WO2013149433A1 - 一种烹饪炉具 - Google Patents

一种烹饪炉具 Download PDF

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Publication number
WO2013149433A1
WO2013149433A1 PCT/CN2012/076479 CN2012076479W WO2013149433A1 WO 2013149433 A1 WO2013149433 A1 WO 2013149433A1 CN 2012076479 W CN2012076479 W CN 2012076479W WO 2013149433 A1 WO2013149433 A1 WO 2013149433A1
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Prior art keywords
fuel
heat exchange
burner
exchange box
heat
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PCT/CN2012/076479
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English (en)
French (fr)
Inventor
朱宏锋
陈前喜
Original Assignee
Zhu Hongfeng
Chen Qianxi
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Application filed by Zhu Hongfeng, Chen Qianxi filed Critical Zhu Hongfeng
Priority to CN201280038743.7A priority Critical patent/CN104067056A/zh
Publication of WO2013149433A1 publication Critical patent/WO2013149433A1/zh

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24BDOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00Stoves or ranges
    • F24B1/02Closed stoves
    • F24B1/08Closed stoves with fuel storage in a single undivided hopper within stove or range
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24BDOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00Stoves or ranges
    • F24B1/26Stoves with additional provisions for cooking
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24BDOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B13/00Details solely applicable to stoves or ranges burning solid fuels 
    • F24B13/04Arrangements for feeding solid fuel, e.g. hoppers 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24BDOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B5/00Combustion-air or flue-gas circulation in or around stoves or ranges
    • F24B5/06Combustion-air or flue-gas circulation in or around stoves or ranges in or around ranges
    • F24B5/08Combustion-air or flue-gas circulation in or around stoves or ranges in or around ranges around the baking oven
    • F24B5/082Combustion-air or flue-gas circulation in or around stoves or ranges in or around ranges around the baking oven several ovens

Definitions

  • the present invention relates to a cooking stove using biomass fuel, and more particularly to a use A small cooking material made of pulverized pressed straw, wood chips, crop straw, etc. as a fuel and having 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 technical problem to be solved by the present invention is to provide a cooking stove using biomass fuel, which can fully utilize the energy of the fuel compared with the conventional stove.
  • the present invention provides a cooking 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.
  • a transverse slit is formed between the back faces, wherein the transverse slits on each adjacent two transverse partitions are different on the front side or the back side; at least two longitudinal partitions are arranged between each two transverse partitions.
  • Each heat sink of the heat exchange box is provided with a heating drawer, and each heating drawer includes a fixing frame fixed in the heat sink, a slidable carriage mounted on the fixing frame, and a fixed sliding body The lid on the shelf.
  • 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 with a heated drawer in a pulled out condition.
  • FIG. 2 is a perspective view of a perspective view of the embodiment of the present invention shown in FIG. 1 with a portion of the original omitted for convenience of observation, wherein all of the heated drawers are in a pushed-in state.
  • Figure 3 is a schematic cross-sectional plan view of the oven of the embodiment of Figure 1 of the present invention, wherein all of the heated drawers are in a pushed-in state.
  • FIG 4 is a perspective view of the heat exchange box portion of the embodiment of Figure 1 of the present invention, in which only one heated drawer in the pulled-out state is shown.
  • 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 cooking hob of the present invention.
  • the stove uses biomass fuel 80
  • the granules include a body 1 that can be placed on the ground, and the body 1 includes a combustion chamber 10 and an auxiliary equipment box 20.
  • a burner 30 is contained in the combustion chamber 10 at the bottom near the ground.
  • the burner 30 has a fuel rack plate 31, a side plate 32 extending upward along the periphery of the fuel rack plate 31, and an air blowing portion 33 located below the fuel rack plate 31.
  • Side panel 32 A combustion zone 34 is enclosed above the fuel shelf plate 31.
  • 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.
  • each of the heat-dissipating cylinders 47 of the heat exchange box 40 is provided with a heating drawer 50, and each of the heating drawers 50 includes a fixing frame fixed in the heat-dissipating cylinder 47. 51.
  • a slidable carriage 52 disposed on the fixed frame 51 and a cover 53 fixed to the carriage 52.
  • a handle 54 can also be provided on the cover 53.
  • 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 electrical circuit diagram of the electrical device 70 is shown in Figure 10 and includes a feed motor 71 that drives the fuel auger rod 63 and a blower zone that can be directed into the burner 30.
  • blower 72 for internal air supply a blower 73 connected to the flue gas exhaust port 441 on the top surface 44 of the heat exchange box 40, power supply 74, a power switch 75 and power indicator 76.
  • the power source 74 can be either an AC/DC power source 741 or a parallel battery 742 can be used as an auxiliary power source on the AC/DC power source 741.
  • AC and DC power supply 741 and battery 742 All can be powered separately.
  • the power switch 75 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 76 is also mounted on the power switch on the main body 1. Near 75, used to indicate the opening and closing state of the power switch 75.
  • 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 lamp 76 lights up, indicating that the power is on and the stove starts to work.
  • the feed motor 71 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 72 begins to blow air into the blast zone 33, and the wind passes through the fuel shelf plate 31. 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 flowing under the action of the air current generated by the blower 72.
  • each heated drawer 50 can pull each heated drawer 50 and place the food to be heated directly on the carriage 52, or put the food into the container 55 on the carriage 52 as shown in Fig. 4, and then the carriage 52. Push into the heat sink 47.
  • the flue gas can only pass through the interdigitated transverse joints 484 and longitudinal seams in the heat exchange box 40. 491 One-way round trip forward. During the advancement of the flue gas, the heat in the flue gas is fully exchanged with the rows of heat sinks 47, and the food inside the heat sink 47 is heated.
  • the user can disconnect the power switch 75, the switch indicator light 76 is turned off, and the feed motor 71 Stop turning and blower 72 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. The low ground can gather the fuel 80 to avoid excessive combustion of the edge fuel and heat generation.

