EP0672864A1 - Brûleur - Google Patents

Brûleur Download PDF

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Publication number
EP0672864A1
EP0672864A1 EP95102928A EP95102928A EP0672864A1 EP 0672864 A1 EP0672864 A1 EP 0672864A1 EP 95102928 A EP95102928 A EP 95102928A EP 95102928 A EP95102928 A EP 95102928A EP 0672864 A1 EP0672864 A1 EP 0672864A1
Authority
EP
European Patent Office
Prior art keywords
burner
recesses
baffle plate
slots
burner according
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Withdrawn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
EP95102928A
Other languages
German (de)
English (en)
Inventor
Dieter Bombis
Rolf Mürner
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.)
ELCO ENERGIESYSTEME AG
Original Assignee
ELCO ENERGIESYSTEME 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 ELCO ENERGIESYSTEME AG filed Critical ELCO ENERGIESYSTEME AG
Publication of EP0672864A1 publication Critical patent/EP0672864A1/fr
Withdrawn legal-status Critical Current

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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
    • F23D11/406—Flame stabilising means, e.g. flame holders

Definitions

  • the invention relates to a burner for the stoichiometric combustion of liquid or gaseous fuels, consisting of a burner tube projecting into a boiler chamber, an atomizer nozzle inserted into the latter, which can be supplied with fuel via a fuel line, and an air supply line for the atomizer nozzle formed by the burner tube the combustion air conveyed by a fan or the like and a baffle plate arranged in the burner tube in front of the atomizing nozzle.
  • Burners of this type are known in a large number of different configurations, for example from EP-A1-0 410 135, and have also proven themselves in practice.
  • the baffle plate is here provided with a central opening through which the fuel emerging from the atomizer nozzle is injected into the combustion chamber, and with slot-like openings which extend radially outward and through which the combustion air flows into the combustion chamber.
  • the baffle plate thus does not significantly change the direction of flow of the combustion air, rather it is supplied to the combustion chamber and the fuel almost in the axial direction.
  • the object of the invention is therefore to provide a burner of the type mentioned, in which it is almost impossible that the burner flame changes its position and is more or less shifted into the combustion chamber by the combustion air, the burner flame should rather also with changing Always develop operating conditions in the immediate vicinity of the baffle plate. Pulsations in the burner flame should thus be reliably avoided, so that good combustion is always guaranteed with low levels of pollutants in the exhaust gases.
  • this is achieved in a burner of the aforementioned type in that the baffle plate is provided in the outer region with a cylindrical extension projecting in the direction of the combustion chamber of the burner and in the extension several, preferably evenly distributed recesses for controlled radial introduction of combustion air are incorporated.
  • the recesses machined into the extension piece can be designed as slots which are open on the side facing the combustion chamber, the slots being able to have lateral boundary surfaces running parallel to one another or diverging or converging in the direction of the combustion chamber. But it is also possible to design the recesses as bores, as elongated holes or as slot-like openings.
  • the baffle plate according to the invention is provided with a protruding attachment piece into which recesses are incorporated, it is possible, in addition to the one flowing axially into the combustion chamber Combustion air by means of the baffle plate also bring combustion air radially, specifically in a controlled manner into the combustion chamber. Due to the combustion air coming radially into the combustion chamber through the recesses of the extension piece, not only is an intensive mixing of the fuel with all the combustion air that has penetrated into the combustion chamber effected in a short time, but above all it is achieved that the burner flame is always maintained even under changing operating conditions maintains its position near the baffle plate. Suction of the burner flame from the baffle plate is reliably prevented by the radially inflowing combustion air.
  • the burner shown in FIG. 1 and designated 1 serves for the stoichiometric combustion of liquid or gaseous media and essentially consists of a burner tube 11 and an atomizing nozzle 12, which consists of a fuel line 15 provided with a filter 17 by means of a pump 16 inserted therein a fuel tank 14 is supplied.
  • the atomizer nozzle 12, to which an ignition electrode 18 or a spark plug is assigned, is surrounded by an air supply line 13, into which the combustion air conveyed by a fan 19 flows into the atomizer nozzle 12.
  • the air supply line 13 is formed here by the burner tube 11, which is fastened to a wall 4 of a boiler 2 by means of a flange 5, so that the burner tube 11 projects through an opening 6 into the boiler chamber 3 thereof.
  • a baffle plate 21 is arranged in front of the atomizer nozzle 12 in the burner tube 11 and is held adjustable by means of guide ribs 22 in the axial direction A of the burner tube 11.
  • the baffle plate 21 has a central opening 23 for introducing the fuel emerging from the atomizer nozzle 12 into a combustion chamber 20, and the baffle plate 21 is also provided with slit-like openings 24 for supplying the conveyed combustion air.
  • the supply of exhaust gas from the boiler room 3 into the combustion chamber 20 of the burner 1 is even, is at the free end of the burner tube 11, which consists of a cylindrical part 11 'and a conical tapered part 11 '' is assembled, a collar 25 attached.
  • the collar 25 here consists of a flat disk 26 which is welded to the conically tapering part 11 ′′ of the burner tube 11, so that the opening of the burner tube 11 is covered in the outer region.
  • the baffle plate 21 is provided in the outer region with a cylindrical extension 31 which projects in the direction of the combustion chamber 20 and is provided with differently shaped recesses.
  • the recesses are designed as slots 32 which are open towards the burner chamber 20 and have lateral boundary surfaces running parallel to one another; according to FIGS. 2 and 3, the lateral boundary surfaces of the slots 33 and 34 diverge or converge.
  • the recesses are formed as bores 35 or as elongated holes 36.
  • Combustion air can thus also flow radially from the outside into the combustion chamber 20 through the recesses of the extension piece 31, the mixing of the combustion air with the fuel is thereby accomplished in a short time and the burner flame is stabilized near the baffle plate 21, migration from the baffle plate 21 in Direction of the boiler room 3 is thus avoided.
  • the attachment 31 of the baffle plate 21 is provided with guide vanes 37 according to FIG.
  • the guide vanes 37 are formed here by the webs 38 located between the slots 32, which webs are designed to be correspondingly curved.
  • a ring 41 is inserted into this according to FIG.
  • the amount of combustion air flowing radially through the baffle plate 21 held in the burner tube 11 by means of struts 22 'into the combustion chamber 20 can thus be adjusted during assembly of the burner 1.

