WO2003038341A1 - Dismountable smoke box with automatic check valve for a heating apparatus - Google Patents

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

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Publication number
WO2003038341A1
WO2003038341A1 PCT/FR2002/003747 FR0203747W WO03038341A1 WO 2003038341 A1 WO2003038341 A1 WO 2003038341A1 FR 0203747 W FR0203747 W FR 0203747W WO 03038341 A1 WO03038341 A1 WO 03038341A1
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WO
WIPO (PCT)
Prior art keywords
valve
nozzle
smoke box
box according
holder part
Prior art date
Application number
PCT/FR2002/003747
Other languages
French (fr)
Inventor
Robert Richard
Original Assignee
Fondis S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fondis S.A. filed Critical Fondis S.A.
Publication of WO2003038341A1 publication Critical patent/WO2003038341A1/en

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Classifications

    • 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 removable smoke box with integrated automatic valve for a solid fuel heating appliance.
  • the flaps of these valves can be actuated automatically by a mechanical link connecting them to the door.
  • the door opening movement automatically triggers the tilting of the flap in its open position.
  • the valve is generally constituted by a pivoting flap about a pivot axis whose ends bear on two bearing surfaces fixed on the body of the discharge nozzle making the assembly difficult to dismantle.
  • the smoke deceleration circuit is developed separately from the central part of the exhaust nozzle, allowing neither easy access for sweeping nor disassembly and rapid removal for cleaning and possibly replacement.
  • the object of the present invention is to remedy these various drawbacks by providing, for a closed fireplace hearth or a stove or any other solid fuel heating appliance, a removable smoke box with automatic valve and with integrated heat exchanger.
  • the removable character is total by a central valve-holder part which is assembled by a simple manual operation called quarter turn inside the lower chamber of the evacuation nozzle.
  • the assembly and disassembly of the parts is thus quick and easy both in the factory during manufacture and during periodic cleaning and sweeping.
  • the annular recovery chamber of the exchanger uniformly radiates the heat in the central position in the upper volume above of the upper wall of the hearth allowing an optimal evacuation of the recovered heat.
  • This constitution allows the use of one-piece cast iron parts providing solidity, longevity and thermal inertia.
  • FIG. 1 is a schematic perspective view showing a closed hearth equipped with the smoke box according to one inventio
  • FIG. 2 is a perspective view of the smoke box in the dissociated state in which the different parts are offset vertically
  • FIG. 3 is a view in longitudinal section of the entire smoke box
  • Figures 4 and 5 are schematic plan views respectively showing the nozzle and the valve member seen from below
  • Figures 6 and 7 are bottom plan views showing the valve holder part in place respectively after introduction and after immobilization, illustrating how the rapid assembly of the valve member part with the nozzle is carried out.
  • the smoke box according to the invention is intended to equip any solid fuel heating appliance, without limiting its field of application. It was more particularly studied for a closed hearth of chimney.
  • This box 2 delimits a combustion chamber 4 constituting the hearth in which a wood fire must be burned 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 upper wall 9 of the hearth a recovery chamber 11 open towards the front by a front opening under the form, for example, several front vents such as 12 exhausting the flow of hot air in the room to be heated.
  • the smoke box 2 is mounted in the central position of the upper part of the closed hearth 1.
  • nozzle 13 consisting of a single piece of generally cylindrical tubular shape having at its upper end a birth in the form of a tubular cylindrical section 14 on which is fitted by fitting a conduit 15 for discharging the fumes.
  • the body of the nozzle 13 ends at its other end with a cylindrical part 16 of larger diameter delimiting a receiving chamber 17.
  • the two end parts of the nozzle are separated by a central connection forming a shoulder 18 between the two end parts.
  • valve-holder part 19 of generally cylindrical shape. It is mounted in this reception chamber 17 by a rapid assembly means of the type, for example with quick locking known as quarter turn or with bayonet or any other equivalent means of rapid assembly.
  • This valve-holder part 19, as shown in FIG. 2 has a body tubular of generally cylindrical shape the edge of the base of which is in the form of a lower outer peripheral ring 20 for slowing down and holding, extending in peripheral outward projection.
  • This ring 20 has an alternating structure of solid parts 21 and of empty or hollowed out parts 22, for example angular portions 23 in slots 21 followed by notches 22 separated by angular zones 24 of engagement and holding. These angular zones 24 each have at least one receiving slot 25 and an insertion notch 26 of larger dimension than the slots 21 and notches 22 intended to cooperate with support and blocking elements of the lower terminal structure of the nozzle. 13.
