WO2017124655A1 - 一种醇基液体燃料双相自雾化工业型燃烧器 - Google Patents

一种醇基液体燃料双相自雾化工业型燃烧器 Download PDF

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Publication number
WO2017124655A1
WO2017124655A1 PCT/CN2016/079349 CN2016079349W WO2017124655A1 WO 2017124655 A1 WO2017124655 A1 WO 2017124655A1 CN 2016079349 W CN2016079349 W CN 2016079349W WO 2017124655 A1 WO2017124655 A1 WO 2017124655A1
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Prior art keywords
alcohol
liquid fuel
based liquid
phase
gasification
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PCT/CN2016/079349
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English (en)
French (fr)
Inventor
冯敏昌
杨范斌
杨毅
林君伟
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福建大为能源有限公司
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Publication of WO2017124655A1 publication Critical patent/WO2017124655A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/44—Preheating devices; Vaporising devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/44—Preheating devices; Vaporising devices
    • F23D11/441—Vaporising devices incorporated with burners
    • F23D11/448—Vaporising devices incorporated with burners heated by electrical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2202/00—Liquid fuel burners

Definitions

  • the present invention relates to the field of industrial fuel combustion technology, and in particular to an industrial burner generally applicable to the combustion of alcohol-based liquid fuels.
  • Alcohol-based fuels are fuels mainly composed of alcohols (such as methanol). They exist in liquid form at normal temperature and pressure. They are environmentally friendly clean energy that governments are promoting. In the face of depletion of petrochemical energy, alcohol-based fuels are The most promising new alternative energy source is favored by enterprises in various countries.
  • alcohol-based fuels In the existing liquid fuel atomization combustion technology, there is no technology to adapt to the characteristics of alcohol-based fuel, so that the combustion effect of alcohol-based liquid fuel can meet the application requirements of the industrial field. In order to fully atomize the fuel and reduce the atomized particles, the easier it is to mix well with the combustion air, the liquid fuel can be completely burned.
  • the current pressure atomization technology, mechanical atomization technology, and medium atomization technology are used for alcohol base.
  • the fuel effect is not ideal, and it can not achieve complete combustion.
  • the atomized combustion of alcohol-based liquid fuels has insufficient combustion, low combustion intensity, low flame temperature, basically cannot meet industrial combustion requirements, and the equipment is complicated. There are many failures.
  • the alcohol-based fuel gasification combustion effect is good, in high-power applications, the large-flow gasification alcohol-based fuel equipment is complicated and costly, so the complete gasification burner is generally only suitable for burners below 300 kW.
  • the object of the present invention is to provide an alcohol-based liquid fuel two-phase self-ignition burner, expand the application range of the alcohol-based fuel, and lay a foundation for the high-power application of the alcohol-based liquid fuel in industrial furnaces and boilers.
  • An alcohol-based liquid fuel two-phase self-atomizing industrial burner comprises a cooperating burner body, an alcohol-based liquid fuel delivery device and an alcohol-based liquid fuel gasification delivery device, wherein the burner body comprises: a burner housing a burner inlet is arranged on the burner casing, and an atomization combustion component is arranged in the burner casing; the alcohol-based liquid fuel gasification conveying device comprises: a phase changer, an electric heating element and a gasification in the phase changer a tube, one end of the gasification tube extends out of the phase changer to form an inlet of the gasification tube for input of the alcohol-based liquid fuel, and the other end of the gasification tube extends out of the phase changer to form a gasification delivery tube to output the vaporized alcohol-based fuel gas.
  • the atomizing combustion component is formed into the body of the burner to form an atomizing medium.
  • gasification tube 33 provided in the phase changer 31 is a coil structure, and the gasification tube 33 and the electric heating element 32 are integrally cast in the cast aluminum heat equalizing block to uniformly heat the gasification tube.
  • gasification tube and the electric heating element are set to one or more branches, in parallel or in series according to the power requirement, and the electric heating element 32 is a single-ended or double-ended metal tube.
  • the atomization combustion assembly includes an air swirling plate, an ignition needle, and a two-phase atomizing nozzle
  • the alcohol-based liquid fuel gasification conveying device transports the vaporized alcohol-based fuel gas to the double Phase atomizing nozzle, ignition needle ignition initial combustion After the initial combustion flame is established, another alcohol-based liquid fuel delivery device transports the alcohol-based liquid fuel to the two-phase atomizing nozzle, and the gasified alcohol-based fuel gas is atomized and burned.
  • the end of the electric heating element protrudes from the cast aluminum heat equalizing block and is mounted with an electrode.
  • the burner housing is provided with a burner mounting flange.
