EP0472120B1 - Gasburner - Google Patents

Gasburner Download PDF

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Publication number
EP0472120B1
EP0472120B1 EP91113723A EP91113723A EP0472120B1 EP 0472120 B1 EP0472120 B1 EP 0472120B1 EP 91113723 A EP91113723 A EP 91113723A EP 91113723 A EP91113723 A EP 91113723A EP 0472120 B1 EP0472120 B1 EP 0472120B1
Authority
EP
European Patent Office
Prior art keywords
outlet openings
nozzles
gas
gas burner
elevations
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.)
Expired - Lifetime
Application number
EP91113723A
Other languages
German (de)
French (fr)
Other versions
EP0472120A3 (en
EP0472120A2 (en
Inventor
Gerhard Weber
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.)
N.V. VAILLANT S.A.
Vaillant Austria GmbH
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
Original Assignee
Vaillant Austria GmbH
Nv Vaillant Sa
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
Vaillant BV
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 Vaillant Austria GmbH, Nv Vaillant Sa, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant SARL, Vaillant Ltd, Vaillant BV filed Critical Vaillant Austria GmbH
Publication of EP0472120A2 publication Critical patent/EP0472120A2/en
Publication of EP0472120A3 publication Critical patent/EP0472120A3/en
Application granted granted Critical
Publication of EP0472120B1 publication Critical patent/EP0472120B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a gas burner according to the preamble of the claim.
  • a two-part gas burner, in particular for a stool cooker, in which the outlet openings are arranged distributed over the entire surface of the upper part, has become known from DE-GM 85 13 182.
  • the outlet openings are designed as punched holes, to which there are only low precision requirements.
  • the aim of the invention is to propose a gas burner of the type mentioned at the outset, which is cheaper to manufacture and whose outlet openings meet high precision requirements.
  • the outlet openings or the nozzles being able to be arranged in the intended places with high accuracy, so that the intended center distances of the burner nozzles from each other can be adhered to very precisely.
  • the deep drawing of the upper part allows the nozzles to be arranged at the same height with high accuracy, as a result of which the entire surface of the upper side of the nozzle plate is stabilized.
  • the softer design of the lower part results in advantages with regard to the gas-tight connection of the two parts of the nozzle plate, since the lower part with its edges can be pressed very well onto the upper part, even with a limited deformation of the former. In this way, it is also possible to connect the two parts to one another by means of a collar flange, whereby a warping of the upper part can be avoided due to the softer design of the lower part.
  • the burner nozzles can be equipped with a cylindrical shaft, which is machined to a diameter that is suitable for the press.
  • the top-side receptacle is designed as a retracted collar with a cylindrical inner diameter, which has the associated press fit diameter.
  • the gas burner 1 is equipped with three parallel rows of nozzles 2, which are used in elevations 3.
  • This gas burner 1 has four openings 4 through which secondary air can flow from below to the flames.
  • channels 5 are provided in the area of the nozzles 2 arranged in rows, which are connected to one another and can be supplied by an essentially centrally arranged gas or mixture connection 6.
  • the metal gas burner 1 consists of an upper part 7, which is produced by deep drawing and provided with the elevations 3 and is designed to be very dimensionally stable, and a lower part 8, which has grooves 5 ′ for formation of the channels 5 and is of lower rigidity and dimensional stability than the upper part 7.
  • the nozzles 2 are pressed into the collar 11 of the outlet openings 12 of the elevations 3, the collar 11 receiving the tensions radially caused by the pressing in and thereby keeping the remaining part of the upper part 7 free of tension.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Nozzles (AREA)
  • Glass Compositions (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

Nozzle plate which can be supplied with a gas/air mixture and is provided with a number of outlet openings. In order to minimise the emission of NOx even in the case of relatively large nozzle plates (1) having a relatively large number of outlet openings (12), the nozzle plate (1) is provided with apertures (4) for the supply of secondary air, each of these apertures being arranged between two rows of outlet openings (12). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Gasbrenner gemäß dem Oberbegriff des Patentanspruchs.The invention relates to a gas burner according to the preamble of the claim.

