of two blocks, the internal 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 environment. 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 the method of air movement is taken as the basis for the classification, then ventilation can be:

• natural;
• artificial (mechanical);
• combined.

Natural ventilation

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

1. Airing;
2. Aeration.

During ventilation, the exchange of air masses occurs due to the difference in temperature or density of air 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 is carried out under the influence of wind pressure. In hot shops, aeration occurs due to the joint or separate action of thermal and wind pressure.

Among the advantages of natural ventilation, it is customary to highlight economy and ease of use. However, a significant drawback is the fact that similar view air exchange cannot be used in industrial premises in which there is a large emission harmful substances... In addition, the air that enters the workshops is not processed, cleaned, humidified and not heated.

Artificial (mechanical) ventilation

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

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 required for supply to the workshop fresh air instead of the remote one. The exhaust air discharges contaminated air masses outside the production area. Supply and exhaust ventilation, as a rule, is applied in all industrial premises where increased and especially reliable air exchange is required.

Local ventilation

Local ventilation is designed to remove contaminated and heated air directly from the place of its release. Thus, it prevents it from spreading over the entire area of ​​the production facility. This makes it possible to reduce the amount of required air exchange during general ventilation.

Local ventilation includes:

Air curtains... These are special devices that supply air at a sufficiently high speed along the perimeter of the entrance curtain (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 not.

Air curtains are installed over aisles that open more than 5 times per working interval or more than 40 minutes per shift. In addition, such a ventilation system is installed above the doors of rooms that do not have vestibules and locks at an outside air temperature below 15 ° C.

When installing air curtains the calculation of the air temperature in working rooms when opening gates or doors is carried out according to the following indicators:

• easy physical labor- not lower than 14 ° С;
• average physical work - not lower than 12 ° С;
• hard physical work - not lower than 8 ° С.

With absence permanent places works located directly at doorways, admissible 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 intended for the localization of harmful substances carried away by convective jets, when a more complete cover of emission sources is impossible for technological reasons.

The panels are mounted to 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 suction... Devices that are designed to remove harmful secretions from the surface of the solution, when, according to the conditions of the technological process, it is impossible to create full shelters. Most often used in electroplating workshops.

Ejection

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

Calculation of industrial ventilation

The calculation and design of industrial ventilation depends on the following factors:

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

The standards are developed for each type of production and are indicated in specialized reference books.

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

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

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

In general, there will be few general indicators for the design of general ventilation of an industrial building.

The PROMVENTHOLOD company carries out work on the design of ventilation, air conditioning, refrigeration and other engineering systems. We are engaged in the design of engineering systems for objects of various purposes: retail, office, industrial premises, industrial enterprises, shopping and entertainment centers, healthcare and food industry facilities, clean rooms, cinemas, train stations, etc.

The main task is to create a microclimate in accordance with the requirements of technological processes, sanitary and hygienic standards, the conditions for finding people or storing goods according to the following parameters: humidity, temperature, air purity, as well as the mobility of air masses. Achievement of the required parameters is achieved due to the professionalism and experience of design engineers, competent calculation, reliable equipment, as well as the choice of installation and operating organizations. The design of ventilation and air conditioning sections, as well as other engineering systems, are interrelated processes that require adherence to the design sequence, taking into account a lot of nuances and relationships between related engineering sections: technology, water supply, sewerage, power supply, automation and the main sections: architectural and structural solutions.

Preparation project documentation performed by our company in accordance with the requirements of the RF Government Decree No. 87 of 2008, other applicable regulatory documents and technical regulations RF in the field of construction, as well as the requirements and recommendations of manufacturers.

First step

At the initial stage of any project, it is necessary to obtain technical task(TK). PROMVENTHOLOD specialists prepare a technical assignment in accordance with the requirements of the Customer and provide comprehensive support at all stages of its development and approval, namely:

• climatic and geographical features of the location of the object;
• drawings of floor plans of a building with a specification;
• the purpose of the existing premises;
• information on manufacturers (brands) of equipment.