Abstract

一种烹饪炉具,其使用生物质燃料(80)颗粒,并包括一个可安放于地面上的本体(1),本体(1)包括一个燃烧箱(10)和一个辅助设备箱(20)。燃烧箱(10)内容纳有一个燃烧器(30),燃烧器(30)的上方具有一个热交换箱(40),热交换箱(40)内设有两排以上、每排两个以上贯穿正面和背面的散热筒(47),每两排散热筒(47)之间都有一片横隔板(48),每两片横隔板(48)之间都有至少两片纵隔板。热交换箱(40)的每一个散热筒(47)内设有一个加热抽屉(50)。辅助设备箱(20)内容纳有燃料输送机构(60)和电气设备(70)。燃料输送机构(60)包括一个料斗(61)、送料筒(62)以及燃料螺旋推送杆(63)。电气设备(70)包括送料电机(71)、抽风机(73)、电源(74)和电源开关(75)。该种烹饪炉具在不增加甚至减小了体积的情况下,提升了热交换效率,减少了能量的浪费。

Description

一种烹饪炉具 技术领域
本 发明涉及 一种使用生物质燃料的烹饪炉具,尤其有关于一种使用 由稻草、木屑、农作物秸秆等粉碎压制而成的小颗粒作为燃料并且具有高热交换效率的烹饪炉具 。
背景技术
生物质 燃料是由稻草、木屑、农作物秸秆等粉碎压制而成的小颗粒。生物质燃料作为一种新型的能源因其卫生、环保、高效、经济等优势已经开始逐渐获得广泛的应用。
使用生物质燃料作为烹饪炉具方法,现有的设备多为火焰直接加热的传统方式。使用这种方式进行烹饪的炉具都具有一个燃烧器,燃烧器上方的灶口上摆放一个锅具,对食物的加热通过这个单一的锅具进行。这种食物加热方法最大的缺点就是热交换效率低,不论这个单一的锅具吸收多少热量,剩余的热量都会随尾气排出炉具以外。实际情况是燃烧后排出的气体温度很高,存在着严重的能量浪费现象。
技术问题
本发明所要解决的技术问题是提供一种使用生物质燃料的烹饪炉具,该炉具与传统的炉具相比能够充分的利用燃料的能量。
技术解决方案
为了解决这个技术问题,本发明提供了一种烹饪 炉具,其使用生物质燃料颗粒,并包括一个可安放于地面上的本体,本体包括一个燃烧箱和一个辅助设备箱。 燃烧箱内在靠近地面的底部容纳有一个燃烧 器,燃烧器具有一个燃料架板,一个沿燃料架板周边向上延伸的侧板,以及一个位于燃料架板下方的鼓风区,侧板在燃料架板上方围成燃烧区,燃料架板和侧板上开设有数个通风孔。燃烧器的上方具有一个热交换箱,热交换箱包括一个暴露于燃烧箱之外的正面,一个与正面相对的背面,一个位于燃烧器上方的底面,一个与底面相对的顶面,一个第一侧面,以及一个与第一侧面相对的第二侧面。底面上正对燃烧器处开设有一个烟气进入口,顶面上开设有一个烟气排出口。在热交换箱内设有两排以上、每排两个以上贯穿正面和背面的散热筒,每两排散热筒之间都有一片横隔板,每片横隔板与热交换箱的正面或背面之间形成有一条横缝,其中每相邻两片横隔板上的横缝不同在正面一侧或同在背面一侧;每两片横隔板之间都有至少两片纵隔板,每片纵隔板与热交换箱的第一侧面或第二侧面之间形成有一条纵缝,其中每相邻两片纵隔板上的纵缝不同在第一侧面一侧或同在第二侧面一侧。 热交换箱的每一个散热筒内设有一个加热抽屉,每个加热抽屉包括一个固设于散热筒内的固架、一个可滑动的设于固架上的滑架、以及一个固设于滑架上的盖子。 辅助设备箱内容纳有燃料输送机构和电气设备。燃料输送机构包括一个料斗,一条一端与料斗下方的出口相连通另一端伸入燃烧区中的送料筒,以及一条可转动的容纳于送料筒中的燃料螺旋推送杆。电气设备包括一部驱动燃料螺旋推送杆的送料电机、一部可以向燃烧器内的鼓风区内送风的鼓风机、一台与热交换箱顶面上的烟气排出口相联通的抽风机、电源、和一个电源开关。
有益效果
