JPS6414556A - Refrigerating apparatus - Google Patents

Abstract

PURPOSE: To accelerate separation by connecting a refrigerant separator having a function of facilitating passage of a refrigerant of specific type between a discharge side and a suction side of a compressor in a refrigerating cycle for sealing a plurality of types of the refrigerants, thereby eliminating and separating a restriction in a mounting unit of components of a separating circuit, and reducing in size and simplifying the circuit. CONSTITUTION: Refrigerant vapor compressed by a compressor 11 is cooled to be liquefied by a condenser 12, evaporated by an evaporator 14, and returned to the compressor 11. When a solenoid valve 19 is opened and a sub-throttle unit 18 are fully closed, a branched liquid refrigerant is introduced into a separator 10 and R-22 for easily transmitting a functional film 103 is returned to a suction side of the compressor 11 via the valve 19. Meanwhile, R-13B1 for scarcely transmitting the film 103 is stored in a reservoir 17. Accordingly, R-13B1 of the main circuit is lowered at its ratio, and R-22 ratio is raised. Thus, refrigerant composition of the main circuit can be varied in response to an object without necessity of a heater or the like. And, since there is no restriction in mounting components of the separator circuit, the circuit can be reduced in size and simplified.