Ein zweiteiliger Gasbrenner, insbesondere für einen Hockerkocher, bei dem die Auslaßöffnungen über die gesamte Fläche des Oberteils verteilt angeordnet sind, ist aus dem DE-GM 85 13 182 bekanntgeworden. Die Auslaßöffnungen sind dabei als Ausstanzungen ausgebildet, an die nur geringe Präzisionsanforderungen bestehen.A two-part gas burner, in particular for a stool cooker, in which the outlet openings are arranged distributed over the entire surface of the upper part, has become known from DE-GM 85 13 182. The outlet openings are designed as punched holes, to which there are only low precision requirements.

Ziel der Erfindung ist es, einen Gasbrenner der eingangs erwähnten Art vorzuschlagen, der preiswerter herstellbar ist und dessen Auslaßöffnungen hohen Präzisionsanforderungen genügen.The aim of the invention is to propose a gas burner of the type mentioned at the outset, which is cheaper to manufacture and whose outlet openings meet high precision requirements.

Erfindungsgemäß wird dies durch die kennzeichnenden Merkmale des Patentanspruchs erreicht.According to the invention, this is achieved by the characterizing features of the patent claim.

Durch diese Maßnahmen ergibt sich eine einfache Herstellung, wobei die Auslaßöffnungen beziehungsweise die Düsen mit hoher Genauigkeit an den vorgesehenen Plätzen angeordnet werden können, so daß die vorgesehenen Achsabstände der Brennerdüsen voneinander sehr genau eingehalten werden können. Außerdem lassen sich durch das Strecktiefziehen des Oberteiles die Düsen mit hoher Genauigkeit auf gleicher Höhe anordnen, wodurch die gesamte Fläche des Düsenplattenoberseite stabilisiert wird. Weiter ergeben sich durch die weichere Ausbildung des Unterteiles Vorteile im Hinblick auf die gasdichte Verbindung der beiden Teile der Düsenplatte, da eben der Unterteil mit seinen Rändern sehr gut an den Oberteil, auch unter einer begrenzten Verformung des ersteren, angepreßt werden kann. So ist es auf diese Weise auch möglich, die beiden Teile durch eine Kragenbördelung miteinander zu verbinden, wobei durch die weichere Ausbildung des Unterteiles ein Verzug des Oberteiles vermieden werden kann.These measures result in simple manufacture, the outlet openings or the nozzles being able to be arranged in the intended places with high accuracy, so that the intended center distances of the burner nozzles from each other can be adhered to very precisely. In addition, the deep drawing of the upper part allows the nozzles to be arranged at the same height with high accuracy, as a result of which the entire surface of the upper side of the nozzle plate is stabilized. Furthermore, the softer design of the lower part results in advantages with regard to the gas-tight connection of the two parts of the nozzle plate, since the lower part with its edges can be pressed very well onto the upper part, even with a limited deformation of the former. In this way, it is also possible to connect the two parts to one another by means of a collar flange, whereby a warping of the upper part can be avoided due to the softer design of the lower part.

Die Brennerdüsen können mit einem zylindrischen Schaft ausgestattet sein, welcher durch mechanische Bearbeitung einen preßpassungsgerechten Durchmesser erhält. Die oberteilseitige Aufnahme ist als ein eingezogener Kragen mit einem zylindrischen Innendurchmesser gestaltet, welcher den zugehörigen Preßsitz-Durchmesser aufweist. Durch diese Maßnahmen können die beim Einpressen der Düsen vom aufnehmenden Durchbruch aufzunehmenden Laibungskräfte gut verteilt werden. Außerdem wird durch den gezogenen Kragen auch erreicht, daß dieser die durch das Einpressen der Düse bedingten Spannungen radial aufnimmt und dabei der übrige Oberteil des Gasbrenners weitgehend spannungsfrei und damit verzugsfrei gehalten wird, was für seine Gasdichtheit von Vorteil ist.The burner nozzles can be equipped with a cylindrical shaft, which is machined to a diameter that is suitable for the press. The top-side receptacle is designed as a retracted collar with a cylindrical inner diameter, which has the associated press fit diameter. Through these measures, the reveal forces to be absorbed by the receiving opening when the nozzles are pressed in can be well distributed. In addition, the drawn collar also ensures that it radially absorbs the stresses caused by the pressing in of the nozzle, and the rest of the upper part of the gas burner is kept largely free of tension and thus free of distortion, which is advantageous for its gas tightness.

