EP0933593B1 - Brûleur à deux combustibles - Google Patents

Brûleur à deux combustibles Download PDF

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Publication number
EP0933593B1
EP0933593B1 EP98123875A EP98123875A EP0933593B1 EP 0933593 B1 EP0933593 B1 EP 0933593B1 EP 98123875 A EP98123875 A EP 98123875A EP 98123875 A EP98123875 A EP 98123875A EP 0933593 B1 EP0933593 B1 EP 0933593B1
Authority
EP
European Patent Office
Prior art keywords
atomiser
channel
burner
fuel
primary
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
EP98123875A
Other languages
German (de)
English (en)
Other versions
EP0933593A3 (fr
EP0933593A2 (fr
Inventor
Nikolaos Dr. Zarzalis
Wolfgang Prof. Dr.-Ing. Leuckel
Klaus Merkle
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.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines GmbH
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 MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Publication of EP0933593A2 publication Critical patent/EP0933593A2/fr
Publication of EP0933593A3 publication Critical patent/EP0933593A3/fr
Application granted granted Critical
Publication of EP0933593B1 publication Critical patent/EP0933593B1/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
    • F23D11/005—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space with combinations of different spraying or vaporising means
    • F23D11/007—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space with combinations of different spraying or vaporising means combination of means covered by sub-groups F23D11/10 and F23D11/24
    • 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
    • F23D11/106—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 at the burner outlet
    • F23D11/107—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 at the burner outlet at least one of both being subjected to a swirling motion
    • 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
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/11101—Pulverising gas flow impinging on fuel from pre-filming surface, e.g. lip atomizers

Definitions

  • the invention relates to a burner for the oxidation of liquid fuel with air, according to the preamble of claim 1, in training as Dual fuel burners.
  • Such a burner is also known from DE 195 39 246 A1.
  • the object of the invention is a burner of the generic type so kind of expanding that it while maintaining its positive burning properties for operation with liquid and gaseous fuel suitable is.
  • the solution according to the invention is that an additional channel for the gaseous fuel is led into the interior of the atomizer lip and upstream of the atomizer edge, i.e. that for fuel processing ultimately authoritative position, in the primary and / or in the secondary Canal opens.
  • the additional channel can largely be designed as desired and in sections from a large number of interacting individual channels (e.g. holes) exist.
  • the gas admixture near the atomizer edge ensures a homogeneous mixing of the fuel components with sufficient Cooling of the burner - without the flame front retracting the air ducts.
  • a burner arrangement that can be operated with either liquid or gaseous fuel is already known from DE 28 20 702 C2. This points in Center a mixing ring with a mixing surface, which with a Airflow a spray of liquid fuel can be supplied and from which the fuel-air mixture enters the mixing ring. Gaseous fuel can be introduced into an air stream from the underside of the mixing ring. It is not planned to operate both fuels together.
  • the two-fuel burner 1, the longitudinal center axis of which is designated X, is fed with liquid fuel F via the atomizing nozzle 2.
  • the fuel emerges from the atomizing nozzle 2 in the form of a divergent spray cone 13 and meets the inner surface of an annular one concentric with respect to the X axis Atomizer lip 3.
  • a downstream migrating lip forms on this Fuel film 14, which on the atomizer edge 4 as a result of there prevailing air flow conditions in a fine, air-permeable Fuel mist 15 is transformed.
  • the combustion air is in the form of two initially separate air flows L1 and L2 through the dual fuel burner 1.
  • the first airflow L1 arrives via a primary, central channel 5 through the spray cone area as the core flow to the atomizer edge 4 of the atomizer lip 3.
  • the second air flow L2 passes through a secondary, concentric channel 6 over the outer circumference the atomizer lip 3 to the atomizer edge 4, where it is on as a sheath flow hits the first air flow L1 and the liquid fuel.
  • the convergent-divergent Outer contour 10 of the secondary channel 6 with a narrowest cross section in the area of the atomizer edge 4 leads to flow conditions there, which promote the homogenization of the fuel-air mixture.
  • the swirl generator 8.9 can the currents in the channels 5 and 6th swirling movements in the same or opposite directions, i.e. Components in the circumferential direction be imprinted.
  • the two air flows L1 meet and L2 on the atomizer edge 4 result in speed differences in size and direction and circumferential components to shear and centrifugal forces, with their Help an intimate mixing of fuel and air can be achieved.
  • An additional channel 7 is provided for the gaseous fuel G, which between channels 5 and 6 of the combustion air separately into the interior the atomizer lip 3 leads. From there, the gaseous fuel is over Flow connections upstream of the atomizer edge 4 in the primary Channel 5, routed into secondary channel 6 or into both channels 5,6, i.e. With Air and possibly also combined with liquid fuel. It takes also the gaseous fuel on the initiated at the atomizer edge 4 Distribution process part.
  • the gaseous fuel will be like that liquid fuel directed into the primary, central channel 5.
  • the constructive The conditions for this are shown in a half-section above the X axis. It can be seen that there is a coherent, annular opening the inside of the atomizer lip 3 forms the mouth of the channel 7. as well a variety of holes could form this mouth.
  • the gas leak takes place where the fuel film 14 is in liquid operation Moved towards atomizer edge 4. Because of the selected mode of operation (Alternatively) there is no liquid fuel / gas interaction, this is practical irrelevant.
  • liquid fuel film 14 on the atomizer lip surface also has an important cooling function. Therefore the gas may be appropriate at several, locally narrowly limited To pass through the fuel film 14, so that between these points sufficiently large, undisturbed film zones remain.

