Gas and liquid contact apparatus – Contact devices – Liquid spray
Patent
1979-10-10
1982-01-12
Chiesa, Richard L.
Gas and liquid contact apparatus
Contact devices
Liquid spray
99453, 99467, 99483, 137 88, 239561, 239566, 261 64B, 261115, 261116, 261129, 261131, 426521, 426522, B01F 304
Patent
active
043104762
ABSTRACT:
An apparatus for heating fluids to a relatively high temperature, such as sterilization temperature, in which the fluid, such as a liquid, is heated by direct contact with steam while it is in the form of a very thin, free-falling film or a continuous falling stream so that heating of the fluid is accomplished without the fluid coming into contact with any surface and particularly metal surfaces which are hotter than the fluid product being heated and with minimum agitation and turbulence of the fluid product. This procedure enables maximum and uniform heat penetration in a minimum time interval with the film or stream being maintained as thin as possible and unbroken by introducing steam at a relatively low velocity in a large volume vessel. A flow control is incorporated into the apparatus to maintain a constant flow rate of fluid and to maintain a constant and critical fluid level in the bottom portion of the large volume vessel with the flow characteristics of the apparatus and the internal forces produced by the apparatus serving to counterbalance each other to provide a relatively simple but yet accurate flow rate and liquid level controls for the fluid being heated.
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Leviton et al., "Practical Reduction of Orthokinetic Flocculation in Processing of Sterile Milk Concentrates"; Journal of Dairy Science, vol. XLVIII, No. 8, (Aug. 1965), pp. 1001-1009.
Nahra John E.
Woods Walter
Chiesa Richard L.
DASI Industries, Inc.
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