EP1396682A1 - Dismountable smoke box with automatic check valve and with afterburning chamber for a heating apparatus - Google Patents

Dismountable smoke box with automatic check valve and with afterburning chamber for a heating apparatus Download PDF

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Publication number
EP1396682A1
EP1396682A1 EP03360096A EP03360096A EP1396682A1 EP 1396682 A1 EP1396682 A1 EP 1396682A1 EP 03360096 A EP03360096 A EP 03360096A EP 03360096 A EP03360096 A EP 03360096A EP 1396682 A1 EP1396682 A1 EP 1396682A1
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EP
European Patent Office
Prior art keywords
smoke box
box according
chamber
nozzle
afterburner
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Granted
Application number
EP03360096A
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German (de)
French (fr)
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EP1396682B1 (en
Inventor
Robert Richard
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Fondis SA
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Fondis SA
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/185—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion
    • F24B1/189—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by air-handling means, i.e. of combustion-air, heated-air, or flue-gases, e.g. draught control dampers 
    • F24B1/1895—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by air-handling means, i.e. of combustion-air, heated-air, or flue-gases, e.g. draught control dampers  flue-gas control dampers

Definitions

  • the present invention relates to a box removable flue gas with integrated automatic flap which has an afterburner.
  • This box smoke is intended for space heaters solid fuel.
  • the fire rate When operating a solid fuel heating, the fire rate must be optimal to avoid the leakage of a part significant calories in the evacuation circuit combustion gases and fumes.
  • the valve generally consists of a flap pivoting around an axis whose ends relate to two landing surfaces fixed to the body of the discharge nozzle making the whole hardly removable.
  • the slowdown circuit of fumes develops dissociated from the part central exhaust nozzle allowing neither a easy access for sweeping, disassembly and quick removal for cleaning and possibly replacement.
  • the smoke box described consists of three parts assembled together by simple assembly manual: a nozzle receiving the exhaust duct, a valve holder part which engages and is mounted by a quick assembly method in a room nozzle receiving bottom and which delimits with this an annular recovery chamber for heat, and a flap mounted articulated to pivot on the valve holder part which automatically switches to open position when the door is opened.
  • the demountability is total. Indeed, there are only three pieces that go up quickly one inside the other without any tool to constitute the smoke box.
  • This constitution allows the use of one-piece cast iron parts providing strength, longevity and thermal inertia. We also benefit from a compact unit in which the discharge forms a body with the smoke box.
  • the present invention aims to provide an improvement to this type of smoke box, making it even more advantageous.
  • Fuel heaters solid have a hearth in which the fuel solid is piled up and burned. Because of this piling, combustion is generally far from being complete and the smoke escaping from the hearth contains still a significant amount of unburnt.
  • unburnt products mainly contain carbon monoxide and volatile compounds from distillation of solid fuels, such as the wood, brought to high temperature inside the home. They escape from the hearth in the smoke of combustion, pass through the smoke box and are released into the atmosphere. They are therefore particularly polluting.
  • the improved smoke box of this invention allows while retaining the advantages and the characteristics mentioned above, to limit pollutant releases to the atmosphere and increase the efficiency of the heater by recovering maximum calories.
  • the improved smoke box has an afterburner chamber in which unburnt material during primary combustion at inside the hearth, are burned in turn. Overall, the combustion of solid fuel is thus more complete and pollutant releases are greatly reduced.
  • the calories produced during the post-combustion are mostly recovered, thereby increasing the efficiency of the device heater.
  • the afterburner can be shaped and arranged in the heat recovery chamber, defined between walls of the nozzle receiving chamber and the flap holder part of the smoke box such as previously described.
  • the post-combustion chamber due to its central position in the upper volume above the upper wall of the fireplace, evenly radiates the heat, which allows optimal diffusion of the heat recovered.
  • the smoke box according to the invention is intended to equip any space heating appliance solid fuel, without restricting its scope. She was more particularly designed for a closed fireplace.
  • a hearth 1 closed chimney in the form of a closed box 2 by a glass door 3.
  • This box 2 defines a combustion chamber 4 constituting the hearth in which must burn a wood fire fed through a front opening 5 closed by the door 3.
  • the closed hearth is delimited by side walls 6 and 7, a bottom 8 and an upper wall 9.
  • a cover wall 10 closes the box 2 upwards leaving between it and the top wall 9 from the foyer a recovery chamber 11 open towards the front by a front opening in the form, by example, of several front mouths such as 12 exhausting the flow of hot air into the room to be heated.
  • the improved smoke box according to the invention comes to be mounted in the central position of the part top of closed hearth 1.
  • a nozzle 13 consisting of a single piece of shape general cylindrical tubular presenting at its upper end a tubular cylindrical section 14 in which is fitted by fitting a smoke evacuation duct 15.
  • the body of the nozzle 13 ends at its other end by a cylindrical part 16 of larger diameter delimiting a reception chamber 17.
  • the two end parts of the nozzle are connected by a central shoulder 18.
  • valve member 19 of general shape cylindrical. She went up to this bedroom reception 17 by a rapid assembly means of the type for example with quick lock says quarter turn or bayonet or any other equivalent means quick assembly.
  • This valve member 19 has a body tubular of generally cylindrical shape, the edge of which lower is shaped as a slowdown ring 20 and holding extending in peripheral projection towards outside.
  • This crown 20 has a structure alternating full parts 21 and empty parts 22, for example in slots followed by notches, among which are receptive slots 25 and introductory notches 26 of larger dimension. These are intended to cooperate, in a support and blocking goal, with support legs 27 shaped in the lower edge 29 in a crown of the nozzle 13 in the form of transverse tabs is continuing inwardly projecting.
  • the valve member 19 continues towards the high by two landing notches such as 30 diametrically opposite and with rounded bottom, shaped recessed in the upper peripheral edge 31 of the valve holder part 19, to serve as a bearing for ends 32 of the pivot axis 33 of a valve 34.
  • valve-holder part 19 Between these notches is conformed in this valve-holder part 19 a semi-circular shoulder 36 against which the valve 34 abuts closing.
  • the valve 34 is a single piece of cast iron disc-shaped in two half-parts 37 and 38 of semicircular contours and of unequal dimensions, of which part 37 is of larger diameter than the other 38 so as to introduce an asymmetry dimensional and mass and thus create by gravity an automatic call back down toggle the valve 34 by its heavier half-part 37.
  • the valve 34 is mounted articulated by a pivot joint 39 ( Figures 3 and 4) pivotally actuated by the hook end 40 a push rod 41 which passes through its other end the top front of the device for abut against the upper cross member of the door glazed when it is closed or against a projection 42 provided opposite for this purpose.
  • annular recovery chamber 43 in which there is a slowing down of the fumes and an exchange heat. It communicates from below with the hearth by the crenellated crown 20 and from above with the exhaust duct 15 through an interval exhaust 44 existing between the shoulder 18 of the nozzle 13 and the upper edge of the valve member 19.
  • this annular chamber of recovery can be shaped and arranged in one afterburner 46 for materials unburnt that pass through this room within combustion fumes.
  • the burning unburnt fires automatically in the afterburner and generates a significant amount of calories that can be recovered.
  • the afterburner is then self-sustaining, as long as there is material left to burn and sufficient oxygen, thanks to the heat that it produces.
  • Solid fuel combustion started inside the fireplace can end in the afterburner where unburnt compounds pollutants are degraded in turn.
  • the rejects pollutants in the atmosphere are thus considerably reduced.
  • the system according to the invention comprises a supply air ramp 47 preferably located near entrance 48 of the afterburner located between the edges nozzle 13 and the valve holder 19. This supply air ramp provides fresh air at temperature appropriate.
  • the supply air ramp (47) can also be placed advantageously in the box smoke, that is to say in the described structure located in the upper part of the foyer.
  • tubing 49 part of which is shaped like a crown 50, the diameter of which preferably corresponds substantially to that of the entrance to the annular chamber of afterburner 46 or is slightly higher than this.
  • Tubing 49 continues with part of connection 51 opening to the outside of the appliance of heating.
  • the crown portion 50 of the tubing has air distribution orifices 52, preferably evenly distributed over its entire length and oriented for example next to entry 48 of the afterburner. These holes could be oriented differently, in particular towards the exit of the afterburner.
  • the supply air ramp 47 provides the entrance to the afterburner room the supplement of oxygen necessary for the combustion of unburnt, under the form of air taken from the outside of the heating and distributed through orifices 52.
  • orifices 52 can advantageously be shaped so as to play the role of nozzles.
  • the air is blown at the entrance to the post-combustion by natural current or by flow forced using for example a turbine or a fan.
  • the device includes a means any heating of the air distributed by the ramp 47 or a means of direct heating of the afterburner 46, including for example one or several electrical resistances.
  • the air diffused by the ramp 47 is heated to a sufficient temperature.
  • the part of connection 51 of tubing 49 pass preferably inside the chamber combustion 4 of hearth 2 of the heater before ending up in the smoke box.
  • the device according to the invention can also include in addition an additional means of heating, complementing the calorific intake by source of fire and primary combustion taking place in the combustion chamber 4, so reach a level of heat sufficient to generate afterburning.
  • Such a heating means Annex may be required when the heat of the fireplace is insufficient, especially when starting the primary combustion or when the fire decreases.
  • a system regulation automatically controlling the start-up and the extinction of the additional heating means comprising for example a temperature sensor placed in or upstream of the afterburner in order to detect a possible absence of afterburner.
  • the combustion fumes containing the unburnt materials pass near the crown 50 from the supply air manifold 47 and mix with the air hot and rich in oxygen blown through orifices 52.
  • the fumes then enter the chamber afterburner 46 through entrance 48 through empty parts 22 of the crown 20 and undergo a afterburner.
  • the afterburner 46 Due to its angled shape, the afterburner 46 causes a slowdown in circulation of fumes before their evacuation through the exhaust duct 15. This slowing down allows the afterburner to have time to come true completely within the afterburner. In addition, it makes possible a heat exchange maximum to recover the calories produced by afterburning.
  • the shoulder 18 of the nozzle 13 is extended on its face lower by a circular rim 53 extending towards the bottom, which thus forms in the escape gap 44 a chicane that the fumes are forced to bypass before you can take the conduit evacuation 15.
  • fins 54 can advantageously be provided on the outside of the cylindrical part lower 16 of the nozzle 13. Preferably, these fins 54 are arranged radially, at intervals regular and substantially vertical. Of such fins 54 have been shown in the figures 3 and 4.
  • This modification is recommended for security reasons, in order to prevent the end of the exhaust duct 15 is deformed or deteriorated by flames or high temperatures prevailing in the afterburner.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Solid-Fuel Combustion (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Baking, Grill, Roasting (AREA)
  • Catching Or Destruction (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The detachable smoke box for a solid fuel heater has three sections which are manually assembled. It has a nozzle (13) to receive the chimney (15) and a flap carrier (19) which has quick fixing mounts into a chamber in the nozzle. The flap and chamber define a post combustion volume (46). There is a blown air ramp (47) adjacent to the inlet of the post combustion chamber.

