| 燃煤锅炉气体再燃混合特性的三维数值模拟 |
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| 引用本文： | 史俊瑞,徐有宁,王阳,李振中,韩春福,王智.燃煤锅炉气体再燃混合特性的三维数值模拟[J].锅炉技术,2011,42(1):39-42,47. |
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| 作者姓名： | 史俊瑞 徐有宁 王阳 李振中 韩春福 王智 |
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| 作者单位： | 沈阳工程学院循环流化床燃烧技术重点试验室;国家电站燃烧工程技术研究中心; |
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| 基金项目： | 国家高技术研究发展计划子课题(2007AA05Z336-1) |
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| 摘 要： | 研究全尺寸锅炉内气体再燃的混合特性.通过三维模型,考察煤粉切圆燃烧锅炉内的混合特性.结果表明,再燃燃料的喷入速度,喷口的宽高比对再燃燃料的混合过程有显著的影响,而再燃区的高度对混合过程的影响很小.计算表明,当再燃燃料喷入量保持不变时,采用较大的再燃燃料射入速度、等边的喷口和较大的再燃烧区高度有利于再燃气与烟气的混合.
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| 关 键 词： | 气体再燃 燃煤锅炉 模拟 混合过程 |
Three Dimensional Modeling of Gas Reburning Mixing Process of Coal-fired Boiler |
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| SHI Jun-rui,XU You-ning,WANG-Yang,LI Zhen-zhong,HAN Chun-fu,WANG Zhi.Three Dimensional Modeling of Gas Reburning Mixing Process of Coal-fired Boiler[J].Boiler Technology,2011,42(1):39-42,47. |
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| Authors: | SHI Jun-rui XU You-ning WANG-Yang LI Zhen-zhong HAN Chun-fu WANG Zhi |
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| Affiliation: | SHI Jun-rui1,2,XU You-ning1,WANG-Yang2,LI Zhen-zhong2,HAN Chun-fu1,WANG Zhi1.Shenyang Key Laboratory on Circulating Fluidized Bed Combustion Technology,Shenyang Instituteof Engineering,Shenyang 110136,China,2.The National Power Plant Combustion EngineeringTechnology Research Center,Shenyang 110034 |
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| Abstract: | This paper investigations the mixing characteristics of gas reburning on the full-scale boiler.Mixing process originated by injecting reburning gas in the tangentially coal-fired boiler is examined by a three dimensional numerical model.Attention is focused on the influences of the reburning gas velocity,the ratio between the nozzle width and height,as well as reburning zone heights on the mixing process.It is remarkable that the reburning gas velocity and the ratio between the nozzle width and height has s... |
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| Keywords: | gas reburning coal-fired boiler modeling mixing process |
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