EP3693665A1 - Ofen mit versetztem wärmetauscher - Google Patents

Ofen mit versetztem wärmetauscher Download PDF

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Publication number
EP3693665A1
EP3693665A1 EP20155954.9A EP20155954A EP3693665A1 EP 3693665 A1 EP3693665 A1 EP 3693665A1 EP 20155954 A EP20155954 A EP 20155954A EP 3693665 A1 EP3693665 A1 EP 3693665A1
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EP
European Patent Office
Prior art keywords
combustion
frame
stove
combustion chamber
air
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
EP20155954.9A
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English (en)
French (fr)
Other versions
EP3693665B1 (de
Inventor
Yann DENANCE
Kevin PAULIN
Elodie FAIVRE
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Inovalp
Original Assignee
Inovalp
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Publication of EP3693665A1 publication Critical patent/EP3693665A1/de
Application granted granted Critical
Publication of EP3693665B1 publication Critical patent/EP3693665B1/de
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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
    • F24B7/00—Stoves, ranges or flue-gas ducts, with additional provisions for convection heating 
    • F24B7/04—Stoves, ranges or flue-gas ducts, with additional provisions for convection heating  with internal air ducts
    • F24B7/045—Stoves, ranges or flue-gas ducts, with additional provisions for convection heating  with internal air ducts with forced 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
    • F24B1/00—Stoves or ranges
    • F24B1/02—Closed stoves
    • F24B1/024—Closed stoves for pulverulent fuels
    • 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
    • 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
    • F24B1/1888—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 with forced circulation

