WO2015139483A1 - 燃气与高温空气混合燃烧器 - Google Patents

燃气与高温空气混合燃烧器 Download PDF

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Publication number
WO2015139483A1
WO2015139483A1 PCT/CN2014/092989 CN2014092989W WO2015139483A1 WO 2015139483 A1 WO2015139483 A1 WO 2015139483A1 CN 2014092989 W CN2014092989 W CN 2014092989W WO 2015139483 A1 WO2015139483 A1 WO 2015139483A1
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Prior art keywords
burner
mixed gas
annular
fire
temperature air
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PCT/CN2014/092989
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English (en)
French (fr)
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杨锡奇
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江门佳利华实业有限公司
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on ranges

Definitions

  • the present invention relates to a burner, and more particularly to a gas and high temperature air mixing burner.
  • Gas stoves are widely used in hotels, institutions, schools, military and other canteens.
  • the core components of the burners are burners.
  • the design and quality of the burners determine the technical indicators such as the effect of use and energy consumption.
  • the traditional gas burners have lower thermal efficiency and the energy consumption index is not ideal. Further, in an application file previously filed by the present applicant, it is described that a fire hole is provided at the top of the burner main body, and the thermal efficiency thereof is improved, but the optimum state has not yet been achieved.
  • the present invention provides a gas and high temperature air mixing burner with further improved thermal efficiency, low smoke CO emission, and safe use.
  • a combusting burner for a gas and a high-temperature air comprising a main fire burner, wherein the main body of the main fire burner has a cylindrical shape, the inside of which is an annular cavity, the central portion is vertically penetrated to form a hollow portion, and the lower portion of the main body is penetrated by two sides.
  • a high temperature mixed gas pipe extending into the annular cavity, the nozzle of the high temperature mixed gas pipe is curved, the mixed gas is output through the high temperature mixed gas pipe and forms a rotating vortex in the annular cavity, and the bottom of the annular cavity is provided with high temperature resistance Filling the material and placing it under the nozzle of the high-temperature mixed gas pipe, the main body is provided with a mixed gas ejection hole, the mixed gas ejection hole is obliquely directed upward above the hollow portion, and the burner body is formed above the main body of the main fire burner Combustion chamber.
  • an upper portion of the main body of the main fire burner is provided with an annular slab, and a vertical wall surface of the annular sill is disposed with a mixed gas discharge hole communicating with the annular cavity, the mixing The orifice of the gas ejection orifice is inclined upwardly above the annular sinking table, and the annular sunken table constitutes the combustion chamber of the burner.
  • the upper portion of the main fire burner is provided with a fire ring, the orifice of the mixed gas discharge hole is inclined upwardly to the fire ring, and the fire ring and the vertical wall surface constitute a combustion chamber of the burner .
  • the body of the fire ring and the main fire burner is a split type assembly, and the fire ring is placed on the platform of the main body.
  • the mixed gas ejection hole has a single-turn single-layer structure on the vertical wall surface, and the mixed gas ejection holes have the same aperture and a high degree of uniformity, and are equally arranged in an orderly manner on the vertical wall surface.
  • the lower end of the hollow portion of the main fire burner is provided with an annular surrounding plate, and the hollow portion and the inner space of the annular surrounding plate are provided with an ignition burner and an ignition device.
  • an upper end of the ignition device is provided with an ignition needle and a flame detecting needle.
  • annular surrounding plate is provided with an air guiding hole and an ignition device fixing hole.
  • the invention has the beneficial effects that the burner can greatly improve the thermal efficiency of the gas stove, and greatly reduce the CO emission in the flue gas, and further promote the energy-saving and environmental protection technology of the gas cooker product.
  • Figure 1 is a schematic cross-sectional structural view of a main fire burner of the present invention
  • Figure 2 is a schematic view showing the mounting structure and the mixed airflow direction of the main fire burner of the present invention
  • Figure 3 is an enlarged schematic view showing the structure of the mixed gas ejection hole of the present invention.
  • Figure 4 is a schematic cross-sectional view of the main body of the main fire burner of the present invention.
  • Figure 5 is a schematic exploded view showing the structure of the ignition burner of the present invention.
  • Figure 6 is a schematic view showing the overall structure of the main burner and the cooker of the present invention.
