EP1396682B1 - Heizanlage mit abnehmbarer Rauchgasbuchse mit automatischem Ventil und mit Nachverbrennungskammer - Google Patents

Heizanlage mit abnehmbarer Rauchgasbuchse mit automatischem Ventil und mit Nachverbrennungskammer Download PDF

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Publication number
EP1396682B1
EP1396682B1 EP03360096A EP03360096A EP1396682B1 EP 1396682 B1 EP1396682 B1 EP 1396682B1 EP 03360096 A EP03360096 A EP 03360096A EP 03360096 A EP03360096 A EP 03360096A EP 1396682 B1 EP1396682 B1 EP 1396682B1
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EP
European Patent Office
Prior art keywords
heating device
nozzle
smoke box
chamber
post
Prior art date
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Expired - Lifetime
Application number
EP03360096A
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English (en)
French (fr)
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EP1396682A1 (de
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 solid fuel heating apparatus having a built-in automatic flapper removable smoke box.
  • the fire rate When operating a solid fuel heater, the fire rate must be optimal to prevent the escape of a significant portion of the calories in the exhaust gas and flue gas system.
  • the valve is generally constituted by a flap pivoting about an axis whose ends bear on two landing surfaces fixed on the body of the discharge nozzle making the assembly difficult to dismantle.
  • the smoke retardation circuit develops dissociated from the central portion of the exhaust nozzle allowing neither easy access for sweeping, nor rapid disassembly and removal for cleaning and possibly replacement.
  • It also includes a pivoting valve mounted on a support frame, closing or releasing the outlet nozzle.
  • the state of this valve is controlled by a push rod in contact with the access door of the fireplace according to the open state of the latter.
  • the smoke box described consists of three parts assembled together by simple manual installation: a nozzle receiving the exhaust duct, a valve-holder part which is engaged and assembled by a quick assembly means in a chamber nozzle receiving bottom and delimiting therewith an annular heat recovery chamber, and a pivotally mounted flap mounted on the valve member which automatically switches to the open position at the opening of the door.
  • the demountable character is total. Indeed, there are only three parts quickly rising into one another without any tools to form the smoke box.
  • This constitution makes it possible to use monobloc cast iron parts providing solidity, longevity and thermal inertia. We also benefit from a compact assembly in which the evacuation is one with the smoke box.
  • the present invention aims to provide an improvement to this type of smoke boxes, making them even more advantageous. This object is obtained with an apparatus according to claim 1.
  • unburnt products contain mainly carbon monoxide and volatile compounds derived from the distillation of solid fuels, such as wood, heated to high temperatures inside the home. They escape from the firebox into the flue gases, pass through the smoke box and are released into the atmosphere. They are therefore particularly polluting.
  • the improved smoke box of the present invention makes it possible, while retaining the advantages and characteristics mentioned above, to limit polluting discharges into the atmosphere and to increase the efficiency of the heater by recovering a maximum of calories.
  • the improved smoke box has an afterburner chamber in which unburned materials during primary combustion inside the home, are burned in turn.
  • the combustion of solid fuel is more complete and pollutant emissions are greatly reduced.
  • the calories produced during the afterburner are mostly recovered, increasing the efficiency of the heater.
  • the chamber of afterburner can be shaped and arranged in the heat recovery chamber, defined between the walls of the nozzle receiving chamber and the flapper chamber of the smoke box as described above.
  • the post-combustion chamber due to its central position in the upper volume above the upper wall of the firebox, radiates uniformly the heat, which allows an optimal diffusion of the recovered heat.
  • the fume box according to the invention is intended to equip any solid fuel heater, without restricting its scope. It has been particularly studied for a closed fireplace.
  • a fireplace 1 closed hearth in the form of a box 2 closed by a glass door 3.
  • This box 2 defines a combustion chamber 4 constituting the home in which must burning 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 upper wall 9 of the hearth a recovery chamber 11 open towards the front by a front opening in the form, for example, of several front mouths such as 12 evacuating the flow of hot air into the room to be heated.
  • the improved smoke box according to the invention is mounted in the central position of the upper part of the closed hearth 1.
  • nozzle 13 consisting of a one-piece piece of generally cylindrical tubular shape having at its upper end a tubular cylindrical section 14 in which is mounted by fitting a flue gas exhaust duct.
  • the body of the nozzle 13 terminates at its other end by a cylindrical portion 16 of larger diameter delimiting a receiving chamber 17.
  • the two end portions of the nozzle are connected by a central shoulder 18.
  • valve member 19 of generally cylindrical shape. It is mounted in this receiving chamber 17 by a rapid assembly means of the type for example rapid locking said quarter turn or bayonet or any other equivalent means of rapid assembly.
  • This valve member 19 has a tubular body of generally cylindrical shape, the lower edge is shaped as a ring 20 for slowing down and maintaining protruding outwardly peripheral projection.
  • This ring 20 has an alternating structure of solid parts 21 and empty parts 22, for example crenellated followed by notches, among which are receiving slots 25 and insertion slots 26 of larger size.
