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AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Prcedes Georges Claude
InventorChristian Monereau
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This apparatus (3A, 3B) is for heat exchange between at least one first fluid available at a temperature at about ambient and at least one second fluid available at a cryogenic temperature below −20° C. It comprises structure alternately to circulate the first fluid through heat exchange material in an overall centripetal manner relative to a general central axis (X-X) of the apparatus (3), from a radially external inlet (17) of the apparatus, and structure to circulate the second fluid through the heat exchange material in an overall centrifugal manner relative to said central axis, from a radially internal inlet (18) of the apparatus. Use in cooling regenerators and exchangers, and if desired for simultaneous purification, of atmospheric air to be distilled.
Apparatus for countercurrent heat exchange between at least one first fluid at a temperature adjacent ambient temperature and at least one second fluid at a cryogenic temperature below −20° C., which comprises a vessel containing heat exchange material and having a radially external passageway and a radially internal passageway, means alternately to circulate the first fluid in an overall centripetal manner relative to a general central axis (X-X) of the apparatus (3), from said radially external passageway (17) of the apparatus through said heat exchange material and out said radially internal passageway, and means to circulate the second fluid in an overall centrifugal manner relative to said central axis, from said radially internal passageway (18) through said heat exchange material and out said radially external passageway of the apparatus.
Process for cryogenic cooling of a first fluid available at about ambient temperature, by countercurrent heat exchange with a second fluid available at a cryogenic temperature below 20° C., which comprises alternately circulating the first fluid in a heat exchange apparatus (3) that comprises a vessel containing heat exchange material and that has a radially external passageway and a radially internal passageway, in an overall centrifugal manner relative to a general central axis (X-X) of this apparatus, from said radially external passageway (17) of the apparatus through said heat exchange material and out said radially external passageway, and circulating the second fluid in a generally centrifugal manner relative to said central axis, from said radially internal passageway (18) through said heat exchange material and out said radially external passageway of the apparatus.
Dependencies are inferred from the claim text.