Rim sealed plate-type heat exchanger

Plate-type heat exchanger with a circumferential seal (3),

• said heat exchanger having at least two essentially parallel plates (1) adapted to be secured together with space therebetween to permit a heat exchange fluid to pass between the plates, each plate defining a rim (R, R'),
• wherein at least one (1) of said plates is formed with a circumferential groove (10) to receive the seal (3),
• wherein said seal (3) is formed with a plurality of projections (14, 20, 814, 30, 31) located at longitudinally spaced positions, with attachment portions (18, 25, 35) at their respective ends extending essentially perpendicularly to the longitudinal direction of the projections of the seal,
• said at least one plate is formed with recesses (19, 21, 33, 34) located laterally of the groove (10) in a direction essentially perpendicular to the groove (10),
• said recesses (19, 21, 33, 34) receiving said attachment portions (18, 25, 35) and being in engagement with said attachment portions;
• and
• in accordance with the invention, said heat exchanger comprising the improvement that the recesses (19, 21, 33, 34) receiving said attachment portions (18, 25, 35) are open to a terminal edge (15) of the rim (R, R') of the plate,
• whereby mounting of the seal (3) by insertion of said attachment portions from outside the heat exchanger is possible.