| 不同摆角下四墙切圆燃烧器的数值模拟 |
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| 引用本文： | 李永华,司金茹.不同摆角下四墙切圆燃烧器的数值模拟[J].中国电机工程学报,2011,31(11). |
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| 作者姓名： | 李永华 司金茹 |
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| 作者单位： | 电站设备状态监测与控制教育部重点实验室(华北电力大学),河北省,保定市,071003 |
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| 摘 要： | 四角切圆燃烧方式在电厂中的应用很广泛,但是这种燃烧方式也有其自身的缺点:如燃烧器区域温度水平低,着火条件差,炉膛出口残余旋转大,水平烟道温度分布不均匀,容易产生热偏差和水冷壁的爆管等.因此近几年来四墙切圆燃烧方式具有很好的工程应用前景.以某电厂600MW超超临界四墙切圆直流摆动式燃烧器为工程原型建立模型,通过FLUENT数值计算软件,来用数值模拟的方法研究直流摆动式燃烧器在上下不同摆角下的燃烧特性与流动特性,根据数值模拟的结果分析其燃烧特性和流动特性,确定了四墙切圆燃烧方式的合理工况,为四墙切圆燃烧锅炉的运行提供了参考.
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| 关 键 词： | 四墙切圆 不同摆角 燃烧特性 流动特性 数值模拟 |
Numerical Simulation of Wall Arrangement Burners at Different Swing Levels |
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| LI Yonghua
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SI Jinru.Numerical Simulation of Wall Arrangement Burners at Different Swing Levels[J].Proceedings of the CSEE,2011,31(11). |
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| Authors: | LI Yonghua SI Jinru |
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| Affiliation: | LI Yonghua,SI Jinru(Key Laboratory of Condition Monitoring and Control for Power Plant Equipment(North China Electric Power University),Ministry of Education,Baoding 071003,Hebei Province,China) |
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| Abstract: | Tangentially burner application is used extensively in power plant boilers,but it also has its own disadvantages: such as low temperature in the burner-region,poor firing conditions,large rotary residual at furnace export,the uneven temperature distribution level at the stack,prone to thermal deviation and explosion of the water tubes.So in recent years wall arrangement boiler has a good engineering prospect.Prototype was adopted of wall tangentially DC Swing burners of an ultra-supercritical coal-fired 600... |
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| Keywords: | wall arrangement different swing levels combustion characteristics flow characteristics numerical simulation |
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