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US 7,029,272 B2Granted
Premix burner and method for operation thereof
AssigneeSiemens Aktiengesellschaft
InventorsKarsten Jordan, Holger Streb
Life of this patent
Estimating the term…
Abstract
The invention relates to a pre-mix burner with a main burner and a pilot burner, for stabilization of the main burner. The pilot burner comprises a fine-pored burner material, which permits a combustion with low nitrogen oxide content, which is not susceptible to combustion variations.
Claims19
A pre-mix burner for mixing combustion air with fuel to form a combustion gas mixture and subsequent combustion of the combustion gas mixture comprising:
- a fuel-lean main burner adapted to receive the greater concentration of the combustion air;
- and
- a fuel-rich pilot burner adapted to stabilize a lean combustion in the main burner, wherein the pilot burner is a pore burner with a combustion material that has a fine-pore structure,
- wherein the pre-mix burner is configured such that the combustion gas mixture flowing from the pilot burner and the combustion gas mixture flowing from the main burner merge to a common outlet.
1 more element
A gas turbine, comprising:
- a pre-mix burner, the pre-mix burner comprising:
- a fuel lean main burner adapted to receive the greater concentration of the combustion air;
- and
- a fuel rich pilot burner adapted to stabilize a lean combustion in the main burner,
- wherein the pilot burner is a pore burner with a combustion material that has a fine-pore structure and having a channel for assisting routing of a fuel,
- wherein the pre-mix burner is configured such that the combustion gas mixture flowing from the pilot burner and the combustion gas mixture flowing from the main burner merge to a common outlet.
3 more elements
A method for operating a pre-mix burner, comprising:
- mixing combustion air with fuel to receive a combustion gas mixture, whereby the mixing is performed by a fuel-lean main burner;
- and
- burning the combustion gas mixture the combustion being stabilized in the main burner by a fuel-rich pilot burner, wherein a combustion reaction takes place in the pilot burner with in a fine-pore combustion material,
- wherein the pre-mix burner is configured such that the combustion gas mixture flowing from the pilot burner and the combustion gas mixture flowing from the main burner merge to a common outlet.
1 more element
Dependencies are inferred from the claim text.