| 双炉膛直流炉蒸发系统的分布参数建模 |
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| 引用本文： | 罗自学,闫晓沛,郑树,周怀春.双炉膛直流炉蒸发系统的分布参数建模[J].华中科技大学学报(自然科学版),2011(3):120-123. |
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| 作者姓名： | 罗自学 闫晓沛 郑树 周怀春 |
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| 作者单位： | 华中科技大学煤燃烧国家重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(51076049,51025622,50721005) |
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| 摘 要： | 通过建立双炉膛内水冷壁二维表面非均匀蒸发系统模型,利用炉膛三维温度场可视化检测系统获得的炉内实时烟气温度分布,研究双炉膛直流锅炉蒸发受热面的分布参数变化规律.提出用假想受热面处理双面水冷壁的方法,仿真研究证明了模型的正确性.双炉膛直流锅炉现场实测参数的模型检验表明:在90%负荷下前墙靠双面水冷壁附近角的壁温高于边缘处的壁温,计算的质量流量与设计值最大误差为8.56%,理论推算与电厂实际运行结果较一致.
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| 关 键 词： | 电站直流锅炉 蒸发系统 分布参数 双炉膛 建模 |
Modeling distributed parameters in evaporation system with twin-furnace once-through boiler |
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| Luo Zixue Yan Xiaopei Zheng Shu Zhou Huaichun.Modeling distributed parameters in evaporation system with twin-furnace once-through boiler[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2011(3):120-123. |
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| Authors: | Luo Zixue Yan Xiaopei Zheng Shu Zhou Huaichun |
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| Institution: | Luo Zixue Yan Xiaopei Zheng Shu Zhou Huaichun(State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | Model of non-uniformly distribution in two-dimensional surfaces of water-wall tubes was established by the real-time 3D temperature distribution,and the variation of evaporation system with distributed parameters in a twin-furnace once-through boiler was determined by using the visualization of monitoring combustion.The imaginary wall surface was put forward to simplify the twin-furnace problem,and the correctness of the method was proved by the simulation.The results show that the metal temperature close t... |
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| Keywords: | utility once-through boiler evaporation system distributed parameter twin-furnace modeling |
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