EP0559619A1 - Cheminée à air primaire et secondaire - Google Patents

Cheminée à air primaire et secondaire Download PDF

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Publication number
EP0559619A1
EP0559619A1 EP93810140A EP93810140A EP0559619A1 EP 0559619 A1 EP0559619 A1 EP 0559619A1 EP 93810140 A EP93810140 A EP 93810140A EP 93810140 A EP93810140 A EP 93810140A EP 0559619 A1 EP0559619 A1 EP 0559619A1
Authority
EP
European Patent Office
Prior art keywords
air
combustion chamber
combustion
primary
fireplace
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.)
Granted
Application number
EP93810140A
Other languages
German (de)
English (en)
Other versions
EP0559619B1 (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
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0559619A1 publication Critical patent/EP0559619A1/fr
Application granted granted Critical
Publication of EP0559619B1 publication Critical patent/EP0559619B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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, 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.
  • a combustion chamber which is surrounded by side walls and a movable pane or door
  • an ash container below the fire grate
  • at least one supply line for the combustion air to be supplied to the combustion chamber In order to ensure that combustion is as low-pollutant as possible and has a high level of efficiency, it is necessary to control the quantity of combustion air supplied to the combustion chamber and to dose it in accordance with the progressing combustion process.
  • the type of air supply to the firing material is of considerable importance, on the one hand to prevent the flame from extinguishing and on the other hand to avoid unnecessarily rapid combustion with pollution of the flue gases.
  • the object of the invention is to achieve an optimum supply of the combustion air to the combustion chamber in a fireplace in order to achieve a combustion process which is as uniform as possible and low in pollutants and has a high degree of efficiency.
  • combustion air in the form of primary and secondary air can be supplied to the combustion chamber by a controllable throttle device, for which there is a frame provided with an air outlet opening for the primary air, which surrounds the ash container at the top, these outlet openings open into a space below the slotted fire grate, and for the secondary air inside the combustion chamber has at least one vertical channel which opens at its upper end into a transverse channel with obliquely downward outlet openings.
  • the air flow in which on the one hand the primary air is metered from below through the fire grate and on the other hand, preheated, metered secondary air is fed to the combustion chamber from above, the combustion process can be optimized, the efficiency increased and the pollutant content of the exhaust gases reduced.
  • the fireplace 1 according to FIG. 1 contains an outer steel jacket 2 which surrounds firebricks or the like. Refractory material.
  • the combustion chamber 3 is closed on the side and accessible from the front through an opening. This can be covered by a pane 17 held in a pane frame 4 or by a door.
  • This pane frame 4 together with pane 17 can be adjusted in height in a manner known per se and is preferably provided with a counterweight, so that pane 17 can be moved vertically with ease. When using a door, it can be pivotable about a vertical axis.
  • In the lower part 11 there is at least one opening 5 for an air supply which, after being heated by a heat exchanger on the upper side, can exit via two warm air outlet openings 6.
  • a chimney opening 7 serves for the extraction of the flue gases.
  • 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 by hand 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 into the intermediate space 22 essentially horizontally via the slots 32 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 cross channel 34 is provided with downwardly inclined outlet slots, 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 through 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)
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 true EP0559619A1 (fr) 1993-09-08
EP0559619B1 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)

Citations (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
FR2574161A2 (fr) * 1983-03-18 1986-06-06 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
EP0480870A1 (fr) * 1990-10-09 1992-04-15 Martin Frei Cheminée

Patent Citations (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
FR2574161A2 (fr) * 1983-03-18 1986-06-06 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
EP0480870A1 (fr) * 1990-10-09 1992-04-15 Martin Frei Cheminée

Also Published As

Publication number Publication date
EP0559619B1 (fr) 1995-10-25
DE59300803D1 (de) 1995-11-30
ATE129557T1 (de) 1995-11-15

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