EP0592717A1 - Brûleur opérant au gaz du type à prémélange - Google Patents

Brûleur opérant au gaz du type à prémélange Download PDF

Info

Publication number: EP0592717A1
Authority: EP; European Patent Office
Prior art keywords: burner; fuel; nozzles; premix; gas
Prior art date: 1992-10-16
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

EP92117673A

Other languages

German (de)

English (en)

Other versions

EP0592717B1 (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.)

1992-10-16

Filing date

1992-10-16

Publication date

1994-04-20

1992-10-16 Application filed by ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd

1992-10-16 Priority to EP92117673A priority Critical patent/EP0592717B1/fr

1992-10-16 Priority to DE59209209T priority patent/DE59209209D1/de

1993-09-13 Priority to US08/120,086 priority patent/US5482457A/en

1993-10-15 Priority to JP25813593A priority patent/JP3553995B2/ja

1993-10-16 Priority to KR1019930021550A priority patent/KR940009586A/ko

1994-04-20 Publication of EP0592717A1 publication Critical patent/EP0592717A1/fr

1998-02-25 Application granted granted Critical

1998-02-25 Publication of EP0592717B1 publication Critical patent/EP0592717B1/fr

2012-10-16 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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Images

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-operated premix burner for the combustion chamber, for example of a gas turbine, in which the fuel injected via a plurality of nozzles is intensively mixed with the combustion air prior to ignition within a premixing chamber, the nozzles being arranged around a burner axis.
Combustion chambers for gas turbines based on premix burners are known, for example from EP-B1 29 619.
a premixing / pre-evaporation process with a large excess of air takes place within a number of tubular elements between the injected fuel and the compressor air, before the actual combustion process downstream of one Flame holder takes place. With this measure, the emission values of pollutants from combustion can be significantly reduced.
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.
this is achieved in a premix burner of the type mentioned at the outset in that in order to influence the fuel profile at the burner outlet in a targeted manner, the fuel concentration in the region of the burner axis is greater than the average fuel concentration in the burner outlet plane.
additional fuel nozzles are expediently provided in the area of the burner axis. It makes sense if these additional fuel nozzles can be fed via a separate fuel line in which a shut-off control valve is arranged.
the schematically shown premix burner is a so-called double-cone burner, as is known for example from EP-B1-0 321 809.
Such burners can be arranged, for example, in the dome-shaped end of an individual combustion chamber or in an annular combustion chamber.
the burner essentially consists of two hollow, conical partial bodies 11, 12 which are nested one inside the other in the direction of flow.
the respective central axes 13, 14 of the two partial bodies are offset from one another.
the adjacent walls of the two partial bodies form in their Longitudinal extension of tangential slots 15 for the combustion air which in this way reaches the premixing chamber 21 in the interior of the burner.
the burner is operated with gaseous fuel.
gas inflow openings 17 distributed in the longitudinal direction in the form of nozzles are provided in the region of the tangential slots in the walls of the two partial bodies. These nozzles are supplied for each partial cone from a manifold 18, which in turn is fed by the gas feed line 19.
the fuel control takes place via the control valve 20.
the mixture formation with the combustion air thus begins in the zone of the inlet slots 15.
a fuel concentration that is as homogeneous as possible is established over the applied cross-section.
a defined dome-shaped return flow zone is created at the burner outlet, at the tip of which the ignition takes place.
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 fuel concentration which is as homogeneous as possible is deliberately disrupted in such a way that in the area of the burner axis 10 in the outlet plane 22 of the burner there is a higher fuel concentration which ensures a stable flame.
additional fuel nozzles 23 are arranged in the region of the cone tip, accordingly at one point relatively little combustion air flows into the premixing chamber. They are supplied with gas via a separate fuel line 24. A control valve 25 is arranged in line 24 for fine adjustment of the gas quantity.
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 .
This stabilization aid in the form of the unevenly distributed but premixed fuel distribution can be switched off in operating areas in which it is not necessary by simply shutting off the control valve 25.
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 not limited to the exemplary embodiment shown and described.
the "detuned" fuel profile in the burner outlet level could also be achieved by unevenly dividing the injection nozzles within the burner. Or through different nozzle cross-sections with even division. With all of these measures, the desired "richer" strands can be achieved in the mixture.
the invention is also not restricted to premixing burners of the double-cone type, in which the mixture is enriched in the burner axis, but can be used in all combustion chamber zones in which flame stabilization is generated by a prevailing air velocity field.
the double-cone burner shown could also be equipped with a fuel nozzle for liquid fuel located in the burner axis with regard to a mixed oil / gas mode of operation in the cone tip. From this, the fuel can be injected into the hollow cone at a certain angle. The resulting conical liquid fuel profile is enclosed by the combustion air flowing in tangentially. The concentration of the fuel is continuously reduced in the axial direction due to the mixing with the combustion air.

