REFRIGERATION DEVICE

WIPO Patent Application WO/2016/103296

A1

Provided is a refrigeration device that efficiently employs an ejector in a refrigeration cycle. A first-stage ejector 41a provided in a refrigeration device sucks a refrigerant gas by the ejection of a high-pressure refrigerant liquid obtained by condensing a high-pressure refrigerant gas emitted from a compressor 20, and increases the pressure of a mixed fluid thereof. A first-stage heat exchanger 34a cools a fluid to be cooled by exchanging heat with the mixed fluid the pressure of which has been increased by the first-stage ejector 41a. A first-stage gas-liquid separator 33a separates a liquid accompanying the refrigerant gas generated by the first-stage heat exchanger 34a, and sends the liquid to the compressor 20. A next-stage heat exchanger 34b cools the fluid to be cooled by exchanging heat with a refrigerant obtained by expanding, with an expander 36b, the refrigerant liquid that did not vaporize in the first-stage heat exchanger 34a. The refrigeration device also includes a flow path 501 that supplies a refrigerant gas generated by the next-stage heat exchanger 34b to a suction opening 413 of the first-stage ejector 41a.

WATANUKI RYOSUKE (JP)
NAKAYAMA TORU (JP)
OMORI HIDEFUMI (JP)
YAMANAKA YUTAKA (JP)

PCT/JP2014/006470

June 30, 2016

December 25, 2014

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JGC CORP (JP)

F25B5/04; F25B1/00; F25B9/10; F25J1/00; F25J1/02

JP2005315469A	2005-11-10
JP2014077552A	2014-05-01
JP2013108632A	2013-06-06
JP2007024412A	2007-02-01
JPS5128101A	1976-03-09

INOUE, TOSHIO (JP)
Toshio Inoue (JP)

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