EP1201990A1 - Burner plate for a gas burner - Google Patents

Burner plate for a gas burner Download PDF

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Publication number
EP1201990A1
EP1201990A1 EP01125296A EP01125296A EP1201990A1 EP 1201990 A1 EP1201990 A1 EP 1201990A1 EP 01125296 A EP01125296 A EP 01125296A EP 01125296 A EP01125296 A EP 01125296A EP 1201990 A1 EP1201990 A1 EP 1201990A1
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EP
European Patent Office
Prior art keywords
burner
slots
length
gas burner
short
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Withdrawn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
EP01125296A
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German (de)
French (fr)
Inventor
Manfred Schwesing
Ralf Fischer
Volker Porzer
Helmut Lemke
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.)
Robert Bosch GmbH
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Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1201990A1 publication Critical patent/EP1201990A1/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Withdrawn legal-status Critical Current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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
    • 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
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/045—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with a plurality of burner bars assembled together, e.g. in a grid-like arrangement

Definitions

  • the invention relates to a gas burner according to the Preamble of claim 1.
  • EP 769 656 A1 also includes an atmospheric gas burner several arranged in parallel next to each other Burner elements with a mixing body and one Burner plate with mixture outlet openings known.
  • the Burner plate is essentially semi-cylindrical curved and executed as an attachable unit with the Mixing body connected.
  • the mixture outlet openings are executed as slots arranged in two rows are.
  • An atmospheric gas burner with a flat one Burner surface with slots and holes as Mixture passage openings go from DE 297 02 645 U1 out.
  • two adjacent slots are offset arranged to each other.
  • two holes are formed in each column.
  • a particularly even one Burning is achieved when the length of the short Slot at least half the length of the long slot and the slots along a common line aligned with the two opposite wall sections are.
  • Figure 1 shows a view of the broad side of a Burner element
  • Figure 2 is a sectional view through the Burner element in Figure 1 along the line II-II
  • Figure 3 a Side view of a burner plate
  • Figure 4 is a plan view on the burner plate in Figure 3
  • Figure 5 an enlarged Section X in Figure 2
  • Figure 6 is a sectional view through the burner plate in Figure 4 along the line VI-VI
  • Figure 7 is an enlarged plan view of a section of the Burner plate.
  • FIG 1 shows a burner element 10 one not closer shown atmospheric gas burner.
  • the atmospheric gas burner consists of a number of Burner elements 10 arranged in parallel next to one another. About the arrangement of a corresponding number of Burner elements 10 can have any burner output increase.
  • Each burner element 10 has a mixing body 12 with two mixing tubes 13 and a burner plate 15.
  • the mixing tubes 13 each have an air inlet opening 21, each a gas nozzle, not shown assigned.
  • the gas nozzles direct fuel gas into the Mixing tubes 13, which via the air inlet openings 21st Primary air entrains in the mixing tube 13, so that in the Mixing tubes 13 forms a fuel gas-air mixture.
  • a gap Between the burner elements 10 arranged side by side is a gap, not shown, available through the additional Secondary air in a above the burner plate 15th forming combustion zone flows.
  • the mixing tubes 13 are each connected Diffuser sections 24 at a common Distribution chamber 25 open.
  • For even distribution of the Fuel gas-air mixture is the flow channel of the Diffuser section 24 with a delta-shaped constriction 27 educated.
  • In the area of the distribution chamber 25 form the Sheet metal halves 17, 18 a circumferential, housing-side Wall section 29 from ( Figure 5).
  • the burner plate 15 is of a frame-shaped Surround wall portion 37 and has a substantially flat Burner surface 35, into the mixture outlet openings 16 are introduced.
  • the mixture outlet openings 16 exist 7 from a long slot 51 with a length L1 and a short slot 52 with a length L2.
  • the slots 51, 52 are alternately offset in two rows juxtaposed so that in each column each there is a short slot 52 and a long slot 51.
  • the Slits 51, 52 are also elongated with approximately semi-circular end sections. The width both slots 51, 52 are the same.
  • the length L2 of the short Schitzes 52 is approximately equal to half the length L1 to greater than half the length L1 of the long slot 51.
  • Zu the two wall sections 37 are the slots 51 and 52 aligned along a common line. Because of that comes the arrangement of the short, alternating side by side Slots 52 and long slots 51 in two rows, the long slots 51 each over the middle of the Burner area 35 are sufficient. Between two opposite Slits 51, 52 is formed a web, the width of which then results from the difference between L1 and L2. There are however, embodiments of more than two rows of alternately staggered slots possible.
  • the beads 38, 38 ', 39, 39' are coordinated with one another in such a way that they create a defined line pressure in cooperation, each form sealing edges. This will in all Operating conditions the required fuel gas tightness guaranteed. Stiffen the beads 38, 38 ', 39, 39' also both components and thus enable smaller ones Tolerances. However, embodiments are also conceivable that only need one bead or more than two Use overlapping beads.
  • the wall section 37 of the burner plate 15 also points in accordance with Figure 3, for example, at four opposite points each have two locking hooks 40, each as from the Wall section 37 formed formed sheet metal tabs 41 are.
  • the sheet metal tabs 41 have a resilient Preload.
  • the sheet metal tabs 41 are shaped for example, by punching out a sheet metal strip from the Sheet metal of the wall section 37 and bending it inwards Metal strip.
  • the locking hooks 40 are located at locations where the Sheet metal halves 17, 18 of the housing 19 with the constrictions 27 are executed. Through these constrictions 27 form the Sheet metal halves 17, 18 each have recessed housing sections 32 out.
  • the metal tabs 41 are bent so far inwards that that the recessed housing portion 32 in reach behind the assembled state ( Figure 5).
  • the resilient effect of the sheet metal tabs 41 enables a safe Connection between mixing body 12 and burner plate 15. In addition, this type of connection enables one Relative movement between mixing body 12 and burner plate 15, which makes it possible to compensate for thermal stresses is.
  • the wall sections 37 In addition to the longitudinal movement between burner plate 15 and mixing body 12, which due to high Temperature differences arise, are to be improved the wall sections 37, for example, expansion slots 43 introduced (Figure 3).
  • the geometry of the expansion slots 43 is designed so that there is no interruption of the beads 38, 38 ' takes place and thus ensures the tightness requirements are.
  • the wall sections 37 are also on the two Narrow sides each provided with a slot 45 through which the crimping points of the housing 19 can grip (FIG 6).

