EP0092817A1 - Burner for heating the air arranged in a duct through which the air flows - Google Patents

Burner for heating the air arranged in a duct through which the air flows Download PDF

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Publication number
EP0092817A1
EP0092817A1 EP83103956A EP83103956A EP0092817A1 EP 0092817 A1 EP0092817 A1 EP 0092817A1 EP 83103956 A EP83103956 A EP 83103956A EP 83103956 A EP83103956 A EP 83103956A EP 0092817 A1 EP0092817 A1 EP 0092817A1
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EP
European Patent Office
Prior art keywords
air
gas
outlet openings
gas supply
burner
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Granted
Application number
EP83103956A
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German (de)
French (fr)
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EP0092817B1 (en
Inventor
Klaus Reinhold
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Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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Publication of EP0092817A1 publication Critical patent/EP0092817A1/en
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Publication of EP0092817B1 publication Critical patent/EP0092817B1/en
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    • 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
    • F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air

Definitions

  • the invention relates to a burner for heating air according to the preamble of patent claim 1.
  • the tubes provided with gas outlet openings consist of straight tube pieces to which the optionally corrugated, wedge-shaped widening mixing plates are fastened, the end-side, V-shaped gaps being closed by end plates, one of which is provided with the ignition electrode.
  • manually adjustable air baffles are provided in the air duct, with which the amount of fresh air passing through the mixing plates can be controlled.
  • the known burners work well with a sufficiently large parallel air flow at higher output, that is to say at higher temperatures.
  • the gas burns only on the gas supply side of the tube, on which the ignition electrode is also arranged.
  • the one-sided combustion of the gas is even stronger if the pipes provided with the gas outlet openings and the mixing plates are assembled into L, T or H-shaped burners because the flames are difficult to jump over the corners formed by the burner. This results in uneven, torn flame patterns that prevent optimal combustion.
  • the object of the invention is therefore to provide a burner of the type specified at the outset, which ensures even combustion of the gas over its length even when the gas supply is reduced.
  • the burner according to the invention can be arranged in the air-flow channel in such a way that uniform flow profiles result which favor the combustion Taxes.
  • the amount of air flowing through the outer annular mixing plate depends on the size of the annular gap between the edge of this annular mixing plate and the air baffle, which can be changed in the desired manner by moving the air baffle.
  • the tube has at least two concentric channels which are separated by intermediate walls in the region of the gas supply and are provided with a gas overflow line connecting the channels on the side of the first partition opposite the gas supply.
  • This series connection of concentric, circular channels ensures that gas flows through the subsequent channel only when the first channel is completely filled with gas. Since a sufficient amount of gas flows out of the gas outlet openings of the first channel even in the partial power range, a uniform circular flame results, which ensures complete combustion and a uniform temperature profile. At higher power, the gas that has not already escaped through the gas outlet openings of the first ring channel flows into the ring channel or the downstream ring channels, so that higher air temperatures can be achieved without a substantial change in the temperature profile.
  • the gas emerging from the ring channels following the first ring channel increases the total amount of gas coming to the combustion, a complete combustion of the gas being ensured due to the annular flame already generated by the first channel.
  • annular tube which is divided into concentric ring channels by one or more circumferential partition walls, two or more concentric tubes can also be provided.
  • the ring-shaped burner 2 In the tube 1 through which the air to be heated flows, the ring-shaped burner 2, the axis of which coincides with the tube axis, is fastened via holding pieces (not shown).
  • the burner 2 consists of an annular tube which is divided into two bowl-shaped bodies 3, 4 in its central plane.
  • the bowl-shaped bodies 3, 4 lie on one another with their edges and are screwed together via flange-shaped projections 5, 6.
  • the bowl-shaped bodies 3, 4 are provided with ring-shaped, central webs 7, 8 which divide the burner tube into channels 9, 10 which are concentric with one another.
  • the tubular shell 4 On both sides of the web 7, the tubular shell 4 is provided with gas outlet openings 11, 12 which are arranged on circles which are concentric with one another.
  • the nozzle openings formed by the gas outlet openings 11, 12 open on the end face of an annular web connected to the tubular shell 4, on the cylindrical inner and outer sides of which the funnel-shaped mixing plates 13, 14 are fastened.
  • the mixing plates 13, .14 are provided in the manner shown in FIG. 3 with passage openings 15 of different sizes for the air.
  • the channels 9, 10 to the left of the connecting piece 16 for the gas are provided with transverse walls 17, 18.
  • To the left of the transverse walls 17, 18 are the channels 9, 10 through a fine passage opening 19. connected.
  • the gas supplied through the pipe socket 16 thus initially flows in the direction of the arrows through the outer channel 9 and only then enters the inner channel through the passage opening 19 when it does not flow completely through the outer channel 9 with it connected nozzle openings 12 has emerged.
  • a guide plate 20 that narrows conically in the direction of flow is provided, which is displaceably guided in the axial direction on the inner wall of the tube 1.
  • the baffle plate 20 is shown in solid lines in an advanced position in which there is a relatively large annular gap between this and the outer edge of the outer mixing plate 13, so that the majority of the air can flow outside the outer mixing plate 13 without passing through it To go through holes.
  • the guide plate 20 is shown in dashed lines in a retracted position in which there is only a relatively narrow annular gap between this and the outer edge of the mixing plate 13, so that a larger part of the supplied air flows through the mixing plates.
  • the pilot gas tube 22 is arranged in the outer mixing plate 13.
  • the sensor 23 is provided in the inner mixing plate 14 for ionization monitoring.
  • the burner tube consists of two shell-shaped halves which only delimit an annular channel into which the pipe socket 16 'opens.
  • the gas outlet openings are on the other, shell-shaped half, not shown.

