WO2002012792A1 - Bruleur a pulverisation - Google Patents

Bruleur a pulverisation Download PDF

Info

Publication number
WO2002012792A1
WO2002012792A1 PCT/EP2001/009065 EP0109065W WO0212792A1 WO 2002012792 A1 WO2002012792 A1 WO 2002012792A1 EP 0109065 W EP0109065 W EP 0109065W WO 0212792 A1 WO0212792 A1 WO 0212792A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
atomizer
nozzle
fuel
swirl
Prior art date
Application number
PCT/EP2001/009065
Other languages
German (de)
English (en)
Inventor
Felix Wolf
Bernd Mittmann
Christine Sallinger
Original Assignee
Webasto Thermosysteme International 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 Webasto Thermosysteme International Gmbh filed Critical Webasto Thermosysteme International Gmbh
Priority to AU2001285874A priority Critical patent/AU2001285874A1/en
Priority to DE50111858T priority patent/DE50111858D1/de
Priority to HU0203137A priority patent/HUP0203137A2/hu
Priority to JP2002518038A priority patent/JP2004506167A/ja
Priority to EP01965175A priority patent/EP1305551B1/fr
Priority to PL353403A priority patent/PL196411B1/pl
Publication of WO2002012792A1 publication Critical patent/WO2002012792A1/fr

Links

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
    • 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
    • F23D11/103—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 with means creating a swirl inside the mixing chamber
    • 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