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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 plate (15) has a burner surface (35) in which are mixture-outlets consisting of long (51) and short (52) slits arranged in at least two rows each staggered in formation . The two rows of slits are aligned along a shared line towards the two wall-sections (37). The slits extend as far as the center of the burner surface and have semicircular shaped end sections.

Description

Die Erfindung betrifft einen Gasbrenner gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a gas burner according to the Preamble of claim 1.

Stand der TechnikState of the art

Aus der EP 769 656 A1 ist ein atmosphärischer Gasbrenner mit mehreren, parallel nebeneinander angeordneten Brennerelementen mit einem Mischkörper und einer Brennerplatte mit Gemischaustrittsöffnungen bekannt. Die Brennerplatte ist im Wesentlichen halbzylinderförmig gewölbte ausgeführt und als aufsteckbare Einheit mit dem Mischkörper verbunden. Die Gemischaustrittsöffnungen sind dabei als Schlitze ausgeführt, die in zwei Reihen angeordnet sind.EP 769 656 A1 also includes an atmospheric gas burner several arranged in parallel next to each other Burner elements with a mixing body and one Burner plate with mixture outlet openings known. The Burner plate is essentially semi-cylindrical curved and executed as an attachable unit with the Mixing body connected. The mixture outlet openings are executed as slots arranged in two rows are.