Description

La présente invention se rapporte à une boíte à fumées démontable à clapet automatique intégré qui comporte une chambre de postcombustion. Cette boíte à fumées est destinée aux appareils de chauffage à combustible solide.The present invention relates to a box removable flue gas with integrated automatic flap which has an afterburner. This box smoke is intended for space heaters solid fuel.

Lors du fonctionnement d'un appareil de chauffage à combustible solide, l'allure du feu doit être optimale pour éviter la fuite d'une partie importante des calories dans le circuit d'évacuation des gaz et fumées de combustion.When operating a solid fuel heating, the fire rate must be optimal to avoid the leakage of a part significant calories in the evacuation circuit combustion gases and fumes.

De plus, pour augmenter le rendement calorifique de l'appareil de chauffage, on ralentit les gaz et fumées de combustion par diverses chicanes en partie supérieure du foyer permettant aussi d'allonger leur trajet de manière à récupérer des calories qui sinon seraient parties à l'atmosphère.In addition, to increase the yield heat from the heater, it slows down the gases and smoke of combustion by various baffles in upper part of the hearth allowing also to lengthen their way in order to recover calories which otherwise would be gone to the atmosphere.

Par ailleurs, pour éviter la sortie du flux aéraulique de combustion et éventuellement des flammes par la porte lorsque celle-ci est ouverte pour le réapprovisionnement en combustible, il existe des clapets d'évacuation directe qui obturent la section du conduit d'évacuation pendant le régime permanent et le libèrent en basculant automatiquement lors de l'ouverture de la porte afin de permettre au flux aéraulique de combustion de s'évacuer totalement par le conduit et non par la porte.Furthermore, to avoid the exit from the flow combustion air and possibly flames by the door when it is open for the refueling, there are direct discharge valves which close the section of the exhaust pipe during steady state and release by switching automatically when opening the door to allow the flow combustion air to be evacuated completely by the led and not through the door.

Le clapet est en général constitué par un volet pivotant autour d'un axe dont les extrémités portent sur deux surfaces palières fixées sur le corps de la buse d'évacuation rendant l'ensemble difficilement démontable.The valve generally consists of a flap pivoting around an axis whose ends relate to two landing surfaces fixed to the body of the discharge nozzle making the whole hardly removable.

De plus, le circuit de ralentissement des fumées se développe de façon dissociée de la partie centrale de la buse d'évacuation ne permettant ni un accès facile pour le ramonage, ni un démontage et une dépose rapides pour le nettoyage et éventuellement le remplacement. In addition, the slowdown circuit of fumes develops dissociated from the part central exhaust nozzle allowing neither a easy access for sweeping, disassembly and quick removal for cleaning and possibly replacement.

