| 1000 MW直接空冷机组排汽管道结构强度分析 |
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| 引用本文： | 雷平和,姜秀娟,张乃强,徐鸿,钟文英. 1000 MW直接空冷机组排汽管道结构强度分析[J]. 电力建设, 2009, 30(12): 42-45 |
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| 作者姓名： | 雷平和 姜秀娟 张乃强 徐鸿 钟文英 |
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| 作者单位： | 北京国电华北电力工程有限公司,北京市,100120;华北电力大学,北京市,102206 |
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| 摘 要： | 1000MW直接空冷机组排汽管道是大直径、薄壁、负压管道，其载荷条件和支吊架型式复杂，对其进行强度校核和稳定性分析是必要的。使用有限元软件对排汽管道系统进行建模，根据重力、温度、沉降差、风载、地震等载荷情况分为22个典型工况进行计算分析，同时根据应力标准进行强度校核。对排汽管道系统进行了模态分析和地震响应谱分析，研究了地震对排汽管道的动应力，并且采用特征值屈曲分析研究了排汽管道的屈曲临界压力。最后，根据计算分析结果对排汽管道系统进行了结构优化设计。
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| 关 键 词： | 直接空冷 排汽管道 有限元 强度分析 |
| 收稿时间： | 2009-12-01 |
| 修稿时间： | 2009-12-01 |
Structure Strength Analysis of Exhausting Pipe for 1000 MW Direct Air-cooling Condenser Unit |
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| LEI Ping-he,JIANG Xiu-juan,ZHANG Nai-qiang,XU Hong,ZHONG Wen-ying. Structure Strength Analysis of Exhausting Pipe for 1000 MW Direct Air-cooling Condenser Unit[J]. Electric Power Construction, 2009, 30(12): 42-45 |
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| Authors: | LEI Ping-he JIANG Xiu-juan ZHANG Nai-qiang XU Hong ZHONG Wen-ying |
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| Affiliation: | LEI Ping-he1,JIANG Xiu-juan2,ZHANG Nai-qiang2,XU Hong2,ZHONG Wen-ying1(1.North China Power Engineering(Beijing) Co.Ltd.,Beijing 100120,China,2.North China Electrical Power University,Beijing 102206,China) |
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| Abstract: | The exhausting pipe system of a 1 000 MW direct air-cooling condenser unit is a large dimensional negative pressure thin-walled pipe with complex loads,supports and hangers.In the paper,the strength of the pipe was calculated and verified using ANSYS under the 22 representative typical conditions,which consisted of gravity,temperature,settlement difference,wind load,earthquake,etc.Moreover,the dynamic stress was analyzed by means of modal analysis and earthquake response spectrum analysis.Besides,engievalue... |
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| Keywords: | air-cooling condenser exhausting pipe finite element strength analysis |
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