EP1731834A1 - Brûleur à combustible liquide - Google Patents

Brûleur à combustible liquide Download PDF

Info

Publication number
EP1731834A1
EP1731834A1 EP06011721A EP06011721A EP1731834A1 EP 1731834 A1 EP1731834 A1 EP 1731834A1 EP 06011721 A EP06011721 A EP 06011721A EP 06011721 A EP06011721 A EP 06011721A EP 1731834 A1 EP1731834 A1 EP 1731834A1
Authority
EP
European Patent Office
Prior art keywords
fuel jet
flow
fan
central opening
combustion chamber
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Withdrawn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
EP06011721A
Other languages
German (de)
English (en)
Inventor
Jürgen Rollmann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1731834A1 publication Critical patent/EP1731834A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/40—Mixing tubes or chambers; Burner heads
    • F23D11/408—Flow influencing devices in the air tube
    • 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 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • 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
    • F23D11/24—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space
    • 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

Definitions

  • the invention relates to a burner for liquid fuels according to the preamble of claim 1.
  • a generic burner is for example from the EP 0 683 883 B1 known. It consists of a burner housing, which has a support tube with an arranged in this prechamber and an adjoining flame tube. In the support tube, a nozzle with a fuel jet nozzle is arranged in the prechamber, and in the flame tube, the fuel jet spreads. Between the pre-chamber and the combustion chamber is a diaphragm with a central opening through which the fuel jet passes through, as well as additional openings on a more outer pitch circle.
  • combustion air flow is generated.
  • This includes a partial stream close to the fuel stream and a recirculation-stabilizing partial stream.
  • the flame tube is provided with recirculation openings for cooled flue gas, which are mounted in particular in the jacket in the area in front of the panel.
  • the radially outer recirculation-stabilizing partial flow has the form of a flow pattern corresponding to an annular flow interrupted in the circumferential direction, so that an inner recirculation flow running back from the blue-burning flame to the non-burning part of the fuel jet is formed in the combustion chamber.
  • the recirculation-stabilizing partial flow of the combustion air favors the inner recirculation flow.
  • the disclosure DE 38 01 681 C1 a method of combusting a gaseous or liquid fuel having a multi-hole orifice surrounding the outlet of a nozzle, the combustion air jets of which open into an axially extending mixing tube within the flame tube.
  • the mixing tube has recesses around it to produce so-called internal recirculation between mixing tube and flame tube.
  • such a mixing tube in the direct jet or flame area also cause undesirable flow noise.
  • the invention is therefore based on the object to optimize the combustion quality and robustness in different operating conditions in a burner for liquid fuels.
  • the burner for liquid fuels is characterized in that the diaphragm has a central opening with a plurality of extensions which extend fan-shaped in the radial direction from a fuel-jet-proximate core region.
  • the combustion air enters the combustion chamber in conjunction with the fuel jet near the core stream, also in a bypass flow emanating therefrom.
  • This sheath flow is fan-shaped, lies radially outside the core flow and stabilizes the inner recirculation flow of the hot gases.
  • the flow pattern of the coherent combustion air flow emerging through the central opening in the diaphragm corresponds approximately to the shape of a polygonal profile in cross section.
  • a further internal recirculation flow is generated, which forms in each case between two adjacent compartments of the sheath flow.
  • the central opening is formed point-symmetrical to the nozzle and the fan-shaped extensions are evenly distributed over the circumference and around the core area near the fuel path.
  • the central opening has five to ten fan-shaped extensions.
  • the fan-shaped extensions each consist of a slot which communicates with the end face facing the fuel jet near the core area in connection with the center.
  • the width of an elongated hole corresponds approximately to half its length and the length is approximately equal to the diameter of the fuel jet near the core region in the central opening.
  • fan-shaped sheath flow have the fan-shaped
  • Each extension has a smaller width. This constriction preferably extends for about a quarter to a third of the total length of an extension.
  • both the combustion quality and the robustness in different operating states are optimized in a burner for liquid fuels.
  • the orifice is still flowed through axially and, as in known burners, an internal recirculation is produced between the core stream and the flame tube wall which is characteristic of burners having a blue burning flame. But to stabilize the flame, this would not be enough on its own. Therefore, a second inner recirculation flow is generated with the fan-shaped in the radial direction of the fuel jet near the core stream extending extensions, which forms each between two adjacent compartments of the sheath current.
  • the flow pattern of the coherent combustion air flow emerging through the central opening in the diaphragm is similar in cross-section to the shape of a polygonal profile.
  • the mixing device of the burner for liquid fuels consists of a flame tube 1, which surrounds a combustion chamber 2, in which a fuel jet from a nozzle propagates. This is upstream of the combustion chamber 2, mounted just behind a panel 3.
  • the combustion air flow generated by a blower passes through a central Opening 4 in the aperture 3 therethrough. From the fuel-near-core region of this opening 4 go out several, extending in the radial direction, fan-shaped extensions 5. As a result, the combustion air is broken down into a fan-shaped, radially outer jacket flow, which stabilizes the inner recirculation flow of the hot gases, in conjunction with the fuel jet near the core stream.
  • a constriction 6 is provided and in the flame tube 1 are still openings 7 for an external recirculation of cooled flue gases from the surrounding furnace into the combustion chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP06011721A 2005-06-09 2006-06-07 Brûleur à combustible liquide Withdrawn EP1731834A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510026649 DE102005026649A1 (de) 2005-06-09 2005-06-09 Brenner für flüssige Brennstoffe

