US3767174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas scrubber, entrainment separator and combination thereof
Assignee: Fuller Co
•
Filing: 1970-08-27
•
Granted: 1973-10-23
•
Expires: 1990-08-27
Abstract
Abstract A gas scrubber for removing particles carried in suspension by gas is used with or without a specific entrainment separator. The scrubber has (1) a gas-conducting conduit with a portion having an inner surface that diverges in the direction of gas flow, (2) a diverter that is disposed in this portion of the conduit and that has an opposed diverging surface with a greater degree of divergence, and (3) a pipe that feeds scrubbing liquid to that surface of the diverter for flowing liquid into the downward flow of gas. Preferably, the diverter is supported from above and is resiliently urged upwardly so that the diverter is automatically moved by a change in the rate of gas flow. The scrubber provides an annular flow of gas that is changed to a helical downward flow by the specific entrainment separator, disposed below the diverter and having helically-extending elongated plates in a vertical conduit within a chamber. A frustoconical diverter is disposed below the bottom open end of that vertical conduit to change the direction of the gas leaving the vertical conduit. The elongated plates are radially disposed within the vertical conduit and extend in a helical manner about the longitudinal axis of that conduit. Another conduit communicates tangentially with a sidewall opening of the chamber adjacent its top to exhaust the gas from the annulus between the chamber and the vertical conduit. Accumulated liquid is removed from the bottom of the chamber.
Inventors
- 👤 J Heeney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:06
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/12; B01D45/16; Y; Y10; Y10S; Y10S261/00; Y10S261/54
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
256 words
An apparatus for use in the removal of material from a gas by scrubbing with a liquid and separating the resultant liquid particles from the gas in which the liquid becomes entrained, said apparatus including a gas scrubber which comprises: a gas-conducting conduit having a portion that directs the gas downwardly and in which the wall of the conduit has an inner surface that diverges downwardly; a gas-diverting means aligned coaxially in that portion of the gas-conducting conduit and having an upper surface, said upper surface having at least a portion that faces said diverging inner surface of said portion of the conduit and diverges downwardly at a greater rate of divergence than that of said diverging inner surface; means to support said gas-diverting means from above by a downwardly extending rod in said portion of the conduit and spaced from said inner surface; and means to furnish scrubbing liquid to said upper surface comprised of a pipe having a downwardly extending outlet portion in the conduit above the diverging upper surface of the gas-diverting means, and aligned coaxially with said diverting means; said gas-conducting conduit having a cylindrical inner surface portion extending upwardly and a cylindrical inner surface portion extending downwardly from planes transverse to the longitudinal axis of the gas-conducting conduit adjacent the upper and lower ends of said downwardly diverging inner surface portion of said gas-conducting conduit; said diverging inner surface portion being frustoconical; and said gasdiverting means having said upper surface portion extending inwardly from adjAcent the periphery of the upper surface.
Claim 2
Independent Claim
256 words
An apparatus for use in the removal of material from a gas by scrubbing with a liquid and separating the resultant liquid particles from the gas in which the liquid becomes entrained, said apparatus including a gas scrubber which comprises: a gas-conducting conduit having a portion that directs the gas downwardly and in which the wall of the conduit has an inner surface that diverges downwardly; a gas-diverting means aligned coaxially in that portion of the gas-conducting conduit and having an upper surface, said upper surface having at least a portion that faces said diverging inner surface of said portion of the conduit and diverges downwardly at a greater rate of divergence than that of said diverging inner surface; means to support said gas-diverting means from above by a downwardly extending rod in said portion of the conduit and spaced from said inner surface; and means to furnish scrubbing liquid to said upper surface comprised of a pipe having a downwardly extending outlet portion in the conduit above the diverging upper surface of the gas-diverting means, and aligned coaxially with said diverting means; said gas-conducting conduit having a cylindrical inner surface portion extending upwardly and a cylindrical inner surface portion extending downwardly from planes transverse to the longitudinal axis of the gas-conducting conduit adjacent the upper and lower ends of said downwardly diverging inner surface portion of said gas-conducting conduit; said diverging inner surface portion being frustoconical; and said gasdiverting means having said upper surface portion extending inwardly from adjAcent the periphery of the upper surface.
