Title:
HEAT PUMP SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/223529
Kind Code:
A1
Abstract:
The present invention belongs to the technical field of heat pump applications, and particularly relates to a heat pump system. In the heat pump system provided by the present invention, a first end of a first three-way valve is in communication with a high-pressure outlet of a two-stage compressor; a first end of a second three-way valve is in communication with a low-pressure inlet of the two-stage compressor; a first one-way valve and a second one-way valve are provided in a refrigeration circulation pipeline; and a third one-way valve and a fourth one-way valve are provided in a heating circulation pipeline. In this way, by adjusting the first three-way valve and the second three-way valve, a refrigerant flowing out from the high-pressure outlet of the two-stage compressor can first enter a first heat exchanger and then enter a second heat exchanger, or first enter the second heat exchanger and then enter the first heat exchanger, thereby achieving the switching between a refrigeration mode and a heating mode of a heat pump system which uses a carbon dioxide refrigerant.
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Inventors:
REN TAO (CN)
CHAI TING (CN)
SONG QIANG (CN)
LI YINYIN (CN)
WANG BING (CN)
SUN HUI (CN)
CHAI TING (CN)
SONG QIANG (CN)
LI YINYIN (CN)
WANG BING (CN)
SUN HUI (CN)
Application Number:
PCT/CN2021/082102
Publication Date:
November 11, 2021
Filing Date:
March 22, 2021
Export Citation:
Assignee:
QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
F25B30/02; F25B41/20; F25B41/34; F25B41/40
Foreign References:
| CN111623553A | 2020-09-04 | |||
| CN112032884A | 2020-12-04 | |||
| CN107906777A | 2018-04-13 | |||
| CN102853579A | 2013-01-02 | |||
| CN109916109A | 2019-06-21 | |||
| CN107990581A | 2018-05-04 | |||
| CN210463643U | 2020-05-05 | |||
| JPS57161435A | 1982-10-05 | |||
| US4893476A | 1990-01-16 |
Attorney, Agent or Firm:
HANRAY LAW FIRM (CN)
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