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Title:
CONTROL METHOD AND CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/042100
Kind Code:
A1
Abstract:
Disclosed are a control method and a control system. A valve closing position of a valve device (1) can be controlled according to the current flow direction or working mode of a refrigerant. The stroke of the valve device (1) from a fully-open position to a fully-closed position is defined as a total valve closing stroke. When the flow direction of the refrigerant is a forward direction, the valve device (1) is controlled to run to a first valve closing position, and when the flow direction of the refrigerant is a reverse direction, the valve device (1) is controlled to run to a second valve closing position. The first valve closing position is different from the second valve closing position, and in this way, wear caused by valve closing can be reduced.

More Like This:
JP2008249239CONTROL METHOD OF COOLING DEVICE, COOLING DEVICE AND REFRIGERATING STORAGE
WO/2001/001052A CONTROL ASSEMBLY FOR A REFRIGERATION UNIT
Inventors:
ZHANG BIN (CN)
XIE JINLAN (CN)
Application Number:
PCT/CN2018/099334
Publication Date:
March 07, 2019
Filing Date:
August 08, 2018
Export Citation:
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Assignee:
HANGZHOU SANHUA RES INST CO LTD (CN)
International Classes:
F25B49/02; F16K17/20; F16K17/22; F25B49/00
Foreign References:
CN103672131A2014-03-26
JP2010054019A2010-03-11
CN103388694A2013-11-13
CN201710754411A2017-08-29
Other References:
See also references of EP 3677859A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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