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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)
  • Regulation And Control Of Combustion (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Air Supply (AREA)

Abstract

Ein Brenner zur Erwärmung von Luft ist in einem von der Luft durchströmten Kanal angeordnet und weist ein an die Gaszuführung angeschlossenes Rohr auf, an das in Strömungsrichtung der Luft sich keilförmig voneinander entfernende Mischplatten mit Durchtrittsöffnungen für die Luft befestigt sind. Das Rohr ist zwischen den Mischplatten mit Gasauslaßöffnungen versehen. Um auch bei verminderter Leistung, also verminderter Gaszuführung, eine gleichmäßige Verbrennung des Gases über die Länge des Brenners zu gewährleisten, ist das an die Gaszuführung angeschlossene Rohr kreisringförmig ausgebildet und weist in Umfangsrichtung Gasaustrittsöffnungen auf. Die Mischplatten bestehen aus einem äußeren, sich konisch erweiternden und einem inneren, sich konisch verengenden ringförmigen Blech (13, 14), die zumindest teilweise über ihre axiale Länge von einem sich in Strömungsrichtung der Luft konusförmig verengenden Luftleitblech (20) eingefaßt sind, das an der Wandung des Luftkanals (1) in axialer Richtung verschiebbar befestigt ist. Vor den auf einem Kreis oder mehreren konzentrischen Kreisen angeordneten Gasauslaßöffnungen ist eine Zündeinrichtung (22) angeordnet.A burner for heating air is arranged in a channel through which the air flows and has a tube connected to the gas supply, to which mixing plates with through-openings for the air which are wedge-shaped in the flow direction of the air are fastened. The tube is provided with gas outlet openings between the mixing plates. In order to ensure a uniform combustion of the gas over the length of the burner even with reduced output, that is to say reduced gas supply, the pipe connected to the gas supply is circular and has gas outlet openings in the circumferential direction. The mixing plates consist of an outer, conically widening and an inner, conically narrowing annular sheet (13, 14), which are at least partially bordered over their axial length by an air baffle (20) conically narrowing in the direction of flow of the air the wall of the air duct (1) is slidably mounted in the axial direction. An ignition device (22) is arranged in front of the gas outlet openings arranged on a circle or several concentric circles.

