EP2090825A1 - Burner element and burner with corrosion-resistant insert - Google Patents

Burner element and burner with corrosion-resistant insert Download PDF

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Publication number
EP2090825A1
EP2090825A1 EP20080002769 EP08002769A EP2090825A1 EP 2090825 A1 EP2090825 A1 EP 2090825A1 EP 20080002769 EP20080002769 EP 20080002769 EP 08002769 A EP08002769 A EP 08002769A EP 2090825 A1 EP2090825 A1 EP 2090825A1
Authority
EP
European Patent Office
Prior art keywords
burner
opening
insert
fuel
burner element
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.)
Withdrawn
Application number
EP20080002769
Other languages
German (de)
French (fr)
Inventor
Andreas Böttcher
Thomas Kunadt
Elmar Pfeiffer
Ulrich Wörz
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to EP20080002769 priority Critical patent/EP2090825A1/en
Priority to US12/867,513 priority patent/US9140449B2/en
Priority to CN2009801132503A priority patent/CN102007342B/en
Priority to EP20090710560 priority patent/EP2245369B1/en
Priority to RU2010137905/06A priority patent/RU2488039C2/en
Priority to PCT/EP2009/051432 priority patent/WO2009101043A1/en
Publication of EP2090825A1 publication Critical patent/EP2090825A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/02—Casings; Linings; Walls characterised by the shape of the bricks or blocks used
    • F23M5/025—Casings; Linings; Walls characterised by the shape of the bricks or blocks used specially adapted for burner openings
    • 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
    • F23R3/283—Attaching or cooling of fuel injecting means including supports for fuel injectors, stems, or lances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/007—Preventing corrosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/05—Fuel-injection apparatus having means for preventing corrosion
    • 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 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/02—Structural details of mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2213/00—Burner manufacture specifications
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/00018—Means for protecting parts of the burner, e.g. ceramic lining outside of the flame tube

