WO2013149392A1 - Poêle à combustible biomasse - Google Patents

Poêle à combustible biomasse Download PDF

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Publication number
WO2013149392A1
WO2013149392A1 PCT/CN2012/073557 CN2012073557W WO2013149392A1 WO 2013149392 A1 WO2013149392 A1 WO 2013149392A1 CN 2012073557 W CN2012073557 W CN 2012073557W WO 2013149392 A1 WO2013149392 A1 WO 2013149392A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
heat exchange
box
burner
exchange box
Prior art date
Application number
PCT/CN2012/073557
Other languages
English (en)
Chinese (zh)
Inventor
朱宏锋
陈前喜
Original Assignee
Zhu Hongfeng
Chen Qianxi
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 Zhu Hongfeng, Chen Qianxi filed Critical Zhu Hongfeng
Priority to PCT/CN2012/073557 priority Critical patent/WO2013149392A1/fr
Priority to CN201280038741.8A priority patent/CN104067054A/zh
Publication of WO2013149392A1 publication Critical patent/WO2013149392A1/fr

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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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B40/00—Combustion apparatus with driven means for feeding fuel into the combustion chamber
    • F23B40/04—Combustion apparatus with driven means for feeding fuel into the combustion chamber the fuel being fed from below through an opening in the fuel-supporting surface
    • 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
    • F23B80/00—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel
    • F23B80/04—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel by means for guiding the flow of flue gases, e.g. baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/10—Under-feed arrangements
    • F23K3/14—Under-feed arrangements feeding by screw
    • 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

