| 摘要 |
PCT No. PCT/SE90/00144 Sec. 371 Date Sep. 20, 1991 Sec. 102(e) Date Sep. 20, 1991 PCT Filed Mar. 7, 1990 PCT Pub. No. WO90/13394 PCT Pub. Date Nov. 15, 1990.The invention relates to a method for the manufacture of a plate heat exchanger/cooler (1), and to an arrangement for a plate heat exchanger/cooler produced by furnace brazing. When finished, the heat exchanger exhibits a number of passageways (2-7) communicating in parallel via collectors (8a) and intended for a fluid which is cooled. Each of the passageways (2-7) consists of a pair of plates (2a, 2b, . . . 7a, 7b) facing one another. These have openings (2a2, 2b2, . . . 7a2, 7b2) arranged on the ends which, in the finished heat exchanger/cooler, constitute the aforementioned collectors (8a). Spacer washers (10) which define flow openings (10a) for a cooling medium are present between pairs of plates situated adjacent one another. The spacer washers (10) and the plates (2a, 2b, . . . 7a, 7b) and the pairs of plates are joined together at least along their outward-folded edges (2a1, 2b1, . . . 7a1, 7b1) by a furnace brazing process. In each passageway (2-7), a space washer (10) and a distance piece (11) are placed in an area on each end before the plates (2a, 2b, . . . 7a, 7b) are brought into edge-to-edge contact with one another. The plates and spacer washers/distance pieces (10;11) are caused by the furnace brazing process to form a solid body (12) on each short side of the heat exchanger/cooler (1). Before or after the furnace brazing process at least one transvers channel (9) for the installation of the heat exchanger cooler (1) is made through each such solid body (12). |