Definitions

  • the present invention relates to a burner element and a burner equipped with a corrosion resistant insert.
  • Certain parts of a burner typically come into contact with fuel inside them. Due to the chemical reaction of sulfur compounds contained in the fuel (H 2 S) with the base material of the burner iron sulfide deposits can form inside the burner.
  • the base material of the burner is typically steel, for example 16Mo3 grade steel.
  • the resulting inside the burner iron sulfide deposits can flake off and partially block the holes through which the fuel is injected into a combustion chamber lead.
  • the holes through which the fuel is injected into the combustion chamber typically have a diameter of 1.5mm. Clogging of these holes results in uneven combustion, which in particular significantly reduces the emission levels of the affected burner.
  • the availability of the affected burner or the associated combustion chamber is affected in this case.
  • the first object is achieved by a burner element according to claim 1.
  • the second object is achieved by a burner according to claim 11.
  • the dependent claims contain further, advantageous embodiments of the invention.
  • the burner element according to the invention comprises a surface which potentially comes into contact with a fuel.
  • the burner element further comprises a base material and a corrosion-resistant material, wherein the surface potentially coming into contact with a fuel is formed from the corrosion-resistant material. This prevents the formation of deposits, particularly iron sulfide deposits, on the surface potentially in contact with a fuel. It is thus possible to comply with the emission limit values. In addition, the cost of cleaning or installation of a new burner can be saved.
  • the base material may be, for example, steel, in particular 16Mo3 steel.
  • the corrosion-resistant material may be, for example, the material IN617.
  • the burner element according to the invention can be configured, for example, as a burner support flange.
  • the burner support flange according to the invention may comprise a base body comprising the base material and an insert comprising the corrosion-resistant material.
  • the insert may comprise an outer surface and at least one opening.
  • the main body may comprise an opening with an inner surface.
  • the insert may be arranged in the opening of the base body such that the inner surface of the opening of the base body is connected to the outer surface of the insert in a conclusive manner.
  • the insert can be welded, for example, in the body.
  • the opening of the main body in the main body may be arranged eccentrically with respect to a central axis of the main body.
  • the opening of the insert in the insert may be arranged eccentrically with respect to a central axis of the insert.
  • the opening of the base body and / or the opening of the insert can / have, for example, a circular cross-section.
  • the fuel used may flow through the opening of the insert as part of the use of the burner support flange according to the invention. Since the insert is formed of corrosion resistant material, the fuel does not come into contact with the base material. This prevents the formation of deposits.
  • the burner according to the invention comprises a previously described burner element according to the invention.
  • the burner may be, for example, a pilot burner.
  • the pilot burner may, for example, comprise one millimeter diameter nozzle holes.
  • the burner according to the invention has the same advantages as the described burner element according to the invention.
  • the present invention makes it possible to inexpensively and effectively prevent the formation of deposits, in particular of iron sulfide deposits, within a burner.
  • an improvement of the emission values of the burner is achieved by the present invention.
  • FIG. 1 shows the dependence of the CO emission values of a conventional burner as a function of the operating time.
  • On the x-axis of the in the FIG. 1 is shown diagram plotted the respective date of the CO emission measurement.
  • the measured CO emission values in milligrams per cubic meter are plotted on the y-axis.
  • the graph shows the CO emissions for the burner concerned over time with four time periods I, II, III, IV. After a longer period I with extremely low emission levels, these increased continuously in the second section II, but were predominantly below 10mg / m 3 . In the subsequent period III, the CO emission levels increased more than in Section II and were mainly between 10mg / m 3 and 30mg / m 3 . In the fourth period IV CO emissions were then measured predominantly between 40mg / m 3 and 80mg / m 3 .
  • the in the FIG. 1 The measurement shown shows that increasing blockage of the burner due to formation of iron sulfide deposits is accompanied by a significant deterioration in CO emission levels.
  • the burner used by way of example is a burner of a gas turbine.
  • FIG. 2 schematically shows a section through a burner 1 according to the invention.
  • the burner 1 is connected to a combustion chamber 3.
  • the center axis of the burner 1 is indicated by the reference numeral 2.
  • the burner 1 comprises a housing 4. Within the housing 4, a fuel oil return line 5 is arranged along the central axis 2. To the fuel oil return line 5 around a fuel oil supply line 6 is arranged concentrically, which also extends along the central axis 2. It may also be a plurality of fuel oil supply lines 6, which are arranged concentrically around the fuel oil return line 5. The fuel oil supply line 6 is at the combustion chamber. 3 opposite side connected to a connecting pipe 7, which can be connected to a fuel oil supply. The flow direction of the fuel oil is indicated by the arrows 8 and 9. The fuel oil can first flow through the connecting pipe 7 into the fuel oil supply line 6. Through this fuel oil supply line 6, the fuel oil can flow parallel to the central axis 2 to the combustion chamber 3 and are injected into the combustion chamber 3. Excess fuel oil can flow parallel to the central axis 2 through the fuel oil return line 5 of the combustion chamber 3 in the direction of the arrow 9 away.
  • one or more water lines 17 are arranged.
  • the water pipe or the water pipes 17 are connected to the combustion chamber 3 side facing away from the burner 1 with a water inlet 16.
  • Concentric around the fuel oil return line 5, the fuel oil supply line 6 and the water lines 17 around heating gas diffusion lines 10, 110 are arranged.
  • the heating gas can be forwarded in the heating gas diffusion lines 10, 110 to fuel nozzles 11.
  • the fuel nozzles 11 are also arranged concentrically around the central axis 2 and allow injection of the fuel into the combustion chamber third
  • a heating gas premixing feed line 12 is arranged radially outside the heating gas diffusion lines 10, 110, through which heating gas can be conducted to further fuel nozzles 13 via a ring manifold 18 arranged annularly about the central axis 2.
  • the fuel can be injected into the combustion chamber 3.
  • the direction of flow of the fuel-air mixture in the combustion chamber 3 is indicated by arrows 14.
  • the reference numeral 30 indicates the position of the burner carrier flange. In particular, the distribution of the heating gas to the heating gas diffusion lines 110 takes place in the burner support flange 30.
  • the heating gas diffusion lines 110 are configured as pipes leading to the combustion chamber 3.
  • the inner surfaces of the Brenneriziflansches 30 are in direct contact with the flowing through them fuel gas. Due to the chemical reaction of sulfur compounds contained in the heating gas with the base material of these components, iron sulfide deposits can form on the inner surfaces of the burner support flange 30. These deposits can flake off and lead to a partial blockage of the fuel nozzles 11, 13.
  • the FIG. 3 schematically shows a section through a conventional burner support flange 30 in partial perspective view.
  • the burner support flange 30 may consist in particular of 16Mo3 grade steel.
  • the example in the FIG. 3 The conventional burner support flange 30 shown has a through hole 31 through which the heating oil return pipe 5, the heating oil supply pipe 6, the water pipes 17 and the heating gas diffusion pipe 10 pass.
  • the burner support flange 30 also includes further through openings and screw connections, which in the FIG. 3 but not shown.
  • the opening 31 has a circular cross-section. Furthermore, the opening 31 is arranged eccentrically with respect to a central axis 35 of the burner support flange 30.
  • the inner surface 32 of the opening 31 comprises a groove 33 extending along the circumference of the opening 31, through which heating gas is led to the heating gas diffusion lines 110.
  • the burner carrier flax 30 further comprises a flow channel 36 which is perpendicular to the central axis 35 and fluidly connected to the groove 33.
  • the flow channel 36 is also connected to an opening 34, which is arranged radially outside the opening 31 with respect to the central axis 35. Through the opening 34, heating gas can be passed into the groove 33.
  • the opening 34 has a central axis 37, which runs parallel to the central axis 35 of the burner support flange 30.
  • the opening 34 has a smaller diameter than the opening 31.
  • the aperture 31 further includes an interior surface 32, which typically contacts a fuel. This may in particular be the surface of the groove 33. On this inner surface 32, deposits, for example iron sulfide deposits, may form as a result of the contact with the fuel.
  • FIG. 4 schematically shows a burner support flange 20 according to the invention in a perspective view.
  • the burner support flange 20 according to the invention comprises a main body 21 and an insert 22.
  • the main body is made of 16Mo3 steel, for example.
  • the insert 22 is made of a corrosion resistant material, for example IN617.
  • the main body 21 has a circular cross section with a central axis 29. It also comprises a through opening 26 which is arranged eccentrically with respect to the central axis 29.
  • the opening 26 has a teardrop-shaped cross-section.
  • the inner surface of the opening 26 is indicated by the reference numeral 24.
  • the insert 22 includes an outer surface 25 that is configured to allow the insert 22 to be inserted into the opening 26 of the body 21 such that the inner surface 24 of the body 21 is in a positive engagement with the outer surface 25 of the insert 22 ,
  • the insert 22 also includes a continuous opening 23, which has a circular cross-section and is arranged eccentrically with respect to the central axis 29.
  • the interior, potentially fuel-contacting surface of the opening 23 is indicated by the reference numeral 28.
  • the insert 22 also includes an opening 27 having the same characteristics as the opening 34 of the associated with the FIG. 3 has described conventional Brenner support flange 30.
  • the in the FIG. 4 shown variant is characterized by the fact that in her only relatively little corrosion-resistant material is required on the one hand, but on the other hand, the production due to the asymmetrical, drop-shaped cross-section of the opening 26 and the outer surface 25 of the insert 22 is expensive.
  • FIG. 5 shows a further embodiment of a burner support flange 40 according to the invention in a perspective view.
  • the burner support flange 40 according to the invention is distinguished in contrast to that in the FIG. 4 shown Brennererieriflansch 20 characterized in that the opening 26 of the base 21 and the insert 22 have a circular cross-section.
  • the insert 22 comprises a central axis 41, which runs parallel to the central axis 29 of the burner support flange 40.
  • the insert 22 is in turn arranged eccentrically with respect to the central axis 29 of the burner support flange 40.
  • the rest in the FIG. 5 labeled elements correspond to those associated with the FIG. 4 described elements.
  • FIG. 6 A further embodiment of a burner flange 50 according to the invention is in the FIG. 6 schematically shown in perspective view.
  • Brennerhavingflansch 40 is characterized in the FIG. 6 shown Brennererhavingflansch 50 characterized in that the opening 23 of the insert 22 is arranged concentrically with respect to the central axis 41 of the insert 22.
  • the burner support flange 50 has the same features and properties as the burner support flange 40 described in US Pat FIG. 5 is shown on.
  • FIGS. 5 and 6 Variants shown are characterized in comparison to in the FIG. 4 shown variant in that although more corrosion-resistant, expensive material is needed, but the production due to the circular cross-sections of the opening 26 of the body 21 and the outer surface 25 of the insert 22 is simpler and less expensive.
  • FIG. 6 The embodiment shown is the preferred embodiment.
  • the problem of the formation of deposits can be repaired cost.
  • the endangered part of the burner support flange 20, 40, 50 which potentially comes into contact with a fuel, is made of a corrosion-resistant material, for example IN617, and the remaining part, ie the base body 21, of a cost-effective material, for example steel the variety 16Mo3, manufactured.

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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)
  • Nozzles For Spraying Of Liquid Fuel (AREA)

Abstract

The element (50) has a surface (28) potentially coming into contact with a fuel and made of corrosion-resistant material such as nickel-base alloy. A base body (21) comprises a base material such as molybdenum alloy type steel. An insert (22) comprises an outer surface (25) and an opening (23), and is arranged in an opening (26) of the body such that an inner surface (24) of the opening (26) is coherently connected with the outer surface of the insert, where the openings comprise circular cross section. The opening (26) is eccentrically arranged with respect to a center axis of the body.

Description

Die vorliegende Erfindung betrifft ein Brennerelement und einen Brenner, die mit einem korrosionsbeständigen Einsatz ausgestattet sind.The present invention relates to a burner element and a burner equipped with a corrosion resistant insert.

