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EP0069245A2 - Nozzle mixing gas-oxygen burner - Google Patents

Nozzle mixing gas-oxygen burner Download PDF

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Publication number
EP0069245A2
EP0069245A2 EP82105155A EP82105155A EP0069245A2 EP 0069245 A2 EP0069245 A2 EP 0069245A2 EP 82105155 A EP82105155 A EP 82105155A EP 82105155 A EP82105155 A EP 82105155A EP 0069245 A2 EP0069245 A2 EP 0069245A2
Authority
EP
European Patent Office
Prior art keywords
tubes
fuel gas
oxygen
small diameter
oxygen 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.)
Withdrawn
Application number
EP82105155A
Other languages
German (de)
French (fr)
Other versions
EP0069245A3 (en
Inventor
Gerhard Dr. Gross
Klaus Leinberger
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.)
Messer Griesheim GmbH
Original Assignee
Messer Griesheim 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 Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Publication of EP0069245A2 publication Critical patent/EP0069245A2/en
Publication of EP0069245A3 publication Critical patent/EP0069245A3/en
Withdrawn legal-status Critical Current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
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • 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
    • F23D2900/00012—Liquid or gas fuel burners with flames spread over a flat surface, either premix or non-premix type, e.g. "Flächenbrenner"

Definitions

  • the invention relates to an externally mixing fuel gas-oxygen burner for generating a short, fully reacted and hot flame.
  • the nozzle In order to produce an ideal mixture, ie a maximum possible burnout, in the case of external-mixing burners, the nozzle must divide the fuel gas and oxygen into an infinite number of individual jets, which are arranged alternately. Such an arrangement increases the mass transfer area between fuel gas and oxygen, which is the prerequisite for creating a short, fully reacted and hot flame. Technically, however, only a finite number of individual gas and oxygen jets can be assigned to each other for manufacturing reasons.
  • the invention has for its object to achieve the greatest possible division of the gas and oxygen individual jets with little design effort.
  • the fuel gas nozzle consists of a multiplicity of tubes of small diameter and the oxygen nozzle is formed by the free space between the tubes of small diameter .
  • the individual tubes are preferably bundled alternately to form a gap.
  • the oxygen nozzle is therefore inevitably formed by the free cross section between the gas nozzles. This eliminates any design effort for the oxygen nozzle.
  • the small diameter tubes do not touch and are arranged in parallel.
  • a perforated plate with bores is arranged in the exit plane of the tubes, into which the tubes protrude to form annular gaps.
  • the oxygen flows out through the many concentric annular gaps and is swirled intensively with the fuel gas flows. This optimally increases the mass transfer area between fuel gas and oxygen.
  • the externally mixing fuel gas-oxygen burner shown in FIGS. 1 and 2 consists of the burner housing 1, in which an intermediate base 2 is attached.
  • the intermediate floor 2 separates the oxygen indicated by an arrow 3 from the fuel gas indicated by an arrow 4.
  • a plurality of tubes 5 of small diameter are arranged in the intermediate floor 2, which run parallel and do not touch.
  • the space 7 remaining between the tubes 5 serves as an oxygen nozzle, which is delimited on the outside by a nozzle ring 6.
  • the externally mixing fuel gas-oxygen burner shown in FIGS. 3 and 4 essentially corresponds to the burner according to FIGS. 1 and 2, which is why the same reference numerals are used.
  • Only the nozzle ring 6 has been replaced by a perforated plate 8.
  • the perforated plate 8 has holes which are arranged so that the tubes 5 of small diameter for the fuel gas protrude into the holes.
  • the bores are larger than the outer diameter of the tubes 5, so that concentric annular gaps 9 are formed.
  • the oxygen flowing out through the annular gaps 9 is mixed intensively with that from the Tubes 5 emerging individual jets of fuel gas. In this way, the goal of making the mass transfer area between fuel gas and oxygen as large as possible is achieved particularly well.
  • the fuel gas-oxygen burner according to the invention can be used in many technical fields, for example as an additional burner to increase the melting capacity of electrical induction crucible furnaces.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)

