EP0833104B1 - Brenner zum Betrieb einer Brennkammer - Google Patents

Brenner zum Betrieb einer Brennkammer Download PDF

Info

Publication number
EP0833104B1
EP0833104B1 EP97810621A EP97810621A EP0833104B1 EP 0833104 B1 EP0833104 B1 EP 0833104B1 EP 97810621 A EP97810621 A EP 97810621A EP 97810621 A EP97810621 A EP 97810621A EP 0833104 B1 EP0833104 B1 EP 0833104B1
Authority
EP
European Patent Office
Prior art keywords
flow
burner
section
burner according
torus
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.)
Expired - Lifetime
Application number
EP97810621A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0833104A2 (de
EP0833104A3 (de
Inventor
Klaus Dr. Döbbeling
Hans Peter Knöpfel
Donald Frank Walker
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.)
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
Original Assignee
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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 ABB Research Ltd Switzerland, ABB Research Ltd Sweden filed Critical ABB Research Ltd Switzerland
Publication of EP0833104A2 publication Critical patent/EP0833104A2/de
Publication of EP0833104A3 publication Critical patent/EP0833104A3/de
Application granted granted Critical
Publication of EP0833104B1 publication Critical patent/EP0833104B1/de
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
    • 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
    • F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
    • 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
    • F23D11/402—Mixing chambers downstream of the nozzle
    • 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
    • F23C2202/40—Inducing local whirls around flame
    • 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
    • F23C2900/07002—Premix burners with air inlet slots obtained between offset curved wall surfaces, e.g. double cone burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2209/00—Safety arrangements
    • F23D2209/20—Flame lift-off / stability
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2214/00—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/00015—Pilot burners specially adapted for low load or transient conditions, e.g. for increasing stability

Definitions

  • the present invention relates to a burner according to the preamble of claim 1.
  • the upstream side consists of a swirl generator
  • Transition channels exist, which are sectoral, according to the Number of acting partial bodies of the swirl generator, the end face the mixing section and in the direction of flow twisted.
  • the mixing section has a number of filming holes on what an increase in flow velocity ensure along the pipe wall.
  • a combustion chamber the transition between the mixing section and the combustion chamber through a cross-sectional jump is formed, in the plane of which is a backflow zone or Backflow bubble forms.
  • the swirl strength in the swirl generator is selected so that that the swirl does not burst within the mixing section, but continues downstream, as stated above in the area of the cross-sectional jump.
  • the length of the mixing section is dimensioned so that an adequate Mixing quality is guaranteed for all types of fuel.
  • the invention seeks to remedy this.
  • the invention how it is characterized in the claims, the task lies based on precautions for a burner of the type mentioned propose which a strengthening of flame stability and an adaptation of the flame to the given one Combustion chamber geometry does this without the other advantages To diminish Brenners in any way.
  • the burner front is at the end of the mixing section in the plane of the cross-sectional jump on the combustion chamber side formed with a torus or torus-like notch.
  • This configuration means that the Mixing section flowing combustion air to the in the torus creating flow, with which the swirl number of the main flow rises sharply.
  • Another embodiment of the invention relates to the relocation the head-side fuel nozzle opposite the inflow the combustion air in a conical shape Swirl generator with tangential air inlet slots.
  • This misalignment leads to the mouth of the fuel nozzle upstream of the inflow area, so that Fuel spray from the fuel nozzle with a larger one Spray radius can be injected into the main flow.
  • This precaution is achieved in that the fuel spray first contact with the combustion air from a film has decayed into drops, and the conical surface of this Fuel sprays in this area increased by a factor has what improves the spread of the fuel spray and does not hinder the inflow of combustion air.
  • Another advantage of the invention is that the purge air through the openings in the area of the mouth Fuel nozzle wetting the inner wall of the conical Swirl generator prevented.
  • Fig. 1 shows the overall structure of a burner.
  • a swirl generator 100 effective, the design of which in the following Fig. 2-5 shown and described in more detail becomes.
  • This swirl generator 100 is a conical structure, the tangential multiple of a tangential inflowing combustion air flow 115 is applied becomes.
  • the flow that forms here is based on a transition geometry provided downstream of the swirl generator 100 transitioned seamlessly into a transition piece 200, in such a way that no separation areas can occur there.
  • the configuration of this transition geometry is under Fig. 6 described in more detail.
  • This transition piece is 200 downstream of the transition geometry through a mixing tube 20 extended, both parts of the actual mixing section Form 220.
  • the mixing section 220 can consist of a single piece, i.e.
  • the conical shape of the partial bodies 101, 102 shown in the flow direction has a specific fixed angle.
  • the partial bodies 101, 102 can have an increasing or decreasing cone inclination in the flow direction, similar to a trumpet or. Tulip. The last two forms are not included in the drawing, since they can be easily understood by a person skilled in the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Spray-Type Burners (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
EP97810621A 1996-09-25 1997-09-02 Brenner zum Betrieb einer Brennkammer Expired - Lifetime EP0833104B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19639301A DE19639301A1 (de) 1996-09-25 1996-09-25 Brenner zum Betrieb einer Brennkammer
DE19639301 1996-09-25

