EP0314897A1 - Excess-air premix gas burner for gas heating devices - Google Patents

Excess-air premix gas burner for gas heating devices Download PDF

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Publication number
EP0314897A1
EP0314897A1 EP88114596A EP88114596A EP0314897A1 EP 0314897 A1 EP0314897 A1 EP 0314897A1 EP 88114596 A EP88114596 A EP 88114596A EP 88114596 A EP88114596 A EP 88114596A EP 0314897 A1 EP0314897 A1 EP 0314897A1
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EP
European Patent Office
Prior art keywords
burner
plate
housing
gas
burner plate
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Granted
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EP88114596A
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German (de)
French (fr)
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EP0314897B1 (en
Inventor
Theo Dipl.-Phys. Jannemann
Hans Berg
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EON Ruhrgas AG
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Ruhrgas AG
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Priority to AT88114596T priority Critical patent/ATE60420T1/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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • 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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/76—Protecting flame and burner parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2211/00—Thermal dilatation prevention or compensation

Definitions

  • the invention relates to an over-stoichiometric premixing gas burner for gas heaters, in particular with a blower-assisted mixture supply, with a perforated, uncooled burner plate forming the boundary between the mixture chamber of the burner housing and the combustion chamber of the heater.
  • the uncooled burner plate at which the combustion or flame formation of the fuel gas / air mixture passing through the perforation occurs, occurs as a result of the strong alternating temperatures , high mechanical stresses in the burner.
  • water cooling of the burner plate which one would like to avoid if possible because of the manufacturing costs, all flat designs of uncooled metallic burner plates have so far led to stress cracks due to the high mechanical stresses that have occurred. For this reason, the burner design has hitherto been limited to cylindrical embodiments of the uncooled burner plates, with which the problem of high mechanical stresses occurring could be mastered
  • the invention has for its object to provide a burner construction with which the problem of thermal stresses and stress cracks can be mastered even with desirable, non-cylindrical design of uncooled burner plates.
  • a rectangular burner plate is slightly curved like a cylinder shell and is held along all four edges in the burner housing by a frame-like border, in which the burner plate can be extended in all directions and which encloses the edges of the burner plate in a non-kickback manner . Due to the non-fixed, but movable design of the all-round, mixed-density enclosure of the burner plate, the uncooled burner plate can expand unhindered in length and width in the event of strong temperature changes. This avoids stress cracks in the burner even when the burner plate is not cylindrical.
  • a similarly curved perforated flow resistance plate is arranged at a short distance below the burner plate and is also extensively movable in its length in all directions in the burner housing, so that this flow resistance plate, to which the heat radiation of the highly heated, is also exposed Burner plate acts, no thermal stress and no risk of stress cracking.
  • FIG. 1 shows a side view of the gas burner, partly in longitudinal section
  • FIG. 2 shows a cross section along the line II-II in FIG. 1.
  • the gas burner contains a base plate 1 with a mixing channel 2, into which the fuel gas is introduced with a gas nozzle and through which the superstoichiometrically premixed fuel gas / air mixture is fed to the burner with the support of an air blower.
  • a burner frame 4 with two upright housing walls 5 is arranged on the base plate 1 with the interposition of a seal 3.
  • a perforated, uncooled burner plate 6 forms a mixture chamber 7 of the burner above the base plate 1 and between the housing walls 5 and delimits the mixture chamber with respect to the combustion chamber of a gas heater (not shown in more detail).
  • the burner plate 6 which is rectangular in plan, is slightly curved in the manner of a cylindrical shell and is fastened along all four edges in the burner housing with a frame-like border, which keeps the burner plate movable in lengthwise directions in its own right, and thereby the edges of the burner plate to form a non-return-proof seal of the mixture chamber 7 of the burner bordering the combustion chamber of the gas heater.
  • a seal 8 For the movable, non-return sealed enclosure of the fuel plate in the illustrated embodiment on the burner frame 4, with the interposition of a seal 8, holding strips 9 are arranged, which have receiving grooves 10 into which the straight longitudinal sides of the burner plate 6 protrude.
  • the arcuate end faces of the burner plate 6 are held by arcuate groove-like recesses in the burner housing, preferably on the inside thereof by arcuate projections 11 on the housing walls 5 of the burner frame 4 and on the outside by loosely fitting clamps 12.
  • arcuate projections 11 on the housing walls 5 of the burner frame 4 and on the outside by loosely fitting clamps 12.
  • In the receiving grooves 10 or between the projections 11 and the Clamps 12 allow expansion of the burner plate 6 on all sides with changing temperature effects, as a result of which thermal stresses and stress cracks in the burner are avoided.
  • soft fire-resistant seals 18 are furthermore inserted between the clamps 12 and the burner plate 6 or in the arc-shaped groove-like recesses of the burner housing in order to ensure the gas-tight sealing of the burner plate on its arc-shaped end faces with respect to the mixture space 7.
  • a perforated flow resistance plate 13 of the same arch is arranged at a short distance below the burner plate 6.
  • This plate 13 serves, on the one hand, to distribute the mixture flow over the surface of the burner plate 6 and, through the intended generation of a flow resistance, which is overcome with the blower-assisted mixture supply, and through the associated high pressure loss, also performs the task of vibration damping. This prevents vibrations of the flames on the outside of the burner plate 6 through the burner plate from generating feedback in the mixture chamber 7, which cause undesired burner whistling.
  • the flow resistance plate 13, which can heat up due to heat radiation from the highly heated burner plate 6, is held so that it can be extended in all directions.
  • the arcuate end faces of the flow resistance plate 13 are held between the projections 11 supporting the burner plate 6 and additionally arcuate projections 14 arranged on the housing walls 5.
  • the straight long sides of the flow resistance Stand plate 13 engage in grooves 15, which are formed between the holding strips 9 and an upwardly offset section of the burner frame 4.
  • the all-round extensible fastening also of the flow resistance plate 13 supports the avoidance of thermal stresses and stress cracks in the burner.
  • the upwardly displaced section of the burner frame 4 is designed as a distribution plate 16 which extends over the mixture path of the burner housing and which additionally serves to distribute the mixture flow flowing through the mixing channel 2 at one end of the base plate 1 evenly over the entire length of the burner housing.

