EP2738459A1 - Combustion device - Google Patents
Combustion device Download PDFInfo
- 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- Withdrawn
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Classifications
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2209/00—Safety arrangements
- F23D2209/10—Flame flashback
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- 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
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- 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)
Abstract
Description
- 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. To use the burner of this type, 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. Contrarily, if the air is supplied powerfully for sufficient oxygen, then the unburned particles of wood fuel on the grate or the soot of the incompletely burned fuel particles will fly and be scattered outside the burner by the powerful air blow, which results in the insufficient thermal power or low heat efficiency of the combustion device, and the surrounding air will be polluted owing to the scattered unburned dust or soot of the wood fuel.
- 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.
- To attain the above object of the invention, according to an aspect of the invention, there is provided 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.
- According to another aspect of the invention, the flame discharge section has a tapered inner portion between the main body and the cyclone section to restrict the backward air flow.
- According to another aspect of the invention, 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.
- According to another aspect of the invention, small holes are formed on the periphery of the cyclone section to exhaust the ash generated after combustion.
- According to the invention, as the fuel stacked on the porous plate is burned by the air supplied through the first air supply section and the flame and heat are discharged through the flame discharge section, even though the air is supplied powerfully for sufficient oxygen through the first air supply section, so the unburned particles of fuel or the soot of the incompletely burned fuel are to fly and be discharged through the flame discharge section, they should be induced toward the cyclone section by the centrifugal force of the tangential air inflow through the second air supply section and circulate inside the cyclone section and are burned again by use of the oxygen in the additional air from the second air supply section, which results in almost complete combustion and prevents the unburned fuel particles or the soot of incomplete burned fuel from discharging through the flame discharge section. Therefore, with 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.
- In addition, as 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.
- In addition, as 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.
- In addition, as small holes are formed on the periphery of the cyclone 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.
- The above and other objects and advantages of the invention will become more apparent by describing a preferred embodiment with reference to the accompanying drawings in which:
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FIG. 1 is a perspective view of the preferred embodiment of the invention. -
FIG. 2 is a sectional view of the above embodiment of the invention. -
FIG. 3 is an example of the hot air generator which the invention is applied to. - Hereinafter, a preferred embodiment of the invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view of the embodiment of the invention andFIG. 2 is a sectional view of the embodiment of the invention. As shown, thecombustion device 2 of the invention comprises a case typemain body 10, aporous plate 12 or grate placed horizontally in the lower part of themain body 10, and a firstair supply section 18 formed beneath theporous plate 12 through which the outer air inflows. A fan or blower may be connected to the firstair supply section 18 to supply the air into themain body 10. Anignition section 20 is formed above the firstair supply section 18, or right above theporous plate 12. A proper ignition means may be attached to thisignition 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 themain body 10. Thisfuel injection section 14 may have various structures, but it is preferable to have space between the inlet of thefuel injection section 14 and themain body 10, so a lengthy tubular fuel injection section is desirable. A backfire preventionair injection hole 15 is formed in the periphery of thefuel injection section 14. This backfire preventionair injection hole 15 is connected to thefuel injection section 14 so as to direct the air toward themain body 10. Accordingly if the pressured air is injected into the backfire preventionair injection hole 15, the flame in themain body 10 is prevented from backfiring through thefuel injection section 14. - A cylindrical
flame discharge section 24 extends from on the other side of themain body 24. Thisflame discharge section 24 discharges the flame and heat created in themain body 10 during the combustion of the fuel and introduces them to necessary utilities or a heat exchanger. In this preferred embodiment, a shortcylindrical cyclone section 30 is formed at the middle portion of theflame discharge section 24, which expands in a radial direction from the periphery of theflame discharge section 24. Due to thiscyclone section 30, the exhausting sectional area of theflame discharge section 24 is enlarged in a short distance. And a secondair supply section 32 is formed on the periphery of thecyclone section 30, which communicates withcyclone section 30 in a tangential direction. A fan or blower may be connected to the secondair supply section 32 to supply strong air flow. As a result, the strong circulating air flow is formed inside thecyclone section 30. - According to the above structure of the
