EP1559955A2 - Brenner - Google Patents
Brenner Download PDFInfo
- Publication number
- EP1559955A2 EP1559955A2 EP05101530A EP05101530A EP1559955A2 EP 1559955 A2 EP1559955 A2 EP 1559955A2 EP 05101530 A EP05101530 A EP 05101530A EP 05101530 A EP05101530 A EP 05101530A EP 1559955 A2 EP1559955 A2 EP 1559955A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- burner
- burner according
- outlet openings
- combustion air
- 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
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Classifications
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- 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
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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
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
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- 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
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- 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
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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
-
- 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
- F23C2900/07021—Details of lances
Definitions
- the invention relates to a burner according to the The preamble of claim 1.
- a preferred application for such burners are the combustion chambers of Gas turbines; such burners will continue for example, in atmospheric boiler firing used.
- a conical burner consisting of several shells a so-called double-cone burner, according to the preamble of claim 1 is known.
- the conical swirl generator composed of several shells, a swirl flow is generated in the conical interior enclosed by the partial cone shells. Due to a jump in cross section at a combustion chamber end of the burner, the swirl flow becomes unstable, and turns into an annular swirling flow with backflow in the core. This backflow allows the stabilization of a flame front at the burner outlet.
- the shells of the swirl generator are assembled in such a way that tangential air inlet slots for combustion air are formed along the burner axis.
- Feed lines for a gaseous premix fuel which have outlet openings for the premix gas distributed in the direction of the burner axis, are provided on the inflow edge of the conical shells formed in this way.
- the gas is injected through the outlet openings or bores transversely to the air inlet gap. This injection, in conjunction with the swirl generated in the swirl space of the combustion air-fuel gas flow to a good mixing of the fuel or premixed gas with the combustion air. Good mixing in such premix burners is the prerequisite for low NO x values during the combustion process.
- a burner for a Heat generator known after the swirl generator an additional mixing section to the other Mixing of fuel and combustion air having.
- This mixing section can, for example, as Downstream pipe be executed, in which the the swirl generator exiting flow without significant Flow losses is transferred. Through this additional mixing distance can be the degree of mixing further increased and thus the pollutant emissions be reduced.
- WO 93/17279 shows another known premix burner in which a cylindrical swirl generator with an additional conical inner body is used.
- the premix gas is also injected via feeders with corresponding outlet openings in the swirl space, which are arranged along the axially extending air inlet slots.
- This burner has in the conical inner body in addition to a central supply of fuel gas, which can be injected near the outlet opening of the burner for piloting into the swirl space.
- This additional pilot stage is used to start the burner.
- the supply of the pilot gas in the outlet region of the burner leads to increased NO x emissions, since in this area only an insufficient mixing with the combustion air can take place.
- EP 0918191 A1 shows a generic Burner for operating a heat generator that is parallel to a first feeder for fuel also one second feeder for another type of fuel that matched to the other fuel type is. Both feeds are independent controllable. By this configuration, the burner without modification with different fuel types operate.
- the premixing gas is injected into the air inlet gap by means of feeds with outlet openings arranged essentially in the direction of the burner axis.
- the characteristic of the injection with regard to penetration depth and mixing of the gas jets and the fuel distribution along the air inlet slots or the burner axis are predetermined.
- the arrangement of the outlet openings thus already determines the mixing quality of the gas and the combustion air and the fuel distribution at the burner outlet.
- EP 433 790 is a double cone burner or a method for operating a double-cone burner become known, in which over along the tangential Air inlet openings arranged nozzles a first Fuel, such as natural gas, in the combustion air stream is injected while upstream of the inlet the air in the burner in the area of the entry slots Channels are formed with injectors, about the second, different from the first fuel Fuel, for example, a karkalorisches Gas, which is usually flammable hydrogen contains, is injected.
- a first Fuel such as natural gas
- the object of the present invention is to provide a burner which can be operated stably even in the case of changes in the load, the gas quality or the gas preheating temperature with approximately constant NO x emission values, preferably in the premixing mode.
