EP0229231A2 - Brûleur pour la combustion de combustibles avec diminution de la formation des oxydes d'azote - Google Patents

Brûleur pour la combustion de combustibles avec diminution de la formation des oxydes d'azote Download PDF

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Publication number
EP0229231A2
EP0229231A2 EP86113814A EP86113814A EP0229231A2 EP 0229231 A2 EP0229231 A2 EP 0229231A2 EP 86113814 A EP86113814 A EP 86113814A EP 86113814 A EP86113814 A EP 86113814A EP 0229231 A2 EP0229231 A2 EP 0229231A2
Authority
EP
European Patent Office
Prior art keywords
burner
guide tube
air box
temperature
muffle
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
EP86113814A
Other languages
German (de)
English (en)
Other versions
EP0229231B1 (fr
EP0229231A3 (en
Inventor
Josef Gyarmati
Richard Minarik
Waldemar Hartmann
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.)
Deutsche Babcock Werke AG
Original Assignee
Leobersdorfer Maschinenfabrik GmbH
Deutsche Babcock Werke 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 Leobersdorfer Maschinenfabrik GmbH, Deutsche Babcock Werke AG filed Critical Leobersdorfer Maschinenfabrik GmbH
Priority to AT86113814T priority Critical patent/ATE51065T1/de
Publication of EP0229231A2 publication Critical patent/EP0229231A2/fr
Publication of EP0229231A3 publication Critical patent/EP0229231A3/de
Application granted granted Critical
Publication of EP0229231B1 publication Critical patent/EP0229231B1/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
    • 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 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/008—Flow control devices
    • 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
    • F23C2900/06041—Staged supply of oxidant
    • 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
    • F23C2900/09002—Specific devices inducing or forcing flue gas recirculation

Definitions

  • the invention relates to a burner for burning liquid and / or gaseous fuels with reduced formation of nitrogen oxides with the features of the preamble of claim 1.
  • Such a burner is known from EP-OS 0 139 085.
  • temperatures between 500 and 1100 degrees C occur due to the suction of flue gas from the combustion chamber.
  • high-temperature-resistant, metallic internals are used in the burner throat. With the fuels used and the temperatures that occur, there is a risk of high-temperature corrosion, particularly when burning sulfur-containing heavy oil.
  • the invention is based, to design the generic burner while maintaining the stepped air task in such a way that no high-temperature corrosion occurs.
  • This burner uses materials that are resistant to both oxidizing and reducing atmospheres.
  • the parts made of the temperature and corrosion-resistant material are shaped so that a staged air supply and a back suction of flue gas for the purpose of suppressing the formation of nitrogen oxides during combustion is possible.
  • the burner arrangement consists of an air box 1 through which a burner lance 2 for oil and a plurality of burner lances 3 for gas are passed.
  • the gas burner lances 3 are arranged around the oil burner lance 2.
  • An impeller 4 is slidably mounted on the oil burner lance 2.
  • the burner lances 2, 3 are surrounded by a first guide tube 5, the inlet opening of which lies within the air box 1 and the outlet opening 6 of which lies within the burner mouth, which is represented by the burner throat 7.
  • a combustion chamber 8 connects to the burner groove 7.
  • the air box 1 is separated from the burner groove 7 by a cover plate 9 through which the first guide tube 5 projects.
  • a swirl device 10 and an air guide tube 11 are provided in the rearward extension of the first guide tube 5.
  • the air guide tube 11 is axially adjustable via a linkage 12 guided to the outside. In one end position, the air guide tube 11 covers the air inlet cross section on the swirl device 10. In the other end position of the air guide tube 11, the air inlet cross section on the swirl device 10 is released and the rest of the inlet cross section covers the first guide tube.
  • a further guide tube is arranged within the burner groove 7 in the longitudinal axis of the burner at an axial distance from the outlet opening 6 of the first guide tube 5 and the cover plate 9 of the air box 1.
  • This further guide tube consists of a non-metallic, ceramic muffle 13 made of a temperature and corrosion resistant material.
  • This material can be recrystallized silicon carbide or ramming paste.
  • the muffle 13 is made up of sectors 14 which are bonded to the joints 15 with a temperature-resistant felt.
  • the sectors 14 of the muffle 13 remain freely movable with respect to one another.
  • the sectors 14 assembled in this way form a self-supporting, annular body.
  • the muffle 13 is supported by molded arms 16 on the wall of the burner groove 7 and is secured there against axial displacement. It is secured by gluing or by ceramic fasteners.
  • the muffle 13 is provided with axial passage openings 17 through which pipes 18 are passed.
  • the tubes 18 penetrate the cover plate 9 and protrude with their open end into the air box 1.
  • the other end of the tubes 18 protrudes beyond the muffle 13 and into the combustion chamber 8. This end of the tubes 18 can be beveled, the exit edge then running parallel to the spray angle 19 of the oil jet emerging from the oil burner lance 2.
  • the tubes 18 can be made from refractory ceramic, for example from aluminum silicate or from infiltrated silicon carbide. In order to be able to absorb thermal stresses, the tubes 18 are encased in the area of the penetration of the muffle 13 by a temperature-resistant felt. All ceramic inner parts of the burner are constructed in such a way that an exchange from the combustion chamber 8 is possible and that time-consuming dismantling of the air box, the fuel connection lines and others are eliminated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Supply (AREA)
EP86113814A 1986-01-13 1986-10-06 Brûleur pour la combustion de combustibles avec diminution de la formation des oxydes d'azote Expired - Lifetime EP0229231B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86113814T ATE51065T1 (de) 1986-01-13 1986-10-06 Brenner zum verbrennen von brennstoffen unter verminderter bildung von stickoxiden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3600665 1986-01-13
DE3600665A DE3600665C1 (de) 1986-01-13 1986-01-13 Brenner zum Verbrennen von fluessigem und/oder gasfoermigem Brennstoff unter verminderter Bildung von Stickoxiden

