Title:
CONTROL METHOD FOR COMBINED AIR CONDITIONING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/068257
Kind Code:
A1
Abstract:
A control method for a combined air conditioning system, aiming at solving the problems that existing air conditioning units are poor in modes of dealing with extremely high pressures of compressors, and adverse effects are easily caused on the refrigerating effects of the units. The combined air conditioning system can selectively use a refrigerant circulation loop and a ground cooling branch to jointly exchange heat with a secondary refrigerant circulation loop; when the outdoor temperature is greater than or equal to a preset outdoor temperature, the secondary refrigerant circulation loop is selectively communicated with the ground cooling branch according to the high pressure of the refrigerant circulation loop, so that a secondary refrigerant flows through the ground cooling branch in the circulation process to be cooled by means of an underground cold source, the ground cooling branch assists in refrigeration, the load of the refrigerant circulation loop is reduced, the high pressure of the compressor can be rapidly recovered to be within a normal pressure range, and then continuous and reliable refrigeration operation of the combined air conditioning system is effectively ensured so as to effectively meet the refrigeration requirement of a user.
Inventors:
ZHANG XIAOCHEN (CN)
SUN HUI (CN)
SUN HUI (CN)
Application Number:
PCT/CN2021/099549
Publication Date:
April 07, 2022
Filing Date:
June 11, 2021
Export Citation:
Assignee:
QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD (CN)
HAIER SMART HOME CO LTD (CN)
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
F24F11/00
Foreign References:
| CN112303827A | 2021-02-02 | |||
| CN103900178A | 2014-07-02 | |||
| CN101749804A | 2010-06-23 | |||
| JP2012137290A | 2012-07-19 | |||
| CN204063300U | 2014-12-31 | |||
| CN204880484U | 2015-12-16 | |||
| CN201368551Y | 2009-12-23 |
Attorney, Agent or Firm:
HANRAY LAW FIRM (CN)
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