| 摘要 |
An efficient low pressure drop packing element (10) for exchange columns is made up of a plurality of preformed vertical sheets (12), each having a plurality of inclined rows of adjacent relatively short inclined troughs (18) including valleys (V) and ridges (R) extending between upper inlet edges (20) and lower outlet drip edges (22) and projecting alternatively outwardly from one side (14) and then the opposite side (16) of the median plane of each sheet (12). The sheets (12) are arranged so that the inclined rows of the troughs (18) in adjacent sheets (12) are oppositely inclined and in criss-crossing relation to the inclined rows of the adjacent sheet (12) of the packing element (10) causing frequent changes in direction of liquid flow and whereby the both sides (14, 16) of each sheet (12) are more easily and uniformly wetted by the frequently diverted liquid flowing downwardly over the surfaces thereof. |