  • phase changer is provided with a temperature detector.
  • the air swirling plate air swirling plate is further provided with a fire detecting needle.
  • the invention adopts the two-phase atomizing burner of the same medium, and realizes the gasification of the alcohol-based fuel medium stably and reliably by the cast aluminum soaking block, thereby ensuring efficient gasification of the alcohol-based fuel gas phase medium after gasification.
  • the alcohol-based liquid fuel is fully atomized to reduce the atomized particles and fully mix with the combustion air to ensure that the alcohol-based liquid fuel reaches complete combustion, meets the requirements of industrial combustion, and can adapt to the demand of industrial high-power combustion.
  • Figure 1 is a schematic view of the structure of the present invention.
  • an alcohol-based liquid fuel two-phase self-atomizing industrial burner comprises a cooperating burner body 1, an alcohol-based liquid fuel delivery device 2 and an alcohol-based liquid fuel gasification delivery device 3, wherein
  • the burner body 1 includes a burner housing 11 having a fan inlet 12 disposed therein, and an atomization combustion assembly 13 disposed in the burner housing 11;
  • the alcohol-based liquid fuel vaporization delivery device 3 includes:
  • the phase changer 31 is provided with an electric heating element 32 and a gasification tube 33.
  • One end of the gasification tube 33 extends out of the phase changer 31 to form a gasification tube inlet 331 for input of alcohol-based liquid fuel, and the gasification tube The other end extends out of the phase changer 31 to form a gasification delivery pipe 332, and outputs the vaporized alcohol-based fuel gas to the burner body 1 for ignition with the atomizing combustion assembly 13.
  • the phase changer 31 is provided with a gasification tube 33, which is a coil structure, and the gasification tube 33 and the electric heating element 32 are integrally cast in a cast aluminum heat block to vaporize it.
  • the tube is heated evenly.
  • the gasification tube 33 and the electric heating element 32 are set to one or more according to the power requirement, and the parallel or series connection may be adopted, and the heat-insulating layer may be sequentially coated on the outside of the cast aluminum heat block. And insulation shell.
  • the atomizing combustion assembly 13 includes an air swirling plate 131, an ignition needle 132, and a two-phase atomizing nozzle 133 that cooperate with each other.
  • the alcohol-based liquid fuel gasification conveying device 3 will be suitable for combustion.
  • the alcohol-based liquid fuel is delivered to the two-phase atomizing nozzle 133, and the ignition needle 132 is ignited for initial combustion.
  • the alcohol-based liquid fuel delivery device 2 delivers the alcohol-based liquid fuel to the two-phase atomizing nozzle 133, and the vaporized alcohol-based fuel gas is atomized and burned.
  • the end of the electric heating element 32 protrudes from the cast aluminum heat equalizing block and is mounted with the electrode 321.
  • the burner housing 11 is provided with a burner mounting flange 111.
  • the phase changer 31 is provided with a temperature detector 311 to ensure that the temperature of the phase changer is detected from time to time and the phase change temperature is adjusted by the controller.
  • the air swirling plate air swirling plate 131 is further provided with a fire detecting needle 134, and the other end of the fire detecting needle 134 and the ignition needle 133 protrudes out of the burner body and mounts an electrode.
  • the cast aluminum heat block and the electric heating element and the gasification tube are integrally molded, and the cast aluminum heat block is heated to a suitable gasification temperature by the electrode connected to the electric heating element (detected and controlled by the temperature detector) ), opening the liquid fuel inlet control valve to the phase changer, the gasification tube inlet flows into a small amount of alcohol-based liquid fuel (generally one tenth of the total combustion flow), and the alcohol-based liquid fuel is heated by the gasification tube
  • the phase change it is transported by the gasification pipe to the two-phase atomizing nozzle, and the ignition is ignited for initial combustion.
  • another liquid fuel valve is opened, and the atomized alcohol-based liquid fuel needs to enter the two-phase fog.
  • the gasification-based alcohol-based fuel gas medium atomizes and burns the alcohol-based liquid fuel.
  • the fan blows the combustion air into the burner body to assist combustion, thereby ensuring full combustion of the alcohol-based fuel after atomization.
  • the invention has the advantages of using a two-phase atomizing burner of the same medium, and realizing a gasification phase transition of an alcohol-based liquid fuel medium by a cast aluminum soaking block, thereby ensuring that the alcohol-based fuel gas after gasification can be effectively
  • the other alcohol-based liquid fuel is fully atomized, and the atomized particles are reduced to be fully mixed with the combustion air to ensure complete combustion of the alcohol-based liquid fuel, meeting the requirements of industrial combustion, and the alcohol base can be realized in a simple and reliable manner.
  • the high-power combustion of liquid fuel can simultaneously reduce the auxiliary equipment, reduce the volume of the combustion equipment, and achieve the purpose of energy saving and environmental protection.

