EP1070915B1 - Brûleur à prémélange - Google Patents

Brûleur à prémélange Download PDF

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Publication number
EP1070915B1
EP1070915B1 EP99114377A EP99114377A EP1070915B1 EP 1070915 B1 EP1070915 B1 EP 1070915B1 EP 99114377 A EP99114377 A EP 99114377A EP 99114377 A EP99114377 A EP 99114377A EP 1070915 B1 EP1070915 B1 EP 1070915B1
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EP
European Patent Office
Prior art keywords
swirl generator
premix burner
burner according
support structure
premix
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
Application number
EP99114377A
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German (de)
English (en)
Other versions
EP1070915A1 (fr
Inventor
Bettina Dr. Paikert
Richard Strässle
Christian Dr. Steinbach
Dieter Winkler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Technology GmbH
Original Assignee
Alstom Technology AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alstom Technology AG filed Critical Alstom Technology AG
Priority to DE59909531T priority Critical patent/DE59909531D1/de
Priority to EP99114377A priority patent/EP1070915B1/fr
Publication of EP1070915A1 publication Critical patent/EP1070915A1/fr
Application granted granted Critical
Publication of EP1070915B1 publication Critical patent/EP1070915B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F23R3/42—Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
    • F23R3/60—Support structures; Attaching or mounting means
    • 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
    • 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
    • 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
    • F23R3/34—Feeding into different combustion zones
    • F23R3/343—Pilot flames, i.e. fuel nozzles or injectors using only a very small proportion of the total fuel to insure continuous combustion
    • 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
    • F23D—BURNERS
    • F23D2211/00—Thermal dilatation prevention or compensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2214/00—Cooling

