EP0559619B1 - Cheminée à air primaire et secondaire - Google Patents

Cheminée à air primaire et secondaire Download PDF

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Publication number
EP0559619B1
EP0559619B1 EP93810140A EP93810140A EP0559619B1 EP 0559619 B1 EP0559619 B1 EP 0559619B1 EP 93810140 A EP93810140 A EP 93810140A EP 93810140 A EP93810140 A EP 93810140A EP 0559619 B1 EP0559619 B1 EP 0559619B1
Authority
EP
European Patent Office
Prior art keywords
air
combustion chamber
combustion
secondary air
primary
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.)
Expired - Lifetime
Application number
EP93810140A
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German (de)
English (en)
Other versions
EP0559619A1 (fr
Inventor
Martin Frei
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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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0559619A1 publication Critical patent/EP0559619A1/fr
Application granted granted Critical
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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 
    • F24B1/19—Supplying combustion-air
    • 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 fireplace with a combustion chamber which is surrounded by side walls and a movable pane or door is present, with an ash container below the fire grate and with at least one supply line for the combustion air to be supplied to the combustion chamber, the combustion air in the form of primary and Secondary air can be supplied to the combustion chamber by a controllable throttle device, the primary air can be supplied from below through a channel of the combustion chamber and at least one vertical channel is available for the secondary air, which opens at its upper end into a transverse channel with an outlet opening.
  • FR-A-1 063 966 shows a furnace with a loading opening accessible from above, with a device for regulating the supply of combustion air to the fireplace.
  • the primary air is supplied to the grate from below through a duct and secondary air enters the interior of the combustion chamber through a duct located outside the combustion chamber at the top through horizontally directed outlet openings.
  • Such a stove is not designed for the generation of hot air for other rooms.
  • the supply of primary or secondary air can be influenced. Since no complete combustion is achieved with such an air duct, the supply of territorial air is provided.
  • FR-A-2 574 161 discloses a heating device in which the combustion air is subdivided by a partial flow penetrating the fire grate and another partial flow flowing upwards in separate channels. Afterburning is provided in the upper part of the heating device by means of an additionally branched-off air flow.
  • EP-A-0 480 870 which has not been previously published, shows a firing system of the type mentioned at the beginning, vertical ducts being arranged outside the combustion chamber and the ash container resting on an intermediate floor at a distance from the fire grate.
  • the object of the invention is to achieve an optimum supply of the combustion air into the combustion chamber in a fireplace of the type mentioned at the outset, in order to achieve a combustion process which is as uniform as possible and low in pollutants and has a high degree of efficiency.
  • the movable disc closes the front of the combustion chamber, for the supply of primary air to the combustion chamber there is a frame provided with air passage openings and surrounding the ash container at the top, the ash container with its outwardly protruding edge rests on the frame and the air passage openings of the frame open into a gap-shaped space below the slotted fire grate, which is arranged at least one vertical channel inside the combustion chamber and at the top ends in a transverse channel with obliquely downward outlet openings for supplying the secondary air from above into the combustion chamber.
  • the combustion process can be optimized, the efficiency can be maintained and the pollutant content can be optimized by the air flow, in which the primary air is metered from below to the fire grate via a gap-shaped space in a calm flow and the preheated, metered secondary air is fed from above to the combustion chamber reduce emissions.
  • slot-like openings 8 are provided on the front below the combustion chamber floor 13, which divide the combustion air into primary and secondary air. Behind these openings 8 there is a throttle device 10 with a slide 14 which has slots 23.
  • the slide 21 can be adjusted either manually or preferably in a time-controlled, motor-linear manner in the direction of the double arrow A in order to regulate the air supply into the combustion chamber 3 in terms of quantity and time.
  • the combustion air is divided into primary air 26 and secondary air 27 and is then fed to the metering device in separate channels 23, 24 of the combustion chamber 3.
  • the primary air 26 passes through a channel 24 into a space 21 and from there into a rectangular frame 16 which is open at the bottom and surrounds the ash container 18 all around. There are holes in the frame 16 or slots 32 are provided so that the primary air 26 can enter a flat, relatively low space 22 between the top of the ash container 18 and the fire grate 25.
  • the fire grate 25 there are several elongated openings 20 through which the primary air 26 is fed to the fireplace from below, as indicated by arrows C.
  • the fire grate 25 is designed such that its elongated openings 20 are delimited by square ribs 28 in the upright position.
  • the lumpy fuel for example wood, lies on top of the rib edges.
  • the space 21 in which the channel 24 for the primary air 26 opens is closed and sealed against the outside air.
  • the primary air 26 is forced to flow the frame 16 through the slots 32 essentially horizontally into the intermediate space 22 in order to subsequently reach the fireplace via the openings 20.
  • the ash container 18, which is open at the top, rests with its outwardly projecting edge on a cranked rag of the frame 16.
  • the supply of secondary air 27 for the combustion also takes place via the throttle device 10.
  • the secondary air 27 is conducted via two lateral channels 23 into vertical, vertical channels 30 which are arranged inside the combustion chamber 3. These two vertical channels 30 arranged near the front are connected to one another at their upper end by a horizontal transverse channel 34.
  • the transverse channel 34 is provided with outlet slots which are inclined downwards and from which the secondary air 27 can flow to the combustion chamber 3 from above. At least some of the slots arranged in the transverse channel can be directed against the pane 17 in order to direct the flue gases away from this pane 17. Since the vertical channels 30 and the transverse channel are inside the combustion chamber 3, the secondary air is in front of the Flowing out of the slots of the transverse channel 34 preheated, which favors the combustion process. Instead of two vertical channels 30, further vertical channels 30 could be present in the rear combustion chamber area. In the closed and sealed state of the panes 17 or the door, the combustion air is supplied exclusively by the throttle device (10) which can be metered by means of the slide 14, bypassing the opening which can be covered by the pane 17.
  • the opening cross sections of the throttle device 10 can be mechanically adapted to the chimney draft or the opening cross sections of the throttle device 10 for the combustion air can be regulated by electrical or electronic adjusting elements and thus adapted to the respective chimney draft.

