EP1084368B2 - Brennstoffdüse - Google Patents
Brennstoffdüse Download PDFInfo
- Publication number
- EP1084368B2 EP1084368B2 EP99936291A EP99936291A EP1084368B2 EP 1084368 B2 EP1084368 B2 EP 1084368B2 EP 99936291 A EP99936291 A EP 99936291A EP 99936291 A EP99936291 A EP 99936291A EP 1084368 B2 EP1084368 B2 EP 1084368B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- fuel
- orifice
- edge
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
-
- 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
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/38—Nozzles; Cleaning devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2206/00—Burners for specific applications
- F23D2206/10—Turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2210/00—Noise abatement
-
- 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 a burner for a gas turbine, in particular for a stationary Gas turbine, with a fuel nozzle for liquid fuel with a mouth area, in which is a mouth channel along a nozzle axis extends.
- a burner is for example known from US 5,235,813.
- DE-OS 20 33 118 shows a gas burner for a gas-fired melting furnace. To a high To create flame temperature, points the gas burner in the region of the mouth converging nozzle in Shape of a gap. This will cause a high heat concentration guaranteed.
- DE 27 39 102 A1 shows a burner two nozzles for gaseous substances, with the nozzle openings have an oval cross-section.
- the mouth rim a nozzle ends by a chamfer not converging and has a twofold symmetry on.
- the object of the invention is the specification of a Brenners of the above kind through which a combustion vibration is at least reduced becomes.
- this object is achieved through a fuel nozzle for liquid fuel with an orifice area in which extends along a nozzle axis a mouth channel extending, which mouth channel not converging at a mouth edge ends, wherein the mouth edge is not rotationally symmetrical around the nozzle axis is.
- Liquid fuel is in the fuel nozzle passed through the mouth area in the mouth channel.
- the mouth channel is in the mouth area it does not converge, that is, it narrows not, so that no pressure loss occurs.
- the liquid Fuel exits the mouth channel at the mouth rim in the outside space. This is expanding the beam, i. you get a divergent, fanned out Fuel jet. Due to the fact that the mouth edge is not rotationally symmetric about the nozzle axis, Also, the divergent fuel jet is not rotationally symmetric. This gives a distorted cone of fuel, which at least in two spatial directions a different extent perpendicular to Beam direction has. Accordingly, this is distorted spatial area in which the combustion takes place.
- the mouth edge is asymmetrical around the nozzle axis. This means that the Mouth edge a full turn around the Nozzle axis must experience to be with its original Position to take cover again.
- the mouth edge a twofold symmetry. Further preferred while the mouth edge an ellipse or a rectangle, especially with rounded corners.
- the strange Symmetry means that the mouth edge a half rotation, i. 180 °, to experience with his original position to cover.
- the mouth edge corresponds to a Contour formed by a rectangle and a circle is where the circle with its center on the Focus of the rectangle is on the narrow side the rectangle protrudes, and where the contour encloses the outer edge of the rectangle and the circle.
- Preferred dimensions correspond to the mouth edge a contour perpendicular to each other by two standing, with a common focus Rectangles is formed, with the contour of the outer The edge of both rectangles encloses.
- the mouth channel a channel wall, with each point of the channel wall an axis distance to the nozzle axis and an axial Position along the nozzle axis, and wherein the axis distance for at least two points on the Duct wall, which have the same axial position, is different. More preferably changes the axis distance is the same for points on the channel wall axial position along a circumferential direction the nozzle axis steady.
- the mouth channel is so not rotationally symmetric about the nozzle axis.
- the liquid fuel is already a bit far in the Mouth area in a non-rotationally symmetric Electricity led.
- the fuel flow is thus a not rotationally symmetrical shape imprinted, which at the exit of fuel from the fuel nozzle particularly efficient means that one does not rotationally symmetric, distorted fuel cone formed.
- the mouth channel widens towards the mouth edge.
- the mouth edge has a Notch on.