Die Erfindung wird nun anhand der Zeichnung näher erläutert.The invention will now be explained in more detail with reference to the drawing.

Dabei zeigen:

  • Fig. 1 eine Draufsicht auf einen Gasbrenner,
  • Fig. 2 einen Ausschnitt aus dem Gasbrenner nach der Fig. 1 und
  • Fig. 3 einen weiteren Ausschnitt aus dem Gasbrenner im Bereich eines Durchbruchs.
Show:
  • 1 is a plan view of a gas burner,
  • Fig. 2 shows a section of the gas burner according to FIGS. 1 and
  • 3 shows a further section from the gas burner in the region of an opening.

Der Gasbrenner 1 ist mit drei parallel zueinander verlaufenden Reihen von Düsen 2 bestückt, die in Erhebungen 3 eingesetzt sind.The gas burner 1 is equipped with three parallel rows of nozzles 2, which are used in elevations 3.

Dieser Gasbrenner 1 weist vier Durchbrüche 4 auf, durch die Sekundärluft von unten her zu den Flammen zuströmen kann.This gas burner 1 has four openings 4 through which secondary air can flow from below to the flames.

Im Inneren des Gasbrenners 1 sind Kanäle 5 im Bereich der in Reihen angeordneten Düsen 2 vorgesehen, die miteinander in Verbindung stehen und von einem im wesentlichen zentral angeordneten Gas- beziehungsweise Gemischanschluß 6 versorgbar sind.In the interior of the gas burner 1, channels 5 are provided in the area of the nozzles 2 arranged in rows, which are connected to one another and can be supplied by an essentially centrally arranged gas or mixture connection 6.

Wie aus den Fig. 2 und 3 zu ersehen ist, besteht der metallene Gasbrenner 1 aus einem Oberteil 7, der durch Strecktiefziehen hergestellt und mit den Erhebungen 3 versehen und sehr formstabil ausgebildet ist, und einem Unterteil 8, der mit Rinnen 5' zur Bildung der Kanäle 5 versehen und von geringerer Steifigkeit und Formstabilität als der Oberteil 7 ist.As can be seen from FIGS. 2 and 3, the metal gas burner 1 consists of an upper part 7, which is produced by deep drawing and provided with the elevations 3 and is designed to be very dimensionally stable, and a lower part 8, which has grooves 5 ′ for formation of the channels 5 and is of lower rigidity and dimensional stability than the upper part 7.

Diese beiden Teile 7 und 8 sind aus Blech geprägt und miteinander durch einen gezogene Kragen 9 unter Zwischenlage einer Dichtung 10 gasdicht verbunden. Statt der festen Dichtung 10 kann auch eine pastöse oder flüssige Dichtung vorgesehen sein, wobei zumindest die letztere zu einer gegebenenfalls elastisch verformbaren Masse erhärten muß.These two parts 7 and 8 are stamped from sheet metal and connected to one another in a gas-tight manner by a drawn collar 9 with the interposition of a seal 10. Instead of the fixed seal 10, a pasty or liquid seal can also be provided, at least the latter having to harden to an optionally elastically deformable mass.

