EP1754003B1 - Bruleur a premelange a alimentation etagee en combustible liquide - Google Patents

Bruleur a premelange a alimentation etagee en combustible liquide Download PDF

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Publication number
EP1754003B1
EP1754003B1 EP05752777A EP05752777A EP1754003B1 EP 1754003 B1 EP1754003 B1 EP 1754003B1 EP 05752777 A EP05752777 A EP 05752777A EP 05752777 A EP05752777 A EP 05752777A EP 1754003 B1 EP1754003 B1 EP 1754003B1
Authority
EP
European Patent Office
Prior art keywords
fuel
liquid fuel
air inlet
premix burner
feed
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.)
Not-in-force
Application number
EP05752777A
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German (de)
English (en)
Other versions
EP1754003A1 (fr
Inventor
Peter Dr. Flohr
Gijsbertus Oomens
Martin Zajadatz
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General Electric Technology GmbH
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Alstom Technology AG
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Publication of EP1754003A1 publication Critical patent/EP1754003A1/fr
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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
    • F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
    • F23R3/36—Supply of different fuels
    • 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
    • F23D11/40—Mixing tubes or chambers; Burner heads
    • F23D11/402—Mixing chambers downstream of the nozzle
    • 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
    • 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
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
    • F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/07002—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 with staged liquid fuel supply with at least two, axially conically widening swirl space radially tapering Operakegelschalen, which are partially overlapping, the Operakegelschalenmittenachsen offset from each other and their mutually overlapping Operakegelschalen Suitee each include a tangent to the swirl space extending air inlet slot , with a burner lance projecting axially into the swirl space, which provides means for feeding liquid fuel into the swirl space, as well as with further means for feeding liquid fuel, which are provided in the region of the air inlet slots.
  • the US 5,244,380 describes a premix burner type a Operakegelbrenners, the axially conically expanding burner space is radaialseits bounded by two Operakegelschalen arranged such that their Generalkegelmittenachsen offset from each other, the Operakegelschalen along their Generalkegelschalenurbanten overlap each other and include tangentially extending air inlet slots with each other through which air can enter the swirl space for further mixing with fuel.
  • the Vormischbrenner described in the above document provides a centrally located inside the burner Fuel nozzle, which opens from the side of the burner chamber in the region of the smallest burner chamber diameter at least partially axially in the burner and at least one fuel nozzle provides, can be fed via the liquid fuel in the form of a conically widening in the swirl space fuel spray cloud.
  • the residence time of the fuel within the burner is always shorter than the time span within which the other fuel feed-in phases develop, combustion takes place by way of diffusion, which ultimately releases high amounts of nitrogen oxides and, in addition, high turbine outlet temperatures.
  • the liquid fuel leaving the central fuel nozzle is mixed with demineralized water, which reduces the nitrogen oxide emission as well as the high burner outlet temperatures, which ultimately limit the life of the burner components as well as the components in contact with the hot gases.
  • the premix burner described in the aforementioned patent provides additional fuel nozzles mounted in the region of the air inlet slots.
  • the atomization of the liquid fuel takes place in the direction of the longitudinal extent of the respective air inlet slots, in order to allow thorough mixing of the fuel with the supply air before it enters the burner chamber.
  • the disadvantage is the low penetration capacity of the fuel feed in the longitudinal direction to the air inlet slots. This has the consequence that the inner wall portions of the partial cone shells can be wetted with fuel, which causes occurring directly on the inner walls Abbranderscheinept the risk of local material overheating of the self-cone shells arise.