Description

Die Erfindung betrifft einen Brenner zur Erwärmung von Luft nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a burner for heating air according to the preamble of patent claim 1.

Bei bekannten Brennern dieser Art bestehen die mit Gasauslaßöffnungen versehenen Rohre aus geraden Rohrstücken, an die die gegebenenfalls gewellten, sich keilförmig erweiternden Mischplatten befestigt sind, wobei die endseitigen, V-förmigen Spalte durch Endplatten verschlossen sind, von denen eine mit der Zündelektrode versehen ist. Außerhalb der Mischplatten sind in dem Luftkanal von Hand einstellbare Luftleitbleche vorgesehen, mit denen sich die Menge der durch die Mischplatten hindurchtretenden Frischluft steuern läßt.In known burners of this type, the tubes provided with gas outlet openings consist of straight tube pieces to which the optionally corrugated, wedge-shaped widening mixing plates are fastened, the end-side, V-shaped gaps being closed by end plates, one of which is provided with the ignition electrode. Outside of the mixing plates, manually adjustable air baffles are provided in the air duct, with which the amount of fresh air passing through the mixing plates can be controlled.

Die bekannten Brenner arbeiten bei ausreichend großer paralleler Luftströmung bei höherer Leistung, also bei höheren Temperaturen gut. Wird jedoch zur Verringerung der Leistung oder Temperatur weniger Gas eingespeist, verbrennt das Gas nur auf der Gaszuführungsseite des Rohrs, an der auch die Zündelektrode angeordnet ist. Es ergibt sich daher der Nachteil, daß bei unvollständiger Verbrennung des Gases ein ungleichmäßiges Temperaturprofil entsteht. Die einseitige Verbrennung des Gases bildet sich dann noch stärker aus, wenn die mit den Gasauslaßöffnungen und den Mischplatten versehenen Rohre zu L-, T- oder H-förmigen Brennern zusammengesetzt sind, weil die Flammen nur erschwert über die durch den Brenner gebildeten Ecken überspringen. Es ergeben sich also ungleichmäßige, zerrissene Flammenbilder, die eine optimale Verbrennung verhindern.The known burners work well with a sufficiently large parallel air flow at higher output, that is to say at higher temperatures. However, if less gas is fed in to reduce the power or temperature, the gas burns only on the gas supply side of the tube, on which the ignition electrode is also arranged. There is therefore the disadvantage that an incomplete combustion of the gas results in an uneven temperature profile. The one-sided combustion of the gas is even stronger if the pipes provided with the gas outlet openings and the mixing plates are assembled into L, T or H-shaped burners because the flames are difficult to jump over the corners formed by the burner. This results in uneven, torn flame patterns that prevent optimal combustion.

Aufgabe der Erfindung ist es daher, einen Brenner der eingangs angegebenen Art zu schaffen, der auch bei verminderter Gaszuführung eine gleichmäßige Verbrennung des Gases über seine Länge gewährleistet.The object of the invention is therefore to provide a burner of the type specified at the outset, which ensures even combustion of the gas over its length even when the gas supply is reduced.

Erfindungsgemäß wird diese Aufgabe durch die in dem kennzeichnenden Teil des Patentanspruchs 1 angegebenen Merkmale gelöst. Aufgrund seines ringförmigen Aufbaus läßt sich der erfindungsgemäße Brenner derart in dem von der Luft durchströmten Kanal anordnen, daß sich gleichmäßige Strömungsprofile ergeben, die die Verbrennung begünstigen..Durch das in axialer Richtung verschiebliche konusförmige Luftleitblech läßt sich in einfacher Weise die durch die Mischplatten hindurchströmende Luftmenge steuern. Die Menge der durch die äußere ringförmige Mischplatte strömendmLuft hängt von der Größe des ringförmigen Spalts zwischen dem Rand dieser ringförmigen Mischplatte und dem Luftleitblech ab, die sich durch Verschiebung des Luftleitbleches in der gewünschten Weise verändern läßt.According to the invention, this object is achieved by the features specified in the characterizing part of patent claim 1. Due to its ring-shaped structure, the burner according to the invention can be arranged in the air-flow channel in such a way that uniform flow profiles result which favor the combustion Taxes. The amount of air flowing through the outer annular mixing plate depends on the size of the annular gap between the edge of this annular mixing plate and the air baffle, which can be changed in the desired manner by moving the air baffle.

