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WO2020044065A1 - Poêle à bois - Google Patents

Poêle à bois Download PDF

Info

Publication number
WO2020044065A1
WO2020044065A1 PCT/HR2019/000020 HR2019000020W WO2020044065A1 WO 2020044065 A1 WO2020044065 A1 WO 2020044065A1 HR 2019000020 W HR2019000020 W HR 2019000020W WO 2020044065 A1 WO2020044065 A1 WO 2020044065A1
Authority
WO
WIPO (PCT)
Prior art keywords
wood
combustion chamber
air
burning
heat exchanger
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.)
Ceased
Application number
PCT/HR2019/000020
Other languages
English (en)
Inventor
Mladen Stupnišek
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 WO2020044065A1 publication Critical patent/WO2020044065A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F24B1/02—Closed stoves
    • F24B1/04—Closed stoves built-up from glazed tiles 
    • 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
    • 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
    • F24B1/1902—Supplying combustion-air in combination with provisions for heating air only
    • 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
    • F24B5/028—Arrangements combining combustion-air and flue-gas circulation

Definitions

  • the present invention relates to a new design of a stove for ecoffiendly and energy efficient heating with logs.
  • the invention falls within field F24B: Domestic stoves or ranges for solid fuels; implements for use in connection with stoves or ranges.
  • the essence of the invention is a design of a wood-burning stove and additional fittings that significantly improve wood burning and thereby reduce the emission of hazardous gaseous components and fine particles in flue gases, but also increase the thermal efficiency of flue gases before entering a chimney.
  • a more complete combustion is achieved by the method of top down wood burning in an upright rectangular combustion chamber.
  • a duct made of heat-resistant steel sheet is installed along the entire width of the back side, in the continuation of a steep roof and the front side around glazed doors in one piece for supplying additional air. Additional air is thus pre heated in those ducts and secondary combustion is achieved in the entire upper part of the combustion chamber by such air outflowing through the holes, and simultaneously the depositing of soot on door glass is prevented.
  • a fine particle separator comprising a centrifugal gravity cyclone (for coarser particles) and an electrostatic filter (for finer particles), is added directly to an outlet combustion chamber pipe.
  • the separation of fine particles is more efficient immediately after flue gases leave the combustion chamber since the difference in density for gravitational separation and ionization for electrostatic separation are higher at higher temperatures. This is especially important since the standards always reduce the limit for fine particles (PM 10). In the US, for the year 2020, a new limit (PM2.5) was adopted.
  • Adding the fine particle separator directly to the outlet flue pipe enables the stove to empty very easily fine particles from the separator, which is a huge difference in relation to the state of the art, whereby electrostatic filters are installed in flue pipes before the chimney or in chimneys, where the emptying of fine particles is made difficult.
  • a parallel heat exchanger is added, in which the heat of flue gases is transferred to fresh air supplied from the outside, whereby both better thermal efficiency and room ventilation by heated fresh outside air is achieved.
  • a spiral turbulator in the flue pipe and serpentine baffles in the air tube significantly increase heat transfer from flue gases to fresh outside air since turbulence is achieved in both media, flue gases and heated air.
  • Fittings for separating flying particles from flue gases (centrifugal gravity cyclone and electrostatic filter) and parallel heat exchanger can be placed in an adjacent room through a partition wall by means of a short intermediate pipe, spreading thus heat to another room as well.
  • the enclosed drawing presents a vertical cross-section of a wood-burning stove with an added fme particle separator, comprising a centrifugal gravity cyclone with an electrostatic filter and an added heat exchanger (recuperator) for heating fresh outside air.
  • the stove comprises a steel sheet mantle (1), lined with ceramic plates (2) with a combustion chamber (4) being in an upright position and rectangular.
  • a heat resistant-steel sheet duct (3) On the back side of the combustion chamber, there is a heat resistant-steel sheet duct (3), in which, through an opening (6), additional air from the room enters, is pre-heated in the combustion chamber and through holes enters from the duct in the upper part of the combustion chamber for secondary combustion and to glazed doors as tertiary air.
  • an external convection mantle (17) Outside the combustion chamber mantle, there is an external convection mantle (17), which can be rectangular, round or oval, in which room air is heated by natural heat buoyance.
  • a separator of fine particles from flue gases comprising a centrifugal gravity cyclone (22) and an electrostatic filter (23), as well as a heat exchanger (25) for heating fresh outside air supplied through a tube (28), is added to a combustion chamber outlet flue pipe (19).
  • Dry wood is placed through lower glazed door (13) on the bottom of a combustion chamber (4) and then through upper glazed door (15) until the middle of the height of the upper glazed door.
  • a damper of the outlet flue pipe (20) of the combustion chamber, primary air supply (11 and 14) on the bottom glazed door (13), additional air opening (6) for secondary combustion as well as outside air supply (28) to a heat exchanger (25) are opened.
  • Wood on top of the combustion chamber are lit by a firelighter and thereafter both glazed doors are closed. Wood bums top down in the combustion chamber, stimulated by primaiy air and by means of additional air by secondary combustion before flue gases leave the combustion chamber through an outlet flue pipe (19).
  • a wood-buming stove falls within the type of“domestic stoves” and is intended for heating detached buildings, apartments and weekend cottages by using logs, the cheapest renewable energy source of biomass.
  • Wood burning by applying the top down burning method with additional secondary combustion by pre-heated air contributes to a more complete combustion and thereby also to the lower emission of hazardous gases and flying particles. Additional pre-heated air prevents also the depositing of soot on door glass.
  • the steady slow-burning of wood is achieved by controlled primary and additional air supply, which for one feeding with logs lasts several hours and in continuation, embers and accumulated heat in a ceramic lining prolong the heating for several hours. To prolong the heating, a smaller amount of wood may be added to the existing embers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Solid-Fuel Combustion (AREA)