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)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)

Claims (6)

  1. Brûleur pour l'oxydation de combustible liquide avec de l'air, en particulier pour l'utilisation dans les chambres de combustion de turbines à gaz industrielles, avec une buse de pulvérisateur (2) générant un cône de pulvérisation divergent (13) pour le combustible, avec une lèvre de pulvérisateur (3) annulaire, concentrique par rapport à l'axe de la buse, formant une chicane pour le cône de pulvérisation, avec un conduit primaire acheminant un premier écoulement d'air vers le cône de pulvérisation ainsi qu'à travers la section transversale intérieure de la lèvre de pulvérisateur et avec un conduit secondaire acheminant un second écoulement d'air au-dessus du côté extérieur de la lèvre de pulvérisateur ainsi qu'un conduit réunissant celui-ci avec le premier écoulement d'air, caractérisé en ce que, dans la configuration sous forme de brûleur à deux combustibles, un conduit (7) pour combustible gazeux conduit vers l'intérieur de la lèvre de pulvérisateur (3) entre le conduit primaire (5) et le conduit secondaire (6), et débouche dans le conduit primaire (5) et/ou dans le conduit secondaire (6) en amont de l'arête de pulvérisateur (4) formant l'extrémité arrière de la lèvre de pulvérisateur (3).
  2. Brûleur selon la revendication 1 pour un fonctionnement simultané- au moins partiellement - avec un combustible liquide et gazeux, caractérisé en ce que le conduit (7) pour le combustible gazeux débouche soit uniquement dans le conduit secondaire (6) soit dans le conduit primaire (5) et dans le conduit secondaire (6) en amont de l'arête de pulvérisateur (4).
  3. Brûleur selon la revendication 1 pour un fonctionnement décalé dans le temps avec un combustible liquide ou gazeux, caractérisé en ce que le conduit (7) pour le combustible gazeux débouche dans le conduit primaire (5) en amont de l'arête de pulvérisateur (4).
  4. Brûleur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le conduit (7) pour le combustible gazeux comporte dans la zone de sortie une section transversale d'écoulement continue annulaire et/ou une pluralité de sections transversales d'écoulement individuelles, en particulier une pluralité d'alésages (11,12).
  5. Brûleur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le conduit primaire (5) et le conduit secondaire (6) sont munis, du côté de l'entrée, de générateurs de rotation (8,9), par exemple sous forme d'aubes directrices, le moment cinétique étant dans le méme sens ou en sens inverse dans les conduits (5,6).
  6. Brûleur selon la revendication 5, caractérisé en ce que le conduit secondaire (6) présente, en aval du générateur de rotation (9), un contour extérieur (10) convergent-divergent dont la section transversale la plus étroite se trouve au moins approximativement dans la même position axiale que l'arête de pulvérisateur (4).
EP98123875A 1998-01-31 1998-12-16 Brûleur à deux combustibles Expired - Lifetime EP0933593B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803879 1998-01-31
DE19803879A DE19803879C1 (de) 1998-01-31 1998-01-31 Zweistoffbrenner

Publications (3)

Publication Number Publication Date
EP0933593A2 EP0933593A2 (fr) 1999-08-04
EP0933593A3 EP0933593A3 (fr) 2000-01-19
EP0933593B1 true EP0933593B1 (fr) 2003-05-14

Family

ID=7856310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123875A Expired - Lifetime EP0933593B1 (fr) 1998-01-31 1998-12-16 Brûleur à deux combustibles

Country Status (4)

Country Link
US (1) US6068470A (fr)
EP (1) EP0933593B1 (fr)
JP (1) JPH11248114A (fr)
DE (1) DE19803879C1 (fr)

