EP1855054A2 - Procéder pour alimenter un brûleur a prémélange an combustible - Google Patents

Procéder pour alimenter un brûleur a prémélange an combustible Download PDF

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Publication number
EP1855054A2
EP1855054A2 EP07113855A EP07113855A EP1855054A2 EP 1855054 A2 EP1855054 A2 EP 1855054A2 EP 07113855 A EP07113855 A EP 07113855A EP 07113855 A EP07113855 A EP 07113855A EP 1855054 A2 EP1855054 A2 EP 1855054A2
Authority
EP
European Patent Office
Prior art keywords
premix
burner
gas
region
supply
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
EP07113855A
Other languages
German (de)
English (en)
Other versions
EP1855054A3 (fr
EP1855054B1 (fr
Inventor
Adnan Eroglu
Peter Stuber
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.)
Ansaldo Energia IP UK Ltd
Original Assignee
Alstom Technology 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 Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP1855054A2 publication Critical patent/EP1855054A2/fr
Publication of EP1855054A3 publication Critical patent/EP1855054A3/fr
Application granted granted Critical
Publication of EP1855054B1 publication Critical patent/EP1855054B1/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
    • 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
    • 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

Definitions

  • the invention relates to a device for supplying fuel to a premix burner having at least one burner shell at least partially delimiting an axially extending premix burner space for operating a gas turbine having a premix gas supply directed into the premix burner space above the burner cup, the premix gas being mixed with combustion air and downstream, is ignited outside the premix burner.
  • Premix burners of the aforementioned type are well known for operating gas turbine plants and have different premix burner geometries. So is in the EP 0 321 809 B1 a cone-shaped premix burner consisting of several burner shells, a so-called double-cone burner, whose burner shells are composed in such a way that tangential air inlet slots for the combustion air are formed along the burner axis. At the inflow edges of the burner shells formed thereby are provided outlet openings for the premix gas, which are distributed in the direction of the burner axis. The injection of the Premixgases through the outlet openings along the inflow edges of the burner bowls leads due to the Brennerschalengeometrie in conjunction with the Brennungszu Kunststoff to a swirling mixing of the premixing gas and the combustion air supply.
  • premix burner geometry is in the WO 93/17279 shown, in which the premix burner is formed with an additional conical inner body. Also in this case, the premix gas is fed into the premix burner via respective exit openings arranged along the axially extending air inlet slots, where the premix gas is mixed with combustion air and ignited downstream within the combustion chamber.
  • the emission values, the extinguishing behavior of the flame forming in the combustion chamber, the flame backflow behavior and the flame stability can be decisively influenced by a suitable choice of the abovementioned parameters.
  • premix burners With the currently known premix burners, it is nearly impossible to use the premix burner with different types of fuel, such as liquid or gaseous fuel to operate, especially since the usually arranged centrally in the burner axis burner lance for supplying pilot gas, which is required as mentioned above for starting the gas turbine and for the lower load range, is located in close proximity to the central liquid fuel nozzle , Unintended ignition interactions between the two fuel outlets can not be excluded.
  • fuel such as liquid or gaseous fuel
  • the two writings DE-A1-44 46 945 and EP-A1-0 592 717 disclose gas-powered premix burners in which combustion air is introduced at least approximately tangentially into the pre-mixing chamber of the burner. Fuel is injected via a plurality of nozzles arranged in the longitudinal direction of the premixing chamber and mixed with the combustion air. The nozzles are divided into at least two groups with different fuel supply.
  • the invention has for its object to provide a device for supplying fuel to a premix burner according to the preamble of claim 1 such that the above-mentioned prior art disadvantages should be avoided.
  • it is necessary to take measures on the premix burner, so that an optimized adaptation of the premix burner behavior in the entire load range of the gas turbine is possible. This should in particular be done without great technical and design effort and be feasible with only a small cost.
  • the idea underlying the invention is the axial stepped supply of premix gas along the flanks of the burner shells by the burner shells are divided into at least two axially successively arranged areas, which are each supplied via separated Premixgaszu effeten.
  • the separate areas along the burner shells are arranged axially one behind the other in the direction of flow of the premix burner, wherein it has been recognized according to the invention that more than 60% of the total premix gas supply is to be made via the upstream first region for starting up the gas turbine, and this for the further startup of the load Gas turbine to full load a gradual or continuous redistribution of Premixgaszu Entry on the downstream of the first area adjacent areas takes place.
