EP0253926A1 - Heating apparatus for gaseous fuels and provided for being connected with a waste-gas duct - Google Patents

Heating apparatus for gaseous fuels and provided for being connected with a waste-gas duct Download PDF

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Publication number
EP0253926A1
EP0253926A1 EP86201311A EP86201311A EP0253926A1 EP 0253926 A1 EP0253926 A1 EP 0253926A1 EP 86201311 A EP86201311 A EP 86201311A EP 86201311 A EP86201311 A EP 86201311A EP 0253926 A1 EP0253926 A1 EP 0253926A1
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EP
European Patent Office
Prior art keywords
heating body
nozzle
burner
draft
siphons
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.)
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Application number
EP86201311A
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German (de)
French (fr)
Inventor
Michel Hervé
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Fonderies Du Lion SA
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Fonderies Du Lion SA
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Publication date
Priority to FR8501793A priority Critical patent/FR2577306A1/en
Application filed by Fonderies Du Lion SA filed Critical Fonderies Du Lion SA
Priority to EP86201311A priority patent/EP0253926A1/en
Publication of EP0253926A1 publication Critical patent/EP0253926A1/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
    • F23M9/003—Baffles or deflectors for air or combustion products; Flame shields in flue gas ducts
    • F23M9/006—Backflow diverters

Definitions

  • the present invention relates generally to independent heating appliances, operating with gaseous fuels and intended to be connected to a suitable flue, the combustion air being taken from the room where the appliance is installed.
  • These devices are commonly called chimney, wall or wall-mounted depending on the installation method.
  • such devices include inside a covering a combustion chamber - also called a heating body - adapted to receive in its lower part at least one burner, in which the gas is ignited, and the gas supply control members.
  • the products of combustion pass through the heating body and the heat exchange takes place with the ambient air in contact with its walls; said combustion products then pass into a box commonly called an anti-draft diverter generally fitted on the back of the heating body, and which is connected to the latter by one or more nozzles or collectors.
  • a box usually comprises a device suitable for reducing the influence of the draft, and possibly avoiding the harmful influence of the discharge wind on the operation. burner and combustion; the box also carries a nozzle for evacuating combustion products intended to ensure connection to an appropriate flue.
  • this box the depth of which is added to that of the heating body, is generally covered by the covering which is all the more expensive the deeper it is; it therefore contributes to increasing the size and the weight of the device, which obviously has repercussions on the cost of packaging, storage and shipping.
  • a box containing the draft diverter functions against the draft and integrated inside a heating body is known from US-A-3,536,060.
  • This patent describes a boiler whose useful heat exchange is only obtained by exchanger tubes in which a conveying fluid circulates.
  • the walls of this box which carries the evacuation nozzle do not contribute to the useful thermal efficiency of the boiler and the heat losses from these walls register as a loss with respect to this useful efficiency.
  • the present invention is, however, aimed at an independent heating appliance of the above kind, the simple construction of which makes it possible to lower the costs of the finished product, the costs of packaging and transport.
  • An independent heating device operating with gaseous fuels and intended to be connected to a smoke duct, of the type comprising a heating body adapted to receive at least one burner, a draft-proofing device against draft, organs of gas supply control and auxiliary equipment, characterized in that the evacuation nozzle is directly associated with one of the mainly active heat exchange walls of a one-piece heating body, and in that the draft diverter includes two siphons placed symmetrically on either side of the nozzle, each having a passage above the level of the horizontal axis of the nozzle, said axis being located in the median transverse plane of the heating body. and each of said siphons being situated substantially perpendicular to an opening made in the lateral side in correspondence and towards each of the two ends of the burner.
