Heat exchanger with brazed plates and corresponding process for treating a diphase fluid
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorJean-Yves Lehman
Life of this patent
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Abstract
The heat exchanger is of the type comprising a series of first passages (4) in which a diphase fluid circulates, each of the passages being adjacent to at least one second passage (5) for the circulation of another fluid which is a heating or refrigerating fluid. At least one of the first passages (4) comprises, in at least one region of the length thereof, an increase in the cross section of the passage and means (9, 11) for receiving and discharging one of the two phases of the diphase fluid.
Claims16
Heat exchanger with brazed plates, comprising in combination:
- a stack of plates, corrugated fins-spacers separating said plates, and a group of generally flat-shaped passages defined by said plates, said group of passages comprising a series of first passages for circulation of a diphase fluid, a series of second passages for circulation of a heating or refrigerating fluid, each first passage being adjacent to at least one second passage for circulation of said heating or refrigerating fluid, at least one of said first passages comprising, in at least one region along a length thereof, an increase in cross section of said at least one first passage, and means for receiving and discharging one of the two phases of said diphase fluid.
Process for treating a diphase fluid in a heat exchanger which comprises brazed plates defining passages for circulation of a diphase fluid, said process comprising providing in at least one region along a length of each passage for circulation of said diphase fluid a cross section of the passage for said diphase fluid which is substantially increased, and means for receiving one of the two phases of said diphase fluid.
Dependencies are inferred from the claim text.