Definitions

  • the present invention relates to an atomizer burner, in particular for use in a motor vehicle auxiliary heater, with an atomizer nozzle for processing the fuel, an ignition device and a combustion chamber.
  • a known device which is used in particular in auxiliary heaters for motor vehicles or other mobile units, contains an absorbent body such as, for example, a fleece, to which liquid fuel is fed through a fuel feed line.
  • the fuel supplied to this absorbent body evaporates by supplying a stream of combustion air and can then be ignited with the aid of, for example, a glow pencil.
  • BESTATIGUNGSKOPIE nozzles cannot always cause the required atomization of the fuel.
  • This object is achieved according to the invention in a generic atomizer burner in that an air-guiding device is connected upstream of a nozzle assembly of the atomizer nozzle and applies a swirl to the combustion air flowing into the atomizer nozzle.
  • an air-guiding device is connected upstream of a nozzle assembly of the atomizer nozzle and applies a swirl to the combustion air flowing into the atomizer nozzle.
  • the air-guiding device has swirl showers which impart the swirl to the combustion air flow on its way to the atomizing nozzle.
  • the swirl blades are arranged on a carrier attached to the nozzle assembly and that two swirl blades together form a conical channel together with the carrier and the nozzle assembly.
  • the level of the tangential air and thus the jet air swirl can be set at the same level.
  • the swirl blades can be arranged approximately radially or substantially inclined to the radial.
  • the swirl vanes can be flat or curved in the direction of flow.
  • the air-guiding device has a cup-shaped sleeve with axial bores and tangential bores formed therein and that the sleeve is fastened to the nozzle assembly, the fastening being able to be formed in a form-fitting or material-locking manner.
  • the sleeve can be attached to the nozzle assembly.
  • the axial and tangential bores are matched to one another in such a way that the combustion air is given a defined swirl.
  • the twist can thus be determined with regard to its characteristics by the choice of the size, the arrangement and the configuration of the tangential and axial bores with respect to one another.
  • the atomizer nozzle preferably has an internal cross section which has a pressure profile over its course which, at least directly around an outlet opening of the fuel from a fuel supply, shows a value which is lower than the pressure prevailing in the fuel supply.
  • the degree of pressure reduction is chosen such that the fuel is sucked out of the fuel supply and atomized in the process.
  • the inner cross section of the atomizer nozzle is expediently formed as a Venturi nozzle.
  • FIG. 1 is a schematic longitudinal cross-sectional view of a preferred embodiment of an atomizer burner according to the invention.
  • FIG. 2 shows a perspective view of an air-guiding device of the atomizer burner of FIG. 1;
  • Figure 3 is a schematic longitudinal cross-sectional view of a second preferred embodiment of an atomizer burner according to the invention.
  • FIG. 4 shows the air-guiding device of the embodiment according to FIG. 3 in a schematic cross-sectional view along the line AA in FIG. 3;
  • FIG. 5 shows a schematic cross-sectional view according to FIG. 4, an alternative design of the air-guiding device.
  • An atomizer burner which is intended in particular for use in a motor vehicle auxiliary heater, contains (see FIG. 1) an atomizer nozzle 2 with a nozzle assembly 3, a fuel supply 4 for supplying fluid fuel into an atomizer region 6 of the atomizer nozzle 2 and a combustion chamber 8, which is surrounded by a heat shield 9 as a peripheral limitation.
  • An air-guiding device 10 is connected upstream of the nozzle assembly 3 of the atomizer nozzle 2 and imparts a swirl to the nozzle air flowing into the atomizer nozzle 2.
  • FIG. 1 An atomizer burner, which is intended in particular for use in a motor vehicle auxiliary heater, contains (see FIG. 1) an atomizer nozzle 2 with a nozzle assembly 3, a fuel supply 4 for supplying fluid fuel into an atomizer region 6 of the atomizer nozzle 2 and a combustion chamber 8, which is surrounded by a heat shield 9 as a peripheral limitation.
  • An air-guiding device 10 is connected upstream of the nozzle assembly 3 of the atomizer nozzle 2
  • the atomizer nozzle 2 is designed as a Venturi nozzle, which has an air inflow channel 5 and the atomizer region 6 which widens in the flow direction and is flowed through by an atomizing air stream flowing into the atomizer nozzle 2 via the air-guiding device 10.
  • a fluid or fuel supply 11, z. B. a fuel needle into it (see also FIG. 2), which has a defined outlet opening 13.
  • the fuel supply 11 is preferably located on a central axis 7 of the atomizer nozzle 2 or the air inflow duct 5 and the atomizer region 6 of the Venturi nozzle.
  • the fuel supply 11 can be a line, a fuel needle or a fluid nozzle in order to convey the fuel to be atomized into the venturi nozzle almost without pressure.
  • the atomizer nozzle 2 is preferably made of ceramic. Ceramic material has significant thermomechanical advantages over steel as an alternative usable material, such as a lower thermal conductivity and a lower coefficient of thermal expansion.
  • the air-guiding device 10 contains a spaced and opposite z. B. formed as a circular disc support 12 which forms an annular gap 14 together with the end face 15 of the nozzle assembly 3.
  • Swirl blades 17 are arranged on the carrier 12, which are directed against the end face 15 of the nozzle assembly 3 and bear against it in the assembly position.
  • the swirl vanes 17 are each offset on the carrier 12 with respect to a radial through the center of the carrier 12 formed by the fuel supply 11 in order to generate a tangential flow component.
  • Two swirl blades 17 form a conical channel 19 together with the carrier 12 and the nozzle assembly 3 (see FIG. 2).
  • the heat shield 9 or the combustion chamber 8 has secondary air bores 16 on its base, which can be distributed over an annular edge region of the base of the heat shield 9. 1 shows only two of these secondary air bores 16 by way of example.
  • 9 secondary air holes can also be provided in the side or peripheral wall of the heat shield.
  • the heat shield 9 of the combustion chamber 8 is a separate component via a seal 18 and a flange 20 on the nozzle assembly 3 z. B. firmly attached by means of screws 23.
  • the flange 20 contains a further air-conducting device 21 for swirling the secondary air flowing into the combustion chamber 8 through the secondary air bores 16.
  • the air-guiding device 21 likewise contains, in an annular gap 22, approximately radially arranged swirl vanes 25 which, in the manner already described, bring about a tangential flow component for generating swirl.
  • the atomizer burner further contains a bluff body within the combustion chamber 8 in the direction of atomization of the fuel in the flame zone, which is preferably a baffle plate 24, which can preferably be conical, convex or concave.
  • the baffle plate 24 is pot-shaped in the form of a collar 26 against the direction of atomization of the fuel, the diameter of the baffle plate 24 being smaller than that of the combustion chamber 8 and the ratio of the diameter of the baffle plate 24 to the diameter of the combustion chamber 8 preferably between 0.6 and 0.9 is.
  • the baffle plate 24 is fastened to the heat shield 9 with fastening tabs 28. The ratio of the axial distance of the baffle plate 24 from the atomization point of the fuel at the outlet opening 13 of the
  • Fuel supply 11 to the diameter of the combustion chamber 8 is preferably between 0.3 and 0.6.
  • An ignition device 29, shown schematically with broken lines, for igniting the atomized fuel is arranged in the combustion chamber 8 next to the Venturi nozzle.
  • a second embodiment of an atomizer burner contains an air-guiding device 10 'which has a cup-shaped sleeve 30, in the bottom of which axial air openings 32, e.g. B. axial bores, and in the peripheral wall 33 circumferential air openings 34, which are also referred to as tangential bores due to their orientation.
  • the sleeve 30 is fastened to the nozzle assembly 3 of the atomizing nozzle 2, for example by plugging it onto the nozzle assembly 3 or by means of other positive, non-positive or material connections.
  • the axial bores 32 and the tangential bores 34 are matched to one another in such a way that a defined swirl is imparted to the combustion air which flows into the air inflow duct 5 and then into the atomizer region 6.
  • FIG. 4 shows an exemplary arrangement of the axial air openings or axial bores 32 and the circumferential air openings or tangential bores 34 in the sleeve 30.
  • the pot-shaped sleeve 30 shown in FIG. 5 has in its peripheral wall 33 air openings 35 which are delimited towards the center of the sleeve 30 by a respective air guide vane 36.
  • a tangential flow component is impressed on the inflowing combustion air by the air guide vanes 36.
  • atomizer burner in particular for use in a motor vehicle parking heater, with an atomizer nozzle (2) for processing the fuel, an ignition device and a combustion chamber (8), characterized in that a nozzle assembly (3) of the atomizer nozzle (2) is an air-conducting device (10, 10 ') is connected upstream, which impinges a swirl on the combustion air flowing into the atomizing nozzle (2).
  • Atomizer burner according to claim 1 characterized in that the air-guiding device (10) has swirl blades (17).
  • Atomizer burner according to claim 2 characterized in that the swirl vanes (17) are arranged on a support (12) attached to the nozzle assembly (3) and that in each case two swirl vanes (17) together with the support (12) and the nozzle stock (3) form a conical channel (19).
  • Atomizer burner according to claim 1 characterized in that the air-guiding device (10 ') has a cup-shaped sleeve (30) fastened to the nozzle assembly (3) with axial air openings (32) formed therein and in a peripheral wall (33)
  • Atomizer burner according to claim 4 characterized in that the peripheral air openings (34) are almost tangential to the peripheral wall (33) bores. 6. Atomizer burner according to claim 4 or 5, characterized in that on the peripheral air openings (35) air guide vanes (36) are arranged.
  • atomizer burner according to one of claims 4 to 7, characterized in that the sleeve (30) is integrally connected to the nozzle assembly (3).
  • Atomizer burner according to one of claims 4 to 7, characterized in that the sleeve (30) on the nozzle assembly (3) is attached.
  • Atomizer burner according to one of the preceding claims, characterized in that the atomizer nozzle (2) has an inner cross section which has a static pressure profile over its course, which at least directly around an outlet opening (13) of the fuel from a fuel supply (11) has its minimum, which results in a high flow rate, which tears the fuel from the fuel feed (11) and atomizes.
  • Atomizer burner according to one of the preceding claims, characterized in that the atomizer nozzle (2) is a Venturi nozzle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Spray-Type Burners (AREA)

