B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 3/20 (2006.01) B01D 3/16 (2006.01) B01D 3/22 (2006.01) B01D 3/24 (2006.01)
Patent
CA 2241536
A vapor-liquid contact tray (18) and downcomer assembly (24) is provided with ramps (140) which serve to impart a horizontal directional flow to the liquid exiting the downcomer and/or the vapor passing through the tray. The downcomer includes a bottom plate (30) which closes the outlet region of the downcomer and includes a plurality of ramps which redirect the downwardly flowing liquid to include a horizontal component in the direction of liquid flow across the underlying tray. The downcomer receiving area in the underlying tray can include valves (58) having floating caps (60) which shield the associated openings (62) in the tray (18) against liquid weeping and redirect the vertical movement of the vapor streams to a generally horizontal momentum.
Cet ensemble plateau (18) et trop-plein (24), destiné à la mise en contact de vapeur et de liquide, est pourvu de rampes (140) servant à donner une direction d'écoulement horizontal au liquide sortant du trop-plein et/ou à la vapeur passant à travers le plateau. Le trop-plein comporte une plaque de fond (30), laquelle ferme la région de l'orifice de sortie du trop-plein et comporte une pluralité de rampes servant à réorienter le liquide s'écoulant vers le bas, afin de comprendre un élément horizontal dans la direction de l'écoulement du liquide sur le plateau sous-jacent. La zone de réception du trop-plein du plateau sous-jacent peut comporter des clapets (58) présentant des couvercles flottants (60), lesquels forment une protection, sur les ouvertures associées (62) du plateau (18), contre tout épanchement de liquide, et servent à réorienter le mouvement vertical des jets de vapeur, afin d'obtenir une énergie cinétique généralement horizontale.
Griffith Verne E.
Hsieh Chang-Li
Yeoman Neil
Kgi Inc.
Koch Engineering Company Inc.
Smart & Biggar
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