  • the gas and high temperature air mixing burner of the present invention comprising a main fire burner, has a main body 1 which is cylindrical and made of a high temperature resistant metal material, and is provided with an annular cavity 11 and a central portion thereof.
  • the hollow portion 12 is formed through the upper and lower sides; the lower portion of the main body 1 penetrates the two high-temperature mixed gas pipes 2 and extends into the annular cavity 11, and the nozzle 21 of the high-temperature mixed gas pipe 2 has a curved shape and is mixed.
  • the gas is outputted through the high temperature mixed gas pipe 2 and forms a swirling vortex in the annular cavity 11;
  • the bottom of the annular cavity 11 is provided with a high temperature resistant filling material 3 and placed under the nozzle 21 of the high temperature mixed gas pipe 2,
  • the high temperature resistant filling material 3 is a high temperature resistant fireproof cotton, which reduces the volume of the annular cavity 11 and functions to prevent tempering, pulse vibration and silencing;
  • the main body 1 has a mixed gas ejection hole 18, and the mixed gas ejection hole 18
  • the upper portion of the main body 1 is obliquely directed upward, so that the area constitutes part or all of the combustion chamber of the burner, and the gas is ejected through the mixed gas ejection hole 18, and a fire ring can be formed during combustion.
  • an upper portion of the main body 1 of the main fire burner is provided with an annular sunken table 15, and a vertical air jet surface 151 of the annular sunken table 15 is disposed with a mixed air spray communicating with the annular cavity 11
  • the outlet hole 18, the orifice of the mixed gas discharge port 18 is inclined upwardly directed upward of the annular stage 15, and the annular stage 15 constitutes a combustion chamber of the burner.
  • the upper portion of the main fire burner is provided with a fire ring 6, and the orifice of the mixed gas ejection hole 18 is inclined upwardly to the fire.
  • Ring 6, the vertical wall surface 151 of the annular countersunk 15 and the fire ring 6 constitute a combustion chamber of the burner, the fire ring 6 and the main body 1 of the main fire burner are separate components, and the fire ring 6 is placed on the platform 14 of the main body 1.
  • the mixed gas ejection hole 18 is laterally inclined with the vertical wall surface 151 (see FIG. 3 for details), and has a single-turn single-layer structure, the same aperture and the same height, and the intervals are equally and orderly arranged. On the wall 151.
  • the lower end of the hollow portion 12 of the main fire burner is provided with an annular surrounding plate 13 in which the ignition burner 7 and the ignition device 5 are mounted in the inner space of the hollow portion 12 and the annular surrounding plate 13, An ignition needle 51 and a flame detecting needle 52 are provided at the upper end of the ignition device 5.
  • the mixed gas is ejected from the mixed gas ejection hole 18, and forms a swirling fire ring with the vertical wall surface 151 and the ring of fire 6, and the hollow portion 12 and the annular table of the main fire burner 15 Provide channels and space for secondary oxygen supply.
  • the annular shroud 13 is provided with a plurality of air guiding holes 131 and an ignition device fixing hole 132.
  • the main fire burner 100 is installed in the furnace 400, and is matched with the air blowing device 800 and the electronic control unit 900 to form a gas stove product.
  • a fully premixed automatic control gas furnace equipped with the above-described main fire burner 100 further includes a furnace 400, a blower device 800, and a gas pipe.
  • the main fire burner 100 is installed in the middle of the furnace, the gas pipeline is provided with a gas valve, and the gas valve outlet is respectively connected with the Changming fire gas pipe and the main fire burner 100 nozzle, the nozzle extends into the center of the front end of the mixing crucible, and the other end of the mixing pipe and the main fire burner 100 connected;
  • the furnace 400 is a hollow double-layer stainless steel structure, the furnace 400 is provided with an inlet and an outlet, the air inlet is connected to the air blowing device 800 through the air duct, and the air outlet is connected to the mixing tube at the root of the gas nozzle through the hot air duct to form a mixing tube. Enter the hot air passage of the mixing tube.
  • the air first enters the furnace 400 to preheat the interlayer, and then fully mixes with the gas and then ejects from the burner
  • the gas and high-temperature air mixed burner and the igniting burner of the present invention are mixed with the high-temperature air, and then enter the annular chamber 11 from the nozzle 21 of the high-temperature mixed gas pipe 2, and then sprayed from the mixed gas.
  • the outlet hole 18 is ejected and further mixed with air above the hollow portion 12, and the rotating flame during combustion enters the combustion chamber, that is, the coil 6 surrounds the space, thereby achieving efficient heating.
  • the ignition burner 7 is provided with a nozzle 71, an air ejector hole 72 and a beveled fire hole 73.
  • the ignition burner 7 is used in conjunction with the main fire burner 100 to further improve the use effect of the main fire burner 100.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

