EP0564313A1 - Burner head for gas burner and burner with such a head - Google Patents

Burner head for gas burner and burner with such a head Download PDF

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Publication number
EP0564313A1
EP0564313A1 EP93400655A EP93400655A EP0564313A1 EP 0564313 A1 EP0564313 A1 EP 0564313A1 EP 93400655 A EP93400655 A EP 93400655A EP 93400655 A EP93400655 A EP 93400655A EP 0564313 A1 EP0564313 A1 EP 0564313A1
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EP
European Patent Office
Prior art keywords
deflector
nozzle
fins
combustion head
head according
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Granted
Application number
EP93400655A
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German (de)
French (fr)
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EP0564313B1 (en
Inventor
Louis Lauliac
Fabrice Masoni
François Porru
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CUENOD THERMOTECHNIQUE SA
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CUENOD THERMOTECHNIQUE SA
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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
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion

Definitions

  • the present invention relates to a combustion head for a gas burner, and has for its object such a combustion head arranged so that the combustion gases discharged are below the tolerances fixed by the standards, in particular the oxide of 'nitrogen.
  • a combustion head for a gas burner comprises a tubular nozzle of revolution, at least one fuel supply nozzle mounted inside said nozzle, a deflector with inclined fins, forming between them substantially radial slots, a main supply of oxidant, effected through the slots of said deflector, said burner further comprising a peripheral annular channel located inside said nozzle and equipped with longitudinal fins, extending radially, for the guiding the oxidant passing through the peripheral channel and, according to the important characteristic of the present invention, the substantially radial slots formed, between them, by the inclined fins of the deflector are, circumferentially, arranged in line with the longitudinal fins.
  • the Applicant has, in fact, found, experimentally, after having disposed the deflector in all the relative positions of the slots of the fins of the deflector relative to the longitudinal fins, that it is when said slots coincide with the longitudinal fins that the rate of the oxides nitrogen present in the flue gases is lowest.
  • the deflector is carried by a star-shaped gas distribution support mounted axially on the supply nozzle disposed along the axis of the nozzle.
  • the star-shaped gas distribution support is slidably mounted, along the axis of the nozzle; the star support is slidably mounted on the supply nozzle.
  • the deflector is carried by a plurality of nozzles arranged circumferentially, around the axis of the nozzle, and ensuring the distribution of the gas; advantageously, the assembly formed by the plurality of nozzles and the deflector is axially adjustable.
  • the circumferential positioning of the deflector is ensured by the longitudinal fins.
  • the peripheral annular channel has a decreasing section towards the outside, the end piece ending in a frustoconical part.
  • the deflector is placed near the outlet of the end piece, in the so-called "front clamping" position.
  • the diametrical size of the deflector fins is slightly greater than the diameter of the circle passing through the inner edges of the longitudinal fins, so that the fins are held by wedging.
  • the invention also relates to a gas burner comprising a combustion head according to the present invention.
  • the combustion head 1 comprises a tubular nozzle 2, of revolution about an axis 3.
  • a main nozzle 4 in the form of a hollow tube, allows the supply of fuel, which is propelled outside the nozzle by the end face 5 thereof;
  • a star support 6 is pierced with an axial bore 7 by which it is slidably mounted on the main nozzle 4, with interposition of a seal 8;
  • an adjustment rod 9 makes it possible to adjust the position of the support 6 along the main nozzle 4.
  • the branches of the star of the star support 6 define, on the one hand, passages, identified by the arrows 17, 18, for the main air blown into the combustion head, from right to left in FIG. 1 , and, on the other hand, radial passages for the fuel, identified by arrows 10 and 11, in combination with a deflector 12 secured to the support 6 on the part 13 of the front face of said support 6, located in the center, l the other part 14, located at the periphery, being slightly offset axially towards the nozzle 4.
  • the deflector 12 comprises a plurality of fins 15, six fins in the example shown; the fins 15 are inclined relative to a plane perpendicular to the axis 3; they thus form, between them, radial slots 16, visible in FIG. 2.
  • the deflector 12 is, as is known, intended for stabilizing the flames of the blast air burner: it is, moreover, often called “ flame catcher “by a person skilled in the art; the inclination of the fins 15 makes it possible to impart a rotational movement to the main fuel-oxidant mixture.
  • the tubular end piece 2 comprises a part 2a, of circular section, and a frustoconical part 2b converging towards the outside; inside the end piece 2, longitudinal fins 19 are arranged in the peripheral channel, identified by the arrow 20, existing between the external periphery 21 of the star support 6, and the internal surface of the end piece 2.
  • the radial slots 16, between the fins 15, are placed in line with the transverse fins 17: this is visible in FIG. 2; it is, in fact, in this relative position that the rate of nitrogen oxides present in the burnt gases, at the outlet of the burner, is the lowest, as the applicant has observed following numerous tests ; these tests also revealed that, in combination with this arrangement, the axial position of the deflector 12 being conditioned by the axial adjustment of the star support 6, usually used to adjust the quantity and the speed of the secondary peripheral air, passing through the channel 20 , the nitrogen oxides rate is lowest when the deflector is closest to the burner outlet, in the so-called "front-clamping" position, to use the term used in the art, as shown in Figure 1.
  • the diametrical size of the fins of the deflector 12 is slightly greater than the diameter of the circle passing through the inner edges of the longitudinal fins 19: thanks to this arrangement, the support 6 is presented in the end piece having its axis inclined relative to that of the end piece, then the support 6 is straightened to make its axis coincide with that of the end piece; at the end of this maneuver, the edges of the fins 15 are wedged on the inner edges of the fins 19.
  • the combustion head which has just been described comprises a nozzle (4) for fuel supply, mounted axially inside said nozzle, on which is slidably mounted, axially, the star support (6) which carries the deflector ( 12); alternatively, not shown, the distribution of the gas is ensured by a plurality of nozzles (4) arranged circumferentially, around the axis of the nozzle, and carrying the deflector (12), the assembly formed by the nozzles and the deflector being axially adjustable on an adjustment rod arranged along the axis of the end piece (2).
  • combustion head for a gas burner
  • the invention also relates to a burner equipped with such a head.