  • the invention has the object of providing a Vormischbrenner with staged liquid fuel supply with at least two, an axially widening conically expanding swirl space radially bounding Operakegelschalen according to the features of the preamble 1 such that the above-mentioned prior art disadvantages should be avoided.
  • it is a liquid fuel fuelable premix burner in a stepped mode, i. both a fuel feed via a central burner nozzle, as well as along the air inlet slots, depending on the burner load to operate individually with liquid fuel, for the purpose of reduced nitrogen oxide emissions in the entire burner load range.
  • Particular attention is given to the formation of an always stable combustion while largely avoiding forming within the burner system thermoacoustic vibrations.
  • the premix burner according to the features of claim 1 means for feeding liquid fuel, which are arranged along at least one air inlet slot so that the liquid fuel discharge due to the means for feeding liquid fuel in the form of a perpendicular to the tangential longitudinal extent of the air inlet slot and a is perpendicular to an airflow directed through the air inlet slot spreading fuel spray.
  • the means for liquid fuel feed along the air inlet slot in the form of a plurality of individual fuel nozzles are formed, which are arranged along the air inlet slot, preferably in the inner wall portion of a Operakegelschale, the nozzle outlet of each individual fuel nozzle is flush with the local Generalkegelschalenwand that from each individual fuel nozzle by atomization of fuel, a fuel spray is formed, which propagates substantially perpendicular to the partial cone wall in the region of the air inlet slot or adjacent to the air inlet slot space area.
  • the fuel spray spreads to form a conically widening cloud whose main propagation direction is perpendicular to the plane of the nozzle outlet opening. In this way effective wetting of the Detailkegelwandvid is effectively countered with liquid fuel. Local burn-off phenomena of fuel directly on the part cone wall surface can be completely ruled out.
  • the shear forces between the fuel sprays and the air flow contribute to a shear efficiency improving scission efficiency, whereby the liquid fuel droplets discharged through the fuel jets continue to burst and thus shrink, so that liquid fuel droplets are formed with droplet sizes between 20 and 50 microns, which are subject to an immediate evaporation process, which ultimately forms a completely mixed fuel-air mixture.
  • the liquid fuel nozzles arranged along the respective air inlet slot are connected via a common liquid fuel line, which can be modularly integrated into the wall region of a partial cone shell.
  • the number and the respective mutual distance between two adjacent liquid fuel nozzles along such a modularly designed liquid fuel supply unit are to be chosen taking into account a forming within the burner fuel-air mixture.
  • EP 0 916 894 A discloses a premix burner of the type of a Generalkegelbrenners whose swirl space axially adjoins a mixing tube.
  • the wall of the mixing tube is provided with holes for supplying air.
  • the premix burner shown has an axially widening conically expanding swirl space 1, which is bounded by two partial cone shells 2, 3 radially.
  • the partial cone shells 2, 3 are arranged partially interlocking and border with their tangentially extending side edges two air inlet slots 4, 5 a.
  • combustion air enters tangentially into the swirl space 1 and spreads axially within the swirl space as a conically widening swirl flow.
  • the flow characteristic of the swirl flow forming within the swirl space 1 is essentially determined by the clear width of the air inlet slots 4, 5 and by the cone angle, which is enclosed by the two partial cone shells 2, 3 with the center axis A.
  • annular plate 6 Downstream of the burner housing or the partial cone shells 2, 3, an annular plate 6 is provided, which provides for a discontinuous flow transition at the burner outlet and also provides a plurality of holes through which additional air in the region of the downstream of the burner combustion chamber (not shown) for flame stabilization purposes. Due to the unsteady flow transition between the burner and the combustion chamber, the swirl flow emerging from the burner breaks off and forms a backflow zone, within which the fuel-air mixture is caused to ignite.
  • the feeding of fuel into the burner usually takes place via a centrally arranged fuel nozzle 13, via which liquid fuel in the form of a finely atomized fuel spray is introduced into the swirl space. It appears, that the outer contour of the fuel nozzle 13 and its position relative to the swirl chamber 1 has a flow-dynamically stabilizing effect on the swirl flow forming within the swirl chamber 1.
