EP2048440B1 - Burner - Google Patents

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Publication number
EP2048440B1
EP2048440B1 EP20080017776 EP08017776A EP2048440B1 EP 2048440 B1 EP2048440 B1 EP 2048440B1 EP 20080017776 EP20080017776 EP 20080017776 EP 08017776 A EP08017776 A EP 08017776A EP 2048440 B1 EP2048440 B1 EP 2048440B1
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EP
European Patent Office
Prior art keywords
burner
guiding element
flow guiding
burner according
infeed
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.)
Active
Application number
EP20080017776
Other languages
German (de)
French (fr)
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EP2048440A1 (en
Inventor
Konrad Ritter
Gerd Schmalfuß
Thomas Niggemann
Martin Hirsch
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.)
Viessmann Werke GmbH and Co KG
Original Assignee
Viessmann Werke GmbH and Co KG
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Publication of EP2048440A1 publication Critical patent/EP2048440A1/en
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Publication of EP2048440B1 publication Critical patent/EP2048440B1/en
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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
    • F23D14/70—Baffles or like flow-disturbing devices
    • 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
    • F23D14/10—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 elongated tubular burner head
    • F23D14/105—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 elongated tubular burner head with injector axis parallel to the burner head axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/00003—Fuel or fuel-air mixtures flow distribution devices upstream of the outlet

Definitions

  • the invention relates to a burner according to the preamble of patent claim 1.
  • a burner of the type mentioned is according to the DE 31 10 301 A1 known.
  • This gas blower burner consists of a cylindrical burner body (flame body), which at one of its two end faces a supply for a combustible fuel-air mixture (typically ErdgaL - air mixture), which is closed at its other end face and the peripheral surface at least partially is formed as a fuel surface, wherein in the burner body, a sleeve-shaped flow guide element for the fuel-air mixture is arranged, which adjoins the feed, which extends into the region of the closed end side and which defines a sleeve inner and a sleeve outer space which together are pneumatically connected in the region of the closed end face, wherein the Hulsenau wearraum is formed annular gap-like and extends at least between the focal surface and the flow guide element.
  • a combustible fuel-air mixture typically ErdgaL - air mixture
  • the invention has for its object to improve the combustion or the burning behavior of a burner of the type mentioned.
  • the in the FIGS. 1 to 3 shown gas blower burner consists of a cylindrical burner body 1, which has at one of its two end faces 2, a supply 3 for a gas-air mixture to be burned.
  • the burner body 1 is also closed at its other end face 4.
  • Its cylindrical peripheral surface (lateral surface, also called distribution surface) is at least partially formed as a focal surface 5, wherein the lateral surface in the region of the focal surface 5 through holes for the gas-air mixture and of the actual focal surface 5 forming metallic wires (wire mesh or wire mesh) enclosed is.
  • the outer burner body 1 from a first, the supply 3 forming hollow cylindrical pipe section 11, from a second, enclosed by the fuel surface 5, hollow cylindrical pipe section 12 with passage openings for the fuel-air mixture and a lid-like end face. 4 is formed.
  • the closed trained end face 4 of the burner body 1 is provided with a facing in the direction of Strämungs Elilement 6 convex curvature 13, which contributes in cooperation with the yet to be explained flow guide element 6 to a uniform distribution of the fuel-air mixture in the interior of the burner body 1.
  • the flow of the fuel-air mixture advantageously cools the curved front side 4.
  • This adjoins the feed 3 and extends into the region of the closed end face 4.
  • It defines a sleeve inner 7 and a sleeve outer space 8, which spaces with each other in the region of the closed end 4 via corresponding openings or the like (for example to be explained recesses 10) are pneumatically in communication.
  • the sleeve outer space 8 is formed ring-like and extends at least between the focal surface 5 and the flow guide element 6.
  • the sleeve outer space 8 extends in the preferred embodiment, even from one to the other end face 3, 4th
  • annular gap-like sleeve outer space 8 is formed at least in the region of the focal surface 5 with respect to its flow cross-sectional area in the direction of the feed 3 smaller. As explained above, this requirement leads to a very uniform fuel supply to the focal surface 5 and thus to a very uniform combustion because of consideration of the volume compensation.
  • the flow-guiding element 6 is designed to be cone-shaped on the outside of the sleeve and at least in the area of the focal surface 5. Further, if the flow guide element 6 is also cone-shaped on the inside of the sleeve, this can even be formed as a whole of cone-shaped sheet metal material (see in particular FIG. 2 and 3 ). - Of course, however, other embodiments of the flow guide element 6 into consideration, as long as in these the sleeve outer space 8 is formed smaller in the direction of feed 3.
  • the feed side end of the flow guide element 6 has an outer diameter which corresponds to a feed side inner diameter of the burner body 1.
  • Spacers 9 are arranged. This in FIG. 2 Hatched spacers 9 are formed supporting on an inner side of the burner body 1. Furthermore, the spacer elements 9 are arranged as strip-shaped components for flow guidance at least in the region of the focal surface 5.
  • the six little dashes in FIG. 2 indicate the fixation points or lines (for example, by welding) for in this FIG. 2 at this circumferential positions not shown spacers 9 (the upper and lower spacer 9 is in FIG. 2 but shown; FIG. 3 shows four of a total of six spacer elements 9).
  • the spacer element 9 forms an axial support of the flow guide element 6 against the closed end face 4. Between the flow guide element 6 or the spacer elements 9 and the end face 4 there is preferably only a punctiform contact area for minimizing the heat transfer (in each case).
  • FIG. 2 and 3 shows, when using a plurality of spacer elements 9 between these at the supply-remote end of the flow guide element 6 the sleeve interior 7 with the sleeve outer space 8 pneumatically connecting recesses 10 is provided. These serve to convey the gas-air mixture in cooperation with the curvature 13 as evenly as possible to a respective flow gap formed by two spacer elements 9, whereby at the same time the end face 4 is cooled.