Definitions

  • the invention relates to premix burners according to the preamble of independent claim.
  • each Premix burner for operation with gaseous and / or liquid fuels become known who have essential features in common. So closes each a swirl generator with tangential air inlet openings a cavity a whose cross-sectional area widens in the axial flow direction.
  • this is realized by the swirl generator is conical, while the completely equivalent in WO 93/17279 proposed solution is that the swirl generator itself is cylindrical build, and inside the cavity a conical, extending in axial Use flow tapering displacement body. Fuel is supplied to the swirl flow within the swirl generator.
  • Burners of the type known from EP 0 321 809 have been in use for years practical application in gas turbines and atmospheric Firing systems proven. That from EP 0 321 809 and from EP 0 780 629 well-known burners have been continuously developed, and Suggestions for improvement can be found in a large number of published Documents.
  • the invention seeks to remedy this.
  • the invention as in the Is characterized, the task is based on one Premix burner of the type mentioned in particular in the area of Set up feed lines for gaseous fuel so that Relative shifts of the individual components of the burner due to thermal expansion can take place unhindered.
  • the essence of the invention is therefore the supply of gaseous fuel for Decouple the premix operation mechanically from the swirl generator.
  • one Fuel line with a variety of gas holes in the swirl generator too integrate the swirl generator with a series of openings, and Fuel lines for gas premixing are called pipelines executed through those openings into the interior of the swirl generator protrude into it, and there the swirled flow of combustion air supply gaseous fuel.
  • Preferred is per tangential inlet slot the swirl generator arranged at least one gas supply pipe.
  • the open ones The ends of the gas lines are advantageously designed as nozzles. The one with high Gas escaping at a speed prevents fuel gas from flowing back through the openings of the swirl generator.
  • the front end facing the combustion chamber with a heat shield the hot combustion gases and the heat radiation in the combustion chamber protected, and it will also be a good one in this area Relative movement of components ensured that strong in operation are exposed to different temperatures, or their materials are strong have different coefficients of thermal expansion.
  • the Front part of the burner constructed in two parts, from one Support structure on which the swirl generator or one of the swirl generator downstream mixing tube is arranged, and a heat shield. Due to the heat protection shield, the support structure is excessive Heat input is protected and the temperature of the support structure is in operation comparable to that of the components attached to it. Can continue here materials with compatible coefficients of thermal expansion are used become.
  • the swirl generator or a mixing tube can be firmly attached to the Support structure can be arranged without thermal Differential strains stresses are induced in the component.
  • the heat shield is advantageously attached to the support structure that relative displacements of the support structure and the heat shield in the Framework of the expected thermal differential expansions if be hindered as little as possible.
  • Preferred swirl generator geometries result in connection with the invention itself from the subclaims.
  • the invention can be implemented at the same time Premix burners with or without the swirl generator downstream Mixing section.
  • a first preferred embodiment of an inventive Premix burner can be found in Fig. 1. It is essentially around the premix burner known from EP 0 321 809, whose Swirl generator made of nested conical half-bodies 101, 102 consists. The burner is shown partially cut. The partial body 101, 102 enclose a cavity 14, the cross section of which is axial Extended direction of the burner to the combustion chamber 22. A gaseous one Oxidation medium - generally air or another oxygen-containing Gas - 15 flows through tangential slots 19 which extend in the axial direction of the Insert the burner into this cavity. A forms in the cavity 14 Swirl flow out.
  • the swirl flow within the Cavity 14 admixed at least one fuel.
  • the partial bodies 101, 102 of the swirl generator are provided with openings 31. By these openings are passed through pipes 32.
  • Fig. 2 the same burner is shown without a section. For the better The liquid fuel supply is not shown for clarity. In Fig. 2 can be clearly seen how a hammer supply pipe 32 from the outside through the Opening 31 of the swirl generator body 101 is passed.
  • the external bracket of the gas supply pipe 32 without attachment to the Components of the swirl generator, has when using the burner appropriate thermal conditions significant advantages.
  • the Combustion air 15 reaches temperatures of several 100 ° C. 500 ° C from today's perspective, more on the conservative side, while in connection with higher pressure ratios of the working processes of gas turbines and external ones Combustion air preheating temperatures around 700 ° C can be discussed.
  • a possible preheating temperature of the gaseous fuels is up for example 150 ° C or 200 ° C limited.
  • the swirl generator partial bodies thus have and the gas supply pipes 32 are very different in operation Temperatures and thermal expansions. If a gas supply is now firmly connected to a swirl generator part, in the Operation strong due to disabled thermal expansion Thermal stresses that are at least the life of the burner shorten.
  • FIG. 1 as in FIG. 2 it can be seen that the combustion chamber 22 facing Front part of the burner is constructed in two parts.
  • the swirl generator is on a support structure 42 held, while a heat shield 41 without direct large-area contact with the support structure 42 before this protects direct contact with hot gas within the combustion chamber 22.
  • the Support structure for your part is provided with a number of holes 11, through which a cooling medium 18, preferably the oxidation medium, into one formed as a cooling channel space between the support structure and the heat shield flows.
  • the support structure thus also serves as Perforated plate for an impingement cooling of the heat shield, and is by itself the coolant 18 flowing through is cooled.
  • the cooling duct is in turn through a circumferential web 411 in the circumferential direction of the burner in radial direction divided, both on the heat shield and on the Support structure can be arranged. Through this subdivision harmful radial flows, due to which hot gases enter the cooling channel can penetrate avoided.
  • the heat protection shield is attached to the by means of bolts Carrier structure attached, which is not shown in the illustration Fig. 1 and Fig. 2 are.
  • the relatively soft attachment using a few bolts ensures one at least partial compensation of different thermal expansions, which is why they do not lead to pronounced mechanical stresses.
  • the support structure on which the swirl generator is mounted is in front excessive heat input protected. This makes it different Temperature is only marginally different from that of the swirl generator part, which is why also at the junction between the swirl generator and the Support structure stress increases due to different thermal expansion can be avoided.
