汽轮机高中压转子材质因素引起的弯曲故障

doi:10.11930/j.issn.1004-9649.2014.8.94.3

中国电力 ›› 2014, Vol. 47 ›› Issue (8): 94-97.DOI: 10.11930/j.issn.1004-9649.2014.8.94.3

汽轮机高中压转子材质因素引起的弯曲故障

李恒海¹, 安正锋², 王宝玉¹, 谷志德³

1. 华电电力科学研究院,浙江杭州 310030;
2. 大唐景泰发电有限公司,甘肃白银 730408;
3. 甘肃电力科学研究院,甘肃兰州 730050

收稿日期:2014-04-10 出版日期:2014-08-18 发布日期:2015-12-10
作者简介:李恒海（1973—）,男,甘肃民勤人,高级工程师,从事汽轮机及其附属设备故障诊断、节能优化研究。E-mail: lihh1120@163.com

Bending Fault Caused by Steam Turbine HP-IP Rotor Materials

LI Heng-hai¹, AN Zheng-feng², WANG Bao-yu¹, GU Zhi-de³

1. Huadian Electric Power Research Institute, Hangzhou 310030, China;
2. Datang Jingtai Power Plant, Baiyin 730408, China;
3. Gansu Electric Power Research Institute, Lanzhou 730050, China

Received:2014-04-10 Online:2014-08-18 Published:2015-12-10

摘要/Abstract

摘要： 针对近几年频发的600 MW等级汽轮发电机组高中压转子在运行中逐渐弯曲的故障,结合2台超临界600 MW等级机组高中压转子的同类弯曲实例,通过弯曲特征分析了引起弯曲的原因和机理,得出转子材质缺陷是引起弯曲的关键因素,转子材料组织不均匀使转子受到高温蒸汽加热后产生弹性弯曲,转子残余内应力过大和分布轴不对称使转子受到高温蒸汽加热后发生应力松弛,产生永久性弯曲。总结了该类转子弯曲给机组安全、经济运行带来的一系列问题,并探讨了该类弯曲故障的处理方法及预防对策。

关键词: 600 MW汽轮机, 高中压转子, 材质缺陷, 弯曲故障

Abstract: Aiming at the HP-IP rotor bending faults which frequently happened in the operation of 600-MW turbine generating units in recent years, the reason and mechanism of the rotor bending are analyzed through the bending characteristics of the similar HP-IP rotor bending examples of two 600-MW supercritical units. It is concluded that the defect of HP-IP rotor materials is the key factor causing the bending. The uneven material makes the elastic bending happen in the high temperature steam and the stress relaxation caused by the excessive and asymmetrically axis distributed residual stress in high temperature steam heating leads to permanent bending. The secure and economic operation problems caused by rotor bending are summarized. The processing methods and prevention strategies are also included.

Key words: 600-MW steam turbine, HP-IP rotor, material defect, bending fault

中图分类号:

TK263.6+1

李恒海, 安正锋, 王宝玉, 谷志德. 汽轮机高中压转子材质因素引起的弯曲故障[J]. 中国电力, 2014, 47(8): 94-97.

LI Heng-hai, AN Zheng-feng, WANG Bao-yu, GU Zhi-de. Bending Fault Caused by Steam Turbine HP-IP Rotor Materials[J]. Electric Power, 2014, 47(8): 94-97.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.2014.8.94.3

https://www.electricpower.com.cn/CN/Y2014/V47/I8/94

参考文献

[1] 牟法海,侯锐,王文营,等. 超临界空冷660 MW汽轮机组不稳定振动原因分析与处理[J]. 汽轮机技术,2012,54（2）：71-74.
MU Fa-hai, HOU Rui, WANG Wen-ying, et al . Cause analysis and treatment for unstable of supercritical air-cooled 660 MW turbine [J]. Turbine Technology, 2012, 54(2): 71-74.
[2] 张学延,杨寿敏,张卫军,等. 汽轮发电机组转子材质缺陷引起的振动问题[J]. 中国电力,2010,43（5）：38-42.
ZHANG Xue-yan, YANG Shou-min, ZHANG Wei-jun, et al . Vibration problems caused by material defects of turbine- generator unit rotor [J]. Electric Power, 2010, 43(5): 38-42.
[3] 施维新.柔性转子轴系平衡技术的发展[J]. 中国电力,2011,44（2）：31-36.
SHI Wei-xin. Development of flexible rotor shaft balancing technology [J]. Electric Power, 2011, 44(2): 31-36.
[4] 田国成,陈会平,柳红涛. 超临界汽轮机高中压转子弯曲及异常振动的分析与处理[J]. 动力工程,2009,29（10）：909-913.
TIAN Guo-cheng, CHEN Hui-ping, LIU Hong-tao. The analysis and treatment of HP/IP rotor’s bending and abnormal vibration of the supercritical steam turbine[J]. Journal of Power Engineering, 2009, 29(10): 909-913.
[5] 赵海廷,赵彦铭,司派友. 高压转子的“梯形”弯曲原因分析及处理[J]. 热力发电,2009,38（4）：50-53.
ZHAO Hai-ting, ZHAO Yan-ming, SI Pai-you. Ladder-shaped bending analysis and elimination for a rotor under high pressure[J]. Thermal Power Generation, 2009, 38(4): 50-53.
[6] 施维新. 振动故障诊断原理及发展[J]. 中国电力,2008,41（3）：48-52.
SHI Wei-xin. Principles and development of vibration fault diagnosis [J]. Electric Power, 2008, 41(3): 48-52.
[7] 陆颂元.大型机组动静碰摩的振动特征及现场应急处理方法[J]. 中国电力,2003,36（1）：6-11.
LU Song-yuan. Vibration characteristics and on-site emergency trouble-shooting method of rubbing between moving and stationary parts of steam turbine-generator units[J]. Electric Power, 2003, 36(1): 6-11.
[8] 施维新. 汽轮发电机组振动与事故[M]. 北京：中国电力出版社,2008.
[9] 宋琳生. 电厂金属材料[M]. 北京：中国电力出版社,2006.
[10] 庄同信,张小伍,柳四新,等. 残余应力测试技术在汽轮机生产和质量控制中的应用[J]. 理化检验：物理分册,2003（10）：515-518.
ZHUANG Tong-xin, ZHANG Xiao-wu, LIU Si-xin, et al . Application of residual stress test technique in turbine producing and quality control [J]. PTCA Part A: Physical Testing, 2003(10):515-518.
[11] 汪洪滨,刘剑飞,刘大礼,等. 汽轮机主轴和转子锻件热稳定性分析方法研究[J]. 汽轮机技术,2009,51（4）：304-306.
WANG Hong-bin, LIU Jian-fei, LIU Da-li, et al . Hot-stability analysis method for rotor forging and principal spindle of steam turbine [J]. Turbine Technology, 2009, 51(4): 304-306.

汽轮机高中压转子材质因素引起的弯曲故障

Bending Fault Caused by Steam Turbine HP-IP Rotor Materials

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

编辑推荐

Metrics

[1]	张学延, 李书伟, 刘安. 某300 MW机组高中压转子振动故障的准确诊断[J]. 中国电力, 2017, 50(5): 13-19.
[2]	张法科. 国产660 MW超临界机组高中压转子弯曲处理[J]. 中国电力, 2014, 47(1): 100-103.

模态框（Modal）标题

汽轮机高中压转子材质因素引起的弯曲故障

Bending Fault Caused by Steam Turbine HP-IP Rotor Materials

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

编辑推荐

Metrics