- the proposed burner consists of a Swirl generator for a combustion air flow, a Swirling space and means for introducing fuel into the combustion air flow, wherein the swirl generator Combustion air inlet openings for the tangential in the Having swirling space entering combustion air flow, the means for introducing fuel into the Combustion air flow one or more first fuel feeds with a first group of im Essentially arranged in the direction of the burner axis Fuel outlets for a first premix fuel quantity include and the burner one or several second fuel feeds with a second Group of essentially in the direction of the burner axis arranged fuel outlet openings for a second fuel quantity, preferably a premix fuel quantity, which second fuel feeds independent of the first fuel supply (s) be acted upon with fuel is / are.
- the proposed burner stands out in characterized in that in the swirl space an inner body is arranged, wherein the fuel outlet openings at least one second fuel supply in Essentially distributed in the direction of the burner axis are arranged in the inner body.
- the inner body one embodiment is one Fuel lance in the swirl chamber on the burner axis is arranged.
- one or more of the first Groups of fuel outlets in the area at least one of the combustion air inlet openings arranged.
- Brenners are also some of the second fuel feeders right next to the first fuel feeds, preferably parallel to these, arranged. This should be at least a second fuel supply provided next to each first fuel supply be.
- conical swirl generators there may be conical swirl generators, as they are made the aforementioned publications of the prior Technique are known, for example, two, four or more air inlet slots, are used.
- Other geometries, such as cylindrical swirl generators or cylindrical swirl generators with conical or cylindrical inner bodies can be used.
- the second fuel feeds are in an embodiment of the burner on the outer shell of the swirl body and in particular to the Air inlet slots are arranged along this.
- Essential in the present burner is that the second fuel feeds a plurality of substantially in the direction of the burner axis distributed fuel outlet openings have sufficient To be able to achieve premixing.
- the outlet openings are usually on parallel or under one a conical shape of the swirl generator or inner body predetermined angle to the burner axis extending Axes.
- the second fuel outlet openings the second fuel feeds in comparison to the first fuel outlets other mutual distances or flow cross sections exhibit.
- the respective fuel outlets also the same mutual Have distances, but offset from each other be. This leads to a more uniform injection of the premix fuel into the swirl space.
- the first fuel outlet openings over the entire axial extent of Combustion air inlet openings, the second fuel outlet openings but only in a certain be arranged axial portion.
- first fuel outlet openings only in a first axial portion and the second fuel outlets only in a subsequent to the first subarea provide second axial portion - or vice versa.
- first and second fuel feeds with the Premix fuel are these with different Equipped connections.
- Means for independent regulation or Control of premix fuel supply to the first and the second fuel supply lines Preferably, in addition Means for independent regulation or Control of premix fuel supply to the first and the second fuel supply lines.
- the different supply for example, by a suitable control valve can be controlled.
- the invention also includes such embodiments one in which next to first and second Also third, fourth, etc. fuel supplies available and be acted upon independently with fuel.
- the supply of the fuel via the first fuel feeds is controlled or regulated separately from the supply of the fuel via the second fuel feeds, wherein the same fuel is supplied to the first and second fuel feeds.
- the fuel used as Vormischbrennstoff and in variable mass flow ratio to the first and split second feedings is hereby the fuel used as Vormischbrennstoff and in variable mass flow ratio to the first and split second feedings.
- the feed of Premix fuel differs from the feed of pilot fuel, i. of fuel for the Realization of a pilot stage, in that premix fuel with a higher momentum, preferably across to the flow of combustion air, in the swirl chamber is introduced.
- pilot fuel i. of fuel for the Realization of a pilot stage
- premix fuel with a higher momentum, preferably across to the flow of combustion air, in the swirl chamber is introduced.
- the burner is in a Operated diffusion mode.
- the fuel is load-dependent distributes the first and second fuel feeds placed in the burner.
- the Brenners is in a first operating state in the Essentially the total amount of fuel over or the first fuel feeds supplied and over the first group of fuel outlets in the Combustion air flow introduced, and in one further operating state at least a part of total amount of fuel over at least one of second fuel supply to the second group of fuel discharge openings in the combustion air flow brought in.
- the burner is operated in a heat generator, so can in a part load condition of the heat generator of entire fuel over the first fuel feeds be fed, and in full load operation of the Heat generator the fuel on the first fuel supplies and one or more second fuel feeds be split.
