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US4299703A Expired / Lapsed US ⏱️ 0.0 years remaining

Separator for separating a mixture of two liquids

Assignee: Alstom SA
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Filing: 1980-05-23
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Granted: 1981-11-10
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Expires: 2000-05-23
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Abstract

Abstract The invention relates to a separator for separating a mixture of two immiscible liquids of different densities, one of these being dispersed in the other. The separator which includes, superposed in a cylindrical tank, an injection chamber for injecting the mixture disposed between a coalescence chamber and a collecting chamber for collecting the dispersed component. The injection chamber (2) communicates with the coalescence chamber (3) via an annular passage (72) formed between the wall of the tank (1) and the periphery of a deflector (7) which separates said chambers and is also surmounted by funnels (70) which make the coalescence chamber communicate with the collecting chamber. The invention applies in particular to the treatment of bilge water on board ships or to the treatment of ballast water on board oil tankers.

Inventors

  • 👤 Christian Bezard
  • 👤 Patrick Deroyer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 19:27
CPC Classifications
B; B04; B04C; B04C9/00; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0211; B01D17/0217

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 205 words
A separator for separating a mixture of two immiscible liquids of different densities, one of these being dispersed in the other, said separator including, superposed in a cylindrical tank, an injection chamber for injecting the mixture and disposed between a coalescence chamber and a collecting chamber for collecting the dispersed component, a tubular collector for collecting the continuous phase, said coalescence chamber being arranged concentrically around said tubular collector, a deflector separating said coalescence chamber and said injection chamber and forming an annular passage for communicating said injection chamber with the coalescence chamber, said annular passage being formed between the wall of the tank and the periphery of said deflector, funnels surmounting said deflector for communicating the coalescence chamber with the collecting chamber, said injection chamber being provided with a static central injector having vanes for imparting a centrifugal rotating motion to the mixture, a first pipe penetrating the collector and extending axially therethrough for feeding the mixture of the two liquids and opening to the vanes of said static central injector, a second pipe situated at the top of the tank for evacuation of the dispersed phase and a third pipe opening to the base of the collector for evacuation of the continuous phase.
Claim 2
Dependent Claim 205 words
A separator for separating a mixture of two immiscible liquids of different densities, one of these being dispersed in the other, said separator including, superposed in a cylindrical tank, an injection chamber for injecting the mixture and disposed between a coalescence chamber and a collecting chamber for collecting the dispersed component, a tubular collector for collecting the continuous phase, said coalescence chamber being arranged concentrically around said tubular collector, a deflector separating said coalescence chamber and said injection chamber and forming an annular passage for communicating said injection chamber with the coalescence chamber, said annular passage being formed between the wall of the tank and the periphery of said deflector, funnels surmounting said deflector for communicating the coalescence chamber with the collecting chamber, said injection chamber being provided with a static central injector having vanes for imparting a centrifugal rotating motion to the mixture, a first pipe penetrating the collector and extending axially therethrough for feeding the mixture of the two liquids and opening to the vanes of said static central injector, a second pipe situated at the top of the tank for evacuation of the dispersed phase and a third pipe opening to the base of the collector for evacuation of the continuous phase.
Claim 3
Dependent Claim 65 words
A separator according to claim 1, wherein the coalescence chamber includes a series of frustoconical coalescence plates which bear on said collector and are inclined at about 35° with respect to the vertical in the direction of the injection chamber and form a gap between adjacent coalescence plates which communicate with said collector via orifices within said collector in which there is loss of head.
Claim 4
Dependent Claim 18 words
A separator according to claim 2, wherein the funnels are aligned with the periphery of the coalescence plates.
Claim 5
Dependent Claim 36 words
A separator according to claim 1, wherein the deflector is constituted by a frustoconical plate disposed parallel to the coalescence plates with its periphery including a rim extending beyond the funnels, said rim being inversely inclined.
Claim 6
Dependent Claim 19 words
A separator according to claim 4, wherein the injector is disposed in the central conical part of the deflector.
Claim 7
Dependent Claim 22 words
A separator according to claim 2, wherein the central part of the collector being said first pipe for supplying the static injector.
Claim 8
Dependent Claim 28 words
A separator according to claims 1 or 6, wherein the collecting chamber for collecting the dispersed component is cylindrical and is disposed in line with the injection chamber.
Claim 9
Dependent Claim 35 words
A separator according to claims 1 or 6, wherein the volume of the coalescence chamber is of the same order of magnitude as the total volume of the injection chamber and of the collecting chamber.

References Cited (Backward Citations)

FR553165A Cited
US2479126A Cited
FR1230382A Cited
US3510006A Cited
US3666108A Cited
US3718257A Cited
US3797203A Cited
DE2507190A1 Cited
DE2540264B2 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-11-09 1985-05-11 1985-11-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-11-09 1989-05-11 1989-11-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-11-09 1993-05-11 1993-11-10 $7700.00 Window Closed / Lapsed

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