Analysis and Treatment of Bearing 1 Vibration Fault in a 600-MW Steam Turbine

doi:10.11930/j.issn.1004-9649.2016.11.135.05

Abstract

Abstract: Due to the excessive shaft vibration on Bearing 1 of a 600-MW supercritical unit when it is switched from single valve to sequential valve operation mode at around 460 MW load level, the sequential valve mode cannot be normally committed, which has great impact on the economic performance of the unit. By virtue of field data collection and analysis, the cause of the abnormal vibration is analyzed precisely in the aspect of vibration mechanism. Through shafting level adjustment, the abnormal vibration of Bearing 1 is successfully eliminated. This case is useful for analyzing similar vibration fault in supercritical power plants.

Key words: thermal power generation unit, steam turbine generator, supercritical parameter, single valve operation, sequence valve operation, vibration treatment, rotary part

CLC Number:

TM621

LI Yuchun, CHEN Tao, YANG Weimin, QI Minfang. Analysis and Treatment of Bearing 1 Vibration Fault in a 600-MW Steam Turbine[J]. Electric Power, 2016, 49(11): 135-139.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2016.11.135.05

https://www.electricpower.com.cn/EN/Y2016/V49/I11/135

References

[1] 李卫军,张宝,童小忠. 汽轮机进汽方式切换时轴振与瓦温异常分析[J]. 汽轮机技术,2006,48（12）：462-464.
LI Weijun, ZHANG Bao, TONG Xiaozhong. The analysis of abnormal of shaft vibration and bearing temperature turbine inlets mode’s shifting [J]. Turbine Technology, 2006, 48(12): 462-464.
[2] 王晓峰,高春升. 600 MW汽轮机的阀门管理与调节级特性[J].汽轮机技术,2003,45（2）：122-123.
WANG Xiaofeng, GAO Chunsheng. 600 MW turbine valve management and governing stage performance[J]. Turbine Technology, 2003, 45(2): 122-123.
[3] 欧绍明. 汽轮机阀门试验时轴承温度及振动值偏高分析与对策[J]. 湖南电力,2004（5）：47-49.
OU Shaoming. Analysis and countermeasures of the high deviations of bearing temperature and vibration value in the test of steam-turbine valve [J]. Hunan Electric Power, 2004(5): 47-49.
[4] 唐贵基,张文德,卢盛阳,等. 600 MW汽轮机部分进汽条件下配汽策略优化[J]. 中国电力,2015,48（2）：14-20.
TANG Guiji, ZHANG Wende, LU Shengyang, et al . Steam distribution strategy optimization for 600-MW steam turbine under partial admission conditions[J]. Electric Power, 2015, 48(2): 14-20.
[5] 赵永林,秦占峰,史新刚. 600 MW汽轮机单阀切顺序阀运行解决方案的探索[J]. 热力发电,2007,36（1）：71-75.
ZHAO Yongli, QIN Zhanfeng, SHI Xingang. Operation of single valve to sequence valve control for 600 MW turbine[J]. Thermal Turbine, 2007, 36(1): 71-75.
[6] 张学延,王延博,张卫军. 超临界压力汽轮机蒸汽激振问题分析及对策[J]. 中国电力,2002,35（12）：1-6.
ZHANG Xueyan, WANG Yanbo, ZHANG Weijun. Analysis and countermeasures of steam-excited vibration of supercritical pressure steam turbine [J]. Electric Power, 2002, 35(12): 1-6.
[7] 阚伟民,邓少翔,田丰,等. 600 MW汽轮机组调节阀控制方式切换中振动问题分析及配汽优化[J]. 热力发电,2009,38（12）： 68-72.
KAN Weimin, DENG Shaoxiang, TIAN Feng, et al . Analysis of vibration problem during governor valve switching in the control mode of one 600 MW steam turbine unite and optimization of it’s steam distribution [J]. Thermal Turbine, 2009, 38(12): 68-72.

[1]	Muchi ZHAO, Haijiao WANG, Chun LIU, Guoqing HE, Yanxia SUN, Panpan WANG. Broadband Impedance Modeling and Sub/Super-synchronous Oscillation Analysis of Steam Turbine Generator [J]. Electric Power, 2024, 57(7): 238-246.
[2]	YANG Wenhu. Introduction and Analysis of the Technical Specifications of 1 350 MW USC Steam Turbine [J]. Electric Power, 2020, 53(1): 162-168,176.
[3]	WANG Zhanzhou, CAO Lihua, WEI Honggang, YANG Ming. Study on the Influence of the Intervention of Wind Power on Steam Turbine Rotor Life [J]. Electric Power, 2018, 51(4): 101-107.
[4]	DU Zhen, YANG Liqiang, WEI Hongge, YE Weiping, ZHU Yue. Analysis on the Impacts of Low-Low Temperature Eletrostatic Precipitator on Dust Characteristics and SO₃ Removal Effect [J]. Electric Power, 2017, 50(9): 125-128.
[5]	LI Quan, YIN Feng, ZHANG Zhengwei, HOU Guolian, LUO Zhihao. Research on and Application of Multiplier Predictive Function Control Over Main Steam Temperature [J]. Electric Power, 2017, 50(8): 37-40.
[6]	CHEN Bo, ZHOU Shenxue, DING Ning, SU Ye, ZHU Bingquan, YIN Feng, DING Junhong. Research and Test of the Primary Frequency Control in Ultra-Supercritical Units Under Feed Water Bypass Control of HP Heater [J]. Electric Power, 2017, 50(8): 32-36.
[7]	FEI Zhangsheng, LU Honglin, HE Yongjun, GUI Yishu. Primary Frequency Regulation of Large Frequency-Difference in Supercritical/Ultra-Supercritical Units After UHVDC Transmission System Block Fault [J]. Electric Power, 2017, 50(8): 27-31.
[8]	GONG Guangzheng. Research on and Application of the Control Strategy for Flexibility Improvement of Supercritical Fossil-Fired Power Units [J]. Electric Power, 2017, 50(8): 22-26.
[9]	HUA Guojun. Analysis and Pre-control Measures of Typical Faults of the Thermal Control Systems in the Power Plants Nationwide in 2016 [J]. Electric Power, 2017, 50(8): 16-21.
[10]	MA Rui, HOU Qian, JIN Fei, YANG Chunlai, PENG Gang. Research on Pilot Scale Generalization Modeling Method for Power Supply Side Experiment of Power Grid Based on the Online Thermal Performance Data [J]. Electric Power, 2017, 50(8): 41-47.
[11]	YANG Minghua. The Research and Application of Thermal Control Simulation Test Device for Optimization of Advanced Thermal Control Scheme [J]. Electric Power, 2017, 50(8): 48-52.
[12]	WANG Qi, BAI Jianyun, WANG Xinfeng, WANG Li. Multi-Objective Optimization on CFB Boiler Desulfurization and Denitrification Systems [J]. Electric Power, 2017, 50(7): 109-114.
[13]	ZHANG Xueyan, LI Shuwei, LIU An. Accurate Diagnosis of Abnormal Vibration of High-Medium Pressure Rotor in a 300-MW Unit [J]. Electric Power, 2017, 50(5): 13-19.
[14]	LUO Jia, CHEN Shihe, ZHANG Xi, WU Le. Research on Soft Measurement Technology of Typical Thermal Parameters of Utility Boilers [J]. Electric Power, 2016, 49(6): 48-52.
[15]	LI Xiaofeng, WANG Yagang. Robustness Enhancement of Supercritical Unit Power Control with IMC-PID Controller [J]. Electric Power, 2016, 49(6): 20-24.