Ein atmosphärischer Gasbrenner mit einer ebenen Brennerfläche mit Schlitzen und Bohrungen als Gemischdurchtrittsöffnungen geht aus DE 297 02 645 U1 hervor. Hierbei sind zwei benachbarte Schlitze versetzt zueinander angeordnet. Zusätzlich zu dem kurzen Schlitzen sind zwei Bohrungen in jeder Spalte ausgebildet. An atmospheric gas burner with a flat one Burner surface with slots and holes as Mixture passage openings go from DE 297 02 645 U1 out. Here, two adjacent slots are offset arranged to each other. In addition to the short slitting two holes are formed in each column.

Vorteile der ErfindungAdvantages of the invention

Der erfindungsgemäße Gasbrenner mit den kennzeichnenden Merkmalen des Anspruchs 1 hat den Vorteil, dass das Brenngasgemisch mit einer laminaren Strömung austritt und über die gesamte Brennerfläche eine stabile Flammenfront ausbildet. Durch die zueinander versetzt angeordneten Schlitze bildet sich kein durchgehender Mittelsteg aus. Dadurch verringert sich die gesamte Längenausdehnung Δl bedingt durch die unterbrochene thermische Spannung, mit Δl = α · l0 · ΔT, wobei α der Wärmeausdehnungkoeffizient, l0 die Länge der nicht unterbrochenen Stege zwischen den Schlitzen und ΔT die Temperaturdifferenz bedeuten. Daraus folgt, dass bei versetzt zueinander angeordneten Schlitzen die effektiv auftretende Längenausdehnung um vieles geringer ausfällt als bei nicht versetzten Schlitzen mit durchgehenden Stegen. Somit können die thermischen Spannung aufgrund der auftretenden Temperaturdifferenzen besser aufgefangen werden. Daraus folgt weiterhin, dass sich die Zug-/Druckspannungen ebenfalls verringern, was zu geringerer Ausdehnung und somit kleinerem Krafteintrag in vertikaler Richtung des eingespannten System von Brennerplatte und Mischkörper führt.The gas burner according to the invention with the characterizing features of claim 1 has the advantage that the fuel gas mixture emerges with a laminar flow and forms a stable flame front over the entire burner surface. Due to the staggered slots, no continuous central web is formed. This reduces the total linear expansion Δl due to the interrupted thermal stress, with Δl = α · l 0 · ΔT, where α is the coefficient of thermal expansion, l 0 is the length of the uninterrupted webs between the slots and ΔT is the temperature difference. It follows from this that in the case of slots which are arranged offset with respect to one another, the length expansion which effectively occurs is much less than with slots which are not offset with continuous webs. The thermal stress can thus be better absorbed due to the temperature differences that occur. It also follows that the tensile / compressive stresses also decrease, which leads to less expansion and thus less force input in the vertical direction of the clamped system of burner plate and mixing body.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Ausgestaltungen des Gegenstands des Hauptanspruchs möglich. Eine besonders gleichmäßige Verbrennung wird erzielt, wenn die Länge des kurzen Schlitzes mindestens die halbe Länge des langen Schlitzes aufweist und die Schlitze entlang einer gemeinsamen Linie an den beiden gegenüberliegenden Wandabschnitten ausgerichtet sind. By the measures listed in the subclaims advantageous embodiments of the subject of Main claim possible. A particularly even one Burning is achieved when the length of the short Slot at least half the length of the long slot and the slots along a common line aligned with the two opposite wall sections are.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Figur 1 zeigt eine Ansicht der Breitseite eines Brennerelements, Figur 2 eine Schnittdarstellung durch das Brennerelement in Figur 1 nach der Linie II-II, Figur 3 eine Seitenansicht einer Brennerplatte, Figur 4 eine Draufsicht auf die Brennerplatte in Figur 3, Figur 5 einen vergrößerten Ausschnitt X in Figur 2, Figur 6 eine Schnittdarstellung durch die Brennerplatte in Figur 4 nach der Linie VI-VI und Figur 7 eine vergrößerte Draufsicht auf einen Ausschnitt der Brennerplatte.An embodiment of the invention is in the drawing shown and in the following description explained. Figure 1 shows a view of the broad side of a Burner element, Figure 2 is a sectional view through the Burner element in Figure 1 along the line II-II, Figure 3 a Side view of a burner plate, Figure 4 is a plan view on the burner plate in Figure 3, Figure 5 an enlarged Section X in Figure 2, Figure 6 is a sectional view through the burner plate in Figure 4 along the line VI-VI and Figure 7 is an enlarged plan view of a section of the Burner plate.