  • the latter are intended to cooperate, for purposes of support and blocking, with support tabs 27 formed in the lower edge 29 in the ring of the nozzle 13 in the form of transverse stops continuing to protrude inwards.
  • the valve member 19 is continued upwardly by two notch slots 30 which are diametrically opposed and have a rounded bottom, recessed in the upper peripheral edge 31 of the valve member 19, to serve as a bearing surface at the ends 32 of the valve member. the pivot axis 33 of a valve 34.
  • valve holder part 19 Between these notches is formed in this valve holder part 19 a semi-circular shoulder 36 against which the valve 34 comes into closing abutment.
  • the valve 34 is a one-piece disc-shaped cast iron piece in two half-parts 37 and 38 of semicircular contours and of unequal dimensions, of which one part 37 is of larger diameter than the other 38 so as to introduce a dimensional dissymmetry and mass and thus create by gravity an automatic return downward tilting the valve 34 by its heavier half portion 37.
  • the valve 34 is hingedly mounted by a pivoting articulation 39 (FIGS. 3 and 4) pivotally actuated by the hooked end 40 of a thrust rod 41 which passes through its other end the upper front face of the apparatus for abut against the upper cross member of the glass door when it is closed or against a protrusion 42 provided opposite for this purpose.
  • annular recovery chamber 43 in which there is a slowing down of the fumes and an exchange of heat. It communicates from below with the hearth by the crenellated crown 20 and from above with the discharge duct 15 through an exhaust gap 44 existing between the shoulder 18 of the nozzle 13 and the upper edge of the door piece. -clapet 19.
  • this annular recovery chamber can be shaped and fitted into a post-combustion chamber 46 for unburnt materials that pass through this chamber within the combustion fumes.
  • the combustion of the solid fuel, started inside the fireplace, can end in the afterburner chamber where the unburned pollutant compounds are degraded in their turn.
  • the polluting discharges into the atmosphere are thus considerably reduced.
  • the device according to the invention comprises a blown air ramp 47 preferably disposed near the inlet 48 of the afterburner chamber located between the lower edges of the nozzle 13 and the valve holder 19. blower ramp brings fresh air to the proper temperature.
  • the blast ramp (47) can also be advantageously placed in the flue gas box, that is to say in the described structure located in the upper part of the firebox.
  • the ring portion 50 of the tubing has orifices 52 of air distribution, preferably uniformly distributed over its entire length and oriented for example opposite the inlet 48 of the afterburner chamber. These orifices could be oriented differently, especially towards the outlet of the afterburner chamber.
  • the blast ramp 47 makes it possible to provide the inlet of the afterburner chamber with the additional oxygen necessary for the combustion of the unburnt, in the form of air taken outside the heating apparatus and distributed through the orifices 52.
  • the orifices 52 may advantageously be shaped to act as nozzles.
  • the air is blown at the entrance of the afterburner by a natural current or a forced flow using for example a turbine or a fan.
  • the device comprises any means of heating the air distributed by the ramp 47 or a direct heating means of the afterburner chamber 46, comprising for example one or several electrical resistances.
  • the air diffused by the ramp 47 is heated to a sufficient temperature.
  • the connecting portion 51 of the tubing 49 preferably passes inside the combustion chamber 4 of the hearth 2 of the heating apparatus before ending up in the smoke box.
  • the device according to the invention may also further comprise auxiliary heating means, supplementing the heat input from the furnace and the primary combustion occurring in the combustion chamber 4, in order to reach a level of heat. sufficient to generate post-combustion.
  • auxiliary heating means may be required when the heat of the home is insufficient, especially when starting the primary combustion or when the fire decreases.
  • auxiliary heating means for example comprising a temperature sensor placed in the afterburner chamber or upstream thereof in order to detect a possible absence afterburner.
  • the combustion fumes containing the unburned materials pass close to the ring 50 of the air-blast ramp 47 and mix with the hot, oxygen-rich air blown through the orifices 52.
  • the fumes then enter the afterburner chamber 46 through the inlet 48 through the empty portions 22 of the ring 20 and undergo a post-combustion.
  • the afterburner chamber 46 Due to its bent shape, the afterburner chamber 46 causes a slowing of the flow of fumes before their evacuation through the exhaust duct 15. This slowing down allows the afterburner to have the time to be completely realized within the afterburner room. In addition, it makes possible a maximum heat exchange to recover the calories produced by the afterburner.
  • FIG. 4 a particularly advantageous embodiment has been shown in FIG. 4.
  • the shoulder 18 of the nozzle 13 is extended on its underside by a circular rim 53 extending downwards, which thus forms in the exhaust gap 44 a baffle that the fumes are forced to bypass before being able to take the exhaust duct 15.
  • fins 54 may advantageously be provided on the outside of the lower cylindrical portion 16 of the nozzle 13. Preferably, these fins 54 are arranged radially, at regular intervals and substantially vertically. Such fins 54 have been shown in FIGS. 3 and 4.
  • This modification is recommended for reasons of safety, in order to prevent the end of the exhaust duct 15 from being deformed or deteriorated by the flames or the high temperatures prevailing in the afterburner chamber.

