EP2409079A2 - Brenner und verfahren zum betrieb eines brenners, insbesondere für eine gasturbine - Google Patents
Brenner und verfahren zum betrieb eines brenners, insbesondere für eine gasturbineInfo
- Publication number
- EP2409079A2 EP2409079A2 EP10712376A EP10712376A EP2409079A2 EP 2409079 A2 EP2409079 A2 EP 2409079A2 EP 10712376 A EP10712376 A EP 10712376A EP 10712376 A EP10712376 A EP 10712376A EP 2409079 A2 EP2409079 A2 EP 2409079A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- jet pipe
- fuel
- opening
- burner
- central axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000446 fuel Substances 0.000 claims abstract description 37
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 19
- 239000007800 oxidant agent Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 abstract description 5
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000006199 nebulizer Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
- F23D11/106—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting at the burner outlet
Definitions
- the present invention relates to methods of operating a burner, a burner and a gas turbine.
- a second object of the present invention is to provide an advantageous burner.
- a third object is to provide an advantageous gas turbine available.
- the first object is achieved by a method according to claim 1.
- the second object is achieved by a burner according to claim 9.
- the third object is achieved by a gas turbine according to claim 14.
- the dependent claims contain further, advantageous embodiments of the invention.
- the inventive method for operating a burner relates to a burner which comprises at least one jet pipe.
- the jet pipe flows an oxidizing agent, typically air.
- the jet pipe comprises at its circumference at least one supply channel with an opening directed towards the interior of the jet pipe, which in relation to the stream tion direction of the oxidizing agent comprises an upstream and a downstream wall.
- a liquid fuel is introduced along the upstream wall through the opening in the jet pipe.
- an auxiliary medium is introduced through the supply channel in the jet pipe.
- auxiliary medium As fuel, for example, oil can be used.
- air or an inert substance can be used as the auxiliary medium.
- nitrogen or steam, for example water vapor can be used as the inert substance.
- compressor air can be compressed as an auxiliary medium, that is to say by means of a compressor or in another way Air, to be used.
- the auxiliary medium is advantageously cooled.
- inert auxiliary media for example steam, nitrogen or cooled air
- safe operation can be enabled even at very high compressor outlet pressure or at very high temperatures.
- gaseous inert materials or cooled compressor air as an auxiliary medium causes a delay of the auto-ignition and thus allows longer mixing paths.
- auxiliary compressor may be required in this case.
- the jet pipe may comprise a central axis.
- the fuel and the auxiliary medium can be introduced in this case at an angle between 0 ° and 90 ° to the central axis in the jet pipe.
- the fuel and the auxiliary medium can be introduced at an angle between 40 ° and 50 ° to the central axis in the jet pipe.
- the burner according to the invention comprises at least one jet pipe.
- the jet pipe comprises an outlet and has at its circumference at least one supply channel with an opening directed towards the jet tube interior, which is in fluid communication with a supply device for supplying a Zerstäuber oscilsmediums in the jet tube interior.
- the feed channel includes an upstream and a downstream wall with respect to a flow direction directed toward the exit of the jet pipe.
- the upstream wall is connected to a fuel supply that allows for the generation of a fuel film on the upstream wall.
- the supply channel can be configured as an annular channel and the opening as an annular gap running along the circumference of the jet tube.
- the jet pipe is typically designed split.
- the annular gap may be for introducing liquid fuel which is driven by the nebulizing aid medium as a film to the nebulizing edge between a main flow in the jet pipe and the flow of nebulizer auxiliary medium.
- the sputtering edge is formed by the upstream edge of the annular gap.
- the jet pipe and the opening may each comprise a central axis.
- the central axis of the jet pipe and the center axis of the opening may include an angle between 0 ° and 90 °.
- the center axis of the jet pipe and the center axis of the opening may include an angle between 40 ° and 50 °.
- effusion openings are provided downstream of the at least one supply channel in the jet tube wall, which can in particular be designed as effusion bores.
- the gas turbine according to the invention comprises a previously described burner according to the invention.
