Plate heat exchanger

F - Mech Eng,Light,Heat,Weapons – 28 – D

Patent

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Details

F28D 9/00 (2006.01)

Patent

CA 2676301

A plate heat exchanger (100) including a number of heat exchanger plates (1 ), which are arranged beside each other and connected to each other by means of a braze connection to form a stack of plates (2), wherein the heat exchanger plates are substantially manufactured in stainless steel containing chromium, wherein the plate heat exchanger (100) includes a number of port channels extending through at least some of the heat exchanger plates (1), and wherein the plate heat exchanger (100) further including end plates (3, 5) covering each end of the stack of plates (2) and having port holes associated with the port channels, where at least one end plate (3, 5) has at least one port hole provided with a cover (9, 12) and where said cover includes means (9, 12) for increasing the strength and means (14, 15) for sealing off the at least one end plate (3, 5) against an adjacently arranged heat exchanger plate.

L'invention concerne un échangeur thermique à plaques (100) qui comprend un certain nombre de plaques d'échangeur thermique (1) qui sont disposées côte à côte et reliées les unes aux autres par brasage pour former une pile de plaques (2), les plaques d'échangeur thermique étant sensiblement fabriquées en acier inoxydable contenant du chrome, l'échangeur thermique à plaques (100) comprenant un certain nombre de canaux d'accès s'étendant à travers au moins certaines des plaques d'échangeur thermique (1). L'échangeur thermique à plaques (100) comprend en outre des plaques d'extrémité (3, 5) qui recouvrent chaque extrémité de la pile de plaques (2) et présentent des trous d'accès associés aux canaux d'accès, au moins une plaque d'extrémité (3, 5) ayant au moins un trou d'accès doté d'un couvercle (9, 12), et le couvercle comprenant un moyen (9, 12) pour augmenter la résistance et un moyen (14, 15) pour sceller la plaque d'extrémité (3, 5) contre une plaque d'échangeur thermique agencée de manière adjacente.

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