EP0172303A1 - Burner for liquid fuels, especially fuels containing solid particles - Google Patents

Burner for liquid fuels, especially fuels containing solid particles Download PDF

Info

Publication number
EP0172303A1
EP0172303A1 EP85101685A EP85101685A EP0172303A1 EP 0172303 A1 EP0172303 A1 EP 0172303A1 EP 85101685 A EP85101685 A EP 85101685A EP 85101685 A EP85101685 A EP 85101685A EP 0172303 A1 EP0172303 A1 EP 0172303A1
Authority
EP
European Patent Office
Prior art keywords
section
fuel
mixing
channel
burner
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
EP85101685A
Other languages
German (de)
French (fr)
Other versions
EP0172303B1 (en
Inventor
Kurt Lohoff
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
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 Deutsche Babcock Werke AG filed Critical Deutsche Babcock Werke AG
Priority to AT85101685T priority Critical patent/ATE34446T1/en
Publication of EP0172303A1 publication Critical patent/EP0172303A1/en
Application granted granted Critical
Publication of EP0172303B1 publication Critical patent/EP0172303B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • F23D1/005—Burners for combustion of pulverulent fuel burning a mixture of pulverulent fuel delivered as a slurry, i.e. comprising a carrying liquid
    • 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
    • F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/101—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
    • F23D11/102—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber

Definitions

  • the invention relates to a burner for liquid fuels, in particular containing solid components, with the features of the preamble of claim 1.
  • the fuel is brought together with the atomizing medium in the mixing space inside the nozzle and mixed with one another.
  • the resulting emulsion is distributed into the combustion chamber via the outlet holes.
  • the quantity-determining cross sections for the fuel and the atomizing medium are upstream of the mixing chamber and the outlet bores. This means that the pressure is converted into speed on the material of the nozzle and in two stages. If the liquid fuel contains solid parts, for example in the form of a coal dust oil or water suspension, the solid parts have an abrasive effect on the narrowest cross section. The wear caused by this shortens the life of the nozzle heads of the burners.
  • the invention has for its object to design a generic burner such that the wear of the inner parts of the nozzle head is reduced.
  • the speeds in the channel carrying fuel are so low that significant wear is not expected.
  • the quantity-determining cross section of the atomizing medium is fed in the form of a hollow cylinder, which enveloping uel stream wraps around the liquid B.
  • the liquid fuel is thus drawn into the high-speed stream of the atomizing medium and mixed in, the edge zones of the quantity-determining cross section being acted upon primarily by the atomizing medium.
  • the quantity of the fuel is determined in the free flow of the atomizing medium without the liquid fuel with the solid components contained in it coming into contact with the metallic walls within the quantity-determining cross-section to any appreciable extent.
  • the drawing shows a longitudinal section through the nozzle head of a burner according to the invention.
  • the burner shown contains a lance tube 1, on the front end of which a nozzle head is attached.
  • a supply tube 2 is arranged within the lance tube 1 and surrounds a channel 3 for guiding the liquid fuel.
  • the liquid fuel can contain solid fractions and can be, for example, oil, a coal dust oil or a coal dust water suspension.
  • a channel 4 for the supply of an atomizing medium for example steam, compressed air or gas, is formed.
  • the channel 3 for guiding the fuel and the channel 4 for guiding the atomizing medium can also be arranged parallel to one another.
  • the inner nozzle parts are firmly clamped by a nozzle holder 5 attached to the lance tube 1 and a nozzle holder 6.
  • the downstream part of the fuel-carrying channel 3 is formed by a fuel chamber 7, the cross section of which is narrowed in the burner shown for constructional reasons compared to the clear cross section of the feed pipe 2.
  • the velocity of the flowing fuel is then necessarily slightly increased in this fuel chamber, but its cross-section does not determine the quantity.
  • the fuel chamber 7 is surrounded concentrically by a collecting chamber 8, which is connected to the channel 4 carrying the atomizing medium via a plurality of radial bores 9.
  • the collecting space 8 merges via a conical annular channel 10 into a premixing chamber 11, which is followed downstream by a mixing section 12 with a narrowest cross section.
  • This mixing section 12 lies in the same axis as the fuel chamber 7. It is flowed through by both the fuel and the atomizing medium and is therefore quantity-determining for both media.
  • a post-mixing chamber 13 is arranged downstream of the mixing section 12, in which the fuel and the atomizing medium are further mixed to form an emulsion.
  • the front end of the nozzle head is closed and receives a blind hole 14 from which exit bores 15 extend. These outlet bores 15 are arranged so that their inlet cross-sections are at a distance from the closed bottom of the nozzle head which corresponds to at least half the diameter of the blind hole 13, thereby creating a buffer zone.
  • the design of the conical annular channel 10 leads the atomizing medium through the mixing section 12 in a hollow cylindrical manner.
  • the fuel is drawn into the high speed stream of the atomizing medium and thereby mixed into the atomizing medium.
  • the atomizing medium lies against the edge zone of the mixing section 12 while the fuel is wrapped. In this way, wear of the mixing section 12 due to solid components that may be contained in the liquid fuel is largely reduced.
  • the arrangement of the blind hole 14 in the nozzle head ensures that in the flow of the emulsion of fuel and atomizing medium leaving the mixing section 12 and the post-mixing chamber 13, a back pressure occurs, by means of which the axial flow is braked.
  • the distribution of the emulsion over the cross section of the outlet bores 14 is thus much more uniform than in the case of nozzles without a blind hole, as a result of which the service life of the nozzle head is extended.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)