  • the heating body comprises above the burner and practically over its entire length a baffle adapted to bypass in its central zone the opening of the horizontal discharge nozzle and to extend symmetrically on either side. other of this area by having inclined end sections, which overhang lateral deflectors so as to thus participate in the constitution of the siphons.
  • the draft diverter device is advantageously integrated therein.
  • the front face, the rear face, the upper face and the lower face of the heating body are in one piece and are obtained by folding in one piece, which forms the envelope of the heating body of overall shape elongated parallelepiped.
  • the heating body Given the simple parallelepiped shape of the heating body, it is not necessary to cover it with a covering to hide it; only the gas supply controls and the auxiliary equipment can be grouped together inside a casing with the same profile as that of the heating body, placed at the end in its extension.
  • an apparatus intended to be connected to a smoke duct and operating with gaseous fuels consists essentially of a heating body containing the burner or burners.
  • the heating element according to the invention consists of an envelope 1 carrying the smoke evacuation nozzle 10H or 10V and each of its two lateral ends of which forms the draft-proofing device against draft by the combined arrangement of the cheeks 8A, 8B, deflectors 9A, 9B, and the central baffle 11.
  • the aforementioned envelope 1 is constituted by a front face 2, a rear face 3 carrying the smoke evacuation nozzle 10H suitable for a horizontal connection, an upper face 4 possibly carrying the smoke evacuation nozzle suitable for a vertical connection 10V, a lower face 5 comprising a longitudinal opening 6 intended for the passage of oxidizing air, obtained by the space left between the two plies 7 closing the envelope.
  • This envelope 1 is only partially closed in the upper part by a cheek 8A on one side, 8B on the other, and in the lower part by a deflected deflector 9A on one side, 9B on the other , these partially penetrating inside the envelope 1.
  • a central baffle 11 bypasses the opening 12 of the discharge nozzle 10H and extends symmetrically on either side to the top of the end of the side deflectors 9A, 9B; the sides 13A, 13B inclined downward, terminating the ends of the central baffle 11, contribute to forming a sort of siphon towards each of the lateral ends of the envelope.
  • the side deflectors 9A, 9B and the central baffle 11 are made integral with the front 2 and rear 3 faces of the casing 1; the same applies to the cheeks 8A, 8B which, moreover, are integral with the upper face 4.
  • the heating body thus formed carries in its lower part the burner 14 and has a symmetrical construction on either side of a median transverse plane.
  • this discharge current R is symmetrically channeled from side to side. other from this evacuation nozzle to the two lateral openings T useful in the draft-cutting function, then evacuated through them with the combustion products P which are entrained in passing, at the outlet of each siphon, by the speed of this discharge current.
  • the chamber containing the burner is then in slight depression, thus preventing the operation of the burner and combustion from being affected by this discharge.
  • a heating body can receive a suitable covering, the depth dimension of which will obviously be reduced, since the draft-reducing antireflection device is integrated into the thickness of the heating body.
  • the heating body is not necessarily covered by a covering.
  • the casing 1 mainly forming the heating body 15 of parallelepiped shape can be produced for example from ribbed sheet metal and extended by a casing 16 of the same profile containing the control members and the auxiliary apparatus.
  • the invention strongly accentuates its character of economic manufacture.
  • the invention is not limited to the construction method defined above and the parts of which are generally obtained by folding and assembled by welding or riveting.
  • the same principle can be achieved by more or less parts, either stamped, foundry or other, and be subject to modifications without departing from the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

