Refrigeration – Storage of solidified or liquified gas
Patent
1985-06-26
1987-06-23
Capossela, Ronald C.
Refrigeration
Storage of solidified or liquified gas
62 50, 62 54, 220446, 220465, 220901, F17C 100
Patent
active
046742891
ABSTRACT:
A container for low temperature liquefied gas includes inner and outer shells forming a sealed evacuated space around the inner shell to insure low heat conduction from the ambient surroundings through the container to the liquefied gas in the inner shell. The container provides gas at relatively low pressure by drawing the liquefied gas from the inner shell to a heat exchanger where it evaporates and is fed to a user. A vacuum insulated access channel is provided through the shells for a fluid output tube through which the liquefied gas is drawn from the inner shell to the heat exchanger. The channel is formed by a thin wall sealing tube that conducts little heat, because the wall is so thin, sealed to the inner shell and enclosed by a support structure including a thick wall structural tube enclosing the thin wall tube and connected rigidly and sealed to the outer shell for structural support between the shells and also provides an annular space around the thin wall tube that is evacuated. The structural tube also connects securely, but moveably, to the inner shell, via a spacer made of low thermal conductivity material, so that the inner shell can move slightly within the outer shell, but not so much as to break the vacuum seal of the thin wall tube to the inner shell.
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Capossela Ronald C.
Dunn Robert T.
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