| 非设计配风条件W火焰锅炉NO_x排放特性分析 |
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| 引用本文： | 孙小柱,高正阳,宋玮,陈丹峰. 非设计配风条件W火焰锅炉NO_x排放特性分析[J]. 热能动力工程, 2010, 25(1) |
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| 作者姓名： | 孙小柱 高正阳 宋玮 陈丹峰 |
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| 作者单位： | 华北电力大学,能源动力与机械工程学院,河北,保定,071003 |
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| 摘 要： | 配风方式是影响煤粉燃烧过程NOx排放的关键因素。对非设计配风条件下W火焰锅炉NOx排放特性进行深入研究具有重要意义。应用CFX-TASCFLOW软件对一台现役300MW机组W火焰锅炉进行了数值模拟,利用现场运行数据验证了基础工况数值模拟的准确性。进行了18种非设计配风工况炉内燃烧数值模拟,计算与分析结果表明:前后拱上一次风量比在大于5∶6与小于6∶5范围内变化时,前后拱一次风量偏差对NO生成有显著影响,一次风速增加使得NOx的排放浓度降低。
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| 关 键 词： | W火焰锅炉 配风 数值模拟 NO_x排放 |
An Analysis of the NO_x Emission Characteristics of a Boiler with a W-shaped Flame Under the Condition of an Off-design Air Distribution |
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| SUN Xiao-zhu,GAO Zheng-yang,SONG Wei,et al. An Analysis of the NO_x Emission Characteristics of a Boiler with a W-shaped Flame Under the Condition of an Off-design Air Distribution[J]. Journal of Engineering for Thermal Energy and Power, 2010, 25(1) |
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| Authors: | SUN Xiao-zhu GAO Zheng-yang SONG Wei et al |
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| Affiliation: | SUN Xiao-zhu,GAO Zheng-yang,SONG Wei,et al(College of Energy Source , Power Engineering,North China University of Electric Power,Baoding,China,Post Code: 071003) |
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| Abstract: | The air distribution pattern is a key factor influencing the NOx emissions in a pulverized coal combustion process. It is of major significance to study in depth the NOx emission characteristics of a boiler with a W-shaped flame under the condition of an off-design air distribution. By using software CFX-TASCFLOW,a numerical simulation was conducted of a 300 MW plant with the above boiler in active service. The on-site operating data were used to verify the accuracy of the numerical simulation results at th... |
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| Keywords: | flame boiler air distribution numerical simulation NO_x emission |
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