FR3066553B1 - RADIAL SWIRL CENTRAL INJECTOR - Google Patents

RADIAL SWIRL CENTRAL INJECTOR Download PDF

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Publication number
FR3066553B1
FR3066553B1 FR1700546A FR1700546A FR3066553B1 FR 3066553 B1 FR3066553 B1 FR 3066553B1 FR 1700546 A FR1700546 A FR 1700546A FR 1700546 A FR1700546 A FR 1700546A FR 3066553 B1 FR3066553 B1 FR 3066553B1
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France
Prior art keywords
fuel
radial
central
fixed ring
combustion chambers
Prior art date
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Active
Application number
FR1700546A
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French (fr)
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FR3066553A1 (en
Inventor
Bernard Etcheparre
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Individual
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Individual
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Priority to FR1700546A priority Critical patent/FR3066553B1/en
Publication of FR3066553A1 publication Critical patent/FR3066553A1/en
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Classifications

    • 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
    • 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
    • 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
    • F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/04—Air inlet arrangements
    • F23R3/10—Air inlet arrangements for primary air
    • F23R3/12—Air inlet arrangements for primary air inducing a vortex
    • F23R3/14—Air inlet arrangements for primary air inducing a vortex by using swirl vanes
    • 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
    • F23R3/42—Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
    • F23R3/52—Toroidal combustion chambers

Abstract

Injecteur Central à Tourbillonneurs Radiaux Le domaine du dispositif de la présente invention est celui des systèmes d’injection de carburant des chambres de combustion des turbomachines. Il répond plus spécialement à la problématique des « chambres de combustion annulaires coudées à écoulement direct » qui sont particulières par le fait que l’alimentation est centrale et que l’orientation de l’éjection du carburant qui y pénètre est radiale. L’injection de carburant pour ce genre de chambre de combustion se fait généralement avec un anneau tournant à grande vitesse qui utilise l’énergie cinétique pour projeter le flux de carburant pulvérisé dans la virole d’entrée de la chambre. Le dispositif, selon l’invention, répond à la question de réaliser un système d’injection centrale avec un anneau fixe, qui soit au moins aussi efficace qu’avec un anneau tournant et qui permette d’obtenir une pulvérisation de grande qualité, avec une faible pression d’alimentation du carburant, associée à l’obtention d’un très bon effet de mélange air/carburant. Le dispositif selon l’invention introduit l’installation autour de l’anneau fixe de tourbillonneurs radiaux qui par leur géométrie particulière créent des nappes d’air comprimés qui se font face et qui dans un mouvement hélico-centrifuge en rotation contraire, emprisonnent et cisaillent les gouttelettes de carburant pour les brumiser et les mélanger à l’air primaire de combustion aussi efficacement que le ferait le dispositif tournant.Radial Vortex Central Injector The field of the device of the present invention is that of fuel injection systems for the combustion chambers of turbomachines. It addresses more specifically the problem of "annular annular combustion chambers with direct flow" which are particular in that the feed is central and that the orientation of the ejection of the fuel entering it is radial. Fuel injection for this type of combustion chamber is typically done with a high-speed rotating ring that uses kinetic energy to project the flow of atomized fuel into the chamber's inlet ferrule. The device, according to the invention, answers the question of producing a central injection system with a fixed ring, which is at least as efficient as with a rotating ring and which makes it possible to obtain high-quality spraying, with low fuel supply pressure, associated with obtaining a very good air / fuel mixture effect. The device according to the invention introduces the installation around the fixed ring of radial swirlers which by their particular geometry create compressed air layers which face each other and which in a helico-centrifugal movement in opposite rotation, trap and shear the fuel droplets to mist them and mix them with the primary combustion air as efficiently as the rotating device would.

FR1700546A 2017-05-22 2017-05-22 RADIAL SWIRL CENTRAL INJECTOR Active FR3066553B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1700546A FR3066553B1 (en) 2017-05-22 2017-05-22 RADIAL SWIRL CENTRAL INJECTOR

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1700546 2017-05-22
FR1700546A FR3066553B1 (en) 2017-05-22 2017-05-22 RADIAL SWIRL CENTRAL INJECTOR

Publications (2)

Publication Number Publication Date
FR3066553A1 FR3066553A1 (en) 2018-11-23
FR3066553B1 true FR3066553B1 (en) 2021-02-26

Family

ID=60019944

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1700546A Active FR3066553B1 (en) 2017-05-22 2017-05-22 RADIAL SWIRL CENTRAL INJECTOR

Country Status (1)

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FR (1) FR3066553B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111006242A (en) * 2019-12-19 2020-04-14 襄阳宏航实业有限责任公司 Combustion chamber and production process thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1126193B (en) * 1959-10-07 1962-03-22 Bmw Triebwerkbau Ges M B H Gas turbine, in particular small gas turbine with radial compressor and radial turbine
DE1219287B (en) * 1962-09-07 1966-06-16 M A N Turbo Ges Mit Beschraenk Gas turbine, in particular small gas turbine with centrifugal compressor and centrifugal turbine
US3306333A (en) * 1964-03-31 1967-02-28 Bendix Corp Air spray combustor
FR2754333A1 (en) * 1996-10-03 1998-04-10 Etcheparre Bernard Centrifugal injector for gas turbine combustor

Also Published As

Publication number Publication date
FR3066553A1 (en) 2018-11-23

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