| 一起汽轮机通流改造后非正常停机原因分析 |
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| 引用本文： | 李立波,赵江涛,管向诗.一起汽轮机通流改造后非正常停机原因分析[J].汽轮机技术,2020,62(1):67-69,72. |
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| 作者姓名： | 李立波 赵江涛 管向诗 |
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| 作者单位： | 大唐东北电力试验研究院有限公司,长春,130012;大唐临清热电有限公司,临清,252600 |
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| 摘 要： | 针对某厂200MW汽轮机在通流改造后190MW负荷时振动突然增大导致异常跳机的原因进行了分析。通过相关振动数据的分析,确认振动异常变化的原因主要是动静部分发生碰摩,在碰摩的同时发生汽流激振现象,即振动突变时的半频振动幅值远大于工频振动幅值,导致2瓦振动通频值瞬间超过254μm,触发跳机动作。
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| 关 键 词： | 通流改造 停机 汽流激振 碰摩 |
Analysis on the Causes of Abnormal Shutdown of Steam Turbineafter the Flow Path Retrofit |
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| LI Li-bo,ZHAO Jiang-tao,GUAN Xiang-shi.Analysis on the Causes of Abnormal Shutdown of Steam Turbineafter the Flow Path Retrofit[J].Turbine Technology,2020,62(1):67-69,72. |
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| Authors: | LI Li-bo ZHAO Jiang-tao GUAN Xiang-shi |
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| Affiliation: | (Datang Northeast Electric Power Test Research Institute,Changchun 130012,China;Datang Linqing Power Plant,Linqing 252600,China) |
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| Abstract: | This paper analyses the cause of tabnormal shutdown after the flow path retrofit,it is the rubbing between the rotor and the casing,and it's accompanied by the fluid excited,the half-frequency vibration amplitude is much higher than the working frequency vibration amplitude,as a result,the vibration of the 2X reaches the shutdown value. |
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| Keywords: | flow path retrofit shut down fluid excited rubbing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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