Refrigeration – Low pressure cold trap process and apparatus
Patent
1983-03-17
1984-10-09
Capossela, Ronald C.
Refrigeration
Low pressure cold trap process and apparatus
55269, 62268, 417901, B01D 800
Patent
active
044753497
ABSTRACT:
Apparatus for continuous pumping using cycling cyropumping panels. A plurality of liquid helium cooled panels are surrounded by movable nitrogen cooled panels the alternatively expose or shield the helium cooled panels from the space being pumped. Gases condense on exposed helium cooled panels until the nitrogen cooled panels are positioned to isolate the helium cooled panels. The helium cooled panels are incrementally warmed, causing captured gases to accumulate at the base of the panels, where an independent pump removes the gases. After the helium cooled panels are substantially cleaned of condensate, the nitrogen cooled panels are positioned to expose the helium cooled panels to the space being pumped.
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Damm et al.: "Preliminary Design of a Tandem-Mirror-Next-Step Facility", UCRL-53060.
Batzer Thomas H.
Call Wayne R.
Capossela Ronald C.
Carnahan L. E.
Esposito Michael F.
Gaither Roger S.
The United States of America as represented by the United States
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