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Title:
CRYOGENIC SUPERCONDUCTOR COOLING SYSTEM
Document Type and Number:
Japanese Patent JP2004119966
Kind Code:
A
Abstract:

To provide an effective and reliable system, cooling superconducting equipment.

A cooling fluid 5, at a temperature within the range of typically about -243.15 to -223.15°C, is delivered to a cryogenic cooler 7 inside a vacuum sleeve 8. The vacuum sleeve provides insulation to the cold end of the cryogenic cooler, and a heat exchanger 9 at this low-temperature end. The cooling fluid 5 is delivered through the heat exchanger 9 of the cryogenic cooler 7 and cooled. Then, it becomes a cooling fluid flow 10, that is cooled at the temperature within the range of generally about -253.15 to -243.15°C, and leaves the cryogenic cooler 7. The cooled cooling fluid flow 10 becomes the cooling fluid flow 19 at the temperature of typically about -272.15 to -269.15°C, that is a temperature higher than that of the cooling fluid 10, cooled through indirect heat exchange with a ballast liquid. Then, it is delivered to the superconducting equipment 20, where it provides cooling to the superconducting equipment 20 through either direct or indirect heat exchange.


Inventors:
RAMPERSAD BRYCE MARK
BONAQUIST DANTE PATRICK
MINBIOLE BARRY ALAN
ACHARYA ARUN
Application Number:
JP2003299745A
Publication Date:
April 15, 2004
Filing Date:
August 25, 2003
Export Citation:
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Assignee:
PRAXAIR TECHNOLOGY INC
International Classes:
F25B9/00; F25B25/00; H01L39/04; F25B9/14; (IPC1-7): H01L39/04; F25B9/00
Domestic Patent References:
JPH11224813A1999-08-17
JPS62224987A1987-10-02
JP2003148844A2003-05-21
Foreign References:
US6442949B12002-09-03
Attorney, Agent or Firm:
Motohiro Kurauchi
Hiroshi Kazama