  • FIG. 1 shows a schematic representation of a longitudinal section through a cone-shaped premix burner.
  • the premix burner has cone-shaped burner shells 1, 2, along which are provided in the axial direction to the burner longitudinal axis A outlet openings 3, can be fed by the premix gas into the interior of the premix burner.
  • the burner shells 1, 2 are subdivided into two differently separated regions S1, S2, which are supplied with premix gas by different supply lines 4, 5.
  • supply air is guided into the interior of the premix burner by air inlet slots, not shown in FIG. 1, which mixes with the premix gas 6 to form a fuel air mixture.
  • a liquid fuel atomization direction 7 can be provided in the center of the premix burner, which allows mixing operation or switching from gaseous fuel to liquid fuel.
  • the supply of liquid fuel takes place with the aid of a known atomizing nozzle, the a cone-shaped sputtering cloud is created within the premix burner.
  • the spreading liquid fuel cloud is surrounded by a protective air jacket.
  • a pedestal that is to ignite the premix burner is not made as usual in the prior art, a pedestal, but in the embodiment illustrated two-stage Vormischbrennerica each area of the burner shell is supplied with a Premixgaszussel which is arranged upstream within the premix burner. In the exemplary embodiment, this is the area stage 1, which is operated for starting and for operating the premix burner in the low load range with more than 60% of the total Premixgaszu exit.
  • FIG. 2 shows an overview diagram from which the percentage distribution of the premix gas distribution between area S1 and area S2 can be seen.
  • the fields entered in black correspond to the portion of the premix gas exiting via region 1, the brighter fields in each case to the premix gas fraction which reaches the interior of the burner via region S2 of the premix burner.
  • the lion's share ie, more than 90%
  • the proportion of premix gas exiting via region 2 increases slightly.
  • both areas S1 and S2 are supplied with premix gas in approximately equal parts.
  • a conical premix burner is provided, which has two regions S1 and S2, via which premix gas enters the interior of the premix burner separately.
  • a main control valve 9 is provided in a common supply line 8 is supplied via the premix to the premix burner.
  • the direct inflow of premix gas to the area S1 of the premix burner can be regulated.
  • a crossing point 10 is provided in the supply line between the main control valve 9 and the outlet region S1 of the premix burner, at which a portion of the premix gas is discharged into a branch line 11.
  • a further control unit in the form of a spring-loaded pressure relief valve 12 is provided, which will be described in more detail below with reference to Figure 4.
  • the area S1 of the premix burner is supplied with premix gas.
  • the gas pressure within the supply line which supplies the region S1 with premix gas as well as also in the branch line 11 is not yet able to open the spring-loaded overpressure valve. Only a small proportion of premix gas passes via the bypass line 13 to the area S2 of the premix burner and exits there into the interior of the premix burner. This corresponds to the state when starting the gas turbine or when igniting the premix burner.
  • the prevailing in the branch line 11 Premixgastik increases, which is able to open the spring-loaded throttle valve 12 continuously, whereby an increasing proportion of passing through the main control valve 9 premix gas flows through the pressure relief valve 12 into the area S2. If the supply gas pressure continues to increase, the overpressure valve 12 opens completely, resulting in a large Share of the premix gas in the range S2 of the premix burner can pass.
  • the leads and adjusting the behavior of the pressure relief valve 13 it is possible to optimize the behavior of the premix burner in terms of emission and vibration behavior.
  • the pressure relief valve 12 has a conically shaped piston 15, the spring-loaded by a spring 16 gas-tight a counter-contour 17 rests. Now, if the piston 15 by means of gas pressure (see arrow on the left side of the throttle valve) pressurized, so the pressure acting on the piston 15 gas pressure, the spring 16 against a stop 18 can push together. This opens a gap between the piston 15 and the mating contour 17, whereby gas can pass through the pressure relief valve to the right.
  • the gas pressure-dependent flow rate of the premix gas by the pressure relief valve 12 is set individually.
  • a number of disadvantages are associated with the device according to the invention for supplying fuel to a premix burner:
  • the graduated premix gas outlet opening in the premix burner allows it to be used in significantly larger range limits than only single-stage premix burners.
  • control unit designed as a pressure relief valve only a single control unit is required to operate the premix burner.
  • the entire device is structurally simple and inexpensive to produce.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
EP07113855.6A 2000-10-05 2001-10-03 Procéder pour alimenter un brûleur a prémélange an combustible Expired - Lifetime EP1855054B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10049205A DE10049205A1 (de) 2000-10-05 2000-10-05 Verfahren und Vorrichtung zur Brennstoffversorgung eines Vormischbrenners
EP01970078A EP1334309B1 (fr) 2000-10-05 2001-10-03 Procede pour alimenter un bruleur a premelange en combustible

