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US 2004/0182555 A1Published application
Heat exchanger device and a method for manufacturing the same
AssigneeRekuperator Svenska AB
InventorsGunnar Lagerstrom, Max Xie
Life of this patent
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AssigneeRekuperator Svenska AB
InventorsGunnar Lagerstrom, Max Xie
Estimating the term…
Method and device for providing a plate heat exchanger (1) having a number of corrugated plates (2). Between the corrugated plates (2) first and second flow channels (7, 8) are arranged, which first flow channels (7), via first inlet openings (11) and first outlet openings (12), are connected essentially parallel to in-going and out-going junction channels (13, 14). The plates (2) are fitted to each other in pairs, forming cells (15) including an inner spacing element (16) welded to and between the plates, and outer spacing elements (17) welded to the plates (2) on the sides of the plates (2) facing away from each other, along at least two of the edge parts (3-6). The cells (15) are stacked against each other and joined together by welding of the outer spacing elements (17), and in that said in-going and out-going junction channels (13, 14) are welded to said first inlet openings (11) and first outlet openings (12) respectively.
Plate heat exchanger (1) device advantageously intended for use with a gas turbine, comprising a number of corrugated plates (2), each one with a first edge part (3) with an opposing second edge part (4), a third edge part (5) with an opposing fourth edge part (6), in which first and second flow channels (7, 8) are arranged between the corrugated plates (2), every first flow channel being arranged to have a through flow of a heat-emitting medium (9) and every second being arranged to have a through flow of a heat absorbing medium (10), the first flow channels for one of the mediums, advantageously the heat absorbing medium (10) are, via first inlet openings (11) and first outlet openings (12), respectively, connected essentially parallel to in-going and out-going junction channels (13, 14) for said heat absorbing medium (10), wherein that the plates (2) are fitted to each other in pairs, forming cells (15) comprising an inner spacing element (16) welded to and in-going between the plates, where the inner spacing element (16) extends along the edge parts (3-6) with interruption for the first inlet opening (11) and the first outlet opening (13) for one of the mediums, advantageously the heat-absorbing medium (10), where outer spacing elements (17) are welded to the plates (2) on the sides of the plates (2) facing away from each other, along at least two of the edge parts (3-6), the cells (15) are stacked against each other and joined together by welding via the outer spacing elements (17), and said in-going and out-going junction channels (13, 14) are welded to said first inlet opening (11) and first outlet opening (12), respectively.
Plate heat exchanger (1) device according to claim1, wherein the welding refers to laser welding.
Method for manufacturing a heat exchanger (1) device advantageously intended for use with a gas turbine, wherein a number of corrugated plates (2), each one with a first edge part (3) with an opposing second edge part (4), a third edge part (5) with an opposing fourth edge part (6), are arranged in such a way that first and second flow channels (7, 8) are arranged between the corrugated plates (2), where every first flow channel is arranged to have a through flow of a heat-emitting medium (9) and every second is arranged to have a through flow of a heat absorbing medium (10), wherein the first flow channels (7) for one of the mediums, advantageously the heat absorbing medium (10), are brought to parallel communication with in-going and out-going junction channels (13, 14) respectively, via first inlet openings (11) and first outlet openings (12), for said one of the mediums, wherein cells (15) are formed by;
Dependencies are inferred from the claim text.