Abstract

1. Burner for liquid fuels containing preferentially solid matter, with a nozzle head which comprises a mixing space into which a fuel duct (3) and a pulverizing fluid duct (4) en where each flow lane shows a narrowest cross-section limiting the flow volume and where outlet bores (15) are provided downstream of the mixing space, characterized by an admission section (12) downstream of the pre-mixing space (11) type mixing space which shows the narrowest cross-section for joint feeding of the fuel and pulverizing fluid and which is jointly passed by the fuel and the pulverizing fluid so that the pulverizing fluid is led alongside the wall of the admission section (12).

Description

Die Erfindung betrifft einen Brenner für flüssige, insbesondere feste Anteile enthaltende Brennstoffe mit den Merkmalen des Oberbegriffes des Anspruches 1.The invention relates to a burner for liquid fuels, in particular containing solid components, with the features of the preamble of claim 1.

Bei derartigen bekannten Brennern wird der Brennstoff mit dem Zerstäubermedium in dem Mischraum innerhalb der Düse zusammengebracht und miteinander vermischt. Die dabei entstehende Emulsion wird über die Austrittsbohrungen in den Feuerraum verteilt. Die mengenbestimmenden Querschnitte für den Brennstoff und das Zerstäubermedium sind dem Mischraum und den Austrittsbohrungen getrennt vorgeschaltet. Das bedeutet, daß die Umsetzung von Druck in Geschwindigkeit an dem Material der Düse und zweistufig erfolgt. Enthält der flüssige Brennstoff feste Anteile, zum Beispiel in Form einer Kohlenstaub- öl- oder Wasser-Suspension, so wirken die festen Anteile abrasiv auf den engsten Querschnitt. Der dadurch bedingte Verschleiß verkürzt die Lebensdauer der Düsenköpfe der Brenner.In such known burners, the fuel is brought together with the atomizing medium in the mixing space inside the nozzle and mixed with one another. The resulting emulsion is distributed into the combustion chamber via the outlet holes. The quantity-determining cross sections for the fuel and the atomizing medium are upstream of the mixing chamber and the outlet bores. This means that the pressure is converted into speed on the material of the nozzle and in two stages. If the liquid fuel contains solid parts, for example in the form of a coal dust oil or water suspension, the solid parts have an abrasive effect on the narrowest cross section. The wear caused by this shortens the life of the nozzle heads of the burners.

Der Erfindung liegt die Aufgabe zugrunde, einen gattungsgemäßen Brenner derart auszubilden, daß der Verschleiß der inneren Teile des Düsenkopfes herabgesetzt wird.The invention has for its object to design a generic burner such that the wear of the inner parts of the nozzle head is reduced.

Diese Aufgabe wird bei einen gattungsgemäßen Brenner erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved according to the invention in a generic burner by the characterizing features of claim 1. Advantageous embodiments of the invention are specified in the subclaims.