According to the invention, the exhaust nozzle (10H) or (10V) is directly associated with one of the walls, principally acting for heat exchange, of a one-piece heating body and the no back-flow draught cut-off device comprises two syphons (S) placed symmetrically on either side of the nozzle (10H) or (10V) while each has a passage above the level of the horizontal axis of the nozzle (10H), the said axis being located in the median transverse plane of the heating body and each of the said syphons being located substantially vertically above an opening (T) provided in the corresponding lateral side and towards each of the two ends of the burner (14). <IMAGE>

Description

La présente invention se rapporte d'une manière géné­rale aux appareils de chauffage indépendants, fonction­nant avec des combustibles gazeux et destinés à être raccordés à un conduit de fumée approprié, l'air comburant étant prélevé dans le local où est installé l'appareil. Ces appareils sont dits couramment de cheminée, mural ou applique selon le mode d'installa­tion.The present invention relates generally to independent heating appliances, operating with gaseous fuels and intended to be connected to a suitable flue, the combustion air being taken from the room where the appliance is installed. These devices are commonly called chimney, wall or wall-mounted depending on the installation method.

D'une manière générale, de tels appareils comportent à l'intérieur d'un habillage une chambre de combustion - appelée aussi corps de chauffe - adaptée à recevoir dans sa partie basse au moins un brûleur, dans lequel le gaz est enflammé, et les organes de commande d'amenée de gaz. Les produits de la combustion traversent le corps de chauffe et l'échange calorifique se fait avec l'air ambiant en contact avec ses parois ; lesdits produits de combustion passent ensuite dans une boîte couramment appelée coupe-tirage antirefouleur aménagée généralement au dos du corps de chauffe, et qui est reliée à ce dernier par une ou plusieurs buses ou collecteurs. Une telle boîte comporte de manière usuelle un dispositif adapté à diminuer l'influence du tirage, et à éviter éventuellement l'influence néfaste du vent de refoulement sur le fonctionnement du brûleur et la combustion ; la boîte porte de plus une buse d'évacuation des produits de la combustion destinée à assurer le raccordement à un conduit de fumée approprié.In general, such devices include inside a covering a combustion chamber - also called a heating body - adapted to receive in its lower part at least one burner, in which the gas is ignited, and the gas supply control members. The products of combustion pass through the heating body and the heat exchange takes place with the ambient air in contact with its walls; said combustion products then pass into a box commonly called an anti-draft diverter generally fitted on the back of the heating body, and which is connected to the latter by one or more nozzles or collectors. Such a box usually comprises a device suitable for reducing the influence of the draft, and possibly avoiding the harmful influence of the discharge wind on the operation. burner and combustion; the box also carries a nozzle for evacuating combustion products intended to ensure connection to an appropriate flue.

On conçoit aisément que la fabrication d'une telle boîte avec les pièces afférentes et celles nécessaires à la li aison au dos du corps de chauffe, soient coû­teuses.It is easily understood that the manufacture of such a box with the related parts and those necessary for li aison on the back of the heating body, are expensive.

De plus, cette boîte, dont la profondeur s'ajoute à celle du corps de chauffe, est généralement recou­verte par l'habillage qui est d'autant plus coûteux qu'il est profond ; elle contribue donc à augmenter l'encombrement et le poids de l'appareil, ce qui se répercute évidemment sur le coût de l'emballage, du stockage et de l'expédition.In addition, this box, the depth of which is added to that of the heating body, is generally covered by the covering which is all the more expensive the deeper it is; it therefore contributes to increasing the size and the weight of the device, which obviously has repercussions on the cost of packaging, storage and shipping.

Un boîtier renfermant les fonctions de coupe-tirage antirefouleur et intégré à l'intérieur d'un corps de chauffe est connu par US-A-3 536 060. Ce brevet décrit cependant une chaudière dont l'échange thermique utile est uniquement obtenu par les tubes échangeurs dans lesquels circule un fluide transporteur. Les parois de ce boîtier qui porte la buse d'évacuation ne contribuent pas au rendement thermique utile de la chaudière et les déperditions calorifiques de ces parois s'inscrivent en perte par rapport à ce rende­ment utile.A box containing the draft diverter functions against the draft and integrated inside a heating body is known from US-A-3,536,060. This patent however describes a boiler whose useful heat exchange is only obtained by exchanger tubes in which a conveying fluid circulates. The walls of this box which carries the evacuation nozzle do not contribute to the useful thermal efficiency of the boiler and the heat losses from these walls register as a loss with respect to this useful efficiency.

La présente invention vise par contre un appareil de chauffage indépendant du genre ci-dessus, dont la construction simple permet d'abaisser les coûts du produit fini, les coûts d'emballage et de transport.The present invention is, however, aimed at an independent heating appliance of the above kind, the simple construction of which makes it possible to lower the costs of the finished product, the costs of packaging and transport.

Un appareil de chauffage indépendant selon l'invention, fonctionnant avec des combustibles gazeux et destiné à être raccordé à un conduit de fumée, du genre compre­nant un corps de chauffe adapté à recevoir au moins un brûleur, un dispositif coupe-tirage antirefouleur, des organes de commande d'amenée de gaz et un appareil­lage auxiliaire, se caractérisé en ce que la buse d'évacuation est directement associée à une des parois principalement active d'échange thermique d'un corps de chauffe monobloc, et en ce que le dispositif de coupe-tirage antirefouleur comprend deux siphons placés symétriquement de part et d'autre de la buse en ayant chacun un passage au-dessus du niveau de l'axe horizon­tal de la buse, ledit axe étant situé dans le plan transversal médian du corps de chauffe et chacun desdits siphons se trouvant situé sensiblement à l'aplomb d'une ouverture ménagée dans le côté latéral en corres­pondance et vers chacune des deux extrémités du brûleur.An independent heating device according to the invention, operating with gaseous fuels and intended to be connected to a smoke duct, of the type comprising a heating body adapted to receive at least one burner, a draft-proofing device against draft, organs of gas supply control and auxiliary equipment, characterized in that the evacuation nozzle is directly associated with one of the mainly active heat exchange walls of a one-piece heating body, and in that the draft diverter includes two siphons placed symmetrically on either side of the nozzle, each having a passage above the level of the horizontal axis of the nozzle, said axis being located in the median transverse plane of the heating body. and each of said siphons being situated substantially perpendicular to an opening made in the lateral side in correspondence and towards each of the two ends of the burner.