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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)

Description

Die Erfindung betrifft einen Brenner gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a burner according to the preamble of patent claim 1.

Ein Brenner der eingangs genannten Art ist nach der DE 31 10 301 A1 bekannt.A burner of the type mentioned is according to the DE 31 10 301 A1 known.

Ein ähnlicher Brenner ist außerdem nach der EP 1 538 395 A1 (siehe dort Figur 1) bekannt. Dieser Gasgebläsebrenner besteht aus einem zylinderförmigen Brennerkörper (Flammkörper), der an einer seiner beiden Stirnseiten eine Zuführung für ein zu verbrennendes Brennstoff-Luft-Gemisch (typischerweise ErdgaL--Luft-Gemisch) aufweist, der an seiner anderen Stirnseite verschlossen und dessen Umfangsoberfläche mindestens teilweise als Brennfläche ausgebildet ist, wobei im Brennerkörper ein hülsenförmiges Strömungsführungselement für das Brennstoff-Luft-Gemisch angeordnet ist, das sich an die Zuführung anschließt, das sich bis in den Bereich der verschlossenen Stirnseite erstreckt und das einen Hülseninnen- und einen Hülsenaußenraum definiert, welche miteinander im Bereich der verschlossenen Stirnseite pneumatisch in Verbindung stehen, wobei der Hulsenaußenraum ringspaltartig ausgebildet ist und sich mindestens zwischen der Brennfläche und dem Strömungsführungselement erstreckt.A similar burner is also after the EP 1 538 395 A1 (look there FIG. 1 ) known. This gas blower burner consists of a cylindrical burner body (flame body), which at one of its two end faces a supply for a combustible fuel-air mixture (typically ErdgaL - air mixture), which is closed at its other end face and the peripheral surface at least partially is formed as a fuel surface, wherein in the burner body, a sleeve-shaped flow guide element for the fuel-air mixture is arranged, which adjoins the feed, which extends into the region of the closed end side and which defines a sleeve inner and a sleeve outer space which together are pneumatically connected in the region of the closed end face, wherein the Hulsenaußenraum is formed annular gap-like and extends at least between the focal surface and the flow guide element.

Der Erfindung liegt die Aufgabe zugrunde, die Verbrennung bzw. das Brennverhalten eines Brenners der eingangs genannten Art zu verbessern.The invention has for its object to improve the combustion or the burning behavior of a burner of the type mentioned.

Diese Aufgabe ist mit einem Brenner der eingangs genannten Art, der auch als Ölbrenner ausgebildet sein könnte, durch die im Kennzeichen des Patentanspruchs 1 aufgeführten Merkmale gelöst.This object is achieved with a burner of the type mentioned, which could also be designed as an oil burner through which dissolved in the characterizing part of claim 1 features.