  • FIG. 2 An example of these support and blocking elements forming the means of lower terminal structure is shown in FIG. 2.
  • They are support legs such as 27 in the form, for example, of tongues or transverse tabs continuing in inwardly projecting by ears 28 projecting outwardly in the lower edge 29 in the crown of the nozzle 13.
  • These support and blocking elements have a shape complementary to that of the insertion notches 26.
  • the insertion notches 26 have a shape analogous to that of the notches of the deceleration structure while the receiving slots have a projecting shape with a radial cavity overlapping with lock each corresponding support tab 27.
  • valve member 19 continues upwards through two landing notches such as 30 diametrically opposite and with rounded bottoms recessed in the upper peripheral edge 31 of the valve member 19 to serve as a bearing for the ends 32 of the pivot axis 33 of a valve 34.
  • valve-holder part 19 Between these notches are formed in this valve-holder part 19 a right shoulder 35 and a left shoulder 36 semi-circular and different from each other corresponding to the two half-parts of the valve 34 against one of which the valve 34 comes into closing abutment.
  • the valve 34 is a one-piece cast iron disc-shaped part with two half-parts 37 and 38 of semi-circular contours of unequal dimensions, one part 37 of which is of larger diameter than the other 38 so as to introduce an asymmetry dimensional and mass and thus create an automatic return downwards tilting the valve 34 by its heavier half-part 37.
  • the valve 34 is mounted articulated by a pivot articulation 39 (FIG. 3) located on the face looking at the combustion chamber 4 of one of its half-parts.
  • the articulation 39 is pivotally actuated by the hook end 40 of a push rod 41 passing through its other end the upper front face of the device to abut by its front against the upper cross member of the glass door when the latter is closed or against a projection 42 provided opposite for this purpose.
  • the mechanical contact maintains the push rod 41 and therefore the valve 34 in the closed state, that is to say with a plane remaining parallel to the upper wall 9.
  • the push rod 41 is freed from its thrust constraint and the valve 34 is tilted downwards by gravity, bringing it into the fully open position. This position greatly limits the risk of flames escaping through the front door of the fireplace.
  • the push rod 41 is connected to the valve 34 by a pivot articulation 39 for example of the separable type from which the hooked end 40 of the push rod 41 can be easily disengaged.
  • Lugs 45 projecting inwardly from the interior edge of the birth serve as a downward stop at the bottom edge of the flue exhaust duct 15.
  • the invention is of great economic interest in the manufacture of these heaters and of all those on which such a smoke box can be mounted, as well as an exceptional ease of use and maintenance by the composition. of its smoke box in three monobloc pieces mounted one inside the other by a simple manual operation without requiring any tool.
  • the invention makes the heating device efficient from the point of view of thermal efficiency by lengthening the smoke path and the development of its exchange surfaces.
  • the functioning of the smoke box according to the invention turns out to be particularly simple.
  • the nozzle 13 is mounted by fixing it to the upper wall of the closed hearth 1, for example that shown in FIG. 1, using screws or bolts present at the ends of the support legs of the lower periphery of the nozzle 13.
  • We mount the 'other end the exhaust duct 15 then we proceed with the fitting of the valve-holder part 19.
  • we place the valve 34 by engaging the ends of its pivot axis 33 in the landing notches 30 thus allowing the valve 34 to be carried by the valve holder part 19.
  • the latter is mounted in the receiving chamber 17 of the nozzle 13 in the following manner.
  • valve-holder part 19 The engagement and holding structures of the valve-holder part are oriented so that the insertion notches 26 are presented opposite the support lugs 27 of the nozzle 13.
  • the valve-holder part 19 can thus engage in the reception chamber 17 by a simple guided upward movement.
  • the valve-holder part 19 When the valve-holder part 19 has indeed penetrated into the receiving chamber 17, that is to say that its crown 20 has protruded inwardly the plane defined by the support legs 27, it is pivoted on itself according to the arrow of FIG. 4 by an angle sufficient to bring the receiving slots 25 in front of the parts of the support lugs 27 directed towards the interior of the receiving chamber 17 so that they overlap and rest blocking on them. The pivoting immobilization and the downward restraint are thus ensured.
  • the valve member 19 is thus easily and quickly mounted in the nozzle 13 and is ready for permanent operation.
  • Disassembly is just as quick and simple. It has the same advantages. All of these operations can therefore be performed frequently without any difficulty, making maintenance and sweeping operations particularly easy. The same is true for the construction and installation of the apparatus and the repairs requiring passage through the nozzle 13.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)

Abstract

The invention concerns an integrated dismountable smoke box with automatic check valve consisting of three components mutually assembled by hand, a nozzle (13) receiving the evacuation conduit (15), in a lower reception chamber (17) of said nozzle is urged to be engaged and mounted a valve-holder component (19) by fast assembling means delimiting with the nozzle (13) an annular heat recovery chamber (34), a check valve (34) constituting the third component being mounted pivotably articulated on the valve-holder component (19). Said invention is of interest to manufacturers of solid fuel heating appliances.

Description

Boîte à fumées démontable à clapet automatique intégré pour un appareil de chauffageRemovable smoke box with integrated automatic flap for a heater
La présente invention se rapporte à une boîte à fumées démontable à clapet automatique intégré pour un appareil de chauffage à combustible solide.The present invention relates to a removable smoke box with integrated automatic valve for a solid fuel heating appliance.
Lors du fonctionnement d'un appareil de chauffage à combustible solide, l'allure du feu doit être maîtrisée pour éviter la fuite d'une partie des calories dans le circuit d'évacuation des gaz et fumées de combustion.When operating a solid fuel-fired heating appliance, the speed of the fire must be controlled to avoid the escape of part of the calories in the exhaust gas and smoke evacuation circuit.
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.In addition, to increase the heat output of the heating appliance, the combustion gases and fumes are slowed down by various baffles in the upper part of the hearth also making it possible to lengthen their path.
Dans ce circuit, le flux aeraulique ralenti abandonne la majorité des calories qui seraient parties à l'atmosphère. Par ailleurs, pour éviter la sortie du flux aeraulique brûlant et éventuellement des flammes par la porte lorsque celle-ci est ouverte pour le réapprovisionnement en combustible, il existe des clapets d'évacuation directe. Ces clapets obturent la section du conduit d'évacuation pendant le régime permanent forçant ainsi le flux aeraulique de combustion à passer par l'échangeur à chicane qui se développe en-dessous du conduit d'évacuation. Ces clapets libèrent en basculant la section du conduit d'évacuation lors de l'ouverture de la porte afin de permettre au flux aeraulique brûlant de s'évacuer totalement par le conduit et non pas par la porte.In this circuit, the slowed down air flow leaves the majority of the calories that would have gone to the atmosphere. Furthermore, to avoid the exit of the hot air flow and possibly of flames through the door when the latter is open for refueling, there are direct discharge valves. These valves close off the section of the exhaust duct during the steady state, thus forcing the aeraulic flow of combustion to pass through the baffle exchanger which develops below the exhaust duct. These valves release by tilting the section of the exhaust duct when the door is opened in order to allow the burning aeraulic flow to be completely evacuated by the duct and not by the door.
Les volets de ces clapets peuvent être actionnés automatiquement par une liaison mécanique les reliant à la porte. Le mouvement d'ouverture de la porte déclenche automatiquement le basculement du clapet dans sa position d'ouverture.The flaps of these valves can be actuated automatically by a mechanical link connecting them to the door. The door opening movement automatically triggers the tilting of the flap in its open position.
Le clapet est en général constitué par un volet pivotant autour d'un axe de pivotement dont les extrémités portent sur deux surfaces palières fixées sur le corps de la buse d'évacuation rendant l'ensemble difficilement démontable.The valve is generally constituted by a pivoting flap about a pivot axis whose ends bear on two bearing surfaces fixed on the body of the discharge nozzle making the assembly difficult to dismantle.
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 rapide pour le nettoyage et éventuellement le remplacement .In addition, the smoke deceleration circuit is developed separately from the central part of the exhaust nozzle, allowing neither easy access for sweeping nor disassembly and rapid removal for cleaning and possibly replacement.
La présente invention a pour but de remédier à ces divers inconvénients en procurant, pour un foyer fermé de cheminée ou un poêle ou tout autre appareil de chauffage à combustible solide, une boîte à fumées démontable à clapet automatique et à échangeur de chaleur intégré.The object of the present invention is to remedy these various drawbacks by providing, for a closed fireplace hearth or a stove or any other solid fuel heating appliance, a removable smoke box with automatic valve and with integrated heat exchanger.
Le caractère démontable est total par une pièce centrale porte-clapet venant se monter par une simple manoeuvre manuelle dite quart de tour à l'intérieur de la chambre inférieure de la buse d' évacuation.The removable character is total by a central valve-holder part which is assembled by a simple manual operation called quarter turn inside the lower chamber of the evacuation nozzle.
Le montage et le démontage des pièces est ainsi rapide et facilité aussi bien en usine lors de la fabrication que lors des nettoyages et ramonages périodiques.The assembly and disassembly of the parts is thus quick and easy both in the factory during manufacture and during periodic cleaning and sweeping.
Par ailleurs, cette simplification constructive permet de réduire le coût de la main- d'oeuvre et le prix de revient. En effet, il ne subsiste que trois pièces se montant rapidement l'une dans l'autre sans aucun outil pour constituer la boîte à fumées.Furthermore, this constructive simplification makes it possible to reduce the cost of labor and the cost price. In fact, there are only three pieces that quickly mount one inside the other without any tool to constitute the smoke box.
