Fuel-air mixing and flame stabilization device for a low emission burner with internal flue gas recirculation
AssigneeHoneywell International Inc.
InventorsUmesh Chandra Bhayaraju, Curtis Lynn Taylor, Bradley Dean Patterson, Ross Halstead
Life of this patent
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Abstract
A flame stabilization apparatus with fuel injection upstream of a torpedo, includes a flame stabilization plate that incorporates spokes that stabilize a flame over a range of operations of a burner. The spokes surround a fuel plenum with respect to the burner. A first group of fuel ports can be located in a fuel tube upstream of the torpedo and a second group of fuel ports can be located in the flame stabilization plate. A discharge cone includes a discharge zone for the burner, wherein the flame with respect to the flue gas is stabilized at an end of the burner in the discharge zone.
Claims20
A flame stabilization apparatus with fuel injection upstream of a torpedo, comprising:
- a flame stabilization plate that includes a plurality of spokes that stabilizes a flame over a range of operations of a burner, wherein the plurality of spokes surrounds a fuel plenum;
- a first group of fuel ports located in a fuel tube upstream of the torpedo and a second group of fuel ports located in the flame stabilization plate;
- and
- a discharge cone comprising a discharge zone for the burner, wherein the flame with respect to the flue gas is stabilized at an end of the burner in the discharge zone, wherein the torpedo comprises a diverging conical section that reduces an area of a mixing zone of the burner and allows the flue gas and the air to interact.
A method of operating a flame stabilization apparatus with fuel injection upstream of a torpedo, comprising:
- injecting fuel into an air stream at an entrance to the torpedo from a fuel tube of a burner;
- and
- stabilizing a flame with a flame stabilization plate that includes a plurality of spokes surrounding a fuel plenum, wherein a first group of fuel ports is located in the fuel tube upstream of the torpedo and a second group of fuel ports is located in the flame stabilization plate, and the flame with respect to the flue gas is stabilized at an end of the burner in a discharge zone of a discharge cone, wherein the torpedo comprises a diverging conical section that reduces an area of a mixing zone of the burner and allows the flue gas and the air to interact.
A flame stabilization apparatus, comprising:
- a flame stabilization plate that includes a plurality of spokes that stabilizes a flame over a range of operations of a burner;
- and
- a discharge cone comprising a discharge zone for the burner, wherein a flame with respect to the flue gas is stabilized at an end of the burner in the discharge zone;
- and
- a torpedo that includes a diverging conical section that reduces an area of a mixing zone of the burner and allows the flue gas and the air to interact, the discharge cone including the diverging conical section.
Dependencies are inferred from the claim text.