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US 7,726,133 B2Granted
Method for operating a burner of a gas turbine and a power plant
AssigneeSiemens Aktiengesellschaft
InventorsFrank Hannemann, Andreas Heilos, Michael Huth, Berthold Köstlin
Life of this patent
Estimating the term…
Abstract
A method is for operating a burner of a gas turbine. A fossil fuel is gasified and the gasified fossil fuel is fed as synthesis gas into the burner for combustion. The burner is connected to the gas turbine. The synthesis gas is divided into a first partial current and a second partial current and the partial currents are each fed into the burner for combustion. A power plant, particularly a gas and steam turbine system, includes a gasification device for a fossil fuel.
Claims27
A method for operating a burner of a gas turbine, comprising:
- gassifying a fossil fuel;
- and
- feeding gasified fossil fuel as synthesis gas to the burner assigned to the gas turbine in order to be burnt, wherein
- the synthesis gas is provided in a first part stream and a second part stream that branches from the first part stream,
- the first part stream is controlled by a first control fitting, the first control fitting being a butterfly valve, located downstream of a location where the second part stream branches from the first part stream and the second part stream is controlled by a second control fitting, the second control fitting being a globe valve, in the second part stream,
- the first part stream is carried by a first fuel passage in the burner and the second part stream is carried by a second fuel passage in the burner, the second fuel passage having a greater flow resistance than the first fuel passage and is arranged for also carrying a natural fuel to the burner, and
- the control streams are fed separately to the burner to be burnt.
4 more elements
A power plant installation, comprising:
- a gas turbine, assigned a combustion chamber, including at least one burner, and including a fuel system connected upstream of the combustion chamber;
- a gasification device for fossil fuel;
- a gas line, branching off from the gasification device and opening out into the combustion chamber;
- a further gas line, branching off from the gas line upstream of the combustion chamber, the gas line being connected to a first fuel passage of the burner and the further gas line being connected to a second fuel passage, separated in terms of flow from the first fuel passage of the burner;
- and
- a feed device which includes at least a natural gas feed system, the feed device connecting to the second fuel passage,
- wherein a control fitting is provided in the gas line down stream of the location where the further gas line branches off from the gas line and another control fitting is provided in the further gas line, the second fuel passage having a greater flow resistance than the first fuel passage, and wherein the control fitting provided in the gas line is a butterfly valve and the another control fitting provided in the further gas line is a globe valve.
4 more elements
A method for operating a burner of a gas turbine, comprising:
- gassifying a fossil fuel;
- separately feeding a divided first part and a divided second part of the gasified fuel to the burner for burning;
- and
- independently controlling the divided first part and the divided second part of the gasified fuel to the burner for burning using a first control fitting, the first control fitting being a butterfly valve, located downstream of a location where the divided second part branches from the divided first part and the divided second part stream is controlled by a second control fitting, the second control fitting being a globe valve, in the divided second part and the first part stream is carried by a first fuel passage in the burner and the second part stream is carried by a second fuel passage in the burner, the second fuel passage having a greater flow resistance than the first fuel passage and arranged for also carrying a natural fuel to the burner.
1 more element
An apparatus for operating a burner of a gas turbine, comprising:
- means for gassifying a fossil fuel;
- means for separately feeding a divided first part and a divided second part of the gasified fuel to the burner for burning;
- and
- means for independently controlling the divided first part and the divided second part of the gasified fossil fuel wherein the means for controlling the divided first part includes a butterfly valve provided in a gas line down stream of a location where the divided second part branches off from the divided first part and the first part stream is carried by a first fuel passage in the burner and a globe valve provided in the second part stream, the second part stream being carried by a second fuel passage in the burner arranged for also carrying a natural fuel to the burner, wherein the second fuel passage has a greater flow resistance than the first fuel passage.
1 more element
An apparatus, comprising:
- a gas turbine, assigned a combustion chamber including at least one burner, and including a fuel system connected upstream of the combustion chamber;
- means for gasifying fossil fuel;
- a gas line, connecting the gasification device and the combustion chamber;
- a further gas line, branching off from the gas line upstream of the combustion chamber, the gas line being connected to a first fuel passage of the burner and the further gas line being connected to a second fuel passage of the burner, separated in terms of flow from the first fuel passage;
- means for feeding a natural gas to the second fuel passage;
- and
- means for independently controlling the gasified fossil fuel in the gas line and the gasified fossil fuel in the further gas line, wherein the means for independently controlling the gasified fuel in the gas line includes a butterfly valve provided in the gas line down stream of the location where the further gas line branches off from the gas line and another control fitting, the another control fitting being a globe valve, provided in the further gas line and the first part stream is carried by a first fuel passage in the burner and the second part stream is carried by a second fuel passage in the burner, the second fuel passage having a greater flow resistance than the first fuel passage.
4 more elements
Dependencies are inferred from the claim text.