| 摘要 |
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. |
