Title:
TWO-STAGE COMPRESSION AIR CONDITIONING SYSTEM AND AIR REPLENISHMENT CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/101658
Kind Code:
A1
Abstract:
Provided are a two-stage compression air conditioning system and an air replenishment control method therefor. The two-stage compression air conditioning system comprises a two-stage compressor (1) and a flash distiller (3). A first port (31) of the flash distiller (3) is connected to one extremity of a stop valve (2) via a first piping. The other extremity of the stop valve (2) is connected to a first air intake (11) of the two-stage compressor (1) via a second piping. The air replenishment control method comprises: acquiring a first temperature value Tm1 in the first piping, a median pressure value Pm, and a second temperature value Tm2 in the second piping; and controlling the stop valve (2) on the basis of the first temperature value Tm1, the median pressure value Pm, and the second temperature value Tm2. An air replenishment work state is determined by detecting refrigerant parameters of the first port (31) and of the first air intake (11), thus controlling the stop valve (2) to suppress backflow of replenished air.
Inventors:
ZHAO HUAN (CN)
TAN FENG (CN)
LI PENGFEI (CN)
LIANG YOUXUAN (CN)
TAN FENG (CN)
LI PENGFEI (CN)
LIANG YOUXUAN (CN)
Application Number:
PCT/CN2016/107254
Publication Date:
June 22, 2017
Filing Date:
November 25, 2016
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F25B49/02
Foreign References:
| CN105485989A | 2016-04-13 | |||
| CN205227959U | 2016-05-11 | |||
| CN105371514A | 2016-03-02 | |||
| CN205191969U | 2016-04-27 | |||
| CN103822418A | 2014-05-28 | |||
| CN200996753Y | 2007-12-26 | |||
| CN202692341U | 2013-01-23 | |||
| CN103574852A | 2014-02-12 | |||
| JP2005214442A | 2005-08-11 | |||
| EP0919410A2 | 1999-06-02 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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