La chambre annulaire de récupération de 1 ' échangeur rayonne uniformément la chaleur en position centrale dans le volume supérieur au-dessus de la paroi supérieure du foyer permettant une évacuation optimale de la chaleur récupérée.The annular recovery chamber of the exchanger uniformly radiates the heat in the central position in the upper volume above of the upper wall of the hearth allowing an optimal evacuation of the recovered heat.
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 1 ' exutoire fait corps avec la boîte à fumées .This constitution allows the use of one-piece cast iron parts providing solidity, longevity and thermal inertia. There is also a compact assembly in which the outlet forms one body with the smoke box.
L'invention sera bien comprise avec d'autres caractéristiques et avantages qui apparaîtront 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 boîte à fumées selon 1 ' inventio , . la figure 2 est une vue en perspective de la boîte 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 boîte à fumées, . les figures 4 et 5 sont des vues schématiques en plan montrant respectivement la buse et la pièce porte-clapet vues d' en-dessous, . les figures 6 et 7 sont des vues en plan de dessous montrant la pièce porte-clapet en place respectivement après introduction et après immobilisation, illustrant la façon dont se réalise l'assemblage rapide de la pièce porte-clapet avec la buse.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 one inventio,. FIG. 2 is a perspective view of the smoke box in the dissociated state in which the different parts are offset vertically,. FIG. 3 is a view in longitudinal section of the entire smoke box,. Figures 4 and 5 are schematic plan views respectively showing the nozzle and the valve member seen from below,. Figures 6 and 7 are bottom plan views showing the valve holder part in place respectively after introduction and after immobilization, illustrating how the rapid assembly of the valve member part with the nozzle is carried out.
La boîte à fumées selon 1 ' 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 solid fuel heating appliance, without limiting its field of application. It was more particularly studied for a closed hearth of chimney.
On décrira maintenant 1 ' invention en référence aux figures en prenant comme exemple un foyer 1 fermé de cheminée sous la forme d'une boîte 2 fermée par une porte vitrée 3. Cette boîte 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. Une paroi de couverture 10 ferme la boîte 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.The invention will now be described with reference to the figures, taking as an example a hearth 1 closed with a chimney in the form of a box 2 closed by a glazed door 3. This box 2 delimits a combustion chamber 4 constituting the hearth in which a wood fire must be burned 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 upper wall 9 of the hearth a recovery chamber 11 open towards the front by a front opening under the form, for example, several front vents such as 12 exhausting the flow of hot air in the room to be heated.
La boîte à fumées 2 vient se monter en position centrale de la partie supérieure du foyer fermé 1.The smoke box 2 is mounted in the central position of the upper part of the closed hearth 1.
Elle se compose d'une buse 13 constituée d'une pièce monobloc de forme générale tubulaire cylindrique présentant à son extrémité supérieure une naissance sous la forme d'un tronçon cylindrique tubulaire 14 sur lequel vient se monter par emmanchement un conduit 15 d'évacuation des fumées.It consists of a nozzle 13 consisting of a single piece of generally cylindrical tubular shape having at its upper end a birth in the form of a tubular cylindrical section 14 on which is fitted by fitting a conduit 15 for discharging the fumes.
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 séparées par un raccordement central formant un épaulement 18 entre les deux parties d'extrémité.The body of the nozzle 13 ends at its other end with a cylindrical part 16 of larger diameter delimiting a receiving chamber 17. The two end parts of the nozzle are separated by a central connection forming a shoulder 18 between the two end parts.
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. Cette pièce porte-clapet 19, comme représenté sur la figure 2, présente un corps tubulaire de forme générale cylindrique dont le bord de la base est conformé en couronne 20 périphérique extérieure inférieure de ralentissement et de maintien s 'étendant en saillie périphérique vers l'extérieur. Cette couronne 20 présente une structure alternée de parties pleines 21 et de parties vides 22 ou évidées, par exemple des portions angulaires 23 en créneaux 21 suivies d'encoches 22 séparées par des zones angulaires 24 d'engagement et de maintien. Ces zones angulaires 24 présentent chacune au moins un créneau récepteur 25 et une encoche d'introduction 26 de plus grande dimension que les créneaux 21 et encoches 22 destinée à coopérer avec des éléments d'appui et de blocage de la structure terminale inférieure de la buse 13.In the receiving chamber 17 is mounted a valve holder part 19 of generally cylindrical shape. It is mounted in this reception chamber 17 by a rapid assembly means of the type, for example with quick locking known as quarter turn or with bayonet or any other equivalent means of rapid assembly. This valve-holder part 19, as shown in FIG. 2, has a body tubular of generally cylindrical shape the edge of the base of which is in the form of a lower outer peripheral ring 20 for slowing down and holding, extending in peripheral outward projection. This ring 20 has an alternating structure of solid parts 21 and of empty or hollowed out parts 22, for example angular portions 23 in slots 21 followed by notches 22 separated by angular zones 24 of engagement and holding. These angular zones 24 each have at least one receiving slot 25 and an insertion notch 26 of larger dimension than the slots 21 and notches 22 intended to cooperate with support and blocking elements of the lower terminal structure of the nozzle. 13.