Les présents inventeurs ont déjà imaginé une boíte à fumée particulièrement avantageuse destinée à un foyer fermé de cheminée ou à un poêle ou tout autre appareil de chauffage à combustible solide, qui remédie à ces divers inconvénients. Cette boite à fumées démontable, à clapet automatique et à échangeur de chaleur intégré, a été protégée par le dépôt d'une demande de brevet en France sous le numéro 01 14122.The present inventors have already imagined a particularly advantageous smoke box intended for a closed fireplace hearth or stove or any other solid fuel heater, which remedies to these various disadvantages. This smoke box removable, with automatic valve and heat exchanger integrated heat, was protected by the deposit of a patent application in France under number 01 14122.

La boíte à fumées décrite se compose de trois pièces assemblées entre elles par simple montage manuel : une buse recevant le conduit d'évacuation, une pièce porte-clapet qui vient s'engager et se monter par un moyen d'assemblage rapide dans une chambre inférieure de réception de la buse et qui délimite avec celle-ci une chambre annulaire de récupération de chaleur, et un clapet monté articulé à pivotement sur la pièce porte-clapet qui bascule automatiquement en position d'ouverture à l'ouverture de la porte.The smoke box described consists of three parts assembled together by simple assembly manual: a nozzle receiving the exhaust duct, a valve holder part which engages and is mounted by a quick assembly method in a room nozzle receiving bottom and which delimits with this an annular recovery chamber for heat, and a flap mounted articulated to pivot on the valve holder part which automatically switches to open position when the door is opened.

Le caractère démontable est total. En effet, il ne subsiste que trois pièces se montant rapidement l'une dans l'autre sans aucun outil pour constituer la boíte à fumées.The demountability is total. Indeed, there are only three pieces that go up quickly one inside the other without any tool to constitute the smoke box.

Le montage et le démontage des pièces sont ainsi rapides et faciles aussi bien en usine lors de la fabrication que lors des nettoyages et ramonages périodiques. De plus, cette simplification constructive permet de réduire le coût de la main-d'εuvre et le prix de revient.The assembly and disassembly of the parts are thus quick and easy both in the factory when manufacturing only during cleaning and sweeping periodicals. In addition, this constructive simplification reduces the cost of labor and the price returns.

Cette constitution permet d'utiliser des pièces monobloc en fonte apportant solidité, longévité et inertie thermique. On bénéficie de plus, d'un ensemble compact dans lequel l'évacuation fait corps avec la boíte à fumées.This constitution allows the use of one-piece cast iron parts providing strength, longevity and thermal inertia. We also benefit from a compact unit in which the discharge forms a body with the smoke box.

La présente invention a pour but d'apporter un perfectionnement à ce type de boítes à fumées, les rendant encore plus avantageuses.The present invention aims to provide an improvement to this type of smoke box, making it even more advantageous.

Les appareils de chauffage à combustible solide comportent un foyer dans lequel le combustible solide est entassé et brûlé. Du fait de cet entassement, la combustion est généralement loin d'être complète et les fumées s'échappant du foyer contiennent encore une quantité non négligeable d'imbrûlés.Fuel heaters solid have a hearth in which the fuel solid is piled up and burned. Because of this piling, combustion is generally far from being complete and the smoke escaping from the hearth contains still a significant amount of unburnt.

Ces imbrûlés renferment principalement de l'oxyde de carbone et des composés volatils provenant de la distillation des combustibles solides, tels que le bois, portés à haute température à l'intérieur du foyer. Ils s'échappent du foyer au sein des fumées de combustion, traversent la boíte à fumées et sont libérés dans l'atmosphère. Ils sont de ce fait particulièrement polluants.These unburnt products mainly contain carbon monoxide and volatile compounds from distillation of solid fuels, such as the wood, brought to high temperature inside the home. They escape from the hearth in the smoke of combustion, pass through the smoke box and are released into the atmosphere. They are therefore particularly polluting.

En outre, ces matières imbrûlées représentent une importante quantité d'énergie potentiellement récupérable qui est perdue dans l'atmosphère sans que les calories puissent être prélevées pour le chauffage. Le rendement de l'appareil de chauffage s'en trouve particulièrement diminué.In addition, these unburnt materials represent a significant amount of energy potentially recoverable which is lost in the atmosphere without calories can be taken for heating. The efficiency of the heater is found particularly decreased.

La boíte à fumée améliorée de la présente invention permet, tout en conservant les avantages et les caractéristiques précédemment évoqués, de limiter les rejets polluants dans l'atmosphère et d'augmenter le rendement de l'appareil de chauffage en récupérant un maximum de calories.The improved smoke box of this invention allows while retaining the advantages and the characteristics mentioned above, to limit pollutant releases to the atmosphere and increase the efficiency of the heater by recovering maximum calories.

Pour cela, la boíte à fumée améliorée comporte une chambre de postcombustion dans laquelle les matières imbrûlées lors de la combustion primaire à l'intérieur du foyer, sont brûlées à leur tour. Globalement, la combustion du combustible solide est ainsi plus complète et les rejets polluants sont fortement diminués.For this, the improved smoke box has an afterburner chamber in which unburnt material during primary combustion at inside the hearth, are burned in turn. Overall, the combustion of solid fuel is thus more complete and pollutant releases are greatly reduced.

Les calories produites au cours de la postcombustion sont majoritairement récupérées, augmentant ainsi le rendement de l'appareil de chauffage.The calories produced during the post-combustion are mostly recovered, thereby increasing the efficiency of the device heater.

De façon préférentielle, la chambre de postcombustion peut être conformée et aménagée dans la chambre de récupération de chaleur, définie entre les parois de la chambre de réception de la buse et de la pièce porte-clapet de la boíte à fumée telle que décrite précédemment.Preferably, the afterburner can be shaped and arranged in the heat recovery chamber, defined between walls of the nozzle receiving chamber and the flap holder part of the smoke box such as previously described.

La chambre de postcombustion, de par sa position centrale dans le volume supérieur au-dessus de la paroi supérieure du foyer, rayonne uniformément la chaleur, ce qui permet une diffusion optimale de la chaleur récupérée.The post-combustion chamber, due to its central position in the upper volume above the upper wall of the fireplace, evenly radiates the heat, which allows optimal diffusion of the heat recovered.

La structure et les formes particulièrement inventives de la boíte à fumées revendiquée antérieurement peuvent être conservées. Seules de très légères modifications sont nécessaires pour réaliser ce perfectionnement.Structure and forms particularly inventories of the claimed smoke box previously can be kept. Only very slight modifications are necessary to achieve this development.

Ses avantages, notamment son caractère entièrement et facilement démontable, la réduction de son coût de fabrication, la présence d'un clapet automatique et d'un échangeur de chaleur intégré, peuvent également être conservés dans la boíte à fumée améliorée selon la présente invention.Its advantages, in particular its character fully and easily removable, the reduction of its manufacturing cost, the presence of a valve automatic and an integrated heat exchanger, can also be stored in the smoke box improved according to the present invention.