- a notch becomes more fluid Fuel exiting the fuel nozzle more distracted in the direction of the notch, than in the remaining directions of the mouth edge.
- Preferred is a fuel nozzle for petroleum.
- FIG. 1 shows the side view of a fuel nozzle 1.
- a cylindrical nozzle body 3 tapers in a frusto-conical section to a also cylindrical mouth region 5 with a Face 5A.
- a mouth channel 7 Directed along a nozzle axis 2 runs in the fuel nozzle 1 a mouth channel 7, at the end of the mouth region 5 with a mouth edge 9 opens.
- a bevel 10 of the channel wall 8 of the mouth channel 7 visible is.
- this bevel 10 is the mouth edge 9 not rotationally symmetrical about the nozzle axis 2. This becomes clear in FIG.
- FIG. 2 shows a plan view of the fuel nozzle 1 of Figure 1.
- the Mouth edge 9 By two opposing Bevels 10 of the channel wall 8 receives the Mouth edge 9 a twofold symmetry.
- the Mouth edge 9 thus corresponds to a contour, the through the outer edge of a rectangle 11 and a Circle 13 is formed, with the circle 13 with his Center 15 on the center of gravity 17 of the rectangle 11 and over the narrow side of the rectangle 11 protrudes.
- the fuel nozzle 1 also has a cheap Influence on nitrogen oxide reduction.
- the Distorted fuel cone allows a better fine distribution reach of liquid fuel. Especially results in a small droplet size for the fuel. Due to the better distribution and the small droplet size of the fuel results in a Equalization of the flame temperatures of Combustion. As a result, not so high maximum temperatures achieved, which significantly affects the production of nitrogen oxides determine.
- a non-rotationally symmetric fuel cone 33 results in a better penetration of liquid Fuel and water.
- FIG. 3 is a plan view of a fuel nozzle 1 shown.
- the difference to the fuel nozzle 1 of Figures 1 and 2 is that the mouth edge FIG. 9 shows a contour passing through a Rectangle 21 and a vertical rectangle 23 is formed.
- the two rectangles 21, 23 point a common center of gravity 25, 27.
- FIG 4 is a longitudinal section through the mouth area 5 of a fuel nozzle 1 shown. Of the Fuel channel 7 expands to the mouth edge. 9 out.
- Two opposite points P1, P2 on the channel wall 8 have opposite to an arbitrary one Nullage an axial position B along the nozzle axis 2 on.
- the point P1 has a distance A1 to the Nozzle axis 2.
- the point P2 has a distance A2 to the Nozzle axis 2.
- the distance A1 is greater than the distance A2.
- the respective distance changes A to the nozzle axis 2 steadily.
- a fuel stream in the mouth channel 7 is a non-rotationally symmetric Mold imprinted. This manifests itself at the outlet of the fuel from the mouth channel. 7 in a non-rotationally symmetric, distorted Fuel cone 33. This has the advantages explained above with regard to the suppression of combustion vibrations and the reduction of nitrogen oxide emissions result.
- FIG. 5 shows a plan view of a fuel nozzle 1.
- FIG. 6 shows the fuel nozzle 1 of the figure 5 in a side view.
- a semi-cylindrical notch 31 milled or sawn, which the mouth of the mouth channel 7 intersects.
- This has the Mouth edge 9 also a notch 31.
- Notch 31 becomes liquid fuel in particular far laterally sprayed. This does not result rotationally symmetric fuel cone 33 for the off the fuel nozzle 1 leaking fuel.
- the benefits already mentioned arise for the reduction of combustion vibrations and nitrogen oxide emission.
- FIG. 7 shows a burner arrangement 40 a plurality of burners 42 in an annular combustion chamber 44 of a gas turbine, not shown.
- the Ring combustion chamber 44 is rotationally symmetrical about a Combustion chamber axis 46. It has an inner wall 48th and an outer wall 50 enclosing an annular space 51.
- the inside of the outer wall 50 and the Outside of the inner wall 48 are refractory Outside clothing 52 provided.