  • the burner shown in perspective in FIGS. 1 and 2 is in one in FIG Longitudinal section shown.
  • the configuration is particularly important in this representation the front of the burner is clearly visible.
  • the swirl generator is firmly on the Carrier structure 42 mounted.
  • Heat shield 41 mounted between the support structure and the Heat protection shield has a circumferential web 411. The bolt connection can be made so soft that a relative shift only slightly hindered between the support structure and the heat protection shield becomes.
  • the premix burner according to the invention can of course also be used without the heat protection shield can be realized.
  • the carrier structure is not directly on the Fixed combustion chamber wall, but this is by means of tubes or rods 33 also attached to the combustion chamber wall so that relative movements are only slightly hampered here due to thermal expansion.
  • holders are designed as tubes, which extended at the front of the support structure towards the combustion chamber and through the heat shield is passed through.
  • These tubes 33 can for Supply of a gaseous fuel 16 for the so-called pilot operation be used. If the burner air ratio is very high, the amount is sufficient of a gaseous fuel no longer, um, when supplied via the Premix gas supply 32 to ensure a stable premix flame. In Such an operating state is the amount of gas as a so-called pilot gas 16 supplied via lines 33, and then burns in a diffusion flame. On the one hand, this generates significantly more nitrogen oxides, but it is at high levels Burner air ratios far more stable than a premix flame.
  • Fig. 4 shows a burner according to the invention with an alternative, but completely equivalent design of the swirl generator.
  • the swirl generator 100 namely not conical but cylindrical.
  • the extension the flow cross section of the burner cavity 14 is in this type achieved by creating a conical inside the burner Displacement body 8 is located, which tapers in the axial flow direction.
  • there is also one expanding swirl generator can be combined with a displacement body. In extreme cases, a tapering in the axial flow direction could even occur Swirl generators are used, in which an even more tapered Displacement body is used: Enlarged with the appropriate design the cross section of the cavity 14 in the swirl generator yet.
  • a liquid fuel nozzle 3 can be arranged in this displacement body be arranged, the arrangement shown here directly on the Cone tip is by no means mandatory.
  • Embodiments is a gaseous fuel 17 for the Premix operation here also via lines 32 into the swirled combustion air 15 introduced which lines have no rigid connection with the Have swirl generator 100.
  • the tangential entry slot 19 is in this Example does not continue immediately to the mouth of the burner; it can are said to be downstream to the burner mouth connects a mixing section to the swirl generator. This point is below discussed in more detail.
  • the design also bursts on the burner with cylindrical swirl generator premixed swirl flow at sudden cross-section transition from Burner interior to the combustion chamber 22, and thus forms the backflow zone 6 which ultimately stabilizes a flame.
  • the axial course of the swirl body contour in Combination with an inner displacement body in one Burner according to the invention can be varied within wide limits.
  • the displacement body can also have a number of different contours Have direction of the burner longitudinal axis without the invention in your To influence beings. It is crucial that in the interaction of the Swirl generator and the displacement body which flowed through axially Cross section of the interior of the swirl generator increases.
  • the structure of the swirl generator in cross section can be wide Certain conditions, for example fluid dynamic, reaction kinetic or manufacturing requirements become.
  • Figures 5 to 8 give a small insight into the multitude possible geometries.
  • the swirl generator consists of two in Cross-section of semicircular partial bodies 101, 102, each with an inlet guide section.
  • the central axes 101a and 102a of the two partial bodies are different from one another, as a result of which the tangential inlet openings 19 arise.
  • the partial body can of course also instead of semicircular be spiral or elliptical, or even oval, by which choice the Fine structure of the swirl flow in the swirl generator cavity is influenced.
  • the swirl generator can also consist of more than two against each other offset partial bodies exist, as shown in Fig. 6. 7 is a Swirl generator shown in cross section, consisting of four aerodynamic Bucket profiles 101, 102, 103, 104, which are arranged so that tangential inlet openings 19 also arise.
  • a swirl generator 100 a mixing section 220 for an improved Mixing of fuel and combustion air in the axial direction of flow downstream of the burner.
  • the swirl generator is a conical swirl generator, consisting of four swirl generator parts shown, of which in selected section two partial bodies 101 and 102 completely and the partial body 103 are partially visible. Again each sub-body contains one Implementation 31 for a premix gas line 32, through which a gaseous Fuel 17 for the gas premix operation of the burner can be supplied.
  • the total of four premix gas lines are shown in the illustration only two visible, namely those through the partial bodies 101 and 102 are passed through. Again, these lines are light at the end designed nozzle-shaped.
  • a backflow of fuel through the Feed-through openings 31 is via a central fuel nozzle 3 Burner can still be operated with liquid fuel.
  • Downstream of the swirl generator is followed by a transition piece 200, which is even larger in FIG. 10 is shown.
  • the wall geometry is on the inner wall of the transition piece designed in such a way that the swirl flow 50 formed in the swirl generator is possible is transferred without loss into a mixing tube 20. Therefore, in the Transition piece 200 also has a number of transfer channels 201 incorporated which is the flow coming from each tangential entry slot 19 flows into the burner interior 14, avoiding Discontinuities in the wall contour from the swirl generator leads to the mixing tube.
  • the Transition piece is installed in a mounting ring 10, which is the swirl generator 100, the transition piece 200 and the mixing tube 20 carries.
  • the mixing tube itself are tangential wall bores 21 through which an amount of air 151 flows into the mixing tube. This additional air prevents that there is an ignitable mixture in the flow boundary layer close to the wall is in which due to the locally low flow velocity A flame could re-ignite into the mixing tube.
  • the Mixing tube opens with a small transition radius and a tear-off edge 212 into the combustion chamber 22. Radially outside the tear-off edge is one circumferential groove incorporated in the front of the burner. Based on these A special configuration forms a detachment bubble 6 with a comparatively large radial, but a very small axial extent.
  • the front part of the burner shown as an example is as above discussed in detail, provided with a heat shield.