Abstract

L'invention concerne un brûleur à pulvérisation, notamment pour un chauffage auxiliaire de véhicule, comprenant une buse de pulvérisation (2) pour la préparation du carburant, un dispositif d'allumage (29) et une chambre de combustion (8). Afin d'obtenir une pulvérisation de carburant plus fine, un dispositif de conduite d'air (10, 12, 14) est disposé en amont du porte-buse (3) de la buse de pulvérisation (2), ce dispositif appliquant un mouvement de rotation à l'air de combustion entrant dans la buse de pulvérisation (2).
PCT/EP2001/009065 2000-08-06 2001-08-06 Bruleur a pulverisation WO2002012792A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2001285874A AU2001285874A1 (en) 2000-08-06 2001-08-06 Atomizing burner
DE50111858T DE50111858D1 (de) 2000-08-06 2001-08-06 Zerstäuberbrenner
HU0203137A HUP0203137A2 (en) 2000-08-06 2001-08-06 Atomizing burner
JP2002518038A JP2004506167A (ja) 2000-08-06 2001-08-06 噴霧バーナー
EP01965175A EP1305551B1 (fr) 2000-08-06 2001-08-06 Bruleur a pulverisation
PL353403A PL196411B1 (pl) 2000-08-06 2001-08-06 Palnik rozpylający

