Title:
極低温流体循環式冷却システム及び極低温流体循環式冷却方法
Document Type and Number:
Japanese Patent JP7141342
Kind Code:
B2
Abstract:
To provide a cryogenic fluid circulation type cooling system and a cryogenic fluid circulation type cooling method which have high cooling efficiency, high expansion turbine efficiency and a low number of locations causing pressure losses.SOLUTION: In a first auxiliary heat exchanger 3a, a temperature of cryogenic refrigerant gas discharged from a first expansion turbine 6a is increased with refrigerant gas which has undergone heat exchange in a second auxiliary heat exchanger 3b. Also, in the first auxiliary heat exchanger 3a, cooling liquid flowing in a second circulation passage L2A is cooled with the refrigerant gas discharged from the first expansion turbine 6a and the refrigerant gas with the temperature thereof increased through the heat exchange in the second auxiliary heat exchanger 3b. In the second auxiliary heat exchanger 3b, the heat exchange is performed between the cooling liquid which has undergone the heat exchange in the first auxiliary heat exchanger 3a and the refrigerant gas discharged from a second expansion turbine 6b.SELECTED DRAWING: Figure 1
Inventors:
Hirokawa Masaki
Toru Nagasaka
Toru Nagasaka
Application Number:
JP2019015641A
Publication Date:
September 22, 2022
Filing Date:
January 31, 2019
Export Citation:
Assignee:
Taiyo Nippon Sanso Co., Ltd.
International Classes:
F25B9/06; F25B11/02
Domestic Patent References:
| JP2011504574A | ||||
| JP2013242138A | ||||
| JP2106688A |
Foreign References:
| WO2013154185A1 |
Attorney, Agent or Firm:
Patent Attorney Shiga International Patent Office