EP0882201B1 - Kessel mit kontinuierlicher zufuhr von feinkörnigem festbrennstoff - Google Patents

Kessel mit kontinuierlicher zufuhr von feinkörnigem festbrennstoff Download PDF

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Publication number
EP0882201B1
EP0882201B1 EP97905203A EP97905203A EP0882201B1 EP 0882201 B1 EP0882201 B1 EP 0882201B1 EP 97905203 A EP97905203 A EP 97905203A EP 97905203 A EP97905203 A EP 97905203A EP 0882201 B1 EP0882201 B1 EP 0882201B1
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Prior art keywords
combustion chamber
boiler
fuel
boiler according
air
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Expired - Lifetime
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EP97905203A
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English (en)
French (fr)
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EP0882201A1 (de
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René Tabel
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/34—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side
    • F24H1/36—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side the water chamber including one or more fire tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B1/00—Combustion apparatus using only lump fuel
    • F23B1/30—Combustion apparatus using only lump fuel characterised by the form of combustion chamber
    • F23B1/36—Combustion apparatus using only lump fuel characterised by the form of combustion chamber shaft-type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/16—Over-feed arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/06—Regulating fuel supply conjointly with draught
    • F23N1/065—Regulating fuel supply conjointly with draught using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/04—Measuring pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/02—Ventilators in stacks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2239/00—Fuels
    • F23N2239/02—Solid fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2230/00—Solid fuel fired boiler

