EP0775869B1 - Vormischbrenner - Google Patents
Vormischbrenner Download PDFInfo
- Publication number
- EP0775869B1 EP0775869B1 EP96810756A EP96810756A EP0775869B1 EP 0775869 B1 EP0775869 B1 EP 0775869B1 EP 96810756 A EP96810756 A EP 96810756A EP 96810756 A EP96810756 A EP 96810756A EP 0775869 B1 EP0775869 B1 EP 0775869B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- duct
- premix burner
- flow
- vortex generators
- burner according
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
- F23D17/002—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel gaseous or liquid fuel
-
- 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
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- 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
- F23D14/62—Mixing devices; Mixing tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
- F23M9/02—Baffles or deflectors for air or combustion products; Flame shields in air inlets
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- 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
- F23C2900/07002—Premix burners with air inlet slots obtained between offset curved wall surfaces, e.g. double cone burners
Definitions
- the invention relates to a premix burner for combustion of gaseous and / or liquid fuel, in which the fuel as a secondary flow in a gaseous, channeled main flow is injected, the secondary flow has a much smaller mass flow than the mainstream.
- a premix burner is known from EP 0 321 809 B1 due to low NOx emission values (approx. 25 ppm) and a high one Flame stability distinguishes.
- This premix burner too Called double cone burner, consists of hollow, one into one Partial conical bodies with tangential air inlet slots for the combustion air flowing in from the compressor on and feeders for gaseous and liquid Fuels, the central axes of the hollow partial cone body a widening taper in the direction of flow have and offset to each other in the longitudinal direction run.
- Inside the burner (cone tip) is one Fuel nozzle arranged for the liquid fuel through which the fuel at an acute angle into the hollow cone is injected.
- the resulting tapered liquid fuel profile is caused by the tangentially rotating combustion air flow enclosed, the concentration in the axial direction of fuel as a result of mixing with the combustion air is constantly decreasing.
- the premix burner can too operated with gaseous fuel or in mixed operation become.
- the mixture of the gaseous forms Fuel with the combustion air already in the tangential Air inlet slots into which the gaseous fuel is introduced via uniformly distributed nozzles.
- EP 0 619 456 A1 describes a fuel supply system for a Combustion chamber with premix combustion known, in which a gaseous and / or liquid fuel as a secondary flow injected into a gaseous, channeled main flow is, the secondary flow being a much smaller one Mass flow has as the main flow and where the flows through premix channel curved walls.
- the channel is annular and on the outer as well as inner ring wall are an equal number of vortex generators strung together in the circumferential direction.
- These vortex generators point three in the direction of flow extending, freely flowed areas, one of which the roof and the other two form the side surfaces.
- the side surfaces are flush with the same duct wall and together form an arrow angle ⁇ .
- the roof area lies with a sell across the channel Edge on the same duct wall as the side surfaces and the longitudinal edges of the roof surface that are flush are with the longitudinal ones protruding into the flow channel Edges of the side surfaces run under one Angle of attack ⁇ to the duct wall.
- They are also half vortex generators possible where only one of the two side surfaces of the vortex generator with an arrow angle ⁇ / 2 while the other side is straight and in Flow direction is aligned.
- the connecting edges of Two opposite vortex generators can do this lie on the same radial or by half a division be offset.
- a device for premixing air and fuel is in a mixing channel prior to combustion in gas turbines known with a number of inner and outer independent and opposite to each other rotating vortex generators.
- the outer vortex generators also contain blades Openings for the supply of liquid or gaseous fuel.
- Compressed air is introduced into the mixing channel via the inner and outer vortex generators, to create an intense shear area.
- the high pressure air becomes uniform there mixed with the fuel, minimizing contamination during combustion arise.
- the flame stability that can be achieved here is not always sufficient.
- the invention has for its object a premix burner for the combustion of gaseous and / or liquid
- the burner is characterized by a simple geometry and reliable operating behavior should honor.
- the burner is said to be within shortest Stretch an intimate mixture of combustion air and Fuel can be achieved with more uniform at the same time Speed distribution in the mixing zone, also with such a burner without using a mechanical Flame holder is certain to kick back the flame should be avoided.
