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Title:
COOLING SYSTEM FOR SUPERCONDUCTING POWER APPARATUS
Document Type and Number:
WIPO Patent Application WO/2006/001203
Kind Code:
A1
Abstract:
A cooling system for a superconducting power apparatus, having a reservoir for storing liquid gas, a circulation pump, a heat exchanger for cooling the liquid gas, and a circulation loop in which a liquefied gas circulates, the liquefied gas being circulated in a subcooled state by using the circulation pump to cool the superconducting power apparatus, wherein the cooling system further has pressurizing means for pressurizing the reservoir by the same kind of gas as the liquefied gas, and the liquid level of the reservoir for storing the liquefied gas in a pressurized state is positioned above the exit of a return line of the circulating liquefied gas by at least an amount equal to the sum of the depth of dissolution of the pressurizing gas and of the amount of correction of liquid level movement.

Inventors:
Mukoyama, Shinichi c/o The Furukawa Electric Co. Ltd. (6-1, Marunouchi 2-chom, Chiyoda-ku Tokyo 22, 10083, JP)
Ishii, Noboru c/o The Furukawa Electric Co. Ltd. (6-1, Marunouchi 2-chom, Chiyoda-ku Tokyo 22, 10083, JP)
Yagi, Masashi c/o The Furukawa Electric Co. Ltd. (6-1, Marunouchi 2-chom, Chiyoda-ku Tokyo 22, 10083, JP)
Maruyama, Satoru c/o The Furukawa Electric Co. Ltd. (6-1, Marunouchi 2-chom, Chiyoda-ku Tokyo 22, 10083, JP)
Okamoto, Tatsuki c/o Electric Power Engineering Research Laboratory (Central Research Institute of Electric Power Industry 2-6-1, Nagasak, Yokosuka-shi Kanagawa 96, 24001, JP)
Suzuki, Hiroshi c/o Electric Power Engineering Research Laboratory (Central Research Institute of Electric Power Industry 2-6-1, Nagasak, Yokosuka-shi Kanagawa 96, 24001, JP)
Ichikawa, Michiharu c/o Electric Power Engineering Research Laboratory (Central Research Institute of Electric Power Industry 2-6-1, Nagasak, Yokosuka-shi Kanagawa 96, 24001, JP)
Takahashi, Toshihiro c/o Electric Power Engineering Research Laboratory (Central Research Institute of Electric Power Industry 2-6-1, Nagasak, Yokosuka-shi Kanagawa 96, 24001, JP)
Akita, Shirabe c/o Materials Science Research Laboratory (Central Research Institute of Electric Power Industry 2-6-1, Nagasak, Yokosuka-shi Kanagawa 96, 24001, JP)
Application Number:
PCT/JP2005/010936
Publication Date:
January 05, 2006
Filing Date:
June 15, 2005
Export Citation:
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Assignee:
THE FURUKAWA ELECTRIC CO., LTD. (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 22, 10083, JP)
CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY (Ohtemachi Bldg, 7F 1-6-1 Ohtemach, Chiyoda-ku Tokyo 26, 10081, JP)
Mukoyama, Shinichi c/o The Furukawa Electric Co. Ltd. (6-1, Marunouchi 2-chom, Chiyoda-ku Tokyo 22, 10083, JP)
Ishii, Noboru c/o The Furukawa Electric Co. Ltd. (6-1, Marunouchi 2-chom, Chiyoda-ku Tokyo 22, 10083, JP)
Yagi, Masashi c/o The Furukawa Electric Co. Ltd. (6-1, Marunouchi 2-chom, Chiyoda-ku Tokyo 22, 10083, JP)
Maruyama, Satoru c/o The Furukawa Electric Co. Ltd. (6-1, Marunouchi 2-chom, Chiyoda-ku Tokyo 22, 10083, JP)
Okamoto, Tatsuki c/o Electric Power Engineering Research Laboratory (Central Research Institute of Electric Power Industry 2-6-1, Nagasak, Yokosuka-shi Kanagawa 96, 24001, JP)
Suzuki, Hiroshi c/o Electric Power Engineering Research Laboratory (Central Research Institute of Electric Power Industry 2-6-1, Nagasak, Yokosuka-shi Kanagawa 96, 24001, JP)
Ichikawa, Michiharu c/o Electric Power Engineering Research Laboratory (Central Research Institute of Electric Power Industry 2-6-1, Nagasak, Yokosuka-shi Kanagawa 96, 24001, JP)
Takahashi, Toshihiro c/o Electric Power Engineering Research Laboratory (Central Research Institute of Electric Power Industry 2-6-1, Nagasak, Yokosuka-shi Kanagawa 96, 24001, JP)
Akita, Shirabe c/o Materials Science Research Laboratory (Central Research Institute of Electric Power Industry 2-6-1, Nagasak, Yokosuka-shi Kanagawa 96, 24001, JP)
International Classes:
F25B9/00; F25D3/10; H01B12/16; H01L39/04; (IPC1-7): F25D3/10; F25B9/00; H01B12/16; H01L39/04
Foreign References:
JP2001289546A2001-10-19
JPS5874A1983-01-05
JPH0579600A1993-03-30
Other References:
See also references of EP 1780482A1
Attorney, Agent or Firm:
Kawawa, Takaho (Mita-Maruhachi Bldg. 7F, 1-10 Mita 3-chom, Minato-ku Tokyo, 108-0073, JP)
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