Ausführungsbeispielembodiment

Figur 1 zeigt ein Brennerelement 10 eines nicht näher dargestellten atmosphärischen Gasbrenners. Der atmosphärische Gasbrenner besteht aus einer Anzahl von parallel nebeneinander angeordneten Brennerelementen 10. Über die Anordnung einer entsprechenden Anzahl von Brennerelementen 10 lässt sich die Brennerleistung beliebig erhöhen. Jedes Brennerelement 10 weist einen Mischkörper 12 mit zwei Mischrohren 13 und einer Brennerplatte 15 auf. Der Mischkörper 12 wird gemäß Figur 2 beispielsweise aus zwei schalenförmigen Blechhälften 17, 18 ausgeführt, die ein Gehäuse 19 bilden.Figure 1 shows a burner element 10 one not closer shown atmospheric gas burner. The atmospheric gas burner consists of a number of Burner elements 10 arranged in parallel next to one another. About the arrangement of a corresponding number of Burner elements 10 can have any burner output increase. Each burner element 10 has a mixing body 12 with two mixing tubes 13 and a burner plate 15. The Mixing body 12 according to Figure 2, for example, from two bowl-shaped sheet metal halves 17, 18 executed a Form housing 19.

Die Mischrohre 13 haben jeweils eine Lufteintrittsöffnung 21, der jeweils eine nicht näher dargestellte Gasdüse zugeordnet ist. Die Gasdüsen leiten Brenngas in die Mischrohre 13 ein, das über die Lufteintrittsöffnungen 21 Primärluft in das Mischrohr 13 mitreißt, so dass sich in den Mischrohren 13 ein Brenngas-Luft-Gemisch bildet. Zwischen den nebeneinander angeordneten Brennerelementen 10 ist ein nicht dargestellter Spalt vorhanden, durch den zusätzlich Sekundärluft in eine sich oberhalb der Brennerplatte 15 ausbildende Brennzone strömt.The mixing tubes 13 each have an air inlet opening 21, each a gas nozzle, not shown assigned. The gas nozzles direct fuel gas into the Mixing tubes 13, which via the air inlet openings 21st Primary air entrains in the mixing tube 13, so that in the Mixing tubes 13 forms a fuel gas-air mixture. Between the burner elements 10 arranged side by side is a gap, not shown, available through the additional Secondary air in a above the burner plate 15th forming combustion zone flows.

An die Mischrohre 13 schließen sich jeweils Diffusorabschnitte 24 an, die in eine gemeinsame Verteilkammer 25 münden. Zur gleichmäßigen Verteilung des Brenngas-Luft-Gemischs ist der Strömungskanal des Diffusorabschnitts 24 mit einer deltaförmigen Verengung 27 ausgebildet. Im Bereich der Verteilkammer 25 bilden die Blechhälften 17, 18 einen umlaufenden, gehäuseseitigen Wandabschnitt 29 aus (Figur 5).The mixing tubes 13 are each connected Diffuser sections 24 at a common Distribution chamber 25 open. For even distribution of the Fuel gas-air mixture is the flow channel of the Diffuser section 24 with a delta-shaped constriction 27 educated. In the area of the distribution chamber 25 form the Sheet metal halves 17, 18 a circumferential, housing-side Wall section 29 from (Figure 5).