- this is according to a premix burner Preamble of claim 1, which with a fuel supply system works, which is known from EP 0 619 456 A1 is achieved in that the vortex generators used generate such vortices, which after mixing the Fuel with the air of the fuel / air mixture flow leave a residual vortex that of the canal walls formed annular main flow channel with a constant Height a length downstream of the vortex generators and the fuel injection, which in the area between the 5 to 20 times its height and that the ring-shaped Main flow channel then by closing the inner cylinder wall to a circular main flow channel expanded.
- the advantages of the invention are that Fuel supply system and the use of vortex generators on the one hand an intensive complete mixture of fuel and combustion air in a very short mixing section without transfer areas and with a uniform speed profile takes place, which is a prerequisite for minimization is the NOx content and that on the other hand due to the the vortex generators generated residual vertebrae after the Mixture still present in the fuel / air mixture flow is what affects the recirculation zone positively the flame stability increases and the cross mix of the different Improved burner in an annular combustion chamber.
- the annular premix burner according to the invention is characterized by a simple geometry and is therefore structurally easy to manufacture.
- the recirculation zone which is used as an ignition source serves for incoming fresh fuel / air mixture, it is also necessary that after a sufficient Length of the annular pre-mix section of the inner cylinder closes. This can be done gradually in a convenient manner or take place suddenly, so that the main flow channel either gradually expanded or a sudden one Transition from the ring channel to the circular channel.
- the recirculation zone then forms in a circular cross-section.
- vortex generators are an advantage in the premix burner arranged, which is approximately the shape of a rectangular Have triangle of small thickness, the two flowed around triangular side surfaces parallel to each other run and together with the roof surface the connecting surface include, the roof surface with an edge and the Connection surface with an edge on the same duct wall fit like the two side walls.
- He shows a possible embodiment in a longitudinal section of the annular premix burner according to the invention.
- He consists essentially of two cylinders with each other different diameters, which are concentric to each other are arranged so that the inner cylinder wall 21a and outer cylinder wall 21b delimit an annular channel 20.
- Vortex generators 9 are arranged, their shape and mode of action described below becomes.
- the channel 20 has a constant height H and has a length L downstream of the vortex generators, which in the Range between 5 and 20 times its height H and the premixing section for combustion air 1 and gaseous Fuel 2 forms.
- piping 3 is immediate downstream of the vortex generators 9 gaseous fuel 2 via openings 4 in the outer cylinder wall 21b as a secondary flow injected into the main flow of the ring channel 20 and mixed with the combustion air 1.
- the contribution the gaseous fuel 2 could of course also on the inner cylinder wall 21a or best on both Walls 21a and 21b take place, as in the lower part of Fig. 1 is shown.
- the variant shown in FIG. 1 closes the premixing section gradually the inner cylinder wall 21a, so that the inner cylinder is completed by a cone tip becomes.
- the outer cylinder wall 21b narrows in the area the cone tip first, before moving on encloses a circular cross section in which forms a recirculation zone that acts as an ignition source for incoming fresh fuel / air mixture is used.
- FIG. 2 is a further embodiment variant of the annular Premix burner shown.
- the inner cylinder closes after a sufficient long premixing section (length L is approx. 5 to 20 times the channel height H) suddenly, so that the transition from the ring channel 20 to the circular channel, in which the recirculation zone 22 trained, abruptly.
- the gaseous fuel 2 is here through openings on the inner and outer cylinder attached immediately downstream of the vortex generators 9 annular fuel supply lines 5 as Secondary flow into that swirled by the vortex generators Main flow introduced and intense with the air mixed.
- FIG 3 shows a third variant of the premix burner.
- Ring channel 20 vortex generators 9 arranged, via which Air 1 is carried as the main flow and swirled before immediately downstream of the vortex generators 9 gaseous Fuel is injected.
- Air 1 is carried as the main flow and swirled before immediately downstream of the vortex generators 9 gaseous Fuel is injected.
- To enhance the vortex effect are upstream of the vortex generators 9 deflection blades 8 arranged in the ring channel 20.
- the same effect can be achieved when the main flow is tangential over the annulus Slots (not shown here) enters the annular space 20 and thereby receives a tangential speed component.
- the inner cylinder also closes gradually here however not to a cone tip, but to one Hemisphere.
