C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
182/20
C02F 1/40 (2006.01) B01D 17/02 (2006.01)
Patent
CA 1121279
ABSTRACT OF THE DISCLOSURE An improved gravitational separator for mixtures of immiscible liquids of different densities, particularly oil and water, includes a reaction member in the form of a dome or diaphragm immersed in more dense liquid to be sepa- rated and which floats upwardly in the more dense liquid under the influence of liquid of less density accumulated beneath the dome or diaphragm. A coalescer screen filter system is provided in the water outlet path in the sepa- rator, the coalescer screens being contained in a chamber provided with automatically operating, one-way, pressure responsive valves to ensure proper flow of water in a forward and backflush sense through the chamber. A flota- tion feature for the reaction member is provided, and the reaction member includes an auxiliary air chamber to pre- vent loss of a minimum desired residual layer of less dense fluid beneath the reaction member when air accumulates in this area. A specific inflow and outflow conduit ar- rangement is provided to minimize turbulence in the sepa- rator. An oil collection system is provided to carry backflushed oil from the coalescer to the inlet conduit of the separator. -1-
294287
Walters Chester H.
Wright David A.
National Marine Service Inc.
Robic Robic & Associes/associates
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