Title:
REFRIGERANT LEAKAGE SPOT SPECIFYING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/057377
Kind Code:
A1
Abstract:
Provided is a refrigerant leakage spot specifying method that is capable of, while suppressing an increase in cost, specifying a refrigerant leakage spot when leakage of a refrigerant occurs. The refrigerant leakage spot specifying method applied in a refrigeration apparatus (100) is a method for specifying a refrigerant leakage spot when leakage of a refrigerant occurs in a refrigerant circuit (RC) including: a compressor (11); a liquid-side closing valve (17) that can form a closed state to block the flow of the refrigerant; a gas-side closing valve (18); and a use-side expansion valve (32). The method includes: a step for dividing the refrigerant circuit (RC) into a plurality of refrigerant flow paths by setting each of the valves to a closed state when the compressor (11) is stopped; and a step for determining whether or not there is a leakage of the refrigerant in any of the refrigerant flow paths by detecting a change in the state of the refrigerant in each of the refrigerant flow paths after the first step.
Inventors:
MATSUI KAZUYASU
KONDOU AZUMA
IKEMIYA MAKOTO
TAKEGAMI MASAAKI
TANAKA NAOHIRO
KONDOU AZUMA
IKEMIYA MAKOTO
TAKEGAMI MASAAKI
TANAKA NAOHIRO
Application Number:
PCT/JP2016/078489
Publication Date:
April 06, 2017
Filing Date:
September 27, 2016
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B49/02; F24F11/02; F25B45/00
Foreign References:
JP2005241050A | 2005-09-08 | |||
JP5306449B2 | 2013-10-02 | |||
JP2014095514A | 2014-05-22 | |||
JPH05118720A | 1993-05-14 | |||
JP2013053756A | 2013-03-21 | |||
JP2013108856A | 2013-06-06 | |||
JP2011226704A | 2011-11-10 | |||
JP2013040730A | 2013-02-28 |
Other References:
See also references of EP 3358277A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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