  • the centrally mounted fuel nozzle 13 may be mounted centrally in the region of the smallest swirl space cross section, as can be seen from the exemplary embodiment according to FIG. It is also possible to provide the fuel nozzle 13 at the tip of a burner lance 6, which extends far into the swirl chamber 1 of the burner (see burner cross-sectional view of Figure 2a, which will be discussed in more detail below).
  • the latter fuel nozzle assembly ensures that the firing event of the liquid fuel spray discharged from the burner lance, which mixes with the air flow of the swirl flow, ignites outside the burner within the recirculation zone.
  • a known premix burner provides, in addition to the above-described, centrally arranged fuel nozzle additional fuel supply means, can be introduced via the gaseous fuel in the region along the air inlet slots 4, 5.
  • the gaseous fuel is provided via tangentially to the air inlet slots 4, 5 extending fuel supply lines 7, 8, which is fed via not shown fuel nozzles in the region of the air inlet slots. Due to the possibility of fuel feed through both the centrally arranged fuel nozzle 2, as well as the longitudinally arranged via the air inlet slots 4, 5 Brennstoffzu brieflyen 7, 8, it is possible to make the fuel supply spatially separated from each other, and this in dependence of the burner load.
  • stage 2 Due to the spatially divided fuel supply, which is also referred to as stepped fuel supply, it is possible to operate the burner in the entire burner load range to form a stable flame within the scanströmzone and the lowest possible nitrogen oxide emissions.
  • the centrally arranged fuel nozzle as stage 1 and the fuel supply distributed along the air inlet slots 4, 5 are referred to as stage 2.
  • Previously used burners provide liquid fuel feed through the centrally located fuel nozzle through which either liquid fuel or a mixture of liquid fuel and water is introduced into the swirl space.
  • the mass ratio of water to liquid fuel is always less than 1.0. It is also known in the context of a dual burner concept in the centrally arranged fuel nozzle arrangement to provide at least one fuel nozzle, can be fed through the gaseous fuel axially and / or radially into the swirl space.
  • liquid fuel supply units 9, 10 are provided largely parallel to the already existing Gaszu 1500 Kochen 7.8 in the air inlet slots 4, 5 , by the liquid fuel can be selectively added to the entering through the air inlet slots 4, 5 air flow.
  • the liquid fuel supply units 9, 10 are each formed as a modular unit, which is at least partially integrated in each part cone shell 2, 3 in the region of their Ahnströmungskante, so that in each case the air flows entering through the air inlet slots 4, 5 as possible remain unimpaired from this.
  • the liquid fuel supply units 9, 10 to be regarded as stage 2 each provide a plurality of nozzle outlet openings 11 arranged longitudinally of the leading edge of the partial cone shells 2, 3, through which liquid fuel is atomized into minute fuel droplets.
  • the number of individual Düsenauslrawö Maschinenen 11 and their mutual tangential distance depend on a desired achievable liquid fuel-air distribution and can, depending on the size, shape and design of the premix burner, taking into account the lowest possible nitric oxide emissions as well as the aspect of avoiding Combustion pulsations are selected in a suitable manner.
  • Nozzle opening diameters smaller than 1 mm have been found to be particularly suitable, combined with a typical nozzle length of about 1 to 10 mm.
  • each individual liquid fuel nozzle is composed of a nozzle channel 12 and a nozzle opening 11 which is flush with the partial cone shell inner side, so that the nozzle which propagates from each individual fuel nozzle Liquid fuel spray preferably perpendicular to Operakgelschalen inner wall propagates.
  • the fuel spray propagating from each individual fuel nozzle forms a conically expanding fuel spray cloud which includes a cone angle of ⁇ 45 ° with respect to an axis perpendicularly intersecting the nozzle orifice.
  • the liquid fuel supply units 9, 10 preferably downstream of the leading edge of a respective subcone shell 2, 3 are arranged so that the nozzle outlet openings 11 is not a Generalkegelschalenwand opposite and so the From the fuel nozzle openings exiting fuel spray clouds can freely propagate into the interior of the swirl chamber 1.