Suivant l'invention, le corps de chauffe comporte au-dessus du brûleur et pratiquement sur toute sa longueur une chicane adaptée à contourner dans sa zone centrale l'ouverture de la buse d'évacuation horizontale et à se prolonger symétriquement de part et d'autre de cette zone en ayant des pans inclinés terminaux, qui surplombent des déflecteurs latéraux de sorte à participer ainsi à la constitution des siphons.According to the invention, the heating body comprises above the burner and practically over its entire length a baffle adapted to bypass in its central zone the opening of the horizontal discharge nozzle and to extend symmetrically on either side. other of this area by having inclined end sections, which overhang lateral deflectors so as to thus participate in the constitution of the siphons.

Par la combinaison judicieuse de ces différents élé­ments composant un tel corps de chauffe, le dispositif de coupe-tirage antirefouleur s'y trouve avantageuse­ment intégré.By the judicious combination of these different elements making up such a heating body, the draft diverter device is advantageously integrated therein.

Suivant un mode de réalisation préférentielle de l'in­ vention la face avant, la face arrière, la face supé­rieure et la face inférieure du corps de chauffe sont d'un seul tenant et sont obtenues par le pliage d'une seule pièce, qui forme l'enveloppe du corps de chauffe de forme globalement parallélépipédique allongée.According to a preferred embodiment of the in vention the front face, the rear face, the upper face and the lower face of the heating body are in one piece and are obtained by folding in one piece, which forms the envelope of the heating body of overall shape elongated parallelepiped.

Compte tenu de la forme parallélipipédique simple du corps de chauffe il n'est pas nécessaire de recou­vrir celui-ci par un habillage pour le cacher ; seules les commandes d'amené de gaz et l'appareillage auxi­liaire peuvent être regroupés à l'intérieur d'un carter de même profil que celui du corps de chauffe, placé en bout dans son prolongement.Given the simple parallelepiped shape of the heating body, it is not necessary to cover it with a covering to hide it; only the gas supply controls and the auxiliary equipment can be grouped together inside a casing with the same profile as that of the heating body, placed at the end in its extension.

On observera que la conception d'un tel appareil pré­sente l'avantage de réduire notablement le nombre de pièces qui le compose par rapport aux conceptions habituelles ; de même les opérations assemblage sont réduites du fait qu'il n'y a plus de boîte à raccorder au corps de chauffe, ce qui se répercute sur le coût du produit fini. Un autre avantage d'un appareil selon l'invention réside dans un encombrement moindre qu'auparavant pour un même type d'appareil, étant donné l'intégration au corps de chauffe du coupe-tirage antirefouleur. L'encombrement et le poids étant sen­siblement réduits, on conçoit que ces particularités se répercutent favorablement sur le coût de l'embal­lage, du stockage et de l'expédition.It will be observed that the design of such a device has the advantage of significantly reducing the number of parts that compose it compared to usual designs; similarly, the assembly operations are reduced because there is no longer any box to be connected to the heating body, which has an impact on the cost of the finished product. Another advantage of an apparatus according to the invention lies in a smaller footprint than before for the same type of apparatus, given the integration into the heating body of the draft diverter. The size and weight being significantly reduced, it is understandable that these features have a favorable effect on the cost of packaging, storage and shipping.

De plus, compte tenu de la simplicité des pièces et de leur nombre limité, l'investissement en outillage est particulièrement réduit pour la fabrication, cet appareil peu épais trouve plus facilement sa place dans les petites pièces telles que couloirs et vesti­bules.In addition, given the simplicity of the parts and their limited number, the investment in tools is particularly reduced for manufacturing, this thin device more easily finds its place in small parts such as corridors and hallways.