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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)

Abstract

The burner has as outlet for the fuel/air mixture an uncooled perforated burner plate (6) which, with rectangular shape, is gently curved in the manner of a cylindrical casing and is held along all four edges in the burner housing (1, 4, 5) by a frame-like enclosure (9, 11, 12), in which the burner plate (6) is movable longitudinally expandably in all directions and which encloses the edges of the burner plate (6) so as to seal against blowbacks. <IMAGE>

Description

Die Erfindung bezieht sich auf einen überstöchiometrisch vormischenden Gasbrenner für Gasheizgeräte, insbesondere mit gebläseunterstützter Gemischzuführung, mit einer die Begrenzung zwischen dem Gemischraum des Brennergehäuses und dem Brennraum des Heizgerätes bildenden perforierten, ungekühlten Brennerplatte.The invention relates to an over-stoichiometric premixing gas burner for gas heaters, in particular with a blower-assisted mixture supply, with a perforated, uncooled burner plate forming the boundary between the mixture chamber of the burner housing and the combustion chamber of the heater.

Bei solchen Gasbrennern, die beispielsweise bei Gas-­Spezialheizkesseln für Gebäudeheizungen oder auch bei Gas-­Heißwasserbereitern angewendet werden, treten infolge der starken Temperatur-Wechselbeanspruchung der ungekühlten Brennerplatte, an der die Verbrennung bzw. Flammenbildung des durch die Perforation hindurchtretenden Brenngas-Luft-­Gemisches stattfindet, hohe mechanische Spannungen im Brenner auf. Ohne eine Wasserkühlung der Brennerplatte, die man wegen der Fertigungskosten nach Möglichkeit ver­meiden möchte, haben bisher alle ebenen Ausführungsarten ungekühlter metallischer Brennerplatten aufgrund hoher aufgetretener mechanischer Spannungen zu Spannungsrissen geführt. Daher beschränkte sich bisher die Brennerkon­struktion auf zylindrische Ausführungsformen der ungekühl­ten Brennerplatten, mit der das Problem hoher auftretender mechanischer Spannungen beherrscht werden konnteIn the case of such gas burners, which are used, for example, in gas special heating boilers for building heating systems or also in gas hot water heaters, the uncooled burner plate, at which the combustion or flame formation of the fuel gas / air mixture passing through the perforation occurs, occurs as a result of the strong alternating temperatures , high mechanical stresses in the burner. Without water cooling of the burner plate, which one would like to avoid if possible because of the manufacturing costs, all flat designs of uncooled metallic burner plates have so far led to stress cracks due to the high mechanical stresses that have occurred. For this reason, the burner design has hitherto been limited to cylindrical embodiments of the uncooled burner plates, with which the problem of high mechanical stresses occurring could be mastered

Die Erfindung hat nun zur Aufgabe, eine Brennerkonstruktion zu schaffen, mit der auch bei wünschenswerter, nicht zylindrischer Ausführung ungekühlter Brennerplatten das Problem der Wärmespannungen und Spannungsrisse beherrscht werden kann.The invention has for its object to provide a burner construction with which the problem of thermal stresses and stress cracks can be mastered even with desirable, non-cylindrical design of uncooled burner plates.