Mit anderen Worten ausgedrückt, ist dafür gesorgt, dass die Zuführung des Brennstoff-Luft-Gemisches zur Brennfläche gleichmäßiger erfolgt, und zwar dadurch, dass der Raum zwischen dem Strömungsführungselement und der Brennfläche in Richtung Gaszuführung immer kleiner wird, was der Erkenntnis Rechnung trägt, das mit fortschreitender Lauflänge in Richtung Zuführung bereits immer mehr Gemisch durch die Brennfläche hindurchgetreten ist, mithin ein immer kleiner werdender Volumenstrom in Richtung Zuführung strömt.In other words, it is ensured that the supply of the fuel-air mixture to the fuel surface is made uniform, by the fact that the space between the flow guide element and the fuel surface in the direction of gas supply is getting smaller, which takes into account the knowledge As the running length in the direction of the feed progresses, more and more mixture has already passed through the burning surface, and consequently an ever decreasing volume flow flows in the direction of the feed.

Andere vorteilhafte Weiterbildungen des erfindungsgemäßen Brenners ergeben sich aus den abhängigen Patentansprüchen.Other advantageous developments of the burner according to the invention will be apparent from the dependent claims.

Der Vollständigkeit halber wird noch auf die DE 698 12 219 T2 hingewiesen (siehe insbesondere Figur 1), bei der zwar auch ein kegelstumpfförmiges Strömungsführungselement im Brennerkörper angeordnet ist, dieses ist aber genau entgegengesetzt orientiert positioniert. Außerdem weist es Durchströmöffnungen auf, durch die Gemisch aus seinem Innenraum wieder in den Spaltbereich zwischen Brennfläche und Strömungsführungselement strömen kann. Dieses Strömungsführungselement trägt somit nicht wie das erfindungsgemäße zur Vergleichmäßigung der Strömung im Brennerkörper und damit nicht zu angestrebten Verbesserung der Verbrennung bei.The sake of completeness is still on the DE 698 12 219 T2 pointed out (see in particular FIG. 1 ), in which although a frusto-conical flow guide element is arranged in the burner body, but this is positioned exactly opposite orientation. In addition, it has throughflow openings, through which mixture from its interior can again flow into the gap region between the combustion surface and the flow guidance element. This flow guide element thus does not contribute to the equalization of the flow in the burner body and thus not to the desired improvement of the combustion as in the invention.

Verwiesen wird außerdem noch auf die DE 86 05 654 U1 , bei der ebenfalls (wie beim vorgenannten Dokument) das Gemischverteilungsblech mit einer Vielzahl von Löchern versehen ist. Schließlich wird noch auf die EP 0 643 264 A1 hingewiesen, bei der allerdings der ringspaltartige Hülsenaußenraum einen im wesentlichen gleichbleibenden Durchströmquerschnitt aufweist.Is also referred to the DE 86 05 654 U1 in which also (as in the aforementioned document) the mixture distribution plate is provided with a plurality of holes. Finally it will be on the EP 0 643 264 A1 noted, however, in which the annular gap-like sleeve outer space has a substantially constant flow area.

Der erfindungsgemäße Brenner einschließlich seiner vorteilhaften Weiterbildungen gemäß der abhängigen Patentansprüche wird nachfolgend anhand der zeichnerischen Darstellung eines bevorzugten Ausführungsbeispiels näher erläutert.The burner according to the invention including its advantageous developments according to the dependent claims will be explained in more detail with reference to the drawing of a preferred embodiment.

Es zeigt

Figur 1
perspektivisch den erfindungsgemäßen Brenner, hier als Gasgebläsebrenner;
Figur 2
im Schnitt den Brennerkörper mit in Richtung Zuführung kleiner werdendem Hülsenaußenraum (die Strömung ist durch Pfeile dargestellt); und
Figur 3
in Seitenansicht eine bevorzugte Ausführungsform des hülsenförmigen Strömungsführungselements.
It shows
FIG. 1
in perspective, the burner according to the invention, here as Gasgebläsebrenner;
FIG. 2
in the section the burner body with in the direction of supply decreasing sleeve outer space (the flow is represented by arrows); and
FIG. 3
in side view, a preferred embodiment of the sleeve-shaped flow guide element.

