Cryogenic withdrawal apparatus and method

Details Cryogenic withdrawal apparatus and method Cryogenic withdrawal apparatus and method

1987-06-24

1988-11-15

Capossela, Ronald C.

Refrigeration

Storage of solidified or liquified gas

Spraying of cryogen

62514R, F17C 702

Patent

active

047839694

ABSTRACT:
An apparatus and method for withdrawing cryogenic liquid from a vessel is disclosed. The apparatus includes a tube for withdrawing the cryogenic liquid from the vessel, a heating coil for gasifying the liquid that is withdrawn, and a heat exchanger, consisting of an inner and outer tube, that is connected to the heating coil and immersed in the cryogenic liquid. In operation, cryogenic liquid is withdrawn through the withdrawal tube and passed through the heating coil, where it is vaporized. The vapor that is produced passes through the outer tube of the heat exchanger, giving up heat to the cryogenic liquid in the vessel to thereby gasify a portion of it, to maintain head pressure within the vessel. The vapor then passes through the inner tube of the heat exchanger, and exits the apparatus.

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