  • liquid fuel supply units In order to ensure the highest possible degree of atomization and the greatest possible depth of penetration of the liquid fuel to be introduced into the swirl space by the liquid fuel supply units, ie preferably to aim fuel droplets with droplet diameters of 50 microns maximum, preferably between 20 and 50 microns, is for a fuel supply pressure within the liquid fuel lines of at least To provide 20 bar.
  • the burner sees due to the parallel fuel supply of gaseous and liquid fuels along the Air inlet slots 4, 5, the possibility of a dual burner concept, which can be operated in dependence on the respective fuel storage and / or the burner load.
  • the liquid fuel supply units 9, 10 Due to the modular structure of the liquid fuel supply units 9, 10, the retrofittability to existing burner systems is also possible in principle.
  • the liquid fuel supply units to be modularly integrated within the partial cone shells, which are to be provided in each case, can be designed as one-piece supply lines, as shown in detail in FIG.
  • the upper image representation in FIG. 3 shows a liquid fuel channel which can be adapted to the outer contour of a conical double-cone burner in accordance with the illustration in FIG. 1 or 2.
  • the equitistantly spaced apart fuel nozzles are each represented by the reference numeral 11.
  • FIG. 3 shows a rectilinear fuel line, which is used in conjunction with a mixing tube, which adjoins immediately downstream of a conical premix burner.
  • a mixing tube which adjoins immediately downstream of a conical premix burner.
  • FIG. 4a reference should first be made again to the use of a long trained burner lance 14, on whose burner lance tip a liquid fuel nozzle arrangement 13 is provided, from which a liquid fuel cloud which conically spreads at an angle ⁇ is discharged in the axial direction.
  • the various pressurized atomization techniques, with which liquid fuel is discharged from the end region of the burner lance 14, are well known to the person skilled in the art.
  • atomization angle ⁇ can be set between 0 ° and 90 °.
  • It is also possible to protect the burner lance tip against overheating provide additional air outlets that are able to effectively cool the burner lance tip.
  • the flame-determining flow field can be influenced low, so that a stable flame front can form within the combustion chamber.
  • the liquid fuel discharge via the centrally arranged burner lance 14 is particularly suitable for starting or igniting the burner and for lower burner load ranges.
  • fuel feed is to be effected via the fuel nozzles distributed along the air inlet slots 4, 5 described above.
  • the burner following the partial cone shells 2, 3 presents a mixing tube 15 in which the air-fuel mixture forming inside the swirl chamber 1 is more completely permeable to mixing, it has proved to be particularly advantageous along the mixing tube 15 for liquid-fuel nozzles Provide 16, as those who are mounted according to the invention in the air inlet slots 4, 5.
  • liquid fuel feeds are liquid fuel supply units, as schematically shown with reference to Figure 2 bottom illustration.
  • FIG. 4c shows a longitudinal section through a premix burner with partial cone shells 2, 3 and a long burner lance 14.
  • the angle of inclination ⁇ is oriented such that the nozzle exit direction is preferably oriented counter to the main flow direction that forms within the swirl space 1 (see arrow).
  • ⁇ can basically assume values for which the angle of aperture of the premix burner ⁇ is: ⁇ ⁇ ⁇ ( ⁇ + 180 °).
  • FIGS. 4d and e show premix burners, each with a mixing tube 15.
  • the exemplary embodiments are intended to illustrate the arrangement geometry of the liquid fuel nozzles 16.
  • the liquid fuel nozzles 16 may be arranged either in the circumferential direction (FIG. 4d) or in axial alignment with respectively different circumferentially oriented positions (FIG. 4e).
  • FIG. 4 d it is possible to provide for targeted reduction of thermoacoustic oscillations of a plurality of rows of liquid-fuel nozzles arranged distributed in the circumferential direction within the burner.
  • certain fuel-enriched or correspondingly lean regions can be created radially and / or axially within the mixing tube.
  • liquid fuel feed according to the invention along the air inlet slots in the manner described above according to the invention, significantly improved mixing of vaporized liquid fuel with the air entering the swirl space via the air inlet slots becomes possible, which produces stable combustion with greatly reduced nitrogen oxide emission.
  • liquid fuel atomization according to the invention along the air inlet slots enables a stable burner operation without the addition of water or only with the lowest proportions of water.