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)

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 true EP0592717A1 (fr)	1994-04-20
EP0592717B1 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 (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
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
EP0719983A1 (fr) *	1994-12-27	1996-07-03	ABB Management AG	Procédé et dispositif d'alimentation du combustible gazeuse vers un brûleur à prémélange
DE19507763A1 (de) *	1995-03-06	1996-09-12	Siemens Ag	Verfahren und Vorrichtung zur Verbrennung eines Brennstoffs in einer Gasturbine
US5699667A (en) *	1994-12-28	1997-12-23	Asea Brown Boveri Ag	Gas-operated premixing burner for gas turbine
WO2002029318A1 (fr) *	2000-10-05	2002-04-11	Alstom (Switzerland) Ltd	Procede et dispositif pour alimenter un bruleur a melange prealable en combustible
EP1205713A1 (fr) *	2000-11-09	2002-05-15	ALSTOM Power N.V.	Procédé d'injection de combustible dans un brûleur
WO2002052201A1 (fr) *	2000-12-23	2002-07-04	Alstom (Switzerland) Ltd	Bruleur a injection de combustible etagee
US7198483B2 (en)	2001-01-30	2007-04-03	Alstom Technology Ltd.	Burner unit and method for operation thereof

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ATE244380T1 (de) *	1997-11-21	2003-07-15	Alstom	Brenner für den betrieb eines wärmeerzeugers
US6176087B1 (en)	1997-12-15	2001-01-23	United Technologies Corporation	Bluff body premixing fuel injector and method for premixing fuel and air
US6769903B2 (en)	2000-06-15	2004-08-03	Alstom Technology Ltd	Method for operating a burner and burner with stepped premix gas injection
DE10029607A1 (de) *	2000-06-15	2001-12-20	Alstom Power Nv	Brenner mit gestufter Vormischgas-Eindüsung
DE10051221A1 (de) *	2000-10-16	2002-07-11	Alstom Switzerland Ltd	Brenner mit gestufter Brennstoff-Eindüsung
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
CN101793393B (zh) *	2002-08-09	2012-09-05	杰富意钢铁株式会社	管状火焰燃烧炉以及燃烧控制方法
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
EP1828684A1 (fr) *	2004-12-23	2007-09-05	Alstom Technology Ltd	Bruleur de premelange dote d'un parcours de melange
DK1856442T3 (da) *	2005-03-09	2010-12-20	Alstom Technology Ltd	Forblandingsbrænder til frembringelse af en antændelig brændstof-luftblanding
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
EP1970629A1 (fr)	2007-03-15	2008-09-17	Siemens Aktiengesellschaft	Alimentation étagée pour un brûleur
EP2058590B1 (fr) *	2007-11-09	2016-03-23	Alstom Technology Ltd	Procédé de fonctionnement d'un brûleur
CN101910723B (zh) *	2007-11-27	2013-07-24	阿尔斯通技术有限公司	用于在预混燃烧器中燃烧氢气的设备
WO2009068427A1 (fr) *	2007-11-27	2009-06-04	Alstom Technology Ltd	Dispositif et procédé d'utilisation d'une installation de turbine à gaz par recours à un deuxième carburant riche en hydrogène
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4100733A (en) *	1976-10-04	1978-07-18	United Technologies Corporation	Premix combustor
EP0210462A1 (fr) *	1985-07-30	1987-02-04	BBC Brown Boveri AG	Chambre de combustion double
WO1990002907A1 (fr) *	1988-09-02	1990-03-22	American Combustion, Inc.	Procede et appareil pour produire une flamme extremement lumineuse
EP0321809B1 (fr) *	1987-12-21	1991-05-15	BBC Brown Boveri AG	Procédé pour la combustion de combustible liquide dans un brûleur
EP0503319A2 (fr) *	1991-03-12	1992-09-16	Asea Brown Boveri Ag	Brûleur pour une combustion à mélange préalable d'un combustible liquide et/ou gazeux

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3180395A (en) *	1962-12-14	1965-04-27	Zink Co John	Liquid and gaseous fuel burner assembly producing a fan-shaped flame
DE2950535A1 (de) *	1979-11-23	1981-06-11	BBC AG Brown, Boveri & Cie., Baden, Aargau	Brennkammer einer gasturbine mit vormisch/vorverdampf-elementen
US5193995A (en) *	1987-12-21	1993-03-16	Asea Brown Boveri Ltd.	Apparatus for premixing-type combustion of liquid fuel
CH679692A5 (fr) *	1989-04-24	1992-03-31	Asea Brown Boveri
CH680946A5 (fr) *	1989-12-19	1992-12-15	Asea Brown Boveri

1992
- 1992-10-16 DE DE59209209T patent/DE59209209D1/de not_active Expired - Lifetime
- 1992-10-16 EP EP92117673A patent/EP0592717B1/fr not_active Expired - Lifetime
1993
- 1993-09-13 US US08/120,086 patent/US5482457A/en not_active Expired - Lifetime
- 1993-10-15 JP JP25813593A patent/JP3553995B2/ja not_active Expired - Lifetime
- 1993-10-16 KR KR1019930021550A patent/KR940009586A/ko not_active Withdrawn

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4100733A (en) *	1976-10-04	1978-07-18	United Technologies Corporation	Premix combustor
EP0210462A1 (fr) *	1985-07-30	1987-02-04	BBC Brown Boveri AG	Chambre de combustion double
EP0321809B1 (fr) *	1987-12-21	1991-05-15	BBC Brown Boveri AG	Procédé pour la combustion de combustible liquide dans un brûleur
WO1990002907A1 (fr) *	1988-09-02	1990-03-22	American Combustion, Inc.	Procede et appareil pour produire une flamme extremement lumineuse
EP0503319A2 (fr) *	1991-03-12	1992-09-16	Asea Brown Boveri Ag	Brûleur pour une combustion à mélange préalable d'un combustible liquide et/ou gazeux

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5562441A (en) *	1994-07-25	1996-10-08	Abb Research Ltd.	Burner
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
US5655903A (en) *	1994-11-23	1997-08-12	Asea Brown Boveri Ag	Combustion chamber with premixing burners
EP0719983A1 (fr) *	1994-12-27	1996-07-03	ABB Management AG	Procédé et dispositif d'alimentation du combustible gazeuse vers un brûleur à prémélange
EP0719983B2 (fr) †	1994-12-27	2002-08-28	Alstom	Procédé et dispositif d'alimentation en combustible gazeux d'un brûleur à prémélange
DE4446945B4 (de) *	1994-12-28	2005-03-17	Alstom	Gasbetriebener Vormischbrenner
US5699667A (en) *	1994-12-28	1997-12-23	Asea Brown Boveri Ag	Gas-operated premixing burner for gas turbine
DE19507763A1 (de) *	1995-03-06	1996-09-12	Siemens Ag	Verfahren und Vorrichtung zur Verbrennung eines Brennstoffs in einer Gasturbine
WO2002029318A1 (fr) *	2000-10-05	2002-04-11	Alstom (Switzerland) Ltd	Procede et dispositif pour alimenter un bruleur a melange prealable en combustible
EP1855054A3 (fr) *	2000-10-05	2008-04-09	ALSTOM Technology Ltd	Procéder pour alimenter un brûleur a prémélange an combustible
US7003960B2 (en)	2000-10-05	2006-02-28	Alstom Technology Ltd	Method and appliance for supplying fuel to a premixing burner
EP1205713A1 (fr) *	2000-11-09	2002-05-15	ALSTOM Power N.V.	Procédé d'injection de combustible dans un brûleur
US6705857B2 (en)	2000-11-09	2004-03-16	Alstom Technology Ltd.	Method for injecting fuel into a burner
DE10064893A1 (de) *	2000-12-23	2002-11-14	Alstom Switzerland Ltd	Brenner mit gestufter Brennstoffeindüsung
WO2002052201A1 (fr) *	2000-12-23	2002-07-04	Alstom (Switzerland) Ltd	Bruleur a injection de combustible etagee
US7198483B2 (en)	2001-01-30	2007-04-03	Alstom Technology Ltd.	Burner unit and method for operation thereof

Also Published As

Publication number	Publication date
US5482457A (en)	1996-01-09
JP3553995B2 (ja)	2004-08-11
KR940009586A (ko)	1994-05-20
DE59209209D1 (de)	1998-04-02
JPH06193841A (ja)	1994-07-15
EP0592717B1 (fr)	1998-02-25

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