Title:
DUAL COLD SOURCE AIR SOURCE HEAT PUMP UNIT WITH FULL HEAT RECOVERY
Document Type and Number:
WIPO Patent Application WO/2022/262674
Kind Code:
A1
Abstract:
Disclosed is a dual cold source air source heat pump with full heat recovery, which belongs to the technical field of heat pump machinery. The dual cold source air source heat pump with full heat recovery comprises a compressor (1), a four-way reversing valve (2), a combined water-cooled condenser (3), a shell-and-tube heat exchanger (4), a finned heat exchanger (5), a first check valve (6), a second check valve (7), a first solenoid valve (8), a second solenoid valve (9), a first throttle valve (10), a second throttle valve (11), a gas-liquid separator (12), a cooling tower (13), a cooling water pump (14), a waterway check valve (15) and a waterway valve set (18), connected into a cooling loop. By means of controlling states of the four-way reversing valve (2), the first solenoid valve (8), the second solenoid valve (9), and the waterway valve set (18), and controlling water flow states in the combined water-cooled condenser (3) and the shell-and-tube heat exchanger (4), it is possible to implement switching among five functions and operating modes: cooling, cooling with full heat recovery, heating, water heating, and both heating and water heating. All-year cooling, heating, and sanitary or industrial hot water requirements of conventional building or industrial projects are resolved by means of full heat recovery.
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Inventors:
ZHANG LIBIAO (CN)
TANG JINJUN (CN)
HAN WEIDA (CN)
JIN WUHUI (CN)
LIANG SHUCHENG (CN)
GU JUNFENG (CN)
ZHANG JIALI (CN)
TANG JINJUN (CN)
HAN WEIDA (CN)
JIN WUHUI (CN)
LIANG SHUCHENG (CN)
GU JUNFENG (CN)
ZHANG JIALI (CN)
Application Number:
PCT/CN2022/098392
Publication Date:
December 22, 2022
Filing Date:
June 13, 2022
Export Citation:
Assignee:
ZHEJIANG KING CO LTD (CN)
International Classes:
F25B29/00; F24F12/00; F25B30/02; F25B41/20; F25B41/30
Foreign References:
| CN113446754A | 2021-09-28 | |||
| CN101504213A | 2009-08-12 | |||
| CN209689228U | 2019-11-26 | |||
| CN112146301A | 2020-12-29 | |||
| CN103615836A | 2014-03-05 | |||
| CN108375235A | 2018-08-07 | |||
| CN110513795A | 2019-11-29 | |||
| US20100000709A1 | 2010-01-07 |
Attorney, Agent or Firm:
ZHEJIANG HANGZHOU JINTONG PATENT OFFICE CO., LTD. (CN)
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