- the mouth edges 9 of the burners 42 are not rotationally symmetrical and irregular to each other oriented. This results in a reduced slope for the formation of a combustion vibration, as the from the individual burners 42 emanating combustion vibrations overlap irregularly and largely extinguish it.
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)
- Gas Burners (AREA)
- Spray-Type Burners (AREA)
Abstract
Description
- Figur 1
- die Seitenansicht einer Brennstoffdüse,
- Figur 2
- die Draufsicht auf die Brennstoffdüse der Figur 1,
- Figur 3
- eine Draufsicht auf eine weitere Brennstoffdüse,
- Figur 4
- einen Längsschnitt durch den Mündungsbereich einer Brennstoffdüse,
- Figur 5
- eine Draufsicht auf eine weitere Brennstoffdüse,
- Figur 6
- eine Seitenansicht der Brennstoffdüse aus Figur 5 und
- Figur 7
- eine Brenneranordnung in einer Ringbrennkammer.
Claims (14)
- Brenner (42) für eine Gasturbine, insbesondere für eine stationäre Gasturbine, mit einer Brennstoffdüse (1) für flüssigen Brennstoff mit einem Mündungsbereich (5), in dem sich entlang einer Düsenachse (2) ein Mündungskanal (7) erstreckt, welcher Mündungskanal (7) an einem Mündungsrand (9) nicht-konvergierend endet,
dadurch gekennzeichnet, daß der Mündungsrand (9) nicht rotationssymmetrisch um die Düsenachse (2) ist. - Brenner (42) nach Anspruch 1,
dadurch gekennzeichnet, daß der Mündungsrand (9) unsymmetrisch um die Düsenachse (2) ist. - Brenner (42) nach Anspruch 1,
dadurch gekennzeichnet, daß der Mündungsrand (9) eine zweizählige Symmetrie aufweist. - Brenner (42) nach Anspruch 3,
dadurch gekennzeichnet, daß der Mündungsrand (9) eine Ellipse ist. - Brenner (42) nach Anspruch 3,
dadurch gekennzeichnet, daß der Mündungsrand (9) ein Rechteck ist, insbesondere mit abgerundeten Ecken. - Brenner (42) nach Anspruch 1 oder 3,
dadurch gekennzeichnet, daß der Mündungsrand (9) einer Kontur entspricht, die durch ein Rechteck (11) und einen Kreis (13) gebildet ist, wobei der Kreis (13) mit seinem Mittelpunkt (15) auf dem Schwerpunkt (17) des Rechteckes (11) liegt und über die Schmalseite des Rechteckes (11) hinausragt und wobei die Kontur den äußeren Rand des Rechteckes (11) und des Kreises (13) umschließt. - Brenner (42) nach Anspruch 1 oder 3,
dadurch gekennzeichnet, daß der Mündungsrand (9) einer Kontur entspricht, die durch zwei zueinander senkrecht stehende, einen gemeinsamen Schwerpunkt (25, 27) aufweisende Rechtecke (21, 23) gebildet ist, wobei die Kontur den äußeren Rand beider Rechtecke (21, 23) umschließt. - Brenner (42) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Mündungskanal (7) eine Kanalwand (8) aufweist, wobei jeder Punkt (P) der Kanalwand (8) einen Achsenabstand (A) zur Düsenachse (2) und eine axiale Position (B) entlang der Düsenachse (2) aufweist und wobei der Achsenabstand (A) für mindestens zwei Punkte (P1, P2) auf der Kanalwand (8), welche die gleiche axiale Position (B) aufweisen, unterschiedlich ist.
- Brenner (42) nach Anspruch 8,
dadurch gekennzeichnet, daß sich der Achsenabstand (A) für Punkte (P) auf der Kanalwand (8) gleicher axialer Position (B) entlang einer Umfangsrichtung (U) um die Düsenachse stetig ändert. - Brenner (42) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Mündungskanal (7) sich zum Mündungsrand (9) hin erweitert.
- Brenner (42) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Mündungsrand (9) eine Einkerbung (31) aufweist.
