Title:
MULTI-SPLIT AIR CONDITIONING SYSTEM AND START CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/103407
Kind Code:
A1
Abstract:
The present invention relates to the technical field of air conditioning, and in particular, to a multi-split air conditioning system and a start control method therefor, aiming at solving the problems that in the prior art, when the air conditioning system is started, small opening degree of expansion valves of inner and outer units affects the effect of an air conditioner and even causes an excessively low pressure of the system, and large opening degree cannot effectively avoid liquid slugging of a compressor. The start control method for the multi-split air conditioning system in the present invention comprises the following steps: periodically obtaining operating parameters of the compressor in the starting process of the multi-split air conditioning system; obtaining an operating mode of the multi-split air conditioning system, and calculating target opening values of the expansion valves according to the operating mode and the operating parameters; and adjusting the opening degree of the expansion valve on the outer unit side or the inner unit side according to the operating mode and the target opening values of the expansion valves. Compared with the method in the prior art for maintaining the fixed opening degree of the expansion valves in the starting process, in the present invention, the operating effect of the multi-split air conditioning system is guaranteed to the maximum extent under the condition of effectively preventing liquid slugging, and stable and reliable operation of the system is ensured.
Inventors:
ZHUO BAITIAN (CN)
SHI BIN (CN)
CHENG SHAOJIANG (CN)
ZHANG RUIGANG (CN)
WANG JUN (CN)
SHI BIN (CN)
CHENG SHAOJIANG (CN)
ZHANG RUIGANG (CN)
WANG JUN (CN)
Application Number:
PCT/CN2019/087030
Publication Date:
May 28, 2020
Filing Date:
May 15, 2019
Export Citation:
Assignee:
QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
International Classes:
F24F11/84; F24F11/00; F24F11/64
Foreign References:
| CN109631279A | 2019-04-16 | |||
| CN104930773A | 2015-09-23 | |||
| CN105864981A | 2016-08-17 | |||
| CN107642873A | 2018-01-30 |
Attorney, Agent or Firm:
HANRAY LAW FIRM (CN)
Download PDF:
Previous Patent: PIN, PIN COMBINATION STRUCTURE, PACKAGING BODY AND MANUFACTURING METHOD THEREFOR
Next Patent: BPI-FC FUSION PROTEIN AND USE THEREOF
Next Patent: BPI-FC FUSION PROTEIN AND USE THEREOF