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP01970078A Division EP1334309B1 (fr) 2000-10-05 2001-10-03 Procede pour alimenter un bruleur a premelange en combustible

Publications (3)

Publication Number Publication Date
EP1855054A2 true EP1855054A2 (fr) 2007-11-14
EP1855054A3 EP1855054A3 (fr) 2008-04-09
EP1855054B1 EP1855054B1 (fr) 2016-08-17

Family

ID=7658698

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01970078A Expired - Lifetime EP1334309B1 (fr) 2000-10-05 2001-10-03 Procede pour alimenter un bruleur a premelange en combustible
EP07113855.6A Expired - Lifetime EP1855054B1 (fr) 2000-10-05 2001-10-03 Procéder pour alimenter un brûleur a prémélange an combustible

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP01970078A Expired - Lifetime EP1334309B1 (fr) 2000-10-05 2001-10-03 Procede pour alimenter un bruleur a premelange en combustible

Country Status (7)

Country Link
US (1) US7003960B2 (fr)
EP (2) EP1334309B1 (fr)
JP (1) JP4143401B2 (fr)
CN (1) CN1236227C (fr)
AU (1) AU2001290191A1 (fr)
DE (2) DE10049205A1 (fr)
WO (1) WO2002029318A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101846319A (zh) * 2010-05-26 2010-09-29 清华大学 一种弱旋滞止气体燃烧器

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10049203A1 (de) * 2000-10-05 2002-05-23 Alstom Switzerland Ltd Verfahren zur Brennstoffeinleitung in einen Vormischbrenner
DE10051221A1 (de) * 2000-10-16 2002-07-11 Alstom Switzerland Ltd Brenner mit gestufter Brennstoff-Eindüsung
EP1510755B1 (fr) * 2003-09-01 2016-09-28 General Electric Technology GmbH Brûleur avec lance et alimentation étagée en carburant
DE102004002631A1 (de) * 2004-01-19 2005-08-11 Alstom Technology Ltd Verfahren zum Betreiben einer Gasturbinen-Brennkammer
CN1942710A (zh) * 2004-02-12 2007-04-04 阿尔斯通技术有限公司 用于操作燃烧室的预混和燃烧器装置和操作燃烧室的方法
ES2352679T3 (es) 2005-06-17 2011-02-22 Alstom Technology Ltd Quemador para combustión de premezcla.
EP1926936A1 (fr) * 2005-09-05 2008-06-04 Siemens Aktiengesellschaft Ensemble de bruleurs pour une chambre de combustion, chambre de combustion correspondante et procede pour bruler un combustible
DE102006015529A1 (de) * 2006-03-31 2007-10-04 Alstom Technology Ltd. Brennersystem mit gestufter Brennstoff-Eindüsung
US8147121B2 (en) * 2008-07-09 2012-04-03 General Electric Company Pre-mixing apparatus for a turbine engine
EP2208927B1 (fr) 2009-01-15 2016-03-23 Alstom Technology Ltd Brûleur d'une turbine à gaz
EP2348256A1 (fr) * 2010-01-26 2011-07-27 Alstom Technology Ltd Procédé de fonctionnement d'une turbine à gaz et turbine à gaz
CN109340752B (zh) * 2018-10-09 2019-09-03 新中天环保股份有限公司 一种窑头多功能燃烧器
US20240027069A1 (en) * 2020-03-31 2024-01-25 Mitsubishi Heavy Industries, Ltd. Combustor for gas turbine and gas turbine
US11774093B2 (en) 2020-04-08 2023-10-03 General Electric Company Burner cooling structures