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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)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)

Abstract

Burner head (1) for gas burner, comprising a rotationally tubular endpiece (2), a spray nozzle (4) for feeding fuel mounted inside said endpiece (2), a deflector (12) with inclined fins (15), forming between them essentially radial slots (16), a main oxidant feed, brought about through the slots (16) of said deflector (12), said head (1) comprising moreover a peripheral annular duct (20) situated inside said endpiece (2) and equipped with longitudinal fins (19) extending radially for guiding the oxidant passing through the peripheral duct (20) the essentially radial slots (16) being arranged circumferentially in line with the longitudinal fins (19). <IMAGE>

Description

La présente invention concerne une tête de combustion pour brûleur à gaz, et a pour objet une telle tête de combustion agencée de manière à ce que les gaz de combustion rejetés soient en-dessous des tolérances fixées par les normes, en particulier l'oxyde d'azote.The present invention relates to a combustion head for a gas burner, and has for its object such a combustion head arranged so that the combustion gases discharged are below the tolerances fixed by the standards, in particular the oxide of 'nitrogen.

De nombreuses dispositions ont été prises, jusqu'ici, pour diminuer le taux d'oxydes d'azote contenu dans les gaz de combustion des brûleurs, en particulier à gaz.Many measures have been taken so far to reduce the rate of nitrogen oxides contained in the combustion gases of burners, in particular gas.

On sait qu'une combustion complète dépend d'un certain nombre de facteurs, comme la finesse des particules du combustible, la proportion du mélange combustible-comburant, le guidage du combustible et du comburant pour assurer le mélange adéquat...La demanderesse a constaté que, toutes choses étant égales par ailleurs, ce dernier facteur, à savoir le guidage du combustible et du comburant, a une importance particulière, notamment en ce qui concerne les oxydes d'azote.It is known that complete combustion depends on a certain number of factors, such as the fineness of the fuel particles, the proportion of the fuel-oxidant mixture, the guidance of the fuel and of the oxidant to ensure adequate mixing ... The Applicant has noted that, all other things being equal, this last factor, namely the guidance of the fuel and of the oxidant, is of particular importance, in particular with regard to nitrogen oxides.

