Asymmetrical and offset flare tip for flare burners

Patent metadata

Field	Value
Publication number	US-11105508-B2
Application number	US-202016781392-A
Country	US
Kind code	B2
Filing date	Feb 4, 2020
Priority date	Nov 1, 2016
Publication date	Aug 31, 2021
Grant date	Aug 31, 2021

Abstract

A flare burner for burning combustible waste gases with a manifold, at least two arms, and a plurality of outlets disposed on the plurality of arms. The arms may be perpendicular to the manifold. The arms may also extend outwardly from the manifold. The arms may extend into annuli, to produce oppositely flowing exit gas. A curved dispersing surface may be disposed above the manifold. The arms may comprise a curvilinear shape or include both a linear and a curvilinear portion. The arms are unequal in length and may curve in an opposite direction from each other. The outlets are configured and spaced such that flame is short relative to size of the flare burner.

First claim

The invention claimed is:

1. An arrangement of flare burners comprising:
a first plurality of flare burners, each flare burner from the first plurality comprising:
a manifold comprising an inlet, two or more arms, and a plurality of outlets, the inlet configured to be secured to a conduit for combustible waste gases, and the plurality of outlets disposed on a plurality of arms such that oxygen may mix with combustible waste gases exiting the outlets,
wherein a first arm is curved in one direction has a plurality of walls positioned around said arm and is longer than a second arm that is curved in an opposite direction away from said first arm, and

a second plurality of flare burners, each flare burner from the second plurality comprising:
a manifold comprising an inlet, two or more arms, and a plurality of outlets, the inlet configured to be secured to a conduit for combustible waste gases, and the plurality of outlets disposed on a plurality of arms such that oxygen may mix with combustible waste gases exiting the outlets,
wherein a first arm is curved in one direction has a plurality of walls positioned around said arm and is longer than a second arm that is curved in an opposite direction away from said first arm, and

wherein the second arms of the burners of the first plurality extend towards the burners of the second plurality and wherein the second arms of burners of the second plurality extend towards the burners of the first plurality.

2. The arrangement of claim 1 , wherein each arm has a first portion without an apertures and a second portion with one or more apertures.

3. The arrangement of claim 2 , wherein at least the second portion has a curvilinear shape, and the first portion and the second portion having different lengths.

4. The arrangement of claim 1 , wherein each arm extends upwardly away from a body of the manifold.

5. The arrangement of claim 1 , wherein each arm extends downwardly away from a body of the manifold.

6. The arrangement of claim 1 , wherein each arm includes a plurality of outlets, and wherein each arm is bent in the shape of a circle and the outlets on each arm are disposed about a circumference of the circle.

7. The arrangement of claim 6 , wherein the outlets on each arm are spaced at least 11° from adjacent outlets.

8. The arrangement of claim 1 , wherein said first arms are configured so that about 66 to 85% of gas is fired by said first arms compared with said second arms.

9. The arrangement of claim 1 wherein said flare burners are configured over riser and header pipes wherein said second arms are positioned over said riser and header pipes and said first arms is located further from said riser and header pipes than said second arms.

10. An arrangement of flare burners comprising:
a plurality of flare burners, each flare burner from the plurality of flare burners comprising:
a manifold comprising an inlet, two or more arms, and a plurality of outlets, the inlet configured to be secured to a conduit for combustible waste gases, and the plurality of outlets disposed on a plurality of arms such that oxygen may mix with combustible waste gases exiting the outlets,
wherein a first arm is curved in one direction has a plurality of walls positioned around said arm and is longer than a second arm that is curved in an opposite direction away from said first arm, and

wherein the burners are arranged such that the first arm of one burner extends in one direction and the first arm of an adjacent burner extends in an opposite direction.

11. The arrangement of claim 10 , wherein each arm has a first portion without an apertures and a second portion with one or more apertures.

12. The arrangement of claim 11 , wherein at least the second portion has a curvilinear shape, and the first portion and the second portion having different lengths.

13. The arrangement of claim 10 , wherein each arm extends upwardly away from a body of the manifold.

14. The arrangement of claim 10 , wherein each arm extends downwardly away from a body of the manifold.

15. The arrangement of claim 10 , wherein each arm includes a plurality of outlets, and wherein each arm is bent in the shape of a circle and the outlets on each arm are disposed about a circumference of the circle.

16. The arrangement of claim 15 , wherein the outlets on each arm are spaced at least 11° from adjacent outlets.

17. The arrangement of claim 10 , wherein said first arms are configured so that about 66 to 85% of gas is fired by said first arms compared with said second arms.

18. The arrangement of claim 10 , wherein said flare burners are configured over riser and header pipes wherein said second arms are positioned over said riser and header pipes and said first arms is located further from said riser and header pipes than said second arms.

Assignees

• Honeywell Int Inc

Inventors

• Martin Matthew
• Kraus Kurt E
• Ferguson Christopher
• Bietto Stefano

Classifications

• F23G7/08 Primary

  using flares, e.g. in stacks · CPC title

• F23D2900/14004

  with radially extending gas distribution spokes · CPC title

• F23D2900/14042

  Star shaped assembly of burner bars or arms · CPC title

• F23D14/58

  characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration · CPC title

• F23D2900/11001

  Impinging-jet injectors or jet impinging on a surface · CPC title