Definitions

  • the invention relates to the technical field of stoves, in particular pellet stoves. More specifically, the invention relates to stoves of the stove-fireplace type where it is possible to observe the fire as in a fireplace.
  • the power supply module has walls delimiting a solid fuel storage space (p.3, 1.28-30).
  • the combustion module and the power module are separate modules, without being surrounded by a common covering.
  • a stove of the state of the art comprises a dedicated protective wall panel, separate from a covering wall, and arranged between the combustion module and the walls delimiting the storage space.
  • the wall panel can be mounted on the front wall of the storage space (p.13, 1.14-15; fig.4 ).
  • the wall panel can form the front wall of the storage space (p.13, 1.10-12; fig.5 ).
  • the protective wall panel is designed to protect the wall but also the storage space, and therefore the fuel, from the heat radiated by the combustion module via its rear face (p.3, 1.20-24).
  • Such a prior art stove is not entirely satisfactory insofar as the protective wall panel can be bulky and complicates the design of the stove, in particular when the wall panel forms the front wall of the stove. storage space.
  • the voluminous appearance of the protective wall panel can also weigh down the aesthetics depending on the nature of the room to be heated.
  • the fuel tank has its own walls, separate from the future covering walls of the frame which will for example be mounted on the frame when the stove is installed in a room to be heated.
  • a stove according to the invention also makes it possible to dispense with a protective wall panel forming a wall of the fuel tank, which simplifies the design of the stove.
  • Such a stove according to the invention makes it possible to deport the fuel tank, the exhaust duct and the heat exchanger outside the combustion chamber, which allows an aesthetic break making it possible to focus on the flame.
  • the convection function is separate from the radiation function.
  • the stove according to the invention may have one or more of the following characteristics.
  • the circulation means are arranged to suck the ambient air from the room to be heated towards the heat exchanger.
  • an advantage obtained is to obtain a diffusion of heat by forced convection.
  • an advantage obtained is to purify the combustion chamber by concealing the technical parts (combustion air supply duct, smoke evacuation duct) in the frame, in order to focus on the flame.
  • the portion of the combustion air supply tube is concealed in the spacing area.
  • the part of the combustion air supply tube extends in the spacing zone below the part of the supply tube and above the part of the discharge tube. .
  • an advantage obtained is to avoid heating the fuel present in the supply tube by thermal radiation emitted by the discharge tube, by interposing the combustion air supply tube.
  • an advantage obtained is to heat the combustion air present in the combustion air supply tube by thermal radiation emitted by the discharge tube, which increases the efficiency.
  • the fixing means comprise the supply tube, the discharge tube and the combustion air supply tube.
  • an advantage obtained is to obtain satisfactory mechanical strength of the enclosure without requiring additional dedicated fixing means.
  • the combustion air supply duct and the discharge duct are coaxial.
  • an advantage obtained is to reduce the size of the stove.
  • the frame has a mass suitable for supporting the combustion chamber; the combustion chamber and the frame each comprising a base; and the fixing means are arranged to suspend the base of the combustion chamber above the base of the frame.
  • an advantage obtained is to suspend the enclosure and to do without feet to support it.
  • the reinforcement extends along a vertical axis
  • the supply tube extends in an oblique direction with respect to the vertical axis so as to supply the burner with fuel by gravity.
  • an advantage obtained is to obtain easy guidance of the fuel towards the burner.
  • the frame comprises at least one side hatch.
  • the reinforcement comprises a base, intended to rest on a floor of the room to be heated, and made of an elastic material.
  • an advantage obtained is to reduce any vibrations caused by technical elements present in the frame, for example the motors of the suction means.
  • the first opening is located above the combustion chamber; the second opening is located below the combustion chamber; and the circulation means are arranged to suck the ambient air from the first opening towards the second opening via the heat exchanger.
  • an advantage provided by such a forced convection is to obtain delamination of the ambient air by moving the ambient air from an upper part to a lower part.
  • the stove comprises a deflector arranged to deflect the ambient air leaving the second opening downwards.
  • an advantage obtained is to improve the delamination of the ambient air.
  • the room to be heated comprises a floor and a ceiling, and the covering walls extend from the floor to the ceiling.
  • an advantage obtained is to be able to adapt the dimensions of the covering walls to the dimensions of the room to be heated.
  • the room to be heated comprises a wall, and the frame is embedded in the wall or is affixed against the wall.
  • the frame 2 is advantageously made of a metallic material.
  • the frame 2 may include a set of uprights and cross members arranged to support the stove 1.
  • the frame 2 advantageously has a mass suitable for supporting the combustion chamber 3.
  • the mass of the frame 2 can be adapted so that the frame 2 is self-supporting.
  • the frame 2 comprises a base 20, intended to rest on a floor of the room to be heated.
  • the base 20 of the frame 2 is advantageously made of an elastic material, for example a rubber.
  • the base 20 of the frame 2 may include pads made of the elastic material.
  • the frame 2 preferably extends along a vertical axis.
  • the frame 2 advantageously comprises at least one side hatch 21.
  • the frame 2 can be devoid of covering walls 9.
  • the covering walls 9 can be mounted on the frame 2 when installing the stove 1 in a room to heat.
  • the frame 2 and the combustion chamber 3 do not have a common cladding.
  • combustion air A can be taken directly from the room to be heated so as to flow directly through the combustion air A supply tube 8.
  • Part 80 of the combustion air supply tube 8 A advantageously extends in the spacing zone ZE below part 50 of the supply tube 5 and above part 60 of the discharge tube. 6.
  • the combustion air supply duct C a and the exhaust duct C e are coaxial. More precisely, the supply duct C a with combustion air A and the discharge duct C e advantageously comprise coaxial upper parts.
  • the combustion chamber 3 comprises a base 31, preferably suspended, that is to say extending above the floor of the room to be heated.
  • the combustion chamber 3 comprises at least one window 32 arranged to observe the flame.
  • the stove 1 advantageously comprises a first thermal insulation layer mounted on the outside of the combustion chamber 3, arranged so as to reduce the flow of thermal radiation transmitted by the rear face (ie oriented towards the spacing zone ZE ) of the combustion chamber 3.
  • the stove 1 advantageously comprises a second thermal insulation layer mounted inside the combustion chamber 3, and arranged so as to reduce the flow of thermal radiation transmitted by the rear face (ie oriented towards the spacing zone ZE) of the combustion chamber 3.
  • the fuel tank 4 C is fixed to the frame 2.
  • the fuel tank 4 comprises walls 40 forming an enclosure suitable for containing solid fuel C, preferably wood pellets.
  • the stove 1 may include a thermal insulation layer or an air space arranged around the fuel tank 4 C.
  • the fixing means advantageously comprise the supply tube 5, the discharge tube 6 and the supply tube 8 with combustion air A. More precisely, the fixing means advantageously comprise the part 50 of the supply tube 5, part 60 of the discharge tube and part 80 of the combustion air supply tube 8 A, arranged to provide the mechanical connection between the frame 2 and the combustion chamber 3.
  • the fixing means are advantageously arranged to suspend the base 31 of the combustion chamber 3 above the base 20 of the frame 2.
  • the supply tube 5 extends in an oblique direction with respect to the vertical axis of the frame 2 so as to supply the burner 30 with fuel C by gravity.
  • the supply tube 5 is advantageously connected to the fuel tank 4 C by means of an endless screw 51 making it possible to measure the fuel supply C.
  • the heat exchanger 7 can be a tube exchanger 71.
  • the combustion fumes F circulate in the heat exchanger 7 so as to exchange calories with the ambient air of the circulating room to be heated. in the reception volume.
  • the evacuation tube 6 advantageously comprises a first portion arranged to evacuate the combustion fumes F from the combustion chamber 3 to the heat exchanger 7.
  • the evacuation tube 6 advantageously comprises a second portion arranged to receive the combustion fumes F leaving the heat exchanger 7 in order to evacuate them towards the evacuation duct C e .
  • the circulation means may include ventilation ducts (not shown for the sake of readability) arranged to circulate the ambient air of the room to be heated in the reception volume via the heat exchanger 7.
  • the circulation means are advantageously arranged to suck the ambient air from the room to be heated towards the heat exchanger 7.
  • the circulation means advantageously comprise a suction member 70 arranged to suck the ambient air from the heat exchanger. part to be heated to the heat exchanger 7.
  • the circulation means are arranged to circulate the ambient air from the first opening to the second opening 90 via the heat exchanger 7.
  • the first opening is advantageously located above the combustion chamber 3.
  • the term “above” is understood in orthogonal projection on the covering wall 9 where the first opening is formed.
  • the second opening 90 is advantageously located below the combustion chamber 3.
  • the term “below” is understood to be understood in orthogonal projection on the covering wall 9 where the second opening is formed.
  • the circulation means are advantageously arranged to suck the ambient air from the first opening towards the second opening 90 via the heat exchanger 7 in order to obtain forced convection.
  • the first opening is located below the combustion chamber 3 and the second opening 90 is located above the combustion chamber 3.
  • the circulation means then allow natural convection of the ambient air from the first opening to the second opening 90 via the heat exchanger 7.
  • the stove 1 advantageously comprises a deflector (not illustrated) arranged to deflect the ambient air leaving the second opening 90 downwards.
  • the room to be heated has a floor and a ceiling, and the covering walls 9 advantageously extend from floor to ceiling.
  • the room to be heated has a wall, and the frame 2 is advantageously embedded in the wall or is advantageously affixed against the wall.
  • the stove 1 comprises an additional heat exchanger, arranged in the combustion chamber 3, upstream of the second opening, for transferring the thermal energy of the combustion fumes F to the ambient air leaving the heat exchanger 7.
  • the stove 1 comprises a connecting tube, arranged to connect the ambient air leaving the heat exchanger 7 to the additional heat exchanger.
  • the connecting tube makes it possible to connect the reception volume, delimited by the frame 2, to the combustion chamber 3.
  • the circulation means are arranged to circulate the ambient air of the room to be heated in the receiving volume via the heat exchanger 7.
  • the circulation means are also arranged to circulate the ambient air leaving the heat exchanger. 7 to the additional heat exchanger via the connecting tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid-Fuel Combustion (AREA)
  • Air Supply (AREA)
EP20155954.9A 2019-02-09 2020-02-06 Ofen mit versetztem wärmetauscher Active EP3693665B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1901304A FR3092648B1 (fr) 2019-02-09 2019-02-09 Poêle à échangeur thermique déporté