Un exemple de ces éléments d'appui et de blocage formant les moyens de structure terminale inférieure est représenté sur la figure 2. Il s'agit de pattes-supports telles que 27 sous la forme par exemple de languettes ou de taquets transversaux se poursuivant en saillie vers l'intérieur par des oreilles 28 conformées en saillie vers l'extérieur dans le bord inférieur 29 en couronne de la buse 13. Ces éléments d'appui et de blocage affectent une forme complémentaire à celle des encoches d'introduction 26.An example of these support and blocking elements forming the means of lower terminal structure is shown in FIG. 2. They are support legs such as 27 in the form, for example, of tongues or transverse tabs continuing in inwardly projecting by ears 28 projecting outwardly in the lower edge 29 in the crown of the nozzle 13. These support and blocking elements have a shape complementary to that of the insertion notches 26.
A titre d'exemple, les encoches d'introduction 26 sont de forme analogue à celle des encoches de la structure de ralentissement alors que les créneaux récepteurs présentent une forme en saillie à cavité radiale venant chevaucher à blocage chaque patte-support 27 correspondante.By way of example, the insertion notches 26 have a shape analogous to that of the notches of the deceleration structure while the receiving slots have a projecting shape with a radial cavity overlapping with lock each corresponding support tab 27.
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 upwards through two landing notches such as 30 diametrically opposite and with rounded bottoms recessed in the upper peripheral edge 31 of the valve member 19 to serve as a bearing for the ends 32 of the pivot axis 33 of a valve 34.
Entre ces encoches se trouvent conformés dans cette pièce porte-clapet 19 un epaulement droit 35 et un epaulement gauche 36 semi-circulaires et différents l'un de l'autre correspondant aux deux demi-parties du clapet 34 contre l'un desquels le clapet 34 vient en butée de fermeture.Between these notches are formed in this valve-holder part 19 a right shoulder 35 and a left shoulder 36 semi-circular and different from each other corresponding to the two half-parts of the valve 34 against one of which the valve 34 comes into closing abutment.
Le clapet 34 est une pièce monobloc en fonte en forme de disque à deux demi-parties 37 et 38 de contours semi-circulaires 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 un rappel automatique vers le bas faisant basculer le clapet 34 par sa demi-partie 37 la plus lourde.The valve 34 is a one-piece cast iron disc-shaped part with two half-parts 37 and 38 of semi-circular contours of unequal dimensions, one part 37 of which is of larger diameter than the other 38 so as to introduce an asymmetry dimensional and mass and thus create an automatic return downwards tilting the valve 34 by its heavier half-part 37.
Le clapet 34 est monté articulé par une articulation de pivotement 39 (figure 3) se trouvant sur la face regardant la chambre de combustion 4 de l'une de ses demi-parties. L'articulation 39 est actionnée en pivotement par l'extrémité en crochet 40 d'une tige de poussée 41 traversant par son autre extrémité la face avant supérieure de l'appareil pour venir buter par son front contre la traverse supérieure de la porte vitrée lorsque celle-ci est fermée ou contre une saillie 42 prévue en regard à cet effet. Le contact mécanique maintient la tige de poussée 41 et donc le clapet 34 à l'état fermé, c'est- à-dire à plan restant parallèle à la paroi supérieure 9. Lorsque la porte s'ouvre, la tige de poussée 41 est libérée de sa contrainte de poussée et le clapet 34 est entraîné en basculement vers le bas par gravité, l'amenant en position totalement ouverte. Cette position permet de limiter fortement le risque de flammes venant s'échapper par la porte avant du foyer.The valve 34 is mounted articulated by a pivot articulation 39 (FIG. 3) located on the face looking at the combustion chamber 4 of one of its half-parts. The articulation 39 is pivotally actuated by the hook end 40 of a push rod 41 passing through its other end the upper front face of the device to abut by its front against the upper cross member of the glass door when the latter is closed or against a projection 42 provided opposite for this purpose. The mechanical contact maintains the push rod 41 and therefore the valve 34 in the closed state, that is to say with a plane remaining parallel to the upper wall 9. When the door opens, the push rod 41 is freed from its thrust constraint and the valve 34 is tilted downwards by gravity, bringing it into the fully open position. This position greatly limits the risk of flames escaping through the front door of the fireplace.
Comme indiqué, la tige de poussée 41 est reliée au clapet 34 par une articulation de pivotement 39 par exemple du type dissociable de laquelle l'extrémité en crochet 40 de la tige de poussée 41 peut se dégage facilement. L'espace délimité par 1 ' epaulement 18 de la buse 13, les parois concentriques de la chambre de réception 17 et celles de la pièce porte-clapet 19 constitue 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 à travers un intervalle d'échappement 44 existant entre 1" epaulement 17 de la buse 13 et le bord supérieur de la pièce porte-clapet 19. Cette chambre annulaire de récupération force les fumées à ralentir et allonge leur trajet jusqu'à la sortie pour qu'elles perdent encore des calories avant de s'échapper à l'extérieur.As shown, the push rod 41 is connected to the valve 34 by a pivot articulation 39 for example of the separable type from which the hooked end 40 of the push rod 41 can be easily disengaged. The space delimited by the shoulder 18 of the nozzle 13, the concentric walls of the receiving chamber 17 and those of the valve-holding part 19 constitutes an annular recovery chamber 43 in which a deceleration of the fumes and an exchange takes place heat. It communicates from below with the hearth by the crenellated crown 20 and from above through an exhaust gap 44 existing between 1 "shoulder 17 of the nozzle 13 and the upper edge of the valve-holder part 19. This annular chamber recovery forces the fumes to slow down and lengthens their journey to the exit so that they still lose calories before escaping outside.