Abstract

Um bei außenmischenden Brenngas-Sauerstoff-Brennern eine kurze, ausreagierte und heiße Flamme zu erhalten, ist es notwendig, did Stoffaustauschfläche zwischen Brenngas und Sauerstoff möglichst groß zu machen. Um dies zu erreichen, wird die Brenngasdüse aus einer Vielzahl von Rohren (5) kleinen Durchmessers gebildet, während der verbleibende Zwischenraum (7) als Sauerstoffdüse dient. Vorzugsweise sind die Rohre kleinen Durchmessers parallel angeordnet und berühren sich night. In diesem Fall kann in der Austrittsebene der Rohre kleinen Durchmessers eine Lochplatte (8) mit Bohrungen angeordnet werden, so daß die Rohre unter Ausbildung von konzentrischen Ringspalten (9) in die Bohrungen hineinragen. Die Stoffaustauschfläche wird hierdurch nochmals erheblich vergrößert.In order to obtain a short, fully reacted and hot flame with externally mixing fuel gas-oxygen burners, it is necessary to make the mass transfer area between fuel gas and oxygen as large as possible. To achieve this, the fuel gas nozzle is formed from a large number of tubes (5) of small diameter, while the remaining space (7) serves as an oxygen nozzle. The small diameter tubes are preferably arranged in parallel and touch at night. In this case, a perforated plate (8) with bores can be arranged in the exit plane of the small diameter tubes, so that the tubes protrude into the bores with the formation of concentric annular gaps (9). This significantly increases the mass transfer area.

Description

Die Erfindung betrifft einen außenmischenden Brenngas-Sauerstoff-Brenner zur Erzeugung einer kurzen, ausreagierten und heißen Flamme.The invention relates to an externally mixing fuel gas-oxygen burner for generating a short, fully reacted and hot flame.

Um bei außenmischenden Brennern eine ideale Mischung, d.h. einen maximal möglichen Ausbrand zu erzeugen, muß die Düse das Brenngas und den Sauerstoff in unendlich viele Einzelstrahlen aufteilen, die alternierend angeordnet sind. Durch eine solche Anordnung wird die Stoffaustauschfläche zwischen Brenngas und Sauerstoff vergrößert, was die Voraussetzung für die Schaffung einer kurzen, ausreagierten und heißen Flamme ist. Technisch lassen sich jedoch aus Fertigungsgründen nur eine endliche Anzahl von Gas- und Sauerstoffeinzelstrahlen einander zuordnen.In order to produce an ideal mixture, ie a maximum possible burnout, in the case of external-mixing burners, the nozzle must divide the fuel gas and oxygen into an infinite number of individual jets, which are arranged alternately. Such an arrangement increases the mass transfer area between fuel gas and oxygen, which is the prerequisite for creating a short, fully reacted and hot flame. Technically, however, only a finite number of individual gas and oxygen jets can be assigned to each other for manufacturing reasons.

Der Erfindung liegt die Aufgabe zugrunde, mit geringem konstruktiven Aufwand eine möglichst weitgehende Aufteilung der Gas- und Sauerstoffeinzelstrahlen zu erreichen.The invention has for its object to achieve the greatest possible division of the gas and oxygen individual jets with little design effort.

Es wurde nun ein außenmischender Brenngas-Sauerstoff-Brenner zur Erzeugung einer kurzen, ausreagierten und heißen Flamme gefunden, bei dem gemäß der Erfindung die Brenngasdüse aus einer Vielzahl von Rohren kleinen Durchmessers besteht und die Sauerstoffdüse durch den freien Raum zwischen den Rohren kleinen Durchmessers gebildet wird.It has now been found an externally mixing fuel gas-oxygen burner for generating a short, fully reacted and hot flame, in which, according to the invention, the fuel gas nozzle consists of a multiplicity of tubes of small diameter and the oxygen nozzle is formed by the free space between the tubes of small diameter .