- fuel on the first and second Fuel feeds can be the distribution also control according to other company sizes. So can the Fuel, for example, depending on measured combustion chamber pulsations of a gas turbine, pollutant emissions, measured material temperatures, from that through a flame position sensor detected flame position or other measuring or Operating parameters on the first and second fuel feeds be distributed.
- the one or more second fuel feeds by which the amount of premix fuel, the over the second group of fuel outlet openings injected into the swirling space, and thus also the fuel pre-pressure - independent of the amount of premix fuel can be adjusted can, which flows over the first fuel supply, can be a simple adjustment of the mixture distribution and the quality of mixing to different boundary conditions to reach. Furthermore, by this configuration also a balance of different Wobbe numbers achieved by, for example, the first Fuel feeds a certain power or carry a certain volume flow and the rest of the Power or the volumetric flow over the second Fuel feeds is driven.
- the burners are in strong Schematically illustrated embodiment, so that only in each case at a position for the respective explanation essential features highlighted are.
- the further design of the illustrated Brenner is the expert among others from the The prior art cited common documents that an integral part of the present Show description.
- the fuel will furthermore referred to as premix fuel; it understands itself that part of the total fuel amount in certain load ranges also as pilot fuel to further increase the flame stability can be introduced. Feeders for pilot fuel are not shown in any of the figures, as they are are not essential to the invention; in knowledge of Prior art, the expert but this without More in the example shown burner implement, if he deems it necessary.
- the illustrated Burners comprise the conical swirl body 1, in FIG its outer formwork at the inflow edges of the air inlet slots a first group of outlet openings 6 are arranged for premixed gas.
- the burners are furthermore with a central fuel lance 12 equipped, which at its combustion chamber end, i.e. at its top, may have a nozzle - as in the present example, that for a liquid Fuel 13 or for a pilot fuel usable is. Around this nozzle can around in a known manner Outlets for shielding air 14 may be provided.
- the fuel lance 12 In addition to the fuel supplies to the first group of outlet openings 6 and a fuel supply for injection of liquid fuel 13 at the top the fuel lance 12 have the burner shown another fuel supply to a second Group of outlet openings 8 in the fuel lance 12 on.
- the outlet openings 8 of the second group are essentially in the direction of the burner axis in the lateral surface of the fuel lance 12 arranged as can be seen in Figures 19 to 21, and preferably radially symmetric about the axis of the fuel lance 12 distributed. They allow the radial of the Fuel lance 12 outward injection of Fuel in the swirl chamber.
- the number and size these outlet openings 8 and their distribution the fuel lance 12 - in the axial direction and Circumferential direction - will depend on the respective Requirements of the burner such as extinction limits, Pulsations and setback limits selected.
- the fuel lance 12 may be relatively far in extend the swirl space, so-called “Long Lance EV Burner”, as shown in Figures 1 and 2, or protrude into the swirl chamber for a short while as well the figure 3 shown.
- the second group of outlet openings 8 preferably in rear, i. farthest from the combustion chamber removed, area of the swirl space at the fuel lance 12 arranged as indicated in the figures.
- the embodiment of Fig. 1 leaves a very advantageous stepped mode of operation of the burner, at which both the fuel supplies to the first Group of outlet openings 6 and the fuel feeds to the second group of outlet openings 8 are fed with premix gas.
- the Independent Control possibility of the fuel supply to the first and second group of outlet openings 6, 8 allows one to the respective operating conditions of the Burner or the burner using the system optimally adapted mode of operation.
- the second group of Outlets 8 are located on the fuel lance 12 in this example, outlet openings of the first Group of outlet openings 6 on the swirl body. 1 opposite, so that the first and second group of Outlet openings 6, 8 in certain operating conditions for example, also exclusively, i. without the each other group, be fueled can.
- the one shown in the figure Burner with appropriate supply of fuel and corresponding embodiment of the second group of Outlets over these outlet openings 8 also be operated in diffusion mode.
- the spatial Separation of the outlet openings 8 of the injection liquid fuel 13 at the top of the fuel lance 12 can be contrasted in this case known burners the penetration of fuel droplets or fuel vapor into the fuel supply system for the second group of outlet openings 8 avoid.
