EP0585442A1 - Bruleur exempt de depots. - Google Patents

Bruleur exempt de depots.

Info

Publication number
EP0585442A1
EP0585442A1 EP93906564A EP93906564A EP0585442A1 EP 0585442 A1 EP0585442 A1 EP 0585442A1 EP 93906564 A EP93906564 A EP 93906564A EP 93906564 A EP93906564 A EP 93906564A EP 0585442 A1 EP0585442 A1 EP 0585442A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
passage
edge
burner
tear
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.)
Granted
Application number
EP93906564A
Other languages
German (de)
English (en)
Other versions
EP0585442B1 (fr
Inventor
Winfried Buschulte
Erich Adis
Manfred Bader
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.)
Deutsches Zentrum fuer Luft und Raumfahrt eV
Original Assignee
Deutsche Forschungs und Versuchsanstalt fuer Luft und Raumfahrt eV DFVLR
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 Deutsche Forschungs und Versuchsanstalt fuer Luft und Raumfahrt eV DFVLR filed Critical Deutsche Forschungs und Versuchsanstalt fuer Luft und Raumfahrt eV DFVLR
Publication of EP0585442A1 publication Critical patent/EP0585442A1/fr
Application granted granted Critical
Publication of EP0585442B1 publication Critical patent/EP0585442B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/40—Mixing tubes or chambers; Burner heads

Definitions

  • the invention relates to a burner for generating hot gas with a burner tube, with a nozzle arranged in the burner tube and having an outlet in a nozzle end face from which a fuel jet emerges, with an orifice arranged near the nozzle, which directs the burner tube into an upstream located and the nozzle receiving prechamber and a downstream combustion chamber divided, with a central passage arranged in the orifice for the fuel jet emerging from the outlet and with a number of openings surrounding the passage in the orifice through which combustion air enters the combustion chamber from the antechamber.
  • Such burners are known for example from EP-A-0 175 875.
  • the disadvantage of these burners is that there is thermal contact between the nozzle and the end face of the nozzle, so that the nozzle is warmed up by the hot orifice and, in particular after the burner has been switched off, the oil cracks outside the nozzle or inside the nozzle and forms clogging soot and / or carbon deposits on the nozzle channels or the outlet of the nozzle, so that the burner becomes inoperative.
  • the invention is therefore based on the object of improving a burner of the generic type in such a way that deposits no longer form in it.
  • the solution according to the invention on the one hand prevents thermal contact between the heating orifice and the nozzle, in particular the face of the nozzle, and the tear-off edge also ensures that the air flowing through the passage on the one hand the air gap and on the other hand the passage let yourself get rid of settling deposits.
  • the passage is provided with wall surfaces which widen conically in the direction of the combustion chamber, since such a construction of the wall surfaces prevents a disturbance of the fuel jet, in particular the spray cone formed by the fuel jet.
  • the air gap and the effect of the tear-off edge can be optimally designed if an annular surface adjoins the tear-off edge on the upstream side of the screen in the radial direction of the passage, that is to say in particular the axis of the nozzle.
  • the ring surface is flat and essentially perpendicular to the axis of the nozzle.
  • the air gap can be realized in a particularly simple manner in one of the exemplary embodiments described above if an end face of the nozzle end face is arranged upstream from the tear-off edge in the axial direction of the nozzle. In this case it is ensured that even a small leakage of oil from the nozzle face does not lead to sticking in the area of the tear-off edge. In addition, it is also advantageous if the nozzle face is arranged upstream in the axial direction of the nozzle at a distance from the ring surface, so that the air gap is formed between the ring surface and the nozzle face.
  • a particularly expedient dimensioning of the solution according to the invention results when the diameter of the tear-off edge is less than or equal to the diameter of the nozzle end face.
  • FIG. 2 shows a section along line 2-2 in FIG. 1.
  • the invention relates to a wide variety of oil burners and is discussed below using the example of a so-called blue burner, ie a burner in which oil is completely burned with a blue flame.
  • the invention is not restricted to such blue burners, for example the advantage according to the invention can also be achieved with yellow burners with the described design measures.
  • the burner shown in FIGS. 1 and 2 comprises a cylindrical burner tube 10, which is subdivided into a prechamber 14 located upstream and a combustion chamber 16 located downstream by a wall which is referred to below as orifice 12.
  • This nozzle 18 is provided with an outlet 24 arranged coaxially with its axis 22, which is arranged in a nozzle end face 26 of the nozzle 18.
  • a fuel jet 28 emerges from this outlet 24 and enters the combustion chamber 16 through a central passage 30 in the orifice 12.
  • the central passage 30 is arranged coaxially to the axis 22 of the nozzle 18 and has conical edge surfaces 32 which extend from a tear-off edge 34 to a downstream surface 36 of the diaphragm.
  • the tear-off edge 34 is surrounded upstream of the conical outer surfaces by a flat annular surface 38 which extends essentially perpendicular to the axis 22 and preferably lies in one plane with the upstream surface 40 of the diaphragm 12.
  • the nozzle 18 is arranged with its nozzle end face 26 upstream in the direction of the axis 22 at a distance from the ring surface 38 and is preferably aligned parallel to the plane in which the ring surface 38 is located, that is to say perpendicular to the axis 22.
  • the tear-off edge 34 forms the narrowest point of the passage 30 and preferably has a diameter which is approximately equal to or smaller than the diameter of the nozzle end face 26.
  • the nozzle 18 is thus separated from the heating orifice 12 by the air gap 44 and, moreover, the tear-off edge 34 of the passage 30 leads to the fact that even when particles are deposited in the area of the passage 30, these particles become active during operation of the Loosen the burner again, so that the air gap 44 does not become blocked and the passage 30 is always free of soot and oil carbon deposits even during prolonged operation.
  • a mixing tube 50 preferably adjoins the orifice 12 downstream, which, via peripheral slots 52, directly connects to the orifice 12 and forms a connection between its interior 54 forming the mixing space and an annular space serving as a recirculation space 56, which concentrically surrounds the mixing tube 50.
  • An ignition device 60 is led from the pre-chamber 14 through the diaphragm 12 and ends in the area of a window 62 in the mixing tube 50, so that ignition can take place in this area.
  • a measuring probe 64 is guided from the pre-chamber 14 through the orifice 12 into the combustion chamber 16.
  • a number of openings 66 are arranged on a circle surrounding the central passage 30, which connects the antechamber 14 and the interior space 54 surrounded by the mixing tube 50 in the combustion chamber 16 manufacture.
  • the openings preferably lie within a surface that results from the projection of the clear mixing tube cross-sectional surface onto the diaphragm 12.
  • the openings 66 are preferably arranged in such a way that the openings 66 are chamfered on the side of the diaphragm 12 facing the antechamber 14 and preferably narrow conically in the downstream direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Gas Burners (AREA)
  • Glass Compositions (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Game Rules And Presentations Of Slot Machines (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Spray-Type Burners (AREA)

