| 大功率汽轮机末级长叶片起声检验方法及应用 |
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| 引用本文： | 郭平,蔡晖,吴前驱,姚家骋.大功率汽轮机末级长叶片起声检验方法及应用[J].热力发电,2007,36(4):93-96. |
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| 作者姓名： | 郭平 蔡晖 吴前驱 姚家骋 |
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| 作者单位： | 茂名热电厂,广东,茂名,525011;西安热工研究院有限公司,陕西,西安,710032 |
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| 摘 要： | 介绍了大功率汽轮机叉型叶根叶片、枞树型叶根叶片、叶身和叶根过渡区、拉筋、围带的检测方法.提出应进一步完善和开发短前沿、小晶片、低噪声的微型探头,以提高检验结果的可靠性和准确性,为末级长叶片安全运行和监督提供有效的手段.
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| 关 键 词： | 汽轮机 叶根 叶片 断裂 超声检验 |
| 文章编号： | 1002-3364(2007)04-0093-04 |
| 修稿时间： | 2006年9月15日 |
ULTRASONIC TESTING METHOD AND ITS APPLICATION FOR LAST-STAGE LONG BLADES IN HEAVY-DUTY STEAM TURBINE |
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| GUO Ping,CAI Hui,WU Qian-qu,YAO Jia-cheng.ULTRASONIC TESTING METHOD AND ITS APPLICATION FOR LAST-STAGE LONG BLADES IN HEAVY-DUTY STEAM TURBINE[J].Thermal Power Generation,2007,36(4):93-96. |
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| Authors: | GUO Ping CAI Hui WU Qian-qu YAO Jia-cheng |
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| Abstract: | The ultrasonic testing methods for blades with fork root,blades with fir-tree root,the transition zone from blade to root,blade body,lacing wire,and shroud band in heavy-duty steam turbine have been presented.It is proposed that the micro-probes with short advanced front,small-size wafer,and low noise should be further perfected and developed,to enhance the reliability and accuracy of testing results,providing with effective means for safe operation and supervision of the last-stage long blades. |
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| Keywords: | steam turbine blade root blade fracture ultrasonic testing |
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