EP0849532B1 - Procédé de fonctionnement d'un brûleur - Google Patents

Procédé de fonctionnement d'un brûleur Download PDF

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Publication number
EP0849532B1
EP0849532B1 EP97810891A EP97810891A EP0849532B1 EP 0849532 B1 EP0849532 B1 EP 0849532B1 EP 97810891 A EP97810891 A EP 97810891A EP 97810891 A EP97810891 A EP 97810891A EP 0849532 B1 EP0849532 B1 EP 0849532B1
Authority
EP
European Patent Office
Prior art keywords
burner
fuel
gas
auxiliary gas
ignition
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
EP97810891A
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German (de)
English (en)
Other versions
EP0849532A3 (fr
EP0849532A2 (fr
Inventor
Franz Joos
Marcel Stalder
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.)
Alstom SA
Original Assignee
Alstom SA
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 SA filed Critical Alstom SA
Publication of EP0849532A2 publication Critical patent/EP0849532A2/fr
Publication of EP0849532A3 publication Critical patent/EP0849532A3/fr
Application granted granted Critical
Publication of EP0849532B1 publication Critical patent/EP0849532B1/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
    • F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/22—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour the gaseous medium being vaporised fuel, e.g. for a soldering lamp
    • 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
    • F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/101—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
    • F23D11/102—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber

Definitions

  • the invention relates to a method for operating a burner, according to the Preamble of claim 1.
  • the nozzle can also be used with a so-called Ignition level can be provided. It is a second Atomizer, which is designed for correspondingly small throughputs and therefore at Partial load ensures a sufficiently fine atomization of the liquid fuel.
  • a second Atomizer which is designed for correspondingly small throughputs and therefore at Partial load ensures a sufficiently fine atomization of the liquid fuel.
  • This nozzle with their two fuel supply lines and with two radially one above the other Fuel channels, which act on depending on the required fuel mass flow , but requires a relatively large amount of space. They are also components used are naturally filigree, which makes the nozzle more susceptible to failure.
  • pp. 142-144 and Fig. 4.50 is an atomizer for liquid fuels known, in which an auxiliary gas upstream of the injection opening is introduced into the liquid flow.
  • a gas pipe is arranged which ends upstream of the injection opening and is provided with a plurality of outlet openings for the auxiliary gas.
  • the injection of the auxiliary gas in the liquid flow takes place at low speed and with only slightly higher pressure than the liquid flow.
  • This in the auxiliary gas emerging from the liquid forms gas bubbles, due to their influence relatively thin scraps of liquid and bands appear in the liquid flow. Because such Liquid flows with a smaller diameter easier to a fine Spray can be dissolved, this will atomize the liquid Improved fuel.
  • With the injection of the auxiliary gas into the liquid fuel pipe the total volume flow to be atomized is increased so that sufficient atomization even with partial load using a full jet atomizer of the fuel is available.
  • the invention tries to avoid all of these disadvantages. You have the task is based on a simple and suitable method for all operating conditions To create operation of a burner.
  • this is achieved in that in a method according to the preamble of claim 1, the auxiliary gas only in the ignition and at Partial load of the burner fed and the supply interrupted at high load ranges becomes.
  • the atomizer nozzle which is known per se, can now be used both on ignition and Low load conditions as well as under high load conditions and of course at Full load can be optimally adjusted. In this way the respective range of applications such an atomizer nozzle or one equipped with it Brenners significantly expands your use with one with different combustion air pressures, such as. in a gas turbine, operated combustion chamber is only made possible by this.
  • the premixing of the liquid in the burner can Low-emission combustion can be achieved with the auxiliary gas.
  • An additional advantage results when using the method in axially mounted Brennkammem, in which the burners at different geodetic heights are arranged.
  • the supply of the auxiliary gas can, in particular, otherwise uneven distribution of the liquid fuel that occurs during ignition significantly reduced, thus increasing the functional reliability of the combustion chamber become.
  • auxiliary gas from a pressure vessel or Auxiliary compressor is supplied to the burner. According to the specific conditions of use the burner is therefore a suitable source for the auxiliary gas given.
  • Compressed air is particularly advantageously supplied as auxiliary gas. This is done at Requires either compressed ambient air or compressed air from the already pressure tank filled before igniting the burner used
  • the insert of ambient air as auxiliary gas is particularly cheap because it is constantly is available.
  • the invention can also be used with inert gases, e.g. Nitrogen, with ignition gases (e.g. propane) or with fuel gases (e.g. natural gas) will be realized.
  • inert gases e.g. Nitrogen
  • ignition gases e.g. propane
  • fuel gases e.g. natural gas
  • a plurality of burners 1 are arranged in the gas turbine system, not shown, which are operated with a liquid fuel 2, more precisely with fuel oil. Naturally other suitable fuels can also be used.
  • Each burner 1 consists of an outer air tube 3 and a coaxial inside the air tube 3 arranged atomizer nozzle 4, both in one Combustion chamber 5 of the gas turbine system open out.
  • the atomizer nozzle 4 has a Liquid fuel tube 6 with an interior 7, a fuel feed line 8 and one circular injection opening 9.
  • a gas pipe 11 connected to a feed line 10 is arranged, which several Has outlet openings 12 in the interior 7.
  • the interior 7 is in the direction the injection opening 9 tapers, i.e. with a guide piece 13 for that Fuel oil 2 formed
  • the feed line 10 has a control valve 14 with which the Gas pipe 11 can be opened or blocked.
  • each burner 1 When operating the gas turbine system, each burner 1 is switched over the corresponding one Fuel supply line 8 supplied with fuel oil 2.
  • the fuel oil 2 comes first in the interior 7 of the liquid fuel tube 6, where it through the Fuel pressure is further promoted in the direction of the injection opening 9.
  • Gas turbine system is arranged via the feed line 10 and in the gas pipe 11 Outlet openings 12 serving as auxiliary gas 15, compressed air into the Interior 7 located fuel oil 2 initiated.
  • This injection takes place with less Speed and with an insignificant compared to the fuel oil 2 higher pressure of about 0.1 to 3.0 bar.
  • the air serving as auxiliary gas 15 becomes the compressor section, not shown removed from the gas turbine system pre-compressed and, if necessary, also via one brought auxiliary compressor, not shown, to the required pressure.
  • the air 15 can also be supplied from a pressure vessel.
  • the fuel throughput of the Brenner 1 constantly.
  • the fuel pressure increases in line with the fuel throughput in the burner 1 and in the atomizing nozzle 4. If the atomization is sufficient required fuel pressure is reached, the air supply is through Closing the control valve 14 interrupted. With the control valve closed 14, i.e. at high fuel pressure, the fuel oil 2 is by means of the circular Injection opening 9 distributed to a fine, suitable for combustion spray.
  • auxiliary gases such as inert gases (nitrogen) or ignition gases (propane) or fuel gases (Natural gas) can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Feeding And Controlling Fuel (AREA)

