CRYOGENIC HEAT PUMP AND USE THEREOF IN THE TREATMENT OF LIQUEFIED GAS

摘要

Cryogenic heat pump (10) for a liquefied gas treatment device, comprising, in closed circuit, at least one compressor (12), at least one expansion device (14), a cold-receiving first circuit (16) extending between said at least one compressor and said at least one expansion device, and a cold-transmitting second circuit (18) extending between said at least one expansion device and said at least one compressor, said closed circuit comprising a cryogenic fluid configured to be in a biphasic state in at least part of this circuit, the said cold-transmitting second circuit being configured to have an outlet temperature below -40°C.