Diese Aufgabe wird erfindungsgemäß in erster Linie da­durch gelöst, daß eine rechteckige Brennerplatte zylinder­schalenartig leicht gewölbt und entlang allen vier Rändern im Brennergehäuse von einer rahmenartigen Einfassung ge­halten ist, in der die Brennerplatte nach allen Richtungen längenausdehnbar beweglich ist und die die Ränder der Bren­nerplatte rückschlagsicher abdichtend einfaßt. Durch die nicht feste, sondern bewegliche Ausführung der allseitig erforderlichen gemischdichten Einfassung der Brennerplatte kann sich die ungekühlte Brennerplatte bei vorkommenden starken Temperatur-Wechselbeanspruchungen ungehindert in Länge und Breite ausdehnen. Dadurch werden auch bei nicht zylinderförmiger Ausführung der Brennerplatte Spannungs­risse im Brenner vermieden.This object is achieved primarily in that a rectangular burner plate is slightly curved like a cylinder shell and is held along all four edges in the burner housing by a frame-like border, in which the burner plate can be extended in all directions and which encloses the edges of the burner plate in a non-kickback manner . Due to the non-fixed, but movable design of the all-round, mixed-density enclosure of the burner plate, the uncooled burner plate can expand unhindered in length and width in the event of strong temperature changes. This avoids stress cracks in the burner even when the burner plate is not cylindrical.

Vollständig vormischende Gasbrenner neigen bei größerer Leistung zum Pfeifen infolge einer Rückkopplungsschwingung der Flammen. Diese Geräuschentwicklung läßt sich dadurch unterdrücken, daß in Strömungsrichtung vor der perforierten Brennerplatte ein sehr hoher Widerstand für die Gemisch­strömung aufgebaut wird, der mit einer gebläseunterstützten Zuführung des Gemisches zur Brennerplatte überwunden wird. Gemäß einem vorteilhaften weiteren Ausgestaltungsmerkmal des erfindungsgemäßen Gasbrenners ist in einem geringen Abstand unter der Brennerplatte eine gleichartig gewölbte perforierte Strömungswiderstandsplatte angeordnet und an ihren Rändern nach allen Richtungen ebenfalls längenaus­dehnbar beweglich im Brennergehäuse eingefaßt, so daß auch von dieser Strömungswiderstandsplatte, auf die die Wärme­strahlung der hoch erhitzten Brennerplatte einwirkt, keine Wärmespannungen und keine Spannungsrissgefahr ausgehen können.Fully premixed gas burners tend to whistle at higher power due to a feedback oscillation of the flames. This noise development can be suppressed by building up a very high resistance for the mixture flow in the direction of flow in front of the perforated burner plate, which resistance is overcome with a blower-assisted supply of the mixture to the burner plate. According to an advantageous further design feature of the gas burner according to the invention, a similarly curved perforated flow resistance plate is arranged at a short distance below the burner plate and is also extensively movable in its length in all directions in the burner housing, so that this flow resistance plate, to which the heat radiation of the highly heated, is also exposed Burner plate acts, no thermal stress and no risk of stress cracking.