Definitions

  • the invention is in the field of heating techniques, and it relates to a boiler with continuous supply of divided solid fuel.
  • boilers including two superimposed floors, the lower one housing a bedroom combustion and the other superior housing an exchanger.
  • a access is provided in the combustion chamber for supply solid fuel, wood in particular.
  • a problem with these boilers is that they do not allow continuous fuel supply of the combustion chamber. Indeed, the contribution in fuel is carried through the loading door, which remains closed during combustion so as not to induce disruptive air circulation; we remember that from in general, the modalities of air circulation in the combustion chambers are essential for the maintenance of combustion, and therefore constitutes a problem to be solved in the case of a continuous supply of solid fuel.
  • combustion devices comprising a closed combustion chamber continuously supplied with solid fuel, including wood waste.
  • solid fuel including wood waste.
  • the smoke produced by combustion is exhausted from the enclosure through a duct, and the heat they give off is withdrawn, using a water exchanger for example.
  • the object of the invention is to propose a boiler with continuous supply of solid fuel divided out, which provides high yield and control reliable combustion and smoke composition, including the operation is carried out naturally in complete safety, and which is of a simple structure, and therefore of a cost competitive cost, both vis-à-vis the devices of the kind of of those using a fuel from another nature.
  • a continuous feed boiler in the fragmented solid fuel of the invention is mainly composed of two superimposed floors, one of which lower, in which is located a vertical extension tubular combustion in which lead to fuel supply means, and including another superior, in which are located a exchanger and a smoke evacuation pipe, both floors communicating via a nozzle for the escape of flames out of the combustion chamber towards the exchanger, under the effect of air circulation means, says primary, from the base of the combustion chamber and axially through its interior space, towards the duct smoke evacuation.
  • the aforementioned organization of the boiler results in high efficiency, in reason for optimization of combustion and offtake of the heat produced, optimization obtained with the means upward ventilation from the base of the combustion up to the smoke exhaust duct, after their passage through the exchanger, ventilation means upward including the organization of the boiler in two superimposed stages communicating by a nozzle of the flames from the combustion, and the tubular configuration of the combustion chamber which is arranged vertically.
  • the means of air circulation are means of depressurizing upper and lower floors from downstream of the floor superior.
  • the combustion chamber is preferably placed in an air intake chamber primary, its base opening into the latter, at the interior of which the intake chamber is introduced from controlled air from outside the boiler, prior to its introduction into the room combustion.
  • Such arrangements in the process of operation of the boiler, constitute means of preheating in contact with the outer wall of the chamber combustion air, primary air introduced into the chamber of admission prior to its introduction into the room combustion.
  • the means of supply in fuel are additionally placed under the dependence on timing means, to compensate by successive short cycles on-off reaction times from the boiler to sudden variations in combustion and pressure (depression) inside the chamber combustion, resulting from a fuel supply in this last.
  • the boiler of the invention further comprises means of air intake, called secondary, inside of the combustion chamber through at least one orifice radial formed at its apex and opening at the base of the nozzle, and means for adjusting the amount of air secondary admitted for adjusting the composition of smoke, and therefore, smoke pollution rates evacuated from the boiler.
  • the nozzle opens in the upper floor in a burn pot which is a means to cause a fallout of the ashes and unconsumed solid particles in the nozzle and prohibit dispersal in the upper ash floor and unburned particles, in particular to limit fouling of the upper floor.
  • the upper floor is advantageously provided at its top with an access door to the exchanger and then to the combustion chamber through the nozzle, to facilitate maintenance of the boiler and including cleaning the exchanger.
  • the exchanger is for example generally formed by a double-walled cylinder arranged around of the burn pot, between which walls extend axially at the exchanger a plurality of tubes for the smoke circulation, the cylinder being provided at its top a refractory cover overhanging the combustion to return flames from the flames to the nozzle escape, the heads and unburnt particles.
  • the tubes are advantageously internally provided with helical cores intended for force the passage of smoke along the wall of the tubes, and thereby promote heat exchange.
  • the said means fuel supply type are "screwless end "
  • the said screw passes through the wall of the combustion to lead, at one of its ends, to near the top of the latter, the other end being intended to communicate with the outlet of a silo containing a reserve of divided solid fuel.
  • the outlet of the silo is preferably closed by means of additional division of the fragmented fuel it contains, so that it does not be admitted in the supply screw that materials whose dimensions do not exceed a threshold determined.
  • the said means of division of the fuel are for example constituted by a plate shutter of the silo outlet provided with a light passage of materials, and by a disc driven in rotation superimposed on the plate and itself provided with a light passage of materials, so that too much material long are sheared between the rotating disc and the stage when they fall out of the silo.
  • the silo is provided a centrifugal arm for stirring the fuel it contains and feeds fuel from the silo walls towards its outlet.
  • a boiler is supplied with solid fuel divided out by means of a screw endless 2 connected to a silo 4.
  • the boiler is overall consisting of an upper stage 6 in which is disposed a water exchanger 8, and a lower stage 10 in which is arranged a vertical tubular combustion chamber 12 to the inside of which the worm 2. opens. Both floors 6 and 10 communicate with each other by through a nozzle 14 through which escape the flames out of the combustion chamber 12 towards the exchanger 8.
