CASCADE REFRIGERATING MACHINE WITH COMPRESSOR THERMAL STABILIZATION SYSTEM Russian patent published in 2021 - IPC F25B7/00 F25B49/02 

FIELD: refrigerating equipment.

SUBSTANCE: invention relates to refrigeration engineering and can be used for cooling objects or maintaining their low temperature by obtaining cold at low temperature level (below 120 °C). Compressor thermal stabilization system comprises serially installed solenoid valve of thermal stabilization line, controlled by programmable control unit, check valve of thermal stabilization line, throttling device of thermal stabilization line. Inlet to the solenoid valve of the thermal stabilization line is located after the supercooler subcooler of the lower branch of the cascade, and the output is connected to the compressor of the lower branch of the cascade.

EFFECT: technical result is stabilization of temperature mode of compressor of cascade cooler bottom stage lower branch at operation in transient modes and in temperature control in automatic mode without external additional cooling devices.

4 cl, 3 dwg