L'invention sera bien comprise avec d'autres caractéristiques et avantages qui apparaítront dans la description qui suit, donnée à titre d'exemple et accompagnée des dessins dans lesquels :

  • la figure 1 est une vue schématique en perspective montrant un foyer fermé équipé de la boíte à fumées selon l'invention ;
  • la figure 2 est une vue en perspective de la boíte à fumées à l'état dissocié dans laquelle les différentes pièces sont décalées verticalement ;
  • la figure 3 est une vue en coupe longitudinale de l'ensemble de la boíte à fumées améliorée selon l'invention ;
  • la figure 4 est une vue en coupe longitudinale, similaire à celle de la figure 3, d'une autre variante de la boíte à fumées améliorée selon l'invention.
The invention will be better understood with other characteristics and advantages which will appear in the description which follows, given by way of example and accompanied by the drawings in which:
  • Figure 1 is a schematic perspective view showing a closed hearth equipped with the smoke box according to the invention;
  • Figure 2 is a perspective view of the smoke box in the dissociated state in which the different parts are offset vertically;
  • Figure 3 is a longitudinal sectional view of the assembly of the improved smoke box according to the invention;
  • Figure 4 is a longitudinal sectional view, similar to that of Figure 3, of another variant of the improved smoke box according to the invention.

La boíte à fumées selon l'invention est destinée à équiper tout appareil de chauffage à combustible solide, sans pour autant restreindre son champ d'application. Elle a été plus particulièrement étudiée pour un foyer fermé de cheminée.The smoke box according to the invention is intended to equip any space heating appliance solid fuel, without restricting its scope. She was more particularly designed for a closed fireplace.

On décrira maintenant l'invention en référence aux figures en prenant comme exemple un foyer 1 fermé de cheminée sous la forme d'une boíte 2 fermée par une porte vitrée 3. Cette boíte 2 délimite une chambre de combustion 4 constituant le foyer dans lequel doit brûler un feu de bois alimenté à travers une ouverture frontale 5 obturée par la porte 3. Le foyer fermé est délimité par des parois latérales 6 et 7, un fond 8 et une paroi supérieure 9.The invention will now be described in reference to the figures taking as an example a hearth 1 closed chimney in the form of a closed box 2 by a glass door 3. This box 2 defines a combustion chamber 4 constituting the hearth in which must burn a wood fire fed through a front opening 5 closed by the door 3. The closed hearth is delimited by side walls 6 and 7, a bottom 8 and an upper wall 9.

Une paroi de couverture 10 ferme la boíte 2 vers le haut laissant entre elle et la paroi supérieure 9 du foyer une chambre de récupération 11 ouverte vers l'avant par une ouverture frontale sous la forme, par exemple, de plusieurs bouches frontales telles que 12 évacuant le flux d'air chaud dans la pièce à chauffer.A cover wall 10 closes the box 2 upwards leaving between it and the top wall 9 from the foyer a recovery chamber 11 open towards the front by a front opening in the form, by example, of several front mouths such as 12 exhausting the flow of hot air into the room to be heated.

La boíte à fumées améliorée selon l'invention vient se monter en position centrale de la partie supérieure du foyer fermé 1.The improved smoke box according to the invention comes to be mounted in the central position of the part top of closed hearth 1.

Comme la boíte à fumées divulguée dans la demande de brevet antérieure, elle se compose d'une buse 13 constituée d'une pièce monobloc de forme générale tubulaire cylindrique présentant à son extrémité supérieure un tronçon cylindrique tubulaire 14 dans lequel vient se monter par emmanchement un conduit 15 d'évacuation des fumées.Like the smoke box disclosed in the earlier patent application, it consists of a nozzle 13 consisting of a single piece of shape general cylindrical tubular presenting at its upper end a tubular cylindrical section 14 in which is fitted by fitting a smoke evacuation duct 15.

Le corps de la buse 13 se termine à son autre extrémité par une partie cylindrique 16 de plus grand diamètre délimitant une chambre de réception 17. Les deux parties d'extrémité de la buse sont raccordées par un épaulement central 18.The body of the nozzle 13 ends at its other end by a cylindrical part 16 of larger diameter delimiting a reception chamber 17. The two end parts of the nozzle are connected by a central shoulder 18.

Dans la chambre de réception 17 vient se monter une pièce porte-clapet 19 de forme générale cylindrique. Elle est montée dans cette chambre de réception 17 par un moyen d'assemblage rapide du type par exemple à verrouillage rapide dit quart de tour ou à baïonnette ou tout autre moyen équivalent d'assemblage rapide.In the reception room 17 comes mount a valve member 19 of general shape cylindrical. She went up to this bedroom reception 17 by a rapid assembly means of the type for example with quick lock says quarter turn or bayonet or any other equivalent means quick assembly.

Cette pièce porte-clapet 19 présente un corps tubulaire de forme générale cylindrique, dont le bord inférieur est conformé en couronne 20 de ralentissement et de maintien s'étendant en saillie périphérique vers l'extérieur.This valve member 19 has a body tubular of generally cylindrical shape, the edge of which lower is shaped as a slowdown ring 20 and holding extending in peripheral projection towards outside.

Cette couronne 20 présente une structure alternée de parties pleines 21 et de parties vides 22, par exemple en créneaux suivis d'encoches, parmi lesquelles se trouvent des créneaux récepteurs 25 et des encoches d'introduction 26 de plus grande dimension. Ces derniers sont destinés à coopérer, dans un but d'appui et de blocage, avec des pattes-supports 27 conformées dans le bord inférieur 29 en couronne de la buse 13 sous forme de taquets transversaux se poursuivant en saillie vers l'intérieur.This crown 20 has a structure alternating full parts 21 and empty parts 22, for example in slots followed by notches, among which are receptive slots 25 and introductory notches 26 of larger dimension. These are intended to cooperate, in a support and blocking goal, with support legs 27 shaped in the lower edge 29 in a crown of the nozzle 13 in the form of transverse tabs is continuing inwardly projecting.

La pièce porte-clapet 19 se poursuit vers le haut par deux encoches palières telles que 30 diamétralement opposées et à fond arrondi, conformées en retrait dans le bord périphérique supérieur 31 de la pièce porte-clapet 19, pour servir de portée aux extrémités 32 de l'axe de pivotement 33 d'un clapet 34.The valve member 19 continues towards the high by two landing notches such as 30 diametrically opposite and with rounded bottom, shaped recessed in the upper peripheral edge 31 of the valve holder part 19, to serve as a bearing for ends 32 of the pivot axis 33 of a valve 34.

Entre ces encoches se trouve conformé dans cette pièce porte-clapet 19 un épaulement 36 semi-circulaire contre lequel le clapet 34 vient en butée de fermeture.Between these notches is conformed in this valve-holder part 19 a semi-circular shoulder 36 against which the valve 34 abuts closing.

