EP0530126A2 - Ofen für Holz mit Glasteil und Mittel zu seiner Reinigung - Google Patents

Ofen für Holz mit Glasteil und Mittel zu seiner Reinigung Download PDF

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Publication number
EP0530126A2
EP0530126A2 EP92610059A EP92610059A EP0530126A2 EP 0530126 A2 EP0530126 A2 EP 0530126A2 EP 92610059 A EP92610059 A EP 92610059A EP 92610059 A EP92610059 A EP 92610059A EP 0530126 A2 EP0530126 A2 EP 0530126A2
Authority
EP
European Patent Office
Prior art keywords
air
glass portion
heat exchanger
box
chamber
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
EP92610059A
Other languages
English (en)
French (fr)
Other versions
EP0530126B1 (de
EP0530126A3 (de
Inventor
Henning Krog Iversen
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 EP0530126A2 publication Critical patent/EP0530126A2/de
Publication of EP0530126A3 publication Critical patent/EP0530126A3/de
Application granted granted Critical
Publication of EP0530126B1 publication Critical patent/EP0530126B1/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
    • F24B13/00—Details solely applicable to stoves or ranges burning solid fuels 
    • F24B13/004—Doors specially adapted for stoves or ranges
    • 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

Definitions

  • the invention relates to a woodburing stove with a closed fire box and with a glass portion mounted in the front part of the stove, preferably in the door of the stove, and with a built-in heat exchanger comprising a closed chamber to which air is supplied and led out through a slot at the upper edge of the glass portion to produce a blanket of air which extends along the rear surface of the glass portion.
  • the glass portion suffers a serious drawback, namely that it has a marked tendency to become sullied by soot and layers of condensate. These can be burned firmly into the glass portion so that dangerously corrosive means have to be used to dissolve and remove them.
  • the stove according to the invention in which the chamber is configured in a closed box which is mounted above the glass portion on the inside of the front part, and wherein the flow of air to the chamber is effected via openings directly through the front part, has first and foremost a hitherto-unknown efficiency for reasons of the effective heating of the airflow for the cleaning of the glass portion.
  • the air is led out via a slot in the front of the box, so that after being being sucked into the box it is heated directly by the flue gases by convection, and is thereby forced out at a considerable rate.
  • the intake of air through the heat exchanger consists solely of primary and secondary combustion air, the effect of this air flow can be increased, in that there is hereby achieved not only a completely reliable cleaning of the glass portion, but also a perfect combustion due to the pre-heated air.
  • the flue gases can sweep the box on all sides with the exception of the front, which results in a quick and effective exhange of heat.
  • the path taken by the air through the box can be increased, hereby making the convection heating as efficient as possible.
  • Fig. 1 shows a stove 1 seen from the front.
  • the example shown has a door which is provided with a transparent glass portion 4 which is set into a frame 3.
  • the stove door can be opened and closed, and the fire box can be observed through the glass.
  • the heat exchanger is indicated lying behind the opening 7 by stippled lines.
  • Fig. 2 shows the inside of the stove.
  • the fire box 19 which extends throughout the inside of the stove, is lined with firebricks in a commonly-known manner.
  • the heat exchanger is also seen in the form of a box 12 which is open to the front and provided with fixing plates 10 around the air supply opening, as indicated in fig. 1
  • the actual box 12 is secured to the front 23 of the stove by means of bolts or screws 11.
  • the heat exchanger will be described in more detail later.
  • a plate 17 which has a bent-down rear edge to form a baffle 18 for the flow of flue gas.
  • the flue gas is hereby slowed down and also redirected and led upwards towards a turning plate 20 secured to the rear wall of the stove.
  • This plate leads the upwardly-flowing gases across the upper side of the heat exchanger, and from here back again before they leave the stove through the discharge pipe 6.
  • the heat exchanger itself will now be described with reference to fig. 3.
  • the box 12 is configured as a rectangular box which is relatively flat and, as shown in the drawing, is made up of a shroud and a bottom.
  • an intermediate wall 9 which extends from the open front end to a distance from the rear wall 26.
  • the box is thus divided into an upper chamber 13, which opens out directly at the opening 7, so that the flow of the flue gas through the chamber is led down into a lower chamber 14, the front of which opens out into a funnel-like slot 15, in that the front of the plate has a bent-down portion 16 to form an inclined side wall.
  • the angle of the downwardly-bent part 16 will depend on the height of the fire box 19 in the individual stove, in that it is important that that part of the air stream which constitutes the primary air reaches into the stove in sufficient amounts.
  • the breadth of the slot 15 is chosen in accordance with the extent of the glass portion 4, and will normally be between 5 and 7 mm, i.e. considerably less than the clearance in the chamber 14.
  • a gasket or packing string 27 is inserted between the front piece 23 and the fixing plate 10, to ensure air-tightness.
  • both the lower air valve 5 and the sliding damper 7 can be fully open, hereby leading an ample amount of primary air to the fire.
  • the lower air valve 5 can be closed.
  • the air 25 which is hereafter led through the heat exchanger will be able to deliver the necessary primary and secondary air to the fire.
  • the air 22 is thus preheated, after which it passes down into the lower chamber 14 where the higher air temperature of up to 250°C is achieved when the stove is in operation.
  • the volume of air is hereby doubled, and since the outlet slot 15 has a reduced flow clearance in relation to the chamber 14, the flow rate of the hot air 24 becomes very considerable. This results in the effective flow along the rear surface of the glass portion 4, which is hereby heated to more than 150°C, whereby any risk of sooting-up and condensation is excluded.
  • the outflow of hot air 25 is used as primary and secondary air, whereby the complete combustion is achieved and at the same time the glass portion is effectively held clean.
  • the stove thus has a very high degree of efficiency, while the need for maintenance is minimal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid-Fuel Combustion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Furnace Details (AREA)
EP19920610059 1991-08-30 1992-08-21 Ofen für Holz mit Glasteil und Mittel zu seiner Reinigung Expired - Lifetime EP0530126B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK1535/91 1991-08-30
DK153591A DK171475B1 (da) 1991-08-30 1991-08-30 Brændeove med glasparti og midler til renholdelse af dette