Definitions

  • the present invention relates to a stove using biomass fuel, and more particularly to a use A small particle made of pulverized pressed straw, wood chips, crop straw, etc. as a fuel and has a high heat exchange efficiency.
  • Biomass The fuel is small particles that are crushed and pressed from straw, wood chips, and crop straw. As a new type of energy, biomass fuel has begun to gain wider application due to its advantages of hygiene, environmental protection, high efficiency and economy.
  • the existing equipment is mostly the boiler water heating method.
  • this method has major disadvantages such as unsuitable movement and slow heating. If the method of directly burning and heating in the stove is adopted, there is a disadvantage that the fuel is manually added and the heat exchange efficiency is low. In this case, the temperature of the gas discharged from the outside after combustion is high, and there is a serious energy waste phenomenon. If the energy utilization rate is to be increased to reduce the waste of energy, it is necessary to significantly increase the length of the exhaust duct, which increases the volume of the entire heating device.
  • the technical problem to be solved by the present invention is to provide a biomass fuel stove which has both a small volume and a higher energy utilization ratio than a conventional stove.
  • the present invention provides a biomass fuel A stove that uses biomass fuel particles and includes a body that can be placed on the ground, the body including a combustion chamber and an auxiliary equipment box. Inside the combustion chamber contains a combustion near the bottom of the ground The burner has a fuel rack plate, a side plate extending upward along the periphery of the fuel rack plate, and a blast zone located below the fuel rack plate, the side plate enclosing a combustion zone above the fuel shelf plate, the fuel shelf plate and There are several ventilation holes on the side panel. There is a heat exchange box above the burner.
  • the heat exchange box includes a front surface exposed to the outside of the combustion chamber, a back surface opposite to the front surface, a bottom surface above the burner, and a top surface opposite to the bottom surface, a first a side surface and a second side opposite the first side.
  • a flue gas inlet port is opened on the bottom surface of the burner, and a flue gas discharge port is opened on the top surface.
  • the auxiliary equipment box houses a fuel delivery mechanism and electrical equipment.
  • the fuel delivery mechanism includes a hopper, a delivery barrel having one end communicating with the outlet below the hopper and the other end extending into the combustion zone, and a rotatable fuel auger rod accommodated in the delivery cylinder.
  • the electrical equipment includes a feed motor that drives the fuel auger rod, a blower that can supply air to the blast zone in the burner, and an exhaust fan that communicates with the flue gas discharge port on the top surface of the heat exchange box. , power supply, and a power switch.
  • the beneficial effects of the invention are due to the multiple rows of heat-dissipating cylinders in the heat exchange box and the transverse partitions and longitudinal partitions with transverse and longitudinal slits, and the exhaust passage of the flue gas in the limited structural space is also heat exchange.
  • the length of the channel has been significantly increased, so that the heat exchange efficiency of the stove is significantly improved without reducing or even reducing the volume, reducing the waste of energy.
  • Figure 1 is a perspective view of a preferred embodiment of the oven of the present invention.
  • FIG. 2 is a schematic perspective view of the oven of the embodiment shown in FIG. 1 after a part of the original is omitted for convenience of observation.
  • Figure 3 is a cross-sectional plan view showing the oven of the embodiment of Figure 1 of the present invention.
  • FIG 4 is a perspective view of the heat exchange box portion of the embodiment of Figure 1 of the present invention.
  • Figure 5 is a schematic cross-sectional plan view of the heat exchange box of Figure 4 after omitting the heat sink for convenience of observation.
  • Figure 6 is a perspective exploded view of the heat exchange box of Figure 4.
  • Fig. 7a is a partial perspective view showing the flow state of the first row and the second row of heat pipes in the heat exchange box shown in Fig. 6, wherein some of the elements are omitted for convenience of observation.
  • Figure 7b is a top plan view of Figure 7a.
  • Fig. 8 is a perspective view, partly in perspective, of the third row of heat sinks in the heat exchange box of Fig. 6, wherein some of the elements are omitted for convenience of observation.
  • Figure 9a is a schematic perspective view showing the flow of the fourth row of heat-dissipating tubes in the heat exchange box shown in Figure 6, wherein some of the elements are omitted for convenience of observation.
  • Figure 9b is a top plan view of Figure 9a. as well as,
  • Figure 10 is a circuit diagram of a portion of an electrical device of the present invention.
  • FIGS 1, 2 and 3 show a biomass fuel stove of the present invention.
  • the stove includes a body 1 that can be placed on the ground, the body 1 Includes a combustion box 10 and an auxiliary equipment box 20 .
  • a burner 30 is housed in the bottom of the combustion chamber 10 near the ground, and the burner 30 has a fuel rack 31
  • a side plate 32 extending upward along the periphery of the fuel rack 31 and an air blowing portion 33 located below the fuel rack plate 31.
  • the side plate 32 encloses a combustion zone above the fuel shelf plate 34. .
  • Several venting holes 311 are formed in the fuel rack plate 31 and the side plates 32.
  • the heat exchange box 40 includes a front surface 41 exposed to the outside of the combustion chamber 10, a rear surface 42 opposite the front surface 41, a bottom surface 43 above the burner 30, and a bottom surface 43 an opposite top surface 44, a first side 45, and a second side 46 opposite the first side 45.
  • a top gas outlet 44 is provided with a flue gas outlet 441.
  • two or more rows, two or more heat sinks extending through the front surface 41 and the rear surface 42 are provided. .
  • the heat exchange box 40 has four rows of four heat sinks 47 in each row.
  • a row of heat sinks 47 near the bottom surface 43 are in the first row 471
  • the upper row is the second row 472 and the second row 472 is the third row 473.
  • the transverse partition 48 between the heat sinks 47 is a first transverse partition 481 having a second transverse partition 482 on top and a third transverse partition 483 on the second transverse partition 482.
  • each transverse partition 48 forms a transverse seam 484 with the front face 41 or the back face 42 of the heat exchange box 40, wherein the transverse seams 484 on each adjacent two transverse partitions 48 are different on the front side. 41 One side or the same on the back side 42 side.
  • a longitudinal slit 491 is formed between the second side faces 46, wherein the longitudinal slits 491 on each of the adjacent two longitudinal partitions 49 are different on the side of the first side 45 or on the side of the second side 46.
  • a blower box 50 is connected to the heat sink 47, and a heat dissipating fan 71 can blow into the blow box 50, as shown in FIG.
  • the wind flows out of the heat-dissipating fan 71, flows through the inside of each of the heat-dissipating cylinders 47 from the blower box 50, and passes through the heat-dissipating cylinders 47 to the outside of the combustion box 10.
  • the auxiliary equipment box 20 houses the fuel delivery mechanism 60 and the electrical equipment 70.
  • Fuel delivery mechanism 60 includes a hopper 61, a feed cylinder 62 having one end communicating with the outlet below the hopper 61 and extending into the combustion zone 34 at the other end, and a rotatably contained in the delivery cylinder 62.
  • the fuel auger rod 63 in the middle.
  • the circuit diagram of the electrical device 70 is shown in Figure 10, including a cooling fan 71, a feeding motor 72 that drives the fuel auger rod 63, and a burner that can be directed to the burner.
  • the air blower 73 in the air In the blast zone 33 of 30, the air blower 73 in the air, a blower 74 connected to the flue gas outlet 441 on the top surface 44 of the heat exchange box 40, the power source 75, and a power switch 76 and power indicator light 77.
  • the power supply 75 can be either an AC/DC power supply 751 or a parallel battery 752 as an auxiliary power supply on the AC/DC power supply 751. AC and DC power supply 751 Both the battery and the battery 752 can be powered separately.
  • the power switch 76 is mounted above the auxiliary equipment box 20 to control the power supply to the entire circuit. As shown in Figure 1, the switch indicator light 77 is also mounted on the body 1 Near the power switch 76, it is used to indicate the opening and closing state of the power switch 76.
  • Fuel 80 is a biomass fuel, which is a small particle made by crushing and compressing straw, wood chips, and crop straw.
  • the user can first place the body 1 of the present invention in a stable position on the ground at the desired position, and pour fuel into the hopper 61. 80 particles.
  • the switch indicator light 77 lights up, indicating that the power is on and the stove starts to work.
  • the feeding motor 72 rotates to drive the fuel auger rod 63 to fuel
  • the 80 particles are fed into the burner 30, and the fuel 80 particles fall by gravity on the fuel rack plate 31.
  • the user can take the ignited paper or the alcohol cotton ball from the burner on the body 1 A previously provided furnace door 11 ignites the fuel 80 in the combustion zone 34 of the fuel rack plate 31.
  • the blower 73 starts to blow air into the blast zone 33, and the wind passes through the fuel shelf plate. Vents 311 formed in the side panels 32 enter the combustion zone 34 to provide the required oxygen for the combustion of the fuel 80.
  • fuel 80 When burned to a certain extent, a low concentration of methane gas is generated, which generates a high-temperature flue gas with a flame under the action of the air current generated by the blower 73.
  • the flue gas can only pass through the interdigitated transverse joints 484 and longitudinal slits in the heat exchange box 40. One-way back to the front. During the advancement of the flue gas, the heat in the flue gas will be fully absorbed by the rows of heat dissipating cylinders 47 and dissipated in the indoor air communicating with the interior of the heat dissipating cylinder 47 to complete the heat exchange.
  • the user can disconnect the power switch 76, the switch indicator light 77 is off, and the feed motor 72 The rotation stops and the blower 73 stops. Without new fuel 80 being supplied to the combustion, the fuel in the combustion zone 34 will burn out quickly and the user can open the door 11 and clean the burner 30 The ashes falling inside.
  • the edge portion of the fuel rack plate 31 may be inclined upward at an angle to form a low ground in the middle. Low ground can gather fuel 80 In order to avoid excessive combustion of the edge fuel, the black smoke is not sufficiently generated.