Le clapet 34 est une pièce monobloc en fonte en forme de disque en deux demi-parties 37 et 38 de contours semi-circulaires et de dimensions inégales, dont une partie 37 est de plus grand diamètre que l'autre 38 de manière à introduire une dissymétrie dimensionnelle et de masse et créer ainsi par gravité un rappel automatique vers le bas faisant basculer le clapet 34 par sa demi-partie 37 la plus lourde.The valve 34 is a single piece of cast iron disc-shaped in two half-parts 37 and 38 of semicircular contours and of unequal dimensions, of which part 37 is of larger diameter than the other 38 so as to introduce an asymmetry dimensional and mass and thus create by gravity an automatic call back down toggle the valve 34 by its heavier half-part 37.

Le clapet 34 est monté articulé par une articulation de pivotement 39 (figures 3 et 4) actionnée en pivotement par l'extrémité en crochet 40 d'une tige de poussée 41 qui traverse par son autre extrémité la face avant supérieure de l'appareil pour venir buter contre la traverse supérieure de la porte vitrée lorsque celle-ci est fermée ou contre une saillie 42 prévue en regard à cet effet.The valve 34 is mounted articulated by a pivot joint 39 (Figures 3 and 4) pivotally actuated by the hook end 40 a push rod 41 which passes through its other end the top front of the device for abut against the upper cross member of the door glazed when it is closed or against a projection 42 provided opposite for this purpose.

Tant que la porte est fermée, le contact mécanique maintient la tige de poussée 41 et donc le clapet 34 à l'état fermé. Lorsque la porte s'ouvre, la tige de poussée 41 est libérée de sa contrainte de poussée et le clapet 34 est entraíné en basculement vers le bas par gravité, l'amenant en position totalement ouverte. Cette position permet de limiter fortement le risque de retour de flammes venant s'échapper par la porte avant du foyer.As long as the door is closed, the contact mechanical maintains the push rod 41 and therefore the valve 34 in the closed state. When the door opens, the push rod 41 is released from its stress thrust and the valve 34 is driven in tilting down by gravity, bringing it into position totally open. This position allows to limit strongly the risk of backfire coming escape through the front door of the fireplace.

On comprendra que les formes décrites permettent un montage et un démontage faciles de la boíte à fumées, par une simple manεuvre manuelle ne nécessitant aucun outil.It will be understood that the forms described allow easy assembly and disassembly of the smoke box, by a simple manual operation requiring no tools.

L'espace délimité par l'épaulement 18 de la buse 13, les parois concentriques de la chambre de réception 17 et de la pièce porte-clapet 19 constituent une chambre annulaire de récupération 43 dans laquelle se produit un ralentissement des fumées et un échange de chaleur. Elle communique par le bas avec le foyer par la couronne 20 crénelée et par le haut avec le conduit d'évacuation 15 à travers un intervalle d'échappement 44 existant entre l'épaulement 18 de la buse 13 et le bord supérieur de la pièce porte-clapet 19.The space delimited by the shoulder 18 of the nozzle 13, the concentric walls of the reception 17 and the valve member 19 constitute an annular recovery chamber 43 in which there is a slowing down of the fumes and an exchange heat. It communicates from below with the hearth by the crenellated crown 20 and from above with the exhaust duct 15 through an interval exhaust 44 existing between the shoulder 18 of the nozzle 13 and the upper edge of the valve member 19.

Selon une caractéristique essentielle de la présente invention, cette chambre annulaire de récupération peut être conformée et aménagée en une chambre de postcombustion 46 pour les matières imbrûlées qui traversent cette chambre au sein des fumées de combustion.According to an essential characteristic of the present invention, this annular chamber of recovery can be shaped and arranged in one afterburner 46 for materials unburnt that pass through this room within combustion fumes.

Afin que la combustion complète des imbrûlés puisse avoir lieu dans la chambre de postcombustion, deux conditions doivent être remplies simultanément : la quantité d'oxygène et la température doivent être suffisantes pour que les matières imbrûlées se retrouvent dans des conditions de combustion.So that the complete combustion of unburnt can take place in the afterburner, two conditions must be met simultaneously: the amount of oxygen and the temperature should be sufficient for unburnt material to find themselves in combustion conditions.

Lorsque ces deux conditions sont remplies, la combustion des imbrûlées se déclenche automatiquement dans la chambre de postcombustion et génère une quantité importante de calories qui peuvent être récupérées. La postcombustion est ensuite auto-entretenue, tant qu'il reste des matières à brûler et de l'oxygène en quantité suffisante, grâce à la chaleur qu'elle produit.When these two conditions are met, the burning unburnt fires automatically in the afterburner and generates a significant amount of calories that can be recovered. The afterburner is then self-sustaining, as long as there is material left to burn and sufficient oxygen, thanks to the heat that it produces.

La combustion du combustible solide, débutée à l'intérieur du foyer, peut se terminer dans la chambre de postcombustion où les composés imbrûlés polluants sont dégradés à leur tour. Les rejets polluants dans l'atmosphère sont ainsi considérablement réduits.Solid fuel combustion started inside the fireplace, can end in the afterburner where unburnt compounds pollutants are degraded in turn. The rejects pollutants in the atmosphere are thus considerably reduced.

Pour atteindre ces objectifs, le dispositif selon l'invention comporte une rampe à air soufflé 47 disposée de préférence à proximité de l'entrée 48 de la chambre de postcombustion située entre les bords inférieurs de la buse 13 et du porte-clapet 19. Cette rampe à air soufflé apporte de l'air neuf à température appropriée.To achieve these objectives, the system according to the invention comprises a supply air ramp 47 preferably located near entrance 48 of the afterburner located between the edges nozzle 13 and the valve holder 19. This supply air ramp provides fresh air at temperature appropriate.

La rampe à air soufflé (47) peut également être placée de façon avantageuse dans la boíte à fumées, c'est-à-dire dans la structure décrite située dans la partie haute du foyer.The supply air ramp (47) can also be placed advantageously in the box smoke, that is to say in the described structure located in the upper part of the foyer.

Elle se présente sous la forme d'une tubulure 49 dont une partie est conformée en une couronne 50, dont le diamètre correspond de préférence sensiblement à celui de l'entrée de la chambre annulaire de postcombustion 46 ou est légèrement supérieur à celui-ci. La tubulure 49 se poursuit par une partie de raccordement 51 débouchant à l'extérieur de l'appareil de chauffage.It comes in the form of a tubing 49, part of which is shaped like a crown 50, the diameter of which preferably corresponds substantially to that of the entrance to the annular chamber of afterburner 46 or is slightly higher than this. Tubing 49 continues with part of connection 51 opening to the outside of the appliance of heating.

