EP1712837A1 - Ensamble brûleur et son procédé d'utilisation - Google Patents

Ensamble brûleur et son procédé d'utilisation Download PDF

Info

Publication number
EP1712837A1
EP1712837A1 EP05008209A EP05008209A EP1712837A1 EP 1712837 A1 EP1712837 A1 EP 1712837A1 EP 05008209 A EP05008209 A EP 05008209A EP 05008209 A EP05008209 A EP 05008209A EP 1712837 A1 EP1712837 A1 EP 1712837A1
Authority
EP
European Patent Office
Prior art keywords
fuel supply
diffusion
flame
fuel
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.)
Withdrawn
Application number
EP05008209A
Other languages
German (de)
English (en)
Inventor
Andreas Dr. Böttcher
Peter Dietrich
Marcus Fischer
Uwe Gruschka
Jörg Gutsche
Peter Möllenbeck
Maria Robel
Erich Ruther
Wolfgang Schulze
Holger Dr. Streb
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP05008209A priority Critical patent/EP1712837A1/fr
Publication of EP1712837A1 publication Critical patent/EP1712837A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F23R3/34—Feeding into different combustion zones
    • F23R3/343—Pilot flames, i.e. fuel nozzles or injectors using only a very small proportion of the total fuel to insure continuous combustion
    • 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