Bei dem erfindungsgemäßen Brenner sind die Geschwindigkeiten in dem Brennstoff führenden Kanal so gering, daß ein nennenswerter Verschleiß nicht zu erwarten ist. In dem Einmischabschnitt mit dem mengenbestimmenden Querschnitt wird das Zerstäubermedium in Form eines Hohlzylinders geführt, der sich umhüllend um den flüssigen Brennstoffstrom legt. Der flüssige Brennstoff wird damit, von einem wesentlich größeren Querschnitt kommend, in den Hochgeschwindigkeitsstrom des Zerstäubermediums eingezogen und eingemischt, wobei die Randzonen des mengenbestimmenden Querschnittes vornehmlich von dem Zerstäubungsmedium beaufschlagt werden. Die Mengenbestimmung des Brennstoffes erfolgt in dem freien Strom des Zerstäubermediums, ohne daß der flüssige Brennstoff mit den in ihm enthaltenen festen Bestandteile mit den metallischen Wänden innerhalb des mengenbestimmenden Querschnittes im nennenswerten Umfang in Kontakt kommt.In the burner according to the invention, the speeds in the channel carrying fuel are so low that significant wear is not expected. In the Einmischabschnitt with the quantity-determining cross section of the atomizing medium is fed in the form of a hollow cylinder, which enveloping uel stream wraps around the liquid B. Coming from a substantially larger cross-section, the liquid fuel is thus drawn into the high-speed stream of the atomizing medium and mixed in, the edge zones of the quantity-determining cross section being acted upon primarily by the atomizing medium. The quantity of the fuel is determined in the free flow of the atomizing medium without the liquid fuel with the solid components contained in it coming into contact with the metallic walls within the quantity-determining cross-section to any appreciable extent.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Die Zeichnung stellt einen Längsschnitt durch den Düsenkopf eines Brenners gemäß der Erfindung dar.An embodiment of the invention is shown in the drawing and is explained in more detail below. The drawing shows a longitudinal section through the nozzle head of a burner according to the invention.

Der dargestellte Brenner enthält ein Lanzenrohr 1, auf dessen vorderem Ende ein Düsenkopf befestigt ist. Innerhalb des Lanzenrohres 1 ist ein Zuführungsrohr 2 angeordnet, das einen Kanal 3 zur Führung des flüssigen Brennstoffes umschließt. Der flüssige Brennstoff kann feste Anteile enthalten und zum Beispiel öl, eine Kohlenstaub- öl- oder eine Kohlenstaub-Wasser-Suspension sein. Zwischen dem Lanzenrohr 1 und dem Zuführungsrohr 2 ist ein Kanal 4 für die Zuführung eines Zerstäubermediums, zum Beispiel Dampf, Druckluft oder Gas, gebildet. Abweichend von der dargestellten koaxialen Anordnung können der Kanal 3 für die Führung des Brennstoffes und der Kanal 4 für die Führung des Zerstäubermediums auch parallel zueinander angeordnet sein. In dem Düsenkopf sind die inneren Düsenteile durch einen an dem Lanzenrohr 1 befestigten Düsenträger 5 und einen Düsenhalter 6 fest eingespannt.The burner shown contains a lance tube 1, on the front end of which a nozzle head is attached. A supply tube 2 is arranged within the lance tube 1 and surrounds a channel 3 for guiding the liquid fuel. The liquid fuel can contain solid fractions and can be, for example, oil, a coal dust oil or a coal dust water suspension. Between the lance tube 1 and the feed tube 2, a channel 4 for the supply of an atomizing medium, for example steam, compressed air or gas, is formed. In a departure from the coaxial arrangement shown, the channel 3 for guiding the fuel and the channel 4 for guiding the atomizing medium can also be arranged parallel to one another. In the nozzle head the inner nozzle parts are firmly clamped by a nozzle holder 5 attached to the lance tube 1 and a nozzle holder 6.

Der stromabwärts liegende Teil des Brennstoff führenden Kanals 3 ist durch einen Brennstoffraum 7 gebildet, dessen Querschnitt gegenüber dem lichten Querschnitt des Zuführungsrohres 2 bei dem dargestellten Brenner aus konstruktiven Gründen verengt ist. In diesem Brennstoffraum wird die Geschwindigkeit des strömenden Brennstoffes dann zwangsweise leicht erhöht, sein Querschnitt ist jedoch nicht mengenbestimmend.The downstream part of the fuel-carrying channel 3 is formed by a fuel chamber 7, the cross section of which is narrowed in the burner shown for constructional reasons compared to the clear cross section of the feed pipe 2. The velocity of the flowing fuel is then necessarily slightly increased in this fuel chamber, but its cross-section does not determine the quantity.