In der Zeichnung ist ein Ausführungsbeispiel des erfin­dungsgemäßen Brenners dargestellt. Es zeigen Figur 1 eine Seitenansicht des Gasbrenners, teilweise im Längsschnitt, Figur 2 einen Querschnitt nach der Linie II-II in Figur 1.In the drawing, an embodiment of the burner according to the invention is shown. FIG. 1 shows a side view of the gas burner, partly in longitudinal section, FIG. 2 shows a cross section along the line II-II in FIG. 1.

Der Gasbrenner enthält eine Grundplatte 1 mit einem Mischkanal 2, in den das Brenngas mit einer Gasdüse ein­geleitet wird und durch den mit Unterstützung durch ein Luftgebläse das überstöchiometrisch vorgemischte Brenngas-­Luft-Gemisch dem Brenner zugeführt wird. Auf der Grund­platte 1 ist unter Zwischenschaltung einer Dichtung 3 ein Brennerrahmen 4 mit zwei aufrechten Gehäusewänden 5 an­geordnet. Eine perforierte, ungekühlte Brennerplatte 6 bildet über der Grundplatte 1 und zwischen den Gehäuse­wänden 5 einen Gemischraum 7 des Brenners und begrenzt den Gemischraum gegenüber dem Brennraum eines nicht näher dar­gestellten Gasheizgerätes. Die in der Grundrißform recht­eckige Brennerplatte 6 ist zylinderschalenartig leicht ge­wölbt und ist entlang allen vier Rändern im Brennergehäuse mit einer rahmenartigen Einfassung befestigt, die die Bren­nerplatte nach allein Richtungen längenausdehnbar beweglich hält und hierbei die Ränder der Brennerplatte unter Bil­dung einer rückschlagsicheren Abdichtung des Gemischraumes 7 des Brenners gegenüber dem Brennraum des Gasheizgerätes einfaßt. Für die bewegliche, rückschlagsicher abgedichtete Einfassung der Brennplatte sind bei dem dargestellten Aus­führungsbeispiel auf dem Brennerrahmen 4, unter Zwischen­schaltung einer Dichtung 8, Halteleisten 9 angeordnet, die Aufnahmenuten 10 aufweisen, in die die geradlinigen Längsseiten der Brennerplatte 6 hineinragen. Die bogen­förmigen Stirnseiten der Brennerplatte 6 sind von bogen­förmigen nutartigen Ausnehmungen des Brennergehäuses ge­halten, vorzugsweise auf ihrer Innenseite von bogenförmi­gen Vorsprüngen 11 an den Gehäusewänden 5 des Brenner­rahmens 4 und außenseitig von lose anliegenden Schellen 12. In den Aufnahmenuten 10 bzw. zwischen den Vorsprüngen 11 und den Schellen 12 ist allseitig eine Längenausdehnung der Brennerplatte 6 bei wechselnden Temperatureinwirkun­gen möglich, wodurch Wärmespannungen und Spannungsrisse im Brenner vermieden werden.The gas burner contains a base plate 1 with a mixing channel 2, into which the fuel gas is introduced with a gas nozzle and through which the superstoichiometrically premixed fuel gas / air mixture is fed to the burner with the support of an air blower. A burner frame 4 with two upright housing walls 5 is arranged on the base plate 1 with the interposition of a seal 3. A perforated, uncooled burner plate 6 forms a mixture chamber 7 of the burner above the base plate 1 and between the housing walls 5 and delimits the mixture chamber with respect to the combustion chamber of a gas heater (not shown in more detail). The burner plate 6, which is rectangular in plan, is slightly curved in the manner of a cylindrical shell and is fastened along all four edges in the burner housing with a frame-like border, which keeps the burner plate movable in lengthwise directions in its own right, and thereby the edges of the burner plate to form a non-return-proof seal of the mixture chamber 7 of the burner bordering the combustion chamber of the gas heater. For the movable, non-return sealed enclosure of the fuel plate in the illustrated embodiment on the burner frame 4, with the interposition of a seal 8, holding strips 9 are arranged, which have receiving grooves 10 into which the straight longitudinal sides of the burner plate 6 protrude. The arcuate end faces of the burner plate 6 are held by arcuate groove-like recesses in the burner housing, preferably on the inside thereof by arcuate projections 11 on the housing walls 5 of the burner frame 4 and on the outside by loosely fitting clamps 12. In the receiving grooves 10 or between the projections 11 and the Clamps 12 allow expansion of the burner plate 6 on all sides with changing temperature effects, as a result of which thermal stresses and stress cracks in the burner are avoided.

