| 摘要 |
<p>The invention relates to a plate heat exchanger and a method for its manufacture. Round, corrugated heat-transfer plates are made of round plate blanks in a pressing tool (1) having protuberances (3) or grooves (4) on the surface for forming the corrugations. The locations of flow openings can be selected by means of filling pieces (9) that are positioned in spaces (5) provided for them, depending on whether a flow opening or a normal corrugation is to be formed in a specific location. The method is intended for manufacturing plate heat exchangers where the ridges of plates placed on top of each other are crosswise, and the angle between them can be selected as desired.</p> |
