Title:
DUAL-TEMPERATURE DUAL-FLASH AIR-CONDITIONING REFRIGERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/143244
Kind Code:
A1
Abstract:
Provided by the present application is a dual-temperature dual-flash air-conditioning refrigeration system. The dual-temperature dual-flash air-conditioning refrigeration system comprises a compressor that has a high-temperature compression chamber, a low-temperature compression chamber, and an auxiliary compression chamber, wherein exhaust gas from the low-temperature compression chamber is discharged by means of a first exhaust pipe, and exhaust gas from the auxiliary compression chamber is mixed with exhaust gas from the high-temperature compression chamber and then discharged by means of a second exhaust pipe; on a first flow path of a refrigerant, a first throttling device, a first flasher, a high-temperature evaporator, a second flasher, a second throttling device, and a low-temperature evaporator are arranged in sequence along the direction of the refrigerant flowing to the compressor; a condenser is provided on a heat release branch; and at the same time, according to an outdoor environment, a control valve is set to select whether to use a supplementary air branch. Compared to dual-temperature systems in the prior art, the present system may not only improve the cooling and heating capacity and energy efficiency, but also make the system adapt to a wider range of working conditions. The present system has an excellent system performance in extreme severe environments such as high-temperature refrigeration and low-temperature heating.
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Inventors:
HUANGFU QIJIE (CN)
LIANG XIANGFEI (CN)
ZHENG BO (CN)
HUANG MINGYUE (CN)
LIANG XIANGFEI (CN)
ZHENG BO (CN)
HUANG MINGYUE (CN)
Application Number:
PCT/CN2020/122493
Publication Date:
July 22, 2021
Filing Date:
October 21, 2020
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F24F5/00; F24F12/00; F24F13/30; F25B13/00; F25B39/02; F25B41/20; F25B49/02
Foreign References:
| CN111237928A | 2020-06-05 | |||
| CN107860151A | 2018-03-30 | |||
| CN107576090A | 2018-01-12 | |||
| JP2011174672A | 2011-09-08 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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