JPS61285389A - Heat exchanger - Google Patents

Abstract

PURPOSE: To obtain the heat exchanger, prominent in heat exchanging performance, by a method wherein refrigerant is made to flow between inner and outer tubes while heat source fluid is made to flow through a heat exchanging chamber between the bundle of tubes, consisting of the inner and outer tubes, and the outer shell of the heat exchanger.

CONSTITUTION: In the heat exchanger for low temperature difference electric power generating plate or the like, the refrigerant 8, such as Flon or the like, flows into a refrigerant inlet chamber 6 through a refrigerant inlet port 9, passes through a space between the inner tube 2 and the outer tube 5 of a double tube A while being evaporated and flows out of an outlet port 10 through a refrigerant outlet chamber 7. On the other hand, the heat source fluid 11 flows directly into the het exchanging chamber 14 between the outer shell 13 of main body 1 of the heat exchanger and the bundle of tubes consisting of the outer tubes 5 from an inlet port 12, flows to a direction reverse to the flow of refrigerant 8 and flows out of an outlet port 15. Another heat source fluid 11 flows from the inlet port 16 into a heat source fluid inlet chamber 3, flows through the inner tube 2 into a direction reverse to the flow of refrigerant 8 and flows out of the outlet port 17 through an outlet chamber 4. Thus, the improvement of heat exchanging performance may be contrived.

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