Improvements to spiral heat exchangers

Details Improvements to spiral heat exchangers Improvements to spiral heat exchangers

F - Mech Eng,Light,Heat,Weapons

28

D

F28D 9/04 (2006.01) F28D 1/03 (2006.01)

Patent

CA 2410517

The invention concerns a spiral heat exchanger, consisting of a series of spiral plates spaced apart from one another by spacer elements (3), wherein the spiral plates are formed by a coiled flattened tubular element and consisting of at least a sheet of material (1) whereof the edges (1a, 2b) are sealingly assembled by linking means (4) which extend parallel to the longitudinal axis (yy') of the sheet (1) Said exchanger is characterised in that the flattened tubular element comprises on its outer surfaces ribs (3) inclined relative to its transverse axis (xx').

La présente invention concerne un échangeur de type spiralé, constitué d'une série de spires espacées les unes des autres par des éléments écarteurs (3), dans lequel les spires sont formées d'un élément tubulaire aplati qui est enroulé et qui est constitué d'au moins une feuille d'un matériau (1) dont les bords (1a, 1b) sont réunis de façon étanche par des moyens de liaison (4) qui s'étendent parallèlement à l'axe longitudinal (yy') de la feuille (1). Cet échangeur est caractérisé en ce que l'élément tubulaire aplati comporte sur ses faces externes des nervures (3) inclinées par rapport à son axe transversal (xx').

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