Second phase

We proceed to the preparation of design documentation in close cooperation with specialists who develop architectural, construction and engineering sections of design documentation. The design of the heating, ventilation, air conditioning (HVAC) section is carried out taking into account the climatic characteristics of the construction area, functional purpose premises, standard air parameters and requirements of technical and technological specifications. Also, in the design process, the following parameters will be taken into account: insolation, thermal conductivity of enclosing structures, requirements technical conditions resource supplying organizations, customer requirements for energy efficiency, SanPin requirements.

Third stage

Calculation of heat losses, which are compensated by the heating system, calculation of heat gains, which are compensated by the air conditioning system, as well as indicators of the aerodynamics of ventilation systems (in order to correctly determine the size of the cross-section of the air ducts) and the noise level. Then the calculation of the routing (wiring) of pipelines of heating, air conditioning and air ducts (air ducts) is performed. Is being developed axonometric drawing ventilation and air conditioning systems. All these documents are approved by the Customer.

Fourth stage

The main equipment is being selected: a heating boiler, chillers, ventilation units, fan coil units, heating radiators, as well as auxiliary equipment: pumps, shut-off and control valves, connecting pipelines etc.

Fifth stage

A production task is being developed for assembly teams: assignments for general construction, plumbing, welding and electrical work.

Finishing design work The customer receives a set of documents including:

• diagrams of all systems with plans, sections and sections;
• specifications for the main and auxiliary equipment, and expendable materials;
• feasibility study of the choice of the main equipment;
• assignments for the installation of heating, ventilation and air conditioning systems, as well as assignments for specialists in related fields.

The PROMVENTHOLOD company develops projects of engineering systems of any complexity, including projects for ventilation, air conditioning, refrigeration and heating systems. In addition, we develop projects for the creation of server rooms and data centers.

Employees of the company in a short time will help to draw up technical specifications, carry out the necessary heat engineering calculations, will make a selection of equipment taking into account your wishes. Then you will be sent a detailed technical and commercial proposal, which will indicate the technical parameters of the equipment, prices, delivery times, deadlines for the design, construction and installation and commissioning works heating, air conditioning, ventilation and other engineering systems.

The cost of the project of a central air conditioning, ventilation and heating system depends on the prices for the brands of equipment you have chosen, as well as on technical parameters object. PROMVENTHOLOD specialists will offer you the most optimal equipment options at a price and offer favorable conditions for the design and installation of ventilation and central air conditioning systems.

PROMVENTHOLOD is official distributor and supplies equipment of both domestic and foreign brands. Full technical support, warranty and service maintenance... PROMVENTHOLOD is authorized service center of all manufacturers with whom it cooperates.

The design of any ventilation system, as a rule, begins with the calculation of the air capacity. First, you need to determine the parameters of air exchange and its frequency. The air exchange rate is the number of changes in the total volume of the air mass in the building per unit of time (cubic meters per hour). Air exchange is calculated for each room separately, and then summed up. For premises for various purposes, such as offices, retail or industrial premises, cinemas, air exchange rates may differ.

To create systems for a comfortable microclimate of objects for different purposes- administrative, office buildings, multi-storey residential buildings, hotels, cottages, buildings and structures for cultural and entertainment purposes (museums, theaters, clubs, exhibition halls), railway stations often use chillers (water cooling machines) in conjunction with fan coil units (fan coils). Such air conditioning systems go through all the indicated stages of engineering design. But there are also some peculiarities ...

A refrigeration center is usually called a complex of equipment ( refrigeration machines, chillers and auxiliary equipment) for the preparation and supply of refrigerant or liquid refrigerant to various consumers - refrigeration and air conditioning systems for various purposes. The location of refrigeration centers can be either in a separate room inside or outside the building. This section deals with the design of such complexes.

Designing air conditioning systems for server rooms and data processing centers (DPC) has its own characteristics. When calculating heat gains, it is necessary to take into account the significant heat release from equipment (servers, racks, power supplies, etc.). Further, depending on the principle of air cooling in precision air conditioner(direct, with an intermediate coolant, combined) and the presence of a free cooling mode are being developed circuit diagram placement of air conditioners and a drawing of the air conditioning system.

