REFRIGERATING PLANT Russian patent published in 1998 - IPC

FIELD: refrigerating engineering. SUBSTANCE: refrigerating plant uses a compressor, condenser, regulating valve, it has also a cylindrical hydrocyclone which provides for separation of light fraction (oil) from heavy fraction (refrigerant). In addition the plant uses a regenerative heat exchanger and a heat exchanger-evaporator for final evaporation of oil from oil-refrigerant mixture that are connected in succession and installed between the condenser and regulating valve. Besides, the plant has another regulating valve used to reduce pressure of oil and refrigerant mixture down to the suction pressure, which is installed between the heat exchanger - evaporator and cylindrical hydrocyclone. EFFECT: improved heat exchange and enhanced reliability. 1 dwg