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

Abstract

一种醇基液体燃料双相自雾化工业型燃烧器，包括相互配合的燃烧器本体(1)、醇基液体燃料输送装置(2)及醇基液体燃料气化输送装置(3)，燃烧器本体(1)包括燃烧器外壳(11)，燃烧器外壳(11)上设有风机入口(12)，燃烧器外壳(11)内设有雾化燃烧组件(13)；醇基液体燃料气化输送装置(3)包括相变器(31)，相变器(31)内设有电加热元件(32)及气化管(33)，气化管(33)一端伸出相变器(31)外形成气化管入口(331)供醇基液体燃料输入，气化管(33)另一端伸出相变器(31)外形成气化输送管(332)将气化后的醇基燃料气体输出至燃烧器本体(1)内与雾化燃烧组件(13)配合点火，该燃烧器可使雾化后的醇基燃料充分燃烧。

Description

一种醇基液体燃料双相自雾化工业型燃烧器 技术领域
本发明涉及一种工业型燃料燃烧技术领域，具体涉及一种普遍适用于醇基液体燃料燃烧的工业型燃烧器。
背景技术
醇基燃料就是以醇类（如甲醇）物质为主体配置的燃料，在常温常压下以液体形式存在，是各国政府目前大力推广的环保洁净能源；面对石化能源的枯竭，醇基燃料是最有潜力的新型替代能源，深受各国企业组织的青睐；现有液体燃料雾化燃烧技术中，还没有适应醇基燃料特性的技术，要使醇基液体燃料燃烧效果达到工业领域的应用要求，让燃料充分雾化和减小雾化颗粒，就越容易与助燃空气充分混合，才能使液体燃料达到完全燃烧，目前的压力雾化技术、机械雾化技术、介质雾化技术用于醇基燃料效果均不理想，不能达到完全燃烧，尤其在工业大功率应用上，醇基液体燃料雾化燃烧存在燃烧不充分、燃烧强度低、火焰温度低，基本不能满足工业燃烧要求，而且设备复杂、故障多。虽然醇基燃料气化燃烧效果好，但在大功率应用时，大流量气化醇基燃料设备复杂，成本高，所以完全气化燃烧器一般只适用于300kW以下的燃烧器。
发明内容
有鉴于此，本发明的目的是提供一种醇基液体燃料双相自雾化燃烧器，拓展醇基燃料的应用范围，为醇基液体燃料在工业窑炉、锅炉的大功率应用奠定基础。
为达成上述目的，本发明采用如下技术方案：
一种醇基液体燃料双相自雾化工业型燃烧器，包括相互配合的燃烧器本体、醇基液体燃料输送装置及醇基液体燃料气化输送装置，其中，燃烧器本体包括：燃烧器外壳，燃烧器外壳上设有风机入口，燃烧器外壳内设有雾化燃烧组件；所述的醇基液体燃料气化输送装置包括：相变器，相变器内设有电加热元件及气化管，气化管一端伸出相变器外形成气化管入口供醇基液体燃料输入，气化管另一端伸出相变器外形成气化输送管将气化后的醇基燃料气体输出至燃烧器本体内雾化燃烧组件形成雾化介质。
进一步，所述的相变器31中设有的气化管33为盘管结构，气化管33与电加热元件32一体浇铸在铸铝均热块内以使其气化管受热均匀
进一步，所述的气化管与电加热元件根据功率大小的要求设置为一支或多支，并联或串联，电加热元件32为单端或双端金属管状。
进一步，所述的雾化燃烧组件包括相互配合的空气旋流板、点火针、双相雾化喷头，所述的醇基液体燃料气化输送装置将气化后的醇基燃料气体输送至双相雾化喷头，点火针点火初始燃烧 ，初始燃烧火焰建立后，另一路醇基液体燃料输送装置输送醇基液体燃料至双相雾化喷头，被气化后的醇基燃料气体进行雾化后燃烧。
进一步，所述的电加热元件端头伸出铸铝均热块并安装有电极。
进一步，所述的燃烧器外壳上设有燃烧器安装法兰。
进一步，所述的相变器上设有温度检测器。
进一步，所述的空气旋流板空气旋流板上另设有探火针。