La partie en couronne 50 de la tubulure présente des orifices 52 de distribution d'air, de préférence régulièrement répartis sur toute sa longueur et orientés par exemple en regard de l'entrée 48 de la chambre de postcombustion. Ces orifices pourraient être orientés différemment, notamment vers la sortie de la chambre de postcombustion.The crown portion 50 of the tubing has air distribution orifices 52, preferably evenly distributed over its entire length and oriented for example next to entry 48 of the afterburner. These holes could be oriented differently, in particular towards the exit of the afterburner.

La rampe à air soufflé 47 permet d'apporter à l'entrée de la chambre de postcombustion le supplément d'oxygène nécessaire à la combustion des imbrûlés, sous la forme d'air prélevé à l'extérieur de l'appareil de chauffage et distribué par les orifices 52. Pour améliorer l'injection de l'air, les orifices 52 peuvent avantageusement être conformés de manière à jouer le rôle de buses.The supply air ramp 47 provides the entrance to the afterburner room the supplement of oxygen necessary for the combustion of unburnt, under the form of air taken from the outside of the heating and distributed through orifices 52. For improve air injection, orifices 52 can advantageously be shaped so as to play the role of nozzles.

L'air est soufflé à l'entrée de la chambre de postcombustion par un courant naturel ou par un flux forcé à l'aide par exemple d'une turbine ou d'un ventilateur.The air is blown at the entrance to the post-combustion by natural current or by flow forced using for example a turbine or a fan.

Afin de fournir également l'apport calorifique nécessaire au déclenchement de la postcombustion, le dispositif comporte un moyen quelconque de chauffage de l'air distribué par la rampe 47 ou un moyen de chauffage direct de la chambre de postcombustion 46, comprenant par exemple une ou plusieurs résistances électriques.In order to also provide input calorific required to trigger the afterburner, the device includes a means any heating of the air distributed by the ramp 47 or a means of direct heating of the afterburner 46, including for example one or several electrical resistances.

Selon un mode de réalisation préférentiel, l'air diffusé par la rampe 47 est chauffé à une température suffisante. Dans ce but, la partie de raccordement 51 de la tubulure 49 passe préférentiellement à l'intérieur de la chambre de combustion 4 du foyer 2 de l'appareil de chauffage avant d'aboutir dans la boíte à fumées.According to a preferred embodiment, the air diffused by the ramp 47 is heated to a sufficient temperature. For this purpose, the part of connection 51 of tubing 49 pass preferably inside the chamber combustion 4 of hearth 2 of the heater before ending up in the smoke box.

Le dispositif selon l'invention peut également comporter en outre un moyen annexe de chauffage, venant compléter l'apport calorifique en provenance du foyer et de la combustion primaire s'effectuant dans la chambre de combustion 4, afin d'atteindre un niveau de chaleur suffisant pour générer la postcombustion.The device according to the invention can also include in addition an additional means of heating, complementing the calorific intake by source of fire and primary combustion taking place in the combustion chamber 4, so reach a level of heat sufficient to generate afterburning.

Le fonctionnement d'un tel moyen de chauffage annexe peut être requis lorsque la chaleur du foyer est insuffisante, notamment lors du démarrage de la combustion primaire ou lorsque le feu diminue.The operation of such a heating means Annex may be required when the heat of the fireplace is insufficient, especially when starting the primary combustion or when the fire decreases.

On peut avantageusement imaginer un système de régulation pilotant automatiquement la mise en route et l'extinction du moyen de chauffage annexe, comportant par exemple un capteur de température placé dans la chambre de postcombustion ou en amont de celle-ci afin de détecter une absence éventuelle de postcombustion.One can advantageously imagine a system regulation automatically controlling the start-up and the extinction of the additional heating means, comprising for example a temperature sensor placed in or upstream of the afterburner in order to detect a possible absence of afterburner.

La circulation de l'air dans la tubulure 49, de l'extrémité débouchant à l'extérieur de l'appareil de chauffage jusqu'à la couronne 50 où il s'échappe à travers les orifices 52, s'effectue naturellement du fait de la différence de densité de l'air chaud. On peut néanmoins prévoir de forcer ou d'accélérer cette circulation, par exemple au moyen d'un ventilateur ou d'une turbine, afin d'augmenter le débit de l'air soufflé à travers les orifices 52.The air circulation in the pipe 49, from the end opening to the outside of the appliance heating up to crown 50 where it escapes through the orifices 52, takes place naturally from makes the difference in density of hot air. We may nevertheless plan to force or accelerate this circulation, for example by means of a fan or a turbine, in order to increase the air flow blown through the holes 52.

A leur sortie de la chambre de combustion 4 du foyer 2, les fumées de combustion contenant les matières imbrûlées passent à proximité de la couronne 50 de la rampe à air soufflé 47 et se mélangent à l'air chaud et riche en oxygène soufflé à travers les orifices 52. Les fumées pénètrent alors dans la chambre de postcombustion 46 par l'entrée 48 à travers les parties vides 22 de la couronne 20 et subissent une postcombustion. On leaving the combustion chamber 4 of fireplace 2, the combustion fumes containing the unburnt materials pass near the crown 50 from the supply air manifold 47 and mix with the air hot and rich in oxygen blown through orifices 52. The fumes then enter the chamber afterburner 46 through entrance 48 through empty parts 22 of the crown 20 and undergo a afterburner.

De par sa forme coudée, la chambre de postcombustion 46 provoque un ralentissement de la circulation des fumées avant leur évacuation à travers le conduit d'évacuation 15. Ce ralentissement permet à la postcombustion d'avoir le temps de se réaliser complètement au sein de la chambre de postcombustion. En outre, il rend possible un échange de chaleur maximum permettant de récupérer les calories produites par la postcombustion.Due to its angled shape, the afterburner 46 causes a slowdown in circulation of fumes before their evacuation through the exhaust duct 15. This slowing down allows the afterburner to have time to come true completely within the afterburner. In addition, it makes possible a heat exchange maximum to recover the calories produced by afterburning.

Afin d'amplifier ce phénomène d'échange de chaleur, il est possible d'allonger encore le trajet des fumées et de multiplier les surfaces d'échange thermique. Ainsi par exemple, un mode de réalisation particulièrement avantageux a été représenté sur la figure 4. Dans cette variante préférentielle, l'épaulement 18 de la buse 13 est prolongé sur sa face inférieure par un rebord circulaire 53 s'étendant vers le bas, qui forme ainsi dans l'intervalle d'échappement 44 une chicane que les fumées sont obligées de contourner avant de pouvoir emprunter le conduit d'évacuation 15.In order to amplify this phenomenon of exchange of heat, it is possible to further lengthen the route fumes and multiply the exchange surfaces thermal. So for example, an embodiment particularly advantageous has been shown on the figure 4. In this preferred variant, the shoulder 18 of the nozzle 13 is extended on its face lower by a circular rim 53 extending towards the bottom, which thus forms in the escape gap 44 a chicane that the fumes are forced to bypass before you can take the conduit evacuation 15.

