Gas and liquid contact apparatus – Contact devices – Wet baffle
Patent
1994-03-23
1995-10-03
Miles, Tim R.
Gas and liquid contact apparatus
Contact devices
Wet baffle
2611145, B01F 304
Patent
active
054549892
ABSTRACT:
Vapor-liquid contact apparatus includes a plurality of substantially horizontal trays which are vertically spaced in a vessel. Liquid and vapor-liquid mixtures flow horizontally across the trays, over weirs, and vertically through downcomers to subsequent trays. Each tray has a bubble area with apertures which permit ascending vapors to flow into the vapor-liquid mixture supported on the tray. Each downcomer has an apertured bottom wall which is horizontally coextensive with an unapertured downcomer seal area on the tray therebelow. The downcomer seal area and a portion of the apertured bubble area are elevated with respect to a major portion of the tray's upper surface area. The tray has two outboard panels with integral flanges at their edges, and the upstream ends of these integral flanges are supported on a stationary truss in the vessel. To promote deentrainment of vapor from the mixture in the downcomer, a perforated sheet with inclined corrugations is positioned substantially vertically in the downcomer.
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