HIGH PRESSURE DROP CONTROL METHOD FOR UNIT, APPARATUS, AND AIR-CONDITIONING DEVICE

Title:

HIGH PRESSURE DROP CONTROL METHOD FOR UNIT, APPARATUS, AND AIR-CONDITIONING DEVICE

Document Type and Number:

WIPO Patent Application WO/2019/196479

Kind Code:

A1

Abstract:

Disclosed are a high pressure drop control method for a unit, an apparatus, and an air-conditioning device. The method comprises: monitoring an operating mode of the unit; obtaining, according to the operating mode, corresponding operating parameters; and adjusting the opening degree of an electronic expansion valve (EEV) according to the operating parameters. According to the present application, by detecting the corresponding operating parameters in different operating modes of the unit, and adjusting the opening degree of the EEV of indoor and outdoor units according to the operating parameters, an intermediate pressure of refrigerant circulation is changed, and it is ensured that a system has sufficient power to promote refrigerant circulation. The adverse effect of high drop of the indoor and outdoor units on refrigerant circulation is reduced, the performance of the unit is improved, and the flexibility of engineering installation is improved.

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Inventors:

SU YUHAI (CN)
XIONG JIANGUO (CN)
ZHANG SHIQIANG (CN)
JIAO HUACHAO (CN)
WU LIANFA (CN)
GAO HAN (CN)

Application Number:

PCT/CN2018/121225

Publication Date:

October 17, 2019

Filing Date:

December 14, 2018

Export Citation:

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Assignee:

GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)

International Classes:

F24F11/84; F25B49/00

Foreign References:

CN106196495A	2016-12-07
CN103712309A	2014-04-09
CN105928059A	2016-09-07
CN101451781A	2009-06-10
JP2015117854A	2015-06-25

Other References: