Refrigeration machine and method for operating a refrigeration machine
A technology for refrigerators and refrigerants, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as damage, mechanical wear of compressors, weakening the economy of heat pumps, etc., to improve economy and reduce freezing. dangerous effect
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[0036] The refrigerating machine according to the invention shown in FIG. 1 , described here as a heat pump, comprises a closed circuit 10 with a refrigerant. An evaporator 12 , a compressor 14 , a condenser 16 and an electrically driven expansion valve 18 are arranged in succession in the refrigerant circuit 10 .
[0037] The evaporator 12 and the compressor 14 are connected to each other via an extraction line 20 . Since the compressor 14 is designed to compress only evaporated refrigerant and may be damaged by inadvertent leakage of liquid refrigerant, a liquid separator 22 in the suction line 20 is provided upstream of the compressor 14, which The liquid separator separates and collects liquid refrigerant that has not been fully evaporated in the evaporator 12 and / or has been liquefied in the extraction line 20 from the refrigerant flow.
[0038]A four-way switching valve 24 in the extraction line 20 is arranged upstream of the liquid separator 22 , and the four-way switc...
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