Des ergots 45 en saillie vers l'intérieur du bord intérieur de la naissance servent de butée vers le bas au bord inférieur du conduit 15 d'évacuation des fumées .Lugs 45 projecting inwardly from the interior edge of the birth serve as a downward stop at the bottom edge of the flue exhaust duct 15.
On comprendra que 1 ' invention présente un grand intérêt économique à la fabrication de ces appareils de chauffage et de tous ceux sur lesquels une telle boîte à fumées peut être montée, ainsi qu'une facilité exceptionnelle d'utilisation et d'entretien par la composition de sa boîte à fumées en trois pièces monobloc montées l'une dans l'autre par une simple manoeuvre manuelle sans nécessiter un quelconque outil.It will be understood that the invention is of great economic interest in the manufacture of these heaters and of all those on which such a smoke box can be mounted, as well as an exceptional ease of use and maintenance by the composition. of its smoke box in three monobloc pieces mounted one inside the other by a simple manual operation without requiring any tool.
On comprendra aussi que l'invention rend l'appareil de chauffage performant du point de vue rendement thermique par l'allongement du trajet des fumées et le développement de ses surfaces d'échange.It will also be understood that the invention makes the heating device efficient from the point of view of thermal efficiency by lengthening the smoke path and the development of its exchange surfaces.
Le fonctionnement de la boîte à fumées selon l'invention s'avère particulièrement simple. On monte la buse 13 en la fixant sur la paroi supérieure du foyer fermé 1 par exemple celui représenté sur la figure 1 en utilisant des vis ou des boulons présents aux extrémités des pattes supports de la périphérie inférieure de la buse 13. On monte à l'autre extrémité le conduit d'évacuation 15 puis on procède à la pose de la pièce porte-clapet 19. Pour ce faire, on place le clapet 34 en engageant les extrémités de son axe de pivotement 33 dans les encoches palières 30 permettant ainsi au clapet 34 d'être porté par la pièce porte- clapet 19. Cette dernière est montée dans la chambre de réception 17 de la buse 13 de la façon suivante.The functioning of the smoke box according to the invention turns out to be particularly simple. The nozzle 13 is mounted by fixing it to the upper wall of the closed hearth 1, for example that shown in FIG. 1, using screws or bolts present at the ends of the support legs of the lower periphery of the nozzle 13. We mount the 'other end the exhaust duct 15 then we proceed with the fitting of the valve-holder part 19. To do this, we place the valve 34 by engaging the ends of its pivot axis 33 in the landing notches 30 thus allowing the valve 34 to be carried by the valve holder part 19. The latter is mounted in the receiving chamber 17 of the nozzle 13 in the following manner.
On oriente les structures d'engagement et de maintien de la pièce porte-clapet pour que les encoches d'introduction 26 se présentent en face des pattes-supports 27 de la buse 13. La pièce porte- clapet 19 peut ainsi s'engager dans la chambre de réception 17 par un simple mouvement ascendant guidé. Lorsque la pièce porte-clapet 19 a bien pénétré dans la chambre de réception 17 c'est-à-dire que sa couronne 20 a dépassé vers l'intérieur le plan défini par les pattes-supports 27, on la pivote sur elle même selon la flèche de la figure 4 d'un angle suffisant pour amener les créneaux récepteurs 25 en face des parties des pattes-supports 27 dirigées vers l'intérieur de la chambre de réception 17 de manière à ce qu'elle chevauchent et reposent à blocage sur celles-ci. L'immobilisation en pivotement et la retenue vers le bas sont ainsi assurées. La pièce porte-clapet 19 est ainsi montée facilement et rapidement dans la buse 13 et se trouve prête à un fonctionnement permanent.The engagement and holding structures of the valve-holder part are oriented so that the insertion notches 26 are presented opposite the support lugs 27 of the nozzle 13. The valve-holder part 19 can thus engage in the reception chamber 17 by a simple guided upward movement. When the valve-holder part 19 has indeed penetrated into the receiving chamber 17, that is to say that its crown 20 has protruded inwardly the plane defined by the support legs 27, it is pivoted on itself according to the arrow of FIG. 4 by an angle sufficient to bring the receiving slots 25 in front of the parts of the support lugs 27 directed towards the interior of the receiving chamber 17 so that they overlap and rest blocking on them. The pivoting immobilization and the downward restraint are thus ensured. The valve member 19 is thus easily and quickly mounted in the nozzle 13 and is ready for permanent operation.
Le démontage est tout aussi rapide et simple. Il présente les mêmes avantages. L'ensemble de ces opérations peut donc être effectué fréquemment sans aucune difficulté rendant ainsi les opérations d'entretien et de ramonage particulièrement aisées. Il en est de même pour la construction et l'installation de l'appareil et les dépannages nécessitant le passage à travers la buse 13. Disassembly is just as quick and simple. It has the same advantages. All of these operations can therefore be performed frequently without any difficulty, making maintenance and sweeping operations particularly easy. The same is true for the construction and installation of the apparatus and the repairs requiring passage through the nozzle 13.

