COLUMN FOR EXCHANGING HEAT AND MASS BETWEEN GAS OR VAPOR AND LIQUID

摘要

A column for heat- and mass exchange between gas or steam and liquid comprises contact plates mounted in a casing in a superposed relation to one another, the plates being divided into sections which comprise individual portions of the contact plate raised above the remaining surface thereof. Apertures are made in the sections for the passage of gas and are provided with arched apron plates extending within each section tangentially to the center thereof and in the same direction in such a manner that rotary motion of two-phase gas and liquid flows in the adjacent sections occurs in opposite directions. The sections are arranged in plan in such a manner that their centers are located substantially over an intersection space of lower contact plates. For overflow of liquid from upper contact plates to the sections of lower contact plates there are provided overflow pipes having inlet openings located in the intersection spaces of upper contact plates and outlet openings located over solid central portions of the sections of lower contact plates.