Die Brennerplatte 15 ist von einem rahmenförmigen Wandabschnitt 37 umgeben und hat eine im Wesentlichen ebene Brennerfläche 35, in die Gemischaustrittsöffnungen 16 eingebracht sind. Die Gemischaustrittsöffnungen 16 bestehen gemäß Figur 7 aus einem langen Schlitz 51 mit einer Länge L1 und einem kurzen Schlitz 52 mit einer Länge L2. Die Schlitze 51, 52 sind dabei in zwei Reihen abwechselnd versetzt nebeneinander angeordnete, so dass in jeder Spalte jeweils ein kurzer Schlitz 52 und ein langer Schlitz 51 liegen. Die Schlitze 51, 52 sind ferner langlochförmig mit etwa halbkreisförmigen Endabschnitten ausgeführt. Die Breite beider Schlitze 51, 52 ist gleich. Die Länge L2 des kurzen Schitzes 52 ist dabei etwa gleich der halben Länge L1 bis größer als die halbe Länge L1 des langen Schlitzes 51. Zu den beiden Wandabschnitten 37 sind die Schlitze 51 und 52 entlang einer gemeinsamen Linie ausgerichtet. Dadurch kommt die Anordnung der abwechseln nebeneinander liegenden kurzen Schlitze 52 und langen Schlitze 51 in zwei Reihen zustande, wobei die langen Schlitze 51 jeweils bis über die Mitte der Brennerfläche 35 reichen. Zwischen zwei gegenüberliegenden Schlitzen 51, 52 ist ein Steg ausbildetet, dessen Breite sich dann aus der Differenz von L1 und L2 ergibt. Es sind jedoch auch Ausführungsformen von mehr als zwei Reihen von abwechselnd versetzt angeordneten Schlitzen möglich.The burner plate 15 is of a frame-shaped Surround wall portion 37 and has a substantially flat Burner surface 35, into the mixture outlet openings 16 are introduced. The mixture outlet openings 16 exist 7 from a long slot 51 with a length L1 and a short slot 52 with a length L2. The slots 51, 52 are alternately offset in two rows juxtaposed so that in each column each there is a short slot 52 and a long slot 51. The Slits 51, 52 are also elongated with approximately semi-circular end sections. The width both slots 51, 52 are the same. The length L2 of the short Schitzes 52 is approximately equal to half the length L1 to greater than half the length L1 of the long slot 51. Zu the two wall sections 37 are the slots 51 and 52 aligned along a common line. Because of that comes the arrangement of the short, alternating side by side Slots 52 and long slots 51 in two rows, the long slots 51 each over the middle of the Burner area 35 are sufficient. Between two opposite Slits 51, 52 is formed a web, the width of which then results from the difference between L1 and L2. There are however, embodiments of more than two rows of alternately staggered slots possible.

In den Wandabschnitt 37 sind gemäß Figur 5 und 6 beispielsweise zwei übereinanderliegende und nach außen weisende brennerplattenseitige Sicken 38, 38' eingearbeitet. Den Sicken 38, 38' sind gemäß Figur 5 im gehäuseseitigen Wandabschnitt 29 des Mischkörpers 12 zwei ebenfalls nach außen weisende gehäuseseitige Sicken 39, 39' zugeordnet. Die gehäuseseitigen Sicken 39, 39' greifen im montierten Zustand von Mischkörper 12 und Brennerplatte 15 in die brennerplattenseitigen Sicken 38, 38' ein. Die Sicken 38, 38', 39, 39' sind derart aufeinander abgestimmt, dass diese im Zusammenwirken eine definierte Linienpressungen erzeugen, die jeweils Dichtkanten ausbilden. Dadurch wird in allen Betriebszuständen die geforderte Brenngasdichtheit gewährleistet. Die Sicken 38, 38', 39, 39' versteifen außerdem beide Bauteile und ermöglichen somit kleinere Toleranzen. Es sind jedoch auch Ausführungsformen denkbar, die nur mit einer Sicke auskommen oder die mehr als zwei übereinander liegende Sicken benutzen.5 and 6 are in the wall section 37 for example two superimposed and outward facing beads 38, 38 'on the burner plate side. The beads 38, 38 'are according to Figure 5 in the housing Wall section 29 of the mixing body 12 also two externally facing beads 39, 39 'on the housing side. The beads 39, 39 'on the housing grip in the assembled state of mixing body 12 and burner plate 15 in the beads 38, 38 'on the burner plate side. The beads 38, 38 ', 39, 39' are coordinated with one another in such a way that they create a defined line pressure in cooperation, each form sealing edges. This will in all Operating conditions the required fuel gas tightness guaranteed. Stiffen the beads 38, 38 ', 39, 39' also both components and thus enable smaller ones Tolerances. However, embodiments are also conceivable that only need one bead or more than two Use overlapping beads.

