DE102004015904A1 - Method of liquid fuel atomization in a premix burner and premix burner - Google Patents

Method of liquid fuel atomization in a premix burner and premix burner Download PDF

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Publication number
DE102004015904A1
DE102004015904A1 DE200410015904 DE102004015904A DE102004015904A1 DE 102004015904 A1 DE102004015904 A1 DE 102004015904A1 DE 200410015904 DE200410015904 DE 200410015904 DE 102004015904 A DE102004015904 A DE 102004015904A DE 102004015904 A1 DE102004015904 A1 DE 102004015904A1
Authority
DE
Germany
Prior art keywords
liquid fuel
swirl
premix burner
flow
air
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Withdrawn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
DE200410015904
Other languages
German (de)
Inventor
Ernest Geoffrey Engelbrecht
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.)
General Electric Technology GmbH
Original Assignee
Alstom Technology AG
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 Technology AG filed Critical Alstom Technology AG
Priority to DE200410015904 priority Critical patent/DE102004015904A1/en
Priority to PCT/EP2005/051366 priority patent/WO2005095858A1/en
Publication of DE102004015904A1 publication Critical patent/DE102004015904A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
    • 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, e.g. burner cooling means, noise reduction means
    • F23D11/40—Mixing tubes or chambers; Burner heads
    • F23D11/402—Mixing chambers downstream of the nozzle
    • 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
    • F23C2900/07001—Air swirling vanes incorporating fuel injectors
    • 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
    • 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

Abstract

Beschrieben wird ein Verfahren sowie eine Vorrichtung zum Zerstäuben von Flüssigbrennstoff in einem Vormischbrenner mit einem Drallraum (1), in den Luft und Brennstoff eingespeist und in Form einer sich innerhalb des Drallraumes (1) axialwärts ausbildenden Drallströmung (11) gemischt werden, die stromab des Drallraumes (1) durch einen unsteten Strömungsübergang unter Ausbildung einer Rückströmzone aufbricht, in der sich das Brennstoff-Luft-Gemisch entzündet. DOLLAR A Die Erfindung zeichnet sich dadurch aus, dass Flüssigbrennstoff in Form wenigstens eines Flüssigbrennstoffstrahls (8) auf ein Flächenelement gerichtet wird, das von der in den Drallraum (1) gerichteten Luft (5) und/oder wenigstens von Strömungsanteilen der sich innerhalb des Drallraumes (1) ausbreitenden Drallströmung (11) überströmt wird, dass der auf das Flächenelement auftreffende Flüssigbrennstoffstrahl (8) unter Ausbildung eines sich längs zur Oberfläche des Flächenelementes in Überströmungsrichtung ausbreitenden Flüssigbrennstofffilmes (10) abgelenkt wird und dass der Flüssigbrennstofffilm (10) in Überströmungsrichtung von dem Flächenelement abgelöst und zerstäubt wird.The invention relates to a method and a device for atomizing liquid fuel in a premix burner with a swirl chamber (1) into which air and fuel are fed and mixed in the form of a swirl flow (11) forming axially inside the swirl chamber (1), downstream of the swirl burner Swirl space (1) breaks through an unsteady flow transition to form a Rückströmzone in which ignites the fuel-air mixture. DOLLAR A The invention is characterized in that liquid fuel in the form of at least one liquid fuel jet (8) is directed to a surface element of the in the swirl chamber (1) directed air (5) and / or at least of flow fractions of the inside of the swirl space (1) spreading swirling flow (11) is flowed over, that the surface of the element incident liquid fuel jet (8) is deflected to form a longitudinally to the surface of the surface element in the overflow propagating liquid fuel film (10) and that the liquid fuel film (10) in the overflow direction of the Surface element is detached and atomized.

DE200410015904 2004-03-31 2004-03-31 Method of liquid fuel atomization in a premix burner and premix burner Withdrawn DE102004015904A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200410015904 DE102004015904A1 (en) 2004-03-31 2004-03-31 Method of liquid fuel atomization in a premix burner and premix burner
PCT/EP2005/051366 WO2005095858A1 (en) 2004-03-31 2005-03-24 Method for spraying liquid fuel in a premix burner, and premix burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410015904 DE102004015904A1 (en) 2004-03-31 2004-03-31 Method of liquid fuel atomization in a premix burner and premix burner

Publications (1)

Publication Number Publication Date
DE102004015904A1 true DE102004015904A1 (en) 2005-10-20

Family

ID=34963171

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200410015904 Withdrawn DE102004015904A1 (en) 2004-03-31 2004-03-31 Method of liquid fuel atomization in a premix burner and premix burner

Country Status (2)

Country Link
DE (1) DE102004015904A1 (en)
WO (1) WO2005095858A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703259A (en) * 1971-05-03 1972-11-21 Gen Electric Air blast fuel atomizer
EP0210462A1 (en) * 1985-07-30 1987-02-04 BBC Brown Boveri AG Dual combustor
WO1995016881A1 (en) * 1993-12-17 1995-06-22 Abb Stal Ab Method and apparatus for atomizing liquid fuel
DE19721936A1 (en) * 1997-05-26 1998-12-03 Abb Research Ltd Burner for operating a unit for generating a hot gas
EP0981019A1 (en) * 1998-08-20 2000-02-23 Asea Brown Boveri AG Method and burner for combustion of liquid fuels

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4424639A1 (en) * 1994-07-13 1996-01-18 Abb Research Ltd Method and device for fuel distribution in a burner suitable for both liquid and gaseous fuels
EP0807213B1 (en) * 1995-02-03 2002-07-31 Rolls-Royce Deutschland Ltd & Co KG Flow-guiding body for gas turbine combustion chambers
DE19539246A1 (en) * 1995-10-21 1997-04-24 Asea Brown Boveri Airblast atomizer nozzle
US5966937A (en) * 1997-10-09 1999-10-19 United Technologies Corporation Radial inlet swirler with twisted vanes for fuel injector
EP0916894B1 (en) * 1997-11-13 2003-09-24 ALSTOM (Switzerland) Ltd Burner for operating a heat generator
US6543235B1 (en) * 2001-08-08 2003-04-08 Cfd Research Corporation Single-circuit fuel injector for gas turbine combustors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703259A (en) * 1971-05-03 1972-11-21 Gen Electric Air blast fuel atomizer
EP0210462A1 (en) * 1985-07-30 1987-02-04 BBC Brown Boveri AG Dual combustor
WO1995016881A1 (en) * 1993-12-17 1995-06-22 Abb Stal Ab Method and apparatus for atomizing liquid fuel
DE19721936A1 (en) * 1997-05-26 1998-12-03 Abb Research Ltd Burner for operating a unit for generating a hot gas
EP0981019A1 (en) * 1998-08-20 2000-02-23 Asea Brown Boveri AG Method and burner for combustion of liquid fuels

Also Published As

Publication number Publication date
WO2005095858A1 (en) 2005-10-13

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee