EP0592717B1 - Brûleur opérant au gaz du type à prémélange - Google Patents

Brûleur opérant au gaz du type à prémélange Download PDF

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Publication number
EP0592717B1
EP0592717B1 EP92117673A EP92117673A EP0592717B1 EP 0592717 B1 EP0592717 B1 EP 0592717B1 EP 92117673 A EP92117673 A EP 92117673A EP 92117673 A EP92117673 A EP 92117673A EP 0592717 B1 EP0592717 B1 EP 0592717B1
Authority
EP
European Patent Office
Prior art keywords
burner
fuel
premixing
nozzles
gas
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
Application number
EP92117673A
Other languages
German (de)
English (en)
Other versions
EP0592717A1 (fr
Inventor
Manfred Dr. Aigner
Robin Mc Millan
Pirmin Schiessel
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.)
ABB Asea Brown Boveri Ltd
ABB AB
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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 ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Priority to EP92117673A priority Critical patent/EP0592717B1/fr
Priority to DE59209209T priority patent/DE59209209D1/de
Priority to US08/120,086 priority patent/US5482457A/en
Priority to JP25813593A priority patent/JP3553995B2/ja
Priority to KR1019930021550A priority patent/KR940009586A/ko
Publication of EP0592717A1 publication Critical patent/EP0592717A1/fr
Application granted granted Critical
Publication of EP0592717B1 publication Critical patent/EP0592717B1/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
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details
    • F23D11/40—Mixing tubes; 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
    • F23D14/02—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
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details
    • F23D14/62—Mixing devices; Mixing tubes
    • 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
    • F23D14/70—Baffles or like flow-disturbing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D17/00—Burners for combustion simultaneously or alternately of gaseous or liquid or pulverulent fuel
    • F23D17/002—Burners for combustion simultaneously or alternately 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 
    • 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
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/007—Mixing tubes, air supply regulation

Definitions

  • the invention relates to a gas-powered premix burner for the combustion chamber, for example a gas turbine which within a pre-mixing space over a plurality Fuel injected from nozzles prior to ignition is intensively mixed with the combustion air, the Nozzles are arranged around a burner axis.
  • premix burners where flame burners can be dispensed with are in the form of double-cone burners known from EP-B1-0 321 809.
  • the invention tries to avoid all these disadvantages. It is based on the task of creating a measure by means of which the combustion chamber can be operated as close as possible to the lean extinguishing limit, ie in the area in which practically no NO x is produced.
  • the burner is operational with a very lean mixture remain, the regulation can be simplified in that that now when loading and unloading the combustion chamber Air number ranges can be traversed with the previous premix combustion with a uniform fuel profile because of their lean extinction limit, as a rule could not be driven through.
  • the schematically shown premix burner is a so-called double-cone burner, such as that used for example is known from EP-B1-0 321 809.
  • Such Burners can, for example, in the dome-shaped conclusion Single combustion chamber or arranged in an annular combustion chamber be.
  • the burner consists essentially of two hollow, conical ones Partial bodies 11, 12 which are nested in the flow direction are. Here are the respective central axes 13, 14 of the two partial bodies offset from one another. The neighboring walls of the two partial bodies form in their Longitudinal extension tangential slots 15 for the combustion air, which in this way in the premixing chamber 21 Inside the burner.
  • the burner is in the example with gaseous fuel operated.
  • Gas inflow openings 17 are provided in the form of nozzles. These nozzles are made up of one manifold per cone 18 supplied, which in turn is fed by the gas supply line 19 becomes.
  • the fuel control takes place via the control valve 20.
  • the mixture formation begins in such a gas operation with the combustion air already in the zone the entry slots 15.
  • the required NO x limit values can be easily fallen below.
  • the stability limit is low due to the low flame temperature.
  • the range between ignitability and extinguishing is relatively narrow for the safe operation of the combustion chamber over the full load range.
  • the additional amount of gas injected causes a premixed enrichment on the axis 10 of the burner.
  • At the burner outlet there is therefore an uneven distribution of fuel over the cross-section acted upon and thus zones with different excess air numbers.
  • the largely independent core flame generated in this way in the area of the burner axis is considerably more stable than the main flame surrounding it and produced with the evenly distributed fuel concentration.
  • NO x accumulation is still lower than with a burner piloted with a diffusion flame.
  • the decisive factor in any case is the improved extinguishing limit without a corresponding increase in NO x .
  • the new measure which in the majority of the operating area guarantees a mode of operation at the extinguishing limit, means that the NO x values of 20 ppm that can be achieved today can certainly be significantly undercut.
  • the invention is also not limited to Premix burner of the double cone type, in which the Mixture enrichment takes place in the burner axis, but it can be used in all combustion chamber zones in which one Flame stabilization through a prevailing air velocity field is produced.
  • the illustrated double-cone burner could also be considered a mixed oil / gas driving style in the tip of the cone still with one lying in the burner axis
  • the fuel can come from this at a certain angle be injected into the hollow cone.
  • the resulting conical Liquid fuel profile is flowing from the tangential Combustion air enclosed. In the axial direction the concentration of fuel continuously as a result of Mixing with the combustion air reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)