- the gas turbine according to the invention have the same advantages as the burner according to the invention.
- the gas turbine according to the invention can be used to carry out the process according to the invention.
- the present invention provides a feedback through the flowing atomizing medium due to the prevention of contact of the fuel with the downstream wall. Stagnation and unwanted ignition on this wall largely prevented.
- FIG. 1 shows schematically a section through a burner according to a first embodiment.
- FIG 2 shows schematically a section through a burner according to a second embodiment.
- 3 shows schematically a gas turbine.
- FIG 1 shows schematically a section through the jet pipe 1 of a burner according to the invention.
- the jet pipe 1 comprises a central axis 2, an inlet 3 and an outlet 4.
- the jet pipe 1 along its circumference two opposing feed channels 5a and 5b with directed to the interior of the jet pipe 1 openings 16a, 16b.
- the center axes of the feed channels 5a and 5b are through the
- the channels 5a and 5b each have an upstream wall 7 and downstream wall 8 and an upstream and a downstream wall area, respectively.
- air is passed through the jet pipe 1 as an oxidizing agent.
- the direction of flow of the air is indicated by the reference numeral 10.
- a film of a liquid fuel in the present embodiment, oil is produced on the upstream wall 7.
- an auxiliary The oil is passed through the supply channels 5a, 5b in such a way that the oil is driven along the upstream wall 7 as a film to the jet pipe 1 and atomized at the inlet to the jet pipe 1 at an atomizer edge 13 located there.
- auxiliary medium By the auxiliary medium forming a buffer between the fuel film and the downstream wall 8, contact of the oil with the downstream wall 8 is avoided. This prevents residue formation and ignition on the downstream wall.
- the flow direction of the oil is indicated by the reference numeral 11
- the flow direction of the auxiliary medium is indicated by the reference numeral 12.
- the auxiliary medium may be, for example, air, in particular cooled compressor air, steam, in particular water vapor, nitrogen or another inert auxiliary medium.
- the oil and the auxiliary medium used at an angle ⁇ between 0 ° and 90 °, advantageously between 40 ° and 50 °, are introduced to the central axis 2 in the jet pipe 1.
- the angle ⁇ is indicated by the reference numeral 9.
- effusion bores are present in the jet tube wall between the channels 5a and 5b and the outlet 4, which likewise counteract the formation of deposits on the jet tube wall and also the self-ignition of the fuel at the jet tube wall.
- FIG 2 shows schematically a section through the jet pipe of a burner according to the invention.
- the jet pipe shown in FIG 2 comprises two parts Ia and Ib. Between the two parts Ia and Ib of the jet pipe is an annular channel 5c with a to the interior of the jet pipe Ia, Ib towards open
- the opening 16c in this case forms an annular gap in the peripheral wall of the jet pipe.
- the annular channel 5 c is connected to a fuel supply 14 and a supply of a Zerstäuberagismediums 15.
- Fuel supply 14 may in particular be an oil supply.
- the atomizer auxiliary medium may be, for example, air, in particular cooled compressor air, steam, in particular steam, nitrogen or another inert auxiliary medium.
- the fuel supply 14 is arranged so that the supplied fuel flows on the upstream wall 7 of the annular channel 5c as a film in the direction of the jet pipe.
- the direction of flow of the fuel is indicated by the reference numeral 11.
- the supply 15 for the Zerstäuberinsmedium is designed so that the atomizer auxiliary medium drives the fuel used as a film in the direction of the jet pipe and atomized at the Zerstäuberkante 13 at the entrance into the jet pipe.
- the atomizer auxiliary medium prevents contact between the fuel 11 and the downstream wall 8. As a result, residue formation and ignition at the downstream wall 8 are largely avoided.
- the flow direction of the atomizer auxiliary medium is indicated by the reference numeral 12.
- the center of the annular channel 5c can form an imaginary conical jacket 6, which forms an angle ⁇ (reference numeral 9) between 0 ° and 90 °, in particular between 40 ° and 50 °, with the central axis 2 of the jet pipe 1 a, 1 b.
