| 爆炸波除灰器中火焰传播及压力波形研究 |
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| 引用本文： | 樊未军,孙文超,吴承康.爆炸波除灰器中火焰传播及压力波形研究[J].燃烧科学与技术,2001,7(4):217-220. |
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| 作者姓名： | 樊未军 孙文超 吴承康 |
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| 作者单位： | 1. 北京航空航天大学动力系,北京,100083
2. 中国科学院力学研究所,北京,100080 |
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| 基金项目： | 攀登B计划资助项目(85-39-16). |
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| 摘 要： | 燃烧气脉冲发生器应用于电站锅炉除灰。其工作原理是预混可燃气体在右端部分开口，内部有障碍物的容器中快速燃烧。形成一定的压力脉冲。并产生作用于积灰表面的射流和冲击波。火焰在湍流扰动装置的作用下不断加速。容器中的压力不断上升。火焰传播愈快，压力波形愈陡。压力锋值愈高。针对这些现象。主要研究了乙块、水煤气、液化石油气和甲烷四种燃料，在不同燃料浓度、不同阻塞比时对火焰传播的影响，分析了不同燃料浓度下对压力波形的影响。
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| 关 键 词： | 爆炸 火焰传播 有障碍物容器 |
| 文章编号： | 1006-8740(2001)04-0217-04 |
| 修稿时间： | 2000年4月6日 |
A Study on Flame Propagation in a Gas-Explosion Ash R emover |
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| FAN Wei jun ,SUN Wen chao ,WU Cheng kang.A Study on Flame Propagation in a Gas-Explosion Ash R emover[J].Journal of Combustion Science and Technology,2001,7(4):217-220. |
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| Authors: | FAN Wei jun SUN Wen chao WU Cheng kang |
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| Affiliation: | FAN Wei jun 1,SUN Wen chao 2,WU Cheng kang 2 |
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| Abstract: | Gas explosion generators are used for ash removal in utility boilers.The operating principle involves pressure pulse being produced when a premixtured combstible gas burns quickly in a tube with inside obstructions and a partially open end.The propagation of flame in the combustion chamber with four kinds of fuel (acetylene,water gas,liquefied petroleum gas and methane) was measured in the experimental apparatus.Flame speeds and pressure development were compared at various fuel/air equivalence ratios.Effects of blockage ratios on flame velocity were investigated.The experimental results are useful in providing some guidance for industrial application. |
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| Keywords: | explosion flame propagation chamber with obstructions |
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