EP0915290A1 - Méthode pour combustion des combustibles en poussière à un chauffage tangentiel et chauffage tangentiel - Google Patents

Méthode pour combustion des combustibles en poussière à un chauffage tangentiel et chauffage tangentiel Download PDF

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Publication number
EP0915290A1
EP0915290A1 EP98119273A EP98119273A EP0915290A1 EP 0915290 A1 EP0915290 A1 EP 0915290A1 EP 98119273 A EP98119273 A EP 98119273A EP 98119273 A EP98119273 A EP 98119273A EP 0915290 A1 EP0915290 A1 EP 0915290A1
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EP
European Patent Office
Prior art keywords
burner
combustion chamber
air
swirl
aligned
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Withdrawn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
EP98119273A
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German (de)
English (en)
Inventor
Hans-Ulrich Dr. Thierbach
Wolfgang Schreier
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.)
Hitachi Zosen Inova Steinmueller GmbH
Original Assignee
L&C Steinmueller 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 L&C Steinmueller GmbH filed Critical L&C Steinmueller GmbH
Publication of EP0915290A1 publication Critical patent/EP0915290A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08—Disposition of burners
    • F23C5/32—Disposition of burners to obtain rotating flames, i.e. flames moving helically or spirally
    • 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 
    • F23C1/00—Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air
    • F23C1/12—Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air gaseous and pulverulent 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
    • F23C7/02—Disposition of air supply not passing through burner

Definitions

  • the invention relates to a method for burning fuel dust in a vertical firebox with an essentially square cross-section, at least in at least one horizontal plane in each combustion chamber wall a fuel dust burner is arranged from each fuel dust burner at least one fuel-air mixture (primary air) and secondary air Blown tangentially into the firebox aligned to an imaginary circle and the combustion chamber requires additional air for combustion is fed.
  • a fuel dust burner is arranged from each fuel dust burner at least one fuel-air mixture (primary air) and secondary air Blown tangentially into the firebox aligned to an imaginary circle and the combustion chamber requires additional air for combustion is fed.
  • This object is achieved in that to build a swirl burner Secondary air envelops the primary air and the primary air and / or the secondary air are twisted that the swirl burner is essentially perpendicular to the Firebox wall is aligned, and that between each swirl burner and an adjacent combustion chamber wall aligned with a second imaginary one A gas is blown into the combustion chamber in the same horizontal plane is, the injection of primary air and / or secondary air on the one hand and on the other hand can be trimmed by gas.
  • the swirl burner is aligned perpendicular to the combustion chamber wall and so arranged in the wall, that it is aligned tangentially to the imaginary circle, i.e. it takes place an eccentric arrangement in the wall. Because in the same horizontal plane between the swirl burner and an adjacent combustion chamber wall a gas directed onto a second imaginary circle is blown in there can be a pulse match between the swirl burner and the gas jet can be achieved, thereby controlling the swirl of the Fire roller in the firebox is enabled.
  • the gas can be thought of as at least one larger second Circle aligned and between the swirl burner and its neighboring Air in the combustion chamber wall is blown into the combustion chamber become.
  • the air supply to the swirl burner e.g. trim of the secondary air
  • the twist of the fire roller in the firebox can be adjusted.
  • the combustion chamber 1 shown in FIG. 1 has an essentially square one Cross-section and is limited by four combustion chamber walls 2-5.
  • every combustion chamber wall is provided with three swirl burners 6 arranged one above the other Burner assembly 7 arranged.
  • the burners 6 are each in one Horizontal plane and in the associated side wall by the amount E eccentrically offset and extend perpendicular to the combustion chamber wall.
  • the offset E corresponds to the radius of a to the central axis 8 of the Firebox 1 concentric imaginary circle K1, i.e. the axis A of the Brenners is tangent to the circle K1.
  • Swirl burners are known per se and have at least one primary air pipe 9, through which a fuel dust-air mixture can be inserted into the combustion chamber, and a secondary air pipe 10, which envelops the primary air pipe 9.
  • Other tubes are conceivable, such as. B. a core air tube in the primary air tube and one surrounding the secondary air tube Step air pipe, whereby between secondary air and step air if necessary also an air curtain can be blown into the combustion chamber.
  • the secondary air is by means of a swirl device 11 swirls so that a flame with internal Backflow area can build.
  • the twist is shown schematically by the arrows P. shown.
  • the offset of the burner is used for construction an ascending fire roller rotating counterclockwise in FIG. 2, the flow areas to be assigned to the individual burners F mesh with each other.
  • an air nozzle 12 is provided in wall 3, whose beam is tangent to a larger circle concentric to circle K1 K2 is aligned.
  • nozzle 12 as close as possible to wall 2 can also be done in a simple manner Way the firebox wall 2 are protected against corrosion.
  • the same Configuration can be found in the other firebox walls 2, 5, 4.
  • the swirl burner 6 aligned on a circle K1 is assigned a further swirl burner 13, which is aligned on a larger circle K2.
  • the swirl of the fire roller in the combustion chamber can also be controlled or regulated.
  • the burner 13 is also oriented perpendicular to the combustion chamber wall. The swirl burners 6 and 13 are operated with opposite swirl P 6 to P 13 .
  • a swirl burner assembly 14 which consists of two partial burners 14a and 14b.
  • the two partial burners are arranged in the wall assigned to them in such a way that the central axis 11 of the structural unit is aligned with the circle K1. This provides another means of trimming the impulse of the fire roller in the combustion chamber.
  • the swirl P 14a and P 14b of the two partial burners is in opposite directions.
  • trim air nozzle 12 only one trim air nozzle 12 is shown, while in 1, two trim air nozzles 12 are shown. It is possible with at least one or more trim air nozzles 12 to work.
  • each burner 6 in FIG. 1 has an upper step air nozzle 15 and are arranged in each burner assembly 7 or half of the uppermost burner 6 So-called upper air nozzles 16 assigned, the distribution of which eccentrically arranged axes A of the burner assembly 7 is aligned, i.e. in the in Fig.1. shown three upper air nozzles 16 is the middle nozzle in the vertical plane spanned by the burner axes A. The total upper air supports the swirl of the fire roller in the combustion chamber.

