EP3710749A1 - Brenner mit selektiver anpassung des bohrungsmusters für die gaseindüsung - Google Patents
Brenner mit selektiver anpassung des bohrungsmusters für die gaseindüsungInfo
- Publication number
- EP3710749A1 EP3710749A1 EP19716833.9A EP19716833A EP3710749A1 EP 3710749 A1 EP3710749 A1 EP 3710749A1 EP 19716833 A EP19716833 A EP 19716833A EP 3710749 A1 EP3710749 A1 EP 3710749A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- passages
- fuel
- air
- combustion chamber
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/04—Air inlet arrangements
- F23R3/10—Air inlet arrangements for primary air
- F23R3/12—Air inlet arrangements for primary air inducing a vortex
- F23R3/14—Air inlet arrangements for primary air inducing a vortex by using swirl vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/07001—Air swirling vanes incorporating fuel injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
- F23R2900/00014—Reducing thermo-acoustic vibrations by passive means, e.g. by Helmholtz resonators
Definitions
- the invention relates to a burner assembly with selective adaptation of the bore pattern for the gas injection to the spatial distribution of the mass flow of the incoming air, and to a method for upgrading a burner for a homogeneous premix of fuel and air.
- NOx emissions nitrogen oxide emissions
- the swirl-generating compo elements are hollow deflection vanes, wherein the cavity serves to distribute the fuel to holes from the cavity to the blade surface and so inject into the cross-flow of air.
- the cavity serves to distribute the fuel to holes from the cavity to the blade surface and so inject into the cross-flow of air.
- the object of the invention is to provide a burner assembly for a homogeneous premix of fuel and air, thereby allowing reduced NOx emissions.
- the invention provides that, in a burner arrangement, to hold a combustion chamber and a plurality of burners arranged on the combustion chamber on a burner, wherein the burners
- the burner assembly further comprising a radially outside or inside Circulating annular gap through the air in the Be around the combustion chamber on one side laterally flows to the Bren nern, which have the annular gap nearest passages of the burner more or larger fuel openings than the farthest from the annular gap passages of the burner.
- the invention therefore provides for arranging the number or the size of the fuel openings in the swirl-producing installations (blades or other fuel injection elements) such that more (or larger) fuel openings are arranged in passages which are exposed to more air than in other passages, so that more fuel can be fed to the "directly" from the annular gap flowed passages, as the rather remote passages.
- the invention has a great potential in particular to reduce NO x emissions for silo machines. This results in the ability to more easily comply with guaranteed values for nitrogen oxide emissions, or to achieve higher flame temperatures with the same NOx emissions, which is to achieve of performance and CO targets (carbon monoxide) is helpful. In addition, a more uniform load of the flame tube walls is expected, which makes cooling air savings and thus a further NOx reduction possible.
- Figure 2 shows the installation and the Anströmsituation in a gas turbine
- Figure 1 shows a section of a burner 1 of the prior art, comprising a main burner 10 and a pilot burner 11th
- the passages 3 in the main burner 10 for mixing fuel and air prior to combustion are by a radially inner cone 5, a arrange around the radially inner cone 5 th radially outer cone 6, as well as spin-generating internals 2, extending from the radially inner cone. 5 to the radially outer Ke gel 6 extend formed.
- These spin-generating internals 2 form an annular swirl lattice.
- fuel is supplied via the radially inner cone 5 (hub) to the hollow, spin-generating internals 2 and passed through the fuel openings 4 in the passages 3 and mixed with the air.
- the fuel openings 4 are arranged at different radial positions on the spin-generating internals 2.
- FIG. 2 shows the installation and the Anströmsituation a Bren ners 1 a burner assembly 7 in a gas turbine on the case of a silo combustion chamber 8.
- the burner assembly 7 comprises a plurality of on a Circular burner 1, as well as a radially outside the Krei ses circumferential annular gap 9 through the air in the operation around the combustion chamber 8 on one side laterally to the burners 1 flows.