Nach einer besonders vorteilhaften Ausführungsform ist vorgesehen, daß das Rohr mindestens zwei konzentrische Kanäle aufweist, die im Bereich der Gaszuführung durch Zwischenwände getrennt und auf der der Gaszuführung gegenüberliegenden Seite der ersten Trennwand mit einer die Kanäle verbindenden Gasüberströmleitung versehen sind. Durch diese Hintereinanderschaltung von konzentrischen, kreisringförmigen Kanälen wird erreicht, daß der nachfolgende Kanal erst dann von Gas durchströmt wird, wenn der erste Kanal voll mit Gas gefüllt ist. Da aus den Gasauslaßöffnungen des ersten Kanals auch im Teilleistungsbereich eine ausreichende Menge von Gas ausströmt, ergibt sich eine gleichmäßige kreisringförmige Flamme, die eine vollständige Verbrennung und ein gleichmäßiges Temperaturprofil sicherstellt. Bei höherer Leistung strömt das nicht bereits durch die Gasauslaßöffnungen des ersten Ringkanals ausgetretene Gas in den oder die nachgeschalteten Ringkanäle, 'so daß sich ohne wesentliche Änderung des Temperaturprofils höhere Lufttemperaturen erreichen lassen. Das aus den dem ersten Ringkanal folgenden Ringkanälen austretende Gas vergrößert die gesamte, zur Verbrennung kommende Gasmenge, wobei aufgrund der bereits durch den ersten Kanal erzeugten ringförmigen Flamme eine vollständige Verbrennung des Gases sichergestellt ist. Statt eines kreisringförmigen Rohres, das durch eine oder mehrere umlaufende Trennwände in konzentrische Ringkanäle unterteilt ist, können auch zwei oder mehrere konzentrische Rohre vorgesehen werden.According to a particularly advantageous embodiment, it is provided that the tube has at least two concentric channels which are separated by intermediate walls in the region of the gas supply and are provided with a gas overflow line connecting the channels on the side of the first partition opposite the gas supply. This series connection of concentric, circular channels ensures that gas flows through the subsequent channel only when the first channel is completely filled with gas. Since a sufficient amount of gas flows out of the gas outlet openings of the first channel even in the partial power range, a uniform circular flame results, which ensures complete combustion and a uniform temperature profile. At higher power, the gas that has not already escaped through the gas outlet openings of the first ring channel flows into the ring channel or the downstream ring channels, so that higher air temperatures can be achieved without a substantial change in the temperature profile. The gas emerging from the ring channels following the first ring channel increases the total amount of gas coming to the combustion, a complete combustion of the gas being ensured due to the annular flame already generated by the first channel. Instead of an annular tube which is divided into concentric ring channels by one or more circumferential partition walls, two or more concentric tubes can also be provided.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen beschrieben worden.Further advantageous embodiments of the invention have been described in the subclaims.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

  • Fig. 1 einen Axialschnitt durch das einen Luftkanal begrenzende Rohr im Bereich des ringförmigen Brenners,
  • Fig. 2 eine Draufsicht auf eine Hälfte des ringförmigen Brennerrohres und
  • Fig. 3 eine Draufsicht auf einen Ausschnitt der Mischplatten
    und
  • Fig. 4 eine Draufsicht auf eine Hälfte eines nur mit einem Ringkanal versehenen Brennerrohres.
An embodiment of the invention is explained below with reference to the drawing. In this shows
  • 1 shows an axial section through the tube delimiting an air duct in the region of the annular burner,
  • Fig. 2 is a plan view of one half of the annular burner tube and
  • Fig. 3 is a plan view of a section of the mixing plates
    and
  • Fig. 4 is a plan view of one half of a burner tube provided only with an annular channel.