Bestimmte Teile eines Brenners kommen in ihrem Inneren typischerweise mit Brennstoff in Kontakt. Durch die chemische Reaktion von in dem Brennstoff enthaltenen Schwefelverbindungen (H2S) mit dem Grundwerkstoff des Brenners können sich im Inneren des Brenners Eisensulfid-Beläge bilden. Bei dem Grundwerkstoff des Brenners handelt es sich typischerweise um Stahl, beispielsweise um Stahl der Sorte 16Mo3. Die im Inneren des Brenners entstehenden Eisensulfid-Beläge können abplatzen und teilweise zur Verstopfung der Bohrungen, durch die der Brennstoff in eine Brennkammer eingedüst wird, führen. Die Bohrungen, durch die der Brennstoff in die Brennkammer eingedüst wird, haben typischerweise einen Durchmesser von 1,5mm. Eine Verstopfung dieser Bohrungen hat eine ungleichmäßige Verbrennung zur Folge, wodurch sich insbesondere die Emissionswerte des betroffenen Brenners erheblich verschlechtern. Die Verfügbarkeit des betroffenen Brenners beziehungsweise der zugehörigen Brennkammer ist in diesem Fall beeinträchtigt.Certain parts of a burner typically come into contact with fuel inside them. Due to the chemical reaction of sulfur compounds contained in the fuel (H 2 S) with the base material of the burner iron sulfide deposits can form inside the burner. The base material of the burner is typically steel, for example 16Mo3 grade steel. The resulting inside the burner iron sulfide deposits can flake off and partially block the holes through which the fuel is injected into a combustion chamber lead. The holes through which the fuel is injected into the combustion chamber typically have a diameter of 1.5mm. Clogging of these holes results in uneven combustion, which in particular significantly reduces the emission levels of the affected burner. The availability of the affected burner or the associated combustion chamber is affected in this case.

Das Problem einer möglichen Verstopfung der Bohrungen infolge von abplatzenden Eisensulfid-Belägen wurde bisher entweder durch eine Reinigung des Brenners oder durch den Einbau eines neuen Brenners gelöst. Allerdings kostet eine Reinigung viel Zeit. In solchen Fällen muss daher in der Regel ein kompletter Satz neuer Brenners eingebaut werden, was sehr teuer ist. Zwar treten die beschriebenen Schwierigkeiten nur an Maschinen auf, die mit Vorwärmung betrieben werden, allerdings werden diese Maschinen zunehmend angewendet. Es ist daher mit hohen Zusatzkosten infolge der möglichen Bildung von Eisensulfid-Belägen zu rechnen.The problem of a possible blockage of the holes due to chipping iron sulfide coatings has been solved either by cleaning the burner or by the installation of a new burner. However, cleaning costs a lot of time. In such cases, therefore, usually a complete set of new burner must be installed, which is very expensive. Although the difficulties described occur only on machines that are operated with preheating, but these machines are increasingly being used. It is therefore to be expected with high additional costs due to the possible formation of iron sulfide coatings.

Weiterhin kann durch den Einsatz korrosionsbeständiger Werkstoffe, beispielsweise des Materials IN617, die Bildung von insbesondere Eisensulfid-Belägen verhindert werden. Allerdings sind diese Werkstoffe erheblich teurer als der bisher verwendete Stahl der Sorte 16Mo3.Furthermore, the use of corrosion-resistant materials, such as the material IN617, the formation of particular iron sulfide coatings can be prevented. However, these materials are considerably more expensive than the previously used 16Mo3 steel.

Es ist daher eine Aufgabe der vorliegenden Erfindung, ein vorteilhaftes Brennerelement zur Verfügung zu stellen. Es ist eine weitere Aufgabe der vorliegenden Erfindung, einen vorteilhaften Brenner zur Verfügung zu stellen.It is therefore an object of the present invention to provide an advantageous burner element. It is another object of the present invention to provide an advantageous burner.

Die erste Aufgabe wird durch ein Brennerelement nach Anspruch 1 gelöst. Die zweite Aufgabe wird durch einen Brenner nach Anspruch 11 gelöst. Die abhängigen Ansprüche beinhalten weitere, vorteilhafte Ausgestaltungen der Erfindung.The first object is achieved by a burner element according to claim 1. The second object is achieved by a burner according to claim 11. The dependent claims contain further, advantageous embodiments of the invention.

Das erfindungsgemäße Brennerelement umfasst eine Oberfläche, die potentiell mit einem Brennstoff in Kontakt kommt. Das Brennerelement umfasst weiterhin einen Grundwerkstoff und einen korrosionsbeständigen Werkstoff, wobei die potentiell mit einem Brennstoff in Kontakt kommende Oberfläche aus dem korrosionsbeständigen Werkstoff gebildet wird. Dadurch wird die Bildung von Belägen, insbesondere von Eisensulfid-Belägen, auf der potentiell mit einem Brennstoff in Kontakt kommenden Oberfläche verhindert. Es wird so die Einhaltung der Emissionsgrenzwerte ermöglicht. Zudem können die Kosten für eine Reinigung beziehungsweise einen Einbau eines neuen Brenners eingespart werden.The burner element according to the invention comprises a surface which potentially comes into contact with a fuel. The burner element further comprises a base material and a corrosion-resistant material, wherein the surface potentially coming into contact with a fuel is formed from the corrosion-resistant material. This prevents the formation of deposits, particularly iron sulfide deposits, on the surface potentially in contact with a fuel. It is thus possible to comply with the emission limit values. In addition, the cost of cleaning or installation of a new burner can be saved.

Bei dem Grundwerkstoff kann es sich beispielsweise um Stahl, insbesondere um Stahl der Sorte 16Mo3 handeln. Bei dem korrosionsbeständigen Werkstoff kann es sich zum Beispiel um das Material IN617 handeln. Indem lediglich die potentiell mit einem Brennstoff in Kontakt kommende Oberfläche aus dem korrosionsbeständigen und teuren Werkstoff IN617 gebildet wird, lassen sich gegenüber einem Brennerelement, welches komplett aus einem korrosionsbeständigen Werkstoff, zum Beispiel IN617, hergestellt ist, erhebliche Materialkosten einsparen.The base material may be, for example, steel, in particular 16Mo3 steel. The corrosion-resistant material may be, for example, the material IN617. By only the potentially coming into contact with a fuel surface of the corrosion-resistant and expensive material IN617 is formed, can be compared to a burner element, which is made entirely of a corrosion-resistant material, for Example IN617, saving considerable material costs.