Ainsi, une tête de combustion pour brûleur à gaz, selon l'invention, comporte un embout tubulaire de révolution, au moins un gicleur d'alimentation en combustible monté à l'intérieur dudit embout, un déflecteur à ailettes inclinées, ménageant entre elles des fentes sensiblement radiales, une alimentation principale en comburant, effectuée à travers les fentes dudit déflecteur, ledit brûleur comprenant, en outre, un canal annulaire périphérique situé à l'intérieur dudit embout et équipé d'ailettes longitudinales, s'étendant radialement, pour le guidage du comburant traversant le canal périphérique et, selon la caractéristique importante de la présente invention, les fentes sensiblement radiales ménagées, entre elles, par les ailettes inclinées du déflecteur sont, circonférentiellement, disposées au droit des ailettes longitudinales.Thus, a combustion head for a gas burner, according to the invention, comprises a tubular nozzle of revolution, at least one fuel supply nozzle mounted inside said nozzle, a deflector with inclined fins, forming between them substantially radial slots, a main supply of oxidant, effected through the slots of said deflector, said burner further comprising a peripheral annular channel located inside said nozzle and equipped with longitudinal fins, extending radially, for the guiding the oxidant passing through the peripheral channel and, according to the important characteristic of the present invention, the substantially radial slots formed, between them, by the inclined fins of the deflector are, circumferentially, arranged in line with the longitudinal fins.

La demanderesse a, en effet, constaté, expérimentalement, après avoir disposé le déflecteur dans toutes les positions relatives des fentes des ailettes du déflecteur par rapport aux ailettes longitudinales, que c'est lorsque lesdites fentes coïncident avec les ailettes longitudinales que le taux des oxydes d'azote présents dans les gaz brûlés est le plus bas.The Applicant has, in fact, found, experimentally, after having disposed the deflector in all the relative positions of the slots of the fins of the deflector relative to the longitudinal fins, that it is when said slots coincide with the longitudinal fins that the rate of the oxides nitrogen present in the flue gases is lowest.

Avantageusement, le déflecteur est porté par un support étoilé de répartition de gaz monté, axialement, sur le gicleur d'alimentation disposé selon l'axe de l'embout.Advantageously, the deflector is carried by a star-shaped gas distribution support mounted axially on the supply nozzle disposed along the axis of the nozzle.

De préférence, le support étoilé de répartition de gaz est monté coulissant, selon l'axe de l'embout ; le support étoilé est monté coulissant sur le gicleur d'alimentation.Preferably, the star-shaped gas distribution support is slidably mounted, along the axis of the nozzle; the star support is slidably mounted on the supply nozzle.

En variante, le déflecteur est porté par une pluralité de gicleurs disposés circonférentiellement, autour de l'axe de l'embout, et assurant la répartition du gaz ; avantageusement, l'ensemble formé par la pluralité de gicleurs et le déflecteur est réglable axialement.As a variant, the deflector is carried by a plurality of nozzles arranged circumferentially, around the axis of the nozzle, and ensuring the distribution of the gas; advantageously, the assembly formed by the plurality of nozzles and the deflector is axially adjustable.

De manière préférée, le positionnement, circonférentiellement, du déflecteur est assuré par les ailettes longitudinales.Preferably, the circumferential positioning of the deflector is ensured by the longitudinal fins.

De préférence, le canal annulaire périphérique a une section décroissante vers l'extérieur, l'embout se terminant par une partie tronconique.Preferably, the peripheral annular channel has a decreasing section towards the outside, the end piece ending in a frustoconical part.

Selon une disposition avantageuse, le déflecteur est placé près de la sortie de l'embout, dans la position dite de "serrage-avant".According to an advantageous arrangement, the deflector is placed near the outlet of the end piece, in the so-called "front clamping" position.

De préférence, l'encombrement diamétral des ailettes du déflecteur est légèrement supérieur au diamètre du cercle passant par les bords intérieurs des ailettes longitudinales, en sorte que les ailettes sont maintenues par coincement.Preferably, the diametrical size of the deflector fins is slightly greater than the diameter of the circle passing through the inner edges of the longitudinal fins, so that the fins are held by wedging.

L'invention a également pour objet un brûleur à gaz comportant une tête de combustion selon la présente invention.The invention also relates to a gas burner comprising a combustion head according to the present invention.

Pour mieux faire comprendre l'objet de l'invention, on va en décrire, maintenant, à titre d'exemple purement illustratif et non limitatif, un mode de réalisation représenté sur le dessin annexé.To better understand the object of the invention, we will now describe, by way of purely illustrative and nonlimiting example, an embodiment shown in the accompanying drawing.