- Brenner (42) nach einem der vorhergehenden Ansprüche für Erdöl.
- Brenneranordnung (40) mit mehreren Brennern (42), welche in einer gemeinsamen Brennkammer (44) angeordnet sind, wobei mindestens zwei der Brenner (42) nach einem der vorhergehenden Ansprüche ausgestaltet sind.
- Brenneranordnung (40) nach Anspruch 13,
die in einer Ringbrennkammer (44) für eine Gasturbine angeordnet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19825028 | 1998-06-04 | ||
DE19825028 | 1998-06-04 | ||
PCT/DE1999/001514 WO1999063268A1 (de) | 1998-06-04 | 1999-05-20 | Brennstoffdüse |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1084368A1 EP1084368A1 (de) | 2001-03-21 |
EP1084368B1 EP1084368B1 (de) | 2002-08-14 |
EP1084368B2 true EP1084368B2 (de) | 2005-11-02 |
Family
ID=7869930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99936291A Expired - Lifetime EP1084368B2 (de) | 1998-06-04 | 1999-05-20 | Brennstoffdüse |
Country Status (5)
Country | Link |
---|---|
US (1) | US6676048B1 (de) |
EP (1) | EP1084368B2 (de) |
JP (1) | JP2002517700A (de) |
DE (1) | DE59902355D1 (de) |
WO (1) | WO1999063268A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6805832B2 (en) * | 2001-07-09 | 2004-10-19 | Jonathan Mohler | Thermite torch cutting nozzle |
GB0219461D0 (en) * | 2002-08-21 | 2002-09-25 | Rolls Royce Plc | Fuel injection arrangement |
EP1730447A1 (de) * | 2004-03-31 | 2006-12-13 | Alstom Technology Ltd | Brenner |
US7572997B2 (en) * | 2007-02-28 | 2009-08-11 | Caterpillar Inc. | EDM process for manufacturing reverse tapered holes |
US8146365B2 (en) * | 2007-06-14 | 2012-04-03 | Pratt & Whitney Canada Corp. | Fuel nozzle providing shaped fuel spray |
EP2423589A1 (de) * | 2010-08-27 | 2012-02-29 | Siemens Aktiengesellschaft | Brenneranordnung |
DE102012002465A1 (de) * | 2012-02-08 | 2013-08-08 | Rolls-Royce Deutschland Ltd & Co Kg | Gasturbinenbrennkammer mit unsymmetrischen Kraftstoffdüsen |
GB201222304D0 (en) * | 2012-12-12 | 2013-01-23 | Rolls Royce Plc | A fuel injector and a gas turbine engine combustion chamber |
JP6563687B2 (ja) * | 2014-06-18 | 2019-08-21 | リンナイ株式会社 | コンロバーナ用二重ノズル |
JP2018507265A (ja) * | 2014-12-04 | 2018-03-15 | エクソンモービル リサーチ アンド エンジニアリング カンパニーExxon Research And Engineering Company | 流動床反応器用の流体注入ノズル |
WO2019177947A1 (en) * | 2018-03-12 | 2019-09-19 | Buckner Todd T | Drying system for car wash facility |
US20230204215A1 (en) * | 2021-12-29 | 2023-06-29 | General Electric Company | Fuel nozzle and swirler |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2583726A (en) * | 1948-01-26 | 1952-01-29 | Chalom Joseph Aaron | Nozzle |
US3101906A (en) * | 1962-01-11 | 1963-08-27 | Carl R Webber | Spray nozzle |
US3521824A (en) * | 1968-10-11 | 1970-07-28 | Delavan Manufacturing Co | Air-liquid flat spray nozzle |
DE2033118A1 (de) | 1970-07-03 | 1972-01-05 | Pensenskij Kompressornyj Sawod | Gasbrenner |
US3638865A (en) * | 1970-08-31 | 1972-02-01 | Gen Electric | Fuel spray nozzle |
DE2739102A1 (de) * | 1977-08-30 | 1979-03-15 | Patra Patent Treuhand | Brenner |