Das erfindungsgemäße Brennerelement kann beispielsweise als Brennerträgerflansch ausgestaltet sein. Der erfindungsgemäße Brennerträgerflansch kann einen den Grundwerkstoff umfassenden Grundkörper und einen den korrosionsbeständigen Werkstoff umfassenden Einsatz umfassen. Weiterhin kann der Einsatz eine äußere Oberfläche und mindestens eine Öffnung umfassen. Der Grundkörper kann eine Öffnung mit einer inneren Oberfläche umfassen. In diesem Fall kann der Einsatz so in der Öffnung des Grundkörpers angeordnet sein, dass die innere Oberfläche der Öffnung des Grundkörpers mit der äußeren Oberfläche des Einsatzes schlüssig verbunden ist. Der Einsatz kann zum Beispiel in den Grundkörper eingeschweißt sein.The burner element according to the invention can be configured, for example, as a burner support flange. The burner support flange according to the invention may comprise a base body comprising the base material and an insert comprising the corrosion-resistant material. Furthermore, the insert may comprise an outer surface and at least one opening. The main body may comprise an opening with an inner surface. In this case, the insert may be arranged in the opening of the base body such that the inner surface of the opening of the base body is connected to the outer surface of the insert in a conclusive manner. The insert can be welded, for example, in the body.

Weiterhin kann die Öffnung des Grundkörpers in den Grundkörper exzentrisch in Bezug auf eine Mittelachse des Grundkörpers angeordnet sein. Zudem kann die Öffnung des Einsatzes in dem Einsatz exzentrisch in Bezug auf eine Mittelachse des Einsatzes angeordnet sein. Die Öffnung des Grundkörpers und/oder die Öffnung des Einsatzes können/kann zum Beispiel einen kreisförmigen Querschnitt aufweisen.Furthermore, the opening of the main body in the main body may be arranged eccentrically with respect to a central axis of the main body. In addition, the opening of the insert in the insert may be arranged eccentrically with respect to a central axis of the insert. The opening of the base body and / or the opening of the insert can / have, for example, a circular cross-section.

Der verwendete Brennstoff kann im Rahmen der Verwendung des erfindungsgemäßen Brennerträgerflansches durch die Öffnung des Einsatzes strömen. Da der Einsatz aus korrosionsbeständigem Material gebildet wird, kommt der Brennstoff nicht mit dem Grundwerkstoff in Kontakt. Dadurch wird der Bildung von Belägen vorgebeugt.The fuel used may flow through the opening of the insert as part of the use of the burner support flange according to the invention. Since the insert is formed of corrosion resistant material, the fuel does not come into contact with the base material. This prevents the formation of deposits.

Der erfindungsgemäße Brenner umfasst ein zuvor beschriebenes erfindungsgemäßes Brennerelement. Bei dem Brenner kann es sich zum Beispiel um einen Pilotbrenner handeln. Der Pilotbrenner kann zum Beispiel Düsenbohrungen mit einem Durchmesser von einem Millimeter umfassen. Grundsätzlich hat der erfindungsgemäße Brenner dieselben Vorteile wie das beschriebene erfindungsgemäße Brennerelement.The burner according to the invention comprises a previously described burner element according to the invention. The burner may be, for example, a pilot burner. The pilot burner may, for example, comprise one millimeter diameter nozzle holes. In principle, the burner according to the invention has the same advantages as the described burner element according to the invention.

Mithilfe der vorliegenden Erfindung lässt sich die Bildung von Belägen, insbesondere von Eisensulfid-Belägen, innerhalb eines Brenners kostengünstig und effektiv verhindern. Zudem wird durch die vorliegende Erfindung eine Verbesserung der Emissionswerte des Brenners erreicht.The present invention makes it possible to inexpensively and effectively prevent the formation of deposits, in particular of iron sulfide deposits, within a burner. In addition, an improvement of the emission values of the burner is achieved by the present invention.

Weitere Eigenschaften, Merkmale und Vorteile der vorliegenden Erfindung werden im Folgenden anhand eines Ausführungsbeispiels unter Bezugnahme auf die beiliegenden Figuren näher beschrieben.

Fig. 1
zeigt die Anhängigkeit der CO-Emissionswerte eines konventionellen Brenners in Abhängigkeit von der Betriebszeit.
Fig. 2
zeigt schematisch einen Schnitt durch einen im Mischbetrieb betreibbaren Brenner des Typs HR3B.
Fig. 3
zeigt schematisch einen Schnitt durch einen herkömmlichen Brennerträgerflansch in teilweise perspektivischer Ansicht.
Fig. 4
zeigt schematisch einen erfindungsgemäßen Brennerträgerflansch in perspektivischer Ansicht.
Fig. 5
zeigt schematisch einen alternativen erfindungsgemäßen Brennerträgerflansch in perspektivischer Ansicht.
Fig. 6
zeigt schematisch einen weiteren erfindungsgemäßen Brennerträgerflansch in perspektivischer Ansicht.
Further properties, features and advantages of the present invention will be described in more detail below with reference to an embodiment with reference to the accompanying figures.
Fig. 1
shows the dependence of the CO emission values of a conventional burner as a function of the operating time.
Fig. 2
shows schematically a section through a burner operable in the burner type HR3B.
Fig. 3
schematically shows a section through a conventional burner support flange in partial perspective view.
Fig. 4
schematically shows a burner support flange according to the invention in a perspective view.
Fig. 5
schematically shows an alternative burner support according to the invention in perspective view.
Fig. 6
schematically shows another burner support according to the invention in perspective view.

Im Folgenden wird ein Ausführungsbeispiel der vorliegenden Erfindung anhand der Figuren 1 bis 6 näher erläutert. Die Figur 1 zeigt die Abhängigkeit der CO-Emissionswerte eines herkömmlichen Brenners in Abhängigkeit von der Betriebszeit. Auf der x-Achse des in der Figur 1 gezeigten Diagramms ist das jeweilige Datum der CO-Emissionsmessung aufgetragen. Auf der y-Achse sind die jeweils gemessenen CO-Emissionswerte in Milligramm pro Kubikmeter aufgetragen.In the following, an embodiment of the present invention will be described with reference to FIGS FIGS. 1 to 6 explained in more detail. The FIG. 1 shows the dependence of the CO emission values of a conventional burner as a function of the operating time. On the x-axis of the in the FIG. 1 is shown diagram plotted the respective date of the CO emission measurement. The measured CO emission values in milligrams per cubic meter are plotted on the y-axis.

Das Diagramm zeigt für den betroffenen Brenner die CO-Emissionswerte im zeitlichen Verlauf mit vier Zeitabschnitten I, II, III, IV. Nach einer längeren Betriebsabschnitt I mit äußerst geringen Emissionswerten stiegen diese im zweiten Abschnitt II kontinuierlich an, lagen jedoch überwiegend unterhalb von 10mg/m3. Im anschließenden Zeitabschnitt III stiegen die CO-Emissionswerte stärker als im Abschnitt II an und lagen überwiegend zwischen 10mg/m3 und 30mg/m3. Im vierten Zeitabschnitt IV wurden dann CO-Emissionswerte überwiegend zwischen 40mg/m3 und 80mg/m3 gemessen.The graph shows the CO emissions for the burner concerned over time with four time periods I, II, III, IV. After a longer period I with extremely low emission levels, these increased continuously in the second section II, but were predominantly below 10mg / m 3 . In the subsequent period III, the CO emission levels increased more than in Section II and were mainly between 10mg / m 3 and 30mg / m 3 . In the fourth period IV CO emissions were then measured predominantly between 40mg / m 3 and 80mg / m 3 .

