Composition of central air conditioning system

1. The central air conditioning system includes the main unit and the secondary system. It can be divided into full air system, full water system, air-water system, and refrigerant system according to the medium used to bear the indoor heat and humidity load. The concentration of air treatment equipment can be divided into centralized and semi centralized types. According to the source of the treated air, it can be divided into enclosed and direct systems

Flow type, mixed type (primary return air, secondary return air).

2. The cold water system consists of cooling vegetables, cooling water pipes, cold sweet water towers, and coolers. The purpose of the cold water circulation system is to exchange a large amount of heat energy inside the building, which is then transferred to the cooling water through the large refrigerant of the main unit. This causes the cooling water to rise and the refrigeration units to rise and fall back to each other

The cooling water is pressurized into the cooling tower (outlet) to exchange heat with the atmosphere, reduce the temperature, and then sent back to the main condenser (return water).

3. Wind collection section. The air conditioning system must use a portion of fresh outdoor air, namely fresh air. The intake of fresh air is mainly determined by the service purpose and hygiene requirements of the air conditioning system. The fresh air intake and the fresh air ducts and filters of the air conditioning system constitute the inlet part of the system.