Refrigeration – Storage of solidified or liquified gas – Liquified gas transferred as liquid
Patent
1992-12-31
1995-02-07
Bennett, Henry A.
Refrigeration
Storage of solidified or liquified gas
Liquified gas transferred as liquid
62 511, F17C 902
Patent
active
053867076
ABSTRACT:
A method for withdrawing from a vessel pressurized cryogenic helium fluid with an objectionable impurity concentration of less than 5 ppmv. The method comprises pressurizing at or near the top of the vessel with helium fluid from an external source having a concentration of up to 1000 ppmv of the objectionable impurity, and withdrawing from a port near the bottom of a vessel helium fluid at a cryogenic temperature below the temperature at which the withdrawn fluid has an objectionable impurity of 5 ppmv.
REFERENCES:
patent: 3123981 (1964-03-01), Carney et al.
patent: 4315407 (1982-02-01), Creed et al.
patent: 4519213 (1985-05-01), Brigham et al.
patent: 4559786 (1985-12-01), Schuck
patent: 4637216 (1987-01-01), Shenoy et al.
patent: 4744222 (1988-05-01), Murai
patent: 4766731 (1988-08-01), Graczyk et al.
patent: 4877153 (1989-10-01), Varghese et al.
Transient Shielded Cryogenic Containers, by A. P. Varghese and B. X. Zhang Supercollider 3, pp. 891-899, Premium Press, New York 1991.
Technology of Liquid Helium, National Bureau of Standards Monograph 111, pp. 223-248.
Goelz, Jr. Robert E.
Schulte Thomas R.
Bennett Henry A.
Kent Peter
Pak Chung K.
Praxair Technology Inc.
LandOfFree
Withdrawal of cryogenic helium with low impurity from a vessel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Withdrawal of cryogenic helium with low impurity from a vessel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Withdrawal of cryogenic helium with low impurity from a vessel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1103823