Compressing freezer storage circuit and possess container, this which is used for the freezer storage unit for the container the gas refrigerant of operational mannered null low temperature

摘要

PROBLEM TO BE SOLVED: To provide a refrigerating circuit capable of preventing generation of water vapor due to melting of frost on an evaporator at the time of defrosting.;SOLUTION: The refrigerating circuit is provided with: a liquid injection solenoid valve 14 in the middle of a refrigerant pipe for returning a liquid refrigerant passing through a condenser 4 into a compressor 2; and a discharge temperature sensor 15 in the middle of a refrigerant pipe 55 connecting the discharge side of the compressor 2 and the inlet side of the condenser 4. At the time of defrosting, when the discharge temperature detected by the discharge temperature sensor 15 exceeds a predetermined value, the liquid injection solenoid valve 14 operates in the opening direction.;COPYRIGHT: (C)2007,JPO&INPIT