Vorzugsweise werden die Einzelrohre alternierend auf Lücke gebündelt. Die Sauerstoffdüse wird daher zwangsweise durch den freien Querschnitt zwischen den Gasdüsen gebildet. Es entfällt somit jeglicher konstruktiver Aufwand für die Sauerstoffdüse.The individual tubes are preferably bundled alternately to form a gap. The oxygen nozzle is therefore inevitably formed by the free cross section between the gas nozzles. This eliminates any design effort for the oxygen nozzle.

Bei einer bevorzugten Ausführungsform berühren sich die Rohre kleinen Durchmessers nicht und sind prarallel angeordnet. In der Austrittsebene der Rohre ist eine Lochplatte mit Bohrungen angeordnet, in welche die Rohre unter Bildung von Ringspalten hineinragen. Durch die vielen konzentrischen Ringspalte strömt der Sauerstoff aus und wird intensiv mit den Brenngaströmen verwirbelt. Hierdurch wird die Stoffaustauschfläche zwischen Brenngas und Sauerstoff in optimaler Weise vergrößert.In a preferred embodiment, the small diameter tubes do not touch and are arranged in parallel. A perforated plate with bores is arranged in the exit plane of the tubes, into which the tubes protrude to form annular gaps. The oxygen flows out through the many concentric annular gaps and is swirled intensively with the fuel gas flows. This optimally increases the mass transfer area between fuel gas and oxygen.

Zwei Ausführungsbeispiele der Erfindung sollen anhand der beigefügten Zeichnungen erläutert werden.Two embodiments of the invention will be explained with reference to the accompanying drawings.

Es zeigen:

  • Fig.1 einen Brenngas-Sauerstoff-Brenner mit parallelen, sich nicht berührenden Einzelrohren für das Brenngas,
  • Fig.2 einen BLick auf die Austrittsebene des Brenners nach Fig.1,
  • Fig.3 einen Brenngas-Sauerstoff-Brenner, bei dem der Sauerstoff durch konzentrische Ringspalte austritt,
  • Fig.4 einen Blick auf die Austrittsfläche des Brenners nach Fig.3.
Show it:
  • Fig.1 a fuel gas-oxygen burner with parallel, not touching single pipes for the fuel gas,
  • 2 shows a view of the exit plane of the burner according to FIG. 1,
  • 3 shows a fuel gas-oxygen burner in which the oxygen exits through concentric annular gaps,
  • 4 shows a view of the outlet surface of the burner according to FIG. 3.

Der in den Fig.1 und 2 dargestellte außenmischende Brenngas-Sauerstoff-Brenner besteht aus dem Brennergehäuse 1, in welchem ein Zwischenboden 2 angebracht ist. Der Zwischenboden 2 trennt den durch einen Pfeil 3 bezeichneten Sauerstoff von dem durch einen Pfeil 4 bezeichneten Brenngas. Erfindungsgemäß ist in dem Zwischenboden 2 eine Vielzahl von Rohren 5 kleinen Durchmessers angeordnet, die parallel verlaufen und sich nicht berühren. Der zwischen den Rohren 5 verbleibende Zwischenraum 7 dient als Sauerstoffdüse, die nach außen durch einen Düsenring 6 begrenzt wird.The externally mixing fuel gas-oxygen burner shown in FIGS. 1 and 2 consists of the burner housing 1, in which an intermediate base 2 is attached. The intermediate floor 2 separates the oxygen indicated by an arrow 3 from the fuel gas indicated by an arrow 4. According to the invention, a plurality of tubes 5 of small diameter are arranged in the intermediate floor 2, which run parallel and do not touch. The space 7 remaining between the tubes 5 serves as an oxygen nozzle, which is delimited on the outside by a nozzle ring 6.