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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)

Claims (22)

  1. Brûleur à prémélange, lequel présente une direction d'écoulement axiale ainsi qu'une extrémité amont et une extrémité aval, contenant un générateur de tourbillons (100) pour entraíner en rotation un milieu d'oxydation gazeux (15) et des moyens pour l'injection d'au moins un combustible (12, 17) dans l'écoulement tourbillonnaire ainsi produit, le milieu d'oxydation entrant à travers le générateur de tourbillons dans le brûleur à prémélange, et le générateur de tourbillons présentant également une direction d'écoulement axiale, lequel générateur de tourbillons inclut un espace creux (14) et lequel générateur de tourbillons présente au moins une fente tangentielle (19) s'étendant dans la direction axiale, à travers laquelle le milieu d'oxydation entre dans l'espace creux dans la direction tangentielle, lequel espace creux présente une section transversale d'écoulement dont la surface en section transversale augmente vers l'extrémité aval du générateur de tourbillons au moins par portions, et lequel brûleur à prémélange présente, à son extrémité aval, un saut de section transversale, caractérisé en ce que le générateur de tourbillons (100), respectivement des corps partiels (101, 102, 103, 104) du générateur de tourbillons présentent des ouvertures et en ce que l'on prévoit, comme moyens d'injecter le combustible gazeux, des tubes (32) qui pénètrent à travers les ouvertures (31) dans l'espace creux (14) du générateur de tourbillons et qui sont désaccouplés mécaniquement du générateur de tourbillons.
  2. Brûleur à prémélange selon la revendication 1, caractérisé en ce que la direction d'écoulement axiale du générateur de tourbillons est identique à la direction d'écoulement axiale du brûleur à prémélange.
  3. Brûleur à prémélange selon la revendication 1, caractérisé en ce que le générateur de tourbillons se compose d'un corps creux monolithique dans lequel est incorporée au moins une fente tangentielle (19) s'étendant dans la direction axiale du générateur de tourbillons.
  4. Brûleur à prémélange selon la revendication 1, caractérisé en ce que le générateur de tourbillons se compose d'une pluralité de corps partiels (101, 102, 103, 104) dont les axes longitudinaux (101a, 102a, 103a, 104a) sont disposés de manière décalée les uns par rapport aux autres, de telle sorte qu'entre deux corps partiels respectifs soit réalisée une fente tangentielle (19) s'étendant dans la direction de l'axe longitudinal du brûleur.
  5. Brûleur à prémélange selon la revendication 1, caractérisé en ce que le générateur de tourbillons présente une forme essentiellement cylindrique.
  6. Brûleur à prémélange selon la revendication 1, caractérisé en ce que le générateur de tourbillons présente une conicité telle que le diamètre du générateur de tourbillons s'élargisse progressivement dans sa direction d'écoulement axiale.
  7. Brûleur à prémélange selon la revendication 1, caractérisé en ce qu'un corps de déplacement (8) se rétrécissant au moins par portions en direction de l'extrémité aval du brûleur est incorporé dans l'espace creux (14).
  8. Brûleur à prémélange selon la revendication 1, caractérisé en ce que l'on dispose à proximité de l'axe du brûleur des moyens (3) pour introduire un combustible liquide (12) dans l'écoulement tourbillonnaire.
  9. Brûleur à prémélange selon la revendication 1, caractérisé en ce que l'on associe à chaque fente tangentielle (19) au moins un moyen pour l'injection d'un combustible gazeux pour faire fonctionner le brûleur avec une flamme de gaz prémélangée.
  10. Brûleur à prémélange selon la revendication 9, caractérisé en ce que les tubes présentent une forme de buse à leur extrémité.
  11. Brûleur à prémélange selon la revendication 1, caractérisé en ce que le brûleur à prémélange est fixé à son extrémité aval sur une structure de support (42), au moyen de laquelle structure de support le brûleur peut être monté sur une paroi de la chambre de combustion, en ce qu'en aval de la structure de support est disposé un écran thermique (41), lequel écran thermique est fixé sur la structure de support de telle sorte qu'entre la structure de support et l'écran thermique n'existe aucun contact direct, et qu'une distance existe entre la structure de support et l'écran thermique, et en ce que des moyens de fixation (43), au moyen desquels l'écran de protection thermique est fixé à la structure de support, sont choisis de telle sorte qu'une mobilité relative entre l'écran de protection thermique et la structure de support soit garantie.
  12. Brûleur à prémélange selon la revendication 11, caractérisé en ce que l'écran thermique est refroidi.
  13. Brûleur à prémélange selon la revendication 12, caractérisé en ce que la structure de support est pourvue d'une pluralité d'ouvertures (11) à travers lesquelles s'écoule, en fonctionnement, un réfrigérant (18), lequel réfrigérant effectue à la fois un refroidissement par convection de la structure de support ainsi qu'un refroidissement par impact de l'écran thermique.
  14. Brûleur à prémélange selon la revendication 12, caractérisé en ce que le réfrigérant est le même milieu que le milieu d'oxydation.
  15. Brûleur à prémélange selon la revendication 12, caractérisé en ce que la distance entre l'écran thermique et la structure de support est un canal de refroidissement.
  16. Brûleur à prémélange selon la revendication 15, caractérisé en ce que le canal de refroidissement est divisé par une nervure périphérique (411).
  17. Brûleur à prémélange selon la revendication 1, caractérisé en ce que l'on prévoit une section de mélange (220) en aval du générateur de tourbillons (100).
  18. Brûleur à prémélange selon la revendication 17, caractérisé en ce que la section de mélange est réalisée sous la forme d'un élément de mélange de forme tubulaire (20) dont l'axe longitudinal est essentiellement identique à l'axe du brûleur.
  19. Brûleur à prémélange selon la revendication 17, caractérisé en ce qu'il présente, dans la direction d'écoulement axiale du brûleur entre le générateur de tourbillons (100) et la section de mélange (220), des canaux de transition (201) s'étendant dans la direction d'écoulement pour le transfert de l'écoulement tourbillonnaire (50) formé dans le générateur de tourbillons dans la section de mélange.
  20. Brûleur à prémélange selon la revendication 19, caractérisé en ce que le nombre des canaux de transition (201) correspond au nombre des fentes d'entrée tangentielles (19).
  21. Brûleur à prémélange selon la revendication 11, caractérisé en ce que la structure de support est fixée sur la paroi de la chambre de combustion par des tubes ou des barres (33) qui s'étendent depuis la structure de support à l'encontre de la direction d'écoulement axiale du brûleur.
  22. Brûleur à prémélange selon la revendication 21, caractérisé en ce que les tubes (33) sont guidés à travers l'écran thermique et en ce que ces tubes sont également des conduites d'amenée pour un combustible gazeux (16) pour le fonctionnement avec une flamme de diffusion de gaz.
EP99114377A 1999-07-22 1999-07-22 Brûleur à prémélange Expired - Lifetime EP1070915B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59909531T DE59909531D1 (de) 1999-07-22 1999-07-22 Vormischbrenner
EP99114377A EP1070915B1 (fr) 1999-07-22 1999-07-22 Brûleur à prémélange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99114377A EP1070915B1 (fr) 1999-07-22 1999-07-22 Brûleur à prémélange

