Title:
REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/127459
Kind Code:
A1
Abstract:
This refrigeration device comprises: a refrigeration circuit having a heat exchanger that cools refrigerant flowing in an expansion device by means of the refrigerant flowing from an evaporator to a compressor, the refrigeration circuit circulating the refrigerant therethrough; and a fan that generates cooling air to cool the condenser. The refrigerant is a non-azeotropic refrigerant mixture containing a high-boiling point refrigerant, a medium-boiling point refrigerant with a boiling point lower than the high-boiling point refrigerant, and a low-boiling point refrigerant with a boiling point lower than the medium-boiling point refrigerant, wherein the high-boiling point refrigerant is 50% by weight or more but not more than 80% by weight, the medium-boiling point refrigerant is 10% by weight or more but less than 50% by weight, and the low-boiling point refrigerant is less than 20% by weight. The content of the high-boiling point refrigerant in the refrigerant is greater than that of the medium-boiling point refrigerant, and the content of the medium-boiling point refrigerant in the refrigerant is greater than that of the low-boiling point refrigerant. The piping through which the refrigerant derived from the compressor and flowing into the condenser passes has a countercurrent flow configuration portion in which the refrigerant flowing in the piping is countercurrent to the cooling air.
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Inventors:
TOYOOKA TAKASHI
YAMANAKA HIROFUMI
HASHIMOTO NAOKI
SAITOU YUUKI
YAMANAKA HIROFUMI
HASHIMOTO NAOKI
SAITOU YUUKI
Application Number:
PCT/JP2022/045375
Publication Date:
July 06, 2023
Filing Date:
December 08, 2022
Export Citation:
Assignee:
PHC CORP (JP)
International Classes:
F25B1/00; F25B31/00; F25B40/00; F25B40/02; F25B43/00; F25D19/00
Domestic Patent References:
| WO2011150940A1 | 2011-12-08 |
Foreign References:
| JP2016070571A | 2016-05-09 | |||
| JP2010043752A | 2010-02-25 | |||
| KR20170085707A | 2017-07-25 | |||
| JP2009102567A | 2009-05-14 | |||
| JP2008002759A | 2008-01-10 |
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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