Der in den Fig. 3 und 4 dargestellte außenmischende Brenngas-Sauerstoff-Brenner entspricht im wesentlichen dem Brenner nach den Fig.1 und 2, weshalb auch die gleichen Bezugszeichen verwendet werden. Es ist lediglich der Düsenring 6 durch eine Lochplatte 8 ersetzt worden. Die Lochplatte 8 besitzt Bohrungen, die so angeordnet sind, daß die Rohre 5 kleinen Durchmessers für das Brenngas in die Bohrungen hineinragen. Die Bohrungen sind größer als der Außendurchmesser der Rohre 5, so daß konzentrische Ringspalte 9 gebildet werden. Der durch die Ringspalten 9 ausströmende Sauerstoff wird intensiv vermischt mit den aus den Rohren 5 austretenden Einzelstrahlen des Brenngases. Hierdurch wird das Ziel, die Stoffaustauschfläche zwischen Brenngas und Sauerstoff möglichst groß zu machen, besonders gut erreicht.The externally mixing fuel gas-oxygen burner shown in FIGS. 3 and 4 essentially corresponds to the burner according to FIGS. 1 and 2, which is why the same reference numerals are used. Only the nozzle ring 6 has been replaced by a perforated plate 8. The perforated plate 8 has holes which are arranged so that the tubes 5 of small diameter for the fuel gas protrude into the holes. The bores are larger than the outer diameter of the tubes 5, so that concentric annular gaps 9 are formed. The oxygen flowing out through the annular gaps 9 is mixed intensively with that from the Tubes 5 emerging individual jets of fuel gas. In this way, the goal of making the mass transfer area between fuel gas and oxygen as large as possible is achieved particularly well.

Der erfindungsgemäße Brenngas-Sauerstoff-Brenner kann auf vielen technischen Gebieten eingesetzt werden, beispielsweise als Zusatzbrenner zur Erhöhung der Schmelzleistung von elektrischen Induktionstiegelöfen.The fuel gas-oxygen burner according to the invention can be used in many technical fields, for example as an additional burner to increase the melting capacity of electrical induction crucible furnaces.

Claims (4)

1. Außenmischender Brenngas-Sauerstoff-Brenner zur Erzeugung einer kurzen, ausreagierten und heißen Flamme,
dadurch gekennzeichnet,
daß die Brenngasdüse aus einer Vielzahl von Rohren (5) kleinen Durchmessers besteht und die Sauerstoffdüse durch den freien Zwischenraum (7) zwischen den Rohren kleinen Durchmessers gebildet wird.1. external-mixing fuel gas-oxygen burner to generate a short, fully reacted and hot flame,
characterized,
that the fuel gas nozzle consists of a plurality of tubes (5) of small diameter and the oxygen nozzle is formed by the free space (7) between the tubes of small diameter. 2. Außenmischender Brenngas-Sauerstoff-Brenner nach Anspruch 1,
dadurch gekennzeichnet,
daß die Rohre kleinen Durchmessers parallel angeordnet sind.2. external mixing fuel gas-oxygen burner according to claim 1,
characterized,
that the small diameter tubes are arranged in parallel. 3. Außenmischender Brenngas-Sauerstoff-Brenner nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß sich die Rohre kleinen Durchmessers nicht berühren.3. External mixing fuel gas-oxygen burner according to claim 1 or 2,
characterized,
that the small diameter pipes do not touch. 4. Außenmischender Brenngas-Sauerstoff-Brenner mit parallel angeordneten Rohren kleinen Durchmessers nach Anspruch 3,
dadurch gekennzeichnet,
daß in der Austrittsebene der Rohre kleinen Durchmessers eine Lochplatte (8) mit Bohrungen angeordnet ist, in welche die Rohre (5) unter Bildung von Ringspalten (9) hineinragen.4. external mixing fuel gas-oxygen burner with parallel arranged tubes of small diameter according to claim 3,
characterized,
that a perforated plate (8) with bores is arranged in the exit plane of the small diameter tubes, into which the tubes (5) protrude, forming annular gaps (9).
EP82105155A 1981-07-03 1982-06-12 Nozzle mixing gas-oxygen burner Withdrawn EP0069245A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8119431U 1981-07-03
DE8119431 1981-07-03