Die in der Figur 1 dargestellte Messung zeigt, dass eine zunehmende Verstopfung des Brenners infolge einer Bildung von Eisensulfid-Belägen mit einer erheblichen Verschlechterung der CO-Emissionswerte einhergeht. Bei dem beispielhaft verwendeten Brenner handelt es sich um einen Brenner einer Gasturbine.The in the FIG. 1 The measurement shown shows that increasing blockage of the burner due to formation of iron sulfide deposits is accompanied by a significant deterioration in CO emission levels. The burner used by way of example is a burner of a gas turbine.

Der Aufbau eines Brenners, wie er beispielsweise im Rahmen einer Gasturbine verwendet werden kann, wird im Folgenden anhand der Figur 2 näher erläutert. Die Figur 2 zeigt schematisch einen Schnitt durch einen erfindungsgemäßen Brenner 1. Der Brenner 1 ist an eine Brennkammer 3 angeschlossen. Die Mittelachse des Brenners 1 ist durch die Bezugsziffer 2 gekennzeichnet.The structure of a burner, as it can be used for example in the context of a gas turbine, will be described below with reference to the FIG. 2 explained in more detail. The FIG. 2 schematically shows a section through a burner 1 according to the invention. The burner 1 is connected to a combustion chamber 3. The center axis of the burner 1 is indicated by the reference numeral 2.

Der Brenner 1 umfasst ein Gehäuse 4. Innerhalb des Gehäuses 4 ist entlang der Mittelachse 2 eine Heizölrücklaufleitung 5 angeordnet. Um die Heizölrücklaufleitung 5 herum ist eine Heizölzulaufleitung 6 konzentrisch angeordnet, die ebenfalls entlang der Mittelachse 2 verläuft. Es kann sich dabei auch um mehrere Heizölzulaufleitungen 6 handeln, die konzentrisch um die Heizölrücklaufleitung 5 angeordnet sind. Die Heizölzulaufleitung 6 ist an der der Brennkammer 3 abgewandten Seite mit einem Anschlussrohr 7 verbunden, welches an eine Heizölversorgung angeschlossen werden kann. Die Strömungsrichtung des Heizöls ist durch die Pfeile 8 und 9 angedeutet. Das Heizöl kann zunächst durch das Anschlussrohr 7 in die Heizölzulaufleitung 6 strömen. Durch diese Heizölzulaufleitung 6 kann das Heizöl parallel zur Mittelachse 2 zur Brennkammer 3 hin strömen und in die Brennkammer 3 eingedüst werden. Überflüssiges Heizöl kann parallel zur Mittelachse 2 durch die Heizölrücklaufleitung 5 von der Brennkammer 3 in Richtung des Pfeiles 9 weg strömen.The burner 1 comprises a housing 4. Within the housing 4, a fuel oil return line 5 is arranged along the central axis 2. To the fuel oil return line 5 around a fuel oil supply line 6 is arranged concentrically, which also extends along the central axis 2. It may also be a plurality of fuel oil supply lines 6, which are arranged concentrically around the fuel oil return line 5. The fuel oil supply line 6 is at the combustion chamber. 3 opposite side connected to a connecting pipe 7, which can be connected to a fuel oil supply. The flow direction of the fuel oil is indicated by the arrows 8 and 9. The fuel oil can first flow through the connecting pipe 7 into the fuel oil supply line 6. Through this fuel oil supply line 6, the fuel oil can flow parallel to the central axis 2 to the combustion chamber 3 and are injected into the combustion chamber 3. Excess fuel oil can flow parallel to the central axis 2 through the fuel oil return line 5 of the combustion chamber 3 in the direction of the arrow 9 away.

Radial außerhalb der Heizölrücklaufleitung 5 und der Heizölzulaufleitung 6 in Bezug auf die Mittelachse 2 sind entlang der Mittelachse 2 eine oder mehrere Wasserleitungen 17 angeordnet. Die Wasserleitung beziehungsweise die Wasserleitungen 17 sind an der der Brennkammer 3 abgewandten Seite des Brenners 1 mit einem Wasserzulauf 16 verbunden.Radially outside the fuel oil return line 5 and the fuel oil supply line 6 with respect to the central axis 2 along the central axis 2, one or more water lines 17 are arranged. The water pipe or the water pipes 17 are connected to the combustion chamber 3 side facing away from the burner 1 with a water inlet 16.

Konzentrisch um die Heizölrücklaufleitung 5, die Heizölzulaufleitung 6 und die Wasserleitungen 17 herum sind Heizgas-Diffusions-Leitungen 10, 110 angeordnet. Das Heizgas kann in den Heizgas-Diffusions-Leitungen 10, 110 zu Brennstoffdüsen 11 weitergeleitet werden. Die Brennstoffdüsen 11 sind ebenfalls konzentrisch um die Mittelachse 2 angeordnet und ermöglichen ein Eindüsen des Brennstoffes in die Brennkammer 3.Concentric around the fuel oil return line 5, the fuel oil supply line 6 and the water lines 17 around heating gas diffusion lines 10, 110 are arranged. The heating gas can be forwarded in the heating gas diffusion lines 10, 110 to fuel nozzles 11. The fuel nozzles 11 are also arranged concentrically around the central axis 2 and allow injection of the fuel into the combustion chamber third

In Bezug auf die Mittelachse 2 ist radial außerhalb der Heizgas-Diffusions-Leitungen 10, 110 eine Heizgas-Vormisch-Zuleitung 12 angeordnet, durch die Heizgas über einen ringförmig um die Mittelachse 2 angeordneten Ringverteiler 18 zu weiteren Brennstoffdüsen 13 geleitet werden kann. Durch die Brennstoffdüsen 13 kann der Brennstoff in die Brennkammer 3 eingedüst werden. Die Strömungsrichtung des Brennstoff-Luft-Gemisches in der Brennkammer 3 ist durch Pfeile 14 gekennzeichnet.With respect to the central axis 2, a heating gas premixing feed line 12 is arranged radially outside the heating gas diffusion lines 10, 110, through which heating gas can be conducted to further fuel nozzles 13 via a ring manifold 18 arranged annularly about the central axis 2. Through the fuel nozzles 13, the fuel can be injected into the combustion chamber 3. The direction of flow of the fuel-air mixture in the combustion chamber 3 is indicated by arrows 14.

Die Bezugsziffer 30 kennzeichnet die Position des Brennerträgerflansches. Im Brennerträgerflansch 30 findet insbesondere die Verteilung des Heizgases auf die Heizgas-Diffusions-Leitungen 110 statt. Die Heizgas-Diffusions-Leitungen 110 sind als zur Brennkammer 3 hinführende Rohre ausgestaltet.The reference numeral 30 indicates the position of the burner carrier flange. In particular, the distribution of the heating gas to the heating gas diffusion lines 110 takes place in the burner support flange 30. The heating gas diffusion lines 110 are configured as pipes leading to the combustion chamber 3.

