F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
F28F 9/16 (2006.01) B21D 53/04 (2006.01) B23K 1/00 (2006.01)
Patent
CA 2542746
The invention relates to a plate heat exchanger and a method of manufacturing a plate heat exchanger. The plate heat exchanger includes a number of heat exchanger plates (1, 1~, 1~~) which are provided beside each other and connected to each other by means of a braze connection. The heat exchanger plates are substantially manufactured in stainless steel containing chromium. The plate heat exchanger includes a number of port channels extending through at least some of the heat exchanger plates. Each port channel is surrounding by a connection surface (5) for connection of the port channel to a pipe member (6). The connection surface includes a material permitting brazing of the pipe member to the connection surface in a more easy manner than stainless steel.
La présente invention concerne un échangeur thermique à plaques et un procédé de fabrication d'échangeur thermique à plaques. L'échangeur thermique à plaques de l'invention comprend un nombre de plaques d'échangeur thermique (1, 1', 1'') qui sont placées l'une à côté de l'autre et reliées entre elles par brasage. Les plaques d'échangeur thermique sont sensiblement fabriquées en acier inoxydable contenant du chrome. L'échangeur thermique à plaques comprend un nombre d'orifices de canal s'étendant à travers au moins certaines des plaques d'échangeur thermique. Chaque orifice de canal est entouré d'une surface de raccordement (5) qui permet de raccorder l'orifice de canal à un organe tuyau (6). La surface de raccordement comprend un matériau qui permet de braser l'organe tuyau sur la surface de raccordement plus facilement que ne le permet l'acier inoxydable.
Dahlberg Per-Olof
Sjoedin Per
Alfa Laval Corporate Ab
Borden Ladner Gervais Llp
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