Burners having fuel plenums
AssigneeDürr Systems AG
InventorsAxel Widenhorn, Roland Stoll, Dominik Lebküchner, Thilo Kissel
Life of this patent
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Abstract
Burners having a fuel plenum in a base are disclosed. One disclosed example apparatus includes a base of a burner, the base comprising a fuel plenum and coupled to fuel nozzles, where at least one of the fuel nozzles is in fluid communication with the fuel plenum. The disclosed example apparatus also includes a burner head of the burner comprising nozzle passages in fluid communication with an airflow path, where the burner head defines a pilot combustion space that opens towards a flame tube of the burner, and is in fluid communication with the airflow path, and where each nozzle passage is to receive a fuel nozzle to provide fuel to entrain with air from the airflow path.
Claims24
A burner to produce heated gas, comprising:
- a flame tube that may be coupled to a turbine and located in an air guiding device that encloses the flame tube and defines an airflow path;
- and
- a burner head coupled to a base comprising a body having a plurality of nozzle passages that fluidly communicate with the airflow path,
- wherein a fuel nozzle of a plurality of fuel nozzles projects into each nozzle passage to provide fuel mixed with air from the airflow path into the flame tube,
- wherein each fuel nozzle is fastened to the base, fluidly coupled to a fuel plenum formed in the base, and may be fluidly coupled to a fuel feed line, and
- wherein the burner-head body encloses a pilot combustion space that is open towards the flame tube and fluidly communicates with the air guiding device.
A method for producing heated gas, comprising:
- providing a burner with a flame tube and a burner-head body, which comprises a combustion space positioned in the flame tube, and a pilot combustion space enclosed by the burner-head body and open towards the combustion space;
- providing air and injecting fuel into the pilot combustion space;
- igniting the fuel which provided into the pilot combustion space;
- providing air and fuel into the combustion space as an air-fuel mixture;
- and
- combusting the air-fuel mixture in the combustion space, wherein the burner-head body is cooled with the air provided into the combustion space.
An apparatus comprising:
- a base of a burner, the base comprising a fuel plenum and coupled to fuel nozzles, wherein at least one of the fuel nozzles is in fluid communication with the fuel plenum;
- and
- a burner head of the burner comprising nozzle passages in fluid communication with an airflow path, the burner head defining a pilot combustion space that opens towards a flame tube of the burner, and in fluid communication with the airflow path, wherein each nozzle passage is to receive a fuel nozzle to provide fuel to entrain with air from the airflow path.
Dependencies are inferred from the claim text.