Abstract

Un brûleur pour la production de gaz chauds comprend un ajutage (18) situé dans un tube (10) du brûleur et pourvu d'un orifice de sortie (24) dans sa face frontale (26) par lequel sort un jet de combustible (28). Un diaphragme (12) situé à proximité de l'ajutage subdivise le tube du brûleur en une préchambre (14) située en amont qui reçoit l'ajutage et en une chambre de combustion (16) située en aval. Le diaphragme est pourvu d'un passage central (30) pour le jet de combustible qui sort par l'orifice de sortie et d'une pluralité d'orifices qui entourent le passage, à travers lesquels l'air de combustion passe de la préchambre à la chambre de combustion. Afin d'améliorer ce brûleur de sorte qu'il ne s'y forme plus de dépôts, une fente d'aération (44) est ménagée entre le diaphragme et l'ajutage, à travers laquelle l'air de combustion sort de la préchambre, traverse le passage et pénètre dans la chambre de combustion. Un bord du passage est pourvu d'un rebord de séparation (34) pour l'air de combustion qui s'écoule à travers la fente d'aération.
EP93906564A 1992-03-21 1993-03-19 Bruleur exempt de depots Expired - Lifetime EP0585442B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4209220 1992-03-21
DE4209220A DE4209220A1 (de) 1992-03-21 1992-03-21 Ablagerungsfreier brenner
PCT/EP1993/000668 WO1993019326A1 (fr) 1992-03-21 1993-03-19 Bruleur exempt de depots

Publications (2)

Publication Number Publication Date
EP0585442A1 true EP0585442A1 (fr) 1994-03-09
EP0585442B1 EP0585442B1 (fr) 1997-09-03

Family

ID=6454690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93906564A Expired - Lifetime EP0585442B1 (fr) 1992-03-21 1993-03-19 Bruleur exempt de depots

Country Status (6)

