EP1308673A2 - Vorrichtung zur Kraftstoffeinspritzung in den Strömungs-Nachlauf von Drallschaufeln - Google Patents
Vorrichtung zur Kraftstoffeinspritzung in den Strömungs-Nachlauf von Drallschaufeln Download PDFInfo
- Publication number
- EP1308673A2 EP1308673A2 EP02021587A EP02021587A EP1308673A2 EP 1308673 A2 EP1308673 A2 EP 1308673A2 EP 02021587 A EP02021587 A EP 02021587A EP 02021587 A EP02021587 A EP 02021587A EP 1308673 A2 EP1308673 A2 EP 1308673A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- swirl
- air
- swirl vane
- fuel injection
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 57
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 241000446313 Lamella Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 241001156002 Anthonomus pomorum Species 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
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
Definitions
- the invention relates to a device for fuel injection into the combustion chamber of a gas turbine, with at least one swirl generator arranged in an airway with at least one swirl blade, as well as with at least a fuel injector.
- An alternative approach is to to provide radial, diagonal or axial injection bores, through which the fuel from a central or Ring body or from a swirl vane into the air flow is introduced.
- the fuel jets be mixed well with the air.
- lean stoichiometry in the flame pollutant emissions, for example nitrogen oxides, can be reduced.
- the cross-section of the burner flow was in the primary zone increased and increased in the past Mixed air from mixing holes in the flame tube more and more waived.
- the invention is based on the object of a device for fuel injection of the type mentioned to create which with simple construction and reliable Applicability a good mixing of the fuel ensures with the supplied air and the out avoids disadvantages known in the art.
- the object is characterized by the features of Main claim solved, the sub-claims show more advantageous embodiments of the invention.
- the at least a fuel injector in the wake area of the swirl vane is arranged, the nozzle is not on the Shovel itself lies.
- the device according to the invention is characterized by a A number of significant advantages.
- the fuel is radial, diagonal or axial bores or nozzles in the wake of the axial, diagonal or radial swirl blades are injected.
- This will contrast the penetration depth of the rays the constructions known from the prior art significantly increased because the fuel jets are not more so quickly due to the high relative speed between Air and fuel are torn apart. It is therefore possible a much larger air mass flow in one Mix burner effectively with fuel. Through this increased flow area of the burner at the same time Tunability of the fuel distribution in the burner air pollutant emissions can be drastically reduced. Due to the larger usable flow area of an individual If necessary, Brenner can also change the number of Burners in a gas turbine are reduced. hereby there is a saving both in terms of weight as well as the cost.
- the fuel injection nozzle in the area the rear edge of the swirl blade is arranged.
- This streamlined arrangement enables the Inject fuel into the air wake that runs through the boundary layer is formed on the swirl vane. Due to the significantly reduced flow speed in the wake becomes the penetration depth of the fuel jets significantly increased.
- the rear edge of the Swirl vane is contoured. Through this Contouring can be used in the fuel distribution Air flow can be controlled.
- the contouring given distance is the Fuel jet protected by the swirl vane. On a suitable point is at the trailing edge of the blade Kink trained. This causes the Fuel jet suddenly a large aerodynamic Load is exposed so that the wall distance from the kink a lot of fuel is introduced into the air flow.
- the angle and the wall distance of the kink can adjust the fuel distribution in the air accordingly be set constructively.
- the invention provides that the swirl blades with regard to their cross section or their thickness are contoured.
- the fuel jet is protected for a certain distance and can therefore go to a predetermined depth Penetrate air flow.
- Tapered at an appropriate point the rear edge of the swirl vane and thus sets the fuel jet of a sudden aerodynamic Load, so a lot of fuel at this point is introduced into the air flow.
- the blade rear edge normal (perpendicular) to the wall can design the fuel distribution in the air accordingly can be set.
- Fig. 1 shows a highly simplified representation Swirl blade 2 of a swirl generator, the flow boundary layers and the speed ranges of air speeds are shown. Get the percentages percentages of the maximum possible Air velocities, i.e. the inflow velocity.
- the reference number 3 is a schematic Fuel injector shown in the Trailing area of the flow of the swirl blade 2 is located.
- FIGS. 4 and 5 Another example of a contoured swirl vane shows the representation of FIGS. 4 and 5. Also result here curves 7 and 8 the course of the fuel jets.
- the swirl blade is essential in its foot area 4 thicker than in their tip area 5th
- FIG. 6 is an axial swirl generator with a improved fuel injection shown. Through the square The two limit curves of the distribution of parentheses are shown in parentheses Fuel jets (9 is the outer limit, 10 is same inner limit curve) is shown in simplified form. From this it turns out that the fuel is practically the whole Effective area of the swirl generator 1 evenly in the Air flow is distributed.
- Fig. 7 shows a diagonal swirl generator in the inventive Design.
- the fuel limit curves show 9 and 10 (also illustrated by the square brackets) the area in which the fuel is distributed.