- the vortex generators 9 installed in the ring channel 20 can have different shapes. Essential to the invention is that they create longitudinal vortices with no recirculation area and therefore a complete one within the shortest distance Enable the fuel to be mixed with the combustion air, on the other hand, after mixing in a residual vortex the flow remains, which runs along the wake of the inner Cylinder is present. This residual vortex affects the recirculation zone and on the one hand ensures a high Flame stability and on the other hand for a good cross mix of the various burners in the ring combustion chamber.
- Vortex generators 9 are half delta wings, i.e. (see FIG. 4) that a vortex generator 9 freely flowed around three Surfaces 10, 11, 12 which extends in the direction of flow extend and one of which is the roof surface 10 and the other two form the side surfaces 11, 13 that the Side surfaces 11, 13 flush with the same channel wall 21 are and a side surface 11 provided with an arrow angle ⁇ / 2 while the other side surface 13 is straight and in Direction of flow is aligned that the roof surface 10 with an edge running transversely to the channel 20 through which flow flows 15 abuts the same channel wall 21 as the side surfaces 11, 13, and that the longitudinal edges 12, 14 of the roof surface 10, which are flush with those in the flow channel 21 protruding longitudinal edges of the side surfaces 11, 13 run at an angle of attack ⁇ to the channel wall 21.
- the two side surfaces 11, 13 comprise a connecting edge 16 with each other, which together with the longitudinal Edges 12, 14 of roof surface 10 form a tip 18, the connecting edge in the radial of the curved channel wall 21 runs.
- the connecting edge 16 and / or the longitudinal edges 12, 14 of the roof surface 10 are there at least approximately sharp.
- the vortex generator works as follows: Flow around the edge 14 of the half arrow angle ⁇ / 2 provided side surface 11, the main flow into one Vortex converted, its axis in the axis of the main flow lies. On the straight side surface 13 in the direction of flow the main flow is aligned, there will be no vortex generated so that a swirl is forced on the flow and there is no vortex-neutral field. Will now be immediate downstream of the vortex generators 9 the fuel as described above introduced as a secondary flow into the main flow, this leads to an intensive mixing of the combustion air 1 and fuel 2.
- the vortex generator 9a has approximately the shape of a rectangular triangle of small thickness on, the two flowed around triangular side surfaces 11, 13 run parallel to each other and together with the Roof surface 10 comprise the connecting surface 19, the Roof surface 10 with an edge 15 and the connecting surface 19 rest with an edge 17 on the same channel wall as that two side walls 11, 13 and the side surfaces 11, 13 with the main flow direction of the incoming air form ⁇ .
- the roof surface 10 can also be concave or convex curved his. This has 9a compared to vortex generators with a straight roof surface the advantage of being the same Vortex strength can be generated with a lower pressure drop can.
- vortex generators 9a are extremely easy to manufacture, for example by punching out thin sheets. Because the width the roof area 10 in the vortex generators 9a is small is, vortex formation practically only occurs on one Side and there is a very large vortex that the Fuel / air mixture formation positively influenced.
- FIG. 6 shows a modified embodiment of the one in FIG. 5 shown vortex generator 9a, in which the two side surfaces 11 and 13 are not rectangular in shape Have triangles, but are trapezoidal. Also these vortex generators 9a are excellent for Vortex generation suitable.
- Figures 7 to 10 show different arrangement variants the vortex generators 9 and 9a in the ring channel 20 of the premix burner.
- vortex generators 9 according to FIG. 4 are both on the inner cylinder wall 21a, as well as on the outer cylinder wall 21b arranged. They have a height h that is almost the whole Fills channel height H.
- Fig. 8 are the vortex generators 9 that are on the inner Cylinder wall 21a are arranged smaller than that on the arranged outer wall 21b, its height h is only about H / 2, while the height h of the outer vortex generators 9 is equal to the channel height H.
- vortex generators 9 different geometries create vortices different strength, which is beneficial to flame stabilization necessary residual vertebrae.
- FIG. 9 shows an arrangement of vortex generators 9a with a 6.
- the height h corresponds to the channel height H, i.e. they fill the entire channel height H.
- the flattened part of the roof surface 13 is adjacent to the inner Cylinder wall 21a.
- the resulting eddies are with arrows characterized.