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)
  • Treating Waste Gases (AREA)

Claims (4)

  1. Cheminée fermé comprenant une chambre de combustion (3) qui est entourée par des parois latérales et une vitre (14) ou une porte mobile, un cendrier disposé en dessous de la grille de foyer (25) et au moins une conduite d'amenée (23,24) pour l'air de combustion à amener à la chambre de combustion (3), l'air de combustion pouvant être amené à la chambre de combustion (3) sous la forme d'air primaire et secondaire (26,27) à travers un dispositif d'étranglement (10) réglable, l'air primaire (26) pouvant être amené depuis le bas par un canal à la chambre de combustion (3) et l'air secondaire (27) étant amené par au moins un canal vertical (30) dont l'extrémité supérieure débouche dans un canal transversal (34) avec ouverture de sortie, caractérisé par le fait que la vitre mobile (14) ferme frontalement la chambre de combustion (3), que pour l'amenée de l'air primaire à la chambre de combustion (3), il est prévu un cadre (16) muni d'ouvertures de passage d'air (32) et entourant le cendrier (18) dans le haut, que le cendrier (18) repose sur le cadre (16) par son bord faisant saillie vers l'extérieur, que les ouvertures de passage d'air (32) du cadre (16) débouchent dans un espace intermédiaire (22) en forme de fente en dessous de la grille de foyer (25) fendue, que le canal vertical (30) au nombre d'au moins un est disposé à l'intérieur de la chambre de combustion (3) et débouche, à l'extrémité supérieure, dans un canal transversal (34) avec des ouvertures de sortie dirigées de façon oblique vers le bas, en vue de l'amenée de l'air secondaire depuis le haut dans la chambre de combustion (3).
  2. Cheminée fermé suivant la revendication 1, caractérisé par le fait qu'il comprend deux canaux verticaux (30) disposés latéralement, à proximité de la façade, ces canaux étant reliés entre eux dans le haut par le canal transversal (34).
  3. Cheminée fermé suivant la revendication 1 ou 2, caractérisé par le fait que quelques unes au moins des ouvertures de sortie disposées dans le canal transversal (34) sont réalisées sous la forme de fentes dirigées contre la vitre (17).
  4. Cheminée fermé suivant l'une des revendications 1 à 3, caractérisé par le fait que les ouvertures oblongues (20) de la grille de foyer (25) fendue sont délimitées par des barreaux (28) carrés disposés de chant.
EP93810140A 1992-03-05 1993-02-26 Cheminée à air primaire et secondaire Expired - Lifetime EP0559619B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH699/92 1992-03-05
CH69992 1992-03-05

Publications (2)

Publication Number Publication Date
EP0559619A1 EP0559619A1 (fr) 1993-09-08
EP0559619B1 true EP0559619B1 (fr) 1995-10-25

Family

ID=4193109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810140A Expired - Lifetime EP0559619B1 (fr) 1992-03-05 1993-02-26 Cheminée à air primaire et secondaire

Country Status (3)

Country Link
EP (1) EP0559619B1 (fr)
AT (1) ATE129557T1 (fr)
DE (1) DE59300803D1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1063966A (fr) * 1952-08-14 1954-05-10 Fabrication D App De Chauffage Appareil de chauffage à régime de combustion réglable
GB784172A (en) * 1955-05-18 1957-10-02 James Smellie Ltd Improvements relating to domestic firegrates
FR2574161B2 (fr) * 1983-03-18 1988-05-06 Telec 2000 Installation de chauffage domestique a foyer ferme utilisant un combustible solide du type bois ou ses derives
US4856491A (en) * 1988-03-25 1989-08-15 Vermont Castings, Inc. High efficiency solid fuel burning stove
EP0480870B1 (fr) * 1990-10-09 1994-07-06 Martin Frei Cheminée

Also Published As

Publication number Publication date
DE59300803D1 (de) 1995-11-30
ATE129557T1 (de) 1995-11-15
EP0559619A1 (fr) 1993-09-08

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