Publications (3)

Publication Number Publication Date
EP0530126A2 true EP0530126A2 (de) 1993-03-03
EP0530126A3 EP0530126A3 (de) 1993-05-12
EP0530126B1 EP0530126B1 (de) 1996-01-17

Family

ID=8105839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920610059 Expired - Lifetime EP0530126B1 (de) 1991-08-30 1992-08-21 Ofen für Holz mit Glasteil und Mittel zu seiner Reinigung

Country Status (3)

Country Link
EP (1) EP0530126B1 (de)
DE (1) DE69207680T2 (de)
DK (1) DK171475B1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2912491A1 (fr) * 2007-02-13 2008-08-15 Labattu Michel Dispositif multi-volets pour le prechauffage de l'air secondaire frontal d'un insert ou d'un poele a bois
AT504892B1 (de) * 2007-10-04 2008-09-15 Windhager Zentralheizung Techn Raumheizeinrichtung
ITRA20090011A1 (it) * 2009-03-24 2010-09-25 Malta Ing Michele Stufa a condensazione
DE202011051990U1 (de) 2011-11-16 2012-01-18 Lars Betzner Kaminofen mit verbessertem Wirkungsgrad
EP2455666A1 (de) 2010-11-17 2012-05-23 József Simkó Kaminofen mit verbessertem Wirkungsgrad
CN104390242A (zh) * 2014-11-10 2015-03-04 昆山富凌能源利用有限公司 二次供氧节能灶芯
EP2213945B1 (de) * 2009-01-31 2020-06-24 Ecco Stove Ltd Verbrennungsvorrichtung und verfahren zur erhöhung der wärmeabfuhr aus einer verbrennungsvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4343289A (en) * 1980-03-21 1982-08-10 Zimmerman Valentine J Wood burning stove
AT377597B (de) * 1981-07-31 1985-04-10 Kent Heating Ltd Ofen
US4683868A (en) * 1986-04-09 1987-08-04 Vermont Castins, Inc. Wood burning stove having glass cleaning system
EP0250239A1 (de) * 1986-06-20 1987-12-23 Parkray Limited Mit festen Brennstoffen beheizbarer Ofen
DE4003779A1 (de) * 1989-02-10 1990-08-16 Rika Metallwaren Ofen, insbesondere kaminofen, mit einem sekundaerluftkanal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4343289A (en) * 1980-03-21 1982-08-10 Zimmerman Valentine J Wood burning stove
AT377597B (de) * 1981-07-31 1985-04-10 Kent Heating Ltd Ofen
US4683868A (en) * 1986-04-09 1987-08-04 Vermont Castins, Inc. Wood burning stove having glass cleaning system
EP0250239A1 (de) * 1986-06-20 1987-12-23 Parkray Limited Mit festen Brennstoffen beheizbarer Ofen
DE4003779A1 (de) * 1989-02-10 1990-08-16 Rika Metallwaren Ofen, insbesondere kaminofen, mit einem sekundaerluftkanal

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2912491A1 (fr) * 2007-02-13 2008-08-15 Labattu Michel Dispositif multi-volets pour le prechauffage de l'air secondaire frontal d'un insert ou d'un poele a bois
AT504892B1 (de) * 2007-10-04 2008-09-15 Windhager Zentralheizung Techn Raumheizeinrichtung
EP2045529A1 (de) 2007-10-04 2009-04-08 Windhager Zentralheizung Technik GmbH Raumheizeinrichtung
EP2213945B1 (de) * 2009-01-31 2020-06-24 Ecco Stove Ltd Verbrennungsvorrichtung und verfahren zur erhöhung der wärmeabfuhr aus einer verbrennungsvorrichtung
ITRA20090011A1 (it) * 2009-03-24 2010-09-25 Malta Ing Michele Stufa a condensazione
EP2455666A1 (de) 2010-11-17 2012-05-23 József Simkó Kaminofen mit verbessertem Wirkungsgrad
DE202011051990U1 (de) 2011-11-16 2012-01-18 Lars Betzner Kaminofen mit verbessertem Wirkungsgrad
CN104390242A (zh) * 2014-11-10 2015-03-04 昆山富凌能源利用有限公司 二次供氧节能灶芯

Also Published As

Publication number Publication date
DK153591D0 (da) 1991-08-30
DE69207680D1 (de) 1996-02-29
DK153591A (da) 1993-03-01
EP0530126B1 (de) 1996-01-17
EP0530126A3 (de) 1993-05-12
DK171475B1 (da) 1996-11-11
DE69207680T2 (de) 1996-08-14

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