EP0361448B1 - Brennvorrichtung für Holz - Google Patents

Brennvorrichtung für Holz Download PDF

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Publication number
EP0361448B1
EP0361448B1 EP89117864A EP89117864A EP0361448B1 EP 0361448 B1 EP0361448 B1 EP 0361448B1 EP 89117864 A EP89117864 A EP 89117864A EP 89117864 A EP89117864 A EP 89117864A EP 0361448 B1 EP0361448 B1 EP 0361448B1
Authority
EP
European Patent Office
Prior art keywords
wall
slot
rear wall
area
door
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
EP89117864A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0361448A3 (en
EP0361448A2 (de
Inventor
Heribert Posch
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
Priority to AT89117864T priority Critical patent/ATE75020T1/de
Publication of EP0361448A2 publication Critical patent/EP0361448A2/de
Publication of EP0361448A3 publication Critical patent/EP0361448A3/de
Application granted granted Critical
Publication of EP0361448B1 publication Critical patent/EP0361448B1/de
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
    • 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
    • F24B13/00—Details solely applicable to stoves or ranges burning solid fuels 
    • F24B13/004—Doors specially adapted for stoves or ranges

Definitions

  • the invention relates to a burning device for burning wood, in particular as a basic oven, as an insert oven or as another type of burning device, consisting of a front wall with a fuel filler opening and a fresh air inlet opening, from two side walls adjoining the front wall, from one rear to the two Side walls adjoining the rear wall, from a bottom wall, from a ceiling wall and from a door for the fuel filler opening as well as with a fresh air inlet opening with a control element for adjusting the effective cross section of the fresh air inlet opening and with a flue gas outlet.
  • a burning device for burning wood in particular as a basic oven, as an insert oven or as another type of burning device, consisting of a front wall with a fuel filler opening and a fresh air inlet opening, from two side walls adjoining the front wall, from one rear to the two Side walls adjoining the rear wall, from a bottom wall, from a ceiling wall and from a door for the fuel filler opening as well as with a fresh air inlet opening with a control
  • Insert stoves are ready-to-use stoves, around which only the drafts need to be formed while the actual tile part is being bricked up.
  • Basic stoves are stoves to be bricked up from individual firebricks during the construction of the actual tile part.
  • the stove builder adheres to conventional design concepts.
  • Basic ovens can also be set up free-standing and used directly as an oven, especially if they are metal-coated.
  • the lower end of the space accessible via the fuel filler opening namely the actual combustion space
  • the fresh air inlet opening is at least usually arranged so that the fresh air passes from below through the grate upwards, while the flue gas is discharged from the top of the combustion chamber.
  • An ash pan is usually provided in the space below the grate.
  • Both the fuel filler opening and the fresh air inlet opening are closed by doors, a control element, generally as a slide, being provided on the door in the region of the fresh air inlet opening.
  • the invention is therefore based on the object of designing the combustion device initially described with regard to its type in such a way that a considerably better emission behavior is achieved, if possible even while improving the combustion efficiency.
  • care must be taken to ensure that the new design concept permits simple installation of the device; beyond that, however, is the primary goal make sure that the operability for guiding the burning behavior and thus the emission behavior is very simple and in no way overwhelms the user.
  • the fuel gases passed through it become not cooled noticeably so that they do not lose their ignition temperature.
  • the air mentioned is supplied via the only opening in the front wall, the air supplied there being virtually automatically divided into primary and secondary air.
  • the secondary air is the air that is fed into the slot, while the primary air is the air that, with the help of the fuel, burns or gasifies in the combustion chamber.
  • the burning device according to the invention is intended for burning wood, no grating is required as the lower end of the combustion chamber; the few ashes that accumulate can be scooped out of the device at intervals of weeks to months. The temporary presence of the ash in the device does not affect the burning behavior in any way based on the experience gained.
  • this channel is a cross-sectionally closed channel in the ceiling wall and in the region of the rear wall located above the slot. This ensures that the air is properly guided under the influence of the chimney draft and, which is at least equally important, an effective heating of the air.
  • the wall thickness of the area above the slot in the rear wall should be thinner than the wall thickness of the area below the slot in the rear wall .
  • a rounded design of the inlet edges also has a positive effect the slot, which should also be provided so that the fuel gas / exhaust gas mixture can better enter the slot.
  • Optimal burning conditions can be achieved if the slot in the rear wall is provided at about a third of the height of the combustion chamber and thus the rear wall.
  • the control element should be provided in the door at a maximum of 20% of the height of the combustion chamber. Both measures ensure an excellent automatic division of the air entering through the fresh air inlet opening of the door into the primary part necessary for pre-burning in the combustion chamber and into the secondary part required in the area of the slot for afterburning.
  • the only control element to be provided in the area of the door should be designed in such a way that the air inlet opening to be changed by it in its free opening cross-section during the closing movement of the control element first in its lower area and only at further closing movement is also closed in its upper region, the upper region being intended for the secondary and the lower region for the primary air.
  • the control element should be designed such that in the end-closed position - with the lower region of the air inlet opening completely closed - at least 10% of the upper region of the air inlet opening is still kept open.
  • the area of the rear wall located above the slot is divided in the height direction in the plane of the air supply duct.
  • the channel can then be realized by appropriately placed cutouts in one part, and no complex production of a mold for the production of a hollow body is required.
  • the part of the air supply duct located in the rear wall be expanded in the width direction of the rear wall from top to bottom, whereby it extends in the area of the slot over the entire width of the rear wall and thus extends over the entire length of the slot.
  • Such an expanded design of the air supply duct allows a stable production of the rear wall in the upper region with a small width extension of the duct and in the lower region with a continuous extension of the duct over the entire width, thus also an excellent guidance of the air, without thereby reducing the manufacturability complicate.
  • the part of the air supply duct located in the ceiling wall should consist of a plurality of duct sections lying next to one another, based on the wall thickness of the ceiling wall is arranged relatively close to the inner surface of the ceiling wall facing the combustion chamber. In this way, a very fast and intensive heat transfer from the combustion chamber to the air is possible and, moreover, the stability of the ceiling wall is not impaired because there is no very wide channel, but rather several adjacent channel sections.