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)

Abstract

L'invention concerne un poêle à combustible biomasse (80) comprenant un corps (1) pouvant être placé sur le sol, le corps (1) comprenant une chambre de combustion (10) et une chambre de dispositifs auxiliaires (20). La chambre de combustion (10) contient un brûleur (30) et une chambre d'échange de chaleur (40) est placée au-dessus du brûleur (30), plus de deux rangées de corps de dissipation de chaleur (47) étant placées dans la chambre d'échange de chaleur (40) avec plus de deux dans chaque rangée pénétrant une face avant (41) et une face arrière (42). Une plaque d'isolation transversale (48) est située toutes les deux rangées de corps de dissipation de chaleur (47) entre celles-ci, et au moins deux plaques d'isolation longitudinales (49) sont placées toutes les deux plaques d'isolation verticales (48) entre celles-ci. La chambre de dispositif auxiliaire (20) contient un mécanisme de transport de combustible (60) et un dispositif électrique (70). Le mécanisme de transport de combustible (60) comprend une trémie (61), un corps de transport de combustible (62) et une tige de poussée de combustible en spirale (63). Le dispositif électrique (70) comprend un moteur de transport de combustible (72), une soufflante (73), un extracteur d'air (74), une alimentation électrique (75) et un interrupteur d'alimentation électrique (76). Le poêle augmente le rendement d'échange de chaleur et réduit le gaspillage d'énergie.
PCT/CN2012/073557 2012-04-05 2012-04-05 Poêle à combustible biomasse WO2013149392A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2012/073557 WO2013149392A1 (fr) 2012-04-05 2012-04-05 Poêle à combustible biomasse
CN201280038741.8A CN104067054A (zh) 2012-04-05 2012-04-05 一种生物质燃料炉具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/073557 WO2013149392A1 (fr) 2012-04-05 2012-04-05 Poêle à combustible biomasse