- FIG. 2 shows an embodiment of a burner, which are also in the very advantageous tiered Operation can be operated.
- the outlet openings 6 closed or there are no outlet openings 6 provided because their function of the outlet openings 8 is taken on the fuel lance 12.
- Figure 21 shows the same burner with shortened Fuel lance 12, for the same operation is trained.
- FIG. 5 shows this again with the first 5 and the second feed channel 7 with the corresponding outlet openings 6, 8.
- the first feed channel arranged in the outer formwork of the swirl body 1 and the second feed channel 7 is cylindrical Inner body 9 is arranged.
- the second feed channel 7 is in this case preferably within the outer wall of the Inner body 9 is arranged, wherein also in this case, as in the previous examples a symmetric Distribution of several feed channels 7 around the burner axis 3 can be selected.
- the second supply 7 central to let run in the inner body 9, in which case the Outlet openings 8 via corresponding radially extending Channels to the swirl space 2 must be formed.
- the front tapered area of the inner body 9 can also have one or more additional outlet openings with a correspondingly separate feeder for fuel (as a pilot stage) or air provided be.
- FIGS. 6 to 9 schematically show examples of swirl generator geometries with which the described Burner can be realized.
- a burner with conical Swirl body 1 and conical inner body 9 a burner formed in the form of an inverted cone Swirl body 1 and conical inner body 9, a burner with tulip-shaped and a burner with funnel-shaped Swirl body 1 shown.
- all Geometries shown here are common that the axial flow cross-section of the swirl space in the area of the swirl body towards the burner outlet increases towards. This is not absolutely necessary for a generic Vormischbrenner, but is a advantageous embodiment of the swirl generator.
- FIGS. 12 and 13 show schematically two examples of the structure of a swirl body in cross-section, as in the burner according to the invention can be used.
- Figure 12 is a swirl body represented, which are offset from four against each other Shells 1a, 1b, 1c, 1d composed in the illustrated arrangement four tangential air inlet slots 4 form.
- the cups can be shown in the picture Cross-section different, for example circular segment, elliptical or oval, be formed.
- at the dargestllten configuration are the body part 1a, 1b, 1c, 1d arranged so that their respective central axes 3a, 3b, 3c, 3d offset to the actual Burner axis are arranged.
- FIG. 13 a monolithic swirl body 1 with incorporated therein tangential air inlet openings 4 shown.
- Figures 14 and 15 show examples of feeding a fuel amount P0 to the burner. By both Examples branches the fuel line to the Total fuel quantity P0 to a fuel quantity P1 for the first group of outlet openings 6 and on a fuel amount P2 for the second group of Distribute outlet openings 8.
- FIG 14 the discontinuation of or mass flow ratio via one valve 15 and 16 in each of the branches.
- Figure 15 shows an embodiment in which a valve 16 before the Branching to set the total fuel quantity P0 and another valve 15 in the branch to first group of outlet openings 6 is arranged.
- the valve 15 can be here also the Change the mass flow ratio between P1 and P2.
- the valve 15 also in the branch to the second group of Outlets 8 may be arranged.
- the mass flow ratio P1 / P2 by controlling the Valves depending on the operating condition of the Brenner changed.
- the change of the mass flow ratio may vary depending on different measurement and Operating parameters are controlled or regulated, like this already in a previous part of the this description has been carried out.
- the Embodiments shown are independent of the Burner geometry and can be with all burners of use previous embodiments.
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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)
- Combustion Of Fluid Fuel (AREA)
Abstract
Description
- Figur 1
- ein erstes Beispiel für einen vorgeschlagenen Brenner;
- Figur 2
- ein zweites Beispiel für einen vorgeschlagenen Brenner;
- Figur 3
- ein drittes Beispiel für einen vorgeschlagenen Brenner;
- Figur 4
- ein Beispiel für die Betriebsweise eines vorgeschlagenen Brenners; und
- Figur 5
- ein viertes Beispiel für einen vorgeschlagenen Brenner;
- Figuren 6 bis 11
- Beispiele für die Ausgestaltung des Konturverlaufs des Drallerzeugers eines vorgeschlagenen Brenners;
- Figuren 12 und 13
- Beispiele für Ausgestaltungen der Drallerzeuger im Querschnitt ;
- Figuren 14 und 15
- schematisch zwei Beispiele für die Ausgestaltung der Brennstoffzuführungen zum Betrieb eines vorgeschlagenen Brenners.