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10039152A DE10039152A1 (de) 2000-08-06 2000-08-06 Zerstäuberbrenner
DE10039152.4 2000-08-06

Publications (1)

Publication Number Publication Date
WO2002012792A1 true WO2002012792A1 (fr) 2002-02-14

Family

ID=7652045

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/009065 WO2002012792A1 (fr) 2000-08-06 2001-08-06 Bruleur a pulverisation

Country Status (10)

Country Link
US (1) US20030022123A1 (fr)
EP (1) EP1305551B1 (fr)
JP (1) JP2004506167A (fr)
KR (1) KR100771965B1 (fr)
CN (1) CN1198079C (fr)
AU (1) AU2001285874A1 (fr)
DE (2) DE10039152A1 (fr)
HU (1) HUP0203137A2 (fr)
PL (1) PL196411B1 (fr)
WO (1) WO2002012792A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100782237B1 (ko) 2005-08-26 2007-12-05 베바스토 아게 액체 연료 분사용 노즐
JP2009063289A (ja) * 2008-11-12 2009-03-26 Webasto Ag 液体燃料を噴霧するノズル

Families Citing this family (29)

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DE50112883D1 (de) * 2001-09-05 2007-09-27 Webasto Ag System zum umsetzen von brennstoff und luft zu reformat und verfahren zur montage eines solchen systems
DE10218623B4 (de) * 2002-04-25 2004-03-25 Webasto Thermosysteme International Gmbh Zerstäuberbrenner für ein Heizgerät
DE10221495B4 (de) * 2002-05-14 2004-03-11 Webasto Thermosysteme International Gmbh Brenner für ein Heizgerät
DE10224350B3 (de) * 2002-05-29 2004-01-22 Webasto Thermosysteme International Gmbh Zerstäuberbrenner mit einem Venturirohr für ein Heizgerät
DE10227810B4 (de) * 2002-06-21 2004-08-26 Webasto Thermosysteme International Gmbh Brenner für ein Heizgerät mit einer Prallscheibe
DE10241791B4 (de) * 2002-09-06 2004-09-23 Webasto Thermosysteme International Gmbh Brenner, insbesondere Venturibrenner, mit einem Brennkammerrohr
JP2006514254A (ja) * 2003-02-28 2006-04-27 ベバスト・アクチィエンゲゼルシャフト 液体燃料を噴霧するノズル
EP1597516A1 (fr) 2003-02-28 2005-11-23 Webasto AG Systeme pour amener de l'air de combustion et du combustible liquide dans un bruleur
ITBG20030016A1 (it) * 2003-02-28 2004-09-01 Benetton Group S P A Ora Benetton Trading Usa In Struttura di racchetta sportiva migliorata con aperture sul telaio
DE10331575B4 (de) * 2003-07-11 2005-08-25 Webasto Ag Brenner für ein Heizgerät mit einer Brennstoffdüse
DE10347509B4 (de) * 2003-10-13 2006-08-10 Webasto Ag Heizgerät mit einer Zerstäuberdüse
DE10350103B3 (de) * 2003-10-27 2005-03-10 Webasto Ag Fahrzeugtechnik Brenner für ein mobiles Heizgerät mit einer Prallscheibe
US20090239184A1 (en) * 2004-11-17 2009-09-24 Poehner Michael Burner for a heater device with improved fuel supply
CN101103228A (zh) * 2004-11-17 2008-01-09 韦巴斯托股份公司 具有改进的挡板的用于加热器的燃烧器
US8616193B2 (en) * 2008-06-27 2013-12-31 Electrolux Home Products, Inc. Cooktop swirl burner
KR101033791B1 (ko) * 2009-06-01 2011-05-13 현대자동차주식회사 버너장치
DE102010043222B4 (de) * 2010-11-02 2014-02-27 Eberspächer Climate Control Systems GmbH & Co. KG Brennkammerbaugruppe und Zündorgan dafür
KR101267589B1 (ko) 2011-09-28 2013-05-24 현대제철 주식회사 예열용 버너
DE102012101580B4 (de) 2012-02-27 2020-10-29 Webasto Ag Mobiles, mit flüssigem Brennstoff betriebenes Heizgerät
DE102012101577A1 (de) 2012-02-27 2013-08-29 Webasto Ag Mobiles, mit flüssigem Brennstoff betriebenes Heizgerät
DE102012101578A1 (de) * 2012-02-27 2013-08-29 Webasto Ag Mobiles, mit flüssigem Brennstoff betriebenes Heizgerät
CA2881109C (fr) * 2012-08-07 2015-09-29 Hino Motors, Ltd. Bruleur
JP5629844B2 (ja) 2012-08-07 2014-11-26 日野自動車株式会社 排気浄化装置用バーナー
JP5584381B2 (ja) 2012-08-07 2014-09-03 日野自動車株式会社 排気浄化装置用バーナー
WO2014027596A1 (fr) * 2012-08-13 2014-02-20 日野自動車 株式会社 Brûleur
US10222070B2 (en) * 2016-01-15 2019-03-05 Haier Us Appliance Solutions, Inc. Gas burner assembly with a temperature sensor
CN107379924A (zh) * 2017-09-04 2017-11-24 郑州振资汽车配件有限公司 用于驻车空暖加热器的导流体总成
DE102018111636A1 (de) * 2018-05-15 2019-11-21 Webasto SE Verdampferbaugruppe für mobile Heizgeräte
CN112628728B (zh) * 2020-12-22 2023-05-12 江苏羚羊机械有限公司 一种新型回转窑燃烧器可调旋流装置