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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
EP0592717A1 (fr) * 1992-10-16 1994-04-20 Asea Brown Boveri Ag Brûleur opérant au gaz du type à prémélange
DE4446945A1 (de) * 1994-12-28 1996-07-04 Abb Management Ag Gasbetriebener Vormischbrenner
EP0918190A1 (fr) * 1997-11-21 1999-05-26 Abb Research Ltd. Brûleur pour la mise en oeuvre d'un générateur de chaleur

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DE69111614T2 (de) 1990-10-23 1995-12-21 Rolls Royce Plc Gasturbinenbrennkammer und deren arbeitsweise.
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JP4331406B2 (ja) * 1998-09-10 2009-09-16 シーメンス アクチエンゲゼルシヤフト バーナの運転方法およびバーナ装置
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AU2001272682A1 (en) * 2000-06-15 2001-12-24 Alstom Power N.V. Method for operating a burner and burner with stepped premix gas injection
DE10049203A1 (de) * 2000-10-05 2002-05-23 Alstom Switzerland Ltd Verfahren zur Brennstoffeinleitung in einen Vormischbrenner
DE10056124A1 (de) * 2000-11-13 2002-05-23 Alstom Switzerland Ltd Brennersystem mit gestufter Brennstoff-Eindüsung und Verfahren zum Betrieb
DE10061526A1 (de) * 2000-12-11 2002-06-20 Alstom Switzerland Ltd Vormischbrenneranordnung zum Betrieb einer Brennkammer
DE10064259B4 (de) * 2000-12-22 2012-02-02 Alstom Technology Ltd. Brenner mit hoher Flammenstabilität
EP1262714A1 (fr) * 2001-06-01 2002-12-04 ALSTOM (Switzerland) Ltd Brûleur avec recirculation des gaz de combustion

Patent Citations (4)

* Cited by examiner, † Cited by third party
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
EP0592717A1 (fr) * 1992-10-16 1994-04-20 Asea Brown Boveri Ag Brûleur opérant au gaz du type à prémélange
DE4446945A1 (de) * 1994-12-28 1996-07-04 Abb Management Ag Gasbetriebener Vormischbrenner
EP0918190A1 (fr) * 1997-11-21 1999-05-26 Abb Research Ltd. Brûleur pour la mise en oeuvre d'un générateur de chaleur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101846319A (zh) * 2010-05-26 2010-09-29 清华大学 一种弱旋滞止气体燃烧器
CN101846319B (zh) * 2010-05-26 2012-02-08 清华大学 一种弱旋滞止气体燃烧器

Also Published As

Publication number Publication date
WO2002029318A1 (fr) 2002-04-11
EP1855054A3 (fr) 2008-04-09
US20040029058A1 (en) 2004-02-12
JP4143401B2 (ja) 2008-09-03
AU2001290191A1 (en) 2002-04-15
EP1334309B1 (fr) 2007-09-26
EP1334309A1 (fr) 2003-08-13
DE10049205A1 (de) 2002-05-23
CN1468352A (zh) 2004-01-14
JP2004510918A (ja) 2004-04-08
EP1855054B1 (fr) 2016-08-17
US7003960B2 (en) 2006-02-28
CN1236227C (zh) 2006-01-11
DE50113065D1 (de) 2007-11-08

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