EP1279898A2 - Brûleur à prémélange offrant une haute stabilité de flamme - Google Patents

Brûleur à prémélange offrant une haute stabilité de flamme Download PDF

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Publication number
EP1279898A2
EP1279898A2 EP02405615A EP02405615A EP1279898A2 EP 1279898 A2 EP1279898 A2 EP 1279898A2 EP 02405615 A EP02405615 A EP 02405615A EP 02405615 A EP02405615 A EP 02405615A EP 1279898 A2 EP1279898 A2 EP 1279898A2
Authority
EP
European Patent Office
Prior art keywords
premix burner
burner according
net
mixing section
premix
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02405615A
Other languages
German (de)
English (en)
Other versions
EP1279898B1 (fr
EP1279898A3 (fr
Inventor
Timothy Griffin
Peter Jansohn
Thomas Ruck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Technology GmbH
Original Assignee
Alstom Schweiz 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
Priority claimed from DE10136313A external-priority patent/DE10136313A1/de
Priority claimed from DE10164097A external-priority patent/DE10164097A1/de
Application filed by Alstom Schweiz AG filed Critical Alstom Schweiz AG
Publication of EP1279898A2 publication Critical patent/EP1279898A2/fr
Publication of EP1279898A3 publication Critical patent/EP1279898A3/fr
Application granted granted Critical
Publication of EP1279898B1 publication Critical patent/EP1279898B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
    • F23D17/002—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel gaseous or liquid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • 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
    • F23D11/40—Mixing tubes or chambers; Burner heads
    • F23D11/402—Mixing chambers downstream of the nozzle
    • 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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/74—Preventing flame lift-off
    • 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
    • F23M20/00—Details of combustion chambers, not otherwise provided for, e.g. means for storing heat from flames
    • F23M20/005—Noise absorbing means
    • 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
    • F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/04—Air inlet arrangements
    • F23R3/10—Air inlet arrangements for primary air
    • F23R3/12—Air inlet arrangements for primary air inducing a vortex
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
    • F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
    • F23R3/36—Supply of different fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/07002—Premix burners with air inlet slots obtained between offset curved wall surfaces, e.g. double cone burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00014—Reducing thermo-acoustic vibrations by passive means, e.g. by Helmholtz resonators

Definitions

  • burners designed in this way enable operation with very low pollutant emissions, they often operate dangerously close to the extinguishing limit of the flame: usual flame temperatures with the lean premixing flames of such burners are around 1700K to 1750K. Under certain operating conditions, the extinguishing limit of the flames can be reached at 1650K. This value is comparatively high. This is due to the low fuel consumption of the fuel-air mixture. This reduces the flame speed, which ultimately results in a spatially extended and therefore unstable flame front.
  • thermoacoustic vibrations frequently occur in combustion chambers of gas turbines, which can lead to undesirable effects, such as high mechanical stress, increased NO x emissions due to inhomogeneous combustion and even extinguishing the flame. Because in modern gas turbines for the purpose of achieving low NO x emissions, an increasing proportion of air through the burners themselves is conducted, the sound-absorbing effect of the cooling air flowing into the combustion chamber is reduced, which is why the problems associated with undesirable vibrations occur increasingly in such modern gas turbines.
  • the net-like structure consists of a porous body made of a foamed material integrated into the burner cavity.
  • the network-like structure is equipped with a catalytically active surface to support the combustion.
  • a network-like structure (201) is now arranged in a downstream region of the burner within the mixing section (200) of the combustion air with the fuel or fuels.
  • This network structure (201) consists of at least one wire mesh (202) spanning the flow cross section (203).
  • the wire mesh or fabrics (202) have a mesh size in a range from 250 ⁇ m to 1000 ⁇ m and a wire thickness from 100 ⁇ m to 500 ⁇ m. In order not to adversely affect the flow conditions, these parameters of the wire mesh (202) must be matched to one another in such a way that the largest possible open screen area remains, preferably in the order of magnitude of over 90%. If several wire meshes (202) spanning the flow cross section (203) are arranged, their spacing should correspond at least to the wire thickness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP02405615A 2001-07-26 2002-07-18 Brûleur à prémélange offrant une haute stabilité de flamme Expired - Lifetime EP1279898B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10136313A DE10136313A1 (de) 2001-07-26 2001-07-26 Vormischbrenner mit hoher Flammenstabilität
DE10136313 2001-07-26
DE10164097A DE10164097A1 (de) 2001-12-24 2001-12-24 Vormischbrenner mit hoher Flammenstabilität
DE10164097 2001-12-24

Publications (3)

Publication Number Publication Date
EP1279898A2 true EP1279898A2 (fr) 2003-01-29
EP1279898A3 EP1279898A3 (fr) 2003-04-16
EP1279898B1 EP1279898B1 (fr) 2008-09-10

Family

ID=26009779

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02405615A Expired - Lifetime EP1279898B1 (fr) 2001-07-26 2002-07-18 Brûleur à prémélange offrant une haute stabilité de flamme

Country Status (3)

Country Link
US (1) US6834504B2 (fr)
EP (1) EP1279898B1 (fr)
DE (1) DE50212753D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1614963A1 (fr) 2004-07-09 2006-01-11 Siemens Aktiengesellschaft Système de combustion à prémélange et procédé