Abstract

L'invention concerne un poêle à bois doté d'une chambre de combustion verticale (4) et permettant une combustion plus complète du bois au moyen d'un procédé de combustion de haut en bas à l'aide d'un système intégré de conduits en tôle (3), permettant un préchauffage et une distribution d'air supplémentaire à travers des trous afin d'effectuer une combustion secondaire dans la partie supérieure de la chambre de combustion, ce qui contribue à une combustion plus complète du bois. Ce faisant, l'émission de gaz nocifs (monoxyde de carbone CO et hydrocarbures non brûlés CxHy), suie et particules fines dans les gaz de combustion est réduite. Un séparateur de particules fines, comprenant un cyclone gravitationnel centrifuge (22) et un filtre électrostatique (23), contribuant à la réduction des émissions de particules fines dans les gaz de combustion, est ajouté à un tuyau de fumée de sortie (19). Un échangeur de chaleur supplémentaire (25) chauffe de l'air extérieur frais, ce qui permet d'obtenir une efficacité thermique supplémentaire des gaz de combustion ainsi qu'une ventilation naturelle de l'espace par l'air extérieur, lequel est chauffé sans besoin d'un ventilateur. Un agitateur en spiral (27) intégré dans un tuyau de fumée (26), et des déflecteurs en serpentin (30) intégrés dans un tube à air (29), augmentent le transfert de chaleur à l'air extérieur apporté, augmentant ainsi l'efficacité thermique. Le séparateur de particules fines (22 et 23) et l'échangeur de chaleur (25) peuvent être également situés dans un espace adjacent au moyen d'un tuyau intermédiaire court à travers une cloison de séparation.
PCT/HR2019/000020 2018-08-31 2019-07-24 Poêle à bois Ceased WO2020044065A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HRP20181405AA HRPK20181405B3 (hr) 2018-08-31 2018-08-31 Trajnožareća kaminska peć
HRP20181405A 2018-08-31

Publications (1)