- FIG. 8 is a radial swirl generator in accordance with the invention Shown design. Each of the swirl blades 2, a fuel injector 3 is assigned to each. 9 shows the fuel limit curves 11 (in connection with the square bracket) the distribution area of the fuel.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Abstract
Description
- Fig. 1
- eine schematische Draufsicht auf die erfindungsgemäße Kraftstoffeinspritzung im Nachlaufbereich einer Drallschaufel,
- Fig. 2
- eine vereinfachte, schematische Darstellung einer Seitenansicht einer Drallschaufel mit konturierter Hinterkante,
- Fig. 3
- eine Schnittansicht längs der Linie III-III von Fig. 2,
- Fig. 4
- eine Seitenansicht, ähnlich Fig. 4, eines weiteren Ausführungsbeispiels einer Drallschaufel mit Dickenkonturierung,
- Fig. 5
- eine Schnittansicht längs der Linie V-V von Fig. 4,
- Fig. 6
- eine Darstellung eines erfindungsgemäß ausgestalteten axialen Drallerzeugers,
- Fig. 7
- eine vereinfachte Darstellung eines Ausführungsbeispiels eines erfindungsgemäßen diagonalen Drallerzeugers,
- Fig. 8
- eine schematische Darstellung, in der Vorderansicht, eines Ausführungsbeispiels eines erfindungsgemäßen radialen Drallerzeugers, und
- Fig. 9
- eine Seitenansicht der in Fig. 8 gezeigten Anordnung, teils im Schnitt.
Claims (8)
- Vorrichtung zur Kraftstoffeinspritzung in die Brennkammer einer Gasturbine, mit zumindest einem in einem Luftweg angeordneten Drallerzeuger (1) mit zumindest einer Drallschaufel (2), sowie mit zumindest einer Kraftstoffeinspritzdüse (3),
dadurch gekennzeichnet, dass
die Kraftstoffeinspritzdüse (3) im Nachlaufbereich der Drallschaufel (2) angeordnet ist. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass
die Kraftstoffeinspritzdüse (3) im Bereich der Hinterkante der Drallschaufel (2) angeordnet ist. - Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass
die Kraftstoffeinspritzdüse (3) im Bereich der durch die Grenzschicht an der Drallschaufel (2) geführten Luftströmung angeordnet ist. - Vorrichtung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass
die Hinterkante der Drallschaufel (2) konturiert ausgebildet ist. - Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, dass
die Hinterkante der Drallschaufel (2) in Strömungsrichtung abgeschrägt ausgebildet ist. - Vorrichtung nach einem der Ansprüche 4 oder 5,
dadurch gekennzeichnet, dass
die Drallschaufel (2) im Querschnitt konturiert ausgebildet ist. - Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet, dass
die Hinterkante der Drallschaufel (2) an ihrem Fußbereich (4) eine größere Breite aufweist, als an ihrem Spitzenbereich (5). - Vorrichtung nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet dass
die Düse (3) nicht auf der Drallschaufel (2) ausgebildet ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10154282A DE10154282A1 (de) | 2001-11-05 | 2001-11-05 | Vorrichtung zur Kraftstoffeinspritzung in den Strömungs-Nachlauf von Drallschaufeln |
| DE10154282 | 2001-11-05 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1308673A2 true EP1308673A2 (de) | 2003-05-07 |
| EP1308673A3 EP1308673A3 (de) | 2004-06-23 |
| EP1308673B1 EP1308673B1 (de) | 2008-07-16 |
Family
ID=7704670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02021587A Expired - Lifetime EP1308673B1 (de) | 2001-11-05 | 2002-09-27 | Vorrichtung zur Kraftstoffeinspritzung in den Strömungs-Nachlauf von Drallschaufeln |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6901756B2 (de) |
| EP (1) | EP1308673B1 (de) |
| DE (2) | DE10154282A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1584872A3 (de) * | 2004-04-07 | 2008-11-12 | United Technologies Corporation | Drallerzeuger |
| US8065880B2 (en) | 2006-04-14 | 2011-11-29 | Mitsubishi Heavy Industries, Ltd. | Premixed combustion burner for gas turbine |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1843098A1 (de) * | 2006-04-07 | 2007-10-10 | Siemens Aktiengesellschaft | Gasturbinenverbrennungskammer |
| WO2008097320A2 (en) * | 2006-06-01 | 2008-08-14 | Virginia Tech Intellectual Properties, Inc. | Premixing injector for gas turbine engines |
| US8347630B2 (en) * | 2008-09-03 | 2013-01-08 | United Technologies Corp | Air-blast fuel-injector with shield-cone upstream of fuel orifices |