Publications (1)

Publication Number Publication Date
WO2013149392A1 true WO2013149392A1 (fr) 2013-10-10

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ID=49299929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/073557 WO2013149392A1 (fr) 2012-04-05 2012-04-05 Poêle à combustible biomasse

Country Status (2)

Country Link
CN (1) CN104067054A (fr)
WO (1) WO2013149392A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813039A (en) * 1973-03-26 1974-05-28 G Wells Heat exchanger
US4438756A (en) * 1982-12-13 1984-03-27 Joseph G. Chamberlain Apparatus and method for accomplishing efficient burning of biomass fuel materials
US5383446A (en) * 1991-08-14 1995-01-24 Pyro Industries, Inc. Self concentrating combustion grate for pellet fueled stoves
DE19806257A1 (de) * 1997-02-18 1998-08-20 Karl Stefan Riener Ofen für die Verbrennung von Pellets
CN2514253Y (zh) * 2001-05-14 2002-10-02 南京普鲁卡姆电器有限公司 轻型壁炉取暖器
DE102007010585A1 (de) * 2007-03-05 2008-10-02 Pollner, Tom Wasserregister für einen Ofen, Wärmetauscher hierfür, sowie Verfahren zu deren Herstellung
CN201335626Y (zh) * 2008-10-24 2009-10-28 杭州舒瑞环境科技有限公司 液体废热回收双向节能器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383445A (en) * 1993-09-27 1995-01-24 Tri-Mark Metal Corporation Indirect heater
CN1325000A (zh) * 2000-11-30 2001-12-05 刘峙承 多功能梯层格抽屉式高压蒸汽箱
US7241322B2 (en) * 2003-11-21 2007-07-10 Graham Robert G Pyrolyzing gasification system and method of use
CA2709976C (fr) * 2008-01-07 2014-04-15 Von Gortz & Finger Techn. Enttwicklungs Ges.M.B.H. Generateur de gaz par pyrolyse
CN201203263Y (zh) * 2008-03-28 2009-03-04 宫树同 排管式热风炉
CN101666492B (zh) * 2009-09-30 2011-02-16 张建超 生物质气化燃烧锅炉
CN202048667U (zh) * 2011-04-08 2011-11-23 义乌市安冬电器有限公司 一种锅炉

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813039A (en) * 1973-03-26 1974-05-28 G Wells Heat exchanger
US4438756A (en) * 1982-12-13 1984-03-27 Joseph G. Chamberlain Apparatus and method for accomplishing efficient burning of biomass fuel materials
US5383446A (en) * 1991-08-14 1995-01-24 Pyro Industries, Inc. Self concentrating combustion grate for pellet fueled stoves
DE19806257A1 (de) * 1997-02-18 1998-08-20 Karl Stefan Riener Ofen für die Verbrennung von Pellets
CN2514253Y (zh) * 2001-05-14 2002-10-02 南京普鲁卡姆电器有限公司 轻型壁炉取暖器
DE102007010585A1 (de) * 2007-03-05 2008-10-02 Pollner, Tom Wasserregister für einen Ofen, Wärmetauscher hierfür, sowie Verfahren zu deren Herstellung
CN201335626Y (zh) * 2008-10-24 2009-10-28 杭州舒瑞环境科技有限公司 液体废热回收双向节能器

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