Afin d'améliorer encore l'évacuation de la chaleur récupérée dans la chambre de postcombustion, des ailettes 54 peuvent avantageusement être prévues sur le côté extérieur de la partie cylindrique inférieure 16 de la buse 13. De préférence, ces ailettes 54 sont disposées radialement, à intervalles réguliers et de manière sensiblement verticale. De telles ailettes 54 ont été représentées sur les figures 3 et 4.In order to further improve the evacuation of the heat recovered in the afterburner, fins 54 can advantageously be provided on the outside of the cylindrical part lower 16 of the nozzle 13. Preferably, these fins 54 are arranged radially, at intervals regular and substantially vertical. Of such fins 54 have been shown in the figures 3 and 4.

A l'étude des figures, on pourra remarquer une dernière modification possible par rapport à la boíte à fumées décrite dans la demande de brevet antérieure. Elle concerne le positionnement du conduit d'évacuation 15 par rapport à la boíte à fumées et plus précisément par rapport à la buse 13.When studying the figures, we can notice a last possible modification compared to the smoke box described in the patent application earlier. It concerns the positioning of the duct exhaust 15 with respect to the smoke box and more precisely with respect to nozzle 13.

Celui-ci ne se trouve plus directement emmanché à la sortie de la chambre de récupération 43 transformée ici en chambre de postcombustion 46, mais a été décalé vers le haut où il repose de préférence sur un épaulement d'appui 55 conformé sur la face intérieure du tronçon cylindrique supérieur 14 de la buse 13.It is no longer directly fitted at the outlet of recovery chamber 43 transformed here into afterburner 46, but has been shifted upwards where it preferably rests on a support shoulder 55 shaped on the face inside of the upper cylindrical section 14 of the nozzle 13.

Cette modification est conseillée pour des raisons de sécurité, afin d'éviter que l'extrémité du conduit d'évacuation 15 ne soit déformée ou détériorée par les flammes ou les hautes températures régnant dans la chambre de postcombustion.This modification is recommended for security reasons, in order to prevent the end of the exhaust duct 15 is deformed or deteriorated by flames or high temperatures prevailing in the afterburner.

Claims (19)