D'autres caractéristiques et avantages de l'invention, ressortiront de la description détaillée qui va suivre à titre d'exemple en faisant référence aux dessins annexés dans lesquels :

  • Figure 1 représente en élévation et en coupe longitu­dinale un appareil selon l'invention vu selon la ligne I-I de la figure 2 ;
  • Figure 2 est une élévation en coupe transversale selon la ligne II-II de la figure 1 ;
  • Figure 3 montre schématiquement le fonctionnement de l'appareil sous l'effet du tirage naturel ;
  • Figure 4 montre schématiquement le fonctionnement de l'antirefouleur ;
  • Figure 5 montre schématiquement le fonctionnement de l'appareil avec le conduit de fumée obturé ;
  • Figure 6 est une vue en perspective de l'appareil vu de face, le corps de chauffe apparent étant prolongé par le carter contenant les commandes d'amenée de gaz ;
  • Figure 7 est une vue en perspective de l'appareil vu de dos.
Other characteristics and advantages of the invention will emerge from the detailed description which will follow by way of example with reference to the appended drawings in which:
  • Figure 1 shows in elevation and in longitudinal section an apparatus according to the invention seen along line II of Figure 2;
  • Figure 2 is an elevation in cross section along the line II-II of Figure 1;
  • Figure 3 schematically shows the operation of the device under the effect of natural draft;
  • Figure 4 schematically shows the operation of the draft diverter;
  • Figure 5 schematically shows the operation of the device with the smoke flue closed;
  • Figure 6 is a perspective view of the device seen from the front, the apparent heating body being extended by the housing containing the gas supply controls;
  • Figure 7 is a perspective view of the device seen from the back.

Suivant une forme d'exécution de l'invention, représentée aux figures, un appareil destiné à être raccordé à un conduit de fumée et fonctionnant avec les combus­tibles gazeux est constitué essentiellement d'un corps de chauffe contenant le ou les brûleurs.According to an embodiment of the invention, shown in the figures, an apparatus intended to be connected to a smoke duct and operating with gaseous fuels consists essentially of a heating body containing the burner or burners.

Le corps de chauffe selon l'invention est constitué d'une enveloppe 1 portant la buse d'évacuation des fumées 10H ou 10V et dont chacune de ses deux extré­mités latérales forme le dispositif de coupe-tirage antirefouleur par la disposition conjuguée des joues 8A, 8B, des déflecteurs 9A, 9B, et de la chicane cen­trale 11.The heating element according to the invention consists of an envelope 1 carrying the smoke evacuation nozzle 10H or 10V and each of its two lateral ends of which forms the draft-proofing device against draft by the combined arrangement of the cheeks 8A, 8B, deflectors 9A, 9B, and the central baffle 11.

L'enveloppe 1 précitée est constituée par une face avant 2, une face arrière 3 portant la buse 10H d'éva­cuation des fumées propre à un raccordement horizontal, une face supérieure 4 portant éventuellement la buse d'évacuation des fumées propre à un raccordement verti­cal 10V, une face inférieure 5 comportant une ouverture longitudinale 6 destinée au passage de l'air comburant, obtenue par l'espace laissé entre les deux plis 7 refermant l'enveloppe.The aforementioned envelope 1 is constituted by a front face 2, a rear face 3 carrying the smoke evacuation nozzle 10H suitable for a horizontal connection, an upper face 4 possibly carrying the smoke evacuation nozzle suitable for a vertical connection 10V, a lower face 5 comprising a longitudinal opening 6 intended for the passage of oxidizing air, obtained by the space left between the two plies 7 closing the envelope.

Les deux extrémités latérales de cette enveloppe 1 ne sont que partiellement fermées en partie haute par une joue 8A d'un côté, 8B de l'autre, et en partie basse par un déflecteur dévoyé 9A d'un côté, 9B de l'autre, ceux-ci pénétrant partiellement à l'intérieur de l'enveloppe 1.The two lateral ends of this envelope 1 are only partially closed in the upper part by a cheek 8A on one side, 8B on the other, and in the lower part by a deflected deflector 9A on one side, 9B on the other , these partially penetrating inside the envelope 1.

A l'intérieur de cette enveloppe 1, en partie haute, une chicane centrale 11 contourne l'ouverture 12 de la buse d'évacuation 10H et se prolonge symétriquement de part et d'autre jusqu'au dessus de l'extrémité des déflecteurs latéraux 9A, 9B ; les pans 13A, 13B inclinés vers le bas, terminant les extrémités de la chicane centrale 11, contribuent à former une sorte de siphon vers chacune des extrémités latérales de l'enveloppe.Inside this envelope 1, in the upper part, a central baffle 11 bypasses the opening 12 of the discharge nozzle 10H and extends symmetrically on either side to the top of the end of the side deflectors 9A, 9B; the sides 13A, 13B inclined downward, terminating the ends of the central baffle 11, contribute to forming a sort of siphon towards each of the lateral ends of the envelope.

Dans la forme de réalisation décrite ci-avant, les déflecteurs latéraux 9A, 9B et la chicane centrale 11 sont rendus solidaires des faces avant 2 et arrière 3 de l'enveloppe 1 ; il en est de même pour les joues 8A, 8B qui de plus sont solidaires de la face supérieure 4.In the embodiment described above, the side deflectors 9A, 9B and the central baffle 11 are made integral with the front 2 and rear 3 faces of the casing 1; the same applies to the cheeks 8A, 8B which, moreover, are integral with the upper face 4.

Le corps de chauffe ainsi constitué porte dans sa partie basse le brüleur 14 et présente une construction symétrique de part et d'autre d'un plan transversal médian.The heating body thus formed carries in its lower part the burner 14 and has a symmetrical construction on either side of a median transverse plane.

Dans un tel corps de chauffe, en fonctionnement normal sous l'effet du tirage naturel (figure 3), les produits de la combustion sont guidés suivant deux parcours symétriques, de part et d'autre d'un plan transversal médian, jusqu'à la buse d'évacuation 10H ou 10V, en passant par les siphons S crées dans les côtés laté­raux. On comprendra aisément que la fonction coupe-­tirage est obtenue par chacune des ouvertures T laissées dans les deux faces latérales, en dessous de chaque siphon S.In such a heating body, in normal operation under the effect of natural draft (Figure 3), the products of combustion are guided along two symmetrical paths, on either side of a median transverse plane, up to the 10H or 10V discharge nozzle, passing through the S siphons created in the lateral sides. It will be readily understood that the draft-cutter function is obtained by each of the openings T left in the two lateral faces, below each siphon S.

Lorsque le corps de chauffe est soumis à un vent de refoulement (figure 4) provenant du conduit de fumée, auquel il est raccordé par la buse d'évacuation 10H ou 10V, ce courant de refoulement R se trouve canalisé symétriquement de part et d'autre de cette buse d'éva­cuation jusqu'aux deux ouvertures latérales T utiles dans la fonction coupe-tirage, puis évacué à travers celles-ci avec les produits de la combustion P qui se trouvent entraînés au passage, à la sortie de chaque siphon, par la vitesse de ce courant de refoulement. L'enceinte contenant le brûleur se trouve alors en légère dépression, évitant ainsi que le fonctionnement du brûleur et la combustion ne soient altérés par ce refoulement.When the heating body is subjected to a discharge wind (FIG. 4) coming from the smoke duct, to which it is connected by the discharge nozzle 10H or 10V, this discharge current R is symmetrically channeled from side to side. other from this evacuation nozzle to the two lateral openings T useful in the draft-cutting function, then evacuated through them with the combustion products P which are entrained in passing, at the outlet of each siphon, by the speed of this discharge current. The chamber containing the burner is then in slight depression, thus preventing the operation of the burner and combustion from being affected by this discharge.

A noter également que si le conduit de fumée se trouve obturé (figure 5), l'évacuation des produits de la combustion est assurée par ces mêmes ouvertures latérales T dans de bonnes conditions.Note also that if the smoke duct is blocked (Figure 5), the evacuation of the combustion products is ensured by these same side openings T under good conditions.

Un corps de chauffe peut recevoir un habillage adapté, dont la dimension en profondeur sera évidemment réduite, puisque le dispositif de coupe-tirage antirefouleur se trouve intégré dans l'épaisseur du corps de chauffe.A heating body can receive a suitable covering, the depth dimension of which will obviously be reduced, since the draft-reducing antireflection device is integrated into the thickness of the heating body.

