EP0122526A1 - Injecteur de combustible pour la chambre de combustion d'une turbine à gaz - Google Patents

Injecteur de combustible pour la chambre de combustion d'une turbine à gaz Download PDF

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Publication number
EP0122526A1
EP0122526A1 EP84103522A EP84103522A EP0122526A1 EP 0122526 A1 EP0122526 A1 EP 0122526A1 EP 84103522 A EP84103522 A EP 84103522A EP 84103522 A EP84103522 A EP 84103522A EP 0122526 A1 EP0122526 A1 EP 0122526A1
Authority
EP
European Patent Office
Prior art keywords
fuel
combustion chamber
lance
nozzle outlet
passage openings
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
EP84103522A
Other languages
German (de)
English (en)
Other versions
EP0122526B1 (fr
Inventor
Laan Dr. Hellat
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of EP0122526A1 publication Critical patent/EP0122526A1/fr
Application granted granted Critical
Publication of EP0122526B1 publication Critical patent/EP0122526B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2206/00—Burners for specific applications
    • F23D2206/10—Turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2210/00—Noise abatement

Definitions

  • the invention relates to a fuel lance according to the preamble of patent claim 1.
  • Self-excited vibrations can occur in combustion chambers, which are based on a modulation of the gaseous fuel or fuel-air mixture quantity injected into the combustion chamber by pressure fluctuations in the nozzle plane.
  • the feedback loop necessary for self-excitation is closed when the changes in the fuel conversion in the flame caused by the supply fluctuations meet a phase condition with the chamber pressure.
  • a classic example of this is the so-called "singing flame”.
  • the object of the invention is to provide a burner which combines the above-described decoupling of the burner fuel line to avoid combustion chamber vibrations with the possibility of regulating the amount of fuel.
  • the advantage of the invention can essentially be seen in the fact that a fuel lance is created in a relatively simple manner, which combines both a decoupling of the fuel line to avoid combustion chamber vibrations and the possibility of regulating the amount of fuel in a compact manner.
  • the decoupling is effective insofar as the distance between the throttle body and Nozzle outlet can be kept much shorter than the wavelength of typical natural vibrations of the combustion chamber system.
  • the fuel lance can optionally be designed with a central or radial nozzle outlet.
  • the throttle body also acts as a flame arrester.
  • a fuel lance 1 which is part of a burner, not shown, which in turn is part of a combustion chamber, also not shown, for example a gas turbine.
  • the burner can be, for example, a diffusion burner with a swirled air supply.
  • the fuel lance 1 consists of a lance tube 2 with a central nozzle outlet 3. Upstream of the lance tube 2, the fuel lance 1 is formed by a bush 4 in which an axially adjustable tubular throttle body 5 is guided. The fuel 7 is supplied through the pipe interior 6. Downstream, the tube wall 8 in the unguided part of the throttle body 5 is provided with fuel passage openings 9 in the circumferential direction and in the axial direction. Both their number and arrangement are arbitrary; As far as the shape is concerned, holes or slots can be provided, for example. As far as the number and size of the fuel passage openings 9 are concerned, they depend on the maximum required throughput of the respective burner.
  • the lance tube 2 carries a stamp 10 in the interior of the tube, which is mounted centrally to the tube interior 6 of the throttle body 5 by means of webs 11 - as are usually used to support inner bodies when cross-sections flow through.
  • a seal 12 also placed there ensures that the fuel passage openings 9 located above the plunger 10 in the respective axial position of the throttle body 5 are closed gas-tight.
  • the gas tightness between the throttle body 5 and the sleeve 4 is brought about by a seal 13.
  • the released flow cross section thus depends on the respective penetration depth of the plunger 10 relative to the throttle body 5. If the ratio of the fuel pressure in the supply line to the pressure at the nozzle outlet 3 exceeds a critical value, the fuel 7 flows through the fuel passage openings 9 in the throttle body 5 at the speed of sound, so that pressure disturbances running upstream from the nozzle outlet 3 cause the pressure from the combustion Material passage openings 9 can no longer influence emerging fuel quantity 7a. In terms of design, it is important to note that the distance between fuel passage openings 9 and nozzle outlet 3 or 15 is considerably shorter than the wavelength of typical natural vibrations of the combustion chamber system.
  • FIG. 2 similar to FIG. 1, a greatly simplified illustration of a fuel lance 1 is also shown.
  • This embodiment is distinguished from FIG. 1 by the difference that the fuel quantity 7a flowing through now emerges radially from the fuel lance 1.
  • the lance tube 2 is continuously cylindrical and is open on the nozzle outlet side.
  • the punch 10 is extended over the webs 11 and carries a central body 14 at its end. The opening between the end of the lance tube 2 and the inside runout curve of the central body 14 forms the radial nozzle outlet 15.
  • the fuel 7 is fed directly through the fuel lance 1. Downstream the lance tube 2 runs into a bushing 16 which extends up to the central nozzle outlet 3.
  • the throttle body 5 is a spindle which is only tubularly recessed at the end and only over a certain length.
  • the fuel passage openings 9 are also provided in this section.
  • the inner diameter of the sleeve 16 also forms the opening to the central nozzle outlet 3.
  • the fuel flows through that combustion Substance passage openings 9, which are still in use due to the fuel quantity regulation, ie are not yet covered by the sleeve 16.
  • the fuel 7 flows from the outside into the interior of the throttle body 5 in order to reach the nozzle outlet 3 from here.
  • Fig. 4 shows a lance tube 2 open on both sides, which is divided in the middle by a constriction 17.
  • the constriction fulfills the same function as the bush 16, described under FIG. 3.
  • the central body 14 enables a radial nozzle outlet 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Spray-Type Burners (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP84103522A 1983-04-13 1984-03-30 Injecteur de combustible pour la chambre de combustion d'une turbine à gaz Expired EP0122526B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH198883 1983-04-13
CH1988/83 1983-04-13

Publications (2)

Publication Number Publication Date
EP0122526A1 true EP0122526A1 (fr) 1984-10-24
EP0122526B1 EP0122526B1 (fr) 1987-05-20

Family

ID=4223287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103522A Expired EP0122526B1 (fr) 1983-04-13 1984-03-30 Injecteur de combustible pour la chambre de combustion d'une turbine à gaz

Country Status (4)

Country Link
US (1) US4761958A (fr)
EP (1) EP0122526B1 (fr)
JP (1) JPS59197736A (fr)
DE (1) DE3463836D1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0394629A2 (fr) * 1989-04-22 1990-10-31 Caldyn Apparatebau Gmbh Dispositif de pulvérisation de fluide ou pour mettre un gaz sous forme de petites bulles
US5218824A (en) * 1992-06-25 1993-06-15 Solar Turbines Incorporated Low emission combustion nozzle for use with a gas turbine engine
EP0571984A1 (fr) * 1992-05-27 1993-12-01 Praxair Technology, Inc. Lance composite
EP0962699A2 (fr) * 1998-05-30 1999-12-08 ROLLS-ROYCE plc Injecteur de carburant
WO2000034715A1 (fr) * 1998-12-09 2000-06-15 Abb Alstom Power Uk Ltd. Modification de la dynamique de reaction de combustion
WO2000034714A1 (fr) * 1998-12-08 2000-06-15 Siemens Aktiengesellschaft Dispositif de combustion et procede de combustion d'un combustible
EP1096201A1 (fr) * 1999-10-29 2001-05-02 Siemens Aktiengesellschaft Brûleur
US9945725B2 (en) 2012-02-16 2018-04-17 Heimann Sensor Gmbh Thermopile infrared sensor structure with a high filling level

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5943866A (en) * 1994-10-03 1999-08-31 General Electric Company Dynamically uncoupled low NOx combustor having multiple premixers with axial staging
US6269646B1 (en) 1998-01-28 2001-08-07 General Electric Company Combustors with improved dynamics
ATE428047T1 (de) 1998-05-04 2009-04-15 Xrdi Mehrbrennstoffmotor
GB9827051D0 (en) * 1998-12-09 1999-02-03 Alstom Gas Turbines Ltd Gas reaction chamber
FR2822940A1 (fr) * 2001-08-10 2002-10-04 Air Liquide Procede, lance et tuyere d'injection d'oxygene radialement dans un four
DE10164099A1 (de) * 2001-12-24 2003-07-03 Alstom Switzerland Ltd Brenner mit gestufter Brennstoffeinspritzung
US6820431B2 (en) * 2002-10-31 2004-11-23 General Electric Company Acoustic impedance-matched fuel nozzle device and tunable fuel injection resonator assembly
US9267428B2 (en) 2012-02-27 2016-02-23 Deec, Inc. Oxygen-rich plasma generators for boosting internal combustion engines
KR102437648B1 (ko) 2016-03-07 2022-08-29 하이테크 파워, 인크. 내연 엔진용 제 2 연료를 생성 및 분배하는 방법
CN107062307B (zh) * 2017-05-09 2023-06-20 新奥能源动力科技（上海）有限公司 一种燃气轮机燃烧室
US20190234348A1 (en) 2018-01-29 2019-08-01 Hytech Power, Llc Ultra Low HHO Injection
JP6950876B2 (ja) * 2018-09-06 2021-10-13 株式会社Ihi 液体燃料噴射体