Publications (1)

Publication Number Publication Date
EP1731834A1 true EP1731834A1 (fr) 2006-12-13

Family

ID=36997489

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06011721A Withdrawn EP1731834A1 (fr) 2005-06-09 2006-06-07 Brûleur à combustible liquide

Country Status (2)

Country Link
EP (1) EP1731834A1 (fr)
DE (1) DE102005026649A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600106728A1 (it) * 2016-10-24 2018-04-24 Worgas Bruciatori Srl Bruciatore

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL28403C (fr) *
FR1448198A (fr) * 1965-06-22 1966-01-28 Perfectionnements aux brûleurs à mazout
FR1484973A (fr) * 1966-06-24 1967-06-16 Optimal Olfeuerungsmaschb Gmbh Procédé pour faire fonctionner un brûleur à pulvérisation de mazout sous pression et brûleur à pulvérisation de mazout sous pression pour la mise en oeuvre de ceprocédé
US4427367A (en) * 1980-05-09 1984-01-24 Nissan Motor Co., Ltd. Spray type combustion device
US5015174A (en) * 1988-06-21 1991-05-14 Walter Dreizler Burner head for a forced-air gas burner
EP0683883B1 (fr) * 1993-12-18 2001-02-28 Deutsches Zentrum für Luft- und Raumfahrt e.V. Bruleur a flamme bleue optimisant la combustion
WO2004038291A1 (fr) * 2002-10-23 2004-05-06 Swiss E-Technic Ag Procede de combustion et tete de bruleur, bruleur pourvu d'une telle tete de bruleur et chaudiere de chauffage comportant une telle tete de bruleur
WO2004048850A2 (fr) * 2002-11-22 2004-06-10 Aalborg Industries A/S Chaudiere, procede de commande de la combustion dans une chaudiere et tube d'echangeur thermique utilise dans une chaudiere

