C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/3
C02F 3/28 (2006.01)
Patent
CA 1141871
LIQUID CIRCULATING DEVICE ABSTRACT An apparatus is provided for causing circulation within a large body of fluid. The apparatus comprises a "large bubble" generator exposed to the pressure of the fluid at a predetermined level, a vertically extending standpipe, an inverted siphon between the standpipe and the generator, and a transverse connection between the standpipe and a vertically extending stackpipe. Upon generating a large gas bubble into the stackpipe, the gas acts as a piston within the stackpipe, pushing liquid upwardly there- through, and thereby drawing liquid into the bottom. The continuous passage of such large bubbles through the stackpipe results in a current flow circulation through the large standing body of liquid. The advantage of the present type of large bubble generator, is that the generator can be placed at a position beneath the surface of the standing body of liquid a distance limited only by the rapidity at which a large bubble can be generated, as it is desirable that in steady state operation, a large bubble enter the stackpipe before the preceding large bubble has exited from the top.
345044
Atara Corporation
Swabey Ogilvy Renault
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