LIQUEFACTION SYSTEM AND POWER GENERATION SYSTEM

Japanese Patent JP2016166691

A

PROBLEM TO BE SOLVED: To reduce energy for reducing and keeping temperature of a refrigerant to and at a critical temperature of a superconductive material constituting a superconductive magnet or less, the refrigerant being used for cooling the superconductive magnet of a superconductive motor to the critical temperature or less.SOLUTION: A liquefying machine 4 includes a first compression section 40 driven by a superconductive motor 3 and compressing gaseous substance. A cooling circuit 5 includes: a second compression section 50 for compressing a refrigerant and driven by the superconductive motor 3 when the first compression section 40 is driven by the superconductive motor 3; a first heat exchange section 51 for cooling the refrigerant by heat exchange between a substance stored in a tank 2 and the compressed refrigerant; a second expansion section 52 for reducing the temperature of the refrigerant to the critical temperature of the superconductive material or less by expanding the cooled refrigerant; and a second heat exchange section 53 for applying cold heat of the refrigerant to the substance by heat exchange between the substance stored in the tank 2 and the refrigerant after used for cooling the superconductive magnet. The refrigerant cooled to the critical temperature or less by the second expansion section 52 is sent to the superconductive motor 3 to cool the superconductive magnet to the critical temperature or less.SELECTED DRAWING: Figure 1

INOUE KENICHI
SAITO KAZUNARI
ZAITSU TAKASHI
INOUE KOJI
ITO SATOSHI

JP2015046253A

September 15, 2016

March 09, 2015

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KOBE STEEL LTD
JAPAN SUPERCONDUCTOR TECH INC

F25B9/02; F25B11/02; H02K55/00

JP2013519060A	2013-05-23
JP2007083851A	2007-04-05
JP2016211777A	2016-12-15

Etsushi Kotani
Masataka Otani
Satoshi Sakurai

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