Title:
GAS HEAT PUMP AIR-CONDITIONING SYSTEM HAVING NON-STOP DEFROSTING
Document Type and Number:
WIPO Patent Application WO/2020/177275
Kind Code:
A1
Abstract:
A gas heat pump air-conditioning system that has non-stop defrosting, comprising a refrigerant circulation circuit composed of a compressor (1), an oil separator (2), a four-way valve (3), an indoor unit heat exchanger (4), an outdoor unit heat exchanger (7) and a gas-liquid separator (8) that are sequentially connected. The compressor (1) is connected to a gas engine (9) by means of a belt. A cooling water tank (10) is provided outside of the gas engine (9), and the cooling water tank (10) forms a cooling water circulation circuit by means of a water pump (12) and a heat dissipator (11). The present system further comprises an auxiliary evaporator (14), one refrigerant port of which is simultaneouly connected to the four-way valve (3) and the gas-liquid separator (8), and the other refrigerant port of which is connected onto a pipeline between a second end of the indoor unit heat exchanger (4) and a first end of the outdoor unit heat exchanger (7). Two ends of the water path of the auxiliary evaporator (14) are connected to two ends of the heat dissipator (11) respectively, and the first end of the outdoor unit heat exchanger (7) is connected to an outlet of the oil separator (2).
Inventors:
CHEN CHANGRUI (CN)
YANG YAHUA (CN)
YANG BING (CN)
YANG YAHUA (CN)
YANG BING (CN)
Application Number:
PCT/CN2019/100244
Publication Date:
September 10, 2020
Filing Date:
August 12, 2019
Export Citation:
Assignee:
NANJING TICA CLIMATE SOLUTIONS CO LTD (CN)
International Classes:
F25B47/02; F25B13/00
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Attorney, Agent or Firm:
NANJING TIANHUA PATENT AGENT CO., LTD. (CN)
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