METHOD AND DEVICE FOR COOLING SUPERCONDUCTOR - SUMITOMO ELECTRIC INDUSTRIES

Title:

METHOD AND DEVICE FOR COOLING SUPERCONDUCTOR

Document Type and Number:

WIPO Patent Application WO/1999/062127

Kind Code:

A1

Abstract:

A method and device for cooling a high-temperature superconductor to lower temperatures simply and at a low cost, wherein a high-temperature superconductor forming a cable (50) is cooled by a liquid refrigerant (41) which is in turn cooled by a refrigerating machine (10) to a solidifying point or lower of the refrigerant in a standstill condition in the cooling system and which is forcibly passed and circulated by a pump (34) during cooling to be kept in a fluid condition at the solidifying point or lower by that physical action, or a flow rate of the refrigerant may be controlled according to a viscosity of the refrigerant measured by a viscometer (61), whereby liquid nitrogen is kept in a liquid condition at about 45 K.

Inventors:

NAKAHARA TUNEO (JP)
OHKURA KENGO (JP)
SATO KEN-ICHI (JP)

Application Number:

PCT/JP1999/002629

Publication Date:

December 02, 1999

Filing Date:

May 20, 1999

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SUMITOMO ELECTRIC INDUSTRIES (JP)
NAKAHARA TUNEO (JP)
OHKURA KENGO (JP)
SATO KEN ICHI (JP)

International Classes:

F17C13/00; F17C13/02; F25B25/00; F25B47/00; H01B12/16; H01L39/04; F25B9/06; (IPC1-7): H01L39/04

Foreign References:

JPH01153507A	1989-06-15
JPH03276775A	1991-12-06
JPS6428905A	1989-01-31
JPH01184370A	1989-07-24
JPS6416568U	1989-01-27
JPS6430863U	1989-02-27
JPS6430862U	1989-02-27

Other References: