Cold trap with rapidly regeneration

摘要

The cryogenic trap of the invention comprises, in a hollow body ( 3 ) having an access valve ( 2 ) and an outlet valve ( 6 ), a cold core ( 11 ) associated with a plate ( 13 ) having low thermal inertia and movable between a trapping position in contact with the cold core ( 11 ), and a regeneration position spaced apart from the cold core ( 11 ) and in contact with a heater ring ( 14 ). The plate ( 13 ) is in contact with gases to be trapped, and prevents them from passing to the cold core ( 11 ). Regeneration requires heating only of the plate ( 13 ) carrying the condensed and solidified gases, and it is therefore more rapid.