Claims (9)

  1. Procédé pour le fonctionnement d'un brûleur (1), lors duquel le combustible liquide (2) pénétrant dans une buse de pulvérisation (4) du brûleur (1) avec une pression de combustible actuelle est éjecté à travers un orifice d'injection (9), avant, toutefois, l'introduction, dans le combustible liquide (2), d'un gaz auxiliaire (15) ayant une pression qui n'est que légèrement plus élevée que la pression du combustible, caractérisé en ce que le gaz auxiliaire (15) est alimenté lors de l'allumage et lors de la charge partielle du brûleur (1), l'alimentation auxiliaire étant toutefois interrompue dans les domaines de charge élevés du brûleur (1).
  2. Procédé selon la revendication 1, caractérisé en ce que le gaz auxiliaire (15) continue à être alimenté combustible liquide (2), même en cas d'interruption de l'alimentation du brûleur (1).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le gaz auxiliaire (15) est fourni au brûleur (1) à partir d'un cylindre sous pression ou d'un compresseur auxiliaire.
  4. Procédé selon la revendication 3, caractérisé en ce que de l'air comprimé est alimenté en tant que gaz auxiliaire (15).
  5. Procédé selon la revendication 4, caractérisé en ce que de l'air environnant (15) est comprimé pendant l'allumage et/ou le fonctionnement en charge partielle du brûleur (1) et est fourni au brûleur (1).
  6. Procédé selon la revendication 3, caractérisé en ce que de l'air comprimé (15) est fournit au brûleur (1) en provenance de l'un des cylindres sous pression remplis avant l'allumage du brûleur (1).
  7. Procédé selon la revendication 3, caractérisé en ce que l'on fournit au brûleur (1), en tant que gaz auxiliaire (15), un gaz inerte, de préférence de l'azote.
  8. Procédé selon la revendication 3, caractérisé en ce 8 que l'on fournit au brûleur. (1), en tant que gaz auxiliaire (15), un gaz d'allumage, de préférence du propane.
  9. Procédé selon la revendication 3, caractérisé en ce que l'on utilise, en tant que gaz auxiliaire (15), un gaz combustible, de préférence du gaz naturel.
EP97810891A 1996-12-19 1997-11-21 Procédé de fonctionnement d'un brûleur Expired - Lifetime EP0849532B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19653059 1996-12-19
DE19653059A DE19653059A1 (de) 1996-12-19 1996-12-19 Verfahren zum Betrieb eines Brenners

Publications (3)

