Do you know the main function of each functional section of the combined air conditioning unit?

Author : sherry

Update time : 2020-11-05 14:27:58

1.Return air section, the return air section is used to connect the return air duct, and the multi leaf air volume regulating valve is installed at the top or side of the section.
2. Fresh air section or new return air mixing section. The fresh air section is used to connect the fresh air duct. The fresh air inlet has two forms of top air inlet and side air inlet, and is equipped with multi leaf air volume regulating valve.
3. Primary filter section, which is equipped with flat filter or bag filter with non-woven fabric as filter material, is used to filter dust and solid floating objects in the air inlet, and keep the coil changing coil clean.

Steam heating section
4. The heating section can be used as preheating section and reheating section, while the electric heating section is mostly used for constant temperature and humidity air conditioning units.
5. In the surface cooling section, there are finned tube heat exchanger condensate trays in the surface cooling section. In order to prevent the treated air from bringing the condensate on the surface of the surface cooler into the air supply pipe, which will affect the cooling effect of dehumidification and cooling, the surface cooler is equipped with a special water baffle to become the cooling water retaining section.
6. Surface cooling heating section, in which the surface heat exchanger can be used in both winter and summer.
7. Water spraying section. The box of water spraying section can be made of glass fiber reinforced plastic or steel plate lined with glass fiber reinforced plastic, and integrated with the water tank.
8. humidifying section, commonly used dry steam humidifier, high pressure spray humidifier wet film humidifier.
9. Return fan section, double fan system has return fan section.
10. Return air regulation section, double fan system has return air regulation section.
11. Forced draft fan section, the forced draft fan section is equipped with double inlet air separation fan, the outlet of the fan has two forms of horizontal and vertical upward, and the lower part of the fan is also equipped with damping device.
12. The air supply section, which is set behind the fan section, is used to adjust the direction of the air supply outlet and is connected with the air supply duct. The air valve is installed at the interface for adjustment.
13. Secondary return air section, the top of which is equipped with secondary air return outlet and air volume regulating valve.
14. Medium efficiency filter or sub high efficiency filter section, which is usually equipped with plate filter or bag filter with non-woven fabric as filter material. Sub high efficiency filter is usually equipped with glass fiber as filter material.
15. Anechoic section, which is equipped with plate muffler or orifice muffler, is used to reduce the noise of air flow.
16. In the middle section, there is no air handling equipment installed in the middle section. It is set to provide internal maintenance space for some functional sections. The access door for personnel access shall be set on one side of the operation surface.
17. Energy recovery section. Some combined air conditioning units are equipped with energy recovery section. This section makes the fresh air and exhaust air cross flow through the plate fin energy recovery device for heat exchange, so as to recover sensible heat energy.

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