Sur ce dessin :

  • la figure 1 montre, en coupe, en partie, un tête de combustion conforme à l'invention, pour brûleur à gaz.
  • la figure 2 est une vue axiale du brûleur montré sur la figure 1.
On this drawing :
  • Figure 1 shows, in section, in part, a combustion head according to the invention, for gas burner.
  • FIG. 2 is an axial view of the burner shown in FIG. 1.

En se reportant à la figure 1, la tête de combustion 1 comporte un embout tubulaire 2, de révolution autour d'un axe 3. Selon l'axe 3, un gicleur principal 4, en forme de tube creux, permet l'alimentation en combustible, lequel est propulsé à l'extérieur du gicleur par la face d'extrémité 5 de celui-ci ; un support étoilé 6 est percé d'un alésage axial 7 par lequel il est monté coulissant sur le gicleur principal 4, avec interposition d'un joint 8 ; une tige de réglage 9 permet d'ajuster la position du support 6 le long du gicleur principal 4.Referring to Figure 1, the combustion head 1 comprises a tubular nozzle 2, of revolution about an axis 3. According to axis 3, a main nozzle 4, in the form of a hollow tube, allows the supply of fuel, which is propelled outside the nozzle by the end face 5 thereof; a star support 6 is pierced with an axial bore 7 by which it is slidably mounted on the main nozzle 4, with interposition of a seal 8; an adjustment rod 9 makes it possible to adjust the position of the support 6 along the main nozzle 4.

Les branches de l'étoile du support étoilé 6 définissent , d'une part, des passages, repérés par les flèches 17, 18, pour l'air principal soufflé dans la tête de combustion, de la droite vers la gauche sur la figure 1, et, d'autre part, des passages radiaux pour le combustible, repérés par les flèches 10 et 11, en combinaison avec un déflecteur 12 solidarisé au support 6 sur la partie 13 de la face frontale dudit support 6, située au centre, l'autre partie 14, située à la périphérie, étant légèrement décalée axialement vers le gicleur 4.
Le déflecteur 12 comporte une pluralité d'ailettes 15, six ailettes dans l'exemple représenté ; les ailettes 15 sont inclinées par rapport à un plan perpendiculaire à l'axe 3 ; elles ménagent ainsi, entre elles, des fentes radiales 16, visibles sur la figure 2. Le déflecteur 12 est, comme on le sait, destiné à la stabilisation des flammes du brûleur à air soufflé: il est, d'ailleurs, souvent appelé "accroche-flamme" par l'homme du métier ; l'inclinaison des ailettes 15 permet d'imprimer un mouvement de rotation au mélange combustible-comburant principal.The branches of the star of the star support 6 define, on the one hand, passages, identified by the arrows 17, 18, for the main air blown into the combustion head, from right to left in FIG. 1 , and, on the other hand, radial passages for the fuel, identified by arrows 10 and 11, in combination with a deflector 12 secured to the support 6 on the part 13 of the front face of said support 6, located in the center, l the other part 14, located at the periphery, being slightly offset axially towards the nozzle 4.
The deflector 12 comprises a plurality of fins 15, six fins in the example shown; the fins 15 are inclined relative to a plane perpendicular to the axis 3; they thus form, between them, radial slots 16, visible in FIG. 2. The deflector 12 is, as is known, intended for stabilizing the flames of the blast air burner: it is, moreover, often called " flame catcher "by a person skilled in the art; the inclination of the fins 15 makes it possible to impart a rotational movement to the main fuel-oxidant mixture.

L'embout tubulaire 2 comprend une partie 2a, de section circulaire, et une partie 2b tronconique convergeant vers l'extérieur ; à l'intérieur de l'embout 2, des ailettes longitudinales 19 sont disposées dans le canal périphérique, repéré par la flèche 20, existant entre la périphérie extérieure 21 du support étoilé 6, et la surface intérieure de l'embout 2.The tubular end piece 2 comprises a part 2a, of circular section, and a frustoconical part 2b converging towards the outside; inside the end piece 2, longitudinal fins 19 are arranged in the peripheral channel, identified by the arrow 20, existing between the external periphery 21 of the star support 6, and the internal surface of the end piece 2.

