Abstract: Plate suitable for acting as a bulkhead between two fluids flowing in a plate heat exchanger, the plate having a plurality of corrugations each having a bottom crest line and a top crest line, all or part of the corrugations locally having stiffeners formed by a substantial and local reduction of the height of the top crest line, the stiffeners being arranged in a first group of stiffeners distributed on the plate along at least one first line parallel to a diagonal of the plate, the diagonal being perpendicular to the crest lines of the corrugations, the stiffeners of the first group being alternately arranged on either side of the first line on each consecutive corrugation, wherein the distance measured perpendicularly to the first line between the center of the stiffeners of the first group and the first line is the same for each stiffener of the first group.

Abstract: Plate (1) intended to form a partition between two fluids circulating inside a welded heat exchanger, the plate (1) having a plurality of undulations (2) characterized in that all or part of the undulations (2) has, on at least one upper crest line (3), at least one preferred contact area (4) that has a height above a nominal height of the undulations (2) of the plate (1), the at least one preferred contact area (4) being intended to come into contact with a lower crest line of an undulation of another plate provided above the plate (1) and to be deformed when the exchanger is manufactured.

Abstract: Plate (1) suitable for acting as a bulkhead between two fluids flowing in a plate heat exchanger, the plate (1) having a plurality of corrugations (2) each having a bottom crest line and a top crest line, all or part of the corrugations (2) of the plate (1) locally having stiffeners (5) formed by a substantial and local reduction of the height of the top crest line, the stiffeners (5) being arranged in a first group (20) of stiffeners (5) distributed on the plate (1) along at least one first line (6) parallel to a diagonal (10) of the plate (1), the diagonal (10) being perpendicular to the crest lines (3, 4) of the corrugations (2), the stiffeners (5) of the first group (20) being alternately arranged on either side of the first line (6) on each consecutive corrugation (2), wherein the distance measured perpendicularly to the first line (6) between the centre of the stiffeners (5) of the first group (20) and the first line (6) is the same for each stiffener (5) of the first group (20).

Abstract: Plate (1) intended to form a partition between two fluids circulating inside a welded heat exchanger, the plate (1) having a plurality of undulations (2) characterised in that all or part of the undulations (2) has, on at least one upper crest line (3), at least one preferred contact area (4) that has a height above a nominal height of the undulations (2) of the plate (1), the at least one preferred contact area (4) being intended to come into contact with a lower crest line of an undulation of another plate provided above the plate (1) and to be deformed when the exchanger is manufactured.

Abstract: The invention refers to a heat exchanger plate (4) for a plate heat exchanger, a plate package, and a plate heat exchanger. The plate includes an edge, which extends around the plate, an edge area (6) which extends around the plate inside the edge, and a heat exchanging surface (5) with a corrugation of ridges and valleys which extend in at least a first direction (A, B) over the plate (4). Furthermore, the plate includes a support area (41), which extends around the heat exchanging surface (5) inside the edge area (6) and includes a corrugation of ridges (42) and valleys (43).

Abstract: The invention refers to a heat exchanger plate (4) for a plate heat exchanger, a plate package, and a plate heat exchanger. The plate includes an edge, which extends around the plate, an edge area (6) which extends around the plate inside the edge, and a heat exchanging surface (5) with a corrugation of ridges and valleys which extend in at least a first direction (A, B) over the plate (4). Furthermore, the plate includes a support area (41), which extends around the heat exchanging surface (5) inside the edge area (6) and includes a corrugation of ridges (42) and valleys (43).

Abstract: A plate heat exchanger comprises a plate package (2) of heat transfer plates (3) provided with ports (12), which is arranged between two frame plates (4, 5), at least one (4) of the frame plates being provided with connection pipes (7). The invention concerns a support arrangement to avoid bending of a portion that surrounds each of the ports (12) of an outer heat transfer plate (10) in the plate package (2). Each connection pipe (7) on its inside is provided with a lining (9), which is radially movable in the connection pipe (7) and permanently connected with the outer heat transfer plate (10) around its relevant port (12). The support arrangement is constituted by a ring (14) arranged around the lining (9). The ring (14) supports the outer heat transfer plate (10) and abuts against a support surface, which is fixed in relation to the frame plate (4).

Abstract: The invention relates to a composition and a method for producing a finely ground powder of sponge-iron and hard-phase material.