| 某1000MW机组动静碰摩故障诊断与特征分析 |
| |
| 引用本文： | 李江峰,刘石,冯永新.某1000MW机组动静碰摩故障诊断与特征分析[J].广东电力,2010,23(6):65-68. |
| |
| 作者姓名： | 李江峰 刘石 冯永新 |
| |
| 作者单位： | 1. 台山核电合营有限公司,广东,台山,529200
2. 广东电网公司电力科学研究院,广东,广州510600 |
| |
| 摘 要： | 对某1 000MW超超临界机组在调试期间首次启动过程中出现的振动爬升问题进行分析,根据现场采集的Bode图、测点趋势图和间隙电压等,对振动幅值和相位的变化过程进行跟踪,诊断出转子在临界转速下发生了动静碰摩故障,并通过对动静碰摩故障机理的分析进一步验证了判断的正确性,提出扩大动静部件间隙是现场处理动静碰摩故障的关键。
|
| 关 键 词： | 汽轮发电机组 振动 动静碰摩 故障诊断 相位 |
Fault Diagnosis and Characteristic Analysis of Rubbing on a 1 000 MW Unit |
| |
| LI Jiang-feng,LIU-shi,FENG Yong-xin.Fault Diagnosis and Characteristic Analysis of Rubbing on a 1 000 MW Unit[J].Guangdong Electric Power,2010,23(6):65-68. |
| |
| Authors: | LI Jiang-feng LIU-shi FENG Yong-xin |
| |
| Affiliation: | 1. Taishan Nuclear Power Joint Venture Co., Ltd., Taishan, Guangdong 529200, China; 2. Electric Power Research Inst. of Guangdong Power Grid Corp., Guangzhou, Guangdong 510600, China) |
| |
| Abstract: | The vibration fault in the initial start during commission of a 1 000 MW ultra-supercritical unit is analyzed. According to Bode, measuring-point trend, gap voltage plot figures and so on acquired on site, the change process of vibration amplitude and phase is tracked. It is concluded that the rotor suffered rubbing at critical speed. The judgement is further verified through analyzing the rubbing mechanism. It is indicated that widening the gap between dynamic and static components is a key way to solve rubbing fault on site. |
| |
| Keywords: | turbo-generating unit vibration rubbing fault diagnosis phase |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