- FIG. 10 there is a variant of the arrangement of the vortex generators 9a shown in FIG. 5 in the ring channel 20.
- the vortex generators 9a are both on the inner cylinder wall 21a, and also arranged on the outer cylinder wall 21b, for example welded on.
- Two opposite Vortex generators 9a are each divided by half offset to each other in the circumferential direction, so that the twist direction Outside and inside is the same and the vertebrae are like add up to a large vortex that is both sufficient is for the complete mixing of air and fuel and then as a residual vortex for flame stabilization contributes.
- the premix burner is also excellent for operation with Partial load suitable because it is due to the geometry of the burner is easily possible, pilot gas or secondary gas directly into the recirculation zone. This will limit the stability of the burner enlarged.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Description
- Fig. 1
- einen Längsschnitt eines erfindungsgemässen Vormischbrenners;
- Fig. 2
- einen Teillängsschnitt einer zweiten Ausführungsvariante des Vormischbrenners;
- Fig. 3
- einen Teillängsschnitt einer dritten Ausführungsvariante des Vormischbrenners;
- Fig. 4
- eine perspektivische Darstellung eines "halben" Wirbel-Generators des Delta-Flügel-Typs;
- Fig. 5
- eine perspektivische Darstellung einer anderen Ausführungsvariante des Wirbel-Generators;
- Fig. 6
- eine perspektivische Darstellung einer weiteren Ausführungsvariante des Wirbel-Generators;
- Fig. 7
- eine Anordnungsvariante der Wirbel-Generatoren nach Fig. 4 im Ringkanal;
- Fig. 8
- eine weitere Anordnungsvariante der Wirbel-Generatoren nach Fig. 4 im Ringkanal;
- Fig. 9
- eine Anordnungsvariante der Wirbel-Generatoren nach Fig. 6 im Ringkanal;
- Fig. 10
- eine Anordnungsvariante der Wirbel-Generatoren nach Fig. 5 im Ringkanal.
- 1
- Verbrennungsluft
- 2
- Brennstoff
- 3
- Rohrleitung
- 4
- Öffnung in Pos. 21
- 5
- Ringleitung
- 6
- Leitung für flüssigen Brennstoff
- 7
- flüssiger Brennstoff
- 8
- Umlenkschaufel
- 9,9a
- Wirbel-Generator
- 10
- Dachfläche
- 11
- Seitenfläche
- 12
- Längskante
- 13
- Seitenfläche
- 14
- Längskante
- 15
- quer verlaufende Kante von Pos. 10
- 16
- Verbindungskante
- 17
- Kante von 19
- 18
- Spitze
- 19
- Verbindungsfläche
- 20
- Ringkanal
- 21a,b
- Zylinderwand
- 22
- Rezirkulationszone
- α
- Pfeilwinkel
- β
- Winkel zwischen Hauptströmungsrichtung und Pos. 13
- Θ
- Anstellwinkel
- h
- Höhe von Pos. 9, 9a
- H
- Höhe von Pos. 20
- L
- Länge von Pos. 20
Claims (17)
- Vormischbrenner für die Verbrennung von gasförmigem und/oder flüssigem Brennstoff, wobei der Vormischbrenner mit einem Brennstoffzufuhrsystem arbeitet, bei welchem der Brennstoff als Sekundärströmung in eine gasförmige, kanalisierte Hauptströmung eingedüst wird, wobei die Sekundärströmung einen wesentlich kleineren Massenstrom aufweist als die Hauptströmung, der durchströmte Vormischkanal (20) ringförmig ist und von einer inneren (21a) und einer äusseren Zylinderwand (21b) begrenzt ist, welche Zylinderwände (21a,21b) jeweils einen konstanten Radius enttang der Länge (L) des Kanales (20) aufweisen, und wobei die Hauptströmung über Wirbel-Generatoren (9, 9a), welche Längswirbel ohne Rezirkulationsgebiet erzeugen, geführt wird, von denen über den Umfang des Ringkanals (20) an mindestens einer Kanalwand (21) mehrere nebeneinander angeordnet sind, und unmittelbar stromabwärts der Wirbel-Generatoren (9,9a) an der inneren und/oder äusseren Kanalwand (21a, 21b) Mittel zur Eindüsung von Brennstoff angeordnet sind, wobeidie Wirbel-Generatoren (9, 9a) solche Wirbel erzeugen, welche nach der vollständigen Mischung des Brennstoffes mit der Luft der Brennstoff/Luft-Gemischströmung einen Restwirbel hinterlassen,die Länge (L) des von den Kanalwänden (21a 21b) gebildeten ringförmigen Hauptströmungskanales (20) mit einer konstanten Höhe (H) stromabwärts der Wirbel-Generatoren (9) und der Brennstoffeindüsung im Bereich zwischen dem 5- bis 20-fachen seiner Höhe (H) liegt undsich der ringförmige Hauptströmungskanal (20) anschliessend durch Schliessung der inneren Zylinderwand (21a) zu einem kreisförmigen Hauptströmungskanal erweitert.