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ITMI991204A1 (it) * 1999-05-31 2000-12-01 Nuovo Pignone Spa Iniettore di combustibile liquido per bruciatori in turbine a gas
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ITMI20012781A1 (it) * 2001-12-21 2003-06-21 Nuovo Pignone Spa Assieme migliorato di camera di pre miscelamento e di camera di combustione, a basse emissioni inquinanti per turbine a gas con combustibile
DE10207311B4 (de) * 2002-02-21 2005-06-09 J. Eberspächer GmbH & Co. KG Zerstäuberdüse für einen Brenner, insbesondere für ein an einem Fahrzeug einsetzbares Heizgerät
DE10210034B4 (de) * 2002-03-07 2009-10-01 Webasto Ag Mobiles Heizgerät mit einer Brennstoffversorgung
US6920749B2 (en) * 2002-03-15 2005-07-26 Parker-Hannifin Corporation Multi-function simplex/prefilmer nozzle
US6968692B2 (en) * 2002-04-26 2005-11-29 Rolls-Royce Corporation Fuel premixing module for gas turbine engine combustor
DE10233161B4 (de) 2002-07-22 2012-01-05 Alstom Technology Ltd. Brenner und Pilotbrenner
US7045916B2 (en) * 2003-05-30 2006-05-16 Honeywell International Inc. Electronic fuel selection switch system
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DE10348604A1 (de) * 2003-10-20 2005-07-28 Rolls-Royce Deutschland Ltd & Co Kg Kraftstoffeinspritzdüse mit filmartiger Kraftstoffplatzierung
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DE102004002246A1 (de) * 2004-01-15 2005-08-11 J. Eberspächer GmbH & Co. KG Vorrichtung zur Erzeugung eines Luft/Kohlenwasserstoff-Gemischs
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US20090087805A1 (en) * 2006-03-14 2009-04-02 Babcock-Hitachi Kabushiki Kaisha In-Furnace Gas Injection Port
JP2009531699A (ja) * 2006-03-28 2009-09-03 パフォーマンス デザインド プロダクツ リミテッド 超音波を用いた三次元無線位置検出
US7628606B1 (en) * 2008-05-19 2009-12-08 Browning James A Method and apparatus for combusting fuel employing vortex stabilization
US8408197B2 (en) 2008-10-13 2013-04-02 Corning Incorporated Submergible combustion burner
US8893500B2 (en) 2011-05-18 2014-11-25 Solar Turbines Inc. Lean direct fuel injector
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US9182124B2 (en) 2011-12-15 2015-11-10 Solar Turbines Incorporated Gas turbine and fuel injector for the same
US9423137B2 (en) * 2011-12-29 2016-08-23 Rolls-Royce Corporation Fuel injector with first and second converging fuel-air passages
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JP6400181B2 (ja) 2014-08-14 2018-10-03 シーメンス アクチエンゲゼルシヤフトＳｉｅｍｅｎｓ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ 噴霧器配列を備える多機能燃料ノズル
US10132240B2 (en) 2014-08-14 2018-11-20 Siemens Aktiengesellschaft Multi-functional fuel nozzle with a dual-orifice atomizer
EP3180568B1 (fr) 2014-08-14 2019-04-10 Siemens Aktiengesellschaft Injecteur de carburant multifonctionnel avec un écran thermique
WO2017116266A1 (fr) * 2015-12-30 2017-07-06 General Electric Company Buses à combustible liquide pour chambres de combustion à double carburant
DE102016222097A1 (de) * 2016-11-10 2018-05-17 Rolls-Royce Deutschland Ltd & Co Kg Treibstoffdüse einer Gasturbine mit Drallerzeuger
CN107262302B (zh) * 2017-07-06 2019-01-29 南京航空航天大学 一种雾化喷嘴
GB201716585D0 (en) 2017-09-08 2017-11-22 Rolls Royce Plc Spray nozzle
CN110657452B (zh) * 2018-06-29 2020-10-27 中国航发商用航空发动机有限责任公司 低污染燃烧室及其燃烧控制方法
IT202100001871A1 (it) * 2021-01-29 2022-07-29 Marelli Europe Spa Dispositivo riscaldatore per un sistema di scarico di un motore a combustione interna
DE102021001580A1 (de) * 2021-03-25 2022-09-29 Mercedes-Benz Group AG Brenner für ein Kraftfahrzeug sowie Kraftfahrzeug mit wenigstens einem solchen Brenner
CN114192297B (zh) * 2021-11-29 2023-05-16 武汉船用机械有限责任公司 雾化装置
DE102022002113A1 (de) 2022-06-13 2023-12-14 Mercedes-Benz Group AG Brenner für ein Kraftfahrzeug, Verfahren zum Betreiben eines solchen Brenners sowie Kraftfahrzeug
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CN117646917A (zh) * 2023-12-07 2024-03-05 中国航天空气动力技术研究院 一种飞行器雾化喷燃装置及喷燃方法
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Also Published As

Publication number Publication date
JPH11248114A (ja) 1999-09-14
EP0933593A3 (fr) 2000-01-19
DE19803879C1 (de) 1999-08-26
US6068470A (en) 2000-05-30
EP0933593A2 (fr) 1999-08-04

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