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问题由来舟山某100吨氟利昂冷库经过一次例行压缩机检修保养后不到一个月就发现库房降温困难。其症状是库房温度一直降不下来,而且回汽压力也明显偏低(该系统压缩机未装低压保护装置)。
Problem origin Zhoushan, a 100-ton Freon cold storage after a routine compressor repair and maintenance less than a month to find the warehouse cooling difficulties. The symptom is that the temperature of the warehouse has not dropped down all the time, and the pressure of return steam is also obviously low (the system compressor is not equipped with low pressure protection device).