In dem von der zu erwärmenden Luft durchströmten Rohr 1 ist über nicht dargestellte Haltestücke der ringförmige Brenner 2 befestigt, dessen Achse mit der Rohrachse übereinstimmt. Der Brenner 2 besteht aus einem ringförmigen Rohr, das in seiner Mittelebene in zwei schalenförmige Körper 3, 4 unterteilt ist. Die schalenförmigen Körper 3, 4 liegen mit ihren Rändern aufeinander und sind über flanschförmige Ansätze 5, 6 miteinander verschraubt. Die schalenförmigen Körper 3, 4 sind mit ringförmig umlaufenden mittleren Stegen 7, 8 versehen, die das Brennerrohr in zueinander konzentrische Kanäle 9, 10 unterteilen. Beidseits des Steges 7 ist die Rohrschale 4 mit Gasauslaßöffnungen 11, 12 versehen, die auf zueinander konzentrischen Kreisen angeordnet sind. Die durch die Gasauslaßöffnungen 11, 12 gebildeten Düsenöffnungen münden auf der Stirnseite eines mit der Rohrschale 4 verbundenen ringförmigen Steges, an dessen zylindrischen Innen- und Außenseiten die trichterförmigen Mischplatten 13, 14 befestigt sind. Die Mischplatten 13, .14 sind in der aus Fig. 3 ersichtlichen Weise mit Durchtrittsöffnungen 15 unterschiedlicher Größe für die.Luft versehen.In the tube 1 through which the air to be heated flows, the ring-shaped burner 2, the axis of which coincides with the tube axis, is fastened via holding pieces (not shown). The burner 2 consists of an annular tube which is divided into two bowl-shaped bodies 3, 4 in its central plane. The bowl-shaped bodies 3, 4 lie on one another with their edges and are screwed together via flange-shaped projections 5, 6. The bowl-shaped bodies 3, 4 are provided with ring-shaped, central webs 7, 8 which divide the burner tube into channels 9, 10 which are concentric with one another. On both sides of the web 7, the tubular shell 4 is provided with gas outlet openings 11, 12 which are arranged on circles which are concentric with one another. The nozzle openings formed by the gas outlet openings 11, 12 open on the end face of an annular web connected to the tubular shell 4, on the cylindrical inner and outer sides of which the funnel-shaped mixing plates 13, 14 are fastened. The mixing plates 13, .14 are provided in the manner shown in FIG. 3 with passage openings 15 of different sizes for the air.

Wie aus Fig. 2 ersichtlich ist, sind die Kanäle 9, 10 links neben dem Anschlußstutzen 16 für das Gas mit Querwänden 17, 18 versehen. Links neben den Querwänden 17, 18 sind die Kanäle 9, 10 durchfeine Durchtrittsöffnung 19 miteinander. verbunden. Das durch den Rohrstutzen 16 zugeführte Gas strömt also zunächst in Richtung der eingezeichneten Pfeile durch den äußeren Kanal 9 und tritt erst dann durch die Durchtrittsöffnung 19 in den inneren Kanal ein, wenn es nicht bei seiner Strömung durch den äußeren Kanal 9 vollständig durch die mit diesem verbundenen Düsenöffnungen 12 ausgetreten ist.As can be seen from Fig. 2, the channels 9, 10 to the left of the connecting piece 16 for the gas are provided with transverse walls 17, 18. To the left of the transverse walls 17, 18 are the channels 9, 10 through a fine passage opening 19. connected. The gas supplied through the pipe socket 16 thus initially flows in the direction of the arrows through the outer channel 9 and only then enters the inner channel through the passage opening 19 when it does not flow completely through the outer channel 9 with it connected nozzle openings 12 has emerged.

