EP2966358B1 - Installation de chauffe - Google Patents

Installation de chauffe Download PDF

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Publication number
EP2966358B1
EP2966358B1 EP15175043.7A EP15175043A EP2966358B1 EP 2966358 B1 EP2966358 B1 EP 2966358B1 EP 15175043 A EP15175043 A EP 15175043A EP 2966358 B1 EP2966358 B1 EP 2966358B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
air
firing apparatus
arranged distributed
combustion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15175043.7A
Other languages
German (de)
English (en)
Other versions
EP2966358A3 (fr
EP2966358A2 (fr
Inventor
Leopold Bicker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Publication date
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Publication of EP2966358A3 publication Critical patent/EP2966358A3/fr
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Publication of EP2966358B1 publication Critical patent/EP2966358B1/fr
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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
    • F24B5/00—Combustion-air or flue-gas circulation in or around stoves or ranges
    • F24B5/02—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves
    • F24B5/021—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves combustion-air circulation
    • F24B5/023—Supply of primary air for combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F23L9/02—Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air above the fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B80/00—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel
    • F23B80/04—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel by means for guiding the flow of flue gases, e.g. baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B90/00—Combustion methods not related to a particular type of apparatus
    • F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F23L9/06—Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air into the fire bed
    • 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
    • F24B5/00—Combustion-air or flue-gas circulation in or around stoves or ranges
    • F24B5/02—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves
    • F24B5/021—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves combustion-air circulation
    • 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
    • F24B5/00—Combustion-air or flue-gas circulation in or around stoves or ranges
    • F24B5/02—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves
    • F24B5/021—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves combustion-air circulation
    • F24B5/025—Supply of secondary air for completing combustion of fuel
    • 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
    • F24B5/00—Combustion-air or flue-gas circulation in or around stoves or ranges
    • F24B5/02—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves
    • F24B5/021—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves combustion-air circulation
    • F24B5/026—Supply of primary and secondary air for combustion

Definitions

  • the invention relates to a firing device according to the preamble of claim 1.
  • Such a facility is DE 200 11 685 U1 A.
  • air inlets are provided for the supply of primary air, which flows through a preheating chamber and a deflection to a nest of embers, and secondary air.
  • the secondary air flows through the air chamber, rises in the air duct, which runs partially centrally in the combustion chamber, and finally flows through the outlet openings to the nest of embers and into the flame and the area adjacent to it.
  • This also leads to a certain afterburning of the flue gases and thus to a reduction in the CO content of the flue gases.
  • This known combustion device has the disadvantage that the air duct for the secondary air is exposed to very high temperatures, since a considerable part of it runs in the flame zone, and that the secondary air flows out at high speed due to the small total cross-sectional area of the outlet openings, which can lead to a disruption of the flame. In addition, it is hardly possible to supply a sufficient amount of secondary air for the flue gases to burn out almost completely.
  • the aim of the invention is to avoid these disadvantages and to propose a combustion device of the type mentioned at the outset, which is characterized by a simple construction and in which an even more complete combustion is ensured.
  • the temperature load is significantly reduced. It is also very easy to achieve a sufficient air supply, which ensures an even distribution of the air in the combustion chamber. In addition, extensive preheating of the air is also ensured.
  • the features of claim 4 achieve a particularly uniform mixing of the supplied air with the exhaust gases.
  • the nozzles can in particular be directed alternately upwards and downwards.
  • claims 5 and 6 result in a high temperature of the flue gases - especially in the start-up phase of combustion - and a substantially uniform temperature distribution over the cross-section is obtained in the afterburning zone, which ensures a substantially complete burnout of the flue gases and thus a very low CO content. In addition, this also results in a high temperature level of the flue gases for a downstream heat exchanger.
  • the features of claim 7 result in a long afterburning zone despite the small space requirement.
  • the flue gases are guided downwards. If there is enough space available, the flue gases in the afterburning zone can also be guided in other directions, e.g. upwards, without this leading to a deterioration in the exhaust gas values.
  • At least one additional pipe with a height of less than 20 cm, preferably less than 15 cm, within the circumference of the combustion chamber floor plan.
  • Such additional pipes reduce the CO content even further. Since these pipes are relatively short, mechanical stability is not critical and high thermal loads are not a problem.
  • the combustion device has a combustion chamber 6 which is provided on three sides with heat-resistant metal tubes 1 which have an oval cross-section and - as can be seen from Fig.2 can be seen - are provided with outlet openings 13 directed towards the interior of the combustion chamber 6 and inclined at different angles with respect to the horizontal plane for supplying air. Furthermore, the combustion chamber 6 is surrounded by heat-resistant insulation panels 2 and provided with a furnace door 5 through which solid fuel, such as wood, can be supplied.
  • insulation panels 2 are provided on the outside with fireclay panels 3, which in turn are surrounded by an outer shell 4 made of tiles or fireclay.
  • the bottom of the combustion chamber 6 is formed by a heat-resistant plate 9, which together with another plate 12 and simultaneously in connection with the outer shell 4 defines an air chamber 11 for air distribution, which is connected to the room air via an air inlet opening (not shown).
  • the heat-resistant tubes 1 protrude into this air chamber 11, which are lower end have air inlet openings 10.
  • Fig.2 As can be seen, the pipes 1 reach up to the upper limit of the combustion chamber 6, which is limited at the top by a flue gas duct 8.
  • a flue gas duct 8 it is also possible to surround each pipe at the back with a shaped stone that also surrounds the pipe at the top in order to protect it. In this case, a small distance between the upper end of the pipes and the upper limit of the combustion chamber is unavoidable.
  • the flue gas duct 8 is formed by heat-resistant insulation panels 2 and leads to a downdraft 7, via which the flue gases pass downwards to a flue gas opening 14, to which a heat exchanger can be connected. In this way, a long afterburning zone is created despite the small space requirement.
  • the carbon monoxide content can be kept below 10 ppm throughout the main fire phase.
  • the carbon monoxide content during the main fire phase was temporarily so low that it was below the detection limit of the measuring device used; it was Times therefore a maximum of 1 ppm.
  • These short tubes are usually shorter than 10 cm; in the test mentioned, they had a diameter of 50 mm and were 60 mm high (inside the combustion chamber 6). In a larger combustion chamber, four such tubes can be provided.