Creation of really comfortable and cozy atmosphere in the workplace not only increases productivity and efficiency labor process but also is a prerequisite, which is put forward by the sanitary authorities. Therefore, ventilation systems are just as important in production as the elements of a central heating system or electrical services. The installation of such systems is a rather complicated and time-consuming job, therefore, they usually do not do it with their own hands, but trust professionals with solid experience. In any case, knowing about the principles of operation, design and development will not hurt anyone.

Air conditioning and premises of various sizes in production are carried out using the most complex systems, including, in addition to the air duct, also various heaters, filters, coolers, recuperators, fans and other elements. Ventilation system, regardless of the type production process, area and size of workshops and air pollution, should perform the following functions:

• Providing fresh clean air to the employees of the enterprise.
• Removal of unpleasant and foreign odors, as well as dust from the room.
• An important function ventilation system is filtration from various harmful impurities that arise as a result of certain technological influences and conditions.

Sidebar: Important: In industrial and manufacturing workshops, mechanical and natural ventilation is used for normal air exchange. During design work, it is necessary to take into account the various regulations regulating the state of factory and factory workshops.

During the production process associated with the manufacture of pharmaceuticals or products from refined petroleum, toxic elements are released that pose a certain danger to human health, therefore the ventilation system must ensure their effective and immediate neutralization.

Only highly qualified specialists, certified engineers and professionals should be allowed to develop or in the production area. In this case, it is necessary to take into account climatic and weather conditions, the number of workers, the size of the premises, the peculiarities of production and many other nuances and peculiarities.

1. Elements of any ventilation system are air ducts, exhaust and supply devices, as well as equipment that helps to create a comfortable and cozy indoor climate (this includes humidity stabilizers, as well as air heaters and air conditioners).
2. For normal ventilation of various objects in industrial conditions, it is necessary to use such equipment that is capable of removing dust, aerosol and gas particles from the air that appear as a result of the operation of complex equipment.
3. Some industries (such as pharmaceutical or high-precision electronics) require the creation of specific working conditions, therefore, all kinds of additional elements, such as special filters and high power air conditioners.
4. According to the operating instructions for certain types of equipment, those shops and areas where vapors hazardous to human health may be present must be additionally equipped with extractor hoods, which are separated from the general workshop network.
5. Devices that carry out hygienic and sanitary control of ventilation systems are part of air exchange systems, and depending on their indications, special equipment can be connected that removes various toxic impurities and purifies the air.
6. During the design of ventilation systems, it is necessary to take into account such a parameter as the cost of operation. It is best if the hot air that leaves the room is used in special exchangers, and cold air is used to cool machine tools and other equipment.

Table: heat consumption of the ventilation system

Ventilation used in industry is classified into the following types:

1. General ventilation is responsible for the normal replacement of air masses in the room. The most typical example is a conventional axial fan, which is inserted into a wall or window duct. Based on such parameters as the length of the duct and the cross-section, the appropriate power of the equipment is selected.
2. (or individual type) - allows you to clean the air from various toxic impurities, smoke, heavy dust and other substances that can harm human health, directly in the workplace.
3. Emergency air purification from gas, smoke or all kinds of toxic impurities is resorted to only in force majeure cases, therefore, the standards here differ from those generally accepted in production and will not be considered in this context.

Ventilation is also mechanical and natural. Natural scheme carries out the removal and inflow of air masses by means of traction, which occurs due to the difference in temperature and pressure inside and outside the production room. The effective functioning of such a ventilation system is influenced by:

• The difference in ambient temperature inside the production hall and outside.
• Difference in atmospheric pressure near the exhaust outlet and near the floor in the room.
• The speed of movement of air masses in the street.

Varieties of the ventilation system

The natural ventilation and ventilation system is quiet, environmentally friendly and economical. However, changing weather conditions can have a very negative impact on its effectiveness. Mechanical ventilation is devoid of such a drawback, which is capable of moving the air flow through an air duct of any configuration and section at any distance. In such cases, additional equipment is often installed that heats the air, and also humidifies, dries or filters it, if necessary. Today, the most popular are combined ventilation systems, in which elements of both mechanical and natural systems are used.

