The design of forced air heating
For ventilation systems of large enterprises or large offices, as well as the premises of shops, cafes, impressive private cottages should be competent to do the project. The need for draft ventilation caused by the need to minimize the costs in the operation of facilities.
Supply and exhaust ventilation. Types of ventilation systems
Depending on the requirements of the different rooms, forced-air ventilation is classified by the configuration and functional features.
The ventilation system will provide the supply air purification by filtration, its heating, cooling, humidification and sometimes
The system of ventilation with heat recovery
The main function of heat recovery ventilation is to provide a fresh and at the same time, the warm air in the cold season, and cold - in the hot season.
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This system is designed so that in winter the flow of warm exhaust air is not just discharged to the outside, and passes through the heat exchanger unit and its heat to the incoming cold air. As a result, the room is saturated with fresh, but warm air. In summer time the process is reversed, wherein the incoming air already cooled. Wherein the setting circuit is such that both the flow (inbound and removable) are not mixed with each other.
The operating principle of heat exchanger heated
heat recovery process is provided by a special device - heat recovery. There are two types of heat recovery: rotary and plate. The plate heat exchanger includes ventilation projects in the region, where winters are not as harsh. Such a device is economical in cost and copes with heat at temperatures below zero to 15 degrees. For ventilation systems used in areas with more cold winters used rotary devices. They are more expensive, but effective and pay for themselves by saving on space heating.
System ventilation with heat recovery is widely used on various objects: houses, country houses, offices, a network of hotels and restaurants, sports complexes, industrial building.
Heat exchanger is easy to install in the wall hole home
Systems of supply and exhaust ventilation with air-conditioning
Supply and exhaust ventilation with air-conditioning combines the ventilation system, and air conditioning in a heat-insulated box with built-in controller. Such ventilation provides direct flow supplying heated or cooled air. It has several modes of ventilation and air conditioning facilities, which are installed automatically. This is due to the regulators, who check the state of the climate in the room and, according to it, is assigned to one or the other mode.
Scheme combined supply and exhaust system with ventilation and air-conditioning
Installation of ventilation with air-conditioning with high productivity and have a number of significant advantages:
- there is no need for external piping networks and remote units;
- insignificant degree of noise;
- small size and weight;
- ease of management.
Automation allows you to make settings so that the user does not need to change the adjustment throughout the operation of the unit regardless of the season.
The cleaned air - the guarantee of health and comfort
a forced ventilation cooling system
Supply and exhaust installation can be used for effectively cooling air in a hot summer period. Such installations are additionally equipped with various kinds of equipment for cooling:
- water cooling unit;
- condensing unit;
- block combination chiller and heat pump (chiller fan coil system).
One of the most used methods of cooling ventilation in connection to a cold water supply, by which is cooled to the desired temperature of supply air stream. Such systems are particularly rational for large objects or environments where products to be stored, and used in homes and offices.
Automatic control of ventilation system makes it easy to create comfortable living conditions
Systems obshcheobmennoj ventilation
General ventilation is used in the case where formed indoor moisture, heat, gases, vapors, odors, are distributed throughout the room. The draft quantity is calculated exhaust (exhaust) air which would be provided with health indicators inhaled air man.
Traditionally extracted air volume equal to the volume of the supply. However, when hazardous occupations drawn larger volume for blocking propagation of harmful contaminated flow throughout the room. Then the missing amount of air is compensated by the inflow (paging) from the surrounding, cleaner, premises or by opening windows and doors.
example of arrangement ventilation in bathrooms
If the room there is a shortage of heat exchange ventilation is arranged by a mechanical process, and heating the entire supply air flow. In addition, the outside air is subjected to purification.
One simple way of general ventilation is a fan for use ventilation. It is mounted in the window opening or bore path wall. Such an assembly allows to extract air from the nearest contaminated zone for general ventilation.
Thanks to the ventilation in the kitchen, you can quickly get rid of unpleasant odors
Useful advice!With the fan air handling unit can significantly increase air velocity output contaminated with harmful substances.
If production in the workshop are allocated harmful heavy gases, the project proposes to make exhaust ducts on the floor or in underground ducts. In such areas, where it is impossible to localize the harmful emissions, use general dilution ventilation system.
In hazardous occupations recommended to use several kinds of ventilation and air purification
Supply and exhaust ventilation. How do the calculation, assembly and installation
Parameters of ventilation calculated by reference to the internal volume of the entire premises. Having considered the volume of all rooms, indicators summarize. According to the norms for two to three hours of air in the room must be completely renewed. The passport data of the fans know their performance. And it subtract from 50 m³ (lost during filtering and displacement of the duct).
Further, the design of ventilation made. The project should be taken into account the range of room arrangement, where the process flow will be slowed down (to 18%) than in the room, where the input.
Ventilation in the office or your own home, you can build and install your own. For the project it is important to calculate all parameters of the installation.
The system of ventilation with heating in a private house
For example, if the volume of the entire room is 1,000 m³, while standard air flow is approximately 500 m³ / hour. To achieve such an indicator can, by applying an appropriate diameter pipe duct together with power fans.
must be make the circuit of ventilation so that the air intake grille and the fan mounted on the north side. After the fan filter set. Collecting system, with the main duct outlets arranged in each separate room. As the main use of the duct unit can be an ordinary refrigerator, where the heating or cooling will occur. In the summer when the unit is air cooled, and during the cold season you can use the heater, which will give off heat to the supply air. can be fridge place the UV lamp for further processing outside air.
Ventilation systems are selected based on the needs of the premises
Useful advice!It is necessary to emphasize the fact that when using the additional elements of ventilation, air flow and speed will change in the smaller side.
Depending on needs, supply and exhaust ventilation may be supplemented by a variety of devices. The essential is competent placement of input supply and output used air.
Repair and maintenance of ventilation systems
Malfunctions in the system of ventilation usually occur due to the incorrect operation, so you should carry out repairs and technical service equipment. service system basically is to clean or replace the filters.
For repair and maintenance of the ventilation system better involve experts
Current repair ventilation is performed through replacement or repair of simple blocks and individual parts. Depending on the fault in the connections, repair them can be done by using a soldering iron tube or sealant.
If the system will be detected serious damage or failure, it is recommended overhaul. To perform qualitative overhaul specialists involved professionals.
Useful advice!Timely replacement of filters, as well as the performance of the required maintenance of the fan ventilation contribute to the smooth and continuous operation of the plant.
To the ventilation system working properly, their servicing should be carried out regularly and change filters
With self-assembly it is necessary to provide the location of the elements of the duct system, convenient for production repair and maintenance of ventilation. After repairs, check the tightness of all the structures that guarantee the correct operation of the ventilation system.
Properly designed and installed by supply and exhaust ventilation system will help get rid of the lack of fresh air and take out unwanted odors.