cyclone section 30, even though sufficient air may be supplied powerfully from the firstair supply section 18 to themain body 10 for sufficient oxygen, and it may cause the unburned fuel particles and the soot of the incompletely burned fuel to be discharged from theflame discharge section 24, the centrifugal force due to the circulating air created in thecyclone section 30 due to the air flow from the secondair supply section 32 will induce them toward the periphery of thecyclone section 30, and those fuel particles or soot will be retained and circulate in thecyclone section 30 and will be secondly burned with the refilled fresh air supplied from the secondair supply section 32. Therefore, the unburned fuel particles or the soot of the incompletely burned fuel may not be discharged directly from theflame discharge section 24, but they will be burned out secondly by the additional fresh air from the secondair 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. - According to the invention, the
flame discharge section 24 is provided with a taperedinner portion 34 at the inner side of thecyclone section 30 facing themain body 10 to restrict the backward air flow. The taperedinner portion 34 reduces the sectional area of the flame discharge section 21 gradually from themain body 10 to the inlet of thecyclone section 30, so that when the circulating air exits from thecyclone section 30, the exiting air may be restricted to flow backwardly into themain body 10, but it may be smoothly introduced to flow toward the outside of theflame discharge section 24. - And, plural
small holes 31 are formed on the periphery of thecyclone section 30, which enable the ashes created during the secondly burning of the unburned fuel particles or incompletely burned fuel in thecyclone section 30 by the additional fresh air from the secondair supply section 32 to be emitted from thecyclone section 30. Therefore, the burned residuals such as ashes may not remain in thecyclone section 30. - In addition, the
fuel injection section 14 is formed in the shape of a tube, and a backfire preventionair injection hole 15 is formed on the periphery of thefuel injection section 14. The backfire preventionair injection hole 15 is connected to thefuel injection section 14 inclining toward themain body 10. By injecting the pressured air, the flame in themain body 10 is prevented from backfiring through the fuel in the tubularfuel injection section 14. Preferably regulating valves may be attached at the firstair supply section 18, the secondair supply section 32 and the backfire preventionair 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 thecombustion device 2 of the invention is induced through theheat 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. - As described above, the invention has been described with respect to particularly preferred embodiments. However, the invention is not limited to the above embodiments, and it is possible for one who has an ordinary skill in the art to make various modifications and variations, without departing off the spirit of the invention. Thus, the protective scope of the invention is not defined within the detailed description thereof but is defined by the claims to be described later and the technical spirit of the invention.
Claims (4)
- 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 combustion device of claim 1, wherein the flame discharge section has a tapered inner portion between the main body and the cyclone section to restrict the backward air flow.
- The combustion device of claim 1 or 2, wherein the fuel injection section is formed in the shape of a tube, and a backfire prevention air injection hole is formed on the periphery of the fuel injection section.
- The combustion device of claim 1 or 2, wherein small holes are formed on the periphery of the cyclone section to exhaust the ash generated after combustion.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20110075700A KR101185034B1 (en) | 2011-07-29 | 2011-07-29 | Burner |
PCT/KR2011/007335 WO2013018954A1 (en) | 2011-07-29 | 2011-10-05 | Combustion device |
Publications (2)
Publication Number | Publication Date |
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EP2738459A1 true EP2738459A1 (en) | 2014-06-04 |
EP2738459A4 EP2738459A4 (en) | 2015-04-15 |
Family
ID=47113970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11870296.8A Withdrawn EP2738459A4 (en) | 2011-07-29 | 2011-10-05 | Combustion device |
Country Status (6)
Country | Link |
---|---|
US (1) | US20140158108A1 (en) |
EP (1) | EP2738459A4 (en) |
JP (1) | JP2014524006A (en) |
KR (1) | KR101185034B1 (en) |
CN (1) | CN103703315A (en) |
WO (1) | WO2013018954A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101312016B1 (en) | 2011-12-19 | 2013-10-14 | (주)한성고주파 | Burner |
CN103528084B (en) * | 2013-10-30 | 2016-01-20 | 艾治文 | Self-preheating-typehigh-temperature high-temperature oxidation smoke exhaust hood |
JP6497580B2 (en) * | 2015-02-13 | 2019-04-10 | 島根県 | Heat source equipment |
CN107328099B (en) * | 2017-08-17 | 2023-09-15 | 成都佳达农业科技发展有限公司 | Biomass hot-blast stove and full-automatic biomass hot-blast stove |
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JP2005155982A (en) * | 2003-11-25 | 2005-06-16 | Wako Kikai Kogyo Kk | Combustion furnace |
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- 2011-07-29 KR KR20110075700A patent/KR101185034B1/en active IP Right Grant
- 2011-10-05 JP JP2014522725A patent/JP2014524006A/en active Pending
- 2011-10-05 EP EP11870296.8A patent/EP2738459A4/en not_active Withdrawn
- 2011-10-05 WO PCT/KR2011/007335 patent/WO2013018954A1/en active Application Filing
- 2011-10-05 CN CN201180072427.7A patent/CN103703315A/en active Pending
- 2011-10-05 US US14/234,428 patent/US20140158108A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
JP2014524006A (en) | 2014-09-18 |
EP2738459A4 (en) | 2015-04-15 |
US20140158108A1 (en) | 2014-06-12 |
KR101185034B1 (en) | 2012-09-21 |
WO2013018954A1 (en) | 2013-02-07 |
CN103703315A (en) | 2014-04-02 |
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