To implement normal natural ventilation, there is no need to spend a lot of money, conduct electricity or buy optional equipment... Turning to professionals who will make accurate calculations and plans optimal ventilation in a specific production or industrial area, it is possible to solve the problem of ventilation and compensate for such a disadvantage as dependence on changes in wind speed and direction, pressure and temperature.

To implement mechanical ventilation of industrial and industrial premises, a fair amount of electrical energy is required, therefore this method is not always economically viable. The advantage of this ventilation method is the independence of air flows and temperature from conditions. environment... The air in such systems is often heated and cleaned or, if necessary, cooled. Today, the most popular is combined system ventilation, which combines elements of mechanical and natural ventilation methods.

The ventilation standards include certain provisions, according to which the ventilation system must be located absolutely in all production workshops and premises. Moreover, regardless of functional features occupied area and the number of employees on it. Capacities ventilation equipment should be enough for the fastest possible cleaning of the air in the room in the event of the release of harmful substances or smoke. The development of the project, according to which the operation of the ventilation system will be implemented in the future, should be professionals who are able to do this in full compliance with applicable laws, documents and regulations... During design it is necessary to take into account the following parameters:

• inside a workshop or production facility.
• Fire safety conditions.
• Air humidity indicators.
• The presence and number of toxic and poisonous substances that pollute the environment.
• Climatic features.
• Room size and functionality.

It is worth noting that providing each employee with air is the norm, the implementation of which is monitored by various authorities and services. The norm is thirty cubic meters per hour on an area less than or equal to forty square meters... For large industrial complexes, such standards are calculated in a separate order. When calculating technical characteristics ventilation systems should take into account the following nuances:

• The ventilation system should not be a source of noise, which is strongly emitted even during operation. technological equipment and machine tools. The noise level should be at a medium or low level, otherwise a long stay in the workshop will become problematic.
• In the event that the ventilation system has been installed for a long time, and has not been thoroughly cleaned for a long period of time, then it is most likely that it itself is the cause of increased pollution of the surrounding airspace. To ensure that the ventilation system does not act as a source of pollution, it is recommended to clean it at least several times a year.

The tasks of the supply-type ventilation system include compliance with sanitary and hygienic standards due to the assimilation of excess moisture, dilution of toxic secretions that can damage the human body and reduce the concentration of harmful impurities. All this allows the employee to be on own site in a comfortable environment that meets all established rules and regulations. In the event that indoors low temperature, then the supply-type ventilation system can solve this problem by heating the supply air masses.

The simplest device that is installed in various workshops and production facilities is a fan, which has an air outlet. Due to the fact that the amount of various harmful and toxic impurities at enterprises, as a rule, is higher than the norm, the use of only one ventilation system is not always effective. To maximize the safety of employees, modern enterprises use both a natural and a mechanical system.

In the modern market, there are a huge number of various ventilation systems that allow you to create the most safe and comfortable conditions labor. Widest choice devices that differ from each other both in functionality and in price, will satisfy the needs of even the most demanding customer. During the construction of a complex industrial ventilation system, it is necessary to establish how supply equipment which is the guarantor of delivery clean air into the space of the shops and premises of the plant, and special exhaust units... With their help, it is possible to remove air saturated with pathogenic bacteria, toxic substances, dust, smoke and other harmful elements from the workplace. It is selected based on the specifics of production.

They choose one or another variation of equipment on an individual basis, taking into account the differences and features that are inherent in a certain industrial or construction large object.

The ventilation system must have the following parameters:

• Profitability.
• Efficiency.
• Reliability.
• Payback speed.

Thanks to clean and cool air, you can achieve not only Have a good mood, health and efficiency of employees, but also low wear and tear of technological equipment and various instruments... It is economically feasible when drawing up a project to add a device that is connected to the ventilation system and provides a comfortable indoor climate.

To date, the most in the best way to control the parameters of the ventilation system is the use of automatic computerized systems that make changes to certain characteristics, based on data received from external sensors. Thus, it turns out to achieve maximum economy and efficiency in work.