本发明所带来的有益效果是由于热交换箱内多排散热筒以及带有横缝和纵缝的横隔板和纵隔板结构,在有限的结构空间内烟气的排放通道也就是热交换通道的长度得到了显著的增加,这样在不增加甚至减小了体积的情况下,炉具的热交换效率得到了显著的提升,减少了能量的浪费。
附图说明
图 1 是本发明炉具较佳实施例的立体示意图,其中一个加热抽屉处于拉出状态。
图2是本发明图1所示实施例炉具为观察方便而省略部分原件后的立体部分示意图,其中所有加热抽屉处于推入状态。
图3是本发明图1所示实施例炉具的剖视平面示意图,其中所有加热抽屉处于推入状态。
图4是本发明图1所示实施例中热交换箱部分的立体示意图,其中只显示有一个处于拉出状态的加热抽屉。
图5是图4所示热交换箱为观察方便而省略散热筒后的一个剖视平面部分示意图。
图6是图4所示热交换箱的立体爆炸示意图。
图7a是图6所示热交换箱中第一排和第二排散热筒烟气流动状况的部分立体示意图,其中部分元件为观察方便而省略。
图7b是图7a的俯视平面示意图。
图8是图6所示热交换箱中第三排散热筒烟气流动状况的立体部分示意图,其中部分元件为观察方便而省略。
图9a是图6所示热交换箱中第四排散热筒烟气流动状况的立体部分示意图,其中部分元件为观察方便而省略。
图9b是图9a的俯视平面示意图。以及,
图10是本发明电气设备部分的电路图。
本发明的最佳实施方式
图 1 、 2 和 3 所示为本发明一种烹饪炉具。该炉具使用生物质燃料 80 颗粒,并包括一个可安放于地面上的本体 1 ,本体 1 包括一个燃烧箱 10 和一个辅助设备箱 20 。燃烧箱 10 内在靠近地面的底部容纳有一个燃烧器 30 ,燃烧器 30 具有一个燃料架板 31 ,一个沿燃料架板 31 周边向上延伸的侧板 32 ,以及一个位于燃料架板 31 下方的鼓风区 33 。侧板 32 在燃料架板 31 上方围成燃烧区 34 。燃料架板 31 和侧板 32 上开设有数个通风孔 311 。
再同时参考图 4 、 5 和 6 ,燃烧箱 10 中燃烧器 30 的上方具有一个热交换箱 40 。热交换箱 40 包括一个暴露于燃烧箱 10 之外的正面 41 ,一个与正面 41 相对的背面 42 ,一个位于燃烧器 30 上方的底面 43 ,一个与底面 43 相对的顶面 44 ,一个第一侧面 45 ,以及一个与第一侧面 45 相对的第二侧面 46 。底面 43 上正对燃烧器 30 处开设有一个烟气进入口 431 ,顶面 44 上开设有一个烟气排出口 441 。在热交换箱 40 内设有两排以上、每排两个以上贯穿正面 41 和背面 42 的散热筒 47 。在图示的较佳实施例中,热交换箱 40 内设有 4 排、每排 4 个共 16 个散热筒 47 。靠近底面 43 的一排散热筒 47 为第一排 471 ,其上面一排为第二排 472 ,第二排 472 上面为第三排 473 。每两排散热筒 47 之间都有一片横隔板 48 ,第一排 471 与第二排 472 散热筒 47 之间的横隔板 48 为第一横隔板 481 ,其上面一片为第二横隔板 482 ,第二横隔板 482 上面为第三横隔板 483 。具体如图 5 所示,每片横隔板 48 与热交换箱 40 的正面 41 或背面 42 之间形成有一条横缝 484 ,其中每相邻两片横隔板 48 上的横缝 484 不同在正面 41 一侧或同在背面 42 一侧。具体如图 6 所示,每两片横隔板 48 之间都有至少两片纵隔板 49 ,每片纵隔板 49 与热交换箱 40 的第一侧面 45 或第二侧面 46 之间形成有一条纵缝 491 ,其中每相邻两片纵隔板 49 上的纵缝 491 不同在第一侧面 45 一侧或同在第二侧面 46 一侧。具体如图 1 、 2 、 3 和 4 所示,热交换箱 40 的每一个散热筒 47 内设有一个加热抽屉 50 ,每个加热抽屉 50 包括一个固设于散热筒 47 内的固架 51 、一个可滑动的设于固架 51 上的滑架 52 、以及一个固设于滑架 52 上的盖子 53 。盖子 53 上还可以设有一个拉手 54 。