Die überlappende Einfassung der Längsseiten der Brenner­platte 6 in den Aufnahmenuten 10 bzw. der Stirnseiten der Brennerplatte 6 zwischen den Vorsprüngen 11 und den Schel­len 12 bewirkt gleichzeitig die rückschlagsichere Abdich­rung zwischen dem Gemischraum des Brenners und dem Brenn­raum des Gasheizgerätes. Vorteilhafterweise sind bei dem dargestellten Ausführungsbeispiel metallische oder aus einem weichen feuerbeständigen Material bestehende Dicht­leisten 17 vorgesehen, welche in die Aufnahmenuten 10 ein­legbar sind, um eine einwandfrei gasdichte Abdichtung der Längsseiten der Brennerplatte 6 gegenüber dem Gemischraum 7 ohne Behinderung der Längenausdehnbarkeit der Brennerplat­te 6 zu erzielen. Vorteilhafterweise sind bei dem darge­stellten Ausführungsbeispiel weiterhin zwischen den Schel­len 12 und der Brennerplatte 6 bzw. in den bogenförmigen nutartigen Ausnehmungen des Brennergehäuses weiche feuer­beständige Dichtungen 18 eingelegt, um die gasdichte Ab­dichtung der Brennerplatte an ihren bogenförmigen Stirn­seiten gegenüber dem Gemischraum 7 zu gewährleisten.The overlapping border of the longitudinal sides of the burner plate 6 in the receiving grooves 10 and the end faces of the burner plate 6 between the projections 11 and the clamps 12 simultaneously causes the non-return seal between the mixture chamber of the burner and the combustion chamber of the gas heater. Advantageously, in the illustrated embodiment, metallic or made of a soft fire-resistant material sealing strips 17 are provided, which can be inserted into the receiving grooves 10 in order to achieve a perfectly gas-tight seal of the long sides of the burner plate 6 with respect to the mixture chamber 7 without impeding the extensibility of the burner plate 6. Advantageously, soft fire-resistant seals 18 are furthermore inserted between the clamps 12 and the burner plate 6 or in the arc-shaped groove-like recesses of the burner housing in order to ensure the gas-tight sealing of the burner plate on its arc-shaped end faces with respect to the mixture space 7.