Thanks to the use of supply or exhaust circuits, you can easily bring the humidity in the enterprise to normal, as well as neutralize, heat, cool, filter or humidify the air. A huge advantage forced ventilation is that its work is not influenced by external conditions and weather factors. Air removal and supply can be done from the required point. You can make accurate calculations of supply or exhaust ventilation and draw up a schedule of costs.

The operation of ventilation systems is influenced not only by the competent selection of equipment and installation, but also by the rarefaction of the atmosphere, the shape of the air inlets, the correct installation of filters, fans, air ducts and other elements. At enterprises, it is most advisable to install axial or radial blowers powered by electricity. Thanks to such a solution, you can easily provide employees with a clean airspace in the workplace, free from harmful impurities and toxic elements. For better filtration today, electrostatic precipitators and other components are often used, which can maximally protect even an environment saturated with aggressive chemical compounds and components.

Air conditioning in factories and industries allows you to achieve a normal microclimate, which is especially important for the optical industry, instrument making, the electrovacuum industry and other areas where maintaining a certain humidity in the room is very important point... For setting up and installing the ventilation system, it is best to contact professionals with experience and knowledge in their field.

Ready-made ventilation systems need periodic cleaning, because if the ducts are clogged, it becomes unsafe to be in the production hall or room due to the high concentration of dust particles and harmful elements... For maximum efficiency Today, various filters are used, made of felt, fabric, porcelain rings and all kinds of porous materials that perfectly absorb dust and toxic substances that can harm human health.

Features of equipment installation

During the installation of ventilation systems in factories and industrial facilities, it is necessary to take into account a huge number of features and nuances that directly affect the indicators of the durability of the structure and the efficiency directly during operation. That is why, for the installation of individual elements of the air exchange network, it is necessary to attract highly qualified specialists who have the appropriate knowledge and experience. It is also important to choose the right place for the installation of equipment such as filtration systems, fan units, heat exchangers and other units.

In industrial and industrial premises, they are usually fixed directly to the ceiling. If desired, they can be hidden using hanging decorative panels... In those premises that are used for commercial purposes, it makes sense to use ducts made of plastic or copper, which are reliable and durable and have an attractive appearance.

Currently, the following types of air ducts are used in construction:

• Tough. For their production, materials such as fiberglass, multilayer aluminum, galvanized and others are used. Of these elements, the installation of virtually the entire ventilation system is carried out. The only exceptions are special parts of a shaped sample, which are used for the device of branches, contours and turns. To transport air that contains various harmful impurities, it is worth using air ducts with thick walls.
• Flexible. Their main purpose is the communication of various sections and openings with the air ducts of the main. For the construction of a local ventilation system, the purpose of which is to clean the air in the immediate vicinity of the workplace, aluminum hoses are often used.

Installation of ventilation ducts in production and industrial premises is carried out in the following order:

1. To begin with, the parameters of the wall thickness and cross-section of the air channels are calculated, after which, based on the data obtained, the mass of each element of the ventilation system is calculated. Sometimes the installation of square ducts is not possible due to insufficient space. So when faced with a similar situation it is worth using rectangular ducts to solve the problem.
2. Then, at the joints, it is necessary to mark the fixation points of the air ducts. Thanks to this, you can easily calculate the required number of fasteners, brackets and other accessories. It is worth remembering that for fastening brackets it is undesirable to allow the occurrence of oscillations of long sections of the network directly during the passage of air through them. It is preferable to provide the structure with an excessive number of fasteners, since in this case they can withstand even an increased load without problems.
3. When the line channels have been installed, you can proceed with the installation of separate suction and spray devices. For such cases, it is recommended to use special hoses with flexibility and the desired cross-section.

conclusions

The installation and design of industrial ventilation systems is responsible and complex process. Finished project must comply with strict building codes and current regulations. The health of employees and the performance of the entire team directly depends on this.

Good ventilation is important for any building, but in the case of industrial facilities, it becomes especially important. The continuity of the production process, the productivity of employees, as well as ventilation systems are quite important for the operation of technological equipment and smooth operation all engineering systems of the building.

Our specialists carry out ventilation design at industrial facilities in full compliance with general construction, sanitary, industry norms and requirements.