Landscapes

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

Claims (18)

  1. Heizanlage für feste Brennstoffe mit einer abnehmbaren Rauchgasbuchse mit integriertem automatischem Klappenventil und einem Feuerungsraum, wobei die Rauchgasbuchse eine Rohrdüse (13) umfasst, die auf einem Teil mit einer Rauchabzugsleitung verbunden und aus zwei zylindrischen Teilen unterschiedlichen Durchmessers, die durch eine Schulter (18) getrennt sind, gebildet sind, von denen ein oberer Teil (14) und ein unterer Teil (16) größeren Durchmessers eine Aufnahmekammer (17) für die anderen Bestandteile bilden, von denen ein automatisches Klappenventil (34) von der Tür des Feuerungsraums (1) in Schließstellung gehalten ist, wenn sich diese in Schließstellung befindet, und sich automatisch bei Öffnen der Tür durch Schwenken nach unten öffnet, wobei in der Heizanlage das tiefe Ende der Düse (13) mit einer Befestigungsstruktur an der oberen Wand des Feuerungsraums (1) versehen ist, die Aufnahmekammer (17) Schnellverbindungsmittel mit einem einstückigen Klappenträger (19) von im Wesentlichen zylindrischer Form aufweist, der mit der Düse (13) eine Ringkammer zur Wärmerückgewinnung bildet, der Klappenträger (19) im Eingriff und in Verbindungshalterung in der Aufnahmekammer (17) durch eine einfache werkzeuglose manuelle Betätigung bringbar ist, das Klappenventil (34) eine Diametralachse (33) aufweist, deren Enden am Achsenendstück ihren Umfangsrand überragen, um an Lagerstufen des Klappenträgers schwenkbar getragen zu werden, und die Feuerungskammer eine Nachverbrennungskammer (46) aufweist, die in der Wärmerückgewinnungskammer (46), die zwischen den Wänden der Aufnahmekammer (17) der Düse und dem Plattenträger (19) definiert ist, ausgebildet und angeordnet ist.
  2. Heinzanlage nach dem vorangehenden Anspruch, dadurch gekennzeichnet, dass eine Zuluftrampe (47) zusätzlichen Sauerstoff, der für die Nachverbrennung erforderlich ist, liefert.
  3. Heizanlage nach dem vorangehenden Anspruch, dadurch gekennzeichnet, dass die Zuluftrampe (47) nahe dem Eintritt (48) der Nachverbrennungskammer angeordnet ist.
  4. Heizanlage nach Anspruch 2, dadurch gekennzeichnet, dass die Zuluftrampe (47) in der Rauchgasbuchse angeordnet ist.
  5. Heizanlage nach einem der vorangehenden Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Zuluftrampe (47) in Form eines Rohrverteilers (49) gebildet ist, dessen einer Teil in einer Krone (50) ausgebildet ist, an das sich ein Anschlussteil (51), das sich nach außerhalb der Heizanlage erstreckt, anschließt.
  6. Heizanlage nach dem vorangehenden Anspruch, dadurch gekennzeichnet, dass das kronenförmige Teil (50) des Rohrverteilers Luftverteilungsöffnungen (52) aufweist.
  7. Heizanlage nach Anspruch 6, dadurch gekennzeichnet, dass die Öffnungen (52) auf der Länge des kronenförmigen Teils (50) regelmäßig verteilt und in Richtung auf den Eintritt (48) der Nachverbrennungskammer (46) ausgerichtet sind.
  8. Heizanlage nach Anspruch 6, dadurch gekennzeichnet, dass die Öffnungen (52) gegen den Ausgang der Nachverbrennungskammer (46) gerichtet sind.
  9. Heizanlage nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die Öffnungen (52) so ausgebildet sind, dass sie eine Art Düsen bilden.
  10. Heizanlage nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, dass sie ein Heizmittel für die von der Rampe verteilte Luft (47) oder ein Heizmittel für die Nachverbrennungskammer (46) aufweist.
  11. Heizanlage nach einem der Ansprüche 4 bis 10, dadurch gekennzeichnet, dass die Anschlussmittel (51) der Zuluftrampe (47) das Innere der Verbrennungskammer (4) des Heizungsraums der Heizanlage durchgreifen, bevor sie in die Rauchgasbuchse eintreten.
  12. Heizanlage gemäß Anspruch 10 oder 11, dadurch gekennzeichnet, dass sie darüber hinaus Sekundärheizmittel aufweist.
  13. Heizanlage nach Anspruch 12, dadurch gekennzeichnet, dass sie ein Regelsystem aufweist, das automatisch die Inbetriebnahme und Stillsetzung des Sekundärheizmittels steuert.
  14. Heizanlage nach einem der Ansprüche 2 bis 13, dadurch gekennzeichnet, dass sie Mittel zur Beschleunigung der Zirkulation der Luft im Innern der Zuluftrampe (47), insbesondere einen Ventilator oder eine Turbine aufweist.
  15. Heizanlage nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Schulter (18) der Düse (13) an ihrem unteren Ende mit einem sich nach unten erstreckenden kreisförmigen Kragen (53) verlängert ist, der eine Schikane bildet, die die Rauchgase zur Umlenkung zwingt, bevor sie die Abzugsleitung (15) erreichen.
  16. Heizanlage nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Rauchgasbuchse an der Außenseite des unteren zylindrischen Teils (16) der Düse (13) Flügel (54) aufweist.
  17. Heizanlage nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Abgasleitung (15) nicht unmittelbar an den Ausgang der Nachverbrennungskammer (46), sondern nach oben versetzt angesetzt ist.
  18. Heizanlage nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Rauchgasbuchse eine Anschlagschulter (55) aufweist, die an der Innenseite des oberen zylindrischen Abschnittes (14) der Düse (13) ausgebildet ist, um die Abgasleitung (15) aufzunehmen.
EP03360096A 2002-09-09 2003-08-26 Heizanlage mit abnehmbarer Rauchgasbuchse mit automatischem Ventil und mit Nachverbrennungskammer Expired - Lifetime EP1396682B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0211143A FR2844339B1 (fr) 2002-09-09 2002-09-09 Boite a fumees demontable, a clapet automatique et a chambre de postcombustion pour appareils de chauffage.
FR0211143 2002-09-09

