| 摘要 |
The packing elements are made of a strip of foil-like material which has at least one trickle surface for a descending flow of liquid. This surface is provided with alternating smooth portions and finely-fluted portions which extend over a height of at least five millimeters. In addition, at least the smooth portions are perforated. The packing element may be formed of a plurality of flat corrugated plates, or may be spirally wound from a continuous strip to form an ordered packing or may be in the form of cylinders to form a random packing. |