Types of ventilation systems

Ventilation in industrial facilities is common, that is, general exchange, local. The first system covers the entire facility, and the second is located in places with a high degree of pollution or increased requirements for air purity (for example, in certain workshops).

According to the principle of operation, ventilation systems are divided into exhaust, supply and supply and exhaust.

Exhaust ventilation is often used in industrial facilities. It involves the installation of a ventilation duct system. In the absence of air flow in production facilities, the flow is carried out in a natural way (through windows, doors and cracks, draft), which does not have a beneficial effect on the health of employees.

When designing with special attention refer to technological process each enterprise separately. Our engineers together with the Customer prepare a technical assignment, only after signing it, they begin to work on the design of engineering systems.

The removal of polluted air through ventilation ducts is carried out using special equipment ( exhaust fans, umbrellas, local suction).

The exhaust ventilation system is the simplest, its device does not require large financial costs. It is necessary to install equipment that will ensure the release of exhaust air from the room.

The supply and exhaust system is the most efficient. Exhaust and supply ducts most often they work autonomously, each of them is equipped with fans, filters, automation and other equipment.

In many industrial facilities, there is a need not only to clean the air, but also to maintain a certain temperature. This can be important not only for the comfort of employees, but also to ensure necessary conditions performing a production process or storing finished products. In this case, air conditioning equipment is installed in conjunction with the ventilation system.

It is important to remember that the efficiency of the ventilation system depends a lot on how well the project was designed. Therefore, you should trust the design only to specialists who have impressive experience.

The efficiency of the systems is checked in accordance with the regulations:

SP 73.13330.2012. "Internal sanitary systems";

STO NOSTROY 2.24.2-2011. "Testing and adjustment of ventilation and air conditioning systems";

GOST 12.3.018-79 "Ventilation systems. Methods of aerodynamic testing ";

GOST R 53300-2009 “Smoke protection of buildings and structures. Methods of acceptance and periodic tests ";

SP 4425-87 "Sanitary and hygienic control of ventilation systems in industrial premises";

SanPiN 2.1.3.2630-10. "Sanitary and Epidemiological Requirements for Organizations Performing Medical Activities".

Reasons to contact us:

• Strict adherence to the terms specified in the contract.
• Experienced specialists who can handle the development of a project of any complexity.
• The design is carried out in accordance with regulatory requirements and current legislation.
• Integrated design of engineering systems
• Technical and designer supervision
• Over 15 years of experience in design
• An integrated approach, installation and service department

Provision of services for the development of ventilation systems projects by TEKHNOSTROYALYANS-VOSTOK LLC. 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 room (warehouse, workshop), but also on their safety. That is why a qualified selection of air purification plants in production building is a responsible decision that does not allow mistakes and miscalculations.

The engineering and design group of our company is always ready to inspect the object and, together with the customer, form the required technical task. The developed project of the ventilation system necessarily reflects:

• features of the production process of the enterprise;
• the number and location of jobs;
• imposed sanitary and hygienic requirements;
• the presence of climatic zones and their location;
• the architecture of the building in question;
• availability of operating climatic equipment.

Designing ventilation of an industrial building: features and varieties

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

1. supply (the equipment provides air supply to the building);
2. exhaust (forced removal of air masses);
3. supply and exhaust (combined).

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

In addition, the developed industrial ventilation systems can be:

• general purpose;
• local.

In the first case, used ventilation equipment provides for the maintenance of the same climatic conditions throughout the building. In the second, it is used for the 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;
• distribution of the supplied air;
• calculation of air ducts (shape, section of the line, branching, used material).

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

Ventilation system design from TEKHNOSTROYALYANS: why it is profitable

The staff of our company includes a special engineering and design group, which has been developing design documentation for this area for many years. Using the services of designers from TECHNOSTROYALIANS, the client receives the following benefits:

• operational development of the project for the air conditioning and ventilation system of industrial premises;
• guarantees of the quality and efficiency of the calculations provided;
• optimal prices for services;
• exact adherence to deadlines;
• favorable discounts.

Contact the TEKHNOSTROYALYANS company and get the opportunity to order the design of industrial ventilation of a building on favorable terms!