Patent ID: 8893520

Claim:
A refrigeration circuit having a mono- or multi-component refrigerant circulating therein, the refrigeration circuit enabling an overcritical operation, the refrigeration circuit, in the direction of flow, comprising: a condenser/gas cooler; an intermediate relief device; a collecting container; a refrigerating relief device connected downstream of the collecting container; an evaporator connected downstream of the refrigerating relief device; and a compressor unit connected to the evaporator by a suction line, wherein gas space of the collecting container is connected or connectable by a connection line to an input of the compressor unit, wherein the connection line joins into the suction line at a position before the compressor unit, wherein the collecting container is further connected to at least one freezing consumer having a freezing relief valve connected between the collecting container and the at least one freezing consumer, and a deep-freeze compressor unit including an inlet side and an outlet side, wherein the inlet side of the deep-freeze compressor is connected to the at least one freezing consumer and the outlet side is connected to the input of the compressor unit, and wherein a heat-reclaim heat exchanger, provided to transfer heat to a fluid for further use, is arranged in at least one of the lines between the compressor unit and the condenser/gas cooler, between the condenser/gas cooler and the intermediate relief device, between the collecting container and the refrigerating relief device, and between the deep-freeze compressor unit and the compressor unit.