- Passages 3 which are arranged radially on the outside of a combustion chamber axis 13 (in the vicinity of the passage 3, additionally labeled 14 in FIG. with a significantly larger air flow 17 acted as passages 3, which are arranged radially inwardly (in the vicinity of the additionally designated 15 passage 3) with respect to the combustion chamber axis 13 at.
- This asymmetry is superimposed on a wide re, namely an unequal distribution of the air mass flow in the radial direction within the burner 1 itself, since the Ab between the swirl-producing internals 2 from the inside out increases (see also Figure 3 with a view into the passages. 3
- the invention therefore proposes the selective adaptation of the fuel quantity fed to a passage 3 by closing or omitting corresponding fuel openings 4 in such a way that the closing or omission takes place in the areas of an affected passage 3, in which comparatively little air flows, ie radially inward, in the vicinity of the inner cone 5.
- the Be the fuel or openings to be closed with the reference numeral 16 provided.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018205874.1A DE102018205874A1 (de) | 2018-04-18 | 2018-04-18 | Brenner mit selektiver Anpassung des Bohrungsmusters für die Gaseindüsung |
| PCT/EP2019/058137 WO2019201577A1 (de) | 2018-04-18 | 2019-04-01 | Brenner mit selektiver anpassung des bohrungsmusters für die gaseindüsung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3710749A1 true EP3710749A1 (de) | 2020-09-23 |
| EP3710749B1 EP3710749B1 (de) | 2021-10-27 |
Family
ID=66102676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19716833.9A Active EP3710749B1 (de) | 2018-04-18 | 2019-04-01 | Brenner mit selektiver anpassung des bohrungsmusters für die gaseindüsung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3710749B1 (de) |
| DE (1) | DE102018205874A1 (de) |
| WO (1) | WO2019201577A1 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3364169B2 (ja) | 1999-06-09 | 2003-01-08 | 三菱重工業株式会社 | ガスタービン及びその燃焼器 |
| EP1394471A1 (de) * | 2002-09-02 | 2004-03-03 | Siemens Aktiengesellschaft | Brenner |
| ES2309128T3 (es) * | 2002-09-20 | 2008-12-16 | Siemens Aktiengesellschaft | Quemador premezclado con corriente masica de aire perfilada, turbina de gas y procedimiento para quemar combustible en aire. |
| EP1507119A1 (de) * | 2003-08-13 | 2005-02-16 | Siemens Aktiengesellschaft | Brenner und Verfahren zum Betrieb einer Gasturbine |
| DE102004049491A1 (de) * | 2004-10-11 | 2006-04-20 | Alstom Technology Ltd | Vormischbrenner |
| US7540152B2 (en) | 2006-02-27 | 2009-06-02 | Mitsubishi Heavy Industries, Ltd. | Combustor |
| KR101493256B1 (ko) | 2007-07-09 | 2015-02-16 | 지멘스 악티엔게젤샤프트 | 가스 터빈 버너 |
| EP2461101A1 (de) * | 2010-12-03 | 2012-06-06 | Siemens Aktiengesellschaft | Brennereinrichtung für eine Gasturbinenanlage und Verfahren zum Betreiben einer derartigen Brennereinrichtung |
| US9163837B2 (en) | 2013-02-27 | 2015-10-20 | Siemens Aktiengesellschaft | Flow conditioner in a combustor of a gas turbine engine |
| US20150316266A1 (en) * | 2014-04-30 | 2015-11-05 | Siemens Aktiengesellschaft | Burner with adjustable radial fuel profile |
-
2018
- 2018-04-18 DE DE102018205874.1A patent/DE102018205874A1/de not_active Withdrawn
-
2019
- 2019-04-01 WO PCT/EP2019/058137 patent/WO2019201577A1/de not_active Ceased
- 2019-04-01 EP EP19716833.9A patent/EP3710749B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018205874A1 (de) | 2019-10-24 |
| WO2019201577A1 (de) | 2019-10-24 |
| EP3710749B1 (de) | 2021-10-27 |
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