EP2738459A1 - Verbrennungsvorrichtung - Google Patents

Verbrennungsvorrichtung Download PDF

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Publication number
EP2738459A1
EP2738459A1 EP11870296.8A EP11870296A EP2738459A1 EP 2738459 A1 EP2738459 A1 EP 2738459A1 EP 11870296 A EP11870296 A EP 11870296A EP 2738459 A1 EP2738459 A1 EP 2738459A1
Authority
EP
European Patent Office
Prior art keywords
section
main body
air
cyclone
fuel
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.)
Withdrawn
Application number
EP11870296.8A
Other languages
English (en)
French (fr)
Other versions
EP2738459A4 (de
Inventor
Seok Joong Hwang
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.)
HANSUNG HIGH FREQUENCY CO Ltd
Original Assignee
HANSUNG HIGH FREQUENCY CO Ltd
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 HANSUNG HIGH FREQUENCY CO Ltd filed Critical HANSUNG HIGH FREQUENCY CO Ltd
Publication of EP2738459A1 publication Critical patent/EP2738459A1/de
Publication of EP2738459A4 publication Critical patent/EP2738459A4/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • F23D1/02—Vortex burners, e.g. for cyclone-type combustion apparatus
    • 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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B10/00—Combustion apparatus characterised by the combination of two or more combustion chambers
    • F23B10/02—Combustion apparatus characterised by the combination of two or more combustion chambers including separate secondary combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B50/00—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
    • F23B50/12—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel being fed to the combustion zone by free fall or by sliding along inclined surfaces, e.g. from a conveyor terminating above the fuel bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B60/00—Combustion apparatus in which the fuel burns essentially without moving
    • F23B60/02—Combustion apparatus in which the fuel burns essentially without moving with combustion air supplied through a grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B90/00—Combustion methods not related to a particular type of apparatus
    • F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F23L9/02—Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air above the fire
    • 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 
    • F24B13/006—Arrangements for cleaning, e.g. soot removal; Ash removal
    • 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
    • F24B5/023—Supply of primary air for combustion
    • 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
    • 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 
    • F24B7/02—Stoves, ranges or flue-gas ducts, with additional provisions for convection heating  with external air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2201/00—Burners adapted for particulate solid or pulverulent fuels
    • F23D2201/20—Fuel flow guiding devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2209/00—Safety arrangements
    • F23D2209/10—Flame flashback
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/26—Biowaste
    • F23G2209/261—Woodwaste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/06—Solid fuel fired boiler
    • F24D2200/065—Wood fired boilers
    • F24D2200/067—Pellet fired boilers