  • Combustion is maintained thanks to an upward flow of primary air taken from outside the boiler, which first circulates in a primary air intake chamber 16 surrounding the combustion 12, then axially through the latter 12 from its base towards the nozzle 14, and in a second step, in the form of smoke, through the heating tubes 18 of the exchanger 8 to a pipe 20 for evacuating the fumes of the boiler.
  • the primary air circulation is obtained by means 22, such as turbine, generators of a depression inside upper floors 6 and lower 10, said means 22 being located downstream of the upper floor 6 to create a call for air through the nozzle 14, through the combustion chamber 12 from its base, and through the primary air intake chamber 16 from outside the boiler.
  • the boiler is self-regulating thanks to means of monitoring and controlling its operation: the user has means 72 for selecting a target temperature of the water in the exchanger 8 measured by thermostatic means 70. In the case where the water temperature is below the temperature of setpoint, the thermostatic means 70 control the setting in turbine run 22.
  • a vacuum switch 24 controls, depending of the vacuum prevailing in the air intake chamber 16 primary, the implementation of supply means 2 in fuel from the combustion chamber 12, in the case where said depression is above a determined threshold and preset. When the depression reaches the said threshold, the vacuum switch 24 controls the stopping of means 2 fuel supply.
  • thermostatic means 70 control the stopping of the means 22 for placing under vacuum. Stopping the primary air intake, and therefore the absence of vacuum chamber 16 measured by vacuum switch 24, induced the latter's command 24 to stop the means 2 supply.
  • the nozzle 14 opens into a jar of combustion 28 and is overhung by a cover 30 in refractory material resting on the exchanger 8, for cause ash and solid particles to settle not consumed in the nozzle 14.
  • the opening of the primary air intake valve 38 to the interior of the intake chamber 16 is placed under the dependence on an electromagnet 74, the implementation of which is controlled by said thermostatic means 70 simultaneously with that of the means 22 generators of depression.
  • the valve 38 is shaped as a primary air inlet lock, one of the openings of which is closed by a first flap 76, for presetting the maximum amount of air admissible inside the boiler, and of which the other opening is closed by a second 78 maneuverable flap by said electromagnet 74.
  • the latter 74 constitutes a means for firmly holding the second flap 78 in position opening, to avoid variations in air flow admitted which would result from instability and oscillations flap 78 in the open position under the effect of turbulence, which would undermine the control of the composition of the fumes discharged from the boiler.
  • the vacuum switch 24 is placed inside the airlock 38, in order to get a certain stop means 2 fuel supply in the event of a the electromagnet 74, and therefore in case of closing inoportune of the second part 78 under the effect of its own weight, while the depression means 22 are assets.
  • floors 6 and 10 have an enclosure respectively formed by a box 42 and 44, the boxes 42 and 44 being assembled to each other, by bolting 46 in particular.
  • the combustion chamber 12 is consisting of a rolled sheet 48 inside which is molded a refractory lining 50, the said sheet 48 being then welded to the upper wall of the box 44 of the floor lower 10, so as to be supported by the latter in suspension and thereby clear the opening of the base the combustion chamber 12 to allow the passage of primary air.
  • the combustion chamber 12 could rest on the bottom of lower case 44 by means of a base at the base of the combustion chamber 12 sufficient clearance for air circulation primary.
  • the outlet of the silo is closed by a plate 56 provided with a light 58 for the passage of materials, and by a superimposed disc 60 to the plate 56 and connected to means 64 for driving in rotation, disc 60 itself provided with the same light 58, so that materials cannot be admitted into the worm 2 only on condition that their parceling is sufficient.
  • a centrifugal arm 66 connected to means 64 for rotating drive is provided to drive the materials contained in silo 4 towards its outlet.
  • This arm 66 crenellated and rotated on itself, rolls on a ring gear 68 fitted to silo 4 around the axis of the last.
  • tubular combustion chamber 12 delimits an interior volume, preferably conical, so in particular to get a drop of the fuel in its axial zone rather only along its wall, thanks to which the fuel gets naturally found at the base of the combustion 12. It will also be noted that thanks to these provisions, the combustion chamber 12 is all the more more robust, which is preferable since it where it helps support the burn pot 28.
  • the boiler of the invention is in additionally equipped with an automatic ignition device, comprising means 80,82,84,86 for pulsating a stream of air hot, such as between 480 ° C and 520 ° C, at the base of the combustion chamber 12.
  • This device comprises means 80 for taking air from the outside of the boiler and circulate it through a resistor 82 for heating, then through a conduit 86 to the base of the combustion chamber.
  • the implementation of the blower means 80 is placed under the dependence on timing means 84, so that the hot air is spontaneously kept pulsating at the base of the combustion chamber for a predetermined period, from 1 to 5 minutes for example, when switching on the boiler.
  • the means blowers 80, air heating 82, and timer 84 are located away from the combustion chamber, and even preferably outside the boiler, whereby the said means do not require any special arrangements to preserve them from the heat of the hearth, and finally whereby their manufacturing cost is reduced.
  • the boiler of the invention is of preferably equipped with means for ash removal from the base of the combustion chamber 12, in order to avoid clogging detrimental to the free flow of air through the combustion chamber 12.
  • These means include a squeegee 92 animated back and forth (arrow 1) to make drop the ashes in a tank 88, located at the base of the boiler, through 90 communication lights between the ash tank 88 and the intake chamber air 16, said lights 90 opening in the vicinity of the periphery of the combustion chamber 12.
  • the movement of the squeegee 92 can be generated either manually by the user at his discretion, either and preferably regularly through motor means 94, for through a gear including a rack 96 fitted to the squeegee 92.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Solid-Fuel Combustion (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Claims (13)

