EP0029783A1 - Vorrichtung zur Wiedergewinnung der Wärme für offene Kamine - Google Patents

Vorrichtung zur Wiedergewinnung der Wärme für offene Kamine Download PDF

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Publication number
EP0029783A1
EP0029783A1 EP80401668A EP80401668A EP0029783A1 EP 0029783 A1 EP0029783 A1 EP 0029783A1 EP 80401668 A EP80401668 A EP 80401668A EP 80401668 A EP80401668 A EP 80401668A EP 0029783 A1 EP0029783 A1 EP 0029783A1
Authority
EP
European Patent Office
Prior art keywords
pipes
enclosure
air
hearth
tubes
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
EP80401668A
Other languages
English (en)
French (fr)
Other versions
EP0029783B1 (de
Inventor
Henri Nisole
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.)
GRANIFEU SA
Original Assignee
GRANIFEU SA
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 GRANIFEU SA filed Critical GRANIFEU SA
Priority to AT80401668T priority Critical patent/ATE12306T1/de
Publication of EP0029783A1 publication Critical patent/EP0029783A1/de
Application granted granted Critical
Publication of EP0029783B1 publication Critical patent/EP0029783B1/de
Expired 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
    • F24B1/188—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas  
    • F24B1/1885—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas   the heat exchange medium being air only
    • F24B1/1886—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas   the heat exchange medium being air only the heat exchanger comprising only tubular air ducts within the fire

Definitions

  • the present invention relates to a hot air heating device associated with an open hearth fireplace.
  • Heat recovery devices in open fireplaces for heating water or air are already known.
  • air heating devices mention may be made of those which are described in the French patents published under No: 2 270 527, 2 273 238 and 2 341 821.
  • These devices all consist of an enclosure which surrounds the hearth and in which the air to be heated circulates, the wall of the enclosure adjacent to the hearth being heated by flames and smoke and serving to heat the air circulating in the enclosure.
  • the temperature of the flames decreases very rapidly as it moves away from the surface of the fuel and that the temperature of the smoke also decreases rapidly by mixing with the excess air passing through the chimney without participating in the combustion.
  • the top of the bottom plate of a chimney does not heat the air beyond about 60 °.
  • An object of the present invention to provide a device for obtaining at the outlet of hot air significantly higher temperatures.
  • a device comprising an enclosure optionally having a face serving as a hearth plate and a vertical face serving as a bottom plate, through which air to be heated circulates, again with inside the enclosure, a plurality of pipes with a generally vertical orientation and continuously rising, said pipes emerging, at the bottom, through the bottom plate at the level of the wood and / or burning embers and, at the top, in the smoke duct, the top of said enclosure allowing the volume of the hearth to communicate directly with the smoke duct, said pipes having a relatively small section for sucking in combustible combustible gases emitted by wood or embers, to the exclusion practically air not participating in combustion.
  • the lower outlets of the pipes are distributed in height and concealment means are provided to selectively close, according to their levels, the outlets of certain pipes on demand.
  • the open fireplace in FIG. 1 conventionally comprises a hearth plate 1 on which rest the andirons 2 supporting flaming logs 3, a backfire 4, legs 5, a lintel 6, a hood 7 and a smoke duct 8.
  • the counter-fire 4 is, in fact, the front wall of an enclosure 9 which has the shape of a box of vertical section in the shape of an L, the base of the L extending under at least part of the hearth plate 1 and the leg of the L rising to the hood 7.
  • the enclosure 9 has, at the bottom, an air intake 10 allowing fresh air to enter, taken outside or in the room containing the chimney and , at the top, air outlets 11 delivering the heated air either in the same room, for example through the hood, or in another room.
  • the upper plate 12 of the enclosure 9 is pierced with two openings 11 to which sleeves are connected 13 opening onto the sides of the hood 7.
  • pipes 14 the general orientation of which is vertical, the lower ends of which are welded at the bottom of the back-up plate 45 and the upper ends of which are welded to the plate 12.
  • the plates 4 and 12 are drilled opposite the pipes 14.
  • the pipes have a diameter of the order of 3 cm, for example.
  • the pipes 14 form sorts of diversions with a small section relative to the main focus. It follows first of all that the combustible gases, on fire, emitted by the wood, can also rise by burning in the pipes 14. This is what actually happens as shown by the flames 15 rushing into the openings at the base of the plate 4. As the quantity of air admitted into each pipe 14 is limited by the narrow section of the pipe, the hot gases rising in each pipe are not stirred with an excess of cold air not participating on combustion. So the temperature in the pipes 14 is, for the same altitude, higher than on the plate 4. Of course, the plate 4 transfers heat from the hearth to the interior of the enclosure 9, as in the known devices.
  • the ratio of the surface area of a pipe to its volume is maximum so that the transfer of heat takes place towards the air which passes through the enclosure 9, with a much better efficiency than in a device not comprising as transfer surface as the plate 4 and the part located under the hearth plate.
  • pipe inlets 14 are provided at different heights and, as shown in FIG. 4, sliding closure plates 16, pierced with openings 17 suitably arranged, making it possible to select the pipes 14 to be opened. These means allow, depending on the height of the pile of logs in flame, to obtain the best yield.
  • the section of the enclosure can be relatively flat, while making it possible to obtain a sufficient flow of hot air.

