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根据《中小型活塞式制冷压缩机试验方法》(JB772-65)规定:制冷压缩机产冷量试验用以下三种方法进行。1.具有第二制冷剂的电量热器法;2.液体载冷剂循环法;3.制冷剂蒸汽循环法(简称〈汽环法〉。第1、第2两种方法犹如一套常规使用的制冷系统,但为了稳定试验工况,制冷剂在蒸发器中的产冷量由外界供给的热量予以平衡。这两种试验装置的原理简单,容易理解。但是,在试验制冷量较大的压缩机时,外界的供热量需相应增加。例如。一台标准产冷量为20
According to the “small piston compressor test method” (JB772-65) provides: refrigeration compressor cooling capacity test using the following three methods. 1 with the second refrigerant charge calorimeter method; 2 liquid refrigerant circulation method; 3 refrigerant vapor circulation method (referred to as the first and second two methods as a routine use Of the refrigeration system, but in order to stabilize the test conditions, the refrigerant in the evaporator cooling capacity by the external supply of heat to be balanced.The two test device principle is simple and easy to understand.However, in the test of large cooling capacity Compressor, the external heat to be increased accordingly, for example, a standard production capacity of 20