- Vormischbrenner nach Anspruch 1, dadurch gekennzeichnet, dass sich der Hauptströmungskanal allmählich erweitert.
- Vormischbrenner nach Anspruch 1, dadurch gekennzeichnet, dass sich der Hauptströmungskanal sprunghaft erweitert.
- Vormischbrenner nach Anspruch 1, dadurch gekennzeichnet,dass ein Wirbel-Generatoren (9) drei frei umströmte Flächen (10, 11, 12) aufweist, die sich in Strömungsrichtung erstrecken und von denen eine die Dachfläche (10) und die beiden anderen die Seitenflächen (11, 13) bilden,dass die Seitenflächen (11, 13) mit einer gleichen Kanalwand (21) bündig sind und eine Seitenfläche (11) mit einem halben Pfeilwinkel (α/2) versehen ist, während die andere Seitenfläche (13) gerade und in Strömungsrichtung ausgerichtet ist,dass die Dachfläche (10) mit einer quer zum durchströmten Kanal (20) verlaufenden Kante (15) an der gleichen Kanalwand (21) anliegt wie die Seitenflächen (11, 13),und dass die längsgerichteten Kanten (12, 14) der Dachfläche (10), die bündig sind mit den in den Strömungskanal (21) hineinragenden längsgerichteten Kanten der Seitenflächen (11, 13) unter einem Anstellwinkel (Θ) zur Kanalwand (21) verlaufen.
- Vormischbrenner nach Anspruch 4, dadurch gekennzeichnet, dass die beiden Seitenflächen (11, 13) eine Verbindungskante (16) miteinander umfassen, welche zusammen mit den längsgerichteten Kanten (12,14) der Dachfläche (10) eine Spitze (18) bildet, und dass die Verbindungskante in der Radialen der gekrümmten Kanalwand (21) verläuft.
- Vormischbrenner nach Anspruch 4, dadurch gekennzeichnet, dass die Verbindungskante (16) und/oder die längsgerichteten Kanten (12, 14) der Dachfläche zumindestens annähernd scharf ausgebildet sind.
- Vormischbrenner nach Anspruch 6, dadurch gekennzeichnet, dass die Verbindungskante (16) die stromabwärtige Kante des Wirbel-Generators (9) bildet und die quer zum durchströmten Kanal (20) verlaufende Kante (15) der Dachfläche (10) die von der Hauptströmung zuerst beaufschlagte Kante ist.
- Vormischbrenner nach Anspruch 1, dadurch gekennzeichnet, dass die Wirbel-Generatoren (9a) annähernd die Form eines rechtwinkligen Dreiecks geringer Dicke aufweisen, die beiden umströmten dreieckigen Seitenflächen (11, 13) parallel zueinander verlaufen und gemeinsam mit der Dachfläche (10) die Verbindungsfläche (19) umfassen, wobei die Dachfläche (10) mit einer Kante (15) und die Verbindungsfläche (19) mit einer Kante (17) an der gleichen Kanalwand anliegen wie die beiden Seitenwände (11, 13) und die Seitenflächen (11, 13) mit der Hauptströmungsrichtung der ankommenden Luft einen Winkel (β) bilden.
- Vormischbrenner nach Anspruch 8, dadurch gekennzeichnet, dass die Seitenflächen (11, 13) der Wirbel-Generatoren (9a) trapezförmig ausgebildet sind.
