| 摘要 |
A bubble cap assembly for attachment over an opening in a deck tray of a gas-liquid contact apparatus. The bubble cap assembly comprises a riser located over an opening providing fluid communication from a lower surface of the deck tray to an upper surface. A bubble cap encompasses an upwardly extending end of the riser and has an opening located in a top portion thereof. A retainer member is disposed within a passageway in the riser. The retainer member has outwardly extending end portions for engaging a lower surface of the deck tray and an upwardly extending shaft portion with a slot adjacent its upper end. A locking means is provided which comprises a wedge for tightly urging the bubble cap, spacer means and riser member against an upper surface of the deck tray and urging the lower outwardly extending end portions of the retainer member against the lower surface of the deck tray.
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