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Freezer is a kind of mechanical equipment that uses a compressor to change the pressure of the refrigerant gas to achieve low temperature refrigeration. The compressor used is different from the general air compressor because of the different conditions of use and the different working medium of compression. According to the difference in the structure and working principle of the refrigerator, it is similar to the air compressor, and can also be divided into several different forms such as piston type, screw type, centrifugal type. The refrigerator is one of the most important components of the compression refrigeration equipment. The refrigerator is made of compressor, condenser, evaporator, filter dryer, expansion throttle valve of these five parts in series, which is filled with the right amount of refrigerant by the electrical appliance according to the needs of the environment to control the operation of the compressor to achieve the purpose of refrigeration heat transfer.
There are two kinds of chillers: water-cooled and air-cooled.
Water-cooled refrigeration effect is better, but the need for cooling water, air-cooled flexible and convenient, no cooling water, suitable for water shortage areas or mobile occasions. The working medium of the refrigerator is the refrigerant that is responsible for the task of transferring heat in the refrigeration system. The commonly used refrigerants are: Freon, ammonia, lithium bromide, chloromethane, etc. Among them, freon according to its gasification temperature and chemical formula of different fluorine 11(R-11), fluorine 12(R-12), fluorine 13(R-13), fluorine 21(R-21), fluorine 22(R-22), fluorine 113(R-113), fluorine 114(R-114), fluorine 142(R-142) and so on. The refrigerants can be used in refrigeration systems with low pressure (condensing pressure less than 0.3-0.3MPa) high temperature (evaporation temperature greater than 0℃), medium pressure (condensing pressure 1-2MPa) medium temperature (evaporation temperature 0-50 ℃) and high pressure (condensing pressure greater than 2MPa) low temperature (evaporation temperature less than -50℃).
Industrial air conditioning, chemical fiber industrial air conditioning, chemical fiber industry refrigeration ,textile industrial air conditioning , dust-free workshop cooling, ventilation pipeline, cooling tower, freezer and other air conditioning units and accessories.
Jiangsu Jincheng Air Conditioning Engineering Co., Ltd. is a comprehensive manufacturer of special air-conditioning equipment design, production, installation, and commissioning of clean room, electricity, tobacco, civil air defense engineering, medical clean room, clean room, electricity, tobacco, civil air defense engineering, medical clean room. Mainly produce JCZK combined air conditioning unit, cooling tower, glass steel ventilated galvanized sheet pipe, stainless steel pipe, polyurethane ventilation pipe and air conditioning accessories, Jincheng air conditioner is wide, the type, the unique model, superior performance, and user Favused.