Publications (2)

Publication Number Publication Date
EP3693665A1 true EP3693665A1 (de) 2020-08-12
EP3693665B1 EP3693665B1 (de) 2023-03-29

Family

ID=67107745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20155954.9A Active EP3693665B1 (de) 2019-02-09 2020-02-06 Ofen mit versetztem wärmetauscher

Country Status (2)

Country Link
EP (1) EP3693665B1 (de)
FR (1) FR3092648B1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5243963A (en) * 1991-02-19 1993-09-14 Karl Stefan Riener Furnace for solid fuels, especially for pellets
EP1327825A1 (de) * 2002-01-10 2003-07-16 Gruppo Piazzetta S.p.A. Ofen für Brennstoffpellets
WO2008059300A1 (en) * 2006-11-16 2008-05-22 Fireplace Kft. Fireplace with gravitational feeding for pellet
WO2016207395A1 (fr) * 2015-06-24 2016-12-29 Invicta Gaine d'alimentation pour poêle
FR3038034A1 (fr) 2015-06-24 2016-12-30 Invicta Poele a combustible solide et module d'alimentation d'un tel poele
EP3205940A1 (de) * 2016-02-15 2017-08-16 Thermorossi S.P.A. Pelletofen eine glaswand umfassend

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5243963A (en) * 1991-02-19 1993-09-14 Karl Stefan Riener Furnace for solid fuels, especially for pellets
EP1327825A1 (de) * 2002-01-10 2003-07-16 Gruppo Piazzetta S.p.A. Ofen für Brennstoffpellets
WO2008059300A1 (en) * 2006-11-16 2008-05-22 Fireplace Kft. Fireplace with gravitational feeding for pellet
WO2016207395A1 (fr) * 2015-06-24 2016-12-29 Invicta Gaine d'alimentation pour poêle
FR3038034A1 (fr) 2015-06-24 2016-12-30 Invicta Poele a combustible solide et module d'alimentation d'un tel poele
EP3205940A1 (de) * 2016-02-15 2017-08-16 Thermorossi S.P.A. Pelletofen eine glaswand umfassend

Also Published As

Publication number Publication date
FR3092648A1 (fr) 2020-08-14
EP3693665B1 (de) 2023-03-29
FR3092648B1 (fr) 2021-02-12

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