Definitions

  • the invention relates to a burner arrangement for producing a flame in a combustion chamber, in particular in a gas turbine combustion chamber, with a premix fuel supply for feeding the flame in a premixing operation of the burner arrangement, a diffusion fuel supply for feeding the flame, in particular during the starting process and up to a power of approx 40% in a diffusion operation of the burner assembly and a pilot fuel supply for supplying a flame stabilizing pilot fuel.
  • a diffusion operation of a burner is meant a mode in which the fuel is injected directly into the flame without first being mixed with air. In premixing, however, the fuel is previously mixed with air before it is injected into the flame as an air-fuel mixture.
  • a pilot burner of the burner assembly serves, in particular in premixing operation, to stabilize the flame.
  • the fuel content supplied via the pilot fuel supply generally corresponds to only about 5% to 10% of the total fuel supply of the burner arrangement.
  • the pilot burner is also used to ignite the flame.
  • Such a burner arrangement is for example in DE 197 57 617 A1 described.
  • the burner assembly is designed for operation in a gas turbine plant and is rotationally symmetrical with respect to a central axis.
  • a liquid feed In the center of the burner is a liquid feed, via which a liquid fuel can be injected into the combustion chamber.
  • Concentric around the central liquid feed are a diffusion gas supply and a pilot gas supply and around these in turn a premix gas supply is arranged concentrically.
  • the pilot gas supply is designed as a long hole in the wall of the diffusion gas supply and opens into a tubular extension of the wall.
  • the first object is achieved by a burner assembly according to claim 1, the second object by a method according to claim 5.
  • the dependent claims contain advantageous embodiments of the invention.
  • a burner assembly according to the invention for fueling a flame in a combustion chamber, in particular in a gas turbine combustor, with fuel comprises a premix fuel supply having at least one premix fuel supply channel for feeding the flame in a premix operation of the burner assembly, a diffusion fuel supply having at least one diffusion fuel supply channel for supplying the flame in a diffusion operation of the burner assembly and a pilot fuel supply with at least one pilot fuel supply channel for supplying a flame-stabilizing pilot fuel.
  • the diffusion operation of the burner arrangement takes place in particular when starting the gas turbine plant and at a gas turbine power up to about 40%.
  • the diffusion fuel supply and the pilot fuel supply comprise the same fuel supply channel (s).
  • the premix fuel supply channel and / or the fuel supply channel can in this case in particular be designed as gas supply channels for supplying a gaseous fuel, for example natural gas.
  • a gas turbine plant is approached with the burner in the diffusion mode. At about 40% of the gas turbine power is switched from the diffusion mode to the premix mode. From this moment on, the fuel supply channel previously used to supply the diffusion fuel may be used to supply the pilot fuel.
  • the burner By providing a common fuel supply line for the pilot fuel supply and the diffusion fuel supply, the burner can be structurally simplified in comparison to the prior art, so that can be dispensed with a large number of design details. The manufacturing cost of the burner can be reduced.
  • the pilot fuel supply and the diffusion fuel supply are realized in the form of a single fuel supply system, i. They not only have at least one common fuel supply channel, but also use other components of the fuel supply system, such as fuel nozzles, in common.
  • This embodiment is distinguished from a burner according to the prior art by a particularly extensive structural simplicity. In particular, compared to the prior art, a complete fuel supply system can be completely eliminated.
  • the premix fuel supply channel is at least partially annularly arranged around the fuel supply channel.
  • Fig. 1 shows a burner assembly according to the prior art in a schematic sectional view.
  • FIG. 2 shows an exemplary embodiment of a burner arrangement according to the invention in a schematic sectional view.
  • the burner assembly according to the prior art shown in Figure 1 is constructed around a central axis A largely rotationally symmetrical. It comprises a centrally arranged liquid fuel supply 1, sometimes called a lance, around which a diffusion gas supply is arranged, which has a liquid fuel supply 1 concentrically surrounding annular channel 3 as a diffusion gas supply channel.
  • the annular channel 3 is in turn surrounded concentrically by a central air supply channel 5.
  • a premix gas supply passage 7 is concentrically arranged around the central air supply passage 5.
  • an outer air supply channel 9 is arranged.
  • nozzle tubes 11 are arranged with the premixed gas supply channel 7, which are provided with outlet nozzles 13 through which the premix gas is injected into the outer air supply channel 9.
  • mixing of the premixed gas with the supplied air occurs before the mixture of combustion, i. the flame in the combustion chamber 20, is supplied.
  • the diffusion gas is injected into the combustion chamber 20 via diffusion gas nozzles 2 without first being mixed with air.
  • pilot gas supply channels in the form of elongated holes 4 in the outer wall of the annular channel 3 are arranged.
  • tube 6 which project in the direction of the combustion chamber 20 via the wall of the annular channel 3 and the combustion chamber 20 are open.
  • FIG. 2 shows an embodiment of the burner assembly according to the invention in a schematic sectional view.
  • the burner assembly according to the invention is largely similar to the burner assembly of the prior art, with the difference that the used in the art as a feed channel for supplying the diffusion fuel annular channel is closed and remains unused.
  • the diffusion gas is introduced into the combustion chamber 20 instead of via the annular channel 3 via the long bores 4 and the tubes 6 in the diffusion mode of the burner.
  • a plurality of elongated holes 4 are arranged with adjoining tube 6 evenly around the central liquid fuel supply 1 around.
  • the central air supply passage 5, the premix gas supply passage 7, the outer air supply passage 9, and the nozzle tubes 11 are the same as those in the prior art. Reference is therefore made to the description of the burner arrangement shown in FIG. 1 with regard to these elements.
  • the burner arrangement according to the invention can be operated both in the premix mode and in the diffusion mode.
  • a switching of the burner assembly from the diffusion mode into the premixing mode is generally carried out when, after starting the gas turbine plant, a certain gas turbine power, for example 40% of the maximum power, has been reached.
  • the flame-stabilizing pilot gas is then supplied via the long bores 4 and the tubes 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
EP05008209A 2005-04-14 2005-04-14 Ensamble brûleur et son procédé d'utilisation Withdrawn EP1712837A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05008209A EP1712837A1 (fr) 2005-04-14 2005-04-14 Ensamble brûleur et son procédé d'utilisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05008209A EP1712837A1 (fr) 2005-04-14 2005-04-14 Ensamble brûleur et son procédé d'utilisation

Publications (1)

Publication Number Publication Date
EP1712837A1 true EP1712837A1 (fr) 2006-10-18

Family

ID=35502631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05008209A Withdrawn EP1712837A1 (fr) 2005-04-14 2005-04-14 Ensamble brûleur et son procédé d'utilisation

Country Status (1)

Country Link
EP (1) EP1712837A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1944547A1 (fr) * 2007-01-15 2008-07-16 Siemens Aktiengesellschaft Procédé de contrôle d'une fuite de carburant
EP2244015A1 (fr) 2009-04-23 2010-10-27 Siemens Aktiengesellschaft Brûleur à prémélange

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000012933A1 (fr) * 1998-08-26 2000-03-09 Siemens Aktiengesellschaft Bruleur hybride et procede permettant de le faire fonctionner
EP1106928A1 (fr) * 1999-12-08 2001-06-13 General Electric Company Configuration d'un système d'alimentation et méthode d'alimentation étagée en carburant pour turbines à gaz utilisant à la fois des carburants gazeux et liquides
US20010024774A1 (en) * 1998-08-27 2001-09-27 Peter Berenbrink Burner configuration with primary and secondary pilot burners
EP1596131A2 (fr) * 2004-05-13 2005-11-16 Ansaldo Energia S.P.A. Méthode de contrôle d'une chambre de combustion de turbine à gaz utilisant du combustible gazeux

