Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/259354
Kind Code:
A1
Abstract:
A refrigeration cycle device (100, 101) is provided with a refrigerant circulation circuit (10) and a liquid medium circulation circuit (20). The refrigerant circulation circuit includes a compressor (11), a four-way valve (12), an air heat exchanger (13), an expansion valve (14), and a water heat exchanger (30). The liquid medium circulation circuit includes a pump (21), a liquid flow direction switching part (22), the water heat exchanger (30), and an intra-chamber heat exchanger (23). The water heat exchanger is provided such that heat exchange is performed between a non‐azeotropic mixed refrigerant and a liquid medium. The four-way valve switches between a first state in which the non-azeotropic mixed refrigerant flows through the compressor, the air heat exchanger, and the water heat exchanger in the stated order and a second state in which the non-azeotropic mixed refrigerant flows through the compressor, the water heat exchanger, and the air heat exchanger in the stated order. The liquid flow direction switching part switches the direction of the liquid medium flowing through the liquid medium circulation circuit. In the first state, the non-azeotropic mixed refrigerant flows through the water heat exchanger upward from below, and the liquid medium flows through the water heat exchanger downward from above. In the second state, the non-azeotropic mixed refrigerant flows through the water heat exchanger downward from above, and the liquid medium flows through the water heat exchanger upward from below. The direction of the liquid medium flowing through the intra-chamber heat exchanger is fixed in each of the first state and the second state.
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Inventors:
ITO MASAHIRO (JP)
Application Number:
PCT/JP2021/021695
Publication Date:
December 15, 2022
Filing Date:
June 08, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00
Domestic Patent References:
| WO2012070192A1 | 2012-05-31 |
Foreign References:
| JPH10281575A | 1998-10-23 | |||
| JPH0886477A | 1996-04-02 | |||
| JP2009018602A | 2009-01-29 | |||
| JP2020139641A | 2020-09-03 | |||
| JPH10281575A | 1998-10-23 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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