Fluid sprinkling – spraying – and diffusing – Combining of separately supplied fluids – Fluid streams have angular junction
Patent
1997-12-15
1999-12-21
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Combining of separately supplied fluids
Fluid streams have angular junction
239 8, 239398, 239426, 239432, 239589, B05B 704
Patent
active
06003789&
ABSTRACT:
Mixing means, for producing a flow mixture of oil and steam, is combined with an atomizing nozzle to provide a nozzle assembly which produces a jet of very fine oil droplets. The nozzle assembly is used in conjunction with a reactor, such as a fluidized bed coker. The mixing means comprises a pipe, external of the reactor, having separate, spaced apart inlets for oil and steam. The steam inlet is upstream of the oil inlet. A reducing diameter nozzle is positioned in the pipe bore between the inlets, for accelerating the steam. The steam contacts the oil and turbulently moves down the pipe bore to produce what is known as a "bubbly flow" mixture. The mixture is fed to the nozzle, which is internal of the reactor. The nozzle has: an inlet; a first contraction section of reducing diameter for accelerating the flow, preferably to supersonic velocity, whereby the droplets are reduced in size; a diffuser section of expanding diameter wherein the mixture decelerates and a shock wave may be induced; a second contraction section operative to accelerate the mixture more than the first contraction section; and an orifice outlet for producing a jet or spray. The nozzle assembly has been shown to reduce droplet size from about 12,000 .mu.m to about 300 .mu.m.
REFERENCES:
patent: 3565593 (1971-02-01), Moore Jr.
patent: 4086772 (1978-05-01), Williams
patent: 4097366 (1978-06-01), Tanaka et al.
patent: 4103827 (1978-08-01), Kumazawa
patent: 4134547 (1979-01-01), Gamst
patent: 4426213 (1984-01-01), Stavropoulos
patent: 4650566 (1987-03-01), Buyan et al.
patent: 4824016 (1989-04-01), Cody et al.
patent: 5004152 (1991-04-01), Baker et al.
patent: 5092981 (1992-03-01), Russo
patent: 5108583 (1992-04-01), Keon
patent: 5300216 (1994-04-01), Hertzberg et al.
Elements of Gasdynamics, by H.W. Liepmann et al., Galcit Aeronautical Series, J. Aeronaut, Sci., 20 (1953), 617, pp. 131-136.
Compressible Fluid Flow, by Patrick H. Oosthuizen et al., The McGraw-Hill Companies, Inc., Chapter 8: Variable Area Flow, pp. 211-213.
Osborne Reynolds and Engineering Science Today, Jack Allen et al., Manchester University Press, Barnes & Noble, Inc., New York, pp. 152-154.
Propagation Velocity of Pressure Waves in Gas-Liquid Mixtures, Henry et al., pp. 1-6.
Base Terence E.
Chan Edward W.
Emberley Douglas A.
Kennett R. Douglas
AEC Oil Sands Limited Partnership
AEC Oil Sands, L.P.
Athabasca Oil Sands Investments Inc.
Canadian Occidental Petroleum Ltd.
Canadian Oil Sands Investments Inc.
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