EP2588806A1 - Brennermodul - Google Patents
BrennermodulInfo
- Publication number
- EP2588806A1 EP2588806A1 EP11720444.6A EP11720444A EP2588806A1 EP 2588806 A1 EP2588806 A1 EP 2588806A1 EP 11720444 A EP11720444 A EP 11720444A EP 2588806 A1 EP2588806 A1 EP 2588806A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- plate
- burner
- module according
- burner module
- 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
- 239000000446 fuel Substances 0.000 claims abstract description 47
- 238000002485 combustion reaction Methods 0.000 claims abstract description 30
- 238000002347 injection Methods 0.000 claims abstract 2
- 239000007924 injection Substances 0.000 claims abstract 2
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000004049 embossing Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000003698 laser cutting Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
- F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- 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
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/00012—Liquid or gas fuel burners with flames spread over a flat surface, either premix or non-premix type, e.g. "Flächenbrenner"
Definitions
- Burner module The invention relates to a burner module according to the preamble of claim 1.
- micro flame burners Another approach to gas turbine combustion is the use of micro flame burners.
- the number of flames is significantly increased compared to the design in the prior art (number depending on the power (> 1000)).
- the size of the flames is only a few millimeters to a few centimeters.
- the dwell time ⁇ at high temperatures the formation of thermal NOx is drastically reduced. Due to the good burnout, the formation of CO is minimized.
- DE 2023 060 shows a burner for gaseous fuels having a perforated porous outlet plate which adjoins a combustion zone on one side and a base plate on the other.
- the base plate is connected to the exit plate so that the perforations or holes in the exit plate are congruent with the perforations or holes in the base plate. So air can flow through them.
- the exit points have of the Grund ⁇ plate such a distance between the holes, that
- Fuel passageways are formed. These provide the Strö ⁇ tion of the fuel gas, a resistance which is low compared to the flow resistance through the outlet plate.
- the burner as a whole is designed so that during the Use of the burner gaseous fuel through the
- EP 1 001 216 A1 shows a disk with openings passing through the disk. Channels are arranged transversely to the openings through which fuel is passed. Through these channels fuel can be supplied to the openings.
- microflame burners a major drawback is that the large number of microflame burners adds enormously to the cost of manufacturing the entire gas turbine unless an efficient manufacturing process with a correspondingly simple design is used. At the same time, however, every single Bren ⁇ ner must ensure adequate mixing of air and fuel / fuel gas. In addition, a certain control range for the power control of the gas turbine is desirable, which must be achieved differently for small flames than for large ones.
- the object of the present invention is therefore to specify a burner module which avoids the above disadvantages while maintaining the above-mentioned conditions.
- the related to the burner module object is achieved by the administration of a burner on ⁇ module according to Claim. 1 More part-like before ⁇ embodiments result from the dependent claims.
- burner module By the burner module according to the invention thus individual parts of the combustion chamber or the entire combustion chamber can be replaced by such burner modules.
- the design and manufacture of the individual modules is very cost-efficient and can also be used in small-scale applications and also reduce costs.
- the simple design allows this a fast and intensive mixing of fuel and air (or an air-fuel mixture), just feeding the fuel with not parallel to the air flow arranged fuel compounds leads to very good mixing conditions.
- the burner module according to the invention reduces the required residence time in the combustion chamber.
- the combustion chamber compared to the combustion chambers in the prior art can be significantly reduced.
- the costs and the effort can be reduced here as well.
- the reduction of the combustion chamber simultaneously allows a shortening of the rotor or the entire gas turbine.
- material costs are saved to a great extent and the dynamic behavior of the machine with respect to vibrations and mass inertia is improved.
- the surface of the combustion chamber to be cooled also decreases. Cooling air can be saved here, which improves the efficiency of the overall process.
- FIG. 1 shows a section along an axis I-I of a first embodiment of a burner module according to the invention
- Fig. 3 shows a section along a line II of a second embodiment of a burner according to the invention ⁇ SEN module, 4 shows the section of the second embodiment along an axis II-II,
- Fig. 5 shows the section of a thirdheldsbei ⁇ game along an axis II-II.
- Fig. 1 shows a section along an axis II of he ⁇ inventive burner module according to a first embodiment ⁇ example.
- 2 shows the section of the first exemplary embodiment along the axis II-II extending perpendicular to II.