Selon l'invention, les fentes radiales 16, entre les ailettes 15, sont placées au droit des ailettes transversales 17 : cela est visible sur la figure 2 ; c'est, en effet, dans cette position relative que le taux d'oxydes d'azote présents dans les gaz brûlés, à la sortie du brûleur, est le plus bas, comme l'a constaté la demanderesse à la suite de nombreux essais ; ces essais ont également révélé que, en combinaison avec cette disposition, la position axiale du déflecteur 12 étant conditionnée par le réglage axial du support étoilé 6, habituellement utilisé pour ajuster la quantité et la vitesse de l'air périphérique secondaire, traversant le canal 20, le taux d'oxydes d'azote est le plus bas lorsque le déflecteur est le plus près de la sortie du brûleur, dans la position dite de " serrage-avant ", pour employer le terme de l'homme du métier, comme le montre la figure 1.According to the invention, the radial slots 16, between the fins 15, are placed in line with the transverse fins 17: this is visible in FIG. 2; it is, in fact, in this relative position that the rate of nitrogen oxides present in the burnt gases, at the outlet of the burner, is the lowest, as the applicant has observed following numerous tests ; these tests also revealed that, in combination with this arrangement, the axial position of the deflector 12 being conditioned by the axial adjustment of the star support 6, usually used to adjust the quantity and the speed of the secondary peripheral air, passing through the channel 20 , the nitrogen oxides rate is lowest when the deflector is closest to the burner outlet, in the so-called "front-clamping" position, to use the term used in the art, as shown in Figure 1.

Pour maintenir le déflecteur 12, circonférentiellement, dans la position selon l'invention, l'encombrement diamétral des ailettes du déflecteur 12 est légèrement supérieur au diamètre du cercle passant par les bords intérieurs des ailettes longitudinales 19 : grâce à cette disposition, le support 6 est présenté dans l'embout en ayant son axe incliné par rapport à celui de l'embout, puis le support 6 est redressé pour faire coïncider son axe avec celui de l'embout ; à la fin de cette manoeuvre, les bords des ailettes 15 sont coincés sur les bords intérieurs des ailettes 19.To maintain the deflector 12, circumferentially, in the position according to the invention, the diametrical size of the fins of the deflector 12 is slightly greater than the diameter of the circle passing through the inner edges of the longitudinal fins 19: thanks to this arrangement, the support 6 is presented in the end piece having its axis inclined relative to that of the end piece, then the support 6 is straightened to make its axis coincide with that of the end piece; at the end of this maneuver, the edges of the fins 15 are wedged on the inner edges of the fins 19.

La tête de combustion qui vient d'être décrite comporte un gicleur (4) d'alimentation en combustible, monté axialement à l'intérieur dudit embout, sur lequel est monté coulissant, axialement, le support étoilé (6) qui porte le déflecteur (12) ; en variante, non représentée, la répartition du gaz est assurée par une pluralité de gicleurs (4) disposés circonférentiellement, autour de l'axe de l'embout, et portant le déflecteur (12), l'ensemble formé par les gicleurs et le déflecteur étant réglable axialement sur une tige de réglage disposée selon l'axe de l'embout (2).The combustion head which has just been described comprises a nozzle (4) for fuel supply, mounted axially inside said nozzle, on which is slidably mounted, axially, the star support (6) which carries the deflector ( 12); alternatively, not shown, the distribution of the gas is ensured by a plurality of nozzles (4) arranged circumferentially, around the axis of the nozzle, and carrying the deflector (12), the assembly formed by the nozzles and the deflector being axially adjustable on an adjustment rod arranged along the axis of the end piece (2).

On vient de décrire une tête de combustion, selon l'invention, pour brûleur à gaz ; l'invention a également pour objet un brûleur équipé d'une telle tête.We have just described a combustion head, according to the invention, for a gas burner; the invention also relates to a burner equipped with such a head.