Der Brennstoffraum 7 ist konzentrisch von einem Sammelraum 8 umgeben, der mit dem das Zerstäubermedium führenden Kanal 4 über mehrere radiale Bohrungen 9 verbunden ist. Der Sammelraum 8 geht über einen konischen Ringkanal 10 in eine Vormischkammer 11 über, an den sich stromabwärts ein Einmischabschnitt 12 mit einem engsten Querschnitt anschließt. Dieser Einmischabschnitt 12 liegt in der gleichen Achse wie der Brennstoffraum 7. Er wird sowohl von dem Brennstoff als auch von dem Zerstäubermedium durchströmt und ist damit für beide Medien mengenbestimmend.The fuel chamber 7 is surrounded concentrically by a collecting chamber 8, which is connected to the channel 4 carrying the atomizing medium via a plurality of radial bores 9. The collecting space 8 merges via a conical annular channel 10 into a premixing chamber 11, which is followed downstream by a mixing section 12 with a narrowest cross section. This mixing section 12 lies in the same axis as the fuel chamber 7. It is flowed through by both the fuel and the atomizing medium and is therefore quantity-determining for both media.

Stromabwärts von dem Einmischabschnitt 12 ist ein Nachmischraum 13 angeordnet, in welchem der Brennstoff und das Zerstäubermedium weiter zu einer Emulsion vermischt werden. Das vordere Ende des Düsenkopfes ist geschlossen und nimmt ein Sackloch 14 auf, von dem Austrittsbohrungen 15 ausgehen. Dabei sind diese Austrittsbohrungen 15 so angeordnet, daß ihre Eintrittsquerschnitte in einem Abstand von dem geschlossenen Boden des Düsenkopfes liegen, der mindestens dem halben Durchmesser des Sackloches 13 entspricht, wodurch eine Pufferzone geschaffen wird.A post-mixing chamber 13 is arranged downstream of the mixing section 12, in which the fuel and the atomizing medium are further mixed to form an emulsion. The front end of the nozzle head is closed and receives a blind hole 14 from which exit bores 15 extend. These outlet bores 15 are arranged so that their inlet cross-sections are at a distance from the closed bottom of the nozzle head which corresponds to at least half the diameter of the blind hole 13, thereby creating a buffer zone.

Bei diesem Brenner wird durch die Gestaltung des konischen Ringkanales 10 das Zerstäubermedium hohlzylindrisch durch den Einmischabschnitt 12 geführt. Der Brennstoff wird in den Hochgeschwindigkeitsstrom des Zerstäubermediums eingezogen und dadurch in das Zerstäubermedium eingemischt. Dabei legt sich das Zerstäubermedium unter Umhüllung des Brennstoffes an die Randzone des Einmischabschnittes 12. Auf diese Weise wird ein Verschleiß des Einmischabschnittes 12 durch feste Anteile, die in dem flüssigen Brennstoff enthalten sein können, weitgehend herabgesetzt.In this burner, the design of the conical annular channel 10 leads the atomizing medium through the mixing section 12 in a hollow cylindrical manner. The fuel is drawn into the high speed stream of the atomizing medium and thereby mixed into the atomizing medium. The atomizing medium lies against the edge zone of the mixing section 12 while the fuel is wrapped. In this way, wear of the mixing section 12 due to solid components that may be contained in the liquid fuel is largely reduced.

Durch die Anordnung des Sackloches 14 in dem Düsenkopf wird erreicht, daß in dem den Einmischabschnitt 12 und den Nachmischraum 13 verlassenden Strom der Emulsion aus Brennstoff und Zerstäubungsmedium ein Rückstau entsteht, durch den die Axialströmung gebremst wird. Die Verteilung der Emulsion über den Querschnitt der Austrittsbohrungen 14 ist damit wesentlich gleichmäßiger als bei Düsen ohne Sackloch, wodurch die Lebensdauer des Düsenkopfes verlängert wird.The arrangement of the blind hole 14 in the nozzle head ensures that in the flow of the emulsion of fuel and atomizing medium leaving the mixing section 12 and the post-mixing chamber 13, a back pressure occurs, by means of which the axial flow is braked. The distribution of the emulsion over the cross section of the outlet bores 14 is thus much more uniform than in the case of nozzles without a blind hole, as a result of which the service life of the nozzle head is extended.

