Liquid purification or separation – Tangential flow or centrifugal fluid action
Patent
1995-10-16
1998-05-26
Walker, W. L.
Liquid purification or separation
Tangential flow or centrifugal fluid action
554591, 96212, B01D 4516
Patent
active
057559651
ABSTRACT:
The present invention is a gas/liquid separator which is employed to remove free gases from a liquid. The invention is comprised of two concentric cones with a tapering annulus therebetween. The liquid stream to be de-gassed enters a tangential fluid inlet under pressure and passes downwardly in the tapered annulus. The inner surface of the outer cone has a plurality of stator vanes which minimize turbulence of the liquid and maintains helical motion. The outer surface of the inner cone has a plurality of orifices to receive gas bubbles. The outer surface of the inner cone is preferably roughened to thicken the gas boundary layer of this surface such that gas bubbles are more readily trapped thereon. The unit imparts a downward helical motion to the liquid flow between the outer cone and the inner cone. The spiral motion of the liquid generates centripetal forces that cause the entrained bubbles to migrate toward the inner cone, where they are captured on the surface thereof and passed through the orifices therein where the gases are then vented to atmosphere through the top of the unit.
REFERENCES:
patent: 3161490 (1964-12-01), Dudek
patent: 3282030 (1966-11-01), Griffo et al.
patent: 3359708 (1967-12-01), Barber
patent: 3612140 (1971-10-01), Mott
patent: 3771288 (1973-11-01), Wisman et al.
patent: 3771290 (1973-11-01), Stethem
patent: 4940473 (1990-07-01), Benham
patent: 5203891 (1993-04-01), Lema
HDR Engineering, Inc.
Walker W. L.
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