一种燃气与高温空气混合燃烧器，包括主火燃烧器（100），主火燃烧器（100）的主体（1）为圆柱状，其内部为环形腔膛（11），中心部上下贯通形成中空部（12）。主体（1）下部两侧贯通有两条高温混合气管（2），其延伸至环形腔膛（11）中。高温混合气管（2）的管口（21）处为弯曲形状，混合气经由高温混合气管（2）输出并于环形腔膛（11）形成旋转涡流。环形腔膛（11）底部设置有耐高温填充材料，并放置在高温混合气管（2）的管口（21）下方。主体（1）上设置有混合气喷出孔（18），混合气喷出孔（18）斜向上指向中空部（12）的上方。主火燃烧器（100）的主体（1）上方构成燃烧器的燃烧室。该燃烧器提高了炉灶的热效率并降低了烟气中的CO的排放量。

Description

燃气与高温空气混合燃烧器
技术领域
本发明涉及一种燃烧器，特别是一种燃气与高温空气混合燃烧器。
背景技术
燃气炉灶广泛使用于酒店和机关、学校、部队等食堂等场所，其核心部件为燃烧器，燃烧器的设计、质量优劣，决定了其使用效果、能耗高低等技术指标。
目前，传统燃气燃烧器的热效率较低，能耗指标并不理想。另外，在本申请人于早前提交的一份申请文献中，记载了一种其火孔设置于炉头主体顶部，其热效率有所提高，但是，仍未有达到最理想的状态。
发明内容
为了解决上述技术的不足，本发明提供一种热效率进一步提高、烟气CO排放量低、使用安全的燃气与高温空气混合燃烧器。
燃气与高温空气混合燃烧器，包括主火燃烧器，所述主火燃烧器的主体为圆柱状，其内部为环形腔膛，中心部上下贯通形成中空部，所述主体下部两侧贯通有两条高温混合气管，并延伸至环形腔膛中，所述高温混合气管的管口处为弯曲形状，混合气经由高温混合气管输出并于环形腔膛形成旋转涡流，环形腔膛底部设置有耐高温填充材料，并放置在高温混合气管的管口下方，主体上设置有混合气喷出孔，所述混合气喷出孔斜向上指向中空部的上方，主火燃烧器的主体上方构成燃烧器的燃烧室。
作为上述技术方案的改进，所述主火燃烧器的主体上部设置有一环形沉台，所述环形沉台的立壁面上布置有与所述环形腔膛连通的混合气喷出孔，所述混合气喷出孔的孔口向上倾斜指向环形沉台上方，环形沉台组成燃烧器的燃烧室。
作为上述技术方案的进一步改进，所述主火燃烧器的上部设置有火圈，所述混合气喷出孔的孔口向上倾斜指向所述火圈，火圈与立壁面组成燃烧器的燃烧室。
进一步，所述火圈与主火燃烧器的主体为分体式组件，火圈置于所述主体的平台上。
进一步，所述混合气喷出孔在所述立壁面为单圈单层结构，混合气喷出孔的孔径相同并高度一致，并间隔均等有序地布置在立壁面上。
进一步，所述主火燃烧器的中空部下端设置有环形围板，中空部与所述环形围板的内空间安装有点火燃烧器和点火装置。
进一步，所述点火装置上端设置有点火针和火焰检测针。
进一步，所述环形围板上开有空气导流孔和点火装置固定孔。
本发明的有益效果是：此燃烧器可大幅度提高燃气炉灶的热效率，并大幅度降低烟气中CO的排放量，进一步推动燃气灶具产品节能环保技术向前发展。
附图说明
下面结合附图和具体实施方式对本发明作进一步详细的说明。
图1是本发明主火燃烧器的剖面结构示意图；
图2是本发明主火燃烧器的安装结构及混合气流向示意图；
图3是本发明混合气喷出孔的结构放大示意图；
图4是本发明主火燃烧器的主体剖面结构示意图；
图5是本发明点火燃烧器的结构分解示意图；
图6是本发明主火燃烧器与炉灶的整体结构示意图。
具体实施方式
