Title:
MULTI-SPLIT SYSTEM WITH DOUBLE AIR-INJECTION ENTHALPY-INCREASING COMPRESSORS
Document Type and Number:
WIPO Patent Application WO/2021/103465
Kind Code:
A1
Abstract:
Disclosed is a multi-split system with double air-injection enthalpy-increasing compressors. The multi-split system comprises two air-injection enthalpy-increasing compressors (1, 2). Exhaust ports of the two compressors (1, 2) are connected in parallel by means of an oil separator (3), and then connected to a port D of a four-way valve (5); a port C of the four-way valve (5) sequentially passes through an outdoor heat exchanger (6), a control system and an indoor heat exchanger (16), and then is connected to a port E of the four-way valve (5); a port S of the four-way valve (5) passes through a gas-liquid separator (19) and then is connected to air suction ports of the two compressors (1, 2) respectively; the control system comprises a first plate heat exchanger (17) and a second plate heat exchanger (18); main side inlets of the two plate heat exchangers (17, 18) are mutually connected in parallel, and then are connected to the outdoor heat exchanger (6) after passing through a third electronic expansion valve (7); and main side outlets of the two plate heat exchangers (17, 18) are mutually connected in parallel and then are connected to the indoor heat exchanger (16). The multi-split system is rational in terms of design and high in terms of reliability, and the double-plate heat exchanger structure is used, such that the heat exchange amount is increased, the control precision and the air injection effect of the compressors are improved, and the overall performance of the system is improved.
Inventors:
YANG YAHUA (CN)
FANG JIE (CN)
YI BO (CN)
FANG JIE (CN)
YI BO (CN)
Application Number:
PCT/CN2020/093095
Publication Date:
June 03, 2021
Filing Date:
May 29, 2020
Export Citation:
Assignee:
NANJING TICA CLIMATE SOLUTIONS CO LTD (CN)
International Classes:
F25B13/00; F24F1/0003; F25B41/20
Foreign References:
| CN110925874A | 2020-03-27 | |||
| CN207379106U | 2018-05-18 | |||
| CN105020950A | 2015-11-04 | |||
| CN107906778A | 2018-04-13 | |||
| CN109556210A | 2019-04-02 | |||
| CN106352572A | 2017-01-25 | |||
| CN203837138U | 2014-09-17 | |||
| JP2001317830A | 2001-11-16 | |||
| US20160123640A1 | 2016-05-05 |
Attorney, Agent or Firm:
NANJING TIANHUA PATENT AGENT CO., LTD. (CN)
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