Gas and liquid contact apparatus – Fluid distribution – Pumping
Patent
1995-08-23
1998-08-18
Nguyen, Khanh P.
Gas and liquid contact apparatus
Fluid distribution
Pumping
261 77, 261 85, 261 86, 261 87, B01F 304
Patent
active
057955042
ABSTRACT:
An apparatus includes a hollow shaft (6) with water jet vacuum pumps peripherally attached to the end thereof at a certain distance therefrom wherein the water pumps have vacuum pockets (3) communicating with the inside of the hollow shaft via ducts (5). The lower portion of the shaft is plugged, and its upper portion has peripheral perforations (8) providing free access for air or gas flowing into the shaft so that the air or gas can reach the vacuum pockets of the water pumps. The top end of the shaft is coupled to an electric motor (9) either directly or via a motor reducer (10). When the shaft and the water pumps are rotating within a liquid, the liquid pressure at the tips (2) of the water pumps create a vacuum, whereby fine bubbles of air or gas can be fed into and diffused through the liquid at a submerged depth of the water pumps.
REFERENCES:
patent: 1779181 (1930-10-01), McDonald
patent: 2743914 (1956-05-01), Epprecht
patent: 3400918 (1968-09-01), MacLaren
patent: 4188287 (1980-02-01), Faulkner et al.
patent: 4283357 (1981-08-01), Sidery
patent: 4426068 (1984-01-01), Gimond et al.
Kasper Horst M.
Nguyen Khanh P.
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