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Title:
SINGLE-WORKING MEDIUM COMBINED CYCLE HEAT PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/072990
Kind Code:
A1
Abstract:
A single-working medium combined cycle heat pump device, relating to the technical field of refrigeration and heat pumps. A compressor (1) is provided with a circulating working medium channel to be communicated with a heater (6) and then two paths are formed - a first path is communicated with a heat regenerator (9) by means of an expander (2) and a second path is communicated with a second compressor (3) by means of a second heater (7); the second compressor (3) is further provided with a circulating working medium channel to be communicated with the heat regenerator (9), and then the heat regenerator (9) is further provided with a condensate pipeline to be communicated with an evaporator (8) by means of a throttle valve (4); the evaporator (8) is further provided with a circulating working medium channel to be communicated with the heat regenerator (9) by means of a third compressor (5); the heat regenerator (9) is further provided with a circulating working medium channel to be communicated with the compressor (1); the heater (6) and the second heater (7) are separately provided with a heated medium channel to be communicated with the outside; the evaporator (8) is further provided with a low-temperature heat medium channel to be communicated with the outside; the expander (2) is connected to the compressor (1) and transmits power. The single-working medium combined cycle heat pump device is thus formed.

Inventors:
LI HUAYU (CN)
LI HONGRUI (CN)
Application Number:
PCT/CN2020/000254
Publication Date:
April 22, 2021
Filing Date:
October 16, 2020
Export Citation:
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Assignee:
LI HUAYU (CN)
International Classes:
F25B30/02
Foreign References:
CN106225321A2016-12-14
US4528823A1985-07-16
CN108662809A2018-10-16
CN107893685A2018-04-10
CN205245610U2016-05-18
JPH03125863A1991-05-29
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