EP0857915A2 - Procédé et tête de brûleur pour la combustion des combustibles liquides ou gazeux - Google Patents

Procédé et tête de brûleur pour la combustion des combustibles liquides ou gazeux Download PDF

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Publication number
EP0857915A2
EP0857915A2 EP97122516A EP97122516A EP0857915A2 EP 0857915 A2 EP0857915 A2 EP 0857915A2 EP 97122516 A EP97122516 A EP 97122516A EP 97122516 A EP97122516 A EP 97122516A EP 0857915 A2 EP0857915 A2 EP 0857915A2
Authority
EP
European Patent Office
Prior art keywords
flame tube
combustion
burning head
flame
burning
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
EP97122516A
Other languages
German (de)
English (en)
Other versions
EP0857915B1 (fr
EP0857915A3 (fr
Inventor
Ekkehart Freund
Thomas Schmidt
Jürgen Stittrich
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 Kloeckner Heiztechnik GmbH
Original Assignee
Elco Kloeckner Heiztechnik 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 Elco Kloeckner Heiztechnik GmbH filed Critical Elco Kloeckner Heiztechnik GmbH
Publication of EP0857915A2 publication Critical patent/EP0857915A2/fr
Publication of EP0857915A3 publication Critical patent/EP0857915A3/fr
Application granted granted Critical
Publication of EP0857915B1 publication Critical patent/EP0857915B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F23C9/006—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber the recirculation taking place in the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
    • F23D17/002—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel gaseous or liquid fuel
    • 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 
    • F23C2202/00—Fluegas recirculation
    • F23C2202/30—Premixing fluegas with combustion air

Definitions

  • the invention relates to a burner head on burners for gas and / or Oil firing systems can be used as well as a process for Combustion of liquid or gaseous fuels in the above Investments.
  • the object of the invention is to provide a method and a burner head which considerably reduces the formation of NO x during combustion and enables the fuel to be burned at the lowest possible flame temperature and with low energy consumption.
  • the process of burning gaseous and liquid fuels in combustion plants is characterized in that an air flow for the Combustion is performed by a swirl body, and that at one downstream section of the flame tube by means of guide devices and Breakthroughs on the flame tube create a negative pressure, and that the Exhaust gas from combustion is sucked in through the openings and with the combustion air is mixed, and that in the combustion chamber Exhaust gas with the one not yet ignited injected into the combustion chamber Fuel is mixed, and that a flame front at a distance in front the burning head is generated.
  • Swirl body and at least one Atomizer nozzles for the supply of fuel are in a flame tube arranged, which as part of a burner head of a burner in the Combustion chamber of a boiler protrudes.
  • an inner swirl flow is generated which, together with the swirl braids generated by the openings or guide devices and the axial air flow, leads to a return of exhaust gases with low oxygen contents and to an intensive mixing of fuel, exhaust gas and lutt.
  • the formation of a flame front is not generated directly on the burner head, as is customary in conventional burners, but rather at a certain distance in front of the burner head.
  • a reduction in the flame temperature is advantageously brought about and thus the NO x formation is greatly reduced.
  • the burner head consists of a flame tube, at least one Atomizer nozzle (1) and / or at least one gas nozzle (2), the Flame tube consists of an approximately cylindrical section (3), which then into a tapered section (8), at which downstream one another approximately cylindrical section is arranged, in which downstream section in the flame tube openings (5) and inwardly projecting guide devices (4) are arranged, and in that Flame tube at least one swirl body (6) is arranged.
  • this burner head it is possible to generate a swirl flow in the burner head and to return exhaust gas to the burner head, so that better mixing of air, fuel and exhaust gas is possible. Furthermore, it becomes possible to create a stable flame front in front of the burning head.
  • the distance between the flame front and the burner is characterized by a mixing zone consisting of exhaust gases, combustion air and fuels, which has significantly lower temperatures than the burning flame.
  • the swirl body is axially displaceable. This optimizes the swirl flow.
  • a preferred embodiment is also the arrangement of passages in the swirl body through which the air can be supplied axially, the Distance of the flame front from the burner head is positively influenced.
  • the guide devices on the flame tube are preferably triangular in shape trained and in the direction of the mixing zone located in front of the combustion chamber aligned.
  • This form of guidance equipment leads to an effective one and effective training of vertebrae, which the mixing of the Promote exhaust gases, combustion air and fuel.
  • As special effective angle between the guide devices and the flame tube there is an angle between 30 and 40 degrees.
  • Figure 1 shows a longitudinal section through a burning head
  • Figure 2 the schematic formation of a flame by the invention Burning head caused.
  • FIG 1 is a burning head for the combustion of gaseous and liquid Shown fuels.
  • the burner head is on the burner different designs can be used. Such a burner can for example part of firing systems for hot water boilers, Steam generators, thermal oil heaters, hot gas generators or others Be a heat generator.
  • the burner head protruding into the combustion chamber 17 consists of a flame tube consisting of two cylindrical sections 3 as well as a tapered section 8.
  • Course before or in section 8 is a slidable swirl body 6 in the axial direction arranged.
  • the cylindrical one closest to the combustion chamber 17 Section of the flame tube 3 is in the interior of the flame tube 3 protruding bodies or guide devices 4, which preferably as triangular wings are formed, as well as recesses or Openings 5 provided.
  • the fuel is supplied by the line 13 and the atomizing nozzle 1 in liquid or through the Feed 12 and the gas nozzles 2 for gaseous fuels.
  • An internal swirl flow is generated with the swirl body 6.
  • the Axial adjustment of the swirl body can have an optimized ratio of Axial air pulse to swirl pulse are generated.
  • a negative pressure is generated which Intake of exhaust gases from the combustion chamber or combustion chamber 17 through the Openings 5 leads.
  • the wings 4 in the air flow or air gas flow act as Vortex generators. This creates two downstream of each wing opposite pegs.
  • the or the swirl body 6 are on one or more displaceable Brackets 10 attached.
  • the formation of the mixing zone 16 or the flame 18 is shown schematically in FIG.
  • the burner head is guided through the wall of the combustion chamber by means of a burner muffle 9.
  • the exhaust gas recirculation is brought about by the inflow of gas through the openings 5 on the one hand and by the suction of exhaust gas (represented by the arrows 14) into the non-burning evaporation or mixing zone 16.
  • the formation of a flame front 15 takes place only at a certain distance from the Burning head in the combustion chamber 17.
  • the hot flame 18 only forms from this flame front 15 and burns the exhaust gas, combustion air and fuel mixture. This is achieved through the combined effect of internal swirl impulse flow, axial air flow and the intensive turbulence of the vortex braids.
  • Local stabilization can be supported by a pilot burner or auxiliary burner 7 (not shown in FIG. 2).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)
EP97122516A 1997-02-07 1997-12-19 Procédé et tête de brûleur pour la combustion des combustibles liquides ou gazeux Expired - Lifetime EP0857915B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19704721 1997-02-07
DE19704721A DE19704721B4 (de) 1997-02-07 1997-02-07 Verfahren und Brennkopf zur Verbrennung von flüssigen oder gasförmigen Brennstoffen