- ⁇ reference numeral 9
- the annular gap 5c and the output 4 effusion holes may be present in the jet tube wall, which also counteract the formation of deposits on the jet tube wall and a self-ignition of the fuel at the jet tube wall.
- a gas turbine has inside a rotor rotatably mounted about a rotation axis with a shaft 107, which is also referred to as a turbine runner.
- a turbine runner Along the rotor follow one another an intake housing 109, a compressor 101, a combustion system 151 with a number of steel burners 1, a turbine 105 and the exhaust housing 190.
- the combustion system 151 with the burners according to the invention may basically comprise an annular combustion chamber or a plurality of tube combustion chambers.
- the combustion system 151 communicates with a, for example, annular hot gas channel.
- a turbine stage connected in series form the turbine 105.
- Turbine stage is formed of blade rings. As seen in the direction of flow of a working medium, a vane collar 117 is followed by a ring formed by blades 115 in the hot gas duct. The guide vanes 117 are fastened to an inner housing of a stator, whereas the moving blades 115 are attached to the rotor. Coupled to the rotor is a generator or a work machine.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10712376A EP2409079A2 (de) | 2009-03-17 | 2010-03-12 | Brenner und verfahren zum betrieb eines brenners, insbesondere für eine gasturbine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP09155336A EP2236919A1 (de) | 2009-03-17 | 2009-03-17 | Brenner und Verfahren zum Betrieb eines Brenners, insbesondere für eine Gasturbine |
| EP10712376A EP2409079A2 (de) | 2009-03-17 | 2010-03-12 | Brenner und verfahren zum betrieb eines brenners, insbesondere für eine gasturbine |
| PCT/EP2010/053213 WO2010105989A2 (de) | 2009-03-17 | 2010-03-12 | Brenner und verfahren zum betrieb eines brenners, insbesondere für eine gasturbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2409079A2 true EP2409079A2 (de) | 2012-01-25 |
Family
ID=41020855
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09155336A Withdrawn EP2236919A1 (de) | 2009-03-17 | 2009-03-17 | Brenner und Verfahren zum Betrieb eines Brenners, insbesondere für eine Gasturbine |
| EP10712376A Withdrawn EP2409079A2 (de) | 2009-03-17 | 2010-03-12 | Brenner und verfahren zum betrieb eines brenners, insbesondere für eine gasturbine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09155336A Withdrawn EP2236919A1 (de) | 2009-03-17 | 2009-03-17 | Brenner und Verfahren zum Betrieb eines Brenners, insbesondere für eine Gasturbine |
Country Status (2)
| Country | Link |
|---|---|
| EP (2) | EP2236919A1 (de) |
| WO (1) | WO2010105989A2 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7015687A (de) * | 1970-10-26 | 1971-02-25 | ||
| FR2662377B1 (fr) * | 1990-05-23 | 1994-06-03 | Total France | Procede et dispositif de pulverisation de liquide, ainsi que leurs applications. |
| FR2717106B1 (fr) * | 1994-03-11 | 1996-05-31 | Total Raffinage Distribution | Procédé et dispositif de pulvérisation d'un liquide, notamment d'un liquide à haute viscosité, à l'aide d'au moins un gaz auxiliaire. |
| EP1918638A1 (de) * | 2006-10-25 | 2008-05-07 | Siemens AG | Brenner, insbesondere für eine Gasturbine |
-
2009
- 2009-03-17 EP EP09155336A patent/EP2236919A1/de not_active Withdrawn
-
2010
- 2010-03-12 EP EP10712376A patent/EP2409079A2/de not_active Withdrawn
- 2010-03-12 WO PCT/EP2010/053213 patent/WO2010105989A2/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010105989A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2236919A1 (de) | 2010-10-06 |
| WO2010105989A2 (de) | 2010-09-23 |
| WO2010105989A3 (de) | 2012-03-29 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| R17D | Deferred search report published (corrected) |
Effective date: 20120329 |
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| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
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| GRAP | Despatch of communication of intention to grant a patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 20160823 |