Refrigeration – Low pressure cold trap process and apparatus
Patent
1981-02-27
1983-09-27
Capossela, Ronald C.
Refrigeration
Low pressure cold trap process and apparatus
55269, 62268, 165171, 417901, B01D 800
Patent
active
044061307
ABSTRACT:
A cold surface for cryogenic pumps in the form of a (filled/through-streamed) double wall which is acted upon by a liquid refrigeration medium, as well as to a process for the production of such a cold surface. The double wall is formed by a series of thin-walled narrow tubes which are interconnected with each other, to which there are presently attached thin axially parallel, good heat conductive metal lamellas, wherein the tube diameter, tube spacing and wall thickness, as well as the lamella thickness, with consideration being given to a minimization of the total mass of the surface, are so correlated and dimensioned with respect to each other that the temperature differences within the lamellas of the surface which is acted upon with liquid refrigeration medium at a maximum occuring heat loading will remain below 0.1.degree. K.
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Kuhne, H., German Publication Document K10580, Apr. 24, 1952.
Capossela Ronald C.
Kernforschungsanlage Julich GmbH
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