| 汽轮发电机组轴振动测量的分析及振动保护改进建议 |
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| 引用本文： | 倪定,顾水忠,金玄玄,陈沈伟.汽轮发电机组轴振动测量的分析及振动保护改进建议[J].华东电力,2008,36(8). |
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| 作者姓名： | 倪定 顾水忠 金玄玄 陈沈伟 |
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| 作者单位： | 嘉兴发电有限责任公司,浙江,嘉兴,314201 |
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| 摘 要： | 分析了目前国内汽轮发电机组振动测量和保护存在的问题,介绍了转轴的振动力学和运行特征,以及汽轮发电机组各轴承振动特点及其相互影响的客观规律,探讨利用现有测量系统实现GB/T11348.1-1999标准推导的3种振动峰-峰值的可能性及其利弊,提出了将X和Y方向2个信号的均方根值用于振动保护的建议.
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| 关 键 词： | 汽轮机 轴振动 测量 保护 误差分析 |
Measurement of shaft vibration for turbo-generator units and discussion on vibration protection |
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| NI Ding,GU Shui-zhong,JIN Xuan-xuan,CHEN Shen-wei.Measurement of shaft vibration for turbo-generator units and discussion on vibration protection[J].East China Electric Power,2008,36(8). |
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| Authors: | NI Ding GU Shui-zhong JIN Xuan-xuan CHEN Shen-wei |
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| Abstract: | Problems of vibration measurement and protection for turbo-generator units in China are analyzed,and vibration mechanics and operational characteristics of the shaft are presented,as well as vibration features of various bearings of the turbo-generator unit and the rules of their interaction.The feasibility of using existing measurement system to obtain three kinds of vibration peak-peak values introduced in GB/T11238.1-1999 standard is discussed,as well as the merits and demerits.It is proposed that the root-mean-square value of the two signals of X and Y directions be applied to vibration protection. |
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| Keywords: | steam turbine shaft vibration measurement protection error analysis |
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