Publication Number Publication Date
WO2020044065A1 true WO2020044065A1 (fr) 2020-03-05

Family

ID=67742879

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HR2019/000020 Ceased WO2020044065A1 (fr) 2018-08-31 2019-07-24 Poêle à bois

Country Status (2)

Country Link
HR (1) HRPK20181405B3 (fr)
WO (1) WO2020044065A1 (fr)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US390670A (en) * 1888-10-09 Heating and ventilating stove
FR1553014A (fr) 1966-11-26 1969-01-10
EP0004235A1 (fr) * 1978-03-07 1979-09-19 CHEMINEES RICHARD LE DROFF Société anonyme dite: Appareil à combustion vive
DE3927378A1 (de) * 1989-08-19 1991-02-21 Diederichs Hans Joachim Feuerungsvorrichtung
US5014680A (en) * 1989-03-15 1991-05-14 The United States Of America As Represented By The United States Department Of Energy Self-powered automatic secondary air controllers for woodstoves and small furnaces
US20050279344A1 (en) * 2002-11-20 2005-12-22 Thermic Investments S.A. High output heating device
JP2006234302A (ja) * 2005-02-25 2006-09-07 Kaneko Agricult Mach Co Ltd 木質ペレット燃焼装置
CN202835452U (zh) * 2012-08-03 2013-03-27 山东省科学院能源研究所 适用于生物质燃料的除尘换热装置
ES2435615A2 (es) 2012-03-22 2013-12-20 Luis RUIZ BARBERO Tubo de evacuacion de humos y gases para estufas, calderas y chimeneas, con aprovechamiento del calor residual desprendido en la combustion
DE202015105434U1 (de) 2015-10-14 2015-11-19 Gebr. Bruns Gmbh Ofen mit Scheibenlüftung
AT516353A2 (de) 2014-07-28 2016-04-15 Marco Gehrer Wärmetauscher
GB2533040A (en) 2015-12-07 2016-06-08 Jetmaster Fires Ltd Stove
US20160186989A1 (en) 2013-07-18 2016-06-30 Charlton & Jenrick Limited Fire constructions

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US390670A (en) * 1888-10-09 Heating and ventilating stove
FR1553014A (fr) 1966-11-26 1969-01-10
EP0004235A1 (fr) * 1978-03-07 1979-09-19 CHEMINEES RICHARD LE DROFF Société anonyme dite: Appareil à combustion vive
US5014680A (en) * 1989-03-15 1991-05-14 The United States Of America As Represented By The United States Department Of Energy Self-powered automatic secondary air controllers for woodstoves and small furnaces
DE3927378A1 (de) * 1989-08-19 1991-02-21 Diederichs Hans Joachim Feuerungsvorrichtung
US20050279344A1 (en) * 2002-11-20 2005-12-22 Thermic Investments S.A. High output heating device
JP2006234302A (ja) * 2005-02-25 2006-09-07 Kaneko Agricult Mach Co Ltd 木質ペレット燃焼装置
ES2435615A2 (es) 2012-03-22 2013-12-20 Luis RUIZ BARBERO Tubo de evacuacion de humos y gases para estufas, calderas y chimeneas, con aprovechamiento del calor residual desprendido en la combustion
CN202835452U (zh) * 2012-08-03 2013-03-27 山东省科学院能源研究所 适用于生物质燃料的除尘换热装置
US20160186989A1 (en) 2013-07-18 2016-06-30 Charlton & Jenrick Limited Fire constructions
AT516353A2 (de) 2014-07-28 2016-04-15 Marco Gehrer Wärmetauscher
DE202015105434U1 (de) 2015-10-14 2015-11-19 Gebr. Bruns Gmbh Ofen mit Scheibenlüftung
GB2533040A (en) 2015-12-07 2016-06-08 Jetmaster Fires Ltd Stove

Also Published As

Publication number Publication date
HRP20181405A2 (hr) 2020-03-06
HRPK20181405B3 (hr) 2021-04-30

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