A burner and a method for operating a burner are provided. The burner includes a channel having a mixing zone and having a feed for an oxidation means, particularly an air feed, and at least one fuel feed for injecting fuel, wherein a separating means which divides the channel over a wide range of t
A burner and a method for operating a burner are provided. The burner includes a channel having a mixing zone and having a feed for an oxidation means, particularly an air feed, and at least one fuel feed for injecting fuel, wherein a separating means which divides the channel over a wide range of the channel into at least two separated channels, namely a first channel and a second channel, is provided in the channel. The method for operating a burner having a channel includes a mixing zone into which an oxidation mass flow and fuel are injected, wherein two substantially separate flow paths are formed by means of a separating means in the channel and the at least two separated first and second channels, formed by the separating means.
대표청구항▼
1. A burner, comprising: a channel including a mixing zone;an oxidation means supply;a fuel supply for injection of fuel; anda separating means provided in the channel which divides the channel over a wide area of the channel into at least two separate coaxial channels respectively extending in a di
1. A burner, comprising: a channel including a mixing zone;an oxidation means supply;a fuel supply for injection of fuel; anda separating means provided in the channel which divides the channel over a wide area of the channel into at least two separate coaxial channels respectively extending in a direction along a common flow line, said at least two coaxial channels comprising a first channel and a second channel,wherein an inlet opening is arranged for a first fuel, so that the first fuel is injected into the second channel, and further wherein an oxidation means is injected into the first channel during, andwherein a plurality of fuel nozzles for a further fuel are arranged downstream from the oxidation means supply and the inlet opening such that the separating means passes through the plurality of fuel nozzles and extends past the plurality of fuel nozzles towards the mixing zone so that the further fuel is injected into both the first channel and the second channel in order to be premixed in the mixing zone. 2. The burner as claimed in claim 1, further comprising a central axis, and wherein the separating means is concentric to the central axis. 3. The burner as claimed in claim 2, wherein the separating means is essentially arranged on the flow line. 4. The burner as claimed in claim 1, wherein the separating means comprises metal or a metal alloy. 5. The burner as claimed in claim 4, wherein the separating means is a metal sheet. 6. The burner as claimed in claim 1, further comprising a swirl generator including a plurality of swirler blades, and wherein the inlet opening is arranged upstream of the plurality of swirler blades in a main direction of flow. 7. The burner as claimed in claim 1, wherein the plurality of fuel nozzles are arranged in one or more rows lying behind one another downstream of the swirl generator. 8. The burner as claimed in claim 1, wherein the plurality of fuel nozzles are located in the swirl generator. 9. The burner as claimed in claim 1, wherein the second channel includes a smaller volume than that of the first channel. 10. The burner as claimed in claim 1, wherein a line is included upstream of and connected to the second channel. 11. The burner as claimed in claim 10, wherein the line includes a valve and/or a flap. 12. The burner as claimed in claim 1, wherein the first fuel is syngas. 13. A gas turbine, comprising: a burner, comprising: a channel including a mixing zone;an oxidation means supply;a fuel supply for injection of fuel; anda separating means provided in the channel which divides the channel over a wide area of the channel into at least two separate coaxial channels respectively extending in a direction along a common flow line, said at least two coaxial channels comprising a first channel and a second channel,wherein an inlet opening is arranged for a first fuel, so that the first fuel is injected into the second channel, and further wherein an oxidation means is injected into the first channel during, andwherein a plurality of fuel nozzles for a further fuel are arranged downstream from the oxidation means supply and the inlet opening such that the separating means passes through the plurality of fuel nozzles and extends past the plurality of fuel nozzles towards the mixing zone so that the further fuel is injected into both the first channel and the second channel in order to be premixed in the mixing zone. 14. The gas turbine as claimed in claim 13, further comprising a central axis, and wherein the separating means is concentric to the central axis,wherein the separating means is essentially arranged on the flow line, andwherein the separating means comprises metal or a metal alloy. 15. The gas turbine as claimed in claim 13, further comprising a swirl generator including a plurality of swirler blades, and wherein the inlet opening is arranged upstream of the plurality of swirler blades in a main direction of flow. 16. A method for operating a burner, comprising: applying a syngas to a second channel and an oxidation means to a first channel in the burner in synthetic gas operation; orapplying natural gas and an oxidation means to the first channel and the second channel in natural gas operation,wherein the burner, comprises: a channel including a mixing zone;an oxidation means supply;a fuel supply for injection of fuel; and a separating means provided in the channel which divides the channel over a wide area of the channel into at least two separate coaxial channels respectively extending in a direction along a common flow line, said at least two coaxial channels comprising a first channel and a second channel, andwherein an inlet opening is arranged for a fuel, so that the syngas is injected into the second channel during synthetic gas operation, orwherein a plurality of fuel nozzles for the natural gas are arranged downstream from the oxidation means supply and the inlet opening such that the separating means passes through the plurality of fuel nozzles and extends past the plurality of fuel nozzles towards the mixing zone so that the natural gas is injected into both the first channel and the second channel in order to be premixed in the mixing zone during the natural gas operation. 17. The method as claimed in claim 16, wherein the oxidation means is air. 18. The method as claimed in claim 16, wherein the mixing zone further comprises a cone side a hub side and a swirl generator, andwherein the fuel is injected on the the hub side via the swirl generator into the mixing zone. 19. The method as claimed in claim 18, wherein the fuel is injected via a swirler blade of the swirl generator into the mixing zone.
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