Der in den Figuren 1 bis 3 dargestellte Gasgebläsebrenner besteht aus einem zylinderförmigen Brennerkörper 1, der an einer seiner beiden Stirnseiten 2 eine Zuführung 3 für ein zu verbrennendes Gas-Luft-Gemisch aufweist. Der Brennerkörper 1 ist ferner an seiner anderen Stirnseite 4 verschlossen. Seine zylindrische Umfangsoberfläche (Mantelfläche, auch Verteileroberfläche genannt) ist mindestens teilweise als Brennfläche 5 ausgebildet, wobei die Mantelfläche im Bereich der Brennfläche 5 Durchgangsbohrungen für das Gas-Luft-Gemisch aufweist und von die eigentliche Brennfläche 5 bildenden metallischen Drähten (Drahtgewirke oder Drahtgewebe) umschlossen ist.The in the FIGS. 1 to 3 shown gas blower burner consists of a cylindrical burner body 1, which has at one of its two end faces 2, a supply 3 for a gas-air mixture to be burned. The burner body 1 is also closed at its other end face 4. Its cylindrical peripheral surface (lateral surface, also called distribution surface) is at least partially formed as a focal surface 5, wherein the lateral surface in the region of the focal surface 5 through holes for the gas-air mixture and of the actual focal surface 5 forming metallic wires (wire mesh or wire mesh) enclosed is.

Ferner ist vorgesehen, dass der äußere Brennerkörper 1 aus einem ersten, die Zuführung 3 bildenden, hohlzylindrischen Rohrstück 11, aus einem zweiten, von der Brennfläche 5 umschlossenen, hohlzylindrischen Rohrstück 12 mit Durchtrittsöffnungen für das Brennstoff-Luft-Gemisch und einer deckelartig ausgebildeten Stirnseite 4 gebildet ist. Die verschlossen ausgebildete Stirnseite 4 des Brennerkörpers 1 ist dabei mit einer in Richtung Strämungsführungselement 6 weisenden konvexen Wölbung 13 versehen, die im Zusammenwirken mit dem noch zu erläuternden Strömungsführungselement 6 zu einer gleichmäßigen Verteilung des Brennstoff-Luft-Gemisches im Innern des Brennerkörpers 1 beiträgt. Die Strömung des Brennstoff-Luft-Gemisches kühlt darüber hinaus vorteilhafterweise die gewölbte Stirnseite 4.It is further provided that the outer burner body 1 from a first, the supply 3 forming hollow cylindrical pipe section 11, from a second, enclosed by the fuel surface 5, hollow cylindrical pipe section 12 with passage openings for the fuel-air mixture and a lid-like end face. 4 is formed. The closed trained end face 4 of the burner body 1 is provided with a facing in the direction of Strämungsführungselement 6 convex curvature 13, which contributes in cooperation with the yet to be explained flow guide element 6 to a uniform distribution of the fuel-air mixture in the interior of the burner body 1. Moreover, the flow of the fuel-air mixture advantageously cools the curved front side 4.

Ferner ist mit Verweis auf Figur 2 erfindungsgemäß im Brennerkörper 1 ein hülsenförmiges, von der zuführungsseitigen Stirnseite 2 bis zum Bereich der verschlossenen Stirnseite 4 durchströmungsöffnungsfreies Strömungsführungselement 6 für das Gas-Luft-Gemisch angeordnet. Dieses schließt sich an die Zuführung 3 an und erstreckt sich bis in den Bereich der verschlossenen Stirnseite 4. Dabei definiert es einen Hülseninnen- 7 und einen Hülsenaußenraum 8, welche Räume miteinander im Bereich der verschlossenen Stirnseite 4 über entsprechende Öffnungen oder dergleichen (zum Beispiel die noch zu erläuternden Ausnehmungen 10) pneumatisch in Verbindung stehen. Dabei ist der Hülsenaußenraum 8 ringspaltartig ausgebildet und erstreckt sich mindestens zwischen der Brennfläche 5 und dem Strömungsführungselement 6. Wie insbesondere aus Figur 2 ersichtlich, erstreckt sich der Hülsenaussenraum 8 bei der bevorzugten Ausführungsform sogar von der einen bis zur anderen Stirnseite 3, 4.Further, with reference to FIG. 2 According to the invention in the burner body 1 a sleeve-shaped, from the supply-side end face 2 to the region of the closed end face 4 throughflow-free flow guide element 6 arranged for the gas-air mixture. This adjoins the feed 3 and extends into the region of the closed end face 4. It defines a sleeve inner 7 and a sleeve outer space 8, which spaces with each other in the region of the closed end 4 via corresponding openings or the like (for example to be explained recesses 10) are pneumatically in communication. In this case, the sleeve outer space 8 is formed ring-like and extends at least between the focal surface 5 and the flow guide element 6. As in particular from FIG. 2 can be seen, the sleeve outer space 8 extends in the preferred embodiment, even from one to the other end face 3, 4th