Definitions

  • the invention relates to a combustion device, and more particularly to a combustion device which has a simple structure and burns wood chips, wood pellets or other fuel to achieve high heat efficiency and strong thermal power and generate less soot or air pollution.
  • the combustion devices or burners which use wood fuels such as sawdust, wood chips or wood pellets produced by extruding the wood chips are widely used on the boiler, stove, heater or hot air generator.
  • the user should pour the sawdust, wood chips or wood pellets on the porous plate or grate in the body of the burner and set fire and supply air on them. In this case, if the supplied air is not sufficient, the fuel will not be burned completely, and much soot will be generated and the sufficient thermal power may not be attained.
  • the invention is suggested to solve the above mentioned problems of the conventional combustion devices, and the object of the invention is to provide a new combustion device which has a simple structure and bums wood chips, wood pellets or other fuel to achieve high heat efficiency and strong thermal power and generate less soot or air pollution.
  • a combustion device comprising a main body having a porous plate which is formed inside and on which injected fuel is stacked; a fuel injection section communicating with one side of the upper portion of the main body; a first air supply section communicating with the lower portion of the porous plate of the main body and supplying air; an ignition section formed to be adjacent to the porous plate and igniting the fuel; a flame discharge section extending from the other side of the upper portion of the main body and discharging the flame and heat caused by the combustion; a cyclone section formed in the shape of a short cylinder and expanding in a lateral direction from the periphery of the flame discharge section so as to partially expand the path of the flame discharge section; and a second air supply section communicating with one side of the periphery of the cyclone section and supplying air to the cyclone section in a tangential direction.
  • the flame discharge section has a tapered inner portion between the main body and the cyclone section to restrict the backward air flow.
  • the fuel injection section is formed in the shape of tube, and a backfire prevention air injection hole is formed on the periphery of the fuel injection section.
  • small holes are formed on the periphery of the cyclone section to exhaust the ash generated after combustion.
  • the combustion device according to the invention it is possible to achieve an effective combustion device having higher thermal power and higher heat efficiency with least environmental pollution owing to the discharged unburned fuel particles, soot or smoke.
  • the flame discharge section has a tapered inner portion between the main body and the cyclone section to restrict the backward air flow, the circulating air in the cyclone section would flow to exhaust outward rather than flow backward into the main body, so that the flame and air should flow outward smoothly.
  • the fuel injection section is formed in the shape of tube and a backfire prevention air injection hole is formed on the periphery of the fuel injection section, the flame in the main body of the burner is not prevented from backfiring through the fuel injection section.
  • the small amount of ashes created after the second burning of the incompletely burned fuel and soot could be emitted outward, so the accumulation of the ash inside the cyclone section may be prevented.
  • FIG. 1 is a perspective view of the embodiment of the invention and FIG. 2 is a sectional view of the embodiment of the invention.
  • the combustion device 2 of the invention comprises a case type main body 10, a porous plate 12 or grate placed horizontally in the lower part of the main body 10, and a first air supply section 18 formed beneath the porous plate 12 through which the outer air inflows.
  • a fan or blower may be connected to the first air supply section 18 to supply the air into the main body 10.
  • An ignition section 20 is formed above the first air supply section 18, or right above the porous plate 12.
  • a proper ignition means may be attached to this ignition section 20 such as a gas torch or an electrical heater.
  • a fuel injection section 14 is formed on one side of the upper portion of the main body 10.
  • This fuel injection section 14 may have various structures, but it is preferable to have space between the inlet of the fuel injection section 14 and the main body 10, so a lengthy tubular fuel injection section is desirable.
  • a backfire prevention air injection hole 15 is formed in the periphery of the fuel injection section 14. This backfire prevention air injection hole 15 is connected to the fuel injection section 14 so as to direct the air toward the main body 10. Accordingly if the pressured air is injected into the backfire prevention air injection hole 15, the flame in the main body 10 is prevented from backfiring through the fuel injection section 14.
  • a cylindrical flame discharge section 24 extends from on the other side of the main body 24.
  • This flame discharge section 24 discharges the flame and heat created in the main body 10 during the combustion of the fuel and introduces them to necessary utilities or a heat exchanger.
  • a short cylindrical cyclone section 30 is formed at the middle portion of the flame discharge section 24, which expands in a radial direction from the periphery of the flame discharge section 24. Due to this cyclone section 30, the exhausting sectional area of the flame discharge section 24 is enlarged in a short distance.
  • a second air supply section 32 is formed on the periphery of the cyclone section 30, which communicates with cyclone section 30 in a tangential direction.
  • a fan or blower may be connected to the second air supply section 32 to supply strong air flow. As a result, the strong circulating air flow is formed inside the cyclone section 30.
  • the centrifugal force due to the circulating air created in the cyclone section 30 due to the air flow from the second air supply section 32 will induce them toward the periphery of the cyclone section 30, and those fuel particles or soot will be retained and circulate in the cyclone section 30 and will be secondly burned with the refilled fresh air supplied from the second air supply section 32.
  • the unburned fuel particles or the soot of the incompletely burned fuel may not be discharged directly from the flame discharge section 24, but they will be burned out secondly by the additional fresh air from the second air supply section 32, which will result in the almost complete combustion of the burner and the least emission of air polluting particles such as unburned fuel particles or soot of the incompletely burned fuel.
  • the flame discharge section 24 is provided with a tapered inner portion 34 at the inner side of the cyclone section 30 facing the main body 10 to restrict the backward air flow.
  • the tapered inner portion 34 reduces the sectional area of the flame discharge section 21 gradually from the main body 10 to the inlet of the cyclone section 30, so that when the circulating air exits from the cyclone section 30, the exiting air may be restricted to flow backwardly into the main body 10, but it may be smoothly introduced to flow toward the outside of the flame discharge section 24.
  • plural small holes 31 are formed on the periphery of the cyclone section 30, which enable the ashes created during the secondly burning of the unburned fuel particles or incompletely burned fuel in the cyclone section 30 by the additional fresh air from the second air supply section 32 to be emitted from the cyclone section 30. Therefore, the burned residuals such as ashes may not remain in the cyclone section 30.
  • the fuel injection section 14 is formed in the shape of a tube, and a backfire prevention air injection hole 15 is formed on the periphery of the fuel injection section 14.
  • the backfire prevention air injection hole 15 is connected to the fuel injection section 14 inclining toward the main body 10. By injecting the pressured air, the flame in the main body 10 is prevented from backfiring through the fuel in the tubular fuel injection section 14.
  • Preferably regulating valves may be attached at the first air supply section 18, the second air supply section 32 and the backfire prevention air injection hole 15 to control the volume of the air flow.
  • FIG. 3 shows the example of the hot air generator 1 which uses the combustion device of the invention as heat source.
  • the hot air exhausted from the combustion device 2 of the invention is induced through the heat exchanger 4 comprising of fin tubes and delivered to demanding facilities.
  • the invention may be applied as various uses such as a hot air generator, a boiler, heater, stove and others.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Solid-Fuel Combustion (AREA)
  • Air Supply (AREA)
EP11870296.8A 2011-07-29 2011-10-05 Verbrennungsvorrichtung Withdrawn EP2738459A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20110075700A KR101185034B1 (ko) 2011-07-29 2011-07-29 버너
PCT/KR2011/007335 WO2013018954A1 (ko) 2011-07-29 2011-10-05 연소장치

