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Refiner for a circulation type liquid helium recondensation device with a contaminant purging function

外国特許コード F110003419
整理番号 A091-09EP2
掲載日 2011年6月27日
出願国 欧州特許庁(EPO)
出願番号 10008867
公報番号 2253911
公報番号 2253911
出願日 平成15年9月18日(2003.9.18)
公報発行日 平成22年11月24日(2010.11.24)
公報発行日 平成27年6月24日(2015.6.24)
優先権データ
  • 03748537 (2003.9.18) EP
  • 特願2003-025525 (2003.2.3) JP
発明の名称 (英語) Refiner for a circulation type liquid helium recondensation device with a contaminant purging function
発明の概要(英語) This invention relates to a circulation type liquid helium recondensation device with a contaminant-purging function capable of vaporizing and removing contaminants deposited on the refiner in the device.
Helium gas vaporizing in the liquid helium storage tank (2) is pumped by the circulating pump (7) and refined in the refiner (6A,6B).
The refiner is provided with heaters and also a discharge circuit on the inflow side.
The vaporized contaminants generated when the refiner (6A,6B) is heated by the heaters are pumped by the circulating pump (7) or the dedicated purge pump (8) and vented to the atmosphere via said discharge circuit.
特許請求の範囲(英語) [claim1]
1. A refiner (6) for a circulation type liquid helium recondensation device with a contaminant-purging function designed to pump helium gas evaporating from the liquid helium storage tank (2) using a circulating pump (7), refine the pumped helium gas in the refiner (6), liquefy the gas, and return the liquefied helium to the liquid helium storage tank (2) for recycling, in which said refiner (6) is made up of a thermally conductive housing (61), with a contaminant solidification unit (73), an infeed means (64) to transfer helium gas to said housing, and a heating means to vaporize the contaminants attached to said solidification unit (73), and in which the contaminants vaporizing in the refiner (6) are discharged from the refiner (6) to the atmosphere via said infeed means (64),
characterised in that said infeed means (64) is supported on the housing via stainless steel bellows (66) that reduce the thermal gradient, and in that said contaminant solidification unit is installed on the housing (61).
[claim2]
2. A refiner as claimed in claim 1 in which said contaminant solidification unit (73) is a staggered zigzag passage made up of thermally conductive fins.
  • 出願人(英語)
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • 発明者(英語)
  • TAKEDA TSUNEHIRO
国際特許分類(IPC)
指定国 Contracting States: FI
参考情報 (研究プロジェクト等) CREST Creating the Brain AREA
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