EP2245369A1 - Burning element and burner with a corrosion-resistant insert - Google Patents
Burning element and burner with a corrosion-resistant insertInfo
- Publication number
- EP2245369A1 EP2245369A1 EP09710560A EP09710560A EP2245369A1 EP 2245369 A1 EP2245369 A1 EP 2245369A1 EP 09710560 A EP09710560 A EP 09710560A EP 09710560 A EP09710560 A EP 09710560A EP 2245369 A1 EP2245369 A1 EP 2245369A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- opening
- insert
- fuel
- corrosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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 (H 2 S) contained in the fuel 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 can be eccentric with respect to a
- 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 can, for example, nozzle bores with a
- 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.
- Fig. 2 shows schematically a section through a in
- Fig. 3 shows schematically a section through a conventional burner support flange in a partially perspective view.
- FIG. 4 schematically shows a burner carrier flange according to the invention in a perspective view.
- Fig. 5 shows schematically an alternative burner support flange according to the invention in a perspective view.
- Fig. 6 shows schematically another burner support flange according to the invention in a perspective view.
- 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 diagram shown in Figure 1 is 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 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, they increased steadily in the second stage II, but were mostly 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 measurement shown in FIG. 1 shows that an increasing blockage of the burner as a result of the formation of iron sulfide deposits is accompanied by a considerable deterioration of the CO emission values.
- 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.
- 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 distributor 18 arranged annularly around the central axis 2.
- the reference numeral 30 indicates the position of the burner carrier flange.
- 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 Brennerziflansches 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 may be on the inner surfaces of the
- FIG. 3 schematically shows a section through a conventional burner support flange 30 in a partially perspective view.
- the burner support flange 30 may consist in particular of 16Mo3 grade steel.
- the conventional burner support flange 30 shown by way of example in FIG. 3 comprises a through opening 31 through which the heating oil return line 5, the heating oil feed line 6, the water lines 17 and the heating gas diffusion line 10 pass.
- Burner support flange 30 also comprises further through openings and screw connections, which are not shown in FIG.
- 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 support flange 30 further comprises a flow passage 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 carrier 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 conventional burner support flange 30 described in connection with FIG.
- the embodiment variant shown in FIG. 4 is characterized by the fact that it requires on the one hand only relatively little corrosion-resistant material, but on the other hand the production is complicated due to the asymmetrical, drop-shaped cross section of the opening 26 and the outer surface 25 of the insert 22.
- FIG. 5 shows a further embodiment variant of a burner support flange 40 according to the invention in a perspective view.
- Burner support flange 40 in contrast to the burner support flange 20 shown in FIG. 4, is characterized in that the opening 26 of the base body 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 other elements marked in FIG. 5 correspond to the elements described in connection with FIG.
- a further embodiment variant of a burner flange 50 according to the invention is shown schematically in a perspective view in FIG.
- the burner support flange 50 shown in FIG. 6 is characterized in that the opening 23 of the insert 22 is arranged concentrically with respect to the center axis 41 of the insert 22.
- the burner support flange 50 has the same features and properties as the burner support flange 40 shown in FIG.
- 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.
Landscapes
- 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
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20090710560 EP2245369B1 (en) | 2008-02-14 | 2009-02-09 | Burner element and burner with corrosion-resistant insert |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20080002769 EP2090825A1 (en) | 2008-02-14 | 2008-02-14 | 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 |
PCT/EP2009/051432 WO2009101043A1 (en) | 2008-02-14 | 2009-02-09 | Burning element and burner with a corrosion-resistant insert |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2245369A1 true EP2245369A1 (en) | 2010-11-03 |
EP2245369B1 EP2245369B1 (en) | 2014-10-15 |
Family
ID=39720130
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080002769 Withdrawn EP2090825A1 (en) | 2008-02-14 | 2008-02-14 | Burner element and burner with corrosion-resistant insert |
EP20090710560 Not-in-force EP2245369B1 (en) | 2008-02-14 | 2009-02-09 | Burner element and burner with corrosion-resistant insert |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080002769 Withdrawn EP2090825A1 (en) | 2008-02-14 | 2008-02-14 | Burner element and burner with corrosion-resistant insert |
Country Status (5)
Country | Link |
---|---|
US (1) | US9140449B2 (en) |
EP (2) | EP2090825A1 (en) |
CN (1) | CN102007342B (en) |
RU (1) | RU2488039C2 (en) |
WO (1) | WO2009101043A1 (en) |
Families Citing this family (4)
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DE102009038845A1 (en) * | 2009-08-26 | 2011-03-03 | Siemens Aktiengesellschaft | Swirl vane, burner and gas turbine |
DE102011003798A1 (en) | 2011-02-08 | 2012-08-09 | Siemens Aktiengesellschaft | Burner carrier with separate inner and outer flange |
EP2725302A1 (en) | 2012-10-25 | 2014-04-30 | Alstom Technology Ltd | Reheat burner arrangement |
EP2823952A1 (en) * | 2013-07-09 | 2015-01-14 | Siemens Aktiengesellschaft | Adaptation method and production method for components produced by means of SLM |
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-
2008
- 2008-02-14 EP EP20080002769 patent/EP2090825A1/en not_active Withdrawn
-
2009
- 2009-02-09 EP EP20090710560 patent/EP2245369B1/en not_active Not-in-force
- 2009-02-09 CN CN2009801132503A patent/CN102007342B/en not_active Expired - Fee Related
- 2009-02-09 US US12/867,513 patent/US9140449B2/en not_active Expired - Fee Related
- 2009-02-09 WO PCT/EP2009/051432 patent/WO2009101043A1/en active Application Filing
- 2009-02-09 RU RU2010137905/06A patent/RU2488039C2/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2009101043A1 * |
Also Published As
Publication number | Publication date |
---|---|
US9140449B2 (en) | 2015-09-22 |
US20110104626A1 (en) | 2011-05-05 |
RU2488039C2 (en) | 2013-07-20 |
CN102007342B (en) | 2012-12-05 |
EP2245369B1 (en) | 2014-10-15 |
EP2090825A1 (en) | 2009-08-19 |
RU2010137905A (en) | 2012-03-20 |
CN102007342A (en) | 2011-04-06 |
WO2009101043A1 (en) | 2009-08-20 |
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Legal Events
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