- 1
- Drallerzeuger
- 1a
- Drallerzeuger-Teilkörper
- 1b
- Drallerzeuger-Teilkörper
- 1c
- Drallerzeuger-Teilkörper
- 1d
- Drallerzeuger-Teilkörper
- 2
- Drallraum
- 3
- Brennerachse
- 3a
- Achse eines Drallerzeuger-Teilkörpers
- 3b
- Achse eines Drallerzeuger-Teilkörpers
- 3c
- Achse eines Drallerzeuger-Teilkörpers
- 3d
- Achse eines Drallerzeuger-Teilkörpers
- 4
- Eintrittsöffnungen/Luftschlitze
- 5
- erste Brennstoffzuführungen
- 6
- erste Brennstoff-Austrittsöffnungen
- 7
- zweite Brennstoffzuführungen
- 8
- zweite Brennstoff-Austrittsöffnungen
- 9
- Innenkörper
- 10
- Vormischrohr
- 11
- Verbrennungsluft
- 12
- Brennstofflanze
- 13
- flüssiger Brennstoff
- 14
- Abschirmluft
- 15
- Steuerventil
- 16
- Steuerventil
- P0
- Gesamtbrennstoffmenge
- P1
- erster Vormischbrennstoff
- P2
- zweiter Vormischbrennstoff
Claims (20)
- Brenner, im Wesentlichen bestehend aus einem Drallerzeuger (1) für einen Verbrennungsluftstrom (11), einem Drallraum (2) und Mitteln zur Einbringung von Brennstoff in den Verbrennungsluftstrom, wobei der Drallerzeuger (1) Brennluft-Eintrittsöffnungen (4) für den tangential in den Drallraum (2) eintretenden Verbrennungsluftstrom aufweist, die Mittel zur Einbringung von Brennstoff in den Verbrennungsluftstrom wenigstens eine erste Brennstoffzuführung (5) mit einer ersten Gruppe von im Wesentlichen in Richtung einer Brennerachse (3) angeordneten Brennstoff-Austrittsöffnungen (6) für eine erste Vormischbrennstoffmenge (P1) umfassen und der Brenner eine oder mehrere zweite Brennstoffzuführungen (7) mit einer zweiten Gruppe von im Wesentlichen in Richtung der Brennerachse (3) angeordneten Brennstoff-Austrittsöffnungen (8) für eine zweite Brennstoffmenge (P2) aufweist, welche zweite Brennstoff-zuführungen (7) unabhängig von den ersten Brennstoffzuführungen (5) mit Brennstoff beaufschlagbar sind,
dadurch gekennzeichnet, dass in dem Drallraum (2) ein Innenkörper (9, 10) angeordnet ist, wobei die Brennstoff-Austrittsöffnungen (8) wenigstens einer zweiten Brennstoffzuführung (7) im Wesentlichen in Richtung der Brennerachse (3) verteilt auf dem Innenkörper (9) angeordnet sind. - Brenner nach Anspruch 1,
dadurch gekennzeichnet, dass der Innenkörper (9) eine Brennstofflanze (12) ist, die an ihrem brennraumseitigen Ende zumindest eine Austrittsdüse für flüssigen Brennstoff (13) und/oder Pilotbrennstoff aufweist. - Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die auf dem Innenkörper (9) in Richtung der Brennerachse (3) verteilt angeordneten Brennstoff-Austrittsöffnungen (8) in einem vom brennraumseitigen Ende entfernten axialen Teilbereich des Innenkörpers (9) angeordnet sind. - Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die zweite Gruppe von Brennstoff-Austrittsöffnungen (8) für die Zufuhr von Vormischbrennstoff ausgebildet ist. - Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass wenigstens eine der Gruppen von Brennstoff-Austrittsöffnungen im Bereich zumindest einer der Brennluft-Eintrittsöffnungen (4) angeordnet ist. - Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass mehrere erste Brennstoffzuführungen (5) und mehrere zweite Brennstoffzuführungen (7) vorgesehen sind, wobei jeder der ersten Brennstoffzuführungen (5) wenigstens eine zweite Brennstoffzuführung (7) zugeordnet ist. - Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass zweite Brennstoffzuführungen (7) unmittelbar benachbart zu ersten Brennstoffzuführungen (5) angeordnet sind. - Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die Brennluft-Eintrittsöffnungen (4) im Wesentlichen in Richtung der Brennerachse (3) verlaufende tangentiale Eintrittsschlitze sind. - Brenner nach Anspruch 8, dadurch gekennzeichnet, dass entlang jedem Eintrittsschlitz eine erste Brennstoffzuführung (5) mit einer ersten Gruppe von Brennstoff-Austrittsöffnungen (6) angeordnet ist.