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)
  • Gasification And Melting Of Waste (AREA)
EP80401668A 1979-11-27 1980-11-20 Vorrichtung zur Wiedergewinnung der Wärme für offene Kamine Expired EP0029783B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80401668T ATE12306T1 (de) 1979-11-27 1980-11-20 Vorrichtung zur wiedergewinnung der waerme fuer offene kamine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7929619A FR2472721A1 (fr) 1979-11-27 1979-11-27 Dispositif de recuperation de calories dans les cheminees a foyer ouvert
FR7929619 1979-11-27

Publications (2)

Publication Number Publication Date
EP0029783A1 true EP0029783A1 (de) 1981-06-03
EP0029783B1 EP0029783B1 (de) 1985-03-20

Family

ID=9232307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80401668A Expired EP0029783B1 (de) 1979-11-27 1980-11-20 Vorrichtung zur Wiedergewinnung der Wärme für offene Kamine

Country Status (4)

Country Link
EP (1) EP0029783B1 (de)
AT (1) ATE12306T1 (de)
DE (1) DE3070342D1 (de)
FR (1) FR2472721A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067383A1 (de) * 1981-06-15 1982-12-22 Hans Aeberhard Heiz-Cheminée mit einer Öffnung zu einem Feuerraum
GB2213577A (en) * 1987-12-11 1989-08-16 Beaumont John L Ltd Convection space heating arrangement for a flame effect gas fire
FR2660052A1 (fr) * 1990-03-22 1991-09-27 David Jean Pierre Chaudiere de cheminee a air pulse et tirage tridirectionnel utilisant une piece de fond de foyer parabolique.
FR3012576A1 (fr) * 2013-10-31 2015-05-01 Jean-Michel Delage Dispositif de chauffage de type chaudiere et procede de fonctionnement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510725A1 (fr) * 1981-02-26 1983-02-04 Vergnes Jacques Dispositif pour recuperer la chaleur notamment dans un atre

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB116367A (en) * 1917-06-14 1918-06-13 William Wallace Wiltshire Improvements in Domestic Fire Attachments for Heating Air.
US2143772A (en) * 1938-05-17 1939-01-10 Hannula Gust Heating unit for fireplaces
GB732992A (en) * 1952-10-17 1955-07-06 Frantisek Hlavka Improved heating stove
US2832332A (en) * 1953-12-22 1958-04-29 Hugo C Johnson Combination fireplace and furnace
FR2294403A1 (fr) * 1974-12-12 1976-07-09 Lambert Jean Atre-chaudiere combinant le chauffage au bois et la ventilation mecanique controlee double flux
FR2327492A2 (fr) * 1975-10-07 1977-05-06 Julie Clement Amenagement de cheminee du type " campagnard "

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB116367A (en) * 1917-06-14 1918-06-13 William Wallace Wiltshire Improvements in Domestic Fire Attachments for Heating Air.
US2143772A (en) * 1938-05-17 1939-01-10 Hannula Gust Heating unit for fireplaces
GB732992A (en) * 1952-10-17 1955-07-06 Frantisek Hlavka Improved heating stove
US2832332A (en) * 1953-12-22 1958-04-29 Hugo C Johnson Combination fireplace and furnace
FR2294403A1 (fr) * 1974-12-12 1976-07-09 Lambert Jean Atre-chaudiere combinant le chauffage au bois et la ventilation mecanique controlee double flux
FR2327492A2 (fr) * 1975-10-07 1977-05-06 Julie Clement Amenagement de cheminee du type " campagnard "

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067383A1 (de) * 1981-06-15 1982-12-22 Hans Aeberhard Heiz-Cheminée mit einer Öffnung zu einem Feuerraum
GB2213577A (en) * 1987-12-11 1989-08-16 Beaumont John L Ltd Convection space heating arrangement for a flame effect gas fire
FR2660052A1 (fr) * 1990-03-22 1991-09-27 David Jean Pierre Chaudiere de cheminee a air pulse et tirage tridirectionnel utilisant une piece de fond de foyer parabolique.
WO1991014902A1 (fr) * 1990-03-22 1991-10-03 David Jean Pierre Chaudiere de cheminee a air ou eau a tirage tridirectionnel utilisant une piece de fond de foyers parabolique
FR3012576A1 (fr) * 2013-10-31 2015-05-01 Jean-Michel Delage Dispositif de chauffage de type chaudiere et procede de fonctionnement

Also Published As

Publication number Publication date
DE3070342D1 (en) 1985-04-25
EP0029783B1 (de) 1985-03-20
FR2472721A1 (fr) 1981-07-03
FR2472721B1 (de) 1984-06-22
ATE12306T1 (de) 1985-04-15

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