Publications (2)

Publication Number Publication Date
EP1396682A1 EP1396682A1 (de) 2004-03-10
EP1396682B1 true EP1396682B1 (de) 2006-05-17

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EP03360096A Expired - Lifetime EP1396682B1 (de) 2002-09-09 2003-08-26 Heizanlage mit abnehmbarer Rauchgasbuchse mit automatischem Ventil und mit Nachverbrennungskammer

Country Status (4)

Country Link
EP (1) EP1396682B1 (de)
AT (1) ATE326665T1 (de)
DE (1) DE60305257D1 (de)
FR (1) FR2844339B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2980259A1 (fr) * 2011-09-15 2013-03-22 Oliger France Dispositif de chauffage incorporant des moyens pour reguler le debit des gaz de combustion

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522782B1 (fr) * 1982-01-11 1988-02-12 Fondis Sa Perfectionnement a l'evacuation directe des fumees dans les ensembles de chauffage a foyer ferme
FR2831650B1 (fr) * 2001-10-31 2004-04-16 Fondis Sa Boite a fumees demontables a clapet automatique integre pour un appareil de chauffage

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Publication number Publication date
DE60305257D1 (de) 2006-06-22
FR2844339A1 (fr) 2004-03-12
FR2844339B1 (fr) 2005-04-15
ATE326665T1 (de) 2006-06-15
EP1396682A1 (de) 2004-03-10

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