Patent US3885934A successfully refreshed from Google Patents.
US3885934A
Expired / Lapsed
US
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Centrifugal tuyere for gas separator
Assignee: Heat/Fluid Engineering Corp
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Filing: 1973-06-19
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Granted: 1975-05-27
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Expires: 1993-06-19
Abstract
Abstract A multi-bladed tuyere for imparting a helical motion to a moving gas stream is disclosed. The blades of the tuyere overlap in axial projection so that there is no through open area, and the gas stream thereby impinges the blades. The trailing edge of each blade includes a lip which projects in an upstream direction to trap liquids impinging the blades and causes them to drain radially outwardly. The lip terminates short of the outermost end of the blade causing the trapped liquid to flow off of the blade and onto the vessel wall.
Inventors
- 👤 Ralph Eads
- 👤 Charles Langdon Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:47
CPC Classifications
B; B04; B04C; B04C3/00; B01; B01D; B01D45/00; B01D45/12; B04C2003/006
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
189 words
A centrifugal tuyere for removing entrained liquids from a gas stream, comprising, a plurality of blades extending radially with respect to the central longitudinal axis of the tuyere, each of said blades having upstream and downstream faces which are inclined with respect to planes which lie perpendicular to the central longitudinal axis of the tuyere to impart a rapid helical motion to the gas stream deflected thereby, each of said blades having a leading edge at its upstream end and a trailing edge at its downstream end, each blade having a lip extending along its trailing edge, said lip projecting in an upstream direction therefrom to make an acute angle with said blade to trap liquid which is on the blade and lead the trapped liquid radially outwardly on the blade, said lip terminating at a point radially inwardly of the outer edge of the blade to provide the outer end of the blade with an unobstructed liquid draining space located to permit liquid trapped by the lip to be released from the blade to impinge upon and flow along the inner wall of a vessel housing the tuyere.
Claim 2
Dependent Claim
189 words
A centrifugal tuyere for removing entrained liquids from a gas stream, comprising, a plurality of blades extending radially with respect to the central longitudinal axis of the tuyere, each of said blades having upstream and downstream faces which are inclined with respect to planes which lie perpendicular to the central longitudinal axis of the tuyere to impart a rapid helical motion to the gas stream deflected thereby, each of said blades having a leading edge at its upstream end and a trailing edge at its downstream end, each blade having a lip extending along its trailing edge, said lip projecting in an upstream direction therefrom to make an acute angle with said blade to trap liquid which is on the blade and lead the trapped liquid radially outwardly on the blade, said lip terminating at a point radially inwardly of the outer edge of the blade to provide the outer end of the blade with an unobstructed liquid draining space located to permit liquid trapped by the lip to be released from the blade to impinge upon and flow along the inner wall of a vessel housing the tuyere.
Claim 3
Dependent Claim
71 words
The centrifugal tuyere of claim 1 in combination with a vessel housing the centrifugal tuyere, an inlet pipe which is axially aligned with the centrifugal tuyere and positioned to direct a gas stream with entrained liquids on the upstream end of the centrifugal tuyere, a gas outlet pipe which is axially aligned with the centrifugal tuyere and downstream thereof, and a liquid collection area located radially outside the gas outlet pipe.
Claim 4
Dependent Claim
24 words
The centrifugal tuyere of claim 1 wherein the lips lie in planes which are substantially parallel to the central longitudinal axis of the tuyere.
Claim 5
Dependent Claim
24 words
The centrifugal tuyere of claim 1 wherein the lips lie at an angle of about 30* to 60* with respect to their respective blades.
Claim 6
Dependent Claim
25 words
The centrifugal tuyere of claim 1 wherein the blades are set at an angle of about 45* with respect to the axis of the tuyere.
Claim 7
Dependent Claim
24 words
The centrifugal tuyere of claim 5 wherein the lips lie at an angle of about 30* to 60* with respect to their respective blades.
Claim 8
Dependent Claim
24 words
The centrifugal tuyere of claim 5 wherein the lips lie in planes which are substantially parallel to the central longitudinal axis of the tuyere.
Claim 9
Dependent Claim
24 words
The centrifugal tuyere of claim 7 wherein the lips lie at an angle of about 30* to 60* with respect to their respective blades.
Claim 10
Dependent Claim
160 words
The improvement in a gas separator for use in removing entrained liquids from a gas stream, including: a separator chamber, an inlet tube directing the gas stream into the chamber, a centrifugal tuyere Mounted in the chamber in an extension of the inlet tube, the tuyere including a plurality of symmetrical inclined blades extending from the center radially outwardly, the trailing edge of each blade having a liquid trapping lip extending therealong and therefrom defining therewith a trough to trap liquid, said lip being spaced from the inner surface of said chamber to define, a liquid draining outlet at the radially outward end of each lip, said liquid draining outlet being located to release liquid for impingement upon the inner wall of the separator chamber, a liquid collecting tube extending from the tuyere, a coaxial gas outlet tube mounted within the liquid collecting tube downstream from the tuyere, and means arranged to remove collected liquid from the liquid collecting tube.
Claim 11
Dependent Claim
160 words
The improvement in a gas separator for use in removing entrained liquids from a gas stream, including: a separator chamber, an inlet tube directing the gas stream into the chamber, a centrifugal tuyere Mounted in the chamber in an extension of the inlet tube, the tuyere including a plurality of symmetrical inclined blades extending from the center radially outwardly, the trailing edge of each blade having a liquid trapping lip extending therealong and therefrom defining therewith a trough to trap liquid, said lip being spaced from the inner surface of said chamber to define, a liquid draining outlet at the radially outward end of each lip, said liquid draining outlet being located to release liquid for impingement upon the inner wall of the separator chamber, a liquid collecting tube extending from the tuyere, a coaxial gas outlet tube mounted within the liquid collecting tube downstream from the tuyere, and means arranged to remove collected liquid from the liquid collecting tube.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |