Refrigeration – Storage of solidified or liquified gas – Storing solidified gas
Patent
1988-01-06
1989-01-10
Capossela, Ronald C.
Refrigeration
Storage of solidified or liquified gas
Storing solidified gas
62514R, F17C 1300
Patent
active
047964332
ABSTRACT:
A recondenser with a primary heat exchanging surface for recondensing boil-off within a cryostat provides a second heat exchanging surface for removing heat leak into the cryostat. The second surface is cooled by the same working fluid that cools the primary surface, but at a temperature intermediate that of the primary surface and associated cooling apparatus which is remote from the cryostat. An intermediate transfer line transfers working fluid from an intermediate portion of the cooling apparatus to the second surface which is in heat exchange relation with a radiation shield of the cryostat but is out of physical contact with the radiation shield. The cooling apparatus includes a mechanical refrigerator which further cools working fluid returned from the second surface through the intermediate transfer line. The intermediate transfer line is preferably positioned in a non-contact helical manner about a final transfer line which carries the working fluid to the primary surface. The two transfer lines form an assembly which is less than about one inch in outer diameter and is removeably positioned in the cryostat. The intermediate transfer line is thermally isolated from the final transfer line within the assembly.
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Capossela Ronald C.
Helix Technology Corporation
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