Refrigeration system with refrigerant pre-cooler

Details Refrigeration system with refrigerant pre-cooler Refrigeration system with refrigerant pre-cooler

F - Mech Eng,Light,Heat,Weapons

25

B

62/23

F25B 1/00 (2006.01) F25B 3/00 (2006.01) F25B 40/02 (2006.01)

Patent

CA 1253352

REFRIGERATION SYSTEM WITH REFRIGERANT PRE-COOLER ABSTRACT OF THE DISCLOSURE A refrigeration system is disclosed having greatly improved efficiency. The system includes a pre-cooler heat exchanger for sub-cooling the liquid refrigerant from the condenser to render the entire evaporator more effective for refrigeration purposes. The heat exchanger for pre-cooling the liquid refrigerant has one passage through which the hot liquid refrigerant flows and another passage, in heat exchange relation therewith, which is connected to receive a small flow of liquid refrigerant bled off from the main stream of the liquid refrigerant which refrigerant passes through an expansion valve or capillary tube to vaporize so that the liquid refrigerant is sub-cooled by the latent heat of vaporization of the vaporizing refrigerant. This heat exchanger is located between the condenser and the receiver or between the condenser and the evaporator in systems not having a receiver. The flow of the vaporized refrigerant used for cooling in the heat exchanger may flow through a cooling tube in the receiver and is connected to the return flow of vaporized refrigerant flowing from the evaporator to the compressor. - 1 -

498691

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