Selon une variante (figures 6 et 7) le corps de chauffe n'est pas nécessairement recouvert par un habillage. En effet, l'enveloppe 1 formant principalement le corps de chauffe 15 de forme parallélépipédique peut être réalisée par exemple en tôle nervurée et prolongée par un carter 16 de même profil contenant les organes de commande et l'appareillage auxiliaire. Dans cette forme de réalisation esthétique l'invention accentue fortement son caractère de fabrication économique.According to a variant (Figures 6 and 7) the heating body is not necessarily covered by a covering. In fact, the casing 1 mainly forming the heating body 15 of parallelepiped shape can be produced for example from ribbed sheet metal and extended by a casing 16 of the same profile containing the control members and the auxiliary apparatus. In this aesthetic embodiment, the invention strongly accentuates its character of economic manufacture.

Bien entendu l'invention n'est pas limitée au mode de construction défini ci-avant et dont les pièces sont généralement obtenues par pliage et assemblées par soudure ou rivetage. Le même principe peut se réaliser par plus ou moins de pièces, soit embouties, soit de fonderie ou autre, et faire l'objet de modifi­cations sans pour autant sortir du cadre de la présente invention.Of course, the invention is not limited to the construction method defined above and the parts of which are generally obtained by folding and assembled by welding or riveting. The same principle can be achieved by more or less parts, either stamped, foundry or other, and be subject to modifications without departing from the scope of the present invention.

Claims (6)

1. Appareil de chauffage indépendant, fonctionnant avec les combustibles gazeux et destiné à être raccordé par une buse d'évacuation à un conduit de fumée, du genre comprenant un corps de chauffe équipé d'un brûleur, d'un dispositif de coupe-tirage antirefouleur, de moyens de commande d'amenée de gaz et d'un appareillage auxiliaire, caractérisé en ce que la buse d'évacuation (10H) ou (10V) est directement associée à une des parois principalement active d'échange thermique d'un corps de chauffe monobloc, et en ce que le dispositif de coupe-tirage antirefouleur comprend deux siphons (S) placés symétriquement de part et d'autre de la buse (10H) ou (10V) en ayant chacun un passage au-dessus du niveau de l'axe horizontal de la buse (10H) ledit axe étant situé dans le plan transversal médian du corps de chauffe et chacun desdits siphons se trouvant situé sensiblement à l'aplomb d'une ouverture (T) ménagée dans le côté latéral en correspondance et vers chacune des deux extrémités du brûleur (14).1. Independent heating appliance, operating with gaseous fuels and intended to be connected by an exhaust nozzle to a smoke duct, of the type comprising a heating body equipped with a burner, with a draft-cutting device. backflow preventer, gas supply control means and an auxiliary apparatus, characterized in that the discharge nozzle (10H) or (10V) is directly associated with one of the mainly active heat exchange walls of a monobloc heating body, and in that the draft diverter device includes two siphons (S) placed symmetrically on either side of the nozzle (10H) or (10V) each having a passage above the level the horizontal axis of the nozzle (10H) said axis being located in the median transverse plane of the heating body and each of said siphons being located substantially perpendicular to an opening (T) formed in the lateral side in correspondence and towards each of the two ends of the burner ( 14). 2. Appareil selon la revendication 1, caractérisé en ce que le corps de chauffe comporte au-dessus du brûleur et pratiquement sur toute sa longueur une chicane (11) adaptée à contourner dans sa zone centrale l'ouverture (12) de la buse d'évacuation horizontale (10H) et à se prolonger symétriquement de part et d'autre de cette zone en ayant des pans inclinés termi­naux (13A, 13B), qui surplombent des déflecteurs laté­raux (9A, 9B) de sorte à participer ainsi à la consti­tution des siphons (S).2. Apparatus according to claim 1, characterized in that the heating body comprises above the burner and practically over its entire length a baffle (11) adapted to bypass in its central area the opening (12) of the nozzle d 'horizontal evacuation (10H) and to extend symmetrically on both sides of this area by having end inclined faces (13A, 13B), which overhang side deflectors (9A, 9B) so as to participate in the constitution siphons (S). 3. Appareil selon l'une quelconque des revendications 1 et 2, caractérisé en ce que la face avant (2), la face arrière (3), la face supérieure (4) et la face inférieure (5) sont d'un seul tenant et sont obtenues par le pliage d'une seule pièce qui forme l'enveloppe (1) du corps de chauffe de forme globalement parallé­lépipédique allongée.3. Apparatus according to any one of claims 1 and 2, characterized in that the front face (2), the rear face (3), the upper face (4) and the lower face (5) are in one piece and are obtained by folding a single piece which forms the envelope (1) of the shaped heating body generally elongated parallelepiped. 4. Appareil selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la buse d'évacuation des fumées est, au choix, installée soit en départ horizontal (10H) directement sur la face arrière (3), soit en départ vertical (10V) directement sur la face supérieure (4) du corps de chauffe.4. Apparatus according to any one of claims 1 to 3, characterized in that the smoke evacuation nozzle is, as desired, installed either in horizontal start (10H) directly on the rear face (3), or in start vertical (10V) directly on the upper face (4) of the heating body. 5. Appareil selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le corps dê chauffe (15) est prolongé latéralement d'un côté par un carter (16) de même profil que celui-ci et contenant les organes de commande d'amenée de gaz et d'appareillage auxiliaire.5. Apparatus according to any one of claims 1 to 4, characterized in that the heater body (15) is extended laterally on one side by a housing (16) of the same profile as the latter and containing the organs of control of gas supply and auxiliary equipment. 6. Appareil selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la majorité des pièces qui le compose sont réalisées en tôle pliée.6. Apparatus according to any one of claims 1 to 5, characterized in that the majority of the parts which compose it are made of folded sheet.
EP86201311A 1985-02-08 1986-07-24 Heating apparatus for gaseous fuels and provided for being connected with a waste-gas duct Withdrawn EP0253926A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8501793A FR2577306A1 (en) 1985-02-08 1985-02-08 Heating apparatus operating with gaseous fuels and intended to be connected to a smoke duct
EP86201311A EP0253926A1 (en) 1986-07-24 1986-07-24 Heating apparatus for gaseous fuels and provided for being connected with a waste-gas duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86201311A EP0253926A1 (en) 1986-07-24 1986-07-24 Heating apparatus for gaseous fuels and provided for being connected with a waste-gas duct