Publications (3)

Publication Number Publication Date
EP0857915A2 true EP0857915A2 (fr) 1998-08-12
EP0857915A3 EP0857915A3 (fr) 1999-06-16
EP0857915B1 EP0857915B1 (fr) 2002-06-05

Family

ID=7819635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97122516A Expired - Lifetime EP0857915B1 (fr) 1997-02-07 1997-12-19 Procédé et tête de brûleur pour la combustion des combustibles liquides ou gazeux

Country Status (4)

Country Link
EP (1) EP0857915B1 (fr)
AT (1) ATE218687T1 (fr)
DE (2) DE19704721B4 (fr)
NO (1) NO311855B1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1754937A2 (fr) 2005-08-16 2007-02-21 E.C.B. GmbH Tête de brûleur et procédé pour brûler du combustible
DE102005049245A1 (de) * 2005-10-14 2007-04-19 BSH Bosch und Siemens Hausgeräte GmbH Brenner
DE102007009922A1 (de) 2007-02-27 2008-08-28 Ulrich Dreizler Hohlflamme
IT201600129822A1 (it) * 2016-12-22 2018-06-22 Ecoflam Bruciatori S P A Testa di combustione a bassa emissione di ossidi di azoto con sovraboccaglio munito di mezzi di ricircolo
IT201900006424A1 (it) * 2019-04-29 2020-10-29 Stefano Pesce Testa di combustione con ricircolazione interna e bruciatore comprendente la stessa
IT202000028400A1 (it) * 2020-11-25 2022-05-25 Baltur S P A Bruciatore e apparato industriale a ridotte emissioni
IT202000028394A1 (it) * 2020-11-25 2022-05-25 Baltur S P A Bruciatore e apparato industriale a ridotte emissioni
WO2022113000A3 (fr) * 2020-11-25 2022-08-11 Baltur S.P.A. Brûleur industriel à émission réduite et appareil
IT202100023477A1 (it) 2021-09-10 2023-03-10 Shanghai Quanjie Envir Equip Co Ltd Testa di combustione con ricircolazione interna e bruciatore comprendente la stessa