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)
EP98119273A 1997-11-08 1998-10-13 Méthode pour combustion des combustibles en poussière à un chauffage tangentiel et chauffage tangentiel Withdrawn EP0915290A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19749431 1997-11-08
DE1997149431 DE19749431C1 (de) 1997-11-08 1997-11-08 Verfahren zum Verbrennen von Brennstoffstaub in einer Tangentialfeuerung und Tangentialfeuerung zur Durchführung des Verfahrens

Publications (1)

Publication Number Publication Date
EP0915290A1 true EP0915290A1 (fr) 1999-05-12

Family

ID=7848052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98119273A Withdrawn EP0915290A1 (fr) 1997-11-08 1998-10-13 Méthode pour combustion des combustibles en poussière à un chauffage tangentiel et chauffage tangentiel

Country Status (3)

Country Link
EP (1) EP0915290A1 (fr)
DE (1) DE19749431C1 (fr)
ZA (1) ZA9810172B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10019114A1 (de) * 2000-04-18 2001-10-25 Bbp Energy Gmbh Feuerung und Verfahren zur Verbrennung von Kohlenstaub
EP2233833A4 (fr) * 2008-01-23 2016-04-13 Mitsubishi Heavy Ind Ltd Structure de chaudière
CN106287678A (zh) * 2016-08-23 2017-01-04 中节环(北京)能源技术有限公司 切圆煤粉燃烧锅炉中煤粉射流的中下游的燃烧组织方法
WO2022028275A1 (fr) * 2020-08-04 2022-02-10 上海交通大学 Brûleur à charbon pulvérisé à courant continu en forme d'anneau géant disposé sur une paroi

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT185918B (de) * 1951-06-07 1956-06-25 Kohlenscheidungs Gmbh Kohlenstaub-Schmelzfeuerung
DE1109306B (de) * 1956-11-19 1961-06-22 Prvni Brnenska Strojirna Zd Y Verfahren zum Betreiben einer Schmelz- oder Granulierkammerfeuerung
EP0238907A2 (fr) * 1986-03-24 1987-09-30 Combustion Engineering, Inc. Combustion tangentielle à bas excédent d'air
ATE45621T1 (de) * 1985-05-03 1989-09-15 Charbonnages De France Verfahren zur verbrennung von fliessfaehigen brennstoffen und wirbelbrenner zur durchfuehrung des verfahrens.
EP0405294A2 (fr) * 1989-06-24 1991-01-02 Balcke-Dürr AG Dispositif de combustion des combustibles dans une chambre de combustion

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966616C (de) * 1951-11-25 1957-08-29 Babcock & Wilcox Dampfkessel W Brennstaub-Eckenfeuerung
JP2540636B2 (ja) * 1989-11-20 1996-10-09 三菱重工業株式会社 ボイラ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT185918B (de) * 1951-06-07 1956-06-25 Kohlenscheidungs Gmbh Kohlenstaub-Schmelzfeuerung
DE1109306B (de) * 1956-11-19 1961-06-22 Prvni Brnenska Strojirna Zd Y Verfahren zum Betreiben einer Schmelz- oder Granulierkammerfeuerung
ATE45621T1 (de) * 1985-05-03 1989-09-15 Charbonnages De France Verfahren zur verbrennung von fliessfaehigen brennstoffen und wirbelbrenner zur durchfuehrung des verfahrens.
EP0238907A2 (fr) * 1986-03-24 1987-09-30 Combustion Engineering, Inc. Combustion tangentielle à bas excédent d'air
EP0405294A2 (fr) * 1989-06-24 1991-01-02 Balcke-Dürr AG Dispositif de combustion des combustibles dans une chambre de combustion

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10019114A1 (de) * 2000-04-18 2001-10-25 Bbp Energy Gmbh Feuerung und Verfahren zur Verbrennung von Kohlenstaub
EP2233833A4 (fr) * 2008-01-23 2016-04-13 Mitsubishi Heavy Ind Ltd Structure de chaudière
CN106287678A (zh) * 2016-08-23 2017-01-04 中节环(北京)能源技术有限公司 切圆煤粉燃烧锅炉中煤粉射流的中下游的燃烧组织方法
CN106287678B (zh) * 2016-08-23 2018-09-04 中节环(北京)能源技术有限公司 切圆煤粉燃烧锅炉中煤粉射流的中下游的燃烧组织方法
WO2022028275A1 (fr) * 2020-08-04 2022-02-10 上海交通大学 Brûleur à charbon pulvérisé à courant continu en forme d'anneau géant disposé sur une paroi

Also Published As

Publication number Publication date
ZA9810172B (en) 1999-05-04
DE19749431C1 (de) 1999-03-18

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