Burner system with staged fuel injection
AssigneeALSTOM Technology Ltd
InventorsMauricio Ernesto Garay, Stefano Bernero, Bruno Schuermans, Martin Zajadatz
Life of this patent
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Abstract
A burner system with staged fuel injection includes at least one burner with a mixing zone. A combustion chamber is disposed downstream of the mixing zone and a first fuel introduction device is provided upstream of the mixing zone. Furthermore, a second fuel introduction device for the direct injection of fuel into the combustion chamber, is disposed downstream of the mixing zone. In addition, at least one sensor for determining combustion parameters is connected to a control device. The control device is designed to control the second fuel introduction device as a function of the parameters determined by the sensors.
Claims16
A burner system with staged fuel injection, comprising:
- at least one burner with an inflow region for receiving a combustion air stream and a mixing zone disposed downstream of the inflow region;
- a combustion chamber disposed downstream of the mixing zone;
- a first fuel introduction device disposed upstream of the mixing zone;
- a second fuel introduction device disposed downstream of the mixing zone configured for direct injection of fuel into the combustion chamber;
- a sensor configured to determine at least one combustion parameter,
- a control device connected to the sensor and the second fuel introduction device and configured to control the second fuel introduction device as a function of the at least one determined parameter.
A burner system with staged fuel injection, comprising:
- at least one burner with an inflow region for receiving a combustion air stream and a mixing zone disposed downstream of the inflow region;
- a combustion chamber disposed downstream of the mixing zone;
- a first fuel introduction device disposed upstream of the mixing zone;
- a second fuel introduction device disposed downstream of the mixing zone configured for direct injection of fuel into the combustion chamber;
- a sensor configured to determine at least one combustion parameter, and
- a control device connected to the sensor and the second fuel introduction device and configured to control the second fuel introduction device as a function of the at least one determined parameter,
- wherein the second fuel introduction device has at least one fuel nozzle configured to inject the fuel into the combustion chamber, and
- wherein the at least one fuel nozzle includes a plurality of fuel nozzles disposed in a ring at an exit of the burner and each fuel nozzle is configured to inject the fuel into the combustion chamber.
A method for controlling a burner system with staged fuel injection, comprising:
- introducing a combustion air stream to an inflow region of a burner and flowing the combustion air to a mixing zone of the burner disposed downstream of the inflow region;
- flowing the combustion air stream to a combustion chamber disposed downstream of the mixing zone;
- introducing a first fuel to the combustion stream using a first fuel introduction device disposed upstream of the mixing zone;
- directly injecting a second fuel into the combustion chamber using a second fuel introduction device disposed downstream of the mixing, zone;
- determining at least one combustion parameter using a sensor;
- and
- controlling the second fuel introduction device as a function of the at least one combustion parameter.
Dependencies are inferred from the claim text.