Publications (2)

Publication Number Publication Date
EP0069245A2 true EP0069245A2 (en) 1983-01-12
EP0069245A3 EP0069245A3 (en) 1983-11-16

Family

ID=6729024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105155A Withdrawn EP0069245A3 (en) 1981-07-03 1982-06-12 Nozzle mixing gas-oxygen burner

Country Status (3)

Country Link
EP (1) EP0069245A3 (en)
ES (1) ES266197Y (en)
ZA (1) ZA824724B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2628826A1 (en) * 1988-03-21 1989-09-22 Chaffoteaux Et Maury IMPROVEMENTS ON GAS BURNERS
EP0718552A1 (en) * 1994-12-21 1996-06-26 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Externally mixing burner
WO2001042711A1 (en) * 1999-12-07 2001-06-14 Atofina Injector for use in a device for combustion of corrosive products
EP1197705A1 (en) * 2000-10-13 2002-04-17 Krapf, Alfons Non-premix gas burner
DE10052614B4 (en) * 2000-10-13 2006-01-26 Alfons Krapf External gas burner used as a melting burner or a burner for fire-polishing in the glass industry comprises a burner plate and several adjacent first outlet openings for a combustion gas and second outlet openings for oxygen or air
WO2006015676A1 (en) * 2004-08-02 2006-02-16 Behr Gmbh & Co. Kg Duct burner, particularly for a fuel cell system
EP2202460A3 (en) * 2008-12-24 2014-09-03 Messer Austria GmbH Flat flame burner and method for operating same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911035A (en) * 1956-12-05 1959-11-03 Bethlehem Apparatus Company In Polymix gas burner
US3204682A (en) * 1963-08-26 1965-09-07 American Gas Furnace Co Oxy-gas blowpipe
JPS5333903A (en) * 1976-09-10 1978-03-30 Nippon Steel Corp Burner for heat regeneration type hot stove

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2628826A1 (en) * 1988-03-21 1989-09-22 Chaffoteaux Et Maury IMPROVEMENTS ON GAS BURNERS
EP0334736A1 (en) * 1988-03-21 1989-09-27 Chaffoteaux & Maury Gas burners
EP0718552A1 (en) * 1994-12-21 1996-06-26 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Externally mixing burner
FR2728655A1 (en) * 1994-12-21 1996-06-28 Air Liquide EXTERNAL MIXTURE TYPE BURNER
US5615833A (en) * 1994-12-21 1997-04-01 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude External mixing type burner
WO2001042711A1 (en) * 1999-12-07 2001-06-14 Atofina Injector for use in a device for combustion of corrosive products
FR2802615A1 (en) * 1999-12-07 2001-06-22 Atofina INJECTOR FOR USE IN A DEVICE FOR THE COMBUSTION OF CORROSIVE PRODUCTS
US6799964B2 (en) 1999-12-07 2004-10-05 Atofina Injector for use in a device for combustion of corrosive products
EP1197705A1 (en) * 2000-10-13 2002-04-17 Krapf, Alfons Non-premix gas burner
DE10052614B4 (en) * 2000-10-13 2006-01-26 Alfons Krapf External gas burner used as a melting burner or a burner for fire-polishing in the glass industry comprises a burner plate and several adjacent first outlet openings for a combustion gas and second outlet openings for oxygen or air
WO2006015676A1 (en) * 2004-08-02 2006-02-16 Behr Gmbh & Co. Kg Duct burner, particularly for a fuel cell system
EP2202460A3 (en) * 2008-12-24 2014-09-03 Messer Austria GmbH Flat flame burner and method for operating same

Also Published As

Publication number Publication date
ES266197Y (en) 1983-07-16
ES266197U (en) 1983-01-16
ZA824724B (en) 1983-07-27
EP0069245A3 (en) 1983-11-16

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Inventor name: GROSS, GERHARD, DR.

Inventor name: LEINBERGER, KLAUS