EP0849529A3 - Tangential entry fuel nozzle - Google Patents

Tangential entry fuel nozzle Download PDF

Info

Publication number
EP0849529A3
EP0849529A3 EP97310463A EP97310463A EP0849529A3 EP 0849529 A3 EP0849529 A3 EP 0849529A3 EP 97310463 A EP97310463 A EP 97310463A EP 97310463 A EP97310463 A EP 97310463A EP 0849529 A3 EP0849529 A3 EP 0849529A3
Authority
EP
European Patent Office
Prior art keywords
fuel
air
nozzle
scrolls
centerbody
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
EP97310463A
Other languages
German (de)
French (fr)
Other versions
EP0849529A2 (en
EP0849529B1 (en
Inventor
Timothy S. Snyder
William A. Sowa
Stephen K. Kramer
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.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
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
Priority claimed from US08/771,408 external-priority patent/US5899076A/en
Priority claimed from US08/771,409 external-priority patent/US5896739A/en
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of EP0849529A2 publication Critical patent/EP0849529A2/en
Publication of EP0849529A3 publication Critical patent/EP0849529A3/en
Application granted granted Critical
Publication of EP0849529B1 publication Critical patent/EP0849529B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F23C7/002—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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/30—Arrangement of components
    • F05B2250/32—Arrangement of components according to their shape
    • F05B2250/322—Arrangement of components according to their shape tangential
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

A method of reducing the tendency of the combustion flame to attach to the centerbody of a tangential entry nozzle 10 is disclosed which comprises mixing fuel and air in a mixing zone 28 within a fuel nozzle assembly, thereby producing a first fuel/air mixture, which is isolated from the combustion products by maintaining sufficiently high axial velocities throughout the mixing zone.
The nozzle has a longitudinal axis 26 and two cylindrical-arc scrolls 22,24 with the centerline of each offset from that of the other. Overlapping ends of these scrolls form an air inlet slot therebetween for the introduction of an air/fuel mixture into the fuel nozzle. A combustor-end endplate 18 has a central opening 20 to permit air and fuel to exit into a combustor, while at the opposite end another endplate 16 blocks the nozzle flow area. The scrolls are secured between these endplates. A centerbody 12 is located between the scrolls coaxial with the axis. The centerbody 12 has a base 58 which includes at least one air supply port extending therethrough, and an internal passageway 64. It includes a frustum portion (54) and aerodynamic ramps theat prevent flow reversal and flame stabilisation between the endplates 16,18.
EP19970310463 1996-12-20 1997-12-22 Tangential entry fuel nozzle Expired - Lifetime EP0849529B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US771409 1985-08-30
US08/771,408 US5899076A (en) 1996-12-20 1996-12-20 Flame disgorging two stream tangential entry nozzle
US771408 1996-12-20
US08/771,409 US5896739A (en) 1996-12-20 1996-12-20 Method of disgorging flames from a two stream tangential entry nozzle

Publications (3)

Publication Number Publication Date
EP0849529A2 EP0849529A2 (en) 1998-06-24
EP0849529A3 true EP0849529A3 (en) 1999-06-09
EP0849529B1 EP0849529B1 (en) 2004-03-03

Family

ID=27118459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970310463 Expired - Lifetime EP0849529B1 (en) 1996-12-20 1997-12-22 Tangential entry fuel nozzle

Country Status (2)

Country Link
EP (1) EP0849529B1 (en)
DE (1) DE69727899T2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6141954A (en) 1998-05-18 2000-11-07 United Technologies Corporation Premixing fuel injector with improved flame disgorgement capacity
CN113669726B (en) * 2021-09-26 2022-10-21 西安热工研究院有限公司 Hydrogen fuel combustion device
DE102022207493A1 (en) * 2022-07-21 2024-02-01 Rolls-Royce Deutschland Ltd & Co Kg Connection device for flow connection between a fuel supply system and a nozzle device, nozzle device and gas turbine arrangement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995023316A1 (en) * 1994-02-24 1995-08-31 United Technologies Corporation Tangential entry fuel nozzle
WO1996019699A1 (en) * 1994-12-22 1996-06-27 United Technologies Corporation LOW NOx FUEL NOZZLE ASSEMBLY
EP0778445A2 (en) * 1995-12-05 1997-06-11 Asea Brown Boveri Ag Premix burner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307634A (en) 1992-02-26 1994-05-03 United Technologies Corporation Premix gas nozzle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995023316A1 (en) * 1994-02-24 1995-08-31 United Technologies Corporation Tangential entry fuel nozzle
WO1996019699A1 (en) * 1994-12-22 1996-06-27 United Technologies Corporation LOW NOx FUEL NOZZLE ASSEMBLY
EP0778445A2 (en) * 1995-12-05 1997-06-11 Asea Brown Boveri Ag Premix burner

Also Published As

Publication number Publication date
DE69727899D1 (en) 2004-04-08
EP0849529A2 (en) 1998-06-24
EP0849529B1 (en) 2004-03-03
DE69727899T2 (en) 2004-07-29

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