Title:
HEAT PUMP SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/103271
Kind Code:
A1
Abstract:
A heat pump system, which relates to the technical field of heat pump units. The heat pump system comprises an electromagnetic suspension centrifugal compressor (1) and further comprises a switching communication device (3) and a first electric valve (14); an exhaust pipe of the electromagnetic suspension centrifugal compressor (1) is connected to a first interface of the switching communication device (3) by means of a first unidirectional valve (2), and a suction pipe is connected to a third interface of the switching communication device (3); and the first electric valve (14) is arranged in parallel to the electromagnetic suspension centrifugal compressor (1). The heating function of an electromagnetic suspension centrifugal compressor unit is realized by means of the switching communication device (3); meanwhile, the configured first electric valve (14) is opened before start up of the electromagnetic suspension centrifugal compressor so as to adjust the pressure difference of a high pressure side and a low pressure side of the compressor; and the first electric valve is opened before closing of the compressor so as to reduce the shutdown pressure ratio so that the compressor may run smoothly.
Inventors:
ZHANG HONGLIANG (CN)
ZHANG JIE (CN)
ZHAO LEI (CN)
XIE JIPEI (CN)
LIU QIANKUN (CN)
XU ZHIQIANG (CN)
ZHANG JIE (CN)
ZHAO LEI (CN)
XIE JIPEI (CN)
LIU QIANKUN (CN)
XU ZHIQIANG (CN)
Application Number:
PCT/CN2018/123015
Publication Date:
May 28, 2020
Filing Date:
December 24, 2018
Export Citation:
Assignee:
QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
International Classes:
F25B30/06; F25B13/00; F25B41/20; F25B47/02; F25B49/02
Domestic Patent References:
| WO2017171076A1 | 2017-10-05 |
Foreign References:
| CN107166809A | 2017-09-15 | |||
| CN106403377A | 2017-02-15 | |||
| CN107621097A | 2018-01-23 | |||
| CN206037476U | 2017-03-22 | |||
| CN108534208A | 2018-09-14 |
Other References:
See also references of EP 3712541A4
Attorney, Agent or Firm:
BEIJING KANGSHENG INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
Download PDF:
Previous Patent: THREE-PHASE EFFICIENT OXYGEN SUPPLEMENT ARTIFICIAL WETLAND SYSTEM
Next Patent: DISPLAY PANEL AND DISPLAY DEVICE
Next Patent: DISPLAY PANEL AND DISPLAY DEVICE