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Circulation-type liquid helium reliquefaction apparatus with contaminant discharge function, method of discharging contaminant from the apparatus, and refiner and transfer tube both of which are used for the apparatus

Foreign code F110003141
File No. A091-09US
Posted date Jun 15, 2011
Country United States of America
Application number 54410003
Gazette No. 20060230766
Gazette No. 07565809
Date of filing Apr 21, 2006
Gazette Date Oct 19, 2006
Gazette Date Jul 28, 2009
International application number PCT/JP03/11886
International publication number WO2004/070296
Date of international filing Sep 18, 2003
Date of international publication Aug 19, 2004
Priority data
  • P2003-025525 (Feb 3, 2003) JP
Title Circulation-type liquid helium reliquefaction apparatus with contaminant discharge function, method of discharging contaminant from the apparatus, and refiner and transfer tube both of which are used for the apparatus
Abstract 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 6. The refiner is provided with heaters and also a discharge circuit on the inflow side. The vaporized contaminants generated when the refiner 6 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.
  • Inventor, and Inventor/Applicant
  • Takeda, Tsunehiro; Ibaragi [JP]
  • Japan Science and Technology Agency, Saitama [JP]
IPC(International Patent Classification)
U.S. Cl./(Sub)
  • 62/48.2
  • 62/55.5
  • 62/532
Reference ( R and D project ) (In Japanese)CREST Creating the Brain AREA
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