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  • 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)
  • Spray-Type Burners (AREA)

Claims (13)

  1. Brûleur à prémélange à alimentation étagée en combustible liquide, qui présente au moins deux coquilles (2, 3) en forme de partie de cône qui délimitent du côté radial un espace de tourbillonnage (1) qui s'évase coniquement dans la direction axiale, qui se superposent partiellement et dont les axes centraux de coquille en forme de partie de cône sont décalés l'une par rapport à l'autre et les parties mutuellement superposées de coquille en forme de partie de cône englobent une fente (4, 5) d'entrée d'air qui s'étend tangentiellement par rapport à l'espace de tourbillonnage (1), une lance de brûleur (14) qui pénètre axialement dans l'espace de tourbillonnage (1) et qui présente des moyens (13) d'injection de combustible liquide dans la chambre de tourbillonnage (1) ainsi que d'autres moyens (11) d'injection de combustible solide formés et disposés dans la zone de la fente (4, 5) d'entrée d'air de telle sorte que l'extraction de combustible liquide provoquée par les autres moyens s'effectue sous la forme d'un brouillard de combustible qui se propage perpendiculairement à l'extension longitudinale tangentielle de la fente (4, 5) d'entrée d'air et perpendiculairement à un écoulement d'air dirigé à travers las fente (4, 5) d'entrée d'air, un tube de mélange (15) qui se raccorde axialement à l'espace de tourbillonnage (1) étant prévu, caractérisé en ce que d'autres moyens (16) d'injection de combustible liquide s'étendent axialement dans au moins certaines parties du tube de mélange (15) de manière à pouvoir réaliser une injection de carburant liquide orientée radialement vers l'intérieur dans le tube de mélange (15).
  2. Brûleur à prémélange selon la revendication 1, caractérisé en ce que les autres moyens sont configurés comme tuyères (11) à combustible qui sont répartis le long de la fente (4, 5) d'entrée d'air.
  3. Brûleur à prémélange selon la revendication 2, caractérisé en ce que les tuyères (11) à combustible présentent toutes un diamètre d'ouverture de tuyère inférieur ou égal à 1 mm.
  4. Brûleur à prémélange selon les revendications 2 ou 3, caractérisé en ce que les tuyères (11) à combustible présentent un canal (12) de tuyère d'une longueur inférieure ou égale à 10 mm et de préférence comprise entre 1 mm et 10 mm.
  5. Brûleur à prémélange selon l'une des revendications 2 à 4, caractérisé en ce que le brouillard de combustible qui sort de chaque tuyère (11) à combustible s'étend sous la forme d'un brouillard de combustible pulvérisé qui s'évase coniquement et dont l'angle d'ouverture par rapport à l'axe central du brouillard de combustible pulvérisé qui s'évase coniquement est de ± 45°.
  6. Brûleur à prémélange selon l'une des revendications 1 à 5, caractérisé en ce que les autres moyens (11) d'injection de combustible liquide sont configurés de manière modulaire sous la forme d'une unité (9, 10) d'alimentation en combustible liquide qui peut être intégrée dans chacune des coquilles (2, 3) en forme de partie de cône et qui dispose de plusieurs tuyères (11) à combustible disposées le long de l'unité (9, 10) d'alimentation en combustible liquide.
  7. Brûleur à prémélange selon l'une des revendications 2 à 6, caractérisé en ce que les tuyères (11) à combustible sont disposées dans une coquille en forme de partie de cône en aval de la fente (4, 5) d'entrée d'air qui délimite les coquilles (2, 3) en forme de partie de cône superposées l'une à l'autre.
  8. Brûleur à prémélange selon la revendication 7, caractérisé en ce que les tuyères (11) à combustible sont disposées dans une coquille (2, 3) en forme de partie de cône de manière à ce que le brouillard de combustible qui sort de chaque tuyère (11) à combustible se propage sans obstacle dans l'espace de tourbillonnage (1).
  9. Brûleur à prémélange selon l'une des revendications 1 à 8, caractérisé en ce que les autres moyens (16), configurés comme tuyères à combustible et qui injectent le combustible liquide sont disposés périphériquement autour du tube de mélange (15).
  10. Brûleur à prémélange selon l'une des revendications 1 à 8, caractérisé en ce que les autres moyens (16), configurés comme tuyères à combustible, qui assurent l'injection de combustible liquide s'étendent axialement et sont disposés en des positions périphériques différentes autour du tube de mélange (15).
  11. Brûleur à prémélange selon l'une des revendications 1 à 10, caractérisé en ce que les autres moyens (11) d'injection de combustible liquide sont disposés et configurés de telle sorte que l'on obtienne une introduction de combustible liquide dans la zone de la fente (4, 5) d'entrée d'air sous un angle β variable ou prédéterminé de manière fixe par rapport à l'axe (A) du brûleur à prémélange.
  12. Brûleur à prémélange selon l'une des revendications 1 à 11, caractérisé en ce que la lance à combustible (14) qui pénètre axialement dans l'espace de tourbillonnage (1) présente en plus des moyens (13) d'injection de combustible liquide également des moyens d'injection d'eau ou de vapeur d'eau dans l'espace de tourbillonnage (1).
  13. Brûleur à prémélange selon l'une des revendications 2 à 12, caractérisé en ce que pour créer un brouillard de combustible dont le diamètre des gouttes est compris entre 20 et 30 µm, les tuyères à combustible (11) réparties le long de la fente (4, 5) d'entrée d'air provoquent une chute de pression d'au moins 20 bars.
EP05752777A 2004-06-08 2005-05-19 Bruleur a premelange a alimentation etagee en combustible liquide Not-in-force EP1754003B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH9722004 2004-06-08
PCT/EP2005/052315 WO2005121648A1 (fr) 2004-06-08 2005-05-19 Bruleur a premelange a alimentation etagee en combustible liquide et procede pour faire fonctionner un bruleur a premelange