Zur Steuerung der durch die äußere Mischplatte 13 strömenden Luft ist eine sich in Strömungsrichtung konusförmig verengende Leitplatte 20 vorgesehen, die auf der Innenwandung des Rohres 1 in axialer Richtung verschieblich geführt ist. Die Leitplatte 20 ist mit ausgezogenen Linien in einer vorgeschobenen Stellung dargestellt, in der zwischen dieser und dem äußeren Rand der äußeren Mischplatte 13 ein relativ großer Ringspalt vorhanden ist, so daß die Hauptmenge der Luft außen an der äußeren Mischplatte 13 vorbeiströmen kann, ohne durch deren Löcher hindurchzutreten. In Fig. 1 ist mit gestrichelten Linien die Leitplatte 20 in einer zurückgeschobenen Stellung dargestellt, in der zwischen dieser und dem äußeren Rand der Mischplatte 13 nur ein relativ schmaler Ringspalt vorhanden ist, so daß ein größerer Teil der zugeführten Luftmenge durch die Mischplatten strömt.In order to control the air flowing through the outer mixing plate 13, a guide plate 20 that narrows conically in the direction of flow is provided, which is displaceably guided in the axial direction on the inner wall of the tube 1. The baffle plate 20 is shown in solid lines in an advanced position in which there is a relatively large annular gap between this and the outer edge of the outer mixing plate 13, so that the majority of the air can flow outside the outer mixing plate 13 without passing through it To go through holes. In Fig. 1, the guide plate 20 is shown in dashed lines in a retracted position in which there is only a relatively narrow annular gap between this and the outer edge of the mixing plate 13, so that a larger part of the supplied air flows through the mixing plates.

Vor den auf konzentrischen Ringen angeordneten Düsenöffnungen 11, 12 ist in der äußeren Mischplatte 13 das Zündgasrohr 22 angeordnet. Zur Ionisationsüberwachung ist in der inneren Mischplatte 14 der Fühler 23 vorgesehen.In front of the nozzle openings 11, 12 arranged on concentric rings, the pilot gas tube 22 is arranged in the outer mixing plate 13. The sensor 23 is provided in the inner mixing plate 14 for ionization monitoring.

In dem Ausführungsbeispiel nach Fig. 4 besteht das Brennerrohr aus zwei schalenförmigen Hälften, die nur einen Ringkanal begrenzen, in den der Rohrstutzen 16' mündet. Die Gasauslaßöffnungen befinden sich auf der anderen, nicht dargestellten schalenförmigen Hälfte.In the exemplary embodiment according to FIG. 4, the burner tube consists of two shell-shaped halves which only delimit an annular channel into which the pipe socket 16 'opens. The gas outlet openings are on the other, shell-shaped half, not shown.

Claims (4)