- Vormischbrenner nach Anspruch 8, dadurch gekennzeichnet, dass die Dachfläche (10) konvex oder konkav ausgebildet ist.
- Vormischbrenner nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Verbindungsfläche (19) die stromabwärtige Fläche des Wirbel-Generators (9a) bildet und die quer zum durchströmten Kanal (20) verlaufende Kante (15) der Dachfläche (10) die von der Hauptströmung zuerst beaufschlagte Kante ist.
- Vormischbrenner nach einem der Ansprüche 4, 8 oder 9, dadurch gekennzeichnet, dass die Höhe (h) des Wirbel-Generators (9, 9a) der Höhe (H) des Kanales (20) entspricht.
- Vormischbrenner nach Anspruch 4 oder 9, dadurch gekennzeichnet, dass an der inneren Kanalwand (21a) und an der äusseren Kanalwand (21b) ein gleiche Anzahl an Wirbel-Generatoren (9, 9a) angeordnet sind, wobei je zwei gegenüberliegende Wirbel-Generatoren (9, 9a) um eine halbe Teilung versetzt angeordnet sind.
- Vormischbrenner nach Anspruch 4 oder 9, dadurch gekennzeichnet, dass an der inneren Kanalwand (21a) und an der äusseren Kanalwand (21b) eine gleiche Anzahl an Wirbel-Generatoren (9, 9a) angeordnet sind, wobei die inneren und die äusseren Wirbel-Generatoren (9, 9a) eine unterschiedliche Geometrie aufweisen.
- Vormischbrenner nach Anspruch 1, dadurch gekennzeichnet, dass gasförmige Brennstoff über Öffnungen in der inneren und/oder äusseren Kanalwand (21a, 21b) stromabwärts der Wirbelgeneratoren (9, 9a) zugeführt wird.
- Vormischbrenner nach Anspruch 1, dadurch gekennzeichnet, dass flüssiger Brennstoff über eine stromabwärts der Wirbel-Generatoren (9, 9a) angeordnete Lanze eingedüst wird.
- Vormischbrenner nach Anspruch 15 oder 16, dadurch gekennzeichnet, dass zusätzlich flüssiger Brennstoff am Ende des inneren Zylinders eingedüst wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19543701A DE19543701A1 (de) | 1995-11-23 | 1995-11-23 | Vormischbrenner |
DE19543701 | 1995-11-23 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0775869A2 EP0775869A2 (de) | 1997-05-28 |
EP0775869A3 EP0775869A3 (de) | 1998-03-11 |
EP0775869B1 true EP0775869B1 (de) | 2001-09-05 |
Family
ID=7778238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96810756A Expired - Lifetime EP0775869B1 (de) | 1995-11-23 | 1996-11-07 | Vormischbrenner |
Country Status (4)
Country | Link |
---|---|
US (1) | US5791892A (de) |
EP (1) | EP0775869B1 (de) |
JP (1) | JPH09170729A (de) |
DE (2) | DE19543701A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0924459A1 (de) * | 1997-12-17 | 1999-06-23 | Asea Brown Boveri AG | Verfahren und Vorrichtung zum Eindüsen eines Brennstoff-Flüssigkeitsgemisches in die Brennkammer eines Brenners |
US6672862B2 (en) | 2000-03-24 | 2004-01-06 | North American Manufacturing Company | Premix burner with integral mixers and supplementary burner system |
AU2003238524A1 (en) | 2002-05-16 | 2003-12-02 | Alstom Technology Ltd | Premix burner |
DE10250208A1 (de) * | 2002-10-28 | 2004-06-03 | Rolls-Royce Deutschland Ltd & Co Kg | Vorrichtung zur Flammenstabilisierung für mager vorgemischte Brenner für Flüssigbrennstoff in Gasturbinenbrennkammern mittels Turbolatorelementen im Hauptstrom |
US7520272B2 (en) * | 2006-01-24 | 2009-04-21 | General Electric Company | Fuel injector |
US20070249738A1 (en) * | 2006-04-25 | 2007-10-25 | Haynes Joel M | Premixed partial oxidation syngas generator |
WO2008065709A1 (en) * | 2006-11-28 | 2008-06-05 | Shimadzu Corporation | Method and system for supplying conditioned air in airplane |