Weiterhin typisch für alle Ausführungsformen des erfindungsgemäßen Brenners ist, dass der ringspaltartige Hülsenaußenraum 8 mindestens im Bereich der Brennfläche 5 bezüglich seiner Durchströmquerschnittsfläche in Richtung der Zuführung 3 kleiner werdend ausgebildet ist. Wie eingangs erläutert, führt diese Maßgabe wegen Berücksichtigung des Volumenausgleichs zu einer sehr gleichmäßigen Brennstoffzufuhr zur Brennfläche 5 und damit zu einer sehr gleichmäßigen Verbrennung.Further typical of all embodiments of the burner according to the invention is that the annular gap-like sleeve outer space 8 is formed at least in the region of the focal surface 5 with respect to its flow cross-sectional area in the direction of the feed 3 smaller. As explained above, this requirement leads to a very uniform fuel supply to the focal surface 5 and thus to a very uniform combustion because of consideration of the volume compensation.

Besonders bevorzugt ist in diesem Zusammenhang vorgesehen, dass das Strömungsführungselement 6 hülsenaussenraumseitig und mindestens im Bereich der Brennfläche 5 konusförmig ausgebildet ist. Wenn ferner das Strömungsführungselement 6 auch hülseninnenraumseitig konusförmig ausgebildet ist, kann dieses sogar insgesamt konusförmig aus Blechmaterial gebildet sein (siehe hierzu insbesondere Figur 2 und 3). - Selbstverständlich kommen aber auch andere Ausführungsformen des Strömungsführungselements 6 in Betracht, solange bei diesen der Hülsenaussenraum 8 in Richtung Zuführung 3 kleiner werdend ausgebildet ist.In this context, it is particularly preferably provided that the flow-guiding element 6 is designed to be cone-shaped on the outside of the sleeve and at least in the area of the focal surface 5. Further, if the flow guide element 6 is also cone-shaped on the inside of the sleeve, this can even be formed as a whole of cone-shaped sheet metal material (see in particular FIG. 2 and 3 ). - Of course, however, other embodiments of the flow guide element 6 into consideration, as long as in these the sleeve outer space 8 is formed smaller in the direction of feed 3.

Um das erfindungsgemäße Strömungsführungselement 6 gut und auf möglichst einfache Weise am Brennerkörper 1 fixieren zu können (zum Beispiel einfach durch Einstecken), weist das zufuhrseitige Ende des Strömungsführungselements 6 einen Außendurchmesser auf, der einem zufuhrseitigen Innendurchmesser des Brennerkörpers 1 entspricht.In order to be able to fix the flow guide element 6 according to the invention well and in the simplest possible way on the burner body 1 (for example simply by inserting), the feed side end of the flow guide element 6 has an outer diameter which corresponds to a feed side inner diameter of the burner body 1.

