Gas and liquid contact apparatus – Contact devices – Porous mass
Patent
1990-03-13
1991-05-07
Miles, Tim
Gas and liquid contact apparatus
Contact devices
Porous mass
29463, B01F 304
Patent
active
050134914
ABSTRACT:
In a gas-liquid contact apparatus, liquid is distributed onto packing media by vertical flow tubes mounted on a horizontal deck. Each flow tube has a beveled upper end, an upper portion above the deck provided with one or more vertical slots for admitting liquid into the tube, and a lower portion extending below the deck for releasing liquid onto the packing media. The lower portion of the tube may have internal vertical louvers and a nontubular depending tail portion. The tube is precisely immovably secured in both orientation and elevation to the deck by an external circumferential rib bearing against the upper surface of the deck, and one or more staking protrusions that bear against the lower surface of the deck. The tube is made from a flat blank of sheet material which has a first pair of opposed edges provided with locking tabs, a second pair of opposed edges that eventually form the top and bottom ends of the tube, and a rib that is generally perpendicular to the first pair of opposed edges. The blank is deformed to form a tube in which the locking tabs engage each other and the rib is positioned externally and circumferentially. The tube is inserted in a deck opening until the rib engages the upper surface of the deck, and the tube is locked in its precise final position by protrusions that engages the lower surface of the deck. The tubes are field-replaceable.
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