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10205428A1 (de) * 2002-02-09 2003-09-11 Alstom Switzerland Ltd Vormischbrenner mit erhöhter Flammenstabilität
ATE533995T1 (de) 2007-09-14 2011-12-15 Elco Burners Gmbh Brennerkopf und verfahren zur einstufigen verbrennung von brennstoff in einer vom brennerkopf beabstandeten verbrennungszone
DE102014105166B3 (de) * 2014-03-12 2015-08-06 Max Weishaupt Gmbh Drallerzeuger für einen Brenner sowie damit versehene Mischeinrichtung und damit versehener Brenner
DE102017114570B4 (de) 2017-06-29 2021-02-04 MIchael Karlowsky Brennerkopf und Verbrennungsverfahren

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3923238C2 (de) * 1989-07-14 1994-08-04 Electro Oil Gmbh Einrichtung zum Rückführen von Verbrennungsprodukten
DE3936461A1 (de) * 1989-11-02 1991-05-08 Koerting Ag Mischeinrichtung fuer oelbrenner mit geblaese
EP0491079B1 (fr) * 1990-12-19 1996-10-16 Asea Brown Boveri Ag Tête de brûleur pour la combustion à mélange préalable d'un combustible liquide dans une installation de combustion atmosphérique
DE4229525A1 (de) * 1992-09-07 1994-03-10 Intercal Waermetechnik Gmbh Mischeinrichtung für Ölzerstäubungsbrenner
DE4237086A1 (de) * 1992-11-03 1994-05-05 Hans Georg Dipl Ing Zimmermann Brenner für fließfähige Brennstoffe
DE9321525U1 (de) * 1993-07-20 1999-01-28 Elco Klöckner Heiztechnik GmbH, 72379 Hechingen Brenner zur Verbrennung von flüssigen oder gasförmigen Brennstoffen in Feuerungsanlagen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1754937A2 (fr) 2005-08-16 2007-02-21 E.C.B. GmbH Tête de brûleur et procédé pour brûler du combustible
DE102005038662B4 (de) * 2005-08-16 2007-08-23 E.C.B. Gmbh Brennkopf und Verfahren zur Verbrennung von Brennstoff
EP1754937A3 (fr) * 2005-08-16 2014-08-20 ELCO Burners GmbH Tête de brûleur et procédé pour brûler du combustible
DE102005049245A1 (de) * 2005-10-14 2007-04-19 BSH Bosch und Siemens Hausgeräte GmbH Brenner
DE102007009922A1 (de) 2007-02-27 2008-08-28 Ulrich Dreizler Hohlflamme
IT201600129822A1 (it) * 2016-12-22 2018-06-22 Ecoflam Bruciatori S P A Testa di combustione a bassa emissione di ossidi di azoto con sovraboccaglio munito di mezzi di ricircolo
IT201900006424A1 (it) * 2019-04-29 2020-10-29 Stefano Pesce Testa di combustione con ricircolazione interna e bruciatore comprendente la stessa
EP3734154A1 (fr) * 2019-04-29 2020-11-04 Shanghai Quanjie Envir Co,. Ltd. Tête de brûleur à recirculation interne
IT202000028400A1 (it) * 2020-11-25 2022-05-25 Baltur S P A Bruciatore e apparato industriale a ridotte emissioni
IT202000028394A1 (it) * 2020-11-25 2022-05-25 Baltur S P A Bruciatore e apparato industriale a ridotte emissioni
WO2022113000A3 (fr) * 2020-11-25 2022-08-11 Baltur S.P.A. Brûleur industriel à émission réduite et appareil
IT202100023477A1 (it) 2021-09-10 2023-03-10 Shanghai Quanjie Envir Equip Co Ltd Testa di combustione con ricircolazione interna e bruciatore comprendente la stessa

Also Published As

Publication number Publication date
DE19704721B4 (de) 2006-08-17
DE59707408D1 (de) 2002-07-11
NO311855B1 (no) 2002-02-04
ATE218687T1 (de) 2002-06-15
NO980247D0 (no) 1998-01-20
EP0857915B1 (fr) 2002-06-05
DE19704721A1 (de) 1998-08-13
EP0857915A3 (fr) 1999-06-16
NO980247L (no) 1998-08-10

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