采用上述技术方案，本发明由于采用同种介质的双相雾化燃烧器，并通过铸铝均热块稳定可靠实现醇基燃料介质的气化，保证气化后的醇基燃料气相介质高效地对醇基液体燃料进行充分雾化，减小雾化颗粒，使其与助燃空气充分混合，保证醇基液体燃料达到完全燃烧，满足工业燃烧的要求，能够适应工业大功率燃烧的需求。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本发明的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为本发明结构示意图。
具体实施方式
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚、明白，以下结合附图和实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
如图1所示，一种醇基液体燃料双相自雾化工业型燃烧器，包括相互配合的燃烧器本体1、醇基液体燃料输送装置2及醇基液体燃料气化输送装置3，其中，燃烧器本体1包括：燃烧器外壳11，燃烧器外壳11上设有风机入口12，燃烧器外壳11内设有雾化燃烧组件13；所述的醇基液体燃料气化输送装置3包括：相变器31，相变器31内设有电加热元件32及气化管33，气化管33一端伸出相变器31外形成气化管入口331供醇基液体燃料输入，气化管33另一端伸出相变器31外形成气化输送管332将气化后的醇基燃料气体输出至燃烧器本体1内与雾化燃烧组件13配合点火。
在具体实施例中，所述的相变器31中，设有气化管33，为盘管结构，气化管33与电加热元件32一体浇铸在铸铝均热块内以使其气化管受热均匀。
在具体的实践中，所述的气化管33与电加热元件32根据功率大小的要求设置为一支或多支，采取并联或串联，铸铝均热块外可依次包覆隔热保温层及保温外壳。
实施例中，所述的雾化燃烧组件13包括相互配合的空气旋流板131、点火针132、双相雾化喷头133，所述的醇基液体燃料气化输送装置3将适合燃烧的气化后的醇基液体燃料输送至双相雾化喷头133，点火针132点火初始燃烧 ，初始燃烧火焰建立后，醇基液体燃料输送装置2输送醇基液体燃料至双相雾化喷头133，被气化后的醇基燃料气体进行雾化后燃烧。
进一步的，如图1所示，所述的电加热元件32端头伸出铸铝均热块并安装有电极321。所述的燃烧器外壳11上设有燃烧器安装法兰111。所述的相变器31上设有温度检测器311以保证时时检测相变器的温度以及时由控制器调整相变温度。所述的空气旋流板空气旋流板131上另设有探火针134，所述的探火针134与点火针133的另一端头伸出燃烧器本体外并安装电极。
工作时，将铸铝均热块和电加热元件及气化管一体铸造成型，通过电极接通电加热元件使铸铝均热块受热升温至合适的气化温度（由温度检测器检测并控制），打开通往相变器的液体燃料入口控制阀，气化管入口流入少量醇基液体燃料（一般是燃烧流量总量的十分之一），醇基液体燃料通过气化管时受热气化相变后由气化输送管输送至双相雾化喷头，由点火针点燃进行初始燃烧，初始燃烧火焰建立后，打开另一路液体燃料阀，需要雾化的醇基液体燃料进入双相雾化头，气化后的醇基燃料气体介质对醇基液体燃料进行雾化后燃烧，燃烧过程中由风机鼓入助燃空气进入燃烧器本体内助燃，保证雾化后的醇基燃料充分燃烧。
本发明的发明点在于采用同种介质的双相雾化燃烧器，并通过铸铝均热块实现一路醇基液体燃料介质的气化相变，保证气化后的醇基燃料气体能有效地对另一路醇基液体燃料充分雾化，同时减小雾化颗粒，使其与助燃空气充分混合，保证醇基液体燃料达到完全燃烧，满足工业燃烧的要求，能够以简单可靠的方式实现醇基液体燃料的大功率燃烧，同时达到减少辅助设备，减小燃烧设备体积，实现节能、环保的目的。
上述说明示出并描述了本发明的优选实施例，如前所述，应当理解本发明并非局限于本文所披露的形式，不应看作是对其他实施例的排除，而可用于各种其他组合、修改和环境，并能够在本文所述发明构想范围内，通过上述教导或相关领域的技术或知识进行改动。而本领域人员所进行的改动和变化不脱离本发明的精神和范围，则都应在本发明所附权利要求的保护范围内。