Claims (5)

1. Brenner für flüssige, insbesondere feste Anteile enthaltende Brennstoffe mit einem Düsenkopf, der einen Mischraum enthält, in den ein den Brennstoff führender Kanal (3) und ein ein Zerstäubungsmedium führender Kanal (4) münden, wobei jeder Strömungsweg einen engsten, die Durchflußmenge begrenzenden Querschnitt aufweist und wobei stromabwärts des Mischraumes Austrittsbohrungen (15) vorgesehen sind, dadurch gekennzeichnet, daß stromabwärts des als Vormischraum (11) ausgebildeten Mischraumes ein Einmischabschnitt (12) vorgesehen ist, der den engsten Querschnitt aufweist und von dem Brennstoff und dem Zerstäubermedium gemeinsam derart durchströmt ist, daß das Zerstäubermedium an der Wand des Einmischabschnittes (12) entlang geführt ist.1. Burner for liquid fuels, in particular containing solid components, with a nozzle head which contains a mixing chamber into which a channel (3) carrying the fuel and a channel (4) leading an atomizing medium open, each flow path having a narrowest limit on the flow rate Has a cross-section and downstream of the mixing chamber there are outlet bores (15), characterized in that a mixing section (12) is provided downstream of the mixing chamber designed as a premixing chamber (11), which has the narrowest cross-section and flows through the fuel and the atomizing medium together in such a way is that the atomizing medium is guided along the wall of the mixing section (12). 2. Brenner nach Anspruch 1, dadurch gekennzeichnet, daß der das Zerstäubermedium führende Kanal (4) mit einem ringförmigen Sammelraum (8) verbunden ist, der das stromabwärts gelegene Ende des den Brennstoff führenden Kanal (3) konzentrisch umgibt, in der rückwärtigen Verlängerung der Achse des Einmischabschnittes (12) mit dem engsten Querschnitt angeordnet und mit diesem über einen konischen Ringkanal (10) und den Vormischraum (11) verbunden ist.2. Burner according to claim 1, characterized in that the atomizing medium channel (4) is connected to an annular collecting space (8) which concentrically surrounds the downstream end of the fuel channel (3), in the rear extension of The axis of the mixing section (12) with the narrowest cross section is arranged and connected to it via a conical annular channel (10) and the premixing chamber (11). 3. Brenner nach Anspruch 2, dadurch gekennzeichnet , daß dem Einmischabschnitt (12) ein Nachmischraum (13) nachgeschaltet ist.3. Burner according to claim 2, characterized in that the mixing section (12) is followed by a post-mixing space (13). 4. Brenner nach Anspruch 2,dadurch gekennzeichnetQuerschnitt verengt ist. 4th Burner according to claim 2, characterized in that the cross section is narrowed. 5. Brenner nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet , daß der Nachmischraum (13) stromabwärts durch ein Sackloch (14) begrenzt ist und daß der Abstand der Eintrittsquerschnitte der Austrittsbohrungen (15) von dem Boden des Sackloches (14) mindestens dem halben Durchmesser des Sackloches (14) entspricht.5. Burner according to one or more of claims 1 to 4, characterized in that the post-mixing space (13) is bounded downstream by a blind hole (14) and that the distance between the inlet cross sections of the outlet bores (15) from the bottom of the blind hole (14) corresponds to at least half the diameter of the blind hole (14).
EP85101685A 1984-07-18 1985-02-15 Burner for liquid fuels, especially fuels containing solid particles Expired EP0172303B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85101685T ATE34446T1 (en) 1984-07-18 1985-02-15 BURNERS FOR LIQUID FUELS, ESPECIALLY SOLID FUELS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3426488 1984-07-18
DE19843426488 DE3426488A1 (en) 1984-07-18 1984-07-18 BURNER FOR LIQUID, ESPECIALLY SOLID, FUELS CONTAINING

Publications (2)

Publication Number Publication Date
EP0172303A1 true EP0172303A1 (en) 1986-02-26
EP0172303B1 EP0172303B1 (en) 1988-05-18

Family

ID=6240972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101685A Expired EP0172303B1 (en) 1984-07-18 1985-02-15 Burner for liquid fuels, especially fuels containing solid particles

Country Status (3)

Country Link
EP (1) EP0172303B1 (en)
AT (1) ATE34446T1 (en)
DE (2) DE3426488A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299757A2 (en) * 1987-07-14 1989-01-18 The Babcock & Wilcox Company Atomisers
EP0565814A2 (en) * 1992-04-13 1993-10-20 LLB Lurgi Lentjes Babcock Energietechnik GmbH Burner torch for pulverising a coal-water suspension

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0253041B1 (en) * 1986-07-14 1990-05-30 Ente Nazionale Per L'energia Elettrica - (Enel) Improved atomizer for a liquid fuel burner
JP2581626B2 (en) * 1991-10-02 1997-02-12 日本メンテ開発株式会社 Concrete repair agent injection plug
EP0586912A3 (en) * 1992-09-08 1994-11-30 Man Nutzfahrzeuge Ag Spray nozzle.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT38113B (en) * 1908-08-31 1909-07-26 Oesterreichische Maschb Aktien Burners for oil firing.
AT48502B (en) * 1910-03-05 1911-06-10 Martin Domiszewski Jet burners for furnaces operated with liquid fuel.
US1071381A (en) * 1912-07-13 1913-08-26 David V Sutton Liquid-fuel burner.
EP0026509B1 (en) * 1979-10-02 1983-10-12 Shell Internationale Researchmaatschappij B.V. Process for the partial combustion of solid fuel and burner for carrying out the process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT38113B (en) * 1908-08-31 1909-07-26 Oesterreichische Maschb Aktien Burners for oil firing.
AT48502B (en) * 1910-03-05 1911-06-10 Martin Domiszewski Jet burners for furnaces operated with liquid fuel.
US1071381A (en) * 1912-07-13 1913-08-26 David V Sutton Liquid-fuel burner.
EP0026509B1 (en) * 1979-10-02 1983-10-12 Shell Internationale Researchmaatschappij B.V. Process for the partial combustion of solid fuel and burner for carrying out the process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299757A2 (en) * 1987-07-14 1989-01-18 The Babcock & Wilcox Company Atomisers
JPS6434459A (en) * 1987-07-14 1989-02-03 Babcock & Wilcox Co Two fluid atomizer
EP0299757A3 (en) * 1987-07-14 1990-01-17 The Babcock & Wilcox Company Atomisers
EP0565814A2 (en) * 1992-04-13 1993-10-20 LLB Lurgi Lentjes Babcock Energietechnik GmbH Burner torch for pulverising a coal-water suspension
EP0565814A3 (en) * 1992-04-13 1993-11-24 Babcock Energie Umwelt Burner torch for pulverising a coal-water suspension

Also Published As

Publication number Publication date
ATE34446T1 (en) 1988-06-15
DE3562818D1 (en) 1988-06-23
EP0172303B1 (en) 1988-05-18
DE3426488A1 (en) 1986-01-30

Similar Documents

Publication Publication Date Title
DE3029095C2 (en) Double fuel injector for a gas turbine engine
DE2429951C2 (en) Fuel injector for a jet engine
EP0276696B1 (en) Hybrid burner for premix operation with gas and/or oil, particularly for gas turbine plants
DE69519197T2 (en) Atomizer for the combustion of liquid fuel with a small spray angle
DE3432607C2 (en)
EP0902233B1 (en) Combined pressurised atomising nozzle
EP0598189B1 (en) Pulverizer for an oil burner
EP0794383A2 (en) Pressurised atomising nozzle
DE2446398A1 (en) AXIAL SWIRL CARBURETOR WITH CENTRAL INJECTION
EP0849532B1 (en) Method of operating a burner
DE4407780C2 (en) Spray nozzle for creating a double spray cone
EP0201671B1 (en) Nozzle for the pneumatic introduction of solids
EP0718550A1 (en) Injection nozzle
EP0172303B1 (en) Burner for liquid fuels, especially fuels containing solid particles
DE2906364C2 (en)
DE102007003665B4 (en) Nozzle for introducing and metering a treatment medium into the exhaust gas flow in combustion processes
DE1964040A1 (en) Device for mixing at least two fluid media, in particular for producing combustible mixtures of fluid media
CH678100A5 (en)
EP0496016B1 (en) High pressure spray nozzle
DE1551648A1 (en) Atomizing burner
DE3943096A1 (en) Atomiser for liquid fuel - has inner and outer chambers with primary and secondary nozzles
EP0565814B1 (en) Burner torch for pulverising a coal-water suspension
DE1750173A1 (en) Method and device for atomizing liquids, especially for oil burners
DE2226621C3 (en) Atomizing burner
EP1016705B1 (en) Burner for partial oxidation of carbon containing liquid fuel

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE IT LI SE

17P Request for examination filed

Effective date: 19860109

17Q First examination report despatched

Effective date: 19861024

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE IT LI SE

REF Corresponds to:

Ref document number: 34446

Country of ref document: AT

Date of ref document: 19880615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3562818

Country of ref document: DE

Date of ref document: 19880623

ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19901227

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910116

Year of fee payment: 7

Ref country code: AT

Payment date: 19910116

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910130

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19920215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920229

Ref country code: CH

Effective date: 19920229

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19921103

EUG Se: european patent has lapsed

Ref document number: 85101685.7

Effective date: 19920904