ULTRASONIC TESTING METHOD AND ITS APPLICATION FOR LAST-STAGE LONG BLADES IN HEAVY-DUTY STEAM TURBINE

GUO Ping1; CAI Hui2; WU Qian-qu2; YAO Jia-cheng2(1.Maomin Thermal Power Plant

doi:10.19666/j.rlfd.2007.04.027

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ULTRASONIC TESTING METHOD AND ITS APPLICATION FOR LAST-STAGE LONG BLADES IN HEAVY-DUTY STEAM TURBINE

更新时间：2025-09-28

- ULTRASONIC TESTING METHOD AND ITS APPLICATION FOR LAST-STAGE LONG BLADES IN HEAVY-DUTY STEAM TURBINE
- Thermal Power Generation Issue 4, Pages: 93-96(2007)
- 作者机构：
  
  1. 茂名热电厂
  2. 西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2007.04.027
  CLC： TK268
- Published：2007
- 稿件说明：
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GUO Ping1, CAI Hui2, WU Qian-qu2, et al. ULTRASONIC TESTING METHOD AND ITS APPLICATION FOR LAST-STAGE LONG BLADES IN HEAVY-DUTY STEAM TURBINE[J]. Thermal power generation, 2007, (4): 93-96.
DOI：

GUO Ping1, CAI Hui2, WU Qian-qu2, et al. ULTRASONIC TESTING METHOD AND ITS APPLICATION FOR LAST-STAGE LONG BLADES IN HEAVY-DUTY STEAM TURBINE[J]. Thermal power generation, 2007, (4): 93-96. DOI： 10.19666/j.rlfd.2007.04.027.

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。

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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