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000012933A1 (fr) * 1998-08-26 2000-03-09 Siemens Aktiengesellschaft Bruleur hybride et procede permettant de le faire fonctionner
US20010024774A1 (en) * 1998-08-27 2001-09-27 Peter Berenbrink Burner configuration with primary and secondary pilot burners
EP1106928A1 (fr) * 1999-12-08 2001-06-13 General Electric Company Configuration d'un système d'alimentation et méthode d'alimentation étagée en carburant pour turbines à gaz utilisant à la fois des carburants gazeux et liquides
EP1596131A2 (fr) * 2004-05-13 2005-11-16 Ansaldo Energia S.P.A. Méthode de contrôle d'une chambre de combustion de turbine à gaz utilisant du combustible gazeux

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1944547A1 (fr) * 2007-01-15 2008-07-16 Siemens Aktiengesellschaft Procédé de contrôle d'une fuite de carburant
WO2008087126A1 (fr) * 2007-01-15 2008-07-24 Siemens Aktiengesellschaft Procédé consistant à commander une division de combustible
RU2449217C2 (ru) * 2007-01-15 2012-04-27 Сименс Акциенгезелльшафт Способ регулирования раздельной подачи топлива
US9459008B2 (en) 2007-01-15 2016-10-04 Siemens Aktiengesellschaft Method of controlling a fuel split
EP2244015A1 (fr) 2009-04-23 2010-10-27 Siemens Aktiengesellschaft Brûleur à prémélange

Similar Documents

Publication Publication Date Title
DE102010061639B4 (de) Verfahren zum Betreiben einer sekundären Brennstoffdüse für eine Brennkammer einer Turbomaschine
EP0902233B1 (fr) Buse de pulvérisation par pression combinée
DE102006007087B4 (de) Gasturbinen-Brennkammer
EP0719983B2 (fr) Procédé et dispositif d'alimentation en combustible gazeux d'un brûleur à prémélange
EP0276696A2 (fr) Brûleur hybride pour fonctionnement en prémélange au gaz et/ou au mazout, notamment pour turbines à gaz
DE102009003572A1 (de) Brennkammerkappe mit Kranzmischöffnungen
DE102011054308A1 (de) Brennkammer mit einem Magerbetrieb-Vordüsen-Brennstoffeinspritzsystem
DE10051221A1 (de) Brenner mit gestufter Brennstoff-Eindüsung
EP1855054B1 (fr) Procéder pour alimenter un brûleur a prémélange an combustible
WO2006103257A1 (fr) Bruleur de premelange destine a une chambre de combustion de turbine a gaz
EP1105678B1 (fr) Procede de fonctionnement d'un bruleur hybride
EP1712837A1 (fr) Ensamble brûleur et son procédé d'utilisation
EP1328760B1 (fr) Procede et appareil d'introduction de combustible dans un bruleur a premelange
DE10334228A1 (de) Verfahren zum Betrieb eines Vormischbrenners sowie Vorrichtung zur Durchführung des Verfahrens
EP2288852B1 (fr) Procédé de fonctionnement d'un brûleur à pré-mélange et brûleur à prémélange approprié pour mettre ledit procédé en oeuvre
EP1468179A1 (fr) Procede d'utilisation d'un bruleur, et bruleur notamment destine a une turbine a gaz
DE102010009051A1 (de) Brennstoffzuführungseinrichtung
WO2008025525A1 (fr) procédé de COMMANDE de la combustion dans une chambre de combustion et dispositif de chambre de combustion
DE4446609A1 (de) Verfahren und Vorrichtung zur Brennstoffzuführung zu einem sowohl für flüssige als auch für gasförmige Brennstoffe geeigneten Brenner
EP2422136B1 (fr) Brûleur à prémélange
EP1752633A1 (fr) Appareil pour la génération de gaz dans un système d'échappement d'un moteur thermique
DE3228452A1 (de) Brennkopf eines oelbrenners
DE8224775U1 (de) Vorrichtung zum Verbrennen von brennbare Stoffe enthaltender Abluft
DE8717191U1 (de) Hybridbrenner für Vormischbetrieb mit Gas und/oder Öl, insbesondere für Gasturbinenanlagen
WO1997012180A2 (fr) Procede et dispositif d'amelioration du comportement au demarrage d'un bruleur a diffusion d'huile

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20070419

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566