Publications (1)

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EP0253926A1 true EP0253926A1 (en) 1988-01-27

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EP86201311A Withdrawn EP0253926A1 (en) 1985-02-08 1986-07-24 Heating apparatus for gaseous fuels and provided for being connected with a waste-gas duct

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2507594A (en) * 2012-11-06 2014-05-07 Gazco Ltd Flush-fitting gas heating appliance

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE565348C (en) * 1931-08-18 1932-11-30 Bing Werke Vorm Gebr Bing A G Gas-heated liquid heater with backflow protection
DE580883C (en) * 1933-07-18 Bruno Ehrlich Recoil protection for gas-heated liquid heaters
FR868666A (en) * 1939-10-23 1942-01-12 Eisenwerk G Meurer A G radiator element for gas fires with return protection
GB967989A (en) * 1961-12-15 1964-08-26 Glud & Marstrands Fabriker As A gas radiator
US3536060A (en) * 1968-06-07 1970-10-27 Raypak Inc Draft hood
FR2577306A1 (en) * 1985-02-08 1986-08-14 Herve Michel Heating apparatus operating with gaseous fuels and intended to be connected to a smoke duct

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE580883C (en) * 1933-07-18 Bruno Ehrlich Recoil protection for gas-heated liquid heaters
DE565348C (en) * 1931-08-18 1932-11-30 Bing Werke Vorm Gebr Bing A G Gas-heated liquid heater with backflow protection
FR868666A (en) * 1939-10-23 1942-01-12 Eisenwerk G Meurer A G radiator element for gas fires with return protection
GB967989A (en) * 1961-12-15 1964-08-26 Glud & Marstrands Fabriker As A gas radiator
US3536060A (en) * 1968-06-07 1970-10-27 Raypak Inc Draft hood
FR2577306A1 (en) * 1985-02-08 1986-08-14 Herve Michel Heating apparatus operating with gaseous fuels and intended to be connected to a smoke duct

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2507594A (en) * 2012-11-06 2014-05-07 Gazco Ltd Flush-fitting gas heating appliance
GB2507594B (en) * 2012-11-06 2015-07-22 Gazco Ltd An improved flush-fitting gas heating appliance

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