US20080302351A1 (en) * | 2007-06-06 | 2008-12-11 | Hunter Donald O | Gas-Fired Portable Heater |
KR100988836B1 (ko) * | 2008-05-16 | 2010-10-20 | 이재랑 | 업소용 가스버너 |
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CN102853426B (zh) * | 2012-09-29 | 2014-11-26 | 宋涛 | 预混式合金纤维灶头 |
US9285120B2 (en) | 2012-10-06 | 2016-03-15 | Coorstek, Inc. | Igniter shield device and methods associated therewith |
EP2725302A1 (de) * | 2012-10-25 | 2014-04-30 | Alstom Technology Ltd | Nachbrenneranordnung |
WO2015134009A1 (en) * | 2014-03-05 | 2015-09-11 | Siemens Aktiengesellschaft | Gas turbine engine with compressor exhaust flow static mixing system |
US10222059B2 (en) * | 2016-08-16 | 2019-03-05 | Preferred Utilities Manufacturing Corporation | Apparatus for reducing emissions when burning various fuels |
EP3563095B1 (de) * | 2016-12-29 | 2020-11-18 | I.C.I. Caldaie S.p.A. | Kessel zur bereitung von heisswasser oder dampf |
RU181834U1 (ru) * | 2018-04-24 | 2018-07-26 | Виктор Николаевич Бирюков | Устройство для сжигания газа |
CN115362333B (zh) | 2020-03-31 | 2023-08-25 | 西门子能源全球有限两合公司 | 燃烧器的燃烧器部件和燃气轮机的具有这种燃烧器部件的燃烧器 |
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WO2023030610A1 (de) * | 2021-08-31 | 2023-03-09 | Ammann Schweiz Ag | Gasbefeuerter brenner, insbesondere für eine trockentrommel einer asphaltmischanlage |
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US3958416A (en) * | 1974-12-12 | 1976-05-25 | General Motors Corporation | Combustion apparatus |
FR2316540A2 (fr) * | 1975-02-28 | 1977-01-28 | Heurtey Efflutherm | Procede et dispositif d'evaporation et d'oxydation thermique d'effluents liquides et de dechets solides sous forme pulverulente |
GB2097113B (en) * | 1981-04-22 | 1985-09-18 | Gen Electric | Low nox combustor |
ATE42821T1 (de) * | 1985-03-04 | 1989-05-15 | Siemens Ag | Brenneranordnung fuer feuerungsanlagen, insbesondere fuer brennkammern von gasturbinenanlagen sowie verfahren zu ihrem betrieb. |
DE3512702A1 (de) * | 1985-04-09 | 1986-10-09 | Martin 6349 Mittenaar Gabriel | Brenner fuer fluessige und gasfoermige brennstoffe an einem heizungskessel |
CH674561A5 (de) * | 1987-12-21 | 1990-06-15 | Bbc Brown Boveri & Cie | |
DE3835354A1 (de) * | 1988-10-17 | 1990-04-19 | Funk A Bergbau Huettenkombinat | Hochleistungsgasbrenner |
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DE59401018D1 (de) * | 1993-04-08 | 1996-12-19 | Abb Management Ag | Mischkammer |
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US5518395A (en) * | 1993-04-30 | 1996-05-21 | General Electric Company | Entrainment fuel nozzle for partial premixing of gaseous fuel and air to reduce emissions |
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DE19507088B4 (de) * | 1995-03-01 | 2005-01-27 | Alstom | Vormischbrenner |
-
1995
- 1995-11-23 DE DE19543701A patent/DE19543701A1/de not_active Withdrawn
-
1996
- 1996-11-06 US US08/744,301 patent/US5791892A/en not_active Expired - Lifetime
- 1996-11-07 DE DE59607621T patent/DE59607621D1/de not_active Expired - Lifetime
- 1996-11-07 EP EP96810756A patent/EP0775869B1/de not_active Expired - Lifetime
- 1996-11-22 JP JP8311897A patent/JPH09170729A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0775869A3 (de) | 1998-03-11 |
DE59607621D1 (de) | 2001-10-11 |
DE19543701A1 (de) | 1997-05-28 |
US5791892A (en) | 1998-08-11 |
JPH09170729A (ja) | 1997-06-30 |
EP0775869A2 (de) | 1997-05-28 |
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