Die Innenflächen des Brennerträgerflansches 30 stehen im direkten Kontakt zu dem durch sie strömenden Heizgas. Aufgrund der chemischen Reaktion von im Heizgas enthaltenen Schwefelverbindungen mit dem Grundwerkstoff dieser Bauteile können sich an den inneren Oberflächen des Brennerträgerflansches 30 Eisensulfid-Beläge bilden. Diese Beläge können abplatzen und zu einer teilweisen Verstopfung der Brennstoffdüsen 11, 13 führen.The inner surfaces of the Brennerträgerflansches 30 are in direct contact with the flowing through them fuel gas. Due to the chemical reaction of sulfur compounds contained in the heating gas with the base material of these components, iron sulfide deposits can form on the inner surfaces of the burner support flange 30. These deposits can flake off and lead to a partial blockage of the fuel nozzles 11, 13.

Die Figur 3 zeigt schematisch einen Schnitt durch einen herkömmlichen Brennerträgerflansch 30 in teilweise perspektivischer Ansicht. Der Brennerträgerflansch 30 kann insbesondere aus Stahl der Sorte 16Mo3 bestehen. Der beispielhaft in der Figur 3 gezeigte herkömmliche Brennerträgerflansch 30 umfasst eine durchgehende Öffnung 31, durch die die Heizölrücklaufleitung 5, die Heizölzulaufleitung 6, die Wasserleitungen 17 und die Heizgas-Diffusions-Leitung 10 hindurch führen. Der Brennerträgerflansch 30 umfasst zudem weitere durchgehende Öffnungen und Verschraubungen, die in der Figur 3 jedoch nicht dargestellt sind. Die Öffnung 31 hat einen kreisförmigen Querschnitt. Weiterhin ist die Öffnung 31 exzentrisch in Bezug auf eine Mittelachse 35 des Brennerträgerflansches 30 angeordnet.The FIG. 3 schematically shows a section through a conventional burner support flange 30 in partial perspective view. The burner support flange 30 may consist in particular of 16Mo3 grade steel. The example in the FIG. 3 The conventional burner support flange 30 shown has a through hole 31 through which the heating oil return pipe 5, the heating oil supply pipe 6, the water pipes 17 and the heating gas diffusion pipe 10 pass. The burner support flange 30 also includes further through openings and screw connections, which in the FIG. 3 but not shown. The opening 31 has a circular cross-section. Furthermore, the opening 31 is arranged eccentrically with respect to a central axis 35 of the burner support flange 30.

Die innere Oberfläche 32 der Öffnung 31 umfasst eine entlang des Umfanges der Öffnung 31 verlaufende Nut 33, durch die Heizgas zu den Heizgas-Diffusions-Leitungen 110 geleitet wird. Der Brennerträgerflahsch 30 umfasst weiterhin einen Strömungskanal 36, der senkrecht zur Mittelachse 35 verläuft und mit der Nut 33 strömungstechnisch verbunden ist. Der Strömungskanal 36 ist zudem mit einer Öffnung 34 verbunden, die radial außerhalb der Öffnung 31 in Bezug auf die Mittelachse 35 angeordnet ist. Durch die Öffnung 34 kann Heizgas in die Nut 33 geleitet werden. Die Öffnung 34 weist eine Mittelachse 37 auf, die parallel zur Mittelachse 35 des Brennerträgerflansches 30 verläuft. Die Öffnung 34 hat einen geringeren Durchmesser als die Öffnung 31.The inner surface 32 of the opening 31 comprises a groove 33 extending along the circumference of the opening 31, through which heating gas is led to the heating gas diffusion lines 110. The burner carrier flax 30 further comprises a flow channel 36 which is perpendicular to the central axis 35 and fluidly connected to the groove 33. The flow channel 36 is also connected to an opening 34, which is arranged radially outside the opening 31 with respect to the central axis 35. Through the opening 34, heating gas can be passed into the groove 33. The opening 34 has a central axis 37, which runs parallel to the central axis 35 of the burner support flange 30. The opening 34 has a smaller diameter than the opening 31.

Die Öffnung 31 weist weiterhin eine innere Oberfläche 32 auf, die typischerweise mit einem Brennstoff in Berührung kommt. Dabei kann es sich insbesondere um die Oberfläche der Nut 33 handeln. Auf dieser inneren Oberfläche 32 können sich infolge des Kontaktes mit dem Brennstoff Beläge, beispielsweise Eisensulfid-Beläge, bilden.The aperture 31 further includes an interior surface 32, which typically contacts a fuel. This may in particular be the surface of the groove 33. On this inner surface 32, deposits, for example iron sulfide deposits, may form as a result of the contact with the fuel.

Die Figur 4 zeigt schematisch einen erfindungsgemäßen Brennerträgerflansch 20 in perspektivischer Ansicht. Der erfindungsgemäße Brennerträgerflansch 20 umfasst einen Grundkörper 21 und einen Einsatz 22. Der Grundkörper besteht zum Beispiel aus Stahl der Sorte 16Mo3. Der Einsatz 22 besteht aus einem korrosionsbeständigen Material, zum Beispiel IN617.The FIG. 4 schematically shows a burner support flange 20 according to the invention in a perspective view. The burner support flange 20 according to the invention comprises a main body 21 and an insert 22. The main body is made of 16Mo3 steel, for example. The insert 22 is made of a corrosion resistant material, for example IN617.

Der Grundkörper 21 hat einen kreisförmigen Querschnitt mit einer Mittelachse 29. Er umfasst zudem eine durchgehende Öffnung 26, die exzentrisch in Bezug auf die Mittelachse 29 angeordnet ist. Die Öffnung 26 hat einen tropfenförmigen Querschnitt. Die innere Oberfläche der Öffnung 26 ist mit der Bezugsziffer 24 gekennzeichnet.The main body 21 has a circular cross section with a central axis 29. It also comprises a through opening 26 which is arranged eccentrically with respect to the central axis 29. The opening 26 has a teardrop-shaped cross-section. The inner surface of the opening 26 is indicated by the reference numeral 24.