Publications (2)

Publication Number Publication Date
EP1754003A1 EP1754003A1 (fr) 2007-02-21
EP1754003B1 true EP1754003B1 (fr) 2007-09-19

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EP05752777A Not-in-force EP1754003B1 (fr) 2004-06-08 2005-05-19 Bruleur a premelange a alimentation etagee en combustible liquide

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Country Link
US (1) US7997896B2 (fr)
EP (1) EP1754003B1 (fr)
CN (1) CN1965197B (fr)
AT (1) ATE373802T1 (fr)
DE (1) DE502005001545D1 (fr)
ES (1) ES2294719T3 (fr)
WO (1) WO2005121648A1 (fr)

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CH682952A5 (de) * 1991-03-12 1993-12-15 Asea Brown Boveri Brenner für eine Vormischverbrennung eines flüssigen und/oder gasförmigen Brennstoffes.
SE9304194L (sv) * 1993-12-17 1995-06-18 Abb Stal Ab Bränslespridare
DE4416650A1 (de) * 1994-05-11 1995-11-16 Abb Management Ag Verbrennungsverfahren für atmosphärische Feuerungsanlagen
DE4440558A1 (de) * 1994-11-12 1996-05-15 Abb Research Ltd Vormischbrenner
EP0916894B1 (fr) * 1997-11-13 2003-09-24 ALSTOM (Switzerland) Ltd Brûleur pour la mise en oeuvre d'un générateur de chaleur
WO2001096785A1 (fr) * 2000-06-15 2001-12-20 Alstom (Switzerland) Ltd Procede pour l'exploitation d'un bruleur et bruleur a injection etagee de gaz premelange

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WO2005121648A1 (fr) 2005-12-22
US7997896B2 (en) 2011-08-16
CN1965197B (zh) 2011-01-26
EP1754003A1 (fr) 2007-02-21
CN1965197A (zh) 2007-05-16
ATE373802T1 (de) 2007-10-15
DE502005001545D1 (de) 2007-10-31
ES2294719T3 (es) 2008-04-01
US20070099142A1 (en) 2007-05-03

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