Publications (2)

Publication Number Publication Date
EP2738459A1 true EP2738459A1 (de) 2014-06-04
EP2738459A4 EP2738459A4 (de) 2015-04-15

Family

ID=47113970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11870296.8A Withdrawn EP2738459A4 (de) 2011-07-29 2011-10-05 Verbrennungsvorrichtung

Country Status (6)

Country Link
US (1) US20140158108A1 (de)
EP (1) EP2738459A4 (de)
JP (1) JP2014524006A (de)
KR (1) KR101185034B1 (de)
CN (1) CN103703315A (de)
WO (1) WO2013018954A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101312016B1 (ko) 2011-12-19 2013-10-14 (주)한성고주파 연소장치
CN103528084B (zh) * 2013-10-30 2016-01-20 艾治文 自身预热式高温氧化排烟罩
JP6497580B2 (ja) * 2015-02-13 2019-04-10 島根県 熱源機器
CN107328099B (zh) * 2017-08-17 2023-09-15 成都佳达农业科技发展有限公司 生物质热风炉以及全自动生物质热风炉

Citations (5)

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Publication number Priority date Publication date Assignee Title
DE3130813A1 (de) * 1981-08-04 1983-03-24 Imai, Takeshi, São Paulo Vorrichtung zum vergasen von kohle, insbesondere vonholzkohle
US4971599A (en) * 1985-06-11 1990-11-20 Cordell Henry L Apparatus for gasifying solid organic materials
US5279234A (en) * 1992-10-05 1994-01-18 Chiptec Wood Energy Systems Controlled clean-emission biomass gasification heating system/method
AT402965B (de) * 1993-09-02 1997-10-27 List Guenther Ing Vorrichtung zur nachverbrennung für einen gebläsekessel oder herd
JP2005155982A (ja) * 2003-11-25 2005-06-16 Wako Kikai Kogyo Kk 燃焼炉

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US2745250A (en) * 1952-09-26 1956-05-15 Gen Electric Reverse vortex combustion chamber
JPS56913A (en) * 1980-05-27 1981-01-08 Hokkaido Togyo Kk Soot-free hot-blast generating system
US4669396A (en) * 1985-09-30 1987-06-02 Leaders Heat Products Pellet burning system
JPS6330709U (de) * 1986-08-13 1988-02-29
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KR200193841Y1 (ko) 2000-04-12 2000-08-16 주식회사그린테크 열효율을 극대화시킬 수 있도록 한 연소장치
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SE519605C2 (sv) * 2001-04-26 2003-03-18 Swedish Bioburner System Ab Anordning och metod för förbränning av fast bränsle
US20030194671A1 (en) * 2002-04-13 2003-10-16 Webb William Barney Recreational cyclonic burner
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JP4588628B2 (ja) * 2005-12-28 2010-12-01 金子農機株式会社 バイオマス燃料給湯器
KR100765689B1 (ko) * 2007-05-14 2007-10-12 채혁 목재칩 또는 펠릿을 연료로 하는 안전 버너
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JP5296393B2 (ja) * 2008-02-15 2013-09-25 株式会社山本製作所 木質ペレット燃焼装置
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130813A1 (de) * 1981-08-04 1983-03-24 Imai, Takeshi, São Paulo Vorrichtung zum vergasen von kohle, insbesondere vonholzkohle
US4971599A (en) * 1985-06-11 1990-11-20 Cordell Henry L Apparatus for gasifying solid organic materials
US5279234A (en) * 1992-10-05 1994-01-18 Chiptec Wood Energy Systems Controlled clean-emission biomass gasification heating system/method
AT402965B (de) * 1993-09-02 1997-10-27 List Guenther Ing Vorrichtung zur nachverbrennung für einen gebläsekessel oder herd
JP2005155982A (ja) * 2003-11-25 2005-06-16 Wako Kikai Kogyo Kk 燃焼炉

Non-Patent Citations (1)

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Title
See also references of WO2013018954A1 *

Also Published As

Publication number Publication date
JP2014524006A (ja) 2014-09-18
EP2738459A4 (de) 2015-04-15
US20140158108A1 (en) 2014-06-12
KR101185034B1 (ko) 2012-09-21
WO2013018954A1 (ko) 2013-02-07
CN103703315A (zh) 2014-04-02

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