Publications (2)

Publication Number Publication Date
EP1070915A1 EP1070915A1 (fr) 2001-01-24
EP1070915B1 true EP1070915B1 (fr) 2004-05-19

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DE (1) DE59909531D1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1263983C (zh) 2001-10-19 2006-07-12 阿尔斯通技术有限公司 用于合成气体的燃烧器
ITMI20012781A1 (it) * 2001-12-21 2003-06-21 Nuovo Pignone Spa Assieme migliorato di camera di pre miscelamento e di camera di combustione, a basse emissioni inquinanti per turbine a gas con combustibile
EP1504222B1 (fr) 2002-05-16 2007-07-11 Alstom Technology Ltd Bruleur a premelange
JP4913746B2 (ja) 2004-11-30 2012-04-11 アルストム テクノロジー リミテッド 予混合バーナー内の水素を燃焼する方法及び装置
ATE479054T1 (de) 2005-03-09 2010-09-15 Alstom Technology Ltd Vormischbrenner zum erzeugen eines zündfähigen brennstoff-luftgemisches
JP2008534896A (ja) 2005-03-23 2008-08-28 アルストム テクノロジー リミテッド 前混合バーナにおいて水素を燃焼する方法と装置
EP2058590B1 (fr) 2007-11-09 2016-03-23 Alstom Technology Ltd Procédé de fonctionnement d'un brûleur
EP2220433B1 (fr) 2007-11-27 2013-09-04 Alstom Technology Ltd Procédé et dispositif pour la combustion d'hydrogène dans un brûleur à prémélange
CH701905A1 (de) 2009-09-17 2011-03-31 Alstom Technology Ltd Verfahren zum Verbrennen wasserstoffreicher, gasförmiger Brennstoffe in einem Brenner sowie Brenner zur Durchführung des Verfahrens.
US10837643B2 (en) 2018-08-06 2020-11-17 General Electric Company Mixer assembly for a combustor

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0321809A1 (fr) * 1987-12-21 1989-06-28 BBC Brown Boveri AG Procédé pour la combustion de combustible liquide dans un brûleur

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