Zur Zentrierung des Strömungsführungselements 6 innerhalb des Brennerkörpers 1 ist vorgesehen, dass an diesem hülsenaussenraumseitig mindestens ein, vorzugsweise drei und mehr (zum Beispiel sechs - siehe Figur 2 und 3) Distanzelemente 9 angeordnet sind. Diese in Figur 2 schraffiert dargestellten Distanzelemente 9 sind dabei sich an einer Innenseite des Brennerkörpers 1 abstützend ausgebildet. Ferner sind die Distanzelemente 9 als streifenförmige Bauteile zur Strömungsführung mindestens im Bereich der Brennfläche 5 angeordnet. Die sechs kleinen Striche in Figur 2 deuten dabei die Fixierungspunkte bzw. -linien (zum Beispiel per Schweißung) für die in dieser Figur 2 an diesen Umfangspositionen nicht dargestellten Distanzelemente 9 an (das obere und untere Distanzelement 9 ist in Figur 2 aber dargestellt; Figur 3 zeigt vier von insgesamt sechs Distanzelementen 9). Zur Axialen Fixierung ist weiterhin vorgesehen, dass das Distanzelement 9 eine axiale Abstützung des Strömungsführungselements 6 gegen die verschlossene Stirnseite 4 bildet. Zwischen dem Strömungsführungselement 6 bzw. den Distanzelementen 9 und der Stirnseite 4 besteht dabei vorzugsweise zur Minimierung der Wärmeübertragung (jeweils) nur ein punktförmiger Kontaktbereich.For centering the flow guide element 6 within the burner body 1, it is provided that at least one, preferably three or more (for Example six - see FIG. 2 and 3 ) Spacers 9 are arranged. This in FIG. 2 Hatched spacers 9 are formed supporting on an inner side of the burner body 1. Furthermore, the spacer elements 9 are arranged as strip-shaped components for flow guidance at least in the region of the focal surface 5. The six little dashes in FIG. 2 indicate the fixation points or lines (for example, by welding) for in this FIG. 2 at this circumferential positions not shown spacers 9 (the upper and lower spacer 9 is in FIG. 2 but shown; FIG. 3 shows four of a total of six spacer elements 9). For Axial fixation is further provided that the spacer element 9 forms an axial support of the flow guide element 6 against the closed end face 4. Between the flow guide element 6 or the spacer elements 9 and the end face 4 there is preferably only a punctiform contact area for minimizing the heat transfer (in each case).

Schließlich sind, wie insbesondere Figur 2 und 3 zeigt, bei Verwendung mehrerer Distanzelemente 9 zwischen diesen am zuführungsabgewandten Ende des Strömungsführungselements 6 den Hülseninnenraum 7 mit dem Hülsenaussenraum 8 pneumatisch verbindende Ausnehmungen 10 vorgesehen. Diese dienen dazu, das Gas-Luft-Gemisch im Zusammenwirken mit der Wölbung 13 möglichst gleichmäßig einem jeweils durch zwei Distanzelemente 9 gebildeten Strömungsspalt zuzuleiten, wodurch gleichzeitig auch die Stirnseite 4 gekühlt wird.Finally, as in particular FIG. 2 and 3 shows, when using a plurality of spacer elements 9 between these at the supply-remote end of the flow guide element 6 the sleeve interior 7 with the sleeve outer space 8 pneumatically connecting recesses 10 is provided. These serve to convey the gas-air mixture in cooperation with the curvature 13 as evenly as possible to a respective flow gap formed by two spacer elements 9, whereby at the same time the end face 4 is cooled.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Brennerkörpertorch body
22
Stirnseitefront
33
Zuführungfeed
44
Stirnseitefront
55
Brennflächeburning surface
66
StrömungsführugselementStrömungsführugselement
77
HülseninnenraumSleeve interior
88th
HülsenaußenraumSleeve outer space
99
Distanzelementspacer
1010
Ausnehmungrecess
1111
Rohrstückpipe section
1212
Rohrstückpipe section
1313
Wölbungbulge

Claims (13)