In einem geringen Abstand unter der Brennerplatte 6 ist eine gleichartig gewölbte perforierte Strömungswiderstands­platte 13 angeordnet. Diese Platte 13 dient einerseits zur Verteilung der Gemischströmung über die Fläche der Brenner­platte 6 und erfüllt durch beabsichtigte Erzeugung eines Strömungswiderstandes, der mit der gebläseunterstützten Gemischzuführung überwunden wird, und durch einen damit verbundenen hohen Druckverlust auch die Aufgabe der Schwingungsdämpfung. Dadurch wird verhindert, daß Schwin­gungen der Flammen an der Außenseite der Brennerplatte 6 durch die Brennerplatte hindurch Rückkopplungen im Gemisch­raum 7 erzeugen, die ein unerwünschtes Brennerpfeifen ver­ursachen. Auch die Strömungswiderstandsplatte 13, die sich durch Wärmestrahlung der hoch erhitzten Brennerplatte 6 erwärmen kann, ist nach allen Richtungen längenausdehnbar beweglich gehalten. Die bogenförmigen Stirnseiten der Strömungswiderstandsplatte 13 sind zwischen den die Brenner­platte 6 stützenden Vorsprüngen 11 und zusätzlich an den Gehäusewänden 5 angeordneten bogenförmigen Vorsprüngen 14 gehalten. Die geradlinigen Längsseiten der Strömugswider­ standsplatte 13 greifen in Nuten 15 ein, die zwischen den Halteleisten 9 und einem nach oben versetzten Abschnitt des Brennerrahmens 4 gebildet sind. Die allseitig längen­ausdehnbare Befestigung auch der Strömungswiderstands­platte 13 unterstützt die Vermeidung von Wärmespannungen und Spannungsrissen im Brenner. Der nach oben versetzte Abschnitt des Brennerrahmens 4 ist als eine über den Gemischweg des Brennergehäuses sich erstreckende Verteil­platte 16 ausgebildet, die zusätzlich dazu dient, die an einem Ende der Grundplatte 1 durch den Mischkanal 2 ein­strömende Gemischströmung gleichmäßig über die gesamte Länge des Brennergehäuses zu verteilen.A perforated flow resistance plate 13 of the same arch is arranged at a short distance below the burner plate 6. This plate 13 serves, on the one hand, to distribute the mixture flow over the surface of the burner plate 6 and, through the intended generation of a flow resistance, which is overcome with the blower-assisted mixture supply, and through the associated high pressure loss, also performs the task of vibration damping. This prevents vibrations of the flames on the outside of the burner plate 6 through the burner plate from generating feedback in the mixture chamber 7, which cause undesired burner whistling. The flow resistance plate 13, which can heat up due to heat radiation from the highly heated burner plate 6, is held so that it can be extended in all directions. The arcuate end faces of the flow resistance plate 13 are held between the projections 11 supporting the burner plate 6 and additionally arcuate projections 14 arranged on the housing walls 5. The straight long sides of the flow resistance Stand plate 13 engage in grooves 15, which are formed between the holding strips 9 and an upwardly offset section of the burner frame 4. The all-round extensible fastening also of the flow resistance plate 13 supports the avoidance of thermal stresses and stress cracks in the burner. The upwardly displaced section of the burner frame 4 is designed as a distribution plate 16 which extends over the mixture path of the burner housing and which additionally serves to distribute the mixture flow flowing through the mixing channel 2 at one end of the base plate 1 evenly over the entire length of the burner housing.

Claims (5)