Claims (6)

  1. 一种醇基液体燃料双相自雾化工业型燃烧器，其特征在于：包括相互配合的燃烧器本体1、醇基液体燃料输入装置2及醇基液体燃料相变器及醇基燃料气输送装置3，其中，燃烧器本体1包括：燃烧器外壳11，燃烧器外壳11上设有风机接口12，燃烧器外壳11内设有雾化燃烧组件13；所述的醇基液体燃料相变器及醇基燃料气输送装置3包括：相变器31，相变器31内设有电加热元件32及气化管33，气化管33一端伸出相变器31外形成气化管入口331供醇基液体燃料输入，气化管33另一端伸出相变器31外形成气化输送管332将气化后的醇基燃料气体输出至燃烧器本体1内的雾化燃烧组件13，利用该路醇基燃料气体对另一路醇基液体燃料进行雾化并点火燃烧。
  2. 如权利要求1所述的一种醇基液体燃料双相自雾化工业型燃烧器，其特征在于： 所述的相变器31中设有的气化管33为盘管结构，气化管33与电加热元件32一体浇铸在铸铝均热块内以使其气化管受热均匀。
  3. 如权利要求2所述的一种醇基液体燃料双相自雾化工业型燃烧器，其特征在于：所述的气化管33与电加热元件32根据功率大小的要求设置为一支或多支，并联或串联，电加热元件32为单端或双端金属管状。
  4. 如权利要求1、2或3所述的一种醇基液体燃料双相自雾化工业型燃烧器，其特征在于：所述的雾化燃烧组件13包括相互配合的空气旋流板131、点火针132、双相雾化喷头133，所述的醇基液体燃料气化输送装置3将醇基燃料气体输送至双相雾化喷头133，点火针132点火初始燃烧 ，初始燃烧火焰建立后，醇基液体燃料输送装置2输送醇基液体燃料至双相雾化喷头133，该路醇基液体燃料被气化后的醇基燃料气体进行雾化后燃烧。
  5. 如权利要求4所述的一种醇基液体燃料双相自雾化工业型燃烧器，其特征在于：所述的电加热元件32端头伸出铸铝均热块并安装有电极321。
  6. 如权利要求4所述的一种醇基液体燃料双相自雾化工业型燃烧器，其特征在于：所述的相变器31上设有温度检测器34。
PCT/CN2016/079349 2016-01-21 2016-04-15 一种醇基液体燃料双相自雾化工业型燃烧器 WO2017124655A1 (zh)

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