Claims (10)

1) Tête de combustion (1) pour brûleur à gaz, comportant un embout (2) tubulaire de révolution, au moins un gicleur (4) d'alimentation en combustible monté à l'intérieur dudit embout (2), un déflecteur (12) à ailettes (15) inclinées, ménageant entre elles des fentes (16) sensiblement radiales, une alimentation principale en comburant, effectuée à travers les fentes (16) dudit déflecteur (12), ladite tête (1) comprenant, en outre, un canal annulaire périphérique (20) situé à l'intérieur dudit embout (2) et équipé d'ailettes (19) longitudinales, s'étendant radialement, pour le guidage du comburant traversant le canal périphérique (20), caractérisé par le fait que les fentes (16) sensiblement radiales ménagées entre elles, par les ailettes (15) inclinées du déflecteur (12), sont, circonférentiellement, disposées au droit des ailettes (19) longitudinales ; 1) Combustion head (1) for a gas burner, comprising a tubular nozzle (2) of revolution, at least one fuel supply nozzle (4) mounted inside said nozzle (2), a deflector (12 ) with inclined fins (15), forming between them substantially radial slots (16), a main supply of oxidant, carried out through the slots (16) of said deflector (12), said head (1) further comprising a peripheral annular channel (20) located inside said end piece (2) and equipped with longitudinal fins (19), extending radially, for guiding the oxidant passing through the peripheral channel (20), characterized in that the slots (16) substantially radial formed between them, by the inclined fins (15) of the deflector (12), are, circumferentially, arranged in line with the longitudinal fins (19); 2) Tête de combustion selon la revendication 1, caractérisée par le fait que le déflecteur (12) est porté par un support étoilé (6) de répartition de gaz monté axialement, sur le gicleur (4) d'alimentation disposé selon l'axe de l'embout (2) ; 2) Combustion head according to claim 1, characterized in that the deflector (12) is carried by a star support (6) of gas distribution axially mounted, on the nozzle (4) supply arranged along the axis the end piece (2); 3) Tête de combustion selon la revendication 2, caractérisé par le fait que le support étoilé (6) est monté coulissant sur le gicleur (4) d'alimentation ; 3) combustion head according to claim 2, characterized in that the star support (6) is slidably mounted on the nozzle (4) supply; 4) Tête de combustion selon la revendication 1, caractérisé par le fait que le déflecteur (12) est porté par une pluralité de gicleurs disposés circonférentiellement, autour de l'axe de l'embout, et assurant la répartition du gaz ; 4) Combustion head according to claim 1, characterized in that the deflector (12) is carried by a plurality of nozzles arranged circumferentially, around the axis of the nozzle, and ensuring the distribution of the gas; 5) Tête de combustion selon la revendication 4, caractérisé par le fait que l'ensemble formé par la pluralité de gicleurs et le déflecteur (12) est réglable axialement ; 5) Combustion head according to claim 4, characterized in that the assembly formed by the plurality of nozzles and the deflector (12) is axially adjustable; 6) Tête de combustion selon l'une des revendications 1 à 5, caractérisée par le fait que le positionnement, circonférentiellement, du déflecteur (12) est assuré par les ailettes longitudinales (19) ; 6) Combustion head according to one of claims 1 to 5, characterized in that the positioning, circumferentially, of the deflector (12) is ensured by the longitudinal fins (19); 7) Tête de combustion selon l'une des revendications 1 à 6, caractérisée par le fait que le canal annulaire périphérique (20) a une section décroissante vers l'extérieur, l'embout (2) se terminant par une partie tronconique (2b) ; 7) Combustion head according to one of claims 1 to 6, characterized in that the peripheral annular channel (20) has a decreasing section outwards, the nozzle (2) ending in a frustoconical part (2b ); 8) Tête de combustion selon l'une des revendications 1 à 7, caractérisée par le fait que le déflecteur (12) est placé près de la sortie de l'embout (2), dans la position dite de "serrage-avant" ; 8) Combustion head according to one of claims 1 to 7, characterized in that the deflector (12) is placed near the outlet of the nozzle (2), in the position called "clamping-before"; 9) Tête de combustion selon l'une des revendications 6 à 8, caractérisée par le fait que l'encombrement diamétral des ailettes (15) du déflecteur (12) est légèrement supérieur au diamètre du cercle passant par les bords intérieurs des ailettes longitudinales (19), en sorte que les ailettes (15) sont maintenues par coincement ; 9) Combustion head according to one of claims 6 to 8, characterized in that the diametrical size of the fins (15) of the deflector (12) is slightly greater than the diameter of the circle passing through the inner edges of the longitudinal fins ( 19), so that the fins (15) are held by wedging; 10) Brûleur à gaz, caractérisé par le fait qu'il comporte une tête de combustion selon l'une des revendications 1 à 9 précédentes. 10) Gas burner, characterized in that it comprises a combustion head according to one of claims 1 to 9 above.
EP93400655A 1992-04-03 1993-03-16 Burner head for gas burner and burner with such a head Expired - Lifetime EP0564313B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9204065 1992-04-03
FR9204065A FR2689616B1 (en) 1992-04-03 1992-04-03 Combustion head for gas burner, and burner equipped with such a head.