Publications (3)

Publication Number Publication Date
EP0229231A2 true EP0229231A2 (fr) 1987-07-22
EP0229231A3 EP0229231A3 (en) 1988-08-31
EP0229231B1 EP0229231B1 (fr) 1990-03-14

Family

ID=6291710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113814A Expired - Lifetime EP0229231B1 (fr) 1986-01-13 1986-10-06 Brûleur pour la combustion de combustibles avec diminution de la formation des oxydes d'azote

Country Status (3)

Country Link
EP (1) EP0229231B1 (fr)
AT (1) ATE51065T1 (fr)
DE (2) DE3600665C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893651A1 (fr) * 1997-07-22 1999-01-27 Entreprise Generale De Chauffage Industriel Pillard Brûleurs à combustible liquide et gazeux à faible émission d'oxyde d'azote

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262981B (en) * 1991-12-30 1995-08-09 Ind Tech Res Inst Dual fuel low nox burner
CZ308899B6 (cs) * 2020-12-22 2021-08-11 Vysoké Učení Technické V Brně Vzduchová skříň s recirkulací spalin

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2731562A1 (de) * 1977-06-17 1978-12-21 Sonvico Ag Langnau Ing Bureau Brenner fuer fluessige und/oder gasfoermige brennstoffe
DE3041177A1 (de) * 1979-11-02 1981-05-14 Hague International, South Portland, Me. Brenner
DE3048201A1 (de) * 1980-12-20 1982-07-08 L. & C. Steinmüller GmbH, 5270 Gummersbach "brenner zur verminderung der no(pfeil abwaerts)x(pfeil abwaerts)-emission"
US4347052A (en) * 1978-06-19 1982-08-31 John Zink Company Low NOX burner
US4475885A (en) * 1983-07-28 1984-10-09 Bloom Engineering Company, Inc. Adjustable flame burner

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT358702B (de) * 1975-01-27 1980-09-25 Manich Leo Wirbelbrenner fuer oel- und/oder gasbetrieb
DE3327597A1 (de) * 1983-07-30 1985-02-07 Deutsche Babcock Werke AG, 4200 Oberhausen Verfahren und brenner zum verbrennen von fluessigen oder gasfoermigen brennstoffen unter verminderter bildung von nox

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2731562A1 (de) * 1977-06-17 1978-12-21 Sonvico Ag Langnau Ing Bureau Brenner fuer fluessige und/oder gasfoermige brennstoffe
US4347052A (en) * 1978-06-19 1982-08-31 John Zink Company Low NOX burner
DE3041177A1 (de) * 1979-11-02 1981-05-14 Hague International, South Portland, Me. Brenner
DE3048201A1 (de) * 1980-12-20 1982-07-08 L. & C. Steinmüller GmbH, 5270 Gummersbach "brenner zur verminderung der no(pfeil abwaerts)x(pfeil abwaerts)-emission"
US4475885A (en) * 1983-07-28 1984-10-09 Bloom Engineering Company, Inc. Adjustable flame burner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893651A1 (fr) * 1997-07-22 1999-01-27 Entreprise Generale De Chauffage Industriel Pillard Brûleurs à combustible liquide et gazeux à faible émission d'oxyde d'azote
FR2766557A1 (fr) * 1997-07-22 1999-01-29 Pillard Chauffage Bruleurs a combustible liquide et gazeux a faible emission d'oxydes d'azote

Also Published As

Publication number Publication date
DE3669581D1 (de) 1990-04-19
DE3600665C1 (de) 1987-07-16
EP0229231B1 (fr) 1990-03-14
EP0229231A3 (en) 1988-08-31
ATE51065T1 (de) 1990-03-15

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