Der Einsatz 22 umfasst eine äußere Oberfläche 25, die so ausgestaltet ist, dass der Einsatz 22 so in die Öffnung 26 des Grundkörpers 21 eingesetzt werden kann, dass die innere Oberfläche 24 des Grundkörpers 21 in schlüssiger Verbindung zu der äußeren Oberfläche 25 des Einsatzes 22 steht.The insert 22 includes an outer surface 25 that is configured to allow the insert 22 to be inserted into the opening 26 of the body 21 such that the inner surface 24 of the body 21 is in a positive engagement with the outer surface 25 of the insert 22 ,

Der Einsatz 22 umfasst zudem eine durchgängige Öffnung 23, die einen kreisförmigen Querschnitt hat und exzentrisch in Bezug auf die Mittelachse 29 angeordnet ist. Die innere, potentiell mit einem Brennstoff in Kontakt kommende Oberfläche der Öffnung 23 ist mit der Bezugsziffer 28 gekennzeichnet. Der Einsatz 22 umfasst zudem eine Öffnung 27, die dieselben Eigenschaften wie die Öffnung 34 des im Zusammenhang mit der Figur 3 beschriebenen herkömmlichen Brennerträgerflansches 30 hat.The insert 22 also includes a continuous opening 23, which has a circular cross-section and is arranged eccentrically with respect to the central axis 29. The interior, potentially fuel-contacting surface of the opening 23 is indicated by the reference numeral 28. The insert 22 also includes an opening 27 having the same characteristics as the opening 34 of the associated with the FIG. 3 has described conventional Brenner support flange 30.

Die in der Figur 4 gezeigte Ausführungsvariante zeichnet sich dadurch aus, dass bei ihr einerseits nur verhältnismäßig wenig korrosionsbeständiges Material benötigt wird, dass aber andererseits die Herstellung aufgrund des asymmetrischen, tropfenförmigen Querschnittes der Öffnung 26 und der äußeren Oberfläche 25 des Einsatzes 22 aufwendig ist.The in the FIG. 4 shown variant is characterized by the fact that in her only relatively little corrosion-resistant material is required on the one hand, but on the other hand, the production due to the asymmetrical, drop-shaped cross-section of the opening 26 and the outer surface 25 of the insert 22 is expensive.

Die Figur 5 zeigt eine weitere Ausführungsvariante eines erfindungsgemäßen Brennerträgerflansches 40 in perspektivischer Ansicht. Der erfindungsgemäße Brennerträgerflansch 40 zeichnet sich im Unterschied zu dem in der Figur 4 gezeigten Brennerträgerflansch 20 dadurch aus, dass die Öffnung 26 des Grundkörpers 21 und der Einsatz 22 einen kreisförmigen Querschnitt aufweisen. Der Einsatz 22 umfasst eine Mittelachse 41, die parallel zu der Mittelachse 29 des Brennerträgerflansches 40 verläuft. Der Einsatz 22 ist wiederum exzentrisch in Bezug auf die Mittelachse 29 des Brennerträgerflansches 40 angeordnet.The FIG. 5 shows a further embodiment of a burner support flange 40 according to the invention in a perspective view. The burner support flange 40 according to the invention is distinguished in contrast to that in the FIG. 4 shown Brennererträgerflansch 20 characterized in that the opening 26 of the base 21 and the insert 22 have a circular cross-section. The insert 22 comprises a central axis 41, which runs parallel to the central axis 29 of the burner support flange 40. The insert 22 is in turn arranged eccentrically with respect to the central axis 29 of the burner support flange 40.

Innerhalb des Einsatzes 22 ist die Öffnung 23, die wiederum einen kreisförmigen Querschnitt aufweist, exzentrisch in Bezug auf die Mittelachse 41 des Einsatzes 22 angeordnet. Die übrigen in der Figur 5 gekennzeichneten Elemente entsprechen den im Zusammenhang mit der Figur 4 beschriebenen Elementen.Within the insert 22, the opening 23, which in turn has a circular cross-section, is arranged eccentrically with respect to the central axis 41 of the insert 22. The rest in the FIG. 5 labeled elements correspond to those associated with the FIG. 4 described elements.

Eine weitere Ausführungsvariante eines erfindungsgemäßen Brennerflansches 50 ist in der Figur 6 schematisch in perspektivischer Ansicht dargestellt. Im Unterschied zu dem in der Figur 5 dargestellten Brennerträgerflansch 40 zeichnet sich der in der Figur 6 gezeigte Brennerträgerflansch 50 dadurch aus, dass die Öffnung 23 des Einsatzes 22 konzentrisch in Bezug auf die Mittelachse 41 des Einsatzes 22 angeordnet ist. Im Übrigen weist der Brennerträgerflansch 50 dieselben Merkmale und Eigenschaften wie der Brennerträgerflansch 40, der in der Figur 5 gezeigt ist, auf.A further embodiment of a burner flange 50 according to the invention is in the FIG. 6 schematically shown in perspective view. In contrast to that in the FIG. 5 illustrated Brennerträgerflansch 40 is characterized in the FIG. 6 shown Brennererträgerflansch 50 characterized in that the opening 23 of the insert 22 is arranged concentrically with respect to the central axis 41 of the insert 22. Incidentally, the burner support flange 50 has the same features and properties as the burner support flange 40 described in US Pat FIG. 5 is shown on.

Die in den Figuren 5 und 6 gezeigten Ausführungsvarianten zeichnen sich im Vergleich zu der in der Figur 4 gezeigten Variante dadurch aus, dass zwar mehr korrosionsbeständiges, teures Material benötigt wird, die Herstellung jedoch aufgrund der kreisförmigen Querschnitte der Öffnung 26 des Grundkörpers 21 und der äußeren Oberfläche 25 des Einsatzes 22 einfacher und kostengünstiger ist. Bei der in der Figur 6 gezeigten Ausgestaltung handelt es sich um die bevorzugte Ausführungsvariante.The in the FIGS. 5 and 6 Variants shown are characterized in comparison to in the FIG. 4 shown variant in that although more corrosion-resistant, expensive material is needed, but the production due to the circular cross-sections of the opening 26 of the body 21 and the outer surface 25 of the insert 22 is simpler and less expensive. When in the FIG. 6 The embodiment shown is the preferred embodiment.

Durch die Zweiteilung des erfindungsgemäßen Brennerträgerflansches 20, 40, 50 in Form eines Grundkörpers 21 und eines Einsatzes 22, die aus verschiedenen Werkstoffen bestehen, kann das Problem der Belagbildung kostengünstig behoben werden. Dabei wird insbesondere der gefährdete, da potentiell mit einem Brennstoff in Kontakt kommende, Teil des Brennerträgerflansches 20, 40, 50 aus einem korrosionsbeständigen Material, zum Beispiel IN617, und der restliche Teil, also der Grundkörper 21, aus einem kostengünstigen Material, zum Beispiel Stahl der Sorte 16Mo3, gefertigt.Due to the division of the burner support flange 20, 40, 50 according to the invention in the form of a main body 21 and an insert 22, which consist of different materials, the problem of the formation of deposits can be repaired cost. In particular, the endangered part of the burner support flange 20, 40, 50, which potentially comes into contact with a fuel, is made of a corrosion-resistant material, for example IN617, and the remaining part, ie the base body 21, of a cost-effective material, for example steel the variety 16Mo3, manufactured.