  • the device Seen in the circumferential direction, the device consists of a front wall 1, two side walls 2, 3 and a rear wall 4 and additionally of a bottom wall 5 and a top wall 6.
  • a relatively large opening 7 which represents the fuel fill opening .
  • a slot 8 is preferably provided in relatively exactly one third of the height of the rear wall 6, which slot extends completely over the width of the rear wall 4.
  • This slot 8 can be seen particularly clearly in FIG. 1 and narrows starting from the inner surface 9 of the rear wall 4 in the depth direction of the device to a narrowest width, after which the slot 8 widens again. Due to the initially narrowed and finally widened design of the slot 8, this can be referred to as designed in the manner of a Venturi nozzle.
  • an air supply channel 10 a In the area of the narrowest width or starting from the inside of the device just behind the narrowest width opens into the Slot 8 an air supply channel 10 a.
  • This channel 10 runs in the vertical direction of the combustion chamber enclosed by the device walls through the area 4a of the rear wall 4 located above the slot 8 to the top wall 6, continues in the direction of the front wall 1 and in this direction a short distance downwards.
  • the air supply duct 10 consists of several sections 10a, 10b, 10C, which run next to one another in the example shown. These sections lie relatively close to the inner surface 6a of the ceiling wall 6 facing the combustion chamber.
  • the division of the channel 10 in the area of the ceiling wall 6 into individual sections 10a to 10c serves to stabilize the ceiling wall 6; because the sections of the ceiling wall 6 which are relatively short in the width direction of the device are not at risk of breakage as a single corresponding wall element provided a channel running in the width direction is provided, due to the relatively cold air carried there, in contrast to the high temperature in the combustion chamber.
  • the three sections each open out into a channel that is continuous in the width direction.
  • this channel which is continuous in the width direction, is approximately half as wide as the combustion chamber, while on the rear side the channel width is widened to the full width of the combustion chamber in the region of the slot 8, as can be clearly seen from FIG. 4.
  • webs 11 are provided, which diverge in the direction of the slot 8 and serve a uniform distribution and guidance of the air.
  • the rear wall 4 consists in its Be located above the slot 8 rich 4a of two parts, namely a part facing the combustion chamber and an outwardly directed part (FIG. 4), the parting plane being set such that the webs 11 provided on the outwardly directed part rest against the rear of the part facing the combustion chamber. In this way, the region 4a of the rear wall 4 located above the slot 8 is easy to produce.
  • a recess 12 tapering towards the rear is provided, which extends from the combustion chamber side to the rear of the area 4b.
  • a stone 13 which fills it completely is inserted and can be pulled out in the direction of the combustion chamber in order to be accessible from the combustion chamber to the space behind the area 4b of the rear wall 4, for example the lower section of a heating register or an afterburning chamber do.
  • the opening 7 is assigned a door 14, in which only one opening 15 is provided for the supply of fresh air, which can be partially or completely closed by means of a special control element 16.
  • the door 14 to be attached to the outside of the front wall 1 of the combustion device and shown in cross section in FIG. 5 serves to keep the combustion chamber closed and thus to completely close the fuel filler opening 7 provided in the front wall 1.
  • This opening 7 should be in view of a good one Accessibility of the combustion chamber should be designed as large as possible, ie said opening 7 should, as far as possible, the size of the area between the inner sides of the two opposite side walls 2, 3 and the upper inner surface of the bottom wall 5 and the inner surface 6a facing downwards Ceiling wall 6 correspond.
  • the fresh air inlet opening 15 provided in the door 14 is arranged there in accordance with the concept according to the invention at a maximum of 20% of the height of the combustion chamber.
  • a control element in the form of, for example, a slide 16 is assigned to this opening 15.
  • the opening 15 and the slider 16 are matched to one another in terms of their design so that at the beginning of the closing movement of the slider 16, this initially closes only the lower part of the opening 15 and only partially closes the upper part of the opening 15 with a further closing movement.
  • the opening 15 and the slide 16 are also matched to one another in such a way that at the end of the closing movement the lower part of the opening 15 is completely closed, but the upper part of the opening 15 is still kept partially open.
  • a lateral division of the opening 15 can of course also be provided, which however requires a slide design different from that shown.
  • a pivoting flap can of course also be provided, which, however, must be designed such that it also closes the lower part of the opening 15 and only later parts of the upper part of the opening 15.
  • combustion chamber height 38 cm combustion chamber width 35 cm, combustion chamber depth 40 cm, height extension of the slot 2.5 cm, Height of the slot above the bottom wall 8 cm, inner protrusion of the area of the rear wall located under the slot opposite the area above it 2 cm, cross section of the air supply duct in the area of the opening into the slot 35 cm2 cross section of the air inlet opening in the door 70 cm2, 40 cm2 for the primary air and 30 cm2 for the secondary air, rounding radius of the upper inlet edge of the slot 12 cm, rounding radius of the lower inlet edge 12.5 cm, rounding radius of the upper and lower outlet edge of the slot 4 cm.
  • the door 14 shown in Fig. 5 is designed as a double chamber door.
  • two chambers 17 and 18 are formed separately from one another by means of a partition 19.
  • the partition 19 extends from the upper region of the inner rear wall surface 20 of the door and extends into the region of the fresh air inlet opening 15 in the front wall of the door 14.
  • the two chambers 17, 18 each have an opening 21 and 22 respectively rear door area in connection with the slot 8 and the upper area of the combustion chamber.
  • the air entering through the opening 15 into primary and secondary air is divided by means of the partition 19.
  • the burning device according to the invention can easily be both an insert furnace around which a stove setter builds the tile part of a tile stove while leaving the necessary air guiding spaces, as well as a basic stove, regardless of whether it is prefabricated wholly or partly by the factory or built from individual parts on site by a stove setter, as well as a boiler, in or around which the necessary water or air ducts with associated heat exchanger devices would then have to be installed, but which do not affect the inventive concept of the actual burning part and in turn are not affected by this.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid-Fuel Combustion (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
EP89117864A 1988-09-29 1989-09-27 Brennvorrichtung für Holz Expired - Lifetime EP0361448B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89117864T ATE75020T1 (de) 1988-09-29 1989-09-27 Brennvorrichtung fuer holz.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3833088A DE3833088C1 (zh) 1988-09-29 1988-09-29
DE3833088 1988-09-29

