Title:
ANTI-SLUGGING CONTROL METHOD AND CONTROL APPARATUS FOR AIR-CONDITIONING SYSTEM, AND AIR-CONDITIONING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/090626
Kind Code:
A1
Abstract:
An anti-slugging control method and control apparatus for an air-conditioning system and an air-conditioning system. The control method comprises the following steps: obtaining a discharge superheat DSH of a compressor in real time, and monitoring the discharge superheat DSH during operation of the air-conditioning system (S10); controlling a timer to start timing if the discharge superheat DSH is less than a first preset value M1 continuously for a first preset time t1 (S20); and controlling an outdoor unit of the air-conditioning system to stop to prevent slugging from occurring in the compressor when a measured time t of the timer reaches a second preset time t2 (S30). The discharge superheat DSH in the air-conditioning system is monitored in real time, such that a refrigerant drawn back to an air return port of the compressor can be ensured to be in a completely gaseous state, thereby preventing a liquid refrigerant from entering the compressor and preventing slugging. In addition, because a value of the discharge superheat is relatively large, it is convenient to inspect and control data, thereby improving the precision of anti-slugging control, and operation safety and reliability of the air-conditioning system.
Inventors:
XIE WEIMIN (CN)
Application Number:
PCT/CN2017/089642
Publication Date:
May 24, 2018
Filing Date:
June 22, 2017
Export Citation:
Assignee:
GD MIDEA HEATING & VENTILATING EQUIPMENT CO LTD (CN)
MIDEA GROUP CO LTD (CN)
MIDEA GROUP CO LTD (CN)
International Classes:
F25B49/02
Foreign References:
| JP2009109126A | 2009-05-21 | |||
| JP2001065949A | 2001-03-16 | |||
| CN106403429A | 2017-02-15 | |||
| CN106766444A | 2017-05-31 | |||
| CN202056042U | 2011-11-30 | |||
| CN105509255A | 2016-04-20 | |||
| CN104964343A | 2015-10-07 | |||
| CN103307818A | 2013-09-18 | |||
| JPS6414554A | 1989-01-18 |
Other References:
See also references of EP 3396262A4
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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