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DE10049203A1 (de) * 2000-10-05 2002-05-23 Alstom Switzerland Ltd Verfahren zur Brennstoffeinleitung in einen Vormischbrenner
DE10332860A1 (de) * 2003-07-18 2005-02-10 Linde Ag Gasbrenner
US20050076644A1 (en) * 2003-10-08 2005-04-14 Hardwicke Canan Uslu Quiet combustor for a gas turbine engine
JP4324078B2 (ja) * 2003-12-18 2009-09-02 キヤノン株式会社 炭素を含むファイバー、炭素を含むファイバーを用いた基板、電子放出素子、該電子放出素子を用いた電子源、該電子源を用いた表示パネル、及び、該表示パネルを用いた情報表示再生装置、並びに、それらの製造方法
NZ534091A (en) * 2004-07-13 2007-06-29 Fisher & Paykel Appliances Ltd Horizontal cooking surface with rotation causing vertical motion via slots and ball slides
CN101069039B (zh) * 2004-11-30 2011-10-19 阿尔斯托姆科技有限公司 用于在预混合燃烧器中燃烧氢气的方法和设备
US7841182B2 (en) * 2006-08-01 2010-11-30 Siemens Energy, Inc. Micro-combustor for gas turbine engine
EP1898153B1 (fr) * 2006-09-06 2009-11-25 Electrolux Home Products Corporation N.V. Brûleur pour cuisinière
US8230673B2 (en) * 2006-12-04 2012-07-31 Firestar Engineering, Llc Rocket engine injectorhead with flashback barrier
US8572946B2 (en) 2006-12-04 2013-11-05 Firestar Engineering, Llc Microfluidic flame barrier
WO2008123895A2 (fr) * 2006-12-04 2008-10-16 Firestar Engineering, Llc Tête d'injecteur de gaz propulseur à allumage intégré avec barrière de rentrée de flamme
US20080280238A1 (en) * 2007-05-07 2008-11-13 Caterpillar Inc. Low swirl injector and method for low-nox combustor
US20090133788A1 (en) * 2007-11-09 2009-05-28 Firestar Engineering, Llc Nitrous oxide fuel blend monopropellants
EP2107313A1 (fr) * 2008-04-01 2009-10-07 Siemens Aktiengesellschaft Alimentation étagée de combustible dans un brûleur
WO2011005875A1 (fr) * 2009-07-07 2011-01-13 Firestar Engineering Llc Dispositif d'arrêt d'onde de détonation
EP2526277A4 (fr) * 2010-01-20 2014-10-29 Firestar Engineering Llc Chambre de combustion isolee
WO2011152912A2 (fr) * 2010-03-12 2011-12-08 Firestar Engineering, Llc Tuyère de fusée à chambre de combustion supersonique
US8943830B2 (en) 2012-02-16 2015-02-03 Solar Turbines Inc. Coated porous metallic mat
US20140134551A1 (en) * 2012-04-12 2014-05-15 Massachusetts Institute Of Technology Combustion Instability Suppression System Using Heat Insulating Flameholding Material
US9366432B2 (en) 2012-05-17 2016-06-14 Capstone Turbine Corporation Multistaged lean prevaporizing premixing fuel injector
JP5584260B2 (ja) * 2012-08-08 2014-09-03 日野自動車株式会社 排気浄化装置用バーナー
JP6440433B2 (ja) * 2014-09-29 2018-12-19 川崎重工業株式会社 燃料噴射ノズル、燃料噴射モジュール、及びガスタービン
US11226092B2 (en) * 2016-09-22 2022-01-18 Utilization Technology Development, Nfp Low NOx combustion devices and methods
EP3438540A1 (fr) 2017-07-31 2019-02-06 Siemens Aktiengesellschaft Brûleur comprenant un amortisseur acoustique
CN109210534A (zh) * 2018-08-20 2019-01-15 江苏大学 一种用于可视化研究的微型燃烧器
CN110671700A (zh) * 2019-11-11 2020-01-10 南通江华热动力机械有限公司 一种射吸式焊炬多孔焊嘴
KR102469577B1 (ko) * 2020-12-31 2022-11-21 두산에너빌리티 주식회사 마이크로 믹서 및 이를 포함하는 연소기
US20240263790A1 (en) * 2023-02-02 2024-08-08 Pratt & Whitney Canada Corp. Combustor with fuel and air mixing plenum

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EP0321809A1 (fr) 1987-12-21 1989-06-28 BBC Brown Boveri AG Procédé pour la combustion de combustible liquide dans un brûleur
WO1993017279A1 (fr) 1992-02-26 1993-09-02 United Technologies Corporation Bruleur de gaz a premelange
EP0780629A2 (fr) 1995-12-21 1997-06-25 ABB Research Ltd. Brûleur pour un générateur de chaleur
EP0945677A2 (fr) 1998-03-24 1999-09-29 United Technologies Corporation Injecteur de combustible avec stabilisation de la flamme

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Publication number Priority date Publication date Assignee Title
EP0321809A1 (fr) 1987-12-21 1989-06-28 BBC Brown Boveri AG Procédé pour la combustion de combustible liquide dans un brûleur
WO1993017279A1 (fr) 1992-02-26 1993-09-02 United Technologies Corporation Bruleur de gaz a premelange
EP0780629A2 (fr) 1995-12-21 1997-06-25 ABB Research Ltd. Brûleur pour un générateur de chaleur
EP0945677A2 (fr) 1998-03-24 1999-09-29 United Technologies Corporation Injecteur de combustible avec stabilisation de la flamme

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1614963A1 (fr) 2004-07-09 2006-01-11 Siemens Aktiengesellschaft Système de combustion à prémélange et procédé

Also Published As

Publication number Publication date
DE50212753D1 (de) 2008-10-23
EP1279898B1 (fr) 2008-09-10
US6834504B2 (en) 2004-12-28
EP1279898A3 (fr) 2003-04-16
US20030031972A1 (en) 2003-02-13

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