Boíte à fumées démontable à clapet automatique intégré pour un appareil de chauffage à combustible solide formée d'une buse tubulaire (13) sur une partie de laquelle vient s'emmancher un conduit d'évacuation (15) des fumées, buse (13) réalisée en deux parties cylindriques de diamètres différents séparées par un épaulement (18), dont une partie supérieure (14) et une partie inférieure (16) de plus grand diamètre formant une chambre de réception (17) pour les autres pièces constituantes dont un clapet automatique (34) maintenu en position de fermeture par la porte du foyer (1) de l'appareil de chauffage lorsqu'elle se trouve en position fermée et s'ouvrant automatiquement par basculement vers le bas lors de l'ouverture de la porte caractérisée en ce que l'extrémité basse de la buse (13) est munie de structures de fixation sur la paroi supérieure du foyer (1), en ce que la chambre de réception (17) comporte des moyens d'assemblage rapide avec une pièce monobloc porte-clapet (19) de forme générale cylindrique formant avec la buse (13) une chambre annulaire (43) de récupération de chaleur, pièce porte-clapet (19) venant s'engager et s'assembler à maintien dans la chambre de réception (17) par une simple manεuvre manuelle ne nécessitant aucun outil, en ce que le clapet (34) présente un axe diamétral (33) dont les extrémités (32) en bout d'arbre dépassent de son bord périphérique pour venir porter à pivotement sur des surfaces palières de la pièce porte-clapet (19), et en ce qu'elle comporte une chambre de postcombustion (46).Removable smoke box with integrated automatic valve for a solid fuel heating device formed by a tubular nozzle (13) on a part of which is fitted a smoke evacuation duct (15), nozzle (13) made in two cylindrical parts of different diameters separated by a shoulder (18), including an upper part (14) and a lower part (16) of larger diameter forming a receiving chamber (17) for the other constituent parts including an automatic valve (34) held in the closed position by the hearth door (1) of the heating appliance when it is in the closed position and opens automatically by tilting down when the door is opened, characterized in that the lower end of the nozzle (13) is provided with fixing structures on the upper wall of the hearth (1), in that the receiving chamber (17) comprises means of rapid assembly with a single piece loc valve holder (19) of generally cylindrical shape forming with the nozzle (13) an annular chamber (43) of heat recovery, valve holder piece (19) coming to engage and be assembled to hold in the chamber reception (17) by a simple manual operation requiring no tools, in that the valve (34) has a diametrical axis (33) whose ends (32) at the end of the shaft protrude from its peripheral edge to come to pivot on landing surfaces of the valve-holder part (19), and in that it comprises an afterburner chamber (46). Boíte à fumées selon la revendication précédente caractérisée en ce que la chambre de postcombustion (46) est conformée et aménagée dans la chambre de récupération de chaleur (43) définie entre les parois de la chambre de réception (17) de la buse et de la pièce porte-clapet (19).Smoke box according to the preceding claim characterized in that the afterburner chamber (46) is shaped and arranged in the heat recovery chamber (43) defined between the walls of the receiving chamber (17) of the nozzle and the valve holder part (19). Boíte à fumées selon l'une quelconque des revendications précédentes caractérisée en ce qu'une rampe à air soufflé (47) fournit le supplément d'oxygène nécessaire à la postcombustion.Smoke box according to any one of the preceding claims, characterized in that a blown air ramp (47) provides the additional oxygen necessary for afterburning. Boíte à fumées selon la revendication précédente caractérisée en ce que la rampe à air soufflé (47) est disposée à proximité de l'entrée (48) de la chambre de postcombustion.Smoke box according to the preceding claim characterized in that the blown air ramp (47) is arranged near the inlet (48) of the afterburner chamber. Boíte à fumées selon la revendication 3 caractérisée en ce que la rampe à air soufflé (47) est placée dans la boíte à fumées.Smoke box according to claim 3 characterized in that the blown air ramp (47) is placed in the smoke box. Boíte à fumées selon la revendication 3 ou 4 ou 5 caractérisée en ce que la rampe à air soufflé (47) se présente sous la forme d'une tubulure (49) dont une partie est conformée en une couronne (50) poursuivie par une partie de raccordement (51) débouchant à l'extérieur de l'appareil de chauffage.Smoke box according to claim 3 or 4 or 5 characterized in that the blown air ramp (47) is in the form of a tube (49), part of which is shaped like a crown (50) followed by a part connection (51) opening to the outside of the heating appliance. Boíte à fumées selon la revendication précédente caractérisée en ce que la partie en couronne (50) de la tubulure présente des orifices (52) de distribution d'air.Smoke box according to the preceding claim characterized in that the crown portion (50) of the tube has air distribution orifices (52). Boíte à fumées selon la revendication 7 caractérisée en ce que les orifices (52) sont régulièrement répartis sur toute la longueur de la partie en couronne (50) et sont orientés en regard de l'entrée (48) de la chambre de postcombustion (46).Smoke box according to claim 7 characterized in that the orifices (52) are regularly distributed over the entire length of the ring portion (50) and are oriented opposite the inlet (48) of the afterburner chamber (46 ). Boíte à fumées selon la revendication 7 caractérisée en ce que les orifices (52) sont orientés vers la sortie de la chambre de postcombustion (46).Smoke box according to claim 7 characterized in that the orifices (52) are oriented towards the outlet of the afterburner chamber (46). Boíte à fumées selon la revendication 7 ou 8 ou 9 caractérisée en ce que les orifices (52) sont conformés de manière à jouer le rôle de buses.Smoke box according to claim 7 or 8 or 9 characterized in that the orifices (52) are shaped so as to act as nozzles. Boíte à fumées selon l'une quelconque des revendications 3 à 10 caractérisée en ce qu'elle comporte un moyen de chauffage de l'air distribué par la rampe (47) ou de chauffage de la chambre de postcombustion (46).Smoke box according to any one of claims 3 to 10 characterized in that it comprises a means for heating the air supplied by the ramp (47) or for heating the afterburner chamber (46). Boíte à fumées selon les revendications 5 et 11 caractérisée en ce que la partie de raccordement (51) de la rampe à air soufflé (47) passe à l'intérieur de la chambre de combustion (4) du foyer de l'appareil de chauffage avant d'aboutir dans la boíte à fumées.Smoke box according to claims 5 and 11 characterized in that the connection part (51) of the supply air manifold (47) passes inside the combustion chamber (4) of the hearth of the heating appliance before ending up in the smoke box. Boíte à fumées selon la revendication 11 ou 12 caractérisée en ce qu'elle comporte en outre un moyen de chauffage annexe.Smoke box according to claim 11 or 12 characterized in that it further comprises an additional heating means. Boíte à fumées selon la revendication 13 caractérisée en ce qu'elle comporte un système de régulation pilotant automatiquement la mise en route et l'extinction du moyen de chauffage annexe.Smoke box according to claim 13, characterized in that it includes a regulation system which automatically controls the switching on and off of the additional heating means. Boíte à fumées selon l'une quelconque des revendications 3 à 14 caractérisée en ce qu'elle comporte un moyen pour forcer la circulation de l'air à l'intérieur de la rampe à air soufflé (47), notamment un ventilateur ou une turbine.Smoke box according to any one of Claims 3 to 14, characterized in that it includes a means for forcing the circulation of air inside the blown air manifold (47), in particular a fan or a turbine . Boíte à fumées selon l'une quelconque des revendications précédentes caractérisée en ce que l'épaulement (18) de la buse (13) est prolongé sur sa face inférieure par un rebord circulaire (53) s'étendant vers le bas, formant ainsi une chicane que les fumées sont obligées de contourner avant de pouvoir emprunter le conduit d'évacuation (15).Smoke box according to any one of the preceding claims, characterized in that the shoulder (18) of the nozzle (13) is extended on its lower face by a circular flange (53) extending downwards, thus forming a chicane that the fumes are forced to bypass before being able to use the exhaust duct (15). Boíte à fumées selon l'une quelconque des revendications précédentes caractérisée en ce qu'elle comporte des ailettes (54) sur le côté extérieur de la partie cylindrique inférieure (16) de la buse (13).Smoke box according to any one of the preceding claims, characterized in that it has fins (54) on the outside of the lower cylindrical part (16) of the nozzle (13). Boíte à fumées selon l'une quelconque des revendications précédentes caractérisée en ce que le conduit d'évacuation (15) ne se trouve pas directement emmanché à la sortie de la chambre de postcombustion (46), mais est décalé vers le haut.Smoke box according to any one of the preceding claims, characterized in that the exhaust duct (15) is not directly fitted at the outlet of the afterburner (46), but is offset upwards. Boíte à fumées selon la revendication précédente caractérisée en ce qu'elle comporte un épaulement d'appui (55) conformé sur la face intérieure du tronçon cylindrique supérieur (14) de la buse (13) destiné à supporter le conduit d'évacuation (15).Smoke box according to the preceding claim, characterized in that it comprises a support shoulder (55) shaped on the inner face of the upper cylindrical section (14) of the nozzle (13) intended to support the exhaust duct (15 ).
EP03360096A 2002-09-09 2003-08-26 Heating apparatus comprising a dismountable smoke box with automatic check valve and with afterburning chamber Expired - Lifetime EP1396682B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0211143A FR2844339B1 (en) 2002-09-09 2002-09-09 DETACHABLE SMOKE BOX, AUTOMATIC CHECK VALVE AND POSTCOMBUSTION CHAMBER FOR HEATING APPARATUS.
FR0211143 2002-09-09

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EP1396682A1 true EP1396682A1 (en) 2004-03-10
EP1396682B1 EP1396682B1 (en) 2006-05-17

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EP03360096A Expired - Lifetime EP1396682B1 (en) 2002-09-09 2003-08-26 Heating apparatus comprising a dismountable smoke box with automatic check valve and with afterburning chamber

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EP (1) EP1396682B1 (en)
AT (1) ATE326665T1 (en)
DE (1) DE60305257D1 (en)
FR (1) FR2844339B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2980259A1 (en) * 2011-09-15 2013-03-22 Oliger France Heating device for heating by combustion of wood fuel in home, has housing including control unit internally interposed between combustion chamber and connector, for controlling flow of combustion gases coming from combustion chamber

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522782A1 (en) * 1982-01-11 1983-09-09 Fondis Sa IMPROVEMENT IN THE DIRECT EXHAUST OF SMOKE IN HEATED FIREPLACE HEATING UNITS
FR2831650A1 (en) * 2001-10-31 2003-05-02 Fondis Sa REMOVABLE SMOKE BOX WITH INTEGRATED AUTOMATIC VALVE FOR A HEATING APPLIANCE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522782A1 (en) * 1982-01-11 1983-09-09 Fondis Sa IMPROVEMENT IN THE DIRECT EXHAUST OF SMOKE IN HEATED FIREPLACE HEATING UNITS
FR2831650A1 (en) * 2001-10-31 2003-05-02 Fondis Sa REMOVABLE SMOKE BOX WITH INTEGRATED AUTOMATIC VALVE FOR A HEATING APPLIANCE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2980259A1 (en) * 2011-09-15 2013-03-22 Oliger France Heating device for heating by combustion of wood fuel in home, has housing including control unit internally interposed between combustion chamber and connector, for controlling flow of combustion gases coming from combustion chamber

Also Published As

Publication number Publication date
ATE326665T1 (en) 2006-06-15
FR2844339B1 (en) 2005-04-15
FR2844339A1 (en) 2004-03-12
DE60305257D1 (en) 2006-06-22
EP1396682B1 (en) 2006-05-17

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