Landscapes

  • 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)
  • Combustion Of Fluid Fuel (AREA)
  • Solid-Fuel Combustion (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Claims (7)

  1. Foyer, notamment pour combustibles solides, qui comporte une chambre de combustion (6) et une arrivée d'air et qui est pourvu, en-dessous d'un fond d'un réceptacle de combustible, d'une chambre d'air (11) laquelle est reliée à une entrée d'air et partir de laquelle s'étend une dispositif d'alimentation en air s'étendant vers le haut et étant formé par une pluralité de tubes (1) qui mènent vers le haut tout en étant disposés de manière à être répartis sur la majeure partie de la circonférence de la surface de plancher de la chambre de combustion (6), chacun d'entre eux étant en communication avec la chambre d'air (11) et étant pourvu d'une pluralité de sorties (13) qui sont disposées de manière à être réparties sur la hauteur du tube (1) et à faire face à la chambre de combustion (6), caractérisé en ce que l'arrivée d'air est réalisée exclusivement au moyen des tubes (1) disposés de manière à être répartis sur la majeure partie de la circonférence de la surface de plancher de la chambre de combustion (6).
  2. Foyer selon la revendication 1, caractérisé en ce que les tubes (1) sont disposés à manière à être répartis sensiblement sur l'intégralité de la circonférence de la chambre de combustion (6), à l'exception de la zone d'une porte de four.
  3. Foyer selon les revendications 1 ou 2, caractérisé en ce que les tubes (1) s'étendent sensiblement sur toute la hauteur de la chambre de combustion (6) et les sorties (13) sont disposées de manière à être réparties sensiblement sur toute la hauteur des tubes (1).
  4. Foyer selon l'une des revendications 1 à 3, caractérisé en ce que les sorties (13) sont réalisées sous forme de buses ayant différents angles d'orientation par rapport au plan horizontal.
  5. Foyer selon l'une des revendications 1 à 4, caractérisé en ce que la zone supérieure de la chambre de combustion (6) est revêtue de plaques d'isolation (2) .
  6. Foyer selon l'une des revendications 1 à 5, caractérisé en ce que dans la prolongation de la chambre de combustion (6) se trouve une zone de post-combustion qui est revêtue de plaques d'isolation (2).
  7. Foyer selon la revendication 6, caractérisé en ce que ladite zone de post-combustion est formée par un conduit de fumées (8), situé au-dessus la chambre de combustion (6), et par un évent descendant (7) se trouvant dans la prolongation de ce dernier.
EP15175043.7A 2014-07-04 2015-07-02 Installation de chauffe Active EP2966358B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50471/2014A AT515113B1 (de) 2014-07-04 2014-07-04 Feuerungseinrichtung

Publications (3)

Publication Number Publication Date
EP2966358A2 EP2966358A2 (fr) 2016-01-13
EP2966358A3 EP2966358A3 (fr) 2016-09-21
EP2966358B1 true EP2966358B1 (fr) 2024-07-17

Family

ID=53373161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15175043.7A Active EP2966358B1 (fr) 2014-07-04 2015-07-02 Installation de chauffe

Country Status (2)

Country Link
EP (1) EP2966358B1 (fr)
AT (1) AT515113B1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH240716A (de) * 1943-10-04 1946-01-15 Wartburg Wilhelm Von Vorrichtung zur Verbesserung des Heizeffektes von Heizanlagen.
DE1760311U (de) * 1957-03-06 1958-01-23 Rio Lange Rauchgas-verbrenner.
FR2542849B1 (fr) * 1983-03-18 1985-12-13 Telec 2000 Installation de chauffage domestique a foyer ferme utilisant un combustible solide du type bois ou ses derives
IT1173858B (it) * 1983-03-18 1987-06-24 Telec 2000 Srl Soc Impianto di riscaldamento domestico a focolare chiuso utilizzante un combustibile solido tipo legno o suoi derivati
DE3927378A1 (de) 1989-08-19 1991-02-21 Diederichs Hans Joachim Feuerungsvorrichtung
DE29504710U1 (de) * 1995-03-24 1995-05-04 Hock, Hans-Joachim, 67098 Bad Dürkheim Einsatzkörper für Feuerstätten
DE20011685U1 (de) * 2000-07-05 2001-02-22 Bergholz, Günter, 44269 Dortmund Kamineinsatz für häusliche Feuerstätten
DE102008011167A1 (de) * 2008-02-26 2009-08-27 Ulrich Baumann Heizofen zum Beheizen des Raumes eines Wohn-Gebäudes
ITPN20100021U1 (it) * 2010-10-25 2012-04-26 Mcz Group S P A Apparecchiatura di riscaldamento a combustibile solido

Also Published As

Publication number Publication date
EP2966358A3 (fr) 2016-09-21
AT515113B1 (de) 2015-06-15
AT515113A4 (de) 2015-06-15
EP2966358A2 (fr) 2016-01-13

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