Claims (3)

  1. Brûleur de pré-mélange fonctionnant au gaz pour la chambre de combustion par exemple d'une turbine à gaz, pour lequel on mélange vigoureusement, au sein d'un espace de pré-mélange (21), le combustible, injecté par l'intermédiaire d'une pluralité de buses (17), avant l'allumage avec l'air de combustion, les buses étant disposées tout autour d'un axe du brûleur (10), caractérisé en ce que, au sein de l'espace de pré-mélange (21), sont prévues des buses de combustible supplémentaires (23) dans le domaine de l'axe du brûleur (10), que l'on peut alimenter par l'intermédiaire d'une conduite de combustible séparée (24), de sorte qu'en vue d'une influence intentionnelle sur le profil du combustible à la sortie du brûleur de pré-mélange, la concentration de combustible dans le domaine de l'axe du brûleur soit plus grande que la concentration moyenne de combustible dans le plan de sortie (22) du brûleur de pré-mélange.
  2. Brûleur de pré-mélange selon la revendication 1, caractérisé en ce que la conduite de combustible séparée (24) est pourvue d'une vanne de réglage (25) obturable.
  3. Brûleur de pré mélange selon la revendication 1, caractérisé en ce qu'en cas d'utilisation d'un brûleur du type de construction à double cône, qui englobe deux corps partiels (11, 12) creux, coniques et emboítés l'un dans l'autre, ayant des axes médians décalés (13, 14), les buses de brûleur supplémentaires (23) sont disposées dans le domaine de la pointe du cône.
EP92117673A 1992-10-16 1992-10-16 Brûleur opérant au gaz du type à prémélange Expired - Lifetime EP0592717B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP92117673A EP0592717B1 (fr) 1992-10-16 1992-10-16 Brûleur opérant au gaz du type à prémélange
DE59209209T DE59209209D1 (de) 1992-10-16 1992-10-16 Gasbetriebener Vormischbrenner
US08/120,086 US5482457A (en) 1992-10-16 1993-09-13 Gas-operated premixing burner
JP25813593A JP3553995B2 (ja) 1992-10-16 1993-10-15 ガス作動式のプレミックスバーナ
KR1019930021550A KR940009586A (ko) 1992-10-16 1993-10-16 가스 작동 프리믹싱 버너

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92117673A EP0592717B1 (fr) 1992-10-16 1992-10-16 Brûleur opérant au gaz du type à prémélange

Publications (2)

Publication Number Publication Date
EP0592717A1 EP0592717A1 (fr) 1994-04-20
EP0592717B1 true EP0592717B1 (fr) 1998-02-25

Family

ID=8210136

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92117673A Expired - Lifetime EP0592717B1 (fr) 1992-10-16 1992-10-16 Brûleur opérant au gaz du type à prémélange

Country Status (5)

Country Link
US (1) US5482457A (fr)
EP (1) EP0592717B1 (fr)
JP (1) JP3553995B2 (fr)
KR (1) KR940009586A (fr)
DE (1) DE59209209D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8484979B2 (en) 2007-03-15 2013-07-16 Siemens Aktiengesellschaft Burner fuel staging

Families Citing this family (30)