DD134976B1 (de) * | 1978-03-16 | 1980-12-24 | Helmut Nehrig | Einspritzduese fuer brennkraftmaschinen |
CH635171A5 (de) * | 1978-06-08 | 1983-03-15 | Bbc Brown Boveri & Cie | Einrichtung an einem diffusor zum unterdruecken von resonanzen. |
US4218020A (en) * | 1979-02-23 | 1980-08-19 | General Motors Corporation | Elliptical airblast nozzle |
DE3235080A1 (de) | 1982-09-22 | 1984-03-22 | Kraftwerk Union AG, 4330 Mülheim | Ruecklaufeinspritzduese fuer die zerstaeubung von fluessigkeiten |
US4638636A (en) * | 1984-06-28 | 1987-01-27 | General Electric Company | Fuel nozzle |
KR930004967B1 (ko) * | 1988-07-13 | 1993-06-11 | 가부시기가이샤 히다찌세이사꾸쇼 | 전자식 연료 분사밸브 |
US4970865A (en) * | 1988-12-12 | 1990-11-20 | Sundstrand Corporation | Spray nozzle |
US5095696A (en) * | 1990-01-02 | 1992-03-17 | General Electric Company | Asymmetric flameholder for gas turbine engine afterburner |
IT223984Z2 (it) * | 1990-01-17 | 1995-10-05 | Weber Srl | Valvola di un dispositivo di alimentazione di un motore a combustione interna |
US5235813A (en) * | 1990-12-24 | 1993-08-17 | United Technologies Corporation | Mechanism for controlling the rate of mixing in combusting flows |
DE4104019C1 (de) * | 1991-02-09 | 1992-04-23 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
FR2685452B1 (fr) * | 1991-12-24 | 1994-02-11 | Snecma | Dispositif d'injection de carburant pour une chambre de combustion de turbomachine. |
JP3052525B2 (ja) * | 1992-01-30 | 2000-06-12 | 株式会社日立製作所 | 電磁式燃料噴射弁の加工方法 |
US5373694A (en) * | 1992-11-17 | 1994-12-20 | United Technologies Corporation | Combustor seal and support |
DE29511384U1 (de) * | 1995-07-14 | 1995-10-12 | Fa. J. Eberspächer, 73730 Esslingen | Verdampfungsbrennkammer für ein mit flüssigem Brennstoff betriebenes Heizgerät |
US5515814A (en) * | 1995-09-06 | 1996-05-14 | Transglobal Technologies, Limited | Apparatus and method for supplying fuel to internal combustion engines |
DE19541303A1 (de) | 1995-11-06 | 1997-05-28 | Siemens Ag | Gasturbine |
FR2748088B1 (fr) * | 1996-04-24 | 1998-05-29 | Snecma | Optimisation du melange de gaz brules dans une chambre de combustion annulaire |
WO1999006767A1 (de) * | 1997-07-31 | 1999-02-11 | Siemens Aktiengesellschaft | Brenner |
US6119459A (en) * | 1998-08-18 | 2000-09-19 | Alliedsignal Inc. | Elliptical axial combustor swirler |
-
1999
- 1999-05-20 DE DE59902355T patent/DE59902355D1/de not_active Expired - Fee Related
- 1999-05-20 EP EP99936291A patent/EP1084368B2/de not_active Expired - Lifetime
- 1999-05-20 US US09/701,980 patent/US6676048B1/en not_active Expired - Fee Related
- 1999-05-20 JP JP2000552433A patent/JP2002517700A/ja not_active Abandoned
- 1999-05-20 WO PCT/DE1999/001514 patent/WO1999063268A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE59902355D1 (de) | 2002-09-19 |
JP2002517700A (ja) | 2002-06-18 |
EP1084368A1 (de) | 2001-03-21 |
WO1999063268A1 (de) | 1999-12-09 |
US6676048B1 (en) | 2004-01-13 |
EP1084368B1 (de) | 2002-08-14 |
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