Der Wandabschnitt 37 der Brennerplatte 15 weist ferner gemäß Figur 3 beispielsweise an vier gegenüberliegenden Stellen jeweils zwei Rasthaken 40 auf, die jeweils als aus dem Wandabschnitt 37 ausgeformte Blechlaschen 41 ausgebildet sind. Die Blechlaschen 41 besitzen eine federnde Vorspannung. Das Ausformen der Blechlaschen 41 erfolgt beispielsweise durch Ausstanzen eines Blechstreifens aus dem Blech des Wandabschnitts 37 und nach innen Biegen dieses Blechstreifens.The wall section 37 of the burner plate 15 also points in accordance with Figure 3, for example, at four opposite points each have two locking hooks 40, each as from the Wall section 37 formed formed sheet metal tabs 41 are. The sheet metal tabs 41 have a resilient Preload. The sheet metal tabs 41 are shaped for example, by punching out a sheet metal strip from the Sheet metal of the wall section 37 and bending it inwards Metal strip.

Die Rasthaken 40 befinden sich an Stellen, an denen die Blechhälften 17, 18 des Gehäuses 19 mit den Verengungen 27 ausgeführt sind. Durch diese Verengungen 27 bilden die Blechhälften 17, 18 jeweils zurückgesetzte Gehäuseabschnitte 32 aus. Die Blechlaschen 41 sind so weit nach innen gebogen, dass sie den zurückgesetzten Gehäuseabschnitt 32 im montierten Zustand rastend hintergreifen (Figur 5). Die federnde Wirkung der Blechlaschen 41 ermöglicht eine sichere Verbindung zwischen Mischkörper 12 und Brennerplatte 15. Darüber hinaus ermöglicht diese Art der Verbindung eine Relativbewegung zwischen Mischkörper 12 und Brennerplatte 15, wodurch ein Ausgleich bei thermischen Spannungen möglich ist.The locking hooks 40 are located at locations where the Sheet metal halves 17, 18 of the housing 19 with the constrictions 27 are executed. Through these constrictions 27 form the Sheet metal halves 17, 18 each have recessed housing sections 32 out. The metal tabs 41 are bent so far inwards that that the recessed housing portion 32 in reach behind the assembled state (Figure 5). The resilient effect of the sheet metal tabs 41 enables a safe Connection between mixing body 12 and burner plate 15. In addition, this type of connection enables one Relative movement between mixing body 12 and burner plate 15, which makes it possible to compensate for thermal stresses is.

Um zusätzlich die Längsbewegung zwischen Brennerplatte 15 und Mischkörper 12, die auf Grund von hohen Temperaturunterschieden entstehen, zu verbessern, sind in die Wandabschnitte 37 beispielsweise Dehnschlitze 43 eingebracht (Figur 3). Die Geometrie der Dehnschlitze 43 ist so ausgeführt, dass keine Unterbrechung der Sicken 38, 38' erfolgt und somit die Dichtheitsanforderungen gewährleistet sind. Die Wandabschnitte 37 sind ferner an den beiden Schmalseiten mit jeweils einem Schlitz 45 versehen, durch den die Bördelstellen des Gehäuses 19 greifen können (Figur 6).In addition to the longitudinal movement between burner plate 15 and mixing body 12, which due to high Temperature differences arise, are to be improved the wall sections 37, for example, expansion slots 43 introduced (Figure 3). The geometry of the expansion slots 43 is designed so that there is no interruption of the beads 38, 38 ' takes place and thus ensures the tightness requirements are. The wall sections 37 are also on the two Narrow sides each provided with a slot 45 through which the crimping points of the housing 19 can grip (FIG 6).

