Title:
REFRIGERANT LEAK DETECTION SYSTEM AND LEAK DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/199425
Kind Code:
A1
Abstract:
This refrigerant leak detection system is for diagnosing the presence/absence of a refrigerant leak in a refrigeration cycle device, the system comprising: a refrigeration cycle device which includes a compressor, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger and in which a refrigerant circulates; an acquisition unit for acquiring a dataset that includes a physical quantity pertaining to the state of the refrigeration cycle device and that is obtained during a refrigerant leak detection operation in which the compressor is operated in a state where the expansion valve is completely closed or minimally opened; an arithmetic unit that calculates a parameter on the basis of the physical quantity included in the dataset; a refrigerant leak determination unit that determines a leak of the refrigerant in the refrigeration cycle device on the basis of the physical quantity and the parameter; and a display unit that displays the determination result from the refrigerant leak determination unit.
Inventors:
WADA MAKOTO (JP)
Application Number:
PCT/JP2022/017688
Publication Date:
October 19, 2023
Filing Date:
April 13, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B49/02
Domestic Patent References:
| WO2019053771A1 | 2019-03-21 | |||
| WO2019162993A1 | 2019-08-29 |
Foreign References:
| JP2013156006A | 2013-08-15 | |||
| JP2020056509A | 2020-04-09 | |||
| JP2010210098A | 2010-09-24 | |||
| JP2014159944A | 2014-09-04 | |||
| JP2005241050A | 2005-09-08 | |||
| JP2016125694A | 2016-07-11 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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