Title:
MULTI-LINE APPARATUS SYSTEM REFRIGERANT FLOW CONTROL METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/005036
Kind Code:
A1
Abstract:
A multi-line apparatus system refrigerant flow control method and device, the method comprising the following steps: when a multi-line apparatus system enters a main heating mode, controlling a second electronic expansion valve to close; controlling an electronic expansion valve corresponding to a refrigeration internal apparatus to adjust an opening amount thereof; when the opening amount of the electronic expansion valve corresponding to the refrigeration internal apparatus reaches a maximum, calculating a target opening amount of the second electronic expansion valve on the basis of a total opening amount and a maximum opening amount of the electronic expansion valve corresponding to the refrigeration internal apparatus; and controlling the second electronic expansion valve according to target opening amount. The multi-line apparatus system refrigerant bypass control method can ensure a refrigeration effect of a refrigeration internal apparatus in a main heating mode, and at the same time can prevent compressor slugging, ensuring safe and reliable compressor operation.
Inventors:
LUO BIN (CN)
LI YUANYANG (CN)
LI YUANYANG (CN)
Application Number:
PCT/CN2016/080246
Publication Date:
January 12, 2017
Filing Date:
April 26, 2016
Export Citation:
Assignee:
GD MIDEA HEATING & VENTILATING EQUIPMENT CO LTD (CN)
MIDEA GROUP CO LTD (CN)
MIDEA GROUP CO LTD (CN)
International Classes:
F25B41/34
Domestic Patent References:
| WO2014016865A1 | 2014-01-30 |
Foreign References:
| CN105115199A | 2015-12-02 | |||
| CN104748428A | 2015-07-01 | |||
| CN1763451A | 2006-04-26 |
Other References:
See also references of EP 3182039A4
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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