Die Düsen 2 sind in nach innen eingezogene Kragen 11 der Auslaßöffnungen 12 der Erhebungen 3 eingepreßt, wobei die eingezogenen Kragen 11 die durch das Einpressen bedingten Spannungen radial aufnehmen und dadurch den übrigen Teil des Oberteiles 7 frei von Verspannungen halten.The nozzles 2 are pressed into the collar 11 of the outlet openings 12 of the elevations 3, the collar 11 receiving the tensions radially caused by the pressing in and thereby keeping the remaining part of the upper part 7 free of tension.

Aus der Fig. 3 ist zu ersehen, daß die beiden Teile 7, 8 im Bereich der Durchbrechungen 4 mittels Dichtungen 13, ähnlich O-Ringen, abgedichtet sind, die in Abstufungen 14 des Unterteiles 8 eingelegt sind.From Fig. 3 it can be seen that the two parts 7, 8 are sealed in the area of the openings 4 by means of seals 13, similar to O-rings, which are inserted in gradations 14 of the lower part 8.

Claims (1)

  1. Gas-fired burner consisting of two parts, the upper part (7) being made by stretch deep-drawing and provided with elevations (3) showing outlet openings (12) and the lower part (8) having incorporated grooves (5') which are positioned in the zone of the elevations (3) of the upper part (7) and the lower part (8) being gastightly connected with the upper part (7) by an intermediate seal, characterized by the fact that the outlet openings (12) are provided with collars (11) retracted to the inside (11) in which nozzles (2) are pressed and that the lower part (8) consists of a material less rigid than the upper part (7) and that its marginal zones (9) encompass the border of the upper part (7).
EP91113723A 1990-08-20 1991-08-16 Gasburner Expired - Lifetime EP0472120B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1708/90 1990-08-20
AT0170890A AT396817B (en) 1990-08-20 1990-08-20 BURNER PLATE

Publications (3)

Publication Number Publication Date
EP0472120A2 EP0472120A2 (en) 1992-02-26
EP0472120A3 EP0472120A3 (en) 1992-09-02
EP0472120B1 true EP0472120B1 (en) 1996-05-22

Family

ID=3519272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113723A Expired - Lifetime EP0472120B1 (en) 1990-08-20 1991-08-16 Gasburner

Country Status (3)

Country Link
EP (1) EP0472120B1 (en)
AT (2) AT396817B (en)
DE (2) DE9110245U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1254668B (en) * 1992-03-06 1995-09-28 Giorgio Scanferla ATMOSPHERIC GAS BURNER FOR WATER-HEATING APPLIANCES, IN PARTICULAR OF THE SO-CALLED TYPE
AT399032B (en) * 1992-10-02 1995-03-27 Vaillant Gmbh NOZZLE PLATE
FR2714155B1 (en) * 1993-12-21 1996-03-01 Sourdillon Sa Metal body for gas burner of infrared heater.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE476646C (en) * 1929-05-22 Ludwig Stiegler Mixture regulator for gas firing
GB320453A (en) * 1928-08-15 1929-10-17 Frederick King Improvements in, or relating to, gas burners
US2655210A (en) * 1950-10-04 1953-10-13 Blodgett G S Co Inc Sheet metal mixer for gas burners
GB805055A (en) * 1956-09-11 1958-11-26 H B Drew Ltd Improvements in or relating to heating elements for gas stoves and the like
DE8513182U1 (en) * 1985-05-04 1985-08-08 Justushütte, Zweigwerk der Fa. Heyligenstaedt & Co Werkzeugmaschinenfabrik GmbH, 3554 Gladenbach Gas burners, in particular for a stool
AT389065B (en) * 1987-10-07 1989-10-10 Vaillant Gmbh METHOD FOR PRODUCING A BURNER, IN PARTICULAR GAS BURNER, AND BURNER PRODUCED BY THIS METHOD

Also Published As

Publication number Publication date
EP0472120A3 (en) 1992-09-02
ATE138461T1 (en) 1996-06-15
AT396817B (en) 1993-12-27
DE9110245U1 (en) 1991-09-26
EP0472120A2 (en) 1992-02-26
DE59107834D1 (en) 1996-06-27
ATA170890A (en) 1993-04-15

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