Vapour-liquid contact apparatus and method of fabricating grid-elements for use in such apparatus.

摘要

A vapour-liquid contact grid apparatus which maximises the generation of small drops consists of multiple layered grids, each grid being formed of upright grid elements (30) and connectors (20). The grid elements (30) have vanes (32, 34, 36, 38) formed from the member itself by a process of slitting and bending, which vanes extend out into the region between the upright grid elements to restrict vapour passage and provide drip points to increasing the effective surface area for gas-liquid exchange. A method of manufacture provides for the grid elements (30) to be formed in a die press and to be provided with slots alternatingly along their top and bottom edges to receive the edges of connectors (20) which support a plurality of the guide elements and form with the said elements a simple yet sturdy, grid. The vanes may be defined by serrated cuts extending longitudinally of the grid elements.