Low pressure process for entraining gas into liquid solution and

Details Low pressure process for entraining gas into liquid solution and Low pressure process for entraining gas into liquid solution and

1993-07-09

1995-04-04

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

261DIG75, 417196, F04D 700

Patent

active

054031516

ABSTRACT:
The invention is a method for entraining gas in a liquid solution and an apparatus for practicing the method. In the method of the invention, gas is introduced into a liquid solution being pumped through a conduit at the point of lowest absolute pressure in the system upstream of the pumping means. The gas is introduced into the liquid as bubbles or gas pockets with as small a diameter as is mechanically possible at the narrowest point of a venturi in the conduit and the increasing liquid pressure in the system downstream of the venturi is utilized to compress the bubbles still further. The bubbles or pockets of gas are prevented from coalescing as they pass through the pumping means and exit the apparatus by the pumping means itself. The apparatus comprises a conduit having a passageway therethrough in which a venturi is formed. An annular chamber is provided in the body of the conduit at the narrowest point of the venturi where the gas is introduced into the liquid. The gas is introduced upstream of a pumping means, which utilizes a shear force to prevent the bubbles from coalescing as the liquid exits the apparatus through the pumping means.

REFERENCES:
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patent: 4037991 (1977-07-01), Taylor
patent: 4230570 (1980-10-01), Irving
patent: 4230648 (1980-10-01), Leeuwrik
patent: 4259267 (1981-03-01), Wang
patent: 4690756 (1987-09-01), Van Ry
patent: 4710325 (1987-12-01), Cramer et al.
patent: 5261783 (1993-11-01), Noyes

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