Column apparatus for gas-liquid heat and mass exchange processes

摘要

A column apparatus for gas-liquid heat and mass exchange processes comprising contact plates arranged one above another, and provided with slots for the passage of gas therethrough. The contact plates are surrounded by annular pockets for discharging liquid flowing off the contact plates. The discharge of liquid from the annular pocket of an upper contact plate to the contact plate therebelow is effected through discharge pipes, the top ends of which are in communication with the annular pocket of the upper contact plate, the bottom ends thereof terminating slightly above the top surface of a solid center portion of the lower plate and being surrounded by two coaxial rings. These rings are also slightly above the top surface of the center portion of the contact plate in such a manner, that as the liquid is being discharged, there is formed a hydroseal without any stagnant areas.