- the burner module consists of a plate 90 with a bottom 91. On this bottom 91, a top 92 is fixed by soldering or welding, the centering is accomplished with index holes and pinnacles. In the bottom 91 at least two, however, usually more cavities are introduced.
- the cavities can be a Laserschnei ⁇ dung or erosion or stamping or pressing, but are not limited to this production method is ⁇ limits.
- the cavities are supplied with fuel 110 (not shown).
- grooves 95 are in the first exporting approximately ⁇ for grooves 95 ( Figure 2). Also suitable for the production of grooves 95 laser cutting, milling, EDM or embossing / pressing. Are - as shown in Fig. 2 - several such grooves 95 on a burner module, so are DIE se preferably parallel to each other, that is, in rows being arranged ⁇ . In the grooves 95 also fuel 110 is vorgese ⁇ hen.
- the grooves 95 terminate in a collection channel (not shown) at the end of the burner module and then via a suitable flange construction to a fuel supply system
- a passageway 98 is now attached, which extends from the bottom 91 to the top 92.
- the through-channel 98 in the upper side 92 has a through-passage end 111.
- the Plat ⁇ te 90 consists of several passage ducts 98 and a plurality of cavities.
- the passageways 98 serve to guide air 100 through the plate 90.
- the air 100 may also be an air-fuel mixture.
- an air flow direction L is formed by the air 100 flowing through the passageways 98.
- a combustion chamber (not shown).
- the air 100 is transported through the inside through channels 98 in the Brennkam ⁇ mer.
- the through-passages 98 like the cavities, are introduced into the plate 90, for example by punching, drilling or laser drilling.
- the passageway 98 is also not be ⁇ limited to this type of production, but these represent a particularly simple Her ⁇ position wise.
- the passageway 98 has at least two mutually opposite channel openings 101 (FIG. 2); that is, they are arranged at the same height in the passageway 98. This allows a better turbulence of the fuel with the air 100 take place.
- the plate 90 also has two fuel connections 105 leading from the grooves 95 to the channel openings 101.
- the fuel connections 105 are with the channel openings 101 at the same height.
- the fuel connections 105 are introduced, for example, by punching, erosion or laser drilling.
- the fuel 110 can thus be injected from the grooves 95 via the fuel connections 105 into the flow of the air 100 of the through-passage 98 and thus mix.
- the fuel connections 105 can be arranged in such a way to the through-channel 98, which here essentially sets a 90 ° angle. This results in a particularly good mixing ratio of
- compressed air 100 flows through the passageways 98 into the combustion chamber.
- Fuel 110 enters the air 100 from the grooves 95 through the fuel connections 105. After appropriate mixing then burns a flame essentially as a premix flame or partially pre-mixed flame behind the flame bottom.
- the combustion results in a premixed or partially premixed flame.
- the upper side 92 then contains exclusively the passage end 111 (FIG. 1) seen in the air flow direction L. That's it
- Through-passage end 111 is formed as a diffuser for mixing air 100 with fuel 110. This results in a change in the flow rate of the flow present in the passageway 98, resulting in improved mixing and inflow into the combustion chamber.
- Fig. 3 shows a second embodiment of a burner OF INVENTION ⁇ to the invention the module.
- the plate 90 consists of a bottom 91 and a top 92.
- Un ⁇ terseite 91 as cavities hollow areas 120 are introduced.
- the plate 90 has a plurality of hollow regions 120 and through-channels 98. Hollow regions 120 also include fuel (not shown). In this case, the hollow regions 120 are distributed in the plate 90 as a honeycomb-shaped (FIG. 5) or square (FIG.
- the hollow regions 120 may be triangular with a side surface b and arranged at a distance a from each other (Fig. 5).
- the hollow portions 120 may also be performed square with a side surface b from ⁇ and arranged at a distance a from each other
- the geometric arrangement of the hollow regions 120 in the plate is not limited to these geometric shapes .
- the hollow regions 120 may have any other shape.
- Into the plate 90 of Fig. 3 are also passageways
- the through-channels 98 preferably have three channels. Nalö réelleen 101 and four channel openings 101 on.
- the three or four channel openings 101 each relate to a passage channel 98.
- the channel openings 101 may be arranged in the upper side 92, so that the fuel either first in the combustion chamber with the air 100 mixes (that is, the channel openings are on the surface 92 to ⁇ ordered) or in the passageway 98, just before the air enters the combustion chamber 100.
- the fuel connections 105 are directed obliquely radially inward toward the through-passage 98, possibly tangentially to the through-passage 98.
- the two fuel connections 105 to the through-passage 98 can have an angle between> 0 and 90 °. As a result, an increase of the mixture takes place.
- Fuel which is guided in the hollow region 120, thus escapes into the flow of the air 100 of the passage channel 98 via the obliquely radially inwardly directed, possibly tangentially engaged fuel connections 105. The flame then burns after appropriate mixing essentially as a diffusion flame behind the flame bottom.
- the combustion chamber can be significantly reduced in size, as a conventional combustion chamber with e.g. Pilot burner.
- the described design and manufacturing methodology enables the advantages of micro flame burners to be used cost-effectively also in gas turbines for large scale industrial applications.
- the concept of construction and production described here can also find use in small applications and also reduce costs here.
- the design allows for a fast and intensive mixing of fuel and air 100, with just the supply of fuel, with tangen ⁇ tial or at 90 ° angle, arranged for air flow fuel compounds leads to excellent mixing ratios.
- Reduced combustion chamber or the combustion chamber can be downsized.
- the costs and the effort can be reduced here as well.
- the reduction of the combustion chamber at the same time allows a shortening of the rotor or ge ⁇ entire gas turbine, here are largely saved material costs, the dynamic behavior of the machine with respect to vibrations and inertia improved.
- Ver ⁇ ubbedung the combustion chamber and the surface to be cooled of the combustion chamber decreases. Cooling air can be saved here, which improves the efficiency of the overall process.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11720444.6A EP2588806B1 (de) | 2010-07-02 | 2011-05-16 | Brennermodul |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10168215A EP2402655A1 (de) | 2010-07-02 | 2010-07-02 | Brennermodul |
PCT/EP2011/057820 WO2012000712A1 (de) | 2010-07-02 | 2011-05-16 | Brennermodul |
EP11720444.6A EP2588806B1 (de) | 2010-07-02 | 2011-05-16 | Brennermodul |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2588806A1 true EP2588806A1 (de) | 2013-05-08 |
EP2588806B1 EP2588806B1 (de) | 2014-08-20 |
Family
ID=43536656
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10168215A Withdrawn EP2402655A1 (de) | 2010-07-02 | 2010-07-02 | Brennermodul |
EP11720444.6A Active EP2588806B1 (de) | 2010-07-02 | 2011-05-16 | Brennermodul |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10168215A Withdrawn EP2402655A1 (de) | 2010-07-02 | 2010-07-02 | Brennermodul |
Country Status (2)
Country | Link |
---|---|
EP (2) | EP2402655A1 (de) |
WO (1) | WO2012000712A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103881760B (zh) * | 2014-01-26 | 2015-11-25 | 西安交通大学 | 一种新型微通道循环冷却的气化工艺烧嘴 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1968395A (en) * | 1932-02-03 | 1934-07-31 | Carl L Zeller | Gas burner |
GB1263611A (en) | 1969-05-19 | 1972-02-16 | British Petroleum Co | Gas burner |
US6267585B1 (en) * | 1995-12-19 | 2001-07-31 | Daimlerchrysler Aerospace Airbus Gmbh | Method and combustor for combusting hydrogen |
US5881756A (en) * | 1995-12-22 | 1999-03-16 | Institute Of Gas Technology | Process and apparatus for homogeneous mixing of gaseous fluids |
EP1001216A1 (de) | 1998-11-11 | 2000-05-17 | Siemens Aktiengesellschaft | Vorrichtung zur Einleitung eines Fluides in einen Kanal |
DE102005031231B3 (de) * | 2005-07-01 | 2007-01-11 | J. Eberspächer GmbH & Co. KG | Wandstruktur für einen Brenner |
EP2039996B1 (de) * | 2007-09-21 | 2014-08-06 | Electrolux Home Products Corporation N.V. | Gasbrenner für ein Kochfeld |
US8157189B2 (en) * | 2009-04-03 | 2012-04-17 | General Electric Company | Premixing direct injector |
-
2010
- 2010-07-02 EP EP10168215A patent/EP2402655A1/de not_active Withdrawn
-
2011
- 2011-05-16 WO PCT/EP2011/057820 patent/WO2012000712A1/de active Application Filing
- 2011-05-16 EP EP11720444.6A patent/EP2588806B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2012000712A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2588806B1 (de) | 2014-08-20 |
EP2402655A1 (de) | 2012-01-04 |
WO2012000712A1 (de) | 2012-01-05 |
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