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US4842197A (en) * 1986-12-10 1989-06-27 Mtu Motoren-Und Turbinen-Union Gmbh Fuel injection apparatus and associated method
DE19738054A1 (de) * 1997-09-01 1998-04-02 Koehne Heinrich Dr Ing Verfahren und Vorrichtung zur Veränderung der Drallzahl der Verbrennungsluft eines Brenners während des Betriebes
WO1998028493A1 (fr) * 1996-12-24 1998-07-02 Ei Hoe Ku Unite de chauffage d'agregats froids comportant un bruleur de sechoir thermique a conversion de vapeur
EP1058052A1 (fr) * 1999-05-31 2000-12-06 Entreprise Generale De Chauffage Industriel Pillard Brûleur à combustible liquide à basse émission de NOx et de poussières et atomiseur associé
WO2001071251A1 (fr) * 2000-03-24 2001-09-27 Webasto Thermosysteme International Gmbh Bruleur binaire avec atomisation de combustible par tube de venturi, et tube de venturi pour atomisation de combustible liquide

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US3972182A (en) * 1973-09-10 1976-08-03 General Electric Company Fuel injection apparatus
US4842197A (en) * 1986-12-10 1989-06-27 Mtu Motoren-Und Turbinen-Union Gmbh Fuel injection apparatus and associated method
WO1998028493A1 (fr) * 1996-12-24 1998-07-02 Ei Hoe Ku Unite de chauffage d'agregats froids comportant un bruleur de sechoir thermique a conversion de vapeur
DE19738054A1 (de) * 1997-09-01 1998-04-02 Koehne Heinrich Dr Ing Verfahren und Vorrichtung zur Veränderung der Drallzahl der Verbrennungsluft eines Brenners während des Betriebes
EP1058052A1 (fr) * 1999-05-31 2000-12-06 Entreprise Generale De Chauffage Industriel Pillard Brûleur à combustible liquide à basse émission de NOx et de poussières et atomiseur associé
WO2001071251A1 (fr) * 2000-03-24 2001-09-27 Webasto Thermosysteme International Gmbh Bruleur binaire avec atomisation de combustible par tube de venturi, et tube de venturi pour atomisation de combustible liquide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100782237B1 (ko) 2005-08-26 2007-12-05 베바스토 아게 액체 연료 분사용 노즐
JP2009063289A (ja) * 2008-11-12 2009-03-26 Webasto Ag 液体燃料を噴霧するノズル

Also Published As

Publication number Publication date
DE10039152A1 (de) 2002-02-14
JP2004506167A (ja) 2004-02-26
CN1386182A (zh) 2002-12-18
PL196411B1 (pl) 2007-12-31
DE50111858D1 (de) 2007-02-22
CN1198079C (zh) 2005-04-20
KR20020033213A (ko) 2002-05-04
PL353403A1 (en) 2003-11-17
EP1305551B1 (fr) 2007-01-10
US20030022123A1 (en) 2003-01-30
HUP0203137A2 (en) 2003-01-28
EP1305551A1 (fr) 2003-05-02
KR100771965B1 (ko) 2007-11-01
AU2001285874A1 (en) 2002-02-18

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