Publication Number Publication Date
EP0849532A2 EP0849532A2 (fr) 1998-06-24
EP0849532A3 EP0849532A3 (fr) 1999-05-26
EP0849532B1 true EP0849532B1 (fr) 2002-04-10

Family

ID=7815390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810891A Expired - Lifetime EP0849532B1 (fr) 1996-12-19 1997-11-21 Procédé de fonctionnement d'un brûleur

Country Status (5)

Country Link
US (1) US6128894A (fr)
EP (1) EP0849532B1 (fr)
JP (1) JPH10185109A (fr)
CN (1) CN1119568C (fr)
DE (2) DE19653059A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019104614A1 (fr) * 2017-11-30 2019-06-06 乔治洛德方法研究和开发液化空气有限公司 Brûleur oxydant-polycombustible pouvant être utilisé pour un combustible solide et pour un combustible gazeux

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SE514341C2 (sv) * 1998-06-18 2001-02-12 Abb Ab Förfarande för start av en brännaranordning till en gasturbin
DE19855069A1 (de) * 1998-11-28 2000-05-31 Asea Brown Boveri Flüssigbrennstoffaufbereitungseinheit für einen Brenner und Verfahren zum Betrieb derselben
US6450108B2 (en) * 2000-03-24 2002-09-17 Praxair Technology, Inc. Fuel and waste fluid combustion system
US6796129B2 (en) * 2001-08-29 2004-09-28 Catalytica Energy Systems, Inc. Design and control strategy for catalytic combustion system with a wide operating range
US20040255588A1 (en) * 2002-12-11 2004-12-23 Kare Lundberg Catalytic preburner and associated methods of operation
BRPI0406806A (pt) * 2003-01-17 2005-12-27 Catalytica Energy Sys Inc Sistema e método de controle dinâmico para multicombustor catalìtico para motor de turbina a gás
WO2005026675A2 (fr) * 2003-09-05 2005-03-24 Catalytica Energy Systems, Inc. Detection de surchauffe d'un module catalyseur et procedes de reaction
US7390189B2 (en) * 2004-08-16 2008-06-24 Air Products And Chemicals, Inc. Burner and method for combusting fuels
FR2875584B1 (fr) * 2004-09-23 2009-10-30 Snecma Moteurs Sa Injecteur a effervescence pour systeme aeromecanique d'injection air/carburant dans une chambre de combustion de turbomachine
FR2875585B1 (fr) * 2004-09-23 2006-12-08 Snecma Moteurs Sa Systeme aerodynamique a effervescence d'injection air/carburant dans une chambre de combustion de turbomachine
CN100441949C (zh) * 2005-01-24 2008-12-10 张鹏飞 醇基液体燃料燃烧器
US7963096B2 (en) * 2006-11-02 2011-06-21 Vanholstyn Alex Reflective pulse rotary engine
US8454354B2 (en) * 2008-05-08 2013-06-04 Air Products And Chemicals, Inc. Highly radiative burner and combustion process
IT1400384B1 (it) * 2010-05-26 2013-05-31 Ansaldo Energia Spa Gruppo bruciatore per una camera di combustione di un impianto a turbina a gas, camera di combustione comprendente detto gruppo bruciatore e metodo per operare detto gruppo bruciatore.
EP2469167A1 (fr) 2010-12-22 2012-06-27 Siemens Aktiengesellschaft Système d'aération de carburant liquide avec du gaz pour turbine à gaz et procédé d'aération de carburant liquide avec du gaz pour turbine à gaz
US20140345289A1 (en) * 2012-02-01 2014-11-27 General Electric Company Gas turbomachine combustor assembly including a liquid fuel start-up system
US10634358B2 (en) 2017-06-16 2020-04-28 General Electric Company System and method for igniting liquid fuel in a gas turbine combustor
CN107035533B (zh) * 2017-06-23 2018-06-29 王冠霖 基于plc的多功能燃气轮机燃料控制装置
FR3105985B1 (fr) * 2020-01-03 2023-11-24 Safran Aircraft Engines Circuit multipoint d’injecteur amélioré
US11326521B2 (en) * 2020-06-30 2022-05-10 General Electric Company Methods of igniting liquid fuel in a turbomachine

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019104614A1 (fr) * 2017-11-30 2019-06-06 乔治洛德方法研究和开发液化空气有限公司 Brûleur oxydant-polycombustible pouvant être utilisé pour un combustible solide et pour un combustible gazeux

Also Published As

Publication number Publication date
JPH10185109A (ja) 1998-07-14
DE19653059A1 (de) 1998-06-25
EP0849532A3 (fr) 1999-05-26
DE59706957D1 (de) 2002-05-16
CN1186928A (zh) 1998-07-08
CN1119568C (zh) 2003-08-27
US6128894A (en) 2000-10-10
EP0849532A2 (fr) 1998-06-24

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