Title:
USAGE AS REFRIGERANT IN REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/112810
Kind Code:
A1
Abstract:
Provided is a usage as a refrigerant in a refrigeration cycle device that can suppress degradation of the refrigerant. The present invention is a usage, in a refrigeration cycle device (1), of at least one of mixed refrigerants that include 1,2-difluoroethylene and one or more types of hydrofluorocarbon, mixed refrigerants that include 1,2-difluoroethylene and one or more types of hydrofluoroolefin, and mixed refrigerants that include one or more types of hydrofluorocarbon and one or more types of hydrofluoroolefin. The refrigeration cycle device is provided with a refrigerant circuit (10) that has a compressor (11). The compressor (11) includes a compression element (21) that compresses a refrigerant and an oil reservoir section (37) in which a refrigerator oil is stored. The air pressure in the interior of the refrigerant circuit (10) is 667 Pa or less. The refrigerator oil contains at least 3.0% by weight and no more than 5.0% by weight of an acid capture agent. The temperature of the refrigerator oil in the oil reservoir section (37) is maintained at 120°C or less.
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Inventors:
KAWAE ARISA
Application Number:
PCT/JP2022/045214
Publication Date:
June 22, 2023
Filing Date:
December 08, 2022
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C09K5/04; F25B1/00; C10M105/38; C10M107/24; F25B41/31; C10N30/00; C10N40/30
Domestic Patent References:
| WO2020008520A1 | 2020-01-09 |
Foreign References:
| JP2021036193A | 2021-03-04 |
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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