如图 2 和 3 所示,辅助设备箱 20 内容纳有燃料输送机构 60 和电气设备 70 。燃料输送机构 60 包括一个料斗 61 ,一条一端与料斗 61 下方的出口相连通另一端伸入燃烧区 34 中的送料筒 62 ,以及一条可转动的容纳于送料筒 62 中的燃料螺旋推送杆 63 。电气设备 70 的电路图如图 10 所示,包括一台驱动燃料螺旋推送杆 63 的送料电机 71 、一台可以向燃烧器 30 内的鼓风区 33 内送风的鼓风机 72 、一台与热交换箱 40 顶面 44 上的烟气排出口 441 相联通的抽风机 73 、电源 74 、一个电源开关 75 和电源指示灯 76 。电源 74 既可以是交直流电源 741 ,也可以在交直流电源 741 上并联蓄电池 742 作为辅助电源。交直流电源 741 和蓄电池 742 均能够单独供电。电源开关 75 安装于辅助设备箱 20 之上,可以控制整个电路的供电。具体如图 1 所示,开关指示灯 76 也安装于本体 1 之上电源开关 75 附近,用来指示电源开关 75 的开合状态。
燃料 80 为生物质燃料,是由稻草、木屑、农作物秸秆等粉碎压制而成的小颗粒。
在使用时,使用者可以先在所需位置的地面上将本发明炉具的本体 1 摆放平稳,向料斗 61 内倒入燃料 80 颗粒。当使用者按下电源开关 75 后,开关指示灯 76 亮起,表示电源接通,炉具开始工作。此时送料电机 71 转动,驱动燃料螺旋推送杆 63 将燃料 80 颗粒送入燃烧器 30 中,燃料 80 颗粒在重力作用下落在燃料架板 31 上。此时,使用者可以将点燃的纸张或酒精棉球等从本体 1 上燃烧器 30 前设置的一个炉门 11 将燃料架板 31 上燃烧区 34 内的燃料 80 点燃。也是在同时,鼓风机 72 开始向鼓风区 33 内送风,风通过燃料架板 31 和侧板 32 上开设的通风孔 311 进入燃烧区 34 ,为燃料 80 的燃烧提供所需的氧气。当燃料 80 燃烧到一定程度时会产生低浓度的甲烷气体,这些甲烷气体在鼓风机 72 产生的气流的作用下产生带有火焰的流动的高温烟气。这些高温烟气从燃烧器 30 上行,经热交换箱 40 底部的烟气进入口 431 进入热交换箱 40 ,在抽风机 73 的带动下最后经顶面 44 上的烟气排出口 441 流出热交换箱 40 。使用者可以拉开每个加热抽屉 50 ,将需要加热的食物直接放入滑架 52 上,或者具体如图 4 所示将食物放入滑架 52 上的容器 55 中,然后将滑架 52 推入散热筒 47 中。如图 5 、 7a 、 7b 、 8 、 9a 和 9b 中的箭头所示,烟气在热交换箱 40 内只能通过交错的横缝 484 和纵缝 491 单向迂回前行。在烟气的前行过程中,烟气中的热量将与各排散热筒 47 充分交换,并对散热筒 47 中加热抽屉 50 内部的食物进行加热。
当需要停止燃烧的时候,使用者可以断开电源开关 75 ,开关指示灯 76 熄灭,送料电机 71 停止转动,鼓风机 72 停止。没有新的燃料 80 供给燃烧,燃烧区 34 内的燃料将很快燃尽,使用者即可打开箱门 11 ,清理从燃烧器 30 内落下的灰烬。燃料架板 31 的边缘部分可以向上偏斜有一定角度,在中部形成一片低地。低地可以聚拢燃料 80 ,从而避免边缘燃料燃烧受热不充分产生黑烟。

