DEVICE FOR UNIFORM DISTRIBUTION OF VAPOUR IN HEAT EXCHANGE AND MASS TRANSFER COLUMNS Russian patent published in 2008 - IPC B01D3/32 B01F3/04 

FIELD: engines and pumps.

SUBSTANCE: vapour guiding device (30) used in elongated, mainly, vertical mass transfer and/or heat exchange columns (10) with an inner space (16) containing an elongated, normally arc-like wall (32) arranged so that it stays inside the inner space (16) and runs along the column lengthwise axis. The arc-like wall (32) incorporates an inlet zone arranged to contact with a vapour flow or a mixed phase flow entering the column (10) and to force the flow to follow along the outer surface (132) of the arc-like wall (32), primarily around the axis. The device incorporates also the main elongated blade (36a) extending outward from the outer surface (132) of the arc-like wall (32). The main blade (36a) has an inner edge (136a), arranged nearby the outer surface (132) of the inner wall (32) and an outer edge (236a) arranged at a distance from the outer surface (132) of wall (32). Blade (36a) is arranged tangentially to the flow direction so that the inner edge (136a) of blade (36a) runs more downstream relative to the blade outer edge (236a), which allows whatever part of the flow being incident on the main blade (36a) to be redirected to the outer surface (132) of arc-like wall (32). The device (30) incorporates, preferably, one or more blades (36b) extending radially outward from the outer wall (132).

EFFECT: improved vapour distribution across the column.

12 cl, 4 dwg