REFRIGERANT LEAKAGE SPOT SPECIFYING METHOD

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

Application Number:

PCT/JP2016/078489

Publication Date:

April 06, 2017

Filing Date:

September 27, 2016

Export Citation:

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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: