EP0754908B2 - Verfahren und Vorrichtung zur Unterdrückung von Flammen-/Druckschwingungen bei einer Feuerung - Google Patents
Verfahren und Vorrichtung zur Unterdrückung von Flammen-/Druckschwingungen bei einer Feuerung Download PDFInfo
- Publication number
- EP0754908B2 EP0754908B2 EP96109647A EP96109647A EP0754908B2 EP 0754908 B2 EP0754908 B2 EP 0754908B2 EP 96109647 A EP96109647 A EP 96109647A EP 96109647 A EP96109647 A EP 96109647A EP 0754908 B2 EP0754908 B2 EP 0754908B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- flame
- gas
- fuel
- burner
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 22
- 239000007789 gas Substances 0.000 claims abstract description 63
- 239000000446 fuel Substances 0.000 claims abstract description 34
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011261 inert gas Substances 0.000 claims abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 3
- 230000001133 acceleration Effects 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 230000010349 pulsation Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002912 waste gas Substances 0.000 abstract 1
- 239000002737 fuel gas Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000004936 stimulating effect Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 241001156002 Anthonomus pomorum Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2210/00—Noise abatement
Definitions
- the invention relates to a method for suppression of flame / pressure vibrations at one Furnace which has a burner with which one Flame is generated, and a combustion chamber in which the Flame is directed, as well as a corresponding device to implement the procedure.
- the present invention is therefore the object to provide a method by which such Flame / pressure vibrations with intolerable Pressure amplitudes are to be prevented.
- the invention proposed the flame of the burner with a To encase the flow of gas as closely as possible, one higher flow velocity in the direction of flame propagation has as the outer or edge areas the flame or the main burner flow containing fuel. This will result in a transfer of Axial impulse on the outer areas of the flame or the fuel-containing burner outflow.
- the invention is based on the finding that the vibrations essentially by themselves Edge area of the flame causes ring vortices or be reinforced. These ring vertebrae by rolling up the edge areas of the fuel-containing Burner flow arise, close when they are formed hot flue gases with a rapid heating of the fuel / air mixture also contained in the ring vortex and an impulsive, pressure vibration stimulating Abreaction of the fuel cause.
- the gas jacket flow behaves with respect to its Effect in suppressing the formation of reactive Ring vertebrae essentially as if they had none Contains fuel. I.e. possibly in the boundary layer between gas jacket flow and surrounding medium resulting vortices cannot react and therefore not to excite or amplify flame / pressure vibrations to lead. Not this one there can be an ignitable mixture of gas and fuel the gas is both inert gas (e.g. nitrogen, Water vapor or burned exhaust gases) as well Act air, in the former case the fuel concentration is irrelevant since inert gas with fuel in none Mix ratio react i.e. burn can, while in the second case the fuel concentration outside the ignition limits of the respective fuel lies, so that here also from the gas jacket flow the resulting ring vortices cannot react.
- inert gas e.g. nitrogen, Water vapor or burned exhaust gases
- the gas jacket flow can be used as a medium also a fuel / air mixture with fuel concentrations within that of the particular fuel dependent ignition limits are used if the essentially axial outflow velocity this basically flammable gas jacket flow towards the main burner flow, which is the flame forms, is chosen so high that on the one hand an adequate Transmission of axial impulse and thus one sufficient acceleration of the outside areas of the Flame or the main burner flow guaranteed on the other hand, the formation of an independent, stable flame (or multiple flames in the case of several individual outlet openings of the gas jacket flow) prevented from the gas jacket flow becomes. That is, the exit speed the gas jacket flow is significantly higher than the blow-off limit speed for a flame.
- the gas jacket flow preferably runs parallel to the central axis of the flame, but it can also with respect to this direction of flame or main flow the fuel / air flow additionally a certain Have radial and / or tangential component, resulting in a certain expansion of the gas jacket follows along the direction of the flame, taking into account is that not all burners have flames, in critical areas have non-changing cross sections, but that flames also the one described can take a conical shape. It is essential always that the gas jacket flow compared to the unclad flame or fuel / air flow has sufficiently high momentum in the axial direction.
- the distance between the gas outlet opening and the Edge of the burning outlet from which the Fuel / air mixture should flow out be kept low.
- the gas outlet opening is preferably for generation the gas jacket flow as a gap or as a gap nozzle trained and tightly encloses the burner outlet, the burner outlet being both rotationally symmetrical can be designed as an elongated Can have a cross-sectional shape.
- the gap is then designed as an annular gap nozzle, which in particular concentric and closely spaced around the Burner outlet is arranged.
- Gas outlet openings surround the burner outlet, that are closely spaced from each other.
- the burner outlet and the overall arrangement of the gas outlet openings designed as quarter circular nozzles are arranged concentrically and that too due to the large number of gas outlet openings or nozzles a completely surrounding the flame of the burner Gas jacket flow is generated, which is the emergence suppressed by ring vortices.
- a burner for performing the Shown method according to the invention acts a swirl burner with a premixed one Fuel gas / air mixture 1 supplied via a burner tube 2 becomes.
- This burner tube ends at a swirl cabinet 3, which is rotationally symmetrical and at its Has outer circumferential inclined guide vanes 4.
- These guide vanes have an inclination of approximately 30 °, whereby the outflowing fuel gas / air mixture a Distraction and thus a swirl.
- On the Outside 6 of the swirl cabinet that is from the Combustion gas / air mixture escaping from the burner ignites and forms a flame 12 which in one in FIG burner chamber, not shown, occurs.
- the flame 12 of the burner is covered by a jacket out Gas flows around.
- This jacket is caused by a gas flow 8 caused by an annular channel 7 parallel to Burner tube 2 is passed through the burner and exits the burner at an annular gap 9 which surrounds the swirl cabinet 3 closely spaced.
- the flow velocity from the annular gap 9 escaping gas jacket flow is due to the quarter circle nozzles 10 accelerated so far that the speed is significantly higher in the direction of the axis 11 than that towards the flame of the burning fuel gas / air mixture behind the swirl cupboard 3, whereby in the area between the one burning in a flame Fuel gas / air mixture and the closely surrounding it Gas jacket flow a boundary layer acceleration of the burning fuel gas / air mixture takes place.
- a boundary layer acceleration of the burning fuel gas / air mixture takes place.
- coherent Ring vortex structures comes through one rapid reaction of the fuel contained in them flame / pressure vibrations due to in-phase energy supply stimulate and reinforce.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
- Gas Burners (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19526369 | 1995-07-20 | ||
DE19526369A DE19526369A1 (de) | 1995-07-20 | 1995-07-20 | Verfahren und Vorrichtung zur Unterdrückung von Flammen-/Druckschwingungen bei einer Feuerung |
DE19542681A DE19542681A1 (de) | 1995-07-20 | 1995-11-16 | Verfahren und Vorrichtung zur Unterdrückung von Flammen-/Druckschwingungen bei einer Feuerung |
DE19542681 | 1995-11-16 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0754908A2 EP0754908A2 (de) | 1997-01-22 |
EP0754908A3 EP0754908A3 (de) | 1998-01-21 |
EP0754908B1 EP0754908B1 (de) | 1998-09-09 |
EP0754908B2 true EP0754908B2 (de) | 2001-04-18 |
Family
ID=26016953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96109647A Expired - Lifetime EP0754908B2 (de) | 1995-07-20 | 1996-06-15 | Verfahren und Vorrichtung zur Unterdrückung von Flammen-/Druckschwingungen bei einer Feuerung |
Country Status (7)
Country | Link |
---|---|
US (1) | US5758587A (ru) |
EP (1) | EP0754908B2 (ru) |
JP (1) | JP3755934B2 (ru) |
CN (1) | CN1146543A (ru) |
AT (1) | ATE170968T1 (ru) |
CZ (1) | CZ202696A3 (ru) |
IN (1) | IN189365B (ru) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0931979A1 (de) * | 1998-01-23 | 1999-07-28 | DVGW Deutscher Verein des Gas- und Wasserfaches -Technisch-wissenschaftliche Vereinigung- | Vorrichtung zur Unterdrückung von Flammen-/Druckschwingungen bei einer Feuerung insbesondere einer Gasturbine |
WO1999063276A1 (de) * | 1998-06-04 | 1999-12-09 | Siemens Aktiengesellschaft | Brennstoffstrahldüse und verfahren zur eindüsung eines brennstoffstrahles |
EP0985877A1 (de) * | 1998-09-10 | 2000-03-15 | Abb Research Ltd. | Vorrichtung und Verfahren zur Minimierung thermoakustischer Schwingungen in Gasturbinenbrennkammern |
EP0987491B1 (de) * | 1998-09-16 | 2005-07-20 | ALSTOM Technology Ltd | Verfahren zur Verhinderung von Strömungsinstabilitäten in einem Brenner |
EP1001214B1 (de) * | 1998-11-09 | 2004-09-15 | ALSTOM Technology Ltd | Brenner |
DE10000415A1 (de) | 2000-01-07 | 2001-09-06 | Alstom Power Schweiz Ag Baden | Verfahren und Vorrichtung zur Unterdrückung von Strömungswirbeln innerhalb einer Strömungskraftmaschine |
DE10004475C2 (de) * | 2000-02-02 | 2002-08-22 | Bosch Gmbh Robert | Drallbrenner mit einem Drallkörper als Brennerelement in einer Brennkammer |
US6652265B2 (en) | 2000-12-06 | 2003-11-25 | North American Manufacturing Company | Burner apparatus and method |
ATE306050T1 (de) * | 2001-01-04 | 2005-10-15 | Haldor Topsoe As | Drallbrenner |
GB2375601A (en) | 2001-05-18 | 2002-11-20 | Siemens Ag | Burner apparatus for reducing combustion vibrations |
US6929469B2 (en) * | 2002-02-28 | 2005-08-16 | North American Manufacturing Company | Burner apparatus |
EP1400752B1 (en) * | 2002-09-20 | 2008-08-06 | Siemens Aktiengesellschaft | Premixed burner with profiled air mass stream, gas turbine and process for burning fuel in air |
US7513115B2 (en) * | 2005-05-23 | 2009-04-07 | Power Systems Mfg., Llc | Flashback suppression system for a gas turbine combustor |
FR2925657B1 (fr) * | 2007-12-19 | 2010-01-29 | Mer Joseph Le | Dispositif et procede pour stabiliser la pression et le debit d'un melange gazeux alimentant un bruleur cylindrique a combustion de surface |
DE102008006607B4 (de) | 2008-01-30 | 2011-03-03 | Ibu-Tec Advanced Materials Ag | Verfahren zur Herstellung feinteiliger Partikel |
US9121609B2 (en) * | 2008-10-14 | 2015-09-01 | General Electric Company | Method and apparatus for introducing diluent flow into a combustor |
US8474265B2 (en) * | 2009-07-29 | 2013-07-02 | General Electric Company | Fuel nozzle for a turbine combustor, and methods of forming same |
US8708696B2 (en) * | 2010-01-05 | 2014-04-29 | Massachusetts Institute Of Technology | Swirl-counter-swirl microjets for thermoacoustic instability suppression |
DE102011011207A1 (de) * | 2011-02-14 | 2012-08-16 | Air Liquide Deutschland Gmbh | Brenner zum gleichmäßigen Erwärmen eines langen Ofens |
MX370842B (es) * | 2013-06-17 | 2020-01-08 | Schlumberger Technology Bv | Montaje de quemador para encender gases de bajo contenido calorifico. |
GB2524167A (en) * | 2014-02-12 | 2015-09-16 | Breen Energy Solutions | Method of co-firing coal or oil with a gaseous fuel in a furnace |
US10767900B2 (en) | 2015-05-14 | 2020-09-08 | Lochinvar, Llc | Burner with flow distribution member |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4231788A1 (de) † | 1992-09-23 | 1994-03-24 | Koerting Ag | Brenner für flüssige oder gasförmige Brennstoffe |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2360548A (en) * | 1944-10-17 | Combustion method | ||
US1258654A (en) * | 1915-07-19 | 1918-03-12 | Railway Materials Company | Apparatus for burning pulverized fuel. |
US1950044A (en) * | 1931-05-18 | 1934-03-06 | Surface Combustion Corp | Method of and apparatus for producing stable luminous flame combustion |
US2138998A (en) * | 1936-06-24 | 1938-12-06 | John P Brosius | Burner unit |
US3632313A (en) * | 1969-04-17 | 1972-01-04 | Du Pont | Method of heating oxygen-containing gases for the production of titanium dioxide pigment |
US3681003A (en) * | 1970-04-13 | 1972-08-01 | Kuibyshevsky Vni Skogo I Nefte | Gas burner |
US4162890A (en) * | 1977-05-02 | 1979-07-31 | Bloom Engineering Company, Inc. | Combustion apparatus |
JPS5819929B2 (ja) * | 1978-07-11 | 1983-04-20 | 新日本製鐵株式会社 | 低NO↓xバ−ナ− |
SU1058391A1 (ru) * | 1980-08-18 | 1984-11-15 | Научно-производственное объединение по технологии машиностроения | Способ сжигани газообразного топлива и горелка дл его осуществлени |
DE3331989A1 (de) * | 1983-09-05 | 1985-04-04 | L. & C. Steinmüller GmbH, 5270 Gummersbach | Verfahren zur verminderung der no(pfeil abwaerts)x(pfeil abwaerts)-emission bei der verbrennung von stickstoffhaltigen brennstoffen |
CN85100050B (zh) * | 1985-04-01 | 1986-06-10 | 清华大学 | 一种强化型同向射流火焰稳定方法及其燃烧器 |
FR2581444B1 (fr) * | 1985-05-03 | 1988-11-10 | Charbonnages De France | Procede pour la combustion de combustibles fluides et bruleur a turbulence adapte a sa mise en oeuvre |
DE3636787A1 (de) * | 1986-10-29 | 1988-05-19 | Man Technologie Gmbh | Brenner mit einer oelzerstaeubervorrichtung |
CH682009A5 (ru) * | 1990-11-02 | 1993-06-30 | Asea Brown Boveri | |
US5199355A (en) * | 1991-08-23 | 1993-04-06 | The Babcock & Wilcox Company | Low nox short flame burner |
US5209656A (en) * | 1991-08-29 | 1993-05-11 | Praxair Technology, Inc. | Combustion system for high velocity gas injection |
JPH05157239A (ja) * | 1991-12-04 | 1993-06-22 | Hitachi Ltd | ガスタービン用燃焼器 |
US5263849A (en) * | 1991-12-20 | 1993-11-23 | Hauck Manufacturing Company | High velocity burner, system and method |
JP3197103B2 (ja) * | 1993-03-08 | 2001-08-13 | 三菱重工業株式会社 | 予混合気の燃焼方法 |
JP3272447B2 (ja) * | 1993-03-10 | 2002-04-08 | 三菱重工業株式会社 | ガス燃料用バーナ |
DE4339094A1 (de) * | 1993-11-16 | 1995-05-18 | Abb Management Ag | Verfahren zur Dämpfung von thermoakustischen Schwingungen sowie Vorrichtung zur Durchführung des Verfahrens |
US5567141A (en) * | 1994-12-30 | 1996-10-22 | Combustion Tec, Inc. | Oxy-liquid fuel combustion process and apparatus |
-
1996
- 1996-06-15 AT AT96109647T patent/ATE170968T1/de not_active IP Right Cessation
- 1996-06-15 EP EP96109647A patent/EP0754908B2/de not_active Expired - Lifetime
- 1996-07-08 CZ CZ962026A patent/CZ202696A3/cs unknown
- 1996-07-10 IN IN1255CA1996 patent/IN189365B/en unknown
- 1996-07-17 US US08/682,230 patent/US5758587A/en not_active Expired - Fee Related
- 1996-07-19 CN CN96110270.5A patent/CN1146543A/zh active Pending
- 1996-07-19 JP JP18982196A patent/JP3755934B2/ja not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4231788A1 (de) † | 1992-09-23 | 1994-03-24 | Koerting Ag | Brenner für flüssige oder gasförmige Brennstoffe |
Also Published As
Publication number | Publication date |
---|---|
JPH09178113A (ja) | 1997-07-11 |
US5758587A (en) | 1998-06-02 |
ATE170968T1 (de) | 1998-09-15 |
EP0754908B1 (de) | 1998-09-09 |
JP3755934B2 (ja) | 2006-03-15 |
CZ202696A3 (en) | 1997-02-12 |
EP0754908A3 (de) | 1998-01-21 |
CN1146543A (zh) | 1997-04-02 |
EP0754908A2 (de) | 1997-01-22 |
IN189365B (ru) | 2003-02-15 |
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