| US9429074B2 (en) * | 2009-07-10 | 2016-08-30 | Rolls-Royce Plc | Aerodynamic swept vanes for fuel injectors |
| WO2015136609A1 (ja) * | 2014-03-11 | 2015-09-17 | 三菱日立パワーシステムズ株式会社 | ボイラ用燃焼バーナ |
| EP2942563A1 (de) * | 2014-05-09 | 2015-11-11 | Siemens Aktiengesellschaft | Drallerzeuger für einen Brenner eines Gasturbinenmotors, Brenner eines Gasturbinenmotors und Gasturbinenmotor |
| JP6430756B2 (ja) * | 2014-09-19 | 2018-11-28 | 三菱日立パワーシステムズ株式会社 | 燃焼バーナ及び燃焼器、並びにガスタービン |
| JP5913503B2 (ja) * | 2014-09-19 | 2016-04-27 | 三菱重工業株式会社 | 燃焼バーナ及び燃焼器、並びにガスタービン |
| EP3224544A1 (de) * | 2014-11-26 | 2017-10-04 | Siemens Aktiengesellschaft | Brennstofflanze mit mittel zur interaktion mit einem luftstrom und zur verbesserung des bruches eines ausgestossenen strahles aus flüssigem brennstoff |
| US9939155B2 (en) * | 2015-01-26 | 2018-04-10 | Delavan Inc. | Flexible swirlers |
| US10393020B2 (en) * | 2015-08-26 | 2019-08-27 | Rohr, Inc. | Injector nozzle configuration for swirl anti-icing system |
| EP3775694B1 (de) * | 2018-04-06 | 2022-01-12 | General Electric Company | Vormischer für gasturbinenbrennkammer mit niedrigen emissionen |
| GB201907834D0 (en) * | 2019-06-03 | 2019-07-17 | Rolls Royce Plc | A fuel sparay nozzle arrangement |
| KR102245798B1 (ko) * | 2019-09-17 | 2021-04-28 | 두산중공업 주식회사 | 연료 노즐 어셈블리 및 이를 포함하는 가스 터빈의 연소기 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19532264A1 (de) | 1995-09-01 | 1997-03-06 | Mtu Muenchen Gmbh | Einrichtung zur Aufbereitung eines Gemisches aus Brennstoff und Luft an Brennkammern für Gasturbinentriebwerke |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US23590A (en) * | 1859-04-12 | Sele-priming gun-lock | ||
| GB1275255A (en) * | 1968-07-18 | 1972-05-24 | Lucas Industries Ltd | Liquid atomising devices |
| DE3819898A1 (de) * | 1988-06-11 | 1989-12-14 | Daimler Benz Ag | Brennkammer fuer eine thermische stroemungsmaschine |
| US5165241A (en) * | 1991-02-22 | 1992-11-24 | General Electric Company | Air fuel mixer for gas turbine combustor |
| US5267851A (en) * | 1992-03-16 | 1993-12-07 | General Electric Company | Swirl gutters for isolating flow fields for combustion enhancement at non-baseload operating conditions |
| US5251447A (en) * | 1992-10-01 | 1993-10-12 | General Electric Company | Air fuel mixer for gas turbine combustor |
| US5511375A (en) * | 1994-09-12 | 1996-04-30 | General Electric Company | Dual fuel mixer for gas turbine combustor |
| US5899075A (en) * | 1997-03-17 | 1999-05-04 | General Electric Company | Turbine engine combustor with fuel-air mixer |
| GB2324147B (en) * | 1997-04-10 | 2001-09-05 | Europ Gas Turbines Ltd | Fuel-injection arrangement for a gas turbine combuster |
| US6502399B2 (en) | 1997-09-10 | 2003-01-07 | Mitsubishi Heavy Industries, Ltd. | Three-dimensional swirler in a gas turbine combustor |
| US6141967A (en) * | 1998-01-09 | 2000-11-07 | General Electric Company | Air fuel mixer for gas turbine combustor |
| US6367262B1 (en) * | 2000-09-29 | 2002-04-09 | General Electric Company | Multiple annular swirler |
-
2001
- 2001-11-05 DE DE10154282A patent/DE10154282A1/de not_active Withdrawn
-
2002
- 2002-09-27 EP EP02021587A patent/EP1308673B1/de not_active Expired - Lifetime
- 2002-09-27 DE DE50212499T patent/DE50212499D1/de not_active Expired - Lifetime
- 2002-11-05 US US10/287,718 patent/US6901756B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19532264A1 (de) | 1995-09-01 | 1997-03-06 | Mtu Muenchen Gmbh | Einrichtung zur Aufbereitung eines Gemisches aus Brennstoff und Luft an Brennkammern für Gasturbinentriebwerke |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1584872A3 (de) * | 2004-04-07 | 2008-11-12 | United Technologies Corporation | Drallerzeuger |
| US8065880B2 (en) | 2006-04-14 | 2011-11-29 | Mitsubishi Heavy Industries, Ltd. | Premixed combustion burner for gas turbine |
| DE102007004394B4 (de) * | 2006-04-14 | 2012-04-26 | Mitsubishi Heavy Industries, Ltd. | Brenner zum Verbrennen eines Vorgemischs für eine Gasturbine |
Also Published As
| Publication number | Publication date |
|---|---|
| US6901756B2 (en) | 2005-06-07 |
| DE50212499D1 (de) | 2008-08-28 |
| US20030084667A1 (en) | 2003-05-08 |
| DE10154282A1 (de) | 2003-05-15 |
| EP1308673A3 (de) | 2004-06-23 |
| EP1308673B1 (de) | 2008-07-16 |
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