| 空内冷汽轮发电机的转子多路通风均匀性 |
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| 引用本文： | 路义萍,郑国丽,李俊亭,韩家德.空内冷汽轮发电机的转子多路通风均匀性[J].中国电机工程学报,2010(3). |
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| 作者姓名： | 路义萍 郑国丽 李俊亭 韩家德 |
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| 作者单位： | 哈尔滨理工大学机械动力工程学院;哈尔滨电机厂有限责任公司; |
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| 基金项目： | 国家自然科学基金项目(50976027); 黑龙江省自然科学基金项目(E200807)~~ |
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| 摘 要： | 建立110MW空内冷汽轮发电机转子冷却通风道一个槽(包括端部、轴径向及副槽)的半轴向段三维物理模型,并基于有限体积法对该物理模型进行旋转湍流流场数值模拟,分析了端部、轴向段和副槽通风段的空气速度、流量分布特点。采用绕组轴向单位长度供风量等概念评价冷却风量分布均匀性,分析了轴向及副槽通风段长度、副槽中心截面高度、出风口直径变化对转子各通风道风量分布的影响。结论可为空内冷汽轮发电机转子风道优化设计提供理论参考。
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| 关 键 词： | 汽轮发电机 转子 通风 空冷 数值模拟 |
Uniformity of Multi-path Ventilation in Rotor of Air Inner-cooled Turbo Generator |
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| LU Yi-ping,ZHENG Guo-li,LI Jun-ting,HAN Jia-de.Uniformity of Multi-path Ventilation in Rotor of Air Inner-cooled Turbo Generator[J].Proceedings of the CSEE,2010(3). |
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| Authors: | LU Yi-ping ZHENG Guo-li LI Jun-ting HAN Jia-de |
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| Affiliation: | LU Yi-ping1,ZHENG Guo-li1,LI Jun-ting2,HAN Jia-de1 (1. School of Mechanical & Power Engineering,Harbin University of Science , Technology,Harbin 150080,Heilongjiang Province,China,2. Harbin Electric Machine Company Limited,Harbin 150040,China) |
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| Abstract: | Physical model of three-dimensional half axis rotor of 110 MW air inner-cooled turbo-generator was established, which included the rotor end, axial ventilation ducts and sub slot ventilation ducts. The rotating turbulence flow field was simulated numerically based on the finite volume method. The air velocity and flow rate distribution characteristics of the rotor end, axial ventilation ducts and sub slot ventilation ducts were analyzed. The air flow rate per unit length of windings was presented to evaluat... |
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| Keywords: | turbo-generator rotor ventilation air cooling numerical simulation |
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