Title:
BINARY REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/221382
Kind Code:
A1
Abstract:
A binary refrigeration device comprising: a high-order refrigeration cycle in which a high-order side compressor, a high-order side condenser, a high-order side expansion valve, and a high-order side evaporator are connected by piping and that forms a high-order side refrigerant circuit in which a high-order side refrigerant circulates; a low-order refrigeration cycle in which a low-order side compressor, an auxiliary radiator, a low-order side condenser, a low-order side expansion valve, and a low-order side evaporator are connected by piping and that forms a low-order side refrigerant circuit in which a low-order side refrigerant circulates; and a first cascade condenser that has the high-order side evaporator and the low-order side condenser and that performs heat exchange between the high-order side refrigerant that flows in the high-order side refrigerant circuit and the low-order side refrigerant that flows in the low-order side refrigerant circuit. The binary refrigeration device comprises: a branch circuit that branches from the downstream side of the high-order side condenser in the high-order refrigeration cycle and that returns to the upstream side of the high-order side expansion valve; a second cascade condenser that is provided in the branch circuit and that performs heat exchange between the high-order side refrigerant that flows in the branch circuit and the low-order side refrigerant flowing from the low-order side evaporator; and a control device that controls the operation of each apparatus provided in the binary refrigeration device.
Inventors:
FUJIMOTO TOMOYA (JP)
ISHIKAWA TOMOTAKA (JP)
ARII YUSUKE (JP)
ISHIKAWA TOMOTAKA (JP)
ARII YUSUKE (JP)
Application Number:
PCT/JP2016/068697
Publication Date:
December 28, 2017
Filing Date:
June 23, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B7/00
Domestic Patent References:
| WO2016009516A1 | 2016-01-21 |
Foreign References:
| JP2009300000A | 2009-12-24 | |||
| JP2013083407A | 2013-05-09 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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