Title:
REFRIGERATION CYCLE APPARATUS
Document Type and Number:
WIPO Patent Application WO/2015/140884
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a safe and high-performance refrigeration cycle apparatus whereby, even when a refrigerant that can cause a disproportionation reaction is used as one component of a non-azeotropic refrigerant mixture in the refrigeration cycle apparatus, it becomes possible to avoid the refrigerant being exposed to a condition in which the disproportionation reaction can occur. A refrigeration cycle apparatus, in which a non-azeotropic refrigerant mixture is used as a working refrigerant, wherein the non-azeotropic refrigerant mixture comprises a first refrigerant and a second refrigerant having such a property that the boiling point of the second refrigerant can become higher than that of the first refrigerant under the same pressure. The refrigeration cycle apparatus is equipped with at least a main passage, wherein the main passage is composed of a compressor, a first heat exchanger, an expansion valve, a gas/liquid separator and a second heat exchanger which are connected in this order. In the refrigeration cycle apparatus, the first refrigerant has a property of causing a disproportionation reaction, and an initial operation for reducing the temperature or pressure of the refrigerant ejected from the compressor compared with that employed in an ordinary operation on the basis of the amount of the liquid refrigerant in the gas/liquid separator is carried out in an initial stage that is to be carried out subsequently to the starting up of the compressor.
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Inventors:
NISHIYAMA TAKUMI (JP)
OKAZAKI TAKASHI (JP)
MATSUI SHIGEYOSHI (JP)
ISHIBASHI AKIRA (JP)
HIGASHIIUE SHINYA (JP)
UGAJIN YUKI (JP)
ITO DAISUKE (JP)
OKAZAKI TAKASHI (JP)
MATSUI SHIGEYOSHI (JP)
ISHIBASHI AKIRA (JP)
HIGASHIIUE SHINYA (JP)
UGAJIN YUKI (JP)
ITO DAISUKE (JP)
Application Number:
PCT/JP2014/057046
Publication Date:
September 24, 2015
Filing Date:
March 17, 2014
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
ASAHI GLASS CO LTD (JP)
ASAHI GLASS CO LTD (JP)
International Classes:
F25B1/00
Domestic Patent References:
| WO2012157764A1 | 2012-11-22 | |||
| WO2013099147A1 | 2013-07-04 |
Foreign References:
| JPH07190515A | 1995-07-28 | |||
| JP2010156524A | 2010-07-15 | |||
| JPS53110545U | 1978-09-04 | |||
| JP2001027460A | 2001-01-30 | |||
| JP2011094964A | 2011-05-12 |
Other References:
See also references of EP 3121534A4
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
Patent business corporation きさ patent trademark office (JP)
Patent business corporation きさ patent trademark office (JP)
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