- Brenner nach einem der Ansprüche 8 oder 9, dadurch gekennzeichnet, dass entlang jedem Eintrittsschlitz wenigstens eine zweite Brennstoffzuführung (7) mit einer zweiten Gruppe von Brennstoff-Austrittsöffnungen (8) angeordnet ist.
- Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die Brennstoff-Austrittsöffnungen (8) einer oder mehrerer zweiter Brennstoffzuführungen (7) auf axialen Positionen zwischen den Brennstoff-Austrittsöffnungen (6) einer oder mehrerer ersten Brennstoffzuführungen (5) angeordnet sind. - Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die Brennstoff-Austrittsöffnungen (6, 8) aller Gruppen über die gesamte axiale Erstreckung der Brennluft-Eintrittsöffnungen (4) verteilt sind. - Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die Brennstoff-Austrittsöffnungen (6, 8) wenigstens einer der Gruppen über die gesamte axiale Erstreckung der Brennluft-Eintrittsöffnungen (4) und die Brennstoff-Austrittsöffnungen (6, 8) wenigstens einer weiteren Gruppe über einen axialen Teilbereich der Brennluft-Eintrittsöffnungen (4) verteilt sind. - Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die Brennstoff-Austrittsöffnungen (6, 8) zumindest einer der Gruppen auf einem ersten axialen Teilbereich der Brennluft-Eintrittsöffnungen (4) und die Brennstoff-Austrittsöffnungen (6, 8) anderer Gruppen auf weiteren axialen Teilbereichen der Brennluft-Eintrittsöffnungen (4) verteilt sind. - Brenner nach Anspruch 14, dadurch gekennzeichnet, dass die axialen Teilbereiche sich nicht überlappen.
- Brenner nach Anspruch 14, dadurch gekennzeichnet, dass sich wenigstens zwei der axialen Teilbereiche zumindest teilweise überlappen.
- Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die Brennstoff-Austrittsöffnungen (6, 8) von zwei oder mehreren Gruppen unterschiedliche Durchströmquerschnitte aufweisen. - Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass Mittel zur unabhängigen Steuerung der Vormischbrennstoffzufuhr zu der bzw. den ersten (5) und zu der bzw. den zweiten Brennstoffzuführungen (7) vorgesehen sind. - Brenner nach Anspruch 18,
dadurch gekennzeichnet, dass die Mittel zur unabhängigen Steuerung der Vormischbrennstoffzufuhr eine gemeinsame Brennstoffleitung aufweisen, die in eine erste Zufuhrleitung zu der bzw. den ersten (5) und in eine zweite Zuführleitung zu der bzw. den zweiten Brennstoffzuführungen (7) verzweigt, wobei zumindest in einer der Zufuhrleitungen ein Ventil (15, 16) zur Einstellung der Durchflussmenge an Brennstoff angeordnet ist. - Brenner nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass mehrere der zweiten Brennstoffzuführungen (7) unabhängig voneinander mit Brennstoff beaufschlagbar sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10029607 | 2000-06-15 | ||
DE10029607A DE10029607A1 (de) | 2000-06-15 | 2000-06-15 | Brenner mit gestufter Vormischgas-Eindüsung |
EP01951833A EP1292795B1 (de) | 2000-06-15 | 2001-06-13 | Verfahren zum betrieb eines brenners mit gestufter vormischgas-eindüsung |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP01951833A Division EP1292795B1 (de) | 2000-06-15 | 2001-06-13 | Verfahren zum betrieb eines brenners mit gestufter vormischgas-eindüsung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1559955A2 true EP1559955A2 (de) | 2005-08-03 |