  1. Kessel mit kontinuierlicher Zufuhr von zerkleinertem Festbrennstoff, wobei der Kessel hauptsächlich aus zwei übereinander liegenden Stufen (6, 10) besteht, aus einer unteren Stufe (10), in der sich eine rohrförmige Brennkammer mit vertikaler Ausdehnung (12) befindet, in die Brennstoffzuführungsmittel (2, 26) münden, und aus einer anderen, oberen Stufe (6), in der sich ein Tauscher (8) und ein Rauchabzug (20) befinden, wobei beide Stufen (6, 10) über eine Düse (14) verbunden sind, die den Austritt der Flammen aus der Verbrennungskammer (12) zum Tauscher (8) unter Einwirkung von Mitteln (22) zur Luftzirkulation von der Basis der Brennkammer (12) und axial durch ihren unteren Raum zum Rauchabzug (20) ermöglicht,
    dadurch gekennzeichnet, dass
    die Mittel (22) zur Zirkulation von Luft, welche Primärluft genannt wird, zur Erzeugung eines Unterdrucks in den Stufen oben (6) und unten (10) dienen und der oberen Stufe (6) nachgeschaltet sind.
  2. Kessel nach Anspruch 1, dadurch gekennzeichnet, dass die Brennkammer (12) in einer Zuluftkammer (16) zur Zuführung von Primärluft angeordnet ist, wobei ihre Basis in diese mündet und die Primärluft kontrolliert (38) in den Innenraum besagter Zuluftkammer (16) gelangt, bevor sie in die Brennkammer (12) geleitet wird.
  3. Kessel nach Anspruch 2, dadurch gekennzeichnet, dass dieser mit Mitteln zur Selbstregelung seiner Funktion ausgestattet ist, wobei besagte Mittel
    a) Mittel (72) zur Auswahl durch den Anwender von mindestens einer Solltemperatur für das Wasser am Auslauf des Tauschers (8) sowie thermostatische Mittel (70) zur Steuerung des Einschaltens und des Abschaltens der Mittel (22) zur Unterdruckerzeugung, dies zumindest über bzw. unter dem Grenzwert besagter Solltemperatur
    und
    b) ein Vakuumschalter (24) zur Messung des Unterdrucks in der Zuluftkammer (16), welche zur Zuführung von Primärluft dient, und zur Steuerung des Einschaltens und des Abschaltens der Mittel (2) zur Zuführung des Brennstoffs in die Brennkammer (12), dies zumindest über bzw. unter einem bestimmten Grenzwert für die Menge an zugeführter Primärluft,
    beinhalten.
  4. Kessel nach Anspruch 3, dadurch gekennzeichnet, dass die Mittel (2) zur Zuführung von Brennstoff außerdem von Zeitverzögerungsmitteln abhängen.
  5. Kessel nach Anspruch 1, dadurch gekennzeichnet, dass dieser außerdem Mittel (32) zum Einlass von Luft, welche Sekundärluft genannt wird, in den Innenraum der Brennkammer (12) durch mindestens eine im oberen Teil angeordnete radiale Öffnung (34) sowie Mittel (36) zur Einstellung der zugeführten Sekundärluftmenge aufweist.
  6. Kessel nach Anspruch 1, dadurch gekennzeichnet, dass die Düse (14) in der oberen Stufe in einen Brenntopf (28) mündet, der ein Mittel darstellt, das ein Zurückfallen der Asche und der nicht verbrannten Feststoffe in die Düse (14) bewirkt und eine Zerstreuung der Asche und der nicht verbrannten Partikeln in der oberen Stufe verhindert.
  7. Kessel nach Anspruch 6, dadurch gekennzeichnet, dass der Tauscher (8) global aus einem doppelwandigen Zylinder besteht, der um den Brenntopf (28) angeordnet ist, wobei sich axial zum Tauscher (8) eine Vielzahl von Röhren (18) zur Zirkulation der Rauchschwaden zwischen den besagten Wänden erstreckt, wobei der Zylinder oben einen Deckel (30) aus feuerfestem Material aufweist, der den Brenntopf (28) überragt, damit die Flammen, die aus der Düse (14) austreten, die Asche und die nicht verbrannten Partikeln in diese Düse zurückgewiesen werden.
  8. Kessel nach Anspruch 1, dadurch gekennzeichnet, dass die obere Stufe (6) oben mit einer Tür (40) für den Zutritt zum Tauscher (8) und zur Brennkammer (12) durch die Düse (14) versehen ist.
  9. Kessel nach Anspruch 1, wobei besagte Mittel zur Zuführung von Brennstoff als ,,Schneckentyp" ausgeführt sind,
    dadurch gekennzeichnet, dass
    besagte Schnecke (2) durch die Wand der Brennkammer (12) geführt ist und an einem Ende in der Nähe des Oberteils derselben (12) mündet, wobei das andere Ende mit der Mündung eines Silos (4) in Verbindung steht, in dem eine Reserve aus zerkleinertem Festbrennstoff enthalten ist.
  10. Kessel nach Anspruch 9, dadurch gekennzeichnet, dass die Silomündung (4) durch Mittel (56, 58, 60, 62, 64) zur zusätzlichen Zerstückelung des darin enthaltenen zerkleinerten Brennstoffs verschlossen ist, derart gestaltet, dass nur Material in die Zuführungsschnecke (2) gelangen kann, dessen Größe einen bestimmten Grenzwert nicht übersteigt,
  11. Kessel nach Anspruch 10, dadurch gekennzeichnet, dass besagte Mittel zur Zerstückelung des Brennstoffs aus einer Platine (56) zum Verschließen der Silomündung (4), die eine Öffnung (58) zum Materialdurchlass aufweist, bestehen, und aus einer Scheibe (60), die in eine Drehbewegung versetzt (64) wird und die über der Platine (56) angeordnet ist und selbst eine Öffnung (62) zum Materialdurchlass aufweist, derart gestaltet, dass Materialteile, deren Länge zu groß ist, beim Herausfallen aus dem Silo zwischen der sich drehenden Scheibe (60) und der Platine (56) abgeschert werden.
  12. Kessel nach Anspruch 10, dadurch gekennzeichnet, dass das Silo (4) mit einem Zentrifugalarm (66) zum Durchmischen des darin enthaltenen Brennstoffs und zum Leiten des Brennstoffs von den Silowänden (4) bis zu seiner Austrittsöffnung versehen ist.
  13. Kessel nach Anspruch 1, dadurch gekennzeichnet, dass dieser außerdem mit einer automatischen Zündvorrichtung versehen ist, die Mittel (80, 82, 84, 86) zum Blasen eines brennend heißen Luftstroms an der Basis der Brennkammer (12) enthält.
EP97905203A 1996-02-20 1997-02-14 Kessel mit kontinuierlicher zufuhr von feinkörnigem festbrennstoff Expired - Lifetime EP0882201B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9602307 1996-02-20
FR9602307A FR2745072B1 (fr) 1996-02-20 1996-02-20 Chaudiere a alimentation continue en combustible solide parcellise
PCT/FR1997/000280 WO1997031224A1 (fr) 1996-02-20 1997-02-14 Chaudiere a alimentation continue en combustible solide parcellise