  1. A burner, comprising a cylindrical burner body (1) which, on one of its two front sides (2), has an infeed (3) for a fuel-air mixture to be burned, and which, on its other front side (4) is closed, and the circumferential surface of which is at least partially configured as combustion surface (5), wherein in the burner body (1), a sleeve-shaped flow guiding element (6) is arranged for the fuel-air mixture, which flow guiding element is connected to the infeed (3) that extends up into the region of the closed front side (4) and defines an inner sleeve chamber (7) and an outer sleeve chamber (8) which are pneumatically connected to each other in the region of the closed front side (4), wherein the outer sleeve chamber (8) is formed in an annular-gap-like manner and extends at least between the combustion surface (5) and the flow guiding element (6), wherein the annular-gap-like outer sleeve chamber (8), at least in the region of the combustion surface (5), is formed with regard to its flow cross-section in such a manner that it becomes smaller in the direction of the infeed (3),
    characterized in
    that the flow guiding element (6) is formed such that a flow can freely pass through the flow opening from the infeed front side (2) up to the region of the closed front side (4).
  2. The burner according to claim 1,
    characterized in
    that the flow guiding element (6) is formed conically at least on the outer sleeve chamber side and at least in the region of the combustion surface (5).
  3. The burner according to claim 1 or claim 2,
    characterized in
    that the flow guiding element (6) is formed conically on the inner sleeve chamber side.
  4. The burner according to claim 2 and claim 3,
    characterized in
    that the flow guiding element (6) as a whole is formed conically from sheet metal.
  5. The burner according to any one of the claims 1 to 4,
    characterized in
    that the infeed side end of the flow guiding element (6) has an outer diameter that corresponds to an inner diameter on the infeed side of the burner body (1).
  6. The burner according to any one of the claims 1 to 5,
    characterized in
    that on the outer sleeve chamber side at least one, preferably three or more spacer element(s) (9) is (are) arranged on the flow guiding element (6).
  7. The burner according to claim 6,
    characterized in
    that the spacer element (9) as a strip-shaped component for guiding the flow is arranged at least in the region of the combustion surface (5).
  8. The burner according to claim 6 or claim 7,
    characterized in
    that the spacer element (9) is formed so as to rest against an inner side of the burner body (1).
  9. The burner according to any one of the claims 6 to 8,
    characterized in
    that the spacer element (9) forms an axial support of the flow guiding element (6) on the closed front side (4).
  10. The burner according to any one of the claims 6 to 9,
    characterized in
    that when using a plurality of spacer elements (9), recesses (10) that pneumatically connect the inner sleeve chamber (7) to the outer sleeve chamber (8) are provided between said spacer elements at that end of the flow guiding element (6) that faces away from the infeed.
  11. The burner according to any one of the claims 1 to 10,
    characterized in
    that the burner body (1) is formed from a cylindrical shell surface with through holes, and said shell surface is enclosed by the combustion surface (5) that is formed from metallic wires.
  12. The burner according to any one of the claims 1 to 11,
    characterized in
    that the outer burner body (1) is formed from a first hollow-cylindrical tube piece (11) forming the infeed (3), from a second hollow-cylindrical tube piece (12) that is enclosed by the combustion surface (5) and has passage openings for the fuel-air mixture, and from a front side (4) that is configured in a cover-like manner.
  13. The burner according to any one of the claims 1 to 12,
    characterized in
    that the closed front side (4) of the burner body (1) has a convex curvature (13) that faces toward the flow guiding element (6).
EP20080017776 2007-10-10 2008-10-10 Burner Active EP2048440B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007048795A DE102007048795A1 (en) 2007-10-10 2007-10-10 burner

Publications (2)

Publication Number Publication Date
EP2048440A1 EP2048440A1 (en) 2009-04-15
EP2048440B1 true EP2048440B1 (en) 2013-10-02

Family

ID=40076628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080017776 Active EP2048440B1 (en) 2007-10-10 2008-10-10 Burner

Country Status (2)

Country Link
EP (1) EP2048440B1 (en)
DE (1) DE102007048795A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US364105A (en) * 1887-05-31 Watch
DE1529216A1 (en) * 1965-11-03 1969-11-13 Nat Res Dev Gas burner
FR2478265A1 (en) 1980-03-17 1981-09-18 Sdecc BURNER WITH PREMELANGE OF AIR AND BLOW GAS
DE8605654U1 (en) 1986-03-01 1987-07-02 Ruhrgas Ag, 4300 Essen Burners for gaseous fuels
GB2237104B (en) * 1989-10-20 1993-07-21 Bowin Designs Pty Ltd Gas burner
DE4331231A1 (en) 1993-09-15 1995-03-16 Fev Motorentech Gmbh & Co Kg Process for regulating the flame quality of an atmospheric gas burner and gas burner for carrying out the process
DE69812219T2 (en) 1997-05-23 2004-02-05 Worgas Bruciatori S.R.L. A cylindrical gas burner
EP1538395A1 (en) 2003-12-05 2005-06-08 Riello S.p.a. Premix burner combustion head

Also Published As

Publication number Publication date
EP2048440A1 (en) 2009-04-15
DE102007048795A1 (en) 2009-04-16

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