Country Link
US (1) US5433601A (fr)
EP (1) EP0585442B1 (fr)
AT (1) ATE157760T1 (fr)
DE (2) DE4209220A1 (fr)
HU (1) HUT66431A (fr)
WO (1) WO1993019326A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19501041C2 (de) * 1995-01-16 2003-01-02 Deutsch Zentr Luft & Raumfahrt Brenner mit optimalem Startverhalten
US5927963A (en) * 1997-07-15 1999-07-27 Gas Electronics, Inc. Pilot assembly and control system
EP0931980B1 (fr) * 1998-01-23 2003-04-09 ALSTOM (Switzerland) Ltd Brûleur pour la mise en oeuvre d'un générateur de chaleur
DE10024977B4 (de) * 2000-05-19 2005-04-14 Deutsches Zentrum für Luft- und Raumfahrt e.V. Brenner für einen ein flüssiges Medium umfassenden Brennstoff
US6743010B2 (en) 2002-02-19 2004-06-01 Gas Electronics, Inc. Relighter control system
DE102005020664B4 (de) * 2005-05-07 2008-11-06 Robert Bosch Gmbh Brenner für flüssige Brennstoffe
JP4739275B2 (ja) * 2006-08-11 2011-08-03 Ｊｘ日鉱日石エネルギー株式会社 バーナ
DE102014100254B4 (de) * 2014-01-10 2017-10-05 Rational Aktiengesellschaft Feuerungsvorrichtung sowie Verfahren zur Detektion von Flüssigkeit in einer Feuerungsvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH363428A (de) * 1958-06-30 1962-07-31 Steyer Werner Brennerkopf an einem Druckzerstäuber-Ölbrenner
GB1052661A (fr) * 1963-01-30 1900-01-01
US3720496A (en) * 1971-03-29 1973-03-13 Koehring Co Fuel burner
US4171199A (en) * 1977-09-27 1979-10-16 Joseph Henriques Frustoconical burner can assembly
DE7936980U1 (de) * 1979-05-08 1982-02-25 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5000 Köln Vergasungsoelbrenner
JPS6026927B2 (ja) * 1980-05-09 1985-06-26 日産自動車株式会社 噴霧式燃焼装置
JPS6011617A (ja) * 1983-06-30 1985-01-21 Mitsubishi Electric Corp 車載用燃焼装置
DE3430010A1 (de) * 1984-08-16 1986-02-27 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn Brenner zur heissgaserzeugung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9319326A1 *

Also Published As

Publication number Publication date
EP0585442B1 (fr) 1997-09-03
HUT66431A (en) 1994-11-28
HU9303286D0 (en) 1994-03-28
DE59307246D1 (de) 1997-10-09
ATE157760T1 (de) 1997-09-15
WO1993019326A1 (fr) 1993-09-30
DE4209220A1 (de) 1993-09-23
US5433601A (en) 1995-07-18

Similar Documents

Publication Publication Date Title
EP0438682B1 (fr) Système d'échappement avec filtre à particules et brûleur de régénération
DE10304386B4 (de) Doppelfluid-Verwirbelungsdüse mit selbstreinigendem Zapfen
DE3520781C2 (fr)
DE2825431C2 (de) Vorrichtung zur Zufuhr von Luft und Brennstoff in die Brennkammer eines Gasturbinentriebwerkes
DE2131490C2 (de) Brenner-Mischdüse
EP0175875B1 (fr) Brûleur à huile ou à gaz pour la génération de gaz à chaud
DE2828826A1 (de) Brenner fuer fluessigen brennstoff
DE3722446A1 (de) Hochtemperatur-brennereinheit
EP0585442B1 (fr) Bruleur exempt de depots
EP1470864B1 (fr) Buse de pulvérisation à deux fluides
DE2552864C2 (de) Brenner für flüssige Brennstoffe
DE4323300C2 (de) Mischvorrichtung für einen Brenner
DE2843002C2 (de) Heizölbrenner
EP0428174A2 (fr) Dispositif de mélange avec flamme tourbillonnante pour brûleur à huile
DE3442148A1 (de) Zerstaeuberduese mit aufgesetzter verteilerkappe zur reduzierung der stickoxid-emission bei der verbrennung von fluessigen brennstoffen
EP0451662B1 (fr) Brûleur récupérateur
DE3801681C1 (en) Method for burning gaseous or liquid fuel and burner for carrying out this method
AT390390B (de) Zerstaeuberduese
DE3801679C1 (en) Burner for gaseous or liquid fuel
EP0579008A2 (fr) Brûleur à huile
EP0209631B1 (fr) Procédé et brûleur pour la combustion de combustible liquide
EP0414050B1 (fr) Tête de brûleur
EP1931914B1 (fr) Dispositif de combustion pour combustible pulverulent
DE3341305A1 (de) Vergasungsoelbrenner
WO1993005342A1 (fr) Bruleur a gaz, notamment pour gaz liquefie

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

17P Request for examination filed

Effective date: 19931113

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR IT LI

17Q First examination report despatched

Effective date: 19950119

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR IT LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19970903

REF Corresponds to:

Ref document number: 157760

Country of ref document: AT

Date of ref document: 19970915

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: KIRKER & CIE SA

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59307246

Country of ref document: DE

Date of ref document: 19971009

ET Fr: translation filed
RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: DEUTSCHES ZENTRUM FUER LUFT- UND RAUMFAHRT E.V.

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: DEUTSCHES ZENTRUM FUER LUFT- UND RAUMFAHRT E.V.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20050218

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050318

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20050322

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20050323

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060319

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060331

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20061130

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070302

Year of fee payment: 15

BERE Be: lapsed

Owner name: DEUTSCHE FORSCHUNGSANSTALT FUR *LUFT- UND RAUMFAHR

Effective date: 20060331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081001