Publications (2)

Publication Number Publication Date
EP0564313A1 true EP0564313A1 (en) 1993-10-06
EP0564313B1 EP0564313B1 (en) 1995-11-29

Family

ID=9428434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93400655A Expired - Lifetime EP0564313B1 (en) 1992-04-03 1993-03-16 Burner head for gas burner and burner with such a head

Country Status (4)

Country Link
EP (1) EP0564313B1 (en)
AT (1) ATE130923T1 (en)
DE (1) DE69300890T2 (en)
FR (1) FR2689616B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0660039A1 (en) * 1993-12-24 1995-06-28 Gaz De France (Service National) Burner head for gas burner, burner provided with such a head and combustion process
CZ305842B6 (en) * 2014-06-13 2016-04-06 Vysoké Učení Technické V Brně Burner head of injector-type stabilization burner

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229915A (en) * 1963-05-03 1966-01-18 Standard Oil Co Combustion air directing apparatus
DE1751882A1 (en) * 1968-08-13 1972-04-20 Elco Oel & Gasbrenner Gas burners, especially for natural gas
DE8715156U1 (en) * 1987-11-14 1988-01-07 Klöckner & Co KGaA, 7450 Hechingen Mixing device for gas and/or oil burners
DE8814690U1 (en) * 1988-11-25 1989-01-05 Alfred Kärcher GmbH & Co, 7057 Winnenden Fossil fuel burners
DE3815311A1 (en) * 1988-05-05 1989-11-16 Koerting Ag Mixing device for oil burners
FR2641057A1 (en) * 1988-12-27 1990-06-29 Cuenod Thermotech Sa Combustion head for a gas burner, or combined gas-and-paraffin burner and burner equipped with such a head
DE9012283U1 (en) * 1990-08-09 1991-01-03 Hofamat Hoffmann GmbH + Co. KG Ölbrenner- und Gasbrennerwerk, 7730 Villingen-Schwenningen Burners for liquid fuels

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229915A (en) * 1963-05-03 1966-01-18 Standard Oil Co Combustion air directing apparatus
DE1751882A1 (en) * 1968-08-13 1972-04-20 Elco Oel & Gasbrenner Gas burners, especially for natural gas
DE8715156U1 (en) * 1987-11-14 1988-01-07 Klöckner & Co KGaA, 7450 Hechingen Mixing device for gas and/or oil burners
DE3815311A1 (en) * 1988-05-05 1989-11-16 Koerting Ag Mixing device for oil burners
DE8814690U1 (en) * 1988-11-25 1989-01-05 Alfred Kärcher GmbH & Co, 7057 Winnenden Fossil fuel burners
FR2641057A1 (en) * 1988-12-27 1990-06-29 Cuenod Thermotech Sa Combustion head for a gas burner, or combined gas-and-paraffin burner and burner equipped with such a head
DE9012283U1 (en) * 1990-08-09 1991-01-03 Hofamat Hoffmann GmbH + Co. KG Ölbrenner- und Gasbrennerwerk, 7730 Villingen-Schwenningen Burners for liquid fuels

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0660039A1 (en) * 1993-12-24 1995-06-28 Gaz De France (Service National) Burner head for gas burner, burner provided with such a head and combustion process
FR2714455A1 (en) * 1993-12-24 1995-06-30 Gaz De France Improved combustion head for gas burner, burner equipped with such a head and combustion method.
CZ305842B6 (en) * 2014-06-13 2016-04-06 Vysoké Učení Technické V Brně Burner head of injector-type stabilization burner

Also Published As

Publication number Publication date
DE69300890T2 (en) 1996-04-18
DE69300890D1 (en) 1996-01-11
FR2689616B1 (en) 1994-09-23
EP0564313B1 (en) 1995-11-29
FR2689616A1 (en) 1993-10-08
ATE130923T1 (en) 1995-12-15

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