| 直流锅炉水冷壁热敏感性的研究 |
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| 引用本文： | 王为术,毕勤成,朱晓静,马良栋,刘瑞兰,董英斌.直流锅炉水冷壁热敏感性的研究[J].动力工程,2009,29(6). |
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| 作者姓名： | 王为术 毕勤成 朱晓静 马良栋 刘瑞兰 董英斌 |
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| 作者单位： | 王为术,刘瑞兰,董英斌,WANG Wei-shu,LIU Rui-lan,DONG Ying-bin(华北水利水电学院电力学院,郑州,450011);毕勤成,朱晓静,BI Qin-cheng,ZHU Xiao-jing(西安交通大学动力工程多相流国家重点实验室,西安,710049);马良栋,MA Liang-dong(大连理工大学,土木水利学院,大连,116024)
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| 基金项目： | 郑州市科技攻关资助项目，华北水利水电学院高层次人才启动资助项目 |
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| 摘 要： | 针对锅炉扰动工况下水冷壁的安全问题,根据汽液两相流阻力分相流模型,建立了直流锅炉水冷壁热敏感系数定量计算表达式,基于C++Builder分析程序研制了水冷壁热敏感特性分析软件.对1 100 t/h直流锅炉水冷壁的热敏感系数进行了定量计算,并分析了热负荷、压力、质量流速等因素对流量敏感系数、压降敏感系数和出口焓敏感系数的影响规律.结果表明:在近临界压力区,锅炉热敏感性受外界扰动的影响最为剧烈.研究结果对防止水冷壁爆管,确保直流锅炉安全运行具有重要意义.
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| 关 键 词： | 直流锅炉 垂直水冷壁 热敏感性 扰动工况 |
Study on Thermal Sensitivity of Waterwall in Once-through Boiler |
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| WANG Wei-shu,BI Qin-cheng,ZHU Xiao-jing,MA Liang-dong,LIU Rui-lan,DONG Ying-bin.Study on Thermal Sensitivity of Waterwall in Once-through Boiler[J].Power Engineering,2009,29(6). |
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| Authors: | WANG Wei-shu BI Qin-cheng ZHU Xiao-jing MA Liang-dong LIU Rui-lan DONG Ying-bin |
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| Affiliation: | 1.School of Electric Power;North China University of Water Conservancy and Electric Power;Zhengzhou 450011;China;2.National Key Laboratory of Multiphase Flow in Power Engineering;Xi'an Jiaotong University;Xi'an 710049;3.School of Civil and Hydraulic Engineering;Dalian University of Technology;Dalian 116024;China |
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| Abstract: | In the light of safety problem of boiler waterwall under disturbed conditions,quantitative calculation expression for thermal sensitivity coefficient of waterwall in once-through boiler was set up on the basis of separated flow model of liquid-gas two phase flow.A set of software for thermal sensitivity analysis of waterwall was developed by use of C++ Builder analyse program.The thermal sensitivity coefficient of waterwall in an 1 100 t/h once-through boiler was quantitatively calculated.The influence law ... |
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| Keywords: | once-through boiler vertical waterwall thermal sensitivity disturbed condition |
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