Title:
CRYOGENIC COOLING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/146215
Kind Code:
A1
Abstract:
A cryogenic cooling system 10 comprising: a gas circulation source 12; a cryogenic refrigeration machine 22 for cooling a cooling gas; a cooling gas flow passage 14 through which the cooling gas flows from the gas circulation source 12 to a cooling subject 11; and a control device 40 for controlling the gas circulation source 12 so as to execute an initial cooling of the cooling subject from room temperature to a target cooling temperature, in accordance with a prescribed flow rate pattern. The prescribed flow rate pattern is predetermined such that the cooling gas flows in the cooling gas flow passage 14 at a first average flow rate from the start of the initial cooling until a transition timing, and the cooling gas flows in the cooling gas flow passage 14 at a second average flow rate from the transition timing until the end of the initial cooling. The second average flow rate is lower than the first average flow rate so as to increase the cooling performance of the cryogenic cooling system 10 as compared to when the first average flow rate is maintained from the transition timing until the end of the initial cooling.
Inventors:
EBARA YUTA (JP)
MORIE TAKAAKI (JP)
YOSHIDA JYUN (JP)
MORIE TAKAAKI (JP)
YOSHIDA JYUN (JP)
Application Number:
PCT/JP2018/041618
Publication Date:
August 01, 2019
Filing Date:
November 09, 2018
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
International Classes:
F25B9/00
Foreign References:
| JP2011141074A | 2011-07-21 | |||
| JP2000121192A | 2000-04-28 | |||
| US20060097146A1 | 2006-05-11 | |||
| JPS6414559A | 1989-01-18 | |||
| JPS6414559A | 1989-01-18 |
Other References:
See also references of EP 3748256A4
Attorney, Agent or Firm:
MORISHITA Sakaki (JP)
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