The cooling water reduces the temperature of the refrigerant, the water flowing through the condenser is the cooling water, and the water flowing through the evaporator is the chilled water.
The condenser is to reduce the temperature of the refrigerant coming out of the compressor. The medium is water, and water cannot be used as a refrigerant. The refrigerants mainly include ammonia, carbon dioxide, sulfur dioxide, methyl chloride, freon, etc., and water is used as a cooling medium. agent.
Chilled water is to send the cold energy of the air conditioner into the room through pipes and water pumps, and then exchange it to the space by the fan coil unit of the room. Simply put, chilled water is a means of transport that transfers cold energy from the air-conditioning room to the room where it is used.
Cooling water is an air conditioner that generates a lot of heat through the pipes during the refrigeration process. The water pump is sent to the outdoor cooling tower for cooling, that is to say, the cooling water is the transportation tool that sends the heat generated by the host to the outdoor.
Condensed water is the cold condensed water produced from the air during the exchange of cold and heat by the room fan coil, which has nothing to do with the water in the system.
Chilled water/cooling water/condensed water can be understood together. In the water system, the host and the terminal exchange heat through the chilled water, the host and the cooling tower exchange heat with the cooling water, and the terminal air treatment equipment obtains the cold and heat of the chilled water. Condensation is generated by heat exchange with indoor air.
Chilled water - water that cools the evaporator, cooling water - water that cools the condenser, condensate water - water that condenses due to reduced temperature.
The water source water system is composed of water source water intake device, water intake pump, water treatment equipment, water pipeline network and valve accessories. Refrigeration conditions can be achieved by valve switching, even if the water source water enters the condenser, the refrigerated circulating water of the evaporator is connected to the user system. (On the contrary, it is heating condition)
Cooling water is generally realized by cooling water towers, generally reducing the water at room temperature of 35 ℃ to 40 ℃ to about 15 ℃ to 20 ℃. If a lower temperature is required, the cooling water tower cannot be achieved, and a refrigeration unit is required to achieve it.
The distinction between hot and cold water is relatively speaking, mainly the setting of a defined value of temperature for the demand environment (working condition).
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