Claims (6)

Gasbrenner mit mehreren, im Wesentlichen parallel zueinander angeordneten Brennerelementen mit einem Mischkörper und einer dem Mischkörper zur Brennzone hin abschließenden Brennerplatte mit einer Brennerfläche, in der Gemischaustrittsöffnungen angeordnet sind, dadurch gekennzeichnet, dass die Gemischaustrittsöffnungen (16) aus langen Schlitzen (51) und kurzen Schlitzen (52) bestehen und dass die langen Schlitze (51) und die kurzen Schlitze (52) in mindestens zwei Reihen jeweils abwechselnd versetzt nebeneinander angeordnet sind.Gas burner with a plurality of burner elements which are arranged essentially parallel to one another and have a mixing body and a burner plate which closes the mixing body toward the combustion zone and has a burner surface in which mixture outlet openings are arranged, characterized in that the mixture outlet openings (16) consist of long slots (51) and short slots (52) exist and that the long slots (51) and the short slots (52) are alternately staggered in at least two rows. Gasbrenner nach Anspruch 1, dadurch gekennzeichnet, dass die beiden Reihen der Schlitze (51, 52) zu den beiden Wandabschnitten (37) hin entlang einer gemeinsamen Linie ausgerichtet sind.Gas burner according to claim 1, characterized in that the two rows of slots (51, 52) are aligned towards the two wall sections (37) along a common line. Gasbrenner nach Anspruch 1, dadurch gekennzeichnet, dass die langen Schlitze (51) ein Länge (L1) und die kurzen Schlitze (52) eine Länge (L2) aufweisen und dass die Länge (L2) des kurzen Schlitzes (52) etwa gleich der halben Länge (L1) bis größer als die halbe Länge (L1) des langen Schlitzes (51) ist.Gas burner according to claim 1, characterized in that the long slots (51) have a length (L1) and the short slots (52) have a length (L2) and that the length (L2) of the short slot (52) is approximately equal to half Length (L1) to greater than half the length (L1) of the long slot (51). Gasbrenner nach Anspruch 1, dadurch gekennzeichnet, dass die langen Schlitze (51) jeweils bis über die Mitte der Brennerfläche 35 reichen. Gas burner according to claim 1, characterized in that the long slots (51) each extend over the center of the burner surface 35. Gasbrenner nach Anspruch 1, dadurch gekennzeichnet, dass die Schlitze (51, 52) langlochförmig mit etwa halbkreisförmigen Endabschnitten ausgeführt sind.Gas burner according to claim 1, characterized in that the slots (51, 52) are elongated with approximately semicircular end sections. Gasbrenner nach Anspruch 1, dadurch gekennzeichnet, dass die Brennerfläche (35) im Wesentlichen eben ausgebildet ist.Gas burner according to claim 1, characterized in that the burner surface (35) is substantially flat.
EP01125296A 2000-10-31 2001-10-25 Burner plate for a gas burner Withdrawn EP1201990A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000153877 DE10053877B4 (en) 2000-10-31 2000-10-31 Burner plate for a gas burner
DE10053877 2000-10-31

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EP1201990A1 true EP1201990A1 (en) 2002-05-02

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DE (1) DE10053877B4 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10094590B2 (en) 2016-11-21 2018-10-09 Pro-Iroda Industries, Inc. Heat gun having improved flow effects
EP3974718A2 (en) 2020-09-28 2022-03-30 Polidoro S.p.A. Gas burner

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CN108087873B (en) * 2016-11-21 2019-12-31 爱烙达股份有限公司 Hot air gun capable of improving flow guide effect
CN108087878B (en) * 2016-11-21 2019-10-18 爱烙达股份有限公司 Heat gun with self-cooling system

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Publication number Priority date Publication date Assignee Title
US10094590B2 (en) 2016-11-21 2018-10-09 Pro-Iroda Industries, Inc. Heat gun having improved flow effects
EP3974718A2 (en) 2020-09-28 2022-03-30 Polidoro S.p.A. Gas burner
CN114321906A (en) * 2020-09-28 2022-04-12 波利多罗有限公司 Gas burner
EP3974718A3 (en) * 2020-09-28 2022-06-15 Polidoro S.p.A. Gas burner

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