本发明的燃气与高温空气混合燃烧器，参照附图1，包括主火燃烧器，其主体1为圆柱状并由耐高温的金属材料制成，其内部设置有环形腔膛11，而中心部上下贯通形成中空部12；所述主体1的下部两侧贯通两条高温混合气管2，并延伸至所述环形腔膛11中，所述高温混合气管2的管口21处为弯曲形状，混合气体经由高温混合气管2输出并于环形腔膛11形成旋转涡流；环形腔膛11的底部设有耐高温填充材料3，并放置在高温混合气管2的管口21下方，所述耐高温填充材料3为耐高温防火棉，缩小了环形腔膛11的容积，起到防回火、脉冲震动及消音的作用；所述主体1上有混合气喷出孔18，所述混合气喷出孔18斜向上指向中空部12即主体1的上方，使该区域构成燃烧器燃烧室的局部或全部，气体经由混合气喷出孔18喷出，燃烧时可形成火力圈。
作为上述实施方式的改进，优选地，主火燃烧器的主体1上部设置有一环形沉台15，所述环形沉台15的立壁面151上布置有与所述环形腔膛11连通的混合气喷出孔18，混合气喷出孔18的孔口向上倾斜指向所述环形沉台15的上方，环形沉台15组成燃烧器的燃烧室。
作为上述实施方式的进一步改进，参照附图一、附图二和附图三，主火燃烧器的上部设置有一火圈6，所述混合气喷出孔18的孔口向上倾斜指向所述火圈6，环形沉台15的立壁面151与火圈6组成燃烧器的燃烧室，所述火圈6与主火燃烧器的主体1为分体式组件，火圈6置于主体1的平台14上，所述混合气喷出孔18与立壁面151成横向斜角状（具体参见图3所示），且为单圈单层结构，其孔径相同并高度一致，间隔均等有序地布置在立壁面151上。
进一步，参照附图1，所述主火燃烧器的中空部12下端设置有环形围板13，中空部12与所述环形围板13的内空间中安装有点火燃烧器7和点火装置5，点火装置5上端设置有点火针51和火焰检测针52。
参照附图2，混合气从所述混合气喷出孔18喷出，并与所述立壁面151及火圈6形成漩涡式的火力圈，而主火燃烧器的中空部12和环形沉台15提供二次供氧的渠道与空间。
进一步，参照附图4，所述环形围板13上开有数个空气导流孔131和点火装置固定孔132。
如附图6所示，本发明的一种实施例，主火燃烧器100安装于炉膛400中，并与鼓风装置800和电控组件900等配套成燃气炉具产品。
如附图6所示，安装有上述主火燃烧器100的全预混自动控制燃气炉，其中还包含炉膛400、鼓风装置800、燃气管道。炉膛中部安装有主火燃烧器100，燃气管道设有气阀，气阀出口分别连接常明火气管和主火燃烧器100喷嘴，喷嘴伸入混合膛前端中央，混合管另一端与主火燃烧器100连通；炉膛400为中空的双层不锈钢结构，炉膛400夹层设有进、出风口，进风口通过风管连接鼓风装置800，出风口通过热风管连通燃气喷嘴根部处的混合管，形成进入混合管的热空气通道。工作时空气先进入炉膛400夹层预热，再与燃气充分混合后从炉头喷出，使得燃烧速度快，火焰温度高。
本发明的燃气与高温空气混合燃烧器及点火燃烧器在正常运行时，燃气与高温空气混合后，先从高温混合气管2的管口21进入环形腔膛11中，然后从所述混合气喷出孔18喷出，并在中空部12的上方进一步与空气进行混合，燃烧时的旋转火焰进入燃烧室即火圈6围绕空间内，从而达成高效加热。
参照附图5，点火燃烧器7设置有喷嘴71、空气引射孔72和斜面火孔73，点火燃烧器7与主火燃烧器100配套使用，进一步完善了主火燃烧器100的使用效果。
以上所述仅为本发明的优先实施方式，只要以基本相同手段实现本发明目的的技术方案都属于本发明的保护范围之内。