Claims (1)

  1. 1. 一种烹饪 炉具,其特征在于使用生物质燃料( 80 )颗粒作为燃料,并包括一个可安放于地面上的本体( 1 ),本体( 1 )包括一个燃烧箱( 10 )和一个辅助设备箱( 20 );
    燃烧箱 ( 10 ) 内在靠近地面的底部容纳有一个燃烧 器( 30 ),燃烧器( 30 )具有一个燃料架板( 31 ),一个沿燃料架板( 31 )周边向上延伸的侧板( 32 ),以及一个位于燃料架板( 31 )下方的鼓风区( 33 ),侧板( 32 )在燃料架板( 31 )上方围成燃烧区( 34 ),燃料架板( 31 )和侧板( 32 )上开设有数个通风孔( 311 );
    燃烧器( 30 )的上方具有一个热交换箱( 40 ),热交换箱( 40 )包括一个暴露于燃烧箱( 10 )之外的正面( 41 ),一个与正面( 41 )相对的背面( 42 ),一个位于燃烧器( 30 )上方的底面( 43 ),一个与底面( 43 )相对的顶面( 44 ),一个第一侧面( 45 ),以及一个与第一侧面( 45 )相对的第二侧面( 46 ),底面( 43 )上正对燃烧器( 30 )处开设有一个烟气进入口( 431 ),顶面( 44 )上开设有一个烟气排出口( 441 ),在热交换箱( 40 )内设有两排以上、每排两个以上贯穿正面( 41 )和背面( 42 )的散热筒( 47 ),每两排散热筒( 47 )之间都有一片横隔板( 48 ),每片横隔板( 48 )与热交换箱( 40 )的正面( 41 )或背面( 42 )之间形成有一条横缝( 484 ),其中每相邻两片横隔板( 48 )上的横缝( 484 )不同在正面( 41 )一侧或同在背面( 42 )一侧,每两片横隔板( 48 )之间都有至少两片纵隔板( 49 ),每片纵隔板( 49 )与热交换箱( 40 )的第一侧面( 45 )或第二侧面( 46 )之间形成有一条纵缝( 491 ),其中每相邻两片纵隔板( 49 )上的纵缝( 491 )不同在第一侧面( 45 )一侧或同在第二侧面( 46 )一侧;
    热交换箱( 40 ) 的每一个散热筒( 47 ) 内设有一个加热抽屉( 50 ) ,每个加热抽屉( 50 ) 包括一个固设于散热筒( 47 ) 内的固架( 51 ) 、一个可滑动的设于固架( 51 ) 上的滑架( 52 ) 、以及一个固设于滑架( 52 ) 上的盖子( 53 );
    辅助设备箱( 20 )内容纳有燃料输送机构( 60 )和电气设备( 70 );
    燃料输送机构( 60 )包括一个料斗( 61 ),一条一端与料斗( 61 )下方的出口相连通另一端伸入燃烧区( 34 )中的送料筒( 62 ),以及一条可转动的容纳于送料筒( 62 )中的燃料螺旋推送杆( 63 );
    电气设备( 70 )包括一部驱动燃料螺旋推送杆( 63 )的送料电机( 71 )、一部可以向燃烧器( 30 )内的鼓风区( 33 )内送风的鼓风机( 72 )、一台与热交换箱( 40 )顶面( 44 )上的烟气排出口( 441 )相联通的抽风机( 73 )、电源( 74 )、和一个电源开关( 75 )。
PCT/CN2012/076479 2012-04-05 2012-06-05 一种烹饪炉具 WO2013149433A1 (zh)

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