Claims

REVENDICATIONS
1. Boîte 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 epaulement (18), dont une partie supérieure et une partie opposée 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 1 ' ouverture de la porte caractérisé en ce que l'extrémité basse de la buse (13) est munie de structures de fixation sur la paroi supérieure du foyer (1) et 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 grâce au ralentissement et à l'allongement du trajet des gaz et fumées de combustion, pièce porte-clapet (19) venant s'engager et s'assembler à maintien dans la chambre de réception (17) par une simple manoeuvre manuelle ne nécessitant aucun outil et 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).1. 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 discharge pipe (15) of smoke, nozzle (13 ) made in two cylindrical parts of different diameters separated by a shoulder (18), including an upper part and an opposite part of larger diameter forming a receiving chamber (17) for the other constituent parts including an automatic valve (34) maintained 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 end bottom of the nozzle (13) is provided with fixing structures on the upper wall of the hearth (1) and in that the receiving chamber (17) comprises rapid assembly means with a single piece port e-valve (19) of generally cylindrical shape forming with the nozzle (13) an annular chamber (43) for recovering heat by slowing down and lengthening the path of combustion gases and fumes, valve-holder part (19 ) coming to engage and assemble to hold in the receiving chamber (17) by a simple manual operation requiring no tools and 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 the bearing surfaces of the valve-holder part (19).
2. Boîte à fumées selon la revendication 1 caractérisée en ce que le bord de la base de la pièce porte-clapet (19) présente une couronne (20) en saillie périphérique vers le bas et vers l'extérieur formée d'une structure alternée, cette couronne (20) formant l'entrée de la chambre annulaire de récupération (43) délimitée par la paroi latérale de la chambre de réception (17) de la buse (13) et la paroi latérale en regard de la pièce porte-clapet2. Smoke box according to claim 1 characterized in that the edge of the base of the valve holder part (19) has a crown (20) in peripheral downward and outward projection formed of an alternating structure, this ring (20) forming the entrance to the annular recovery chamber (43) delimited by the side wall of the receiving chamber (17) of the nozzle (13) and the side wall opposite the valve member
(19).(19).
3. Boîte à fumées selon la revendication précédente caractérisée en ce que la couronne de la pièce porte-clapet (19) est échancree ou crénelée ou formée d'une alternance de créneaux (21) et d'encoches (22).3. Smoke box according to the preceding claim characterized in that the crown of the valve-holder part (19) is notched or crenellated or formed by alternating slots (21) and notches (22).
4. Boîte à fumées selon les revendications 1 ou 2 caractérisée en ce que la couronne (20) comporte des structures d'engagement et de maintien constituant des moyens d'assemblage rapide avec la buse (13).4. Smoke box according to claims 1 or 2 characterized in that the crown (20) comprises engagement and holding structures constituting means of rapid assembly with the nozzle (13).
5. Boîte à fumées selon la revendication 1 caractérisée en ce que la couronne périphérique extérieure inférieure (20) de la pièce porte-clapet (19) présente des saillies d'appui et de blocage en pivotement, chacune de celles-ci étant suivie ou précédée angulairement sur la périphérie de la couronne (20) de la pièce porte-clapet (19) par une encoche de plus grande longueur servant au passage de la pièce porte-clapet (19) dans une orientation angulaire donnée de cette pièce porte-clapet (19) en enfoncement dans la chambre de réception (17), cette pièce porte-clapet (19) étant ensuite pivotée en vue de son immobilisation.5. Smoke box according to claim 1 characterized in that the lower outer peripheral ring (20) of the valve holder part ( 19) has support projections and pivotally locking, each of these being followed or angularly preceded on the periphery of the crown (20) of the valve member (19) by a notch of greater length serving for the passage of the valve member (19) in a given angular orientation of this valve member (19) pressed into the receiving chamber (17), this valve-holder part (19) then being pivoted for its immobilization.
6. Boîte à fumées selon la revendication 1 caractérisée en ce que la buse (13) présente sur son bord inférieur des pattes-support transversales (27) en saillie vers l'intérieur et en saillie vers l'extérieur servant à sa fixation sur la paroi supérieure du foyer (1) et au maintien vertical et au blocage en pivotement de la pièce porte-clapet (19).6. Smoke box according to claim 1 characterized in that the nozzle (13) has on its lower edge transverse support legs (27) projecting inwardly and projecting outwardly for attachment to the upper wall of the hearth (1) and with vertical support and pivoting locking of the valve member (19).
7. Boîte à fumées selon les revendications précédentes 5 et 6 caractérisée en ce que les parties des pattes-support transversales (27) en saillie vers l'intérieur servent de support d'appui et de retenue vers le bas à la pièce porte-clapet (19) en coopérant avec les saillies d'appui et de blocage en pivotement que présente la couronne périphérique extérieure (20) inférieure de la pièce porte-clapet (19), chacune de celles-ci étant suivie ou précédée angulairement sur la périphérie de la couronne (20) de la pièce porte- clapet (19) par une encoche de plus grande longueur servant au passage de la pièce porte-clapet (19) dans une orientation angulaire donnée de cette pièce porte- clapet (19) en enfoncement dans la chambre de réception, cette pièce étant ensuite pivotée angulairement et abaissée pour que les saillies d'appui et de blocage reposent sur les pattes-support (27) et immobilisent ainsi la pièce porte-clapet (19) dans la chambre de réception (17) de la buse (13).7. Smoke box according to the preceding claims 5 and 6 characterized in that the parts of the transverse support legs (27) projecting inwards serve as a support for support and retaining downwards to the valve-holder part. (19) by cooperating with the pivoting support and locking projections presented by the lower outer peripheral ring (20) of the valve-holder part (19), each of these being angularly followed or preceded on the periphery of the crown (20) of the valve member (19) by a notch of greater length serving for the passage of the valve member (19) in a given angular orientation of this valve member (19) when inserted into the receiving chamber, this part then being angularly pivoted and lowered so that the support and locking projections rest on the support legs (27) and thus immobilize the valve-holding part (19) in the reception chamber (17 ) from the nozzle (13).
8. Boîte à fumées selon la revendication 1 caractérisée en ce que le clapet (34) est réalisé sous la forme d'un disque monobloc dont l'axe de pivotement (33) est conformé dans la masse de la pièce, cet axe (33) séparant le disque en deux demi-parties (37) et8. Smoke box according to claim 1 characterized in that the valve (34) is made in the form of a one-piece disc whose pivot axis (33) is shaped in the mass of the part, this axis (33 ) separating the disc into two half-parts (37) and
(38).(38).
9. Boîte à fumées selon la revendication précédente caractérisée en ce que les deux demi- parties (37) et (38) sont inégales. 9. Smoke box according to the preceding claim characterized in that the two half-parts (37) and (38) are unequal.
10. Boîte à fumées selon la revendication précédente caractérisée en ce que la pièce porte- clapet (19) présente dans sa partie supérieure un epaulement semi circulaire (36) servant à obturer totalement l'ouverture située du côté de la demi- partie la plus petite du clapet (34) lorsque celui-ci est en position fermée. 10. Smoke box according to the preceding claim characterized in that the valve-holder part (19) has in its upper part a semi-circular shoulder (36) serving to completely close the opening located on the side of the half-part most small valve (34) when it is in the closed position.
PCT/FR2002/003747 2001-10-31 2002-10-30 Dismountable smoke box with automatic check valve for a heating apparatus WO2003038341A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0114122A FR2831650B1 (en) 2001-10-31 2001-10-31 REMOVABLE SMOKE BOX WITH INTEGRATED AUTOMATIC VALVE FOR A HEATER
FR01/14122 2001-10-31

