| 摘要 |
The present invention refers to a plate heart exchanger (1) device and a method for producing said plate heat exchanger (1), comprising a number of corrugated plates (2). Between the corrugated plates (2) first and second flow channels (7, 8) are arranged, where the first flow channels, via first inlet openings (11) and first outlet openings (12), are connected essentially parallel to in- and outgoing junction channels (13, 14). The invention is characterised in that the plates (2) are fitted to each other in pairs, forming cells (15) comprising 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 joint together by welding via the outer spacing elements (17), and said in- and outgoing junction channels (13, 14) are welded to said first inlet openings (11) and first outlet openings (12) respectively.
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