EP1559955A3 EP1559955A3 (de) | 2005-10-26 |
EP1559955B1 EP1559955B1 (de) | 2015-11-04 |
Family
ID=7645902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP05101530.3A Expired - Lifetime EP1559955B1 (de) | 2000-06-15 | 2001-06-13 | Brenner |
Country Status (2)
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EP (1) | EP1559955B1 (de) |
DE (2) | DE10029607A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10164099A1 (de) | 2001-12-24 | 2003-07-03 | Alstom Switzerland Ltd | Brenner mit gestufter Brennstoffeinspritzung |
EP1730447A1 (de) * | 2004-03-31 | 2006-12-13 | Alstom Technology Ltd | Brenner |
CH703655A1 (de) * | 2010-08-27 | 2012-02-29 | Alstom Technology Ltd | Vormischbrenner für eine gasturbine. |
EP2685160B1 (de) * | 2012-07-10 | 2018-02-21 | Ansaldo Energia Switzerland AG | Multikonus-Vormischungsbrenner für eine Gasturbine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993017279A1 (en) * | 1992-02-26 | 1993-09-02 | United Technologies Corporation | Premix gas nozzle |
WO1995016881A1 (en) * | 1993-12-17 | 1995-06-22 | Abb Stal Ab | Method and apparatus for atomizing liquid fuel |
EP0777081A2 (de) * | 1995-12-02 | 1997-06-04 | Abb Research Ltd. | Vormischbrenner |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE413283C (de) * | 1925-05-05 | Faconeisen Walzwerk L Mannstae | Gasfeuerung fuer Dampfkessel und Drehtrommeln | |
EP0592717B1 (de) * | 1992-10-16 | 1998-02-25 | Asea Brown Boveri Ag | Gasbetriebener Vormischbrenner |
DE4304213A1 (de) * | 1993-02-12 | 1994-08-18 | Abb Research Ltd | Brenner zum Betrieb einer Brennkraftmaschine, einer Brennkammer einer Gasturbogruppe oder Feuerungsanlage |
DE4316474A1 (de) * | 1993-05-17 | 1994-11-24 | Abb Management Ag | Vormischbrenner zum Betrieb einer Brennkraftmaschine, einer Brennkammer einer Gasturbogruppe oder Feuerungsanlage |
US5461865A (en) * | 1994-02-24 | 1995-10-31 | United Technologies Corporation | Tangential entry fuel nozzle |
DE19531563A1 (de) * | 1995-08-28 | 1997-03-06 | Abb Management Ag | Brenner |
EP0908671B1 (de) * | 1997-10-08 | 2003-05-14 | ALSTOM (Switzerland) Ltd | Verfahren zur Verbrennung von gasförmigen, flüssigen sowie mittel-oder niederkalorischen Brennstoffen in einem Brenner |
DE59710380D1 (de) * | 1997-11-21 | 2003-08-07 | Alstom | Brenner für den Betrieb eines Wärmeerzeugers |
-
2000
- 2000-06-15 DE DE10029607A patent/DE10029607A1/de not_active Withdrawn
-
2001
- 2001-06-13 DE DE50106117T patent/DE50106117D1/de not_active Expired - Lifetime
- 2001-06-13 EP EP05101530.3A patent/EP1559955B1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993017279A1 (en) * | 1992-02-26 | 1993-09-02 | United Technologies Corporation | Premix gas nozzle |
WO1995016881A1 (en) * | 1993-12-17 | 1995-06-22 | Abb Stal Ab | Method and apparatus for atomizing liquid fuel |
EP0777081A2 (de) * | 1995-12-02 | 1997-06-04 | Abb Research Ltd. | Vormischbrenner |
Also Published As
Publication number | Publication date |
---|---|
DE10029607A1 (de) | 2001-12-20 |
EP1559955A3 (de) | 2005-10-26 |
EP1559955B1 (de) | 2015-11-04 |
DE50106117D1 (de) | 2005-06-09 |
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