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WO2003038341A1 true WO2003038341A1 (en) 2003-05-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107575672A (en) * 2017-10-13 2018-01-12 广东美的厨房电器制造有限公司 Smoke exhaust pipe erection joint component, smoke evacuation tube assembly and range hood

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2844339B1 (en) * 2002-09-09 2005-04-15 Fondis Sa DETACHABLE SMOKE BOX, AUTOMATIC CHECK VALVE AND POSTCOMBUSTION CHAMBER FOR HEATING APPARATUS.

Citations (3)

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Publication number Priority date Publication date Assignee Title
FR2192587A5 (en) * 1972-07-11 1974-02-08 Droff Cheminees
FR2522782A1 (en) * 1982-01-11 1983-09-09 Fondis Sa IMPROVEMENT IN THE DIRECT EXHAUST OF SMOKE IN HEATED FIREPLACE HEATING UNITS
FR2539217A2 (en) * 1982-06-30 1984-07-13 Lacour Andre Sleeve with automatically controlled valve for a duct such as the smoke duct of fireplaces with hearths

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2192587A5 (en) * 1972-07-11 1974-02-08 Droff Cheminees
FR2522782A1 (en) * 1982-01-11 1983-09-09 Fondis Sa IMPROVEMENT IN THE DIRECT EXHAUST OF SMOKE IN HEATED FIREPLACE HEATING UNITS
FR2539217A2 (en) * 1982-06-30 1984-07-13 Lacour Andre Sleeve with automatically controlled valve for a duct such as the smoke duct of fireplaces with hearths

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107575672A (en) * 2017-10-13 2018-01-12 广东美的厨房电器制造有限公司 Smoke exhaust pipe erection joint component, smoke evacuation tube assembly and range hood
CN107575672B (en) * 2017-10-13 2023-09-22 广东美的厨房电器制造有限公司 Smoke exhaust pipe installation joint assembly, smoke exhaust pipe assembly and range hood

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FR2831650B1 (en) 2004-04-16
FR2831650A1 (en) 2003-05-02

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