Claim 3
Dependent Claim
112 words
The apparatus of claim 1 wherein said support means for said gas-diverging means includes: a support rod connected at its bottom end to said gas-diverging means and extending upwardly therefrom; and means connected to the upper portion of the rod to provide resilient support to said rod and to said gas-diverting means; said last mentioned means including a pneumatic cylinder having a piston in a cylinder to provide a lower chamber and an upper chamber; and wherein said rod is supported by said piston, whereby automatic vertical movement of said gas-diverting means is attainable upon change in gas flow to adjust automatically the space between the gas-diverting means and the gas-conducting conduit.
Claim 4
Dependent Claim
61 words
The apparatus of claim 2 wherein the difference between the larger included angle of said downwardly diverging upper surface portion of gas-diverting means and the included angle of said downwardly diverging inner surface of the gas-conducting conduit is such that the gas pressure drop remains substantially constant with change in gas flow and automatic change in elevation of the gas-diverting means.
Claim 5
Dependent Claim
61 words
The apparatus of claim 2 wherein the difference between the larger included angle of said downwardly diverging upper surface portion of gas-diverting means and the included angle of said downwardly diverging inner surface of the gas-conducting conduit is such that the gas pressure drop remains substantially constant with change in gas flow and automatic change in elevation of the gas-diverting means.
Claim 6
Dependent Claim
73 words
The apparatus of claim 1 wherein the gas-diverting means has an annular recess in the central part of the upper surface, wherein the support means is a rod that is unitary with said gas-diverting means and that extends upwardly from the upper surface coaxial with the annular recess, and wherein the bottom outlet end of the pipe extends into the annular recess and is spaced from the walls and base of said recess.
Claim 7
Dependent Claim
27 words
The apparatus of claim 1 wherein said upper surface portion has, in planes parallel to the longitudinal axis of the gas-diverting means, generally a ski-jump surface configuration.
Claim 8
Independent Claim
183 words
An apparatus for use in the removal of material from a gas by scrubbing with a liquid, said apparatus comprising: a gas conduit having a first cylindrical portion, a second portion which diverges downwardly and outwardly from said first portion and a third cylindrical portion adjoining said second portion in the direction of gas flow; a gas-diverting means mounted in and coaxially aligned with said gas conduit and having an upper surface diverging downwardly and outwardly from its longitudinal axis at a greater rate of divergence than said second portion and an annular recess in said upper surface coaxially aligned with said gas conduit; means for mounting said gas-diverting means in said second portion of said gas conduit including a support rod connected at its lower end to said gas-diverting means and extending upwardly therefrom; and means for adjusting the longitudinal position of said gas-diverting means in said second portion in response to a change in the volume of gas flowing through said gas conduit; and a pipe for supplying scrubbing liquid to said annular recess; said support rod extending through said pipe.
Claim 9
Independent Claim
183 words
An apparatus for use in the removal of material from a gas by scrubbing with a liquid, said apparatus comprising: a gas conduit having a first cylindrical portion, a second portion which diverges downwardly and outwardly from said first portion and a third cylindrical portion adjoining said second portion in the direction of gas flow; a gas-diverting means mounted in and coaxially aligned with said gas conduit and having an upper surface diverging downwardly and outwardly from its longitudinal axis at a greater rate of divergence than said second portion and an annular recess in said upper surface coaxially aligned with said gas conduit; means for mounting said gas-diverting means in said second portion of said gas conduit including a support rod connected at its lower end to said gas-diverting means and extending upwardly therefrom; and means for adjusting the longitudinal position of said gas-diverting means in said second portion in response to a change in the volume of gas flowing through said gas conduit; and a pipe for supplying scrubbing liquid to said annular recess; said support rod extending through said pipe.
Claim 10
Dependent Claim
35 words
The apparatus of claim 7 where the diverter means comprises an upper surface which has a generally ski-slope configuration and a bottom surface diverging downwardly and inwardly; and said pipe extends into the annular recess.
References Cited (Backward Citations)
FR385275A
Cited
US2252955A
Cited
US2597192A
Cited
US3182977A
Cited
US3085793A
Cited
US3350076A
Cited
US3317197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |