Apparatus for the separation or liquefaction of a gas operating at cryogenic temperatures
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsYann-Pierrick Lemaire, Patrick Le Bot
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Abstract
An apparatus for the separation or liquefaction of a gas at cryogenic temperatures which comprises an isolated chamber comprises at least one front distillation column operating at cryogenic temperatures and also a pipe for transferring fluid coming from or going to the column, the pipe having a diameter D comprising a bend for changing the direction of flow of the fluid, with profiled deflector vanes placed inside the bend, with their concavity towards the centre of the bend forming a plurality of ducts.
Claims10
An apparatus for the separation or liquefaction of a gas at cryogenic temperatures, the apparatus comprising:
- an isolated chamber having at least one element operating at cryogenic temperatures, the element being a distillation column, and
- a pipe configured to transfer fluid coming from or going to the at least one element, the pipe having a diameter D comprising a bend for changing the direction of flow of the fluid, wherein:
- a. the bend does not comprise a curvature and forms a right angle, or alternatively comprises a curvature for which the ratio of the radius of curvature R to the diameter D of the pipe is less than (0.5 D+x)/D where x is equal to 0 or greater than 0 and less than 0.5 D,
- b. profiled deflector vanes are placed inside the bend, with their concavity towards the centre of the bend forming a plurality of parallel curved ducts,
- wherein at least one vane extends out of the pipe.
Dependencies are inferred from the claim text.