1. Brenner zur Erwärmung von Luft, der in einem von der Luft durchströmten Kanal angeordnet ist, mit einem an die Gaszuführung angeschlossenen Rohr, an das in Strömungsrichtung der Luft sich keilförmig voneinander entfernende Mischplatten mit Durchtrittsöffnungen für die Luft befestigt sind und das zwischen den Mischplatten mit Gasauslaßöffnungen versehen ist, und mit einer Zündeinrichtung für das Gas, dadurch gekennzeichnet, daß das an die Gaszuführung angeschlossene Rohr kreisringförmig ausgebildet ist und in Umfangsrichtungen Gasaustrittsöffnungen aufweist, daß die Mischplatten aus einem äußeren, sich konisch erweiternden und einen inneren, sich konisch verengenden ringförmigen Blech (13, 14) bestehen, die zumindest teilweise über ihre axiale Länge von einem sich in Strömungsrichtung der Luft konusförmig verengenden Luftleitblech (20) eingefaßt sind, das an der Wandung des Luftkanals (1) in axialer Richtung verschiebbar befestigt ist, und daß die Zündeinrichtung (22) vor den auf einem Kreis oder mehreren konzentrischen Kreisen angeordneten Gasauslaßöffnungen angeordnet ist.1. Burner for heating air, which is arranged in a channel through which the air flows, with a pipe connected to the gas supply, to which mixing plates with passage openings for the air, which are wedge-shaped in the flow direction of the air, are fastened, and that between the mixing plates is provided with gas outlet openings, and with an ignition device for the gas, characterized in that the pipe connected to the gas supply is circular and has gas outlet openings in circumferential directions, that the mixing plates consist of an outer, conically widening and an inner, conically narrowing annular Sheet (13, 14) exist, at least are partially bordered over their axial length by a conically constricting air baffle (20) in the flow direction of the air, which is attached to the wall of the air duct (1) so as to be axially displaceable, and that the ignition device (22) is in front of the on a circle or a plurality of concentric circles arranged gas outlet openings is arranged. 2.. Brenner nach Anspruch 1, dadurch gekennzeichnet, daß das Rohr mindestens zwei konzentrische Kanäle (9, 10) aufweist, die im Bereich der Gaszuführung (16) durch Zwischenwände (17, 18) getrennt und auf der der Gaszuführung gegenüberliegenden Seite der ersten Trennwand (18) mit einer die Kanäle verbindenden Gasüberströmleitung (19) versehen sind.2. Burner according to claim 1, characterized in that the tube has at least two concentric channels (9, 10) which are separated in the region of the gas supply (16) by partitions (17, 18) and on the side of the first one opposite the gas supply Partition (18) are provided with a gas overflow line (19) connecting the channels. 3. Brenner nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die konzentrischen Kanäle (9, 10) durch ein kreisringförmiges Rohr gebildet sind, das durch eine umlaufende Trennwand (7, 8) unterteilt ist, und daß die Gasüberströmleitung aus einer Öffnung (19) in der Trennwand (7, 8) besteht.3. Burner according to claim 1 or 2, characterized in that the concentric channels (9, 10) are formed by an annular tube which is divided by a circumferential partition (7, 8), and in that the gas overflow line from an opening (19th ) in the partition (7, 8). 4. Brenner nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Querschnitte der Austrittsöffnungen in dem unmittelbar an die Gaszuführung (16) angeschlossenen Kanal (9) kleiner sind als die Querschnitte der Austrittsöffnungen in dem zu diesem konzentrischen Kanal (10).4. Burner according to claim 2 or 3, characterized in that the cross sections of the outlet openings in the directly to the gas supply (16) connected channel (9) are smaller than the cross sections of the outlet openings in the concentric to this channel (10).
EP83103956A 1982-04-22 1983-04-22 Burner for heating the air arranged in a duct through which the air flows Expired EP0092817B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3214923A DE3214923C2 (en) 1982-04-22 1982-04-22 Burner for heating air, which is arranged in a duct through which the air flows
DE3214923 1982-04-22

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EP0092817A1 true EP0092817A1 (en) 1983-11-02
EP0092817B1 EP0092817B1 (en) 1985-09-25

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US (1) US4492563A (en)
EP (1) EP0092817B1 (en)
JP (1) JPS58200918A (en)
BR (1) BR8301746A (en)
CA (1) CA1209457A (en)
DE (1) DE3214923C2 (en)

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Also Published As

Publication number Publication date
DE3214923C2 (en) 1986-02-13
BR8301746A (en) 1983-12-13
JPH0236852B2 (en) 1990-08-21
JPS58200918A (en) 1983-11-22
EP0092817B1 (en) 1985-09-25
US4492563A (en) 1985-01-08
DE3214923A1 (en) 1983-11-03
CA1209457A (en) 1986-08-12

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