Claims (12)

Brennerelement (20, 40, 50), welches eine Oberfläche (28) umfasst, die potentiell mit einem Brennstoff in Kontakt kommt,
dadurch gekennzeichnet, dass
das Brennerelement (20, 40, 50) einen Grundwerkstoff und einen korrosionsbeständigen Werkstoff umfasst, wobei die potentiell mit einem Brennstoff in Kontakt kommende Oberfläche (28) aus dem korrosionsbeständigen Werkstoff gebildet wird.A burner element (20, 40, 50) comprising a surface (28) potentially in contact with a fuel,
characterized in that
the burner element (20, 40, 50) comprises a base material and a corrosion resistant material, wherein the potentially fuel contacting surface (28) is formed of the corrosion resistant material. Brennerelement (20, 40, 50) nach Anspruch 1,
dadurch gekennzeichnet, dass
es sich bei dem Grundwerkstoff um Stahl handelt.Burner element (20, 40, 50) according to claim 1,
characterized in that
it is the base material is steel. Brennerelement (20, 40, 50) nach Anspruch 2,
dadurch gekennzeichnet, dass
es sich bei dem Grundwerkstoff um Stahl der Sorte 16Mo3 handelt.Burner element (20, 40, 50) according to claim 2,
characterized in that
the basic material is 16Mo3 steel. Brennerelement (20, 40, 50) nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass
es sich bei dem korrosionsbeständigen Werkstoff um IN617 handelt.Burner element (20, 40, 50) according to one of claims 1 to 3,
characterized in that
the corrosion resistant material is IN617. Brennerelement (20, 40, 50) nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass
das Brennerelement (20, 40, 50) als Brennerträgerflansch (20, 40, 50) ausgestaltet ist.Burner element (20, 40, 50) according to one of claims 1 to 4,
characterized in that
the burner element (20, 40, 50) is designed as a burner carrier flange (20, 40, 50). Brennerelement (20, 40, 50) nach Anspruch 5,
dadurch gekennzeichnet, dass
der Brennerträgerflansch (20, 40, 50) einen den Grundwerkstoff umfassenden Grundkörper (21) und einen den korrosionsbeständigen Werkstoff umfassenden Einsatz (22) umfasst.Burner element (20, 40, 50) according to claim 5,
characterized in that
the Brennerträgerflansch (20, 40, 50) comprising a base material base body (21) and a corrosion resistant material comprising insert (22). Brennerelement (20, 40, 50) nach Anspruch 6,
dadurch gekennzeichnet, dass
der Einsatz (22) eine äußere Oberfläche (25) und mindestens eine Öffnung (23) umfasst, der Grundkörper (21) eine Öffnung 26) mit einer inneren Oberfläche (24) umfasst und der Einsatz (22) so in der Öffnung (26) des Grundkörpers (21) angeordnet ist, dass die innere Oberfläche (24) der Öffnung (26) des Grundkörpers (21) mit der äußeren Oberfläche (25) des Einsatzes (22) schlüssig verbunden ist.Burner element (20, 40, 50) according to claim 6,
characterized in that
the insert (22) comprises an outer surface (25) and at least one opening (23), the base body (21) has an opening 26) with an inner surface (24) and the insert (22) is thus located in the opening (26). the base body (21) is arranged so that the inner surface (24) of the opening (26) of the base body (21) with the outer surface (25) of the insert (22) is connected conclusively. Brennerelement (20, 40, 50) nach Anspruch 7,
dadurch gekennzeichnet, dass
die Öffnung (26) des Grundkörpers (21) in diesem exzentrisch in Bezug auf eine Mittelachse (29) des Grundkörpers (21) angeordnet ist.Burner element (20, 40, 50) according to claim 7,
characterized in that
the opening (26) of the base body (21) is arranged in this eccentric with respect to a central axis (29) of the base body (21). Brennerelement (20, 40, 50) nach Anspruch 7 oder 8,
dadurch gekennzeichnet, dass
die Öffnung (23) des Einsatzes (22) in diesem exzentrisch in Bezug auf eine Mittelachse (41) des Einsatzes (22) angeordnet ist.Burner element (20, 40, 50) according to claim 7 or 8,
characterized in that
the opening (23) of the insert (22) is arranged eccentrically therewith in relation to a central axis (41) of the insert (22). Brennerelement (20, 40, 50) nach einem der Ansprüche 7 bis 9,
dadurch gekennzeichnet, dass
die Öffnung (26) des Grundkörpers (21) und/oder die Öffnung (23) des Einsatzes (22) einen kreisförmigen Querschnitt aufweisen/aufweist.Burner element (20, 40, 50) according to one of claims 7 to 9,
characterized in that
the opening (26) of the base body (21) and / or the opening (23) of the insert (22) have / has a circular cross-section. Brenner (1), der ein Brennerelement (20, 40, 50) nach einem der Ansprüche 1 bis 10 umfasst.A burner (1) comprising a burner element (20, 40, 50) according to any one of claims 1 to 10. Brenner (1) nach Anspruch 11,
dadurch.gekennzeichnet, dass
es sich bei dem Brenner (1) um einen Pilotbrenner handelt.Burner (1) according to claim 11,
characterized.gekennzeichnet that
it is in the burner (1) is a pilot burner.
EP20080002769 2008-02-14 2008-02-14 Burner element and burner with corrosion-resistant insert Withdrawn EP2090825A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP20080002769 EP2090825A1 (en) 2008-02-14 2008-02-14 Burner element and burner with corrosion-resistant insert
US12/867,513 US9140449B2 (en) 2008-02-14 2009-02-09 Burning element and burner with a corrosion-resistant insert
CN2009801132503A CN102007342B (en) 2008-02-14 2009-02-09 Burner element and burner with corrosion-resistant insert
EP20090710560 EP2245369B1 (en) 2008-02-14 2009-02-09 Burner element and burner with corrosion-resistant insert
RU2010137905/06A RU2488039C2 (en) 2008-02-14 2009-02-09 Element of burner and burner with corrosion-resistant insert
PCT/EP2009/051432 WO2009101043A1 (en) 2008-02-14 2009-02-09 Burning element and burner with a corrosion-resistant insert

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20080002769 EP2090825A1 (en) 2008-02-14 2008-02-14 Burner element and burner with corrosion-resistant insert

Publications (1)

Publication Number Publication Date
EP2090825A1 true EP2090825A1 (en) 2009-08-19

Family

ID=39720130

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EP20080002769 Withdrawn EP2090825A1 (en) 2008-02-14 2008-02-14 Burner element and burner with corrosion-resistant insert
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EP (2) EP2090825A1 (en)
CN (1) CN102007342B (en)
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Also Published As

Publication number Publication date
EP2245369A1 (en) 2010-11-03
US9140449B2 (en) 2015-09-22
CN102007342A (en) 2011-04-06
RU2488039C2 (en) 2013-07-20
CN102007342B (en) 2012-12-05
WO2009101043A1 (en) 2009-08-20
US20110104626A1 (en) 2011-05-05
RU2010137905A (en) 2012-03-20
EP2245369B1 (en) 2014-10-15

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