Publications (3)

Publication Number Publication Date
EP0361448A2 EP0361448A2 (de) 1990-04-04
EP0361448A3 EP0361448A3 (en) 1990-12-27
EP0361448B1 true EP0361448B1 (de) 1992-04-15

Family

ID=6363983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117864A Expired - Lifetime EP0361448B1 (de) 1988-09-29 1989-09-27 Brennvorrichtung für Holz

Country Status (3)

Country Link
EP (1) EP0361448B1 (zh)
AT (1) ATE75020T1 (zh)
DE (1) DE3833088C1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101101C2 (de) * 1991-01-16 2002-01-17 Manfred Schmid Heizvorrichtung für feste Brennstoffe mit Zusatzluftzuführung
DE19911998C2 (de) * 1999-03-17 2001-07-26 Cera Design By Britta Von Tasc Ofen, insbesondere Kamin

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE723181C (de) * 1938-07-20 1942-07-30 Wilhelm Haase Fuellschachtfeuerung mit Planrost und mit unterem Abbrand, insbesondere fuer Kleinfeuerungen und Heizoefen
CH219376A (fr) * 1941-02-17 1942-02-15 Mailler Rene Chaudière.
DE1789730U (de) * 1959-03-20 1959-06-04 Kueppersbusch Herd oder ofen.
EP0081028B1 (de) * 1981-12-07 1986-02-26 Theo Dipl.-Innenarch. Haas Ofen
DE8706650U1 (de) * 1987-02-18 1987-07-16 Brunner, Ulrich, 8382 Arnstorf Feuerungsofen mit einer automatischen Steuerung der Verbrennungsluftzufuhr

Also Published As

Publication number Publication date
EP0361448A3 (en) 1990-12-27
ATE75020T1 (de) 1992-05-15
EP0361448A2 (de) 1990-04-04
DE3833088C1 (zh) 1990-05-10

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