| 摘要 |
A crown element (3) for securing a packing (2) in a mass transfer column (I), comprises an elongate sheet (4), which comprises a roof element (5), a wall element (6) and a bottom element (7), wherein the wall element (6) is arranged between the roof element (5) and the bottom element (7), such that a first bending line (8) is formed between the roof element (5) and the wall element (6). A second bending line (9) is formed between the wall element (6) and the bottom element (7), wherein the roof element (5) is disposed with a plurality of incisions (15), wherein the bottom element (7) is disposed with a plurality of grooves (17). The number of incisions (15) is smaller than the number of grooves (17). |