* Cited by examiner, † Cited by third party
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DE4426353A1 (de) * 1994-07-25 1996-02-01 Abb Research Ltd Brenner
DE4441641A1 (de) * 1994-11-23 1996-05-30 Abb Management Ag Brennkammer mit Vormischbrennern
DE4446842B4 (de) * 1994-12-27 2006-08-10 Alstom Verfahren und Vorrichtung zum Zuleiten eines gasförmigen Brennstoffs in einen Vormischbrenner
DE4446945B4 (de) * 1994-12-28 2005-03-17 Alstom Gasbetriebener Vormischbrenner
DE19507763A1 (de) * 1995-03-06 1996-09-12 Siemens Ag Verfahren und Vorrichtung zur Verbrennung eines Brennstoffs in einer Gasturbine
EP0918191B1 (fr) * 1997-11-21 2003-07-02 Alstom Brûleur pour la mise en oeuvre d'un générateur de chaleur
US6176087B1 (en) * 1997-12-15 2001-01-23 United Technologies Corporation Bluff body premixing fuel injector and method for premixing fuel and air
WO2001096785A1 (fr) 2000-06-15 2001-12-20 Alstom (Switzerland) Ltd Procede pour l'exploitation d'un bruleur et bruleur a injection etagee de gaz premelange
DE10029607A1 (de) * 2000-06-15 2001-12-20 Alstom Power Nv Brenner mit gestufter Vormischgas-Eindüsung
DE10049205A1 (de) * 2000-10-05 2002-05-23 Alstom Switzerland Ltd Verfahren und Vorrichtung zur Brennstoffversorgung eines Vormischbrenners
DE10051221A1 (de) * 2000-10-16 2002-07-11 Alstom Switzerland Ltd Brenner mit gestufter Brennstoff-Eindüsung
DE10055408A1 (de) * 2000-11-09 2002-05-23 Alstom Switzerland Ltd Verfahren zur Brenstoffeinspritzung in einen Brenner
DE10064893A1 (de) * 2000-12-23 2002-11-14 Alstom Switzerland Ltd Brenner mit gestufter Brennstoffeindüsung
DE10104150A1 (de) 2001-01-30 2002-09-05 Alstom Switzerland Ltd Brenneranlage und Verfahren zu ihrem Betrieb
DE10108560A1 (de) 2001-02-22 2002-09-05 Alstom Switzerland Ltd Verfahren zum Betrieb einer Ringbrennkammer sowie eine diesbezügliche Ringbrennkammer
DE10164099A1 (de) * 2001-12-24 2003-07-03 Alstom Switzerland Ltd Brenner mit gestufter Brennstoffeinspritzung
CN100543369C (zh) * 2002-08-09 2009-09-23 杰富意钢铁株式会社 管状火焰燃烧炉
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
WO2005095863A1 (fr) * 2004-03-31 2005-10-13 Alstom Technology Ltd Brûleur
CN101243287B (zh) * 2004-12-23 2013-03-27 阿尔斯托姆科技有限公司 具有混合段的预混燃烧器
ATE479054T1 (de) * 2005-03-09 2010-09-15 Alstom Technology Ltd Vormischbrenner zum erzeugen eines zündfähigen brennstoff-luftgemisches
US7402038B2 (en) * 2005-04-22 2008-07-22 The North American Manufacturing Company, Ltd. Combustion method and apparatus
US7832365B2 (en) * 2005-09-07 2010-11-16 Fives North American Combustion, Inc. Submerged combustion vaporizer with low NOx
US20080081301A1 (en) * 2006-10-03 2008-04-03 Hannum Mark C Low NOx combustion
EP2058590B1 (fr) * 2007-11-09 2016-03-23 Alstom Technology Ltd Procédé de fonctionnement d'un brûleur
EP2220438B1 (fr) * 2007-11-27 2019-07-24 Ansaldo Energia Switzerland AG Procédé d'utilisation d'une centrale électrique à cycle combiné avec une installation de turbine à gaz par recours à un deuxième carburant riche en hydrogène
WO2009068424A1 (fr) * 2007-11-27 2009-06-04 Alstom Technology Ltd Procédé et dispositif pour la combustion d'hydrogène dans un brûleur à prémélange
EP2837883B1 (fr) * 2013-08-16 2018-04-04 Ansaldo Energia Switzerland AG Chambre de combustion tubulaire pré-mélangée ayant des aubes ondulées pour le deuxième étage d'une turbine à gaz séquentielle
CN103574606B (zh) * 2013-11-18 2016-01-06 南通宝聚颜料有限公司 一种氢气燃烧装置

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US3180395A (en) * 1962-12-14 1965-04-27 Zink Co John Liquid and gaseous fuel burner assembly producing a fan-shaped flame
US4100733A (en) * 1976-10-04 1978-07-18 United Technologies Corporation Premix combustor
DE2950535A1 (de) * 1979-11-23 1981-06-11 BBC AG Brown, Boveri & Cie., Baden, Aargau Brennkammer einer gasturbine mit vormisch/vorverdampf-elementen
EP0210462B1 (fr) * 1985-07-30 1989-03-15 BBC Brown Boveri AG Chambre de combustion double
US5193995A (en) * 1987-12-21 1993-03-16 Asea Brown Boveri Ltd. Apparatus for premixing-type combustion of liquid fuel
CH674561A5 (fr) * 1987-12-21 1990-06-15 Bbc Brown Boveri & Cie
EP0432153B1 (fr) * 1988-09-02 1994-12-28 American Combustion, Inc. Procede et appareil pour produire une flamme extremement lumineuse
CH679692A5 (fr) * 1989-04-24 1992-03-31 Asea Brown Boveri
CH680946A5 (fr) * 1989-12-19 1992-12-15 Asea Brown Boveri
CH682952A5 (de) * 1991-03-12 1993-12-15 Asea Brown Boveri Brenner für eine Vormischverbrennung eines flüssigen und/oder gasförmigen Brennstoffes.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8484979B2 (en) 2007-03-15 2013-07-16 Siemens Aktiengesellschaft Burner fuel staging

Also Published As

Publication number Publication date
KR940009586A (ko) 1994-05-20
EP0592717A1 (fr) 1994-04-20
US5482457A (en) 1996-01-09
JP3553995B2 (ja) 2004-08-11
JPH06193841A (ja) 1994-07-15
DE59209209D1 (de) 1998-04-02

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