| 摘要 |
The heat exchanger for cooling towers of power stations, comprises two foil plate elements (12), which are arranged one above the other, curved or structured, lie together at several contact fields (14) and have two holes (24, 26) with projecting edges (28, 30) within one of its contact fields. The edges are put into one another and are flanged with the help of a rivet outwardly on one of the two foil plate elements. |