Claims (8)

  1. 燃气与高温空气混合燃烧器，其特征在于：包括主火燃烧器，所述主火燃烧器的主体为圆柱状，其内部为环形腔膛，中心部上下贯通形成中空部，所述主体下部两侧贯通有两条高温混合气管，并延伸至环形腔膛中，所述高温混合气管的管口处为弯曲形状，混合气经由高温混合气管输出并于环形腔膛形成旋转涡流，环形腔膛底部设置有耐高温填充材料，并放置在高温混合气管的管口下方，主体上设置有混合气喷出孔，所述混合气喷出孔斜向上指向中空部的上方，主火燃烧器的主体上方构成燃烧器的燃烧室。
  2. 根据权利要求1所述的燃气与高温空气混合燃烧器，其特征在于：所述主火燃烧器的主体上部设置有一环形沉台，所述环形沉台的立壁面上布置有与所述环形腔膛连通的混合气喷出孔，所述混合气喷出孔的孔口向上倾斜指向环形沉台上方，环形沉台组成燃烧器的燃烧室。
  3. 根据权利要求1或者2所述的燃气与高温空气混合燃烧器，其特征在于：所述主火燃烧器的上部设置有火圈，所述混合气喷出孔的孔口向上倾斜指向所述火圈，火圈与立壁面组成燃烧器的燃烧室。
  4. 根据权利要求3所述的燃气与高温空气混合燃烧器，其特征在于：所述火圈与主火燃烧器的主体为分体式组件，火圈置于所述主体的平台上。
  5. 根据权利要求3所述的燃气与高温空气混合燃烧器，其特征在于：所述混合气喷出孔在所述立壁面为单圈单层结构，混合气喷出孔的孔径相同并高度一致，并间隔均等有序地布置在立壁面上。
  6. 根据权利要求3所述的燃气与高温空气混合燃烧器，其特征在于：所述主火燃烧器的中空部下端设置有环形围板，中空部与所述环形围板的内空间安装有点火燃烧器和点火装置。
  7. 根据权利要求6所述的燃气与高温空气混合燃烧器，其特征在于：所述点火装置上端设置有点火针和火焰检测针。
  8. 根据权利要求6所述的燃气与高温空气混合燃烧器，其特征在于：所述环形围板上开有空气导流孔和点火装置固定孔。
PCT/CN2014/092989 2014-03-17 2014-12-04 燃气与高温空气混合燃烧器 WO2015139483A1 (zh)

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CN106545882A (zh) * 2015-09-21 2017-03-29 关隆股份有限公司 燃烧装置及其火焰感应组件

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