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE330857C (de) * 1918-09-06 1920-12-22 Selas Akt Ges Gasbrenner fuer Niederdruckgasfeuerungen mit gleichzeitiger Regelung der Gas- und Luftzufuhr
GB805463A (en) * 1954-09-08 1958-12-03 Fuel Firing Ltd Improvements in the control of fluid flow
DE2227281A1 (de) * 1972-06-05 1973-12-20 Helmut Just Allgas-trichtermischduese fuer geblaesebrenner
FR2315051A1 (fr) * 1975-06-20 1977-01-14 Bertin & Cie Vanne insonorisee
US4036248A (en) * 1975-02-14 1977-07-19 Kubota Ltd. Valve body for sleeve valve
EP0002036A1 (fr) * 1977-11-10 1979-05-30 John Junior Maksim Brûleurs pour fours pit
EP0008842A1 (fr) * 1978-09-05 1980-03-19 John Zink Company Brûleur pour gaz combustible à pouvoir calorifique variable avec préchauffement de l'air de combustion
GB2068511A (en) * 1980-01-25 1981-08-12 Kubota Ltd Valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2775484A (en) * 1953-08-31 1956-12-25 Phillips Petroleum Co Viscosity compensating variable-area fuel nozzle
GB1051666A (fr) * 1962-01-10 1900-01-01
DE1919488B2 (de) * 1969-04-17 1971-11-18 Mtu Muenchen Gmbh Brennstoffeinspritzeinrichtung fuer gasturbinen
US3695037A (en) * 1970-09-08 1972-10-03 Teledyne Ind Shaft mounted fuel control
US3726088A (en) * 1971-08-20 1973-04-10 Us Navy On-demand variable flow closed loop gas generator system with a variable area injector

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE330857C (de) * 1918-09-06 1920-12-22 Selas Akt Ges Gasbrenner fuer Niederdruckgasfeuerungen mit gleichzeitiger Regelung der Gas- und Luftzufuhr
GB805463A (en) * 1954-09-08 1958-12-03 Fuel Firing Ltd Improvements in the control of fluid flow
DE2227281A1 (de) * 1972-06-05 1973-12-20 Helmut Just Allgas-trichtermischduese fuer geblaesebrenner
US4036248A (en) * 1975-02-14 1977-07-19 Kubota Ltd. Valve body for sleeve valve
FR2315051A1 (fr) * 1975-06-20 1977-01-14 Bertin & Cie Vanne insonorisee
EP0002036A1 (fr) * 1977-11-10 1979-05-30 John Junior Maksim Brûleurs pour fours pit
EP0008842A1 (fr) * 1978-09-05 1980-03-19 John Zink Company Brûleur pour gaz combustible à pouvoir calorifique variable avec préchauffement de l'air de combustion
GB2068511A (en) * 1980-01-25 1981-08-12 Kubota Ltd Valve

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0394629A3 (fr) * 1989-04-22 1991-08-14 Caldyn Apparatebau Gmbh Dispositif de pulvérisation de fluide ou pour mettre un gaz sous forme de petites bulles
EP0394629A2 (fr) * 1989-04-22 1990-10-31 Caldyn Apparatebau Gmbh Dispositif de pulvérisation de fluide ou pour mettre un gaz sous forme de petites bulles
EP0571984A1 (fr) * 1992-05-27 1993-12-01 Praxair Technology, Inc. Lance composite
US5218824A (en) * 1992-06-25 1993-06-15 Solar Turbines Incorporated Low emission combustion nozzle for use with a gas turbine engine
EP0962699A2 (fr) * 1998-05-30 1999-12-08 ROLLS-ROYCE plc Injecteur de carburant
EP0962699A3 (fr) * 1998-05-30 2000-02-23 ROLLS-ROYCE plc Injecteur de carburant
US6615587B1 (en) 1998-12-08 2003-09-09 Siemens Aktiengesellschaft Combustion device and method for burning a fuel
WO2000034714A1 (fr) * 1998-12-08 2000-06-15 Siemens Aktiengesellschaft Dispositif de combustion et procede de combustion d'un combustible
WO2000034715A1 (fr) * 1998-12-09 2000-06-15 Abb Alstom Power Uk Ltd. Modification de la dynamique de reaction de combustion
WO2001033138A1 (fr) * 1999-10-29 2001-05-10 Siemens Aktiengesellschaft Bruleur
EP1096201A1 (fr) * 1999-10-29 2001-05-02 Siemens Aktiengesellschaft Brûleur
US6688109B2 (en) 1999-10-29 2004-02-10 Siemens Aktiengesellschaft Turbine engine burner
US9945725B2 (en) 2012-02-16 2018-04-17 Heimann Sensor Gmbh Thermopile infrared sensor structure with a high filling level

Also Published As

Publication number Publication date
EP0122526B1 (fr) 1987-05-20
JPH0531050B2 (fr) 1993-05-11
US4761958A (en) 1988-08-09
JPS59197736A (ja) 1984-11-09
DE3463836D1 (en) 1987-06-25

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