Publications (3)

Publication Number Publication Date
EP0833104A2 EP0833104A2 (de) 1998-04-01
EP0833104A3 EP0833104A3 (de) 1998-07-29
EP0833104B1 true EP0833104B1 (de) 2001-04-11

Family

ID=7806802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810621A Expired - Lifetime EP0833104B1 (de) 1996-09-25 1997-09-02 Brenner zum Betrieb einer Brennkammer

Country Status (4)

Country Link
EP (1) EP0833104B1 (ja)
JP (1) JP3904684B2 (ja)
CN (1) CN1109843C (ja)
DE (2) DE19639301A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859829A1 (de) 1998-12-23 2000-06-29 Abb Alstom Power Ch Ag Brenner zum Betrieb eines Wärmeerzeugers
IT1313547B1 (it) 1999-09-23 2002-07-24 Nuovo Pignone Spa Camera di premiscelamento per turbine a gas
DE10128063A1 (de) 2001-06-09 2003-01-23 Alstom Switzerland Ltd Brennersystem
DE10233161B4 (de) * 2002-07-22 2012-01-05 Alstom Technology Ltd. Brenner und Pilotbrenner
EP1389713A1 (en) * 2002-08-12 2004-02-18 ALSTOM (Switzerland) Ltd Premixed exit ring pilot burner
CN101069039B (zh) * 2004-11-30 2011-10-19 阿尔斯托姆科技有限公司 用于在预混合燃烧器中燃烧氢气的方法和设备
EP2703721B1 (en) * 2012-08-31 2019-05-22 Ansaldo Energia IP UK Limited Premix burner
CN115059917B (zh) * 2022-06-24 2024-06-18 北京理工大学 一种带收缩段的高速多相射流燃烧器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806517A (en) * 1950-11-16 1957-09-17 Shell Dev Oil atomizing double vortex burner
US4373325A (en) * 1980-03-07 1983-02-15 International Harvester Company Combustors
US4561841A (en) * 1980-11-21 1985-12-31 Donald Korenyi Combustion apparatus
JPH07190308A (ja) * 1993-12-28 1995-07-28 Hitachi Ltd 旋回型バーナ
DE4435266A1 (de) * 1994-10-01 1996-04-04 Abb Management Ag Brenner
DE19547912A1 (de) * 1995-12-21 1997-06-26 Abb Research Ltd Brenner für einen Wärmeerzeuger

Also Published As

Publication number Publication date
JP3904684B2 (ja) 2007-04-11
DE59703346D1 (de) 2001-05-17
CN1185559A (zh) 1998-06-24
EP0833104A2 (de) 1998-04-01
CN1109843C (zh) 2003-05-28
EP0833104A3 (de) 1998-07-29
DE19639301A1 (de) 1998-03-26
JPH10103620A (ja) 1998-04-21

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