Publications (2)

Publication Number Publication Date
EP0882201A1 EP0882201A1 (de) 1998-12-09
EP0882201B1 true EP0882201B1 (de) 2001-01-10

Family

ID=9489546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97905203A Expired - Lifetime EP0882201B1 (de) 1996-02-20 1997-02-14 Kessel mit kontinuierlicher zufuhr von feinkörnigem festbrennstoff

Country Status (6)

Country Link
EP (1) EP0882201B1 (de)
AT (1) ATE198659T1 (de)
DE (1) DE69703875T2 (de)
ES (1) ES2154892T3 (de)
FR (1) FR2745072B1 (de)
WO (1) WO1997031224A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT527552A1 (de) * 2023-08-28 2025-03-15 Eta Heiztechnik Gmbh Heizkessel

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1299081C (zh) * 2002-12-11 2007-02-07 刘毅 蹲式锅炉
FR2857732A1 (fr) * 2003-07-15 2005-01-21 Perge Chaudiere de chauffage a combustible du type a elements individualises
CN100451477C (zh) * 2007-03-28 2009-01-14 刘毅 蹲式两用锅炉
FR2930981B1 (fr) * 2008-05-06 2010-07-30 Sas De Grand Maison Chaudiere pour combustible solide, liquide ou pulverulent
EP2273191A1 (de) * 2009-07-10 2011-01-12 SAS de Grand Maison Heizkessel für festen, flüssigen oder pulverförmigen Brennstoff
CN103822234A (zh) * 2014-03-18 2014-05-28 上海洁也能源技术有限公司 应急炉灶的设计与使用方法
CN106705423A (zh) * 2017-01-24 2017-05-24 山玉珠 直热立式常压热水锅炉
CN109341349B (zh) * 2018-11-15 2023-12-05 重庆长江造型材料（集团）股份有限公司 一种焙烧炉

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR582578A (fr) * 1924-06-06 1924-12-22 Delor Et Thibault Reunis Ets Chaudière poële
FR62385E (fr) * 1952-01-18 1955-06-14 Chaudière semi-tubulaire
CA1144829A (en) * 1980-10-20 1983-04-19 David Murray Solid fuel furnace
FR2500122A1 (en) * 1981-02-17 1982-08-20 Heron Pierre Measured solid fuel feed for boiler - has conveyors supplying feed chute to boiler with feed control inlet door
DE3402787A1 (de) * 1984-01-27 1986-01-02 Wilhelm & Sander GmbH, 3418 Uslar Heizkessel fuer manuelle und/oder automatische beschickung von festen brennstoffen sowie regeleinrichtung zur regelung der heizleistung des heizkessels
DE9113187U1 (de) * 1991-10-23 1992-01-23 Förster, Karlheinz, 8177 Bichl Holzheizkessel, insbesondere Heizungsherd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT527552A1 (de) * 2023-08-28 2025-03-15 Eta Heiztechnik Gmbh Heizkessel

Also Published As

Publication number Publication date
FR2745072B1 (fr) 1998-05-15
ES2154892T3 (es) 2001-04-16
EP0882201A1 (de) 1998-12-09
DE69703875T2 (de) 2001-08-16
FR2745072A1 (fr) 1997-08-22
ATE198659T1 (de) 2001-01-15
DE69703875D1 (de) 2001-02-15
WO1997031224A1 (fr) 1997-08-28

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