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US3822984A Expired / Lapsed US ⏱️ 0.0 years remaining

Flare gas burner

Assignee: COMBUSTION UNLIMITED INC US
•
Filing: 1973-09-10
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Granted: 1974-07-09
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Expires: 1993-09-10
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Abstract

Abstract A flare gas burner for waste combustible gases from oil refineries and the like is disclosed which includes an outer stack pipe for high pressure gases having at the top thereof a plurality of outwardly extending tilted vanes with gas delivery slots, the tops of the vanes being angularly disposed in a plane with respect to radial lines through the center of the stack pipe for a swirling action of the burning gas. An optional supply of high pressure assist gas can be provided for low flow rates of high pressure gas. A supply pipe is provided within the stack pipe for delivery of low pressure gas to an annular ring at the top of the stack which ring has elongated slots in the top and side for delivery of low pressure gas for burning. A relief or emergency dump gas supply pipe is also carried within the stack pipe for delivery of gas to the top of the stack pipe for burning. A steam ring is provided carried at the top of the stack with steam delivery pipes along the high pressure vanes and with angularly disposed tips delivering steam to enhance the swirling action of the burning gas and to suppress smoke. Ignitors and pilots are shown for initiating combustion of the gases.

Inventors

  • 👤 J Straitz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 12:09
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/06; F23G7/08

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 189 words
A flare gas burner for combustible waste gas comprising an outer stack pipe connected to a supply of waste gas at high pressure, a plurality of outwardly extending hollow vanes at the upper end of said pipe with spaces therebetween and having upwardly facing gas delivery openings connected to said stack pipe for discharge of waste gas for burning, said vanes having their slots disposed at an acute angle to a plane including a radius and the vertical longitudinal axis of said pipe, a low pressure gas supply pipe associated with said stack pipe, means connected to said low pressure pipe for delivery of said gas for burning at the upper end of said stack pipe and within the confine of the surrounding vanes, an emergency dump waste gas supply pipe associated with said stack pipe, means connected to said dump gas supply pipe for delivery of said gas for burning at the upper end of said stack pipe and within the confine of the low pressure gas delivered to the upper end of the stack, and means associated with said stack pipe supplying gaseous fluid for smoke suppression.
Claim 2
Dependent Claim 189 words
A flare gas burner for combustible waste gas comprising an outer stack pipe connected to a supply of waste gas at high pressure, a plurality of outwardly extending hollow vanes at the upper end of said pipe with spaces therebetween and having upwardly facing gas delivery openings connected to said stack pipe for discharge of waste gas for burning, said vanes having their slots disposed at an acute angle to a plane including a radius and the vertical longitudinal axis of said pipe, a low pressure gas supply pipe associated with said stack pipe, means connected to said low pressure pipe for delivery of said gas for burning at the upper end of said stack pipe and within the confine of the surrounding vanes, an emergency dump waste gas supply pipe associated with said stack pipe, means connected to said dump gas supply pipe for delivery of said gas for burning at the upper end of said stack pipe and within the confine of the low pressure gas delivered to the upper end of the stack, and means associated with said stack pipe supplying gaseous fluid for smoke suppression.
Claim 3
Dependent Claim 36 words
A flare gas burner as defined in claim 1 in which said means for burning connected to said low pressure supply pipe includes an annular manifold having elongated slots on its top and along its perimeter.
Claim 4
Dependent Claim 29 words
A flare gas burner as defined in claim 1 in which said means for burning connected to said emergency dump gas supply pipe includes a plate with openings therein.
Claim 5
Dependent Claim 33 words
A flare gas burner as defined in claim 1 in which said smoke suppression means includes a steam ring with angularly upwardly extending pipes, and said pipes are provided with angularly inclined tips.
Claim 6
Dependent Claim 28 words
A flare gas burner as defined in claim 1 in which said smoke suppression means includes members for supplying gas to the upper end of said stack pipe.
Claim 7
Dependent Claim 35 words
A flare gas burner as defined in claim 2 in which said low pressure gas supply pipe is carried within said stack pipe, and said manifold is secured to the top of said stack pipe.
Claim 8
Dependent Claim 22 words
A flare gas burner as defined in claim 2 in which said emergency dump gas supply pipe is secured to said manifold.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-07-08 1978-01-07 1978-07-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-07-08 1982-01-07 1982-07-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-07-08 1986-01-07 1986-07-09 $7700.00 Window Closed / Lapsed

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