Waste heat recovering device

Details Waste heat recovering device Waste heat recovering device

1985-01-04

1986-09-02

Bennett, Henry

Power plants

Motive fluid energized by externally applied heat

418 85, 418100, 62 83, 622386, 237 121, F01K 2700

Patent

active

046088296

ABSTRACT:
A heat recovering device comprising an oil injection type screw expander having its output shaft connected to a load, such as a generator, an evaporator using waste heat as a heat source to evaporate a working medium so as to produce working medium vapor to be fed to the expander, a condenser for condensing the working medium vapor discharged from the expander, a working medium circulating pump for circulating the working medium within a system comprised of the condenser, evaporator and expander, an oil circulating pump for feeding oil to the expander, and a heater for heating oil to be fed to the expander to a higher temperature than the working medium vapor temperature. The device is characterized in that the heated oil is injected into the expander in such a manner that the working medium vapor and the heated oil come in direct contact with each other in the expander, thereby superheating the working medium vapor.

REFERENCES:
patent: 2760355 (1956-08-01), Swart

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