1. Überstöchiometrisch vormischender Gasbrenner für Gas­heizgeräte, insbesondere mit gebläseunterstützter Ge­mischzuführung, mit einer die Begrenzung zwischen dem Gemischraum des Brennergehäuses und dem Brennraum des Heizgerätes bildenden perforierten, ungekühlten Brenner­platte, dadurch gekennzeichnet, daß eine rechteckige Brennerplatte (6) zylinderschalenartig leicht gewölbt und entlang allen vier Rändern im Brennergehäuse (1, 4, 5) von einer rahmenartigen Einfassung (9, 11, 12) gehal­ten ist, in der die Brennerplatte nach allen Richtungen längenausdehnbar beweglich ist und die die Ränder der Brennerplatte rückschlagsicher abdichtend einfaßt.1. Superstoichiometric premixing gas burner for gas heaters, in particular with a blower-assisted mixture feed, with a perforated, uncooled burner plate forming the boundary between the mixture chamber of the burner housing and the combustion chamber of the heater, characterized in that a rectangular burner plate (6) is slightly curved like a cylinder shell and along all four Edges in the burner housing (1, 4, 5) are held by a frame-like enclosure (9, 11, 12), in which the burner plate can be extended in all directions and which encloses the edges of the burner plate in a non-return sealing manner. 2. Gasbrenner nach Anspruch 1, dadurch gekennzeichnet, daß die Brennerplatte (6) an ihren bogenförmigen Stirnseiten in bogenförmige nutartige Ausnehmungen des Brennerge­häuses eingreift, vorzugsweise innenseitig auf bogen­förmigen Vorsprüngen (11) des Brennergehäuses aufliegt und außenseitig von lose anliegenden Schellen (12) ge­halten ist, und mit ihren geradlinigen Längsseiten in Aufnahmenuten (10) des Brennergehäuses hineinragt.2. Gas burner according to claim 1, characterized in that the burner plate (6) engages on its arcuate end faces in arcuate groove-like recesses of the burner housing, preferably rests on the inside on arcuate projections (11) of the burner housing and is held on the outside by loosely fitting clamps (12) , and protrudes with their straight longitudinal sides into receiving grooves (10) of the burner housing. 3. Gasbrenner nach Anspruch 1 oder 2, dadurch gekennzeich­net, daß in einem geringen Abstand unter der Brenner­platte (6) eine gleichartig gewölbte perforierte Strö­mungswiderstandplatte (13) angeordnet und an ihren Rändern nach allen Richtungen längenausdehnbar be­weglich im Brennergehäuse eingefaßt ist.3. Gas burner according to claim 1 or 2, characterized in that a similarly curved perforated flow resistance plate (13) is arranged at a short distance below the burner plate (6) and is encased in the burner housing so that it can be extended in all directions in all directions. 4. Gasbrenner nach einem der Ansprüche 1 bis 3, dadurch ge­kennzeichnet, daß im Gemischweg des Brennergehäuses zwischen der Brennerplatte (6) bzw. der Strömungswider­standsplatte (13) und der Einmündungsöffnung des Bren­nervormischkanals (2) in das Gehäuse eine mit Durchlaß­öffnungen für die Gemischverteilung versehene Verteil­platte (16) angeordnet ist.4. Gas burner according to one of claims 1 to 3, characterized in that in the mixture path of the burner housing between the burner plate (6) or the flow resistance plate (13) and the opening of the burner pre-mixing channel (2) in the housing provided with passage openings for the mixture distribution Distribution plate (16) is arranged. 5. Gasbrenner nach Anspruch 2, dadurch gekennzeichnet, daß die bogenförmigen nutartigen Ausnehmungen bzw. die Schel­len (12) über eine feuerbeständige weiche Dichtung (18) an den Stirnseiten der Brennerplatte (6) anliegen und daß die Längsseiten der Brennerplatte in den Aufnahme­nuten (10) mittels in die Aufnahmenuten eingelegter metal­lischer oder weicher feuerbeständiger Dichtleisten (17) abgedichtet sind.5. Gas burner according to claim 2, characterized in that the arcuate groove-like recesses or the clamps (12) abut a fire-resistant soft seal (18) on the end faces of the burner plate (6) and that the longitudinal sides of the burner plate in the receiving grooves (10 ) are sealed by means of metallic or soft fire-resistant sealing strips (17) inserted into the receiving grooves.
EP88114596A 1987-10-31 1988-09-07 Excess-air premix gas burner for gas heating devices Expired - Lifetime EP0314897B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88114596T ATE60420T1 (en) 1987-10-31 1988-09-07 SUPERSTOOCHIOMETRIC PREMIXING GAS BURNER FOR GAS HEATING APPLIANCES.

