Circulation type super low temperature air cooler
An ultra-low temperature, cooling fan technology, applied in refrigerators, refrigeration and liquefaction, lighting and heating equipment, etc., can solve the problems of high energy consumption, evaporator frosting, and unsatisfactory effect, and achieves compact structure and high output. The effect of smooth wind and stable work
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[0013] Referring to FIG. 1 , the present invention is a circulating ultra-low temperature air cooler, which is mainly composed of a single-stage compression refrigeration system, a cascade refrigeration system, an air filter 20 and a fan 21 . The single-stage compression refrigeration system is mainly composed of a refrigeration compressor I1 , a condenser 2 , a dry filter 3 , a liquid receiver 4 , a throttle valve 5 and an evaporator 6 . Refrigeration compressor I1, condenser 2, dry filter 3, liquid receiver 4, throttle valve 5 and evaporator 6 are sequentially connected with copper tubes to form a strictly closed loop I, pressure test, leak detection, vacuuming Finally, a certain amount of refrigerant I is charged to form a single-stage compression refrigeration system.
[0014] The cascade refrigeration system is mainly composed of refrigeration compressor II7, condenser 8, dry filter 9, liquid receiver 10, throttle valve 11, evaporative condenser 12, refrigeration compress...
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