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3532777A1 (de) * 1985-09-13 1987-03-19 Man Technologie Gmbh Brenner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL28403C (fr) *
FR1448198A (fr) * 1965-06-22 1966-01-28 Perfectionnements aux brûleurs à mazout
FR1484973A (fr) * 1966-06-24 1967-06-16 Optimal Olfeuerungsmaschb Gmbh Procédé pour faire fonctionner un brûleur à pulvérisation de mazout sous pression et brûleur à pulvérisation de mazout sous pression pour la mise en oeuvre de ceprocédé
US4427367A (en) * 1980-05-09 1984-01-24 Nissan Motor Co., Ltd. Spray type combustion device
US5015174A (en) * 1988-06-21 1991-05-14 Walter Dreizler Burner head for a forced-air gas burner
EP0683883B1 (fr) * 1993-12-18 2001-02-28 Deutsches Zentrum für Luft- und Raumfahrt e.V. Bruleur a flamme bleue optimisant la combustion
WO2004038291A1 (fr) * 2002-10-23 2004-05-06 Swiss E-Technic Ag Procede de combustion et tete de bruleur, bruleur pourvu d'une telle tete de bruleur et chaudiere de chauffage comportant une telle tete de bruleur
WO2004048850A2 (fr) * 2002-11-22 2004-06-10 Aalborg Industries A/S Chaudiere, procede de commande de la combustion dans une chaudiere et tube d'echangeur thermique utilise dans une chaudiere

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600106728A1 (it) * 2016-10-24 2018-04-24 Worgas Bruciatori Srl Bruciatore
CN107975796A (zh) * 2016-10-24 2018-05-01 瓦盖斯燃烧器有限责任公司 燃烧器
EP3315861A1 (fr) * 2016-10-24 2018-05-02 Worgas Bruciatori S.R.L. Brûleur
US10584872B2 (en) 2016-10-24 2020-03-10 Worgas Bruciatori S.R.L. Burner
CN107975796B (zh) * 2016-10-24 2021-04-02 贝克特热能解决方案责任有限公司 燃烧器

Also Published As

Publication number Publication date
DE102005026649A1 (de) 2006-12-28

Similar Documents

Publication Publication Date Title
EP0175875B1 (fr) Brûleur à huile ou à gaz pour la génération de gaz à chaud
DE2460740A1 (de) Brennkammer fuer gasturbinentriebwerke
DE2013562A1 (de) Brenner
EP1213541A1 (fr) Brûleur à prémélange avec combustion catalytique et procédé de fonctionnement
DE102005038662B4 (de) Brennkopf und Verfahren zur Verbrennung von Brennstoff
DE19507088B4 (de) Vormischbrenner
EP0585442B1 (fr) Bruleur exempt de depots
EP1731834A1 (fr) Brûleur à combustible liquide
AT406706B (de) Brenner für gas- und ölheizkessel
DE202008009650U1 (de) Mehrstoff-Brenner
DE4325906C2 (de) Vorrichtung zur Regenerierung eines im Abgastrakt einer Brennkraftmaschine eingesezten Partikelfilters
DE69318509T2 (de) Verdampfungsbrenner
EP2679897B1 (fr) Brûleur à prémélange d'huile avec tourbillonneur
DE102008019532B3 (de) Ölvormischbrenner
EP0864812A2 (fr) Dispositif de mélange pour brûleur à gaz et à huile
DE10254664B3 (de) Brenner für flüssige Brennstoffe
DE3801681C1 (en) Method for burning gaseous or liquid fuel and burner for carrying out this method
EP0573028A2 (fr) Chambre de combustion, en particulier pour la régénération d'un filtre à particules dans un dispositif d'échappement d'un véhicule à moteur
EP1489352B1 (fr) Dispositif de mélange pour un brûleur au gaz ou au fioul
DE4229525A1 (de) Mischeinrichtung für Ölzerstäubungsbrenner
DE19814768A1 (de) Blaubrenner
DE10348272B3 (de) Mischeinrichtung für einen Öl- oder Gasbrenner
AT406795B (de) Brenner für gas- und ölheizungskessel
DE29618399U1 (de) Luftdüse
EP1916475A2 (fr) Mélangeur de brûleur à gas ou à huile

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20070613

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20091217

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100428