Applications Claiming Priority (2)

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DE8714532U DE8714532U1 (en) 1987-10-31 1987-10-31
DE8714532U 1987-10-31

Publications (2)

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EP0314897A1 true EP0314897A1 (en) 1989-05-10
EP0314897B1 EP0314897B1 (en) 1991-01-23

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Family Applications (1)

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EP88114596A Expired - Lifetime EP0314897B1 (en) 1987-10-31 1988-09-07 Excess-air premix gas burner for gas heating devices

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EP (1) EP0314897B1 (en)
AT (1) ATE60420T1 (en)
DE (2) DE8714532U1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5375998A (en) * 1991-11-14 1994-12-27 Witteveen; Gustaaf J. Low NOx premix gas burner
EP0774623A1 (en) * 1995-11-17 1997-05-21 Dejatech B.V. Burner with segmented burner deck
NL1003311C2 (en) * 1996-06-10 1997-12-17 Radson Alutherm Nv Flame distribution device intended for a burner of a hot water appliance.
EP0844435A1 (en) * 1996-11-26 1998-05-27 Worgas Bruciatori S.R.L. Gas burner
NL1018054C2 (en) * 2001-05-11 2002-11-12 Dejatech Bv Assembly of a burner and a burner housing.
EP2037175B1 (en) 2007-09-12 2016-11-23 Polidoro S.p.A. Premixed burner
WO2024013046A1 (en) * 2022-07-11 2024-01-18 Bekaert Combustion Technology B.V. Premix gas burner and method for manufacturing a premix gas burner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019526777A (en) * 2016-09-13 2019-09-19 ベーカート・コンバスチョン・テクノロジー・ベスローテン・フェンノートシャップ Premixed gas burner

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US2980104A (en) * 1958-01-22 1961-04-18 Hupp Corp Radiant heaters
AT274298B (en) * 1967-08-17 1969-09-10 Caloric Corp Gas-heated infrared heater
DE1529217A1 (en) * 1965-08-19 1969-12-04 Metaalfab Inalfa Nv Device for burning a gas
DE2408792A1 (en) * 1973-02-26 1974-09-05 Rodiac GAS BURNER
DE2613633A1 (en) 1975-03-27 1976-10-07 Burnham Europa Bv GAS BURNER

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
US2980104A (en) * 1958-01-22 1961-04-18 Hupp Corp Radiant heaters
DE1529217A1 (en) * 1965-08-19 1969-12-04 Metaalfab Inalfa Nv Device for burning a gas
AT274298B (en) * 1967-08-17 1969-09-10 Caloric Corp Gas-heated infrared heater
DE2408792A1 (en) * 1973-02-26 1974-09-05 Rodiac GAS BURNER
DE2613633A1 (en) 1975-03-27 1976-10-07 Burnham Europa Bv GAS BURNER

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5375998A (en) * 1991-11-14 1994-12-27 Witteveen; Gustaaf J. Low NOx premix gas burner
EP0774623A1 (en) * 1995-11-17 1997-05-21 Dejatech B.V. Burner with segmented burner deck
NL1001688C2 (en) * 1995-11-17 1997-05-21 Furigas Assen Bv Burner with segmented burner deck.
NL1003311C2 (en) * 1996-06-10 1997-12-17 Radson Alutherm Nv Flame distribution device intended for a burner of a hot water appliance.
EP0816758A1 (en) * 1996-06-10 1998-01-07 N.V. Radson-Alutherm Flame distributing device intended for a burner of a hot water appliance
EP0844435A1 (en) * 1996-11-26 1998-05-27 Worgas Bruciatori S.R.L. Gas burner
NL1018054C2 (en) * 2001-05-11 2002-11-12 Dejatech Bv Assembly of a burner and a burner housing.
EP1256760A1 (en) * 2001-05-11 2002-11-13 Dejatech B.V. Assembly of a burner and a burner housing
EP2037175B1 (en) 2007-09-12 2016-11-23 Polidoro S.p.A. Premixed burner
WO2024013046A1 (en) * 2022-07-11 2024-01-18 Bekaert Combustion Technology B.V. Premix gas burner and method for manufacturing a premix gas burner
NL2032443B1 (en) * 2022-07-11 2024-01-23 Bekaert Combustion Tech Bv Premix gas burner and method for manufacturing a premix gas burner

Also Published As

Publication number Publication date
ATE60420T1 (en) 1991-02-15
EP0314897B1 (en) 1991-01-23
DE3861659D1 (en) 1991-02-28
DE8714532U1 (en) 1987-12-10

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