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)
EP95102928A 1994-03-19 1995-03-02 Brûleur Withdrawn EP0672864A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4409545 1994-03-19
DE19944409545 DE4409545A1 (de) 1994-03-19 1994-03-19 Brenner

Publications (1)

Publication Number Publication Date
EP0672864A1 true EP0672864A1 (fr) 1995-09-20

Family

ID=6513327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95102928A Withdrawn EP0672864A1 (fr) 1994-03-19 1995-03-02 Brûleur

Country Status (2)

Country Link
EP (1) EP0672864A1 (fr)
DE (1) DE4409545A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003008862A1 (fr) * 2001-07-19 2003-01-30 Lg Electronics Inc. Bruleur a gaz pour sechoir
KR100780355B1 (ko) * 2001-07-19 2007-11-29 주식회사 엘지이아이 건조기용 가스연소장치
US10782017B2 (en) 2018-04-24 2020-09-22 Trane International Inc. Wing vaned flame shaper

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000534A1 (fr) * 1978-01-20 1979-08-09 L Persson Dispositif pour bruleur a mazout
DE2809415A1 (de) * 1978-03-04 1979-09-13 Herrmann Gmbh & Co Stauvorrichtung
DE2936970A1 (de) * 1979-09-13 1981-04-02 Robert Bosch Gmbh, 7000 Stuttgart Oelzerstaeubungsbrenner, insbesondere fuer geraete kleiner leistung
DE4323300A1 (de) * 1993-07-12 1995-01-19 Oertli Waermetechnik Ag Mischvorrichtung für einen Brenner
DE4327987A1 (de) * 1993-08-20 1995-02-23 Electro Oil Gmbh Brennerkopf für Ölbrenner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000534A1 (fr) * 1978-01-20 1979-08-09 L Persson Dispositif pour bruleur a mazout
DE2809415A1 (de) * 1978-03-04 1979-09-13 Herrmann Gmbh & Co Stauvorrichtung
DE2936970A1 (de) * 1979-09-13 1981-04-02 Robert Bosch Gmbh, 7000 Stuttgart Oelzerstaeubungsbrenner, insbesondere fuer geraete kleiner leistung
DE4323300A1 (de) * 1993-07-12 1995-01-19 Oertli Waermetechnik Ag Mischvorrichtung für einen Brenner
DE4327987A1 (de) * 1993-08-20 1995-02-23 Electro Oil Gmbh Brennerkopf für Ölbrenner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003008862A1 (fr) * 2001-07-19 2003-01-30 Lg Electronics Inc. Bruleur a gaz pour sechoir
AU2002319942B2 (en) * 2001-07-19 2005-05-26 Lg Electronics Inc. Gas burner for dryer
US7204688B2 (en) 2001-07-19 2007-04-17 Lg Electronics Inc. Gas burner for dryer
KR100780355B1 (ko) * 2001-07-19 2007-11-29 주식회사 엘지이아이 건조기용 가스연소장치
US10782017B2 (en) 2018-04-24 2020-09-22 Trane International Inc. Wing vaned flame shaper

Also Published As

Publication number Publication date
DE4409545A1 (de) 1995-09-21

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