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力学与实践 ›› 2004, Vol. 26 ›› Issue (2): 0-0.doi: 10.6052/1000-0879-2002-426

• 应用研究 •    

基于应力测试的汽轮机高导管焊区失效研究

罗斌 郭乙木 刘健   

  1. 浙江工业大学机电工程系 310024 杭州市浙江工业大学机电工程系 310024 浙江工业大学机电工程系 310024
  • 收稿日期:2002-12-13 修回日期:1900-01-01 出版日期:2004-04-10 发布日期:2004-04-10

FAILURE ANALYSIS OF HIGH-PRESSURE STEAM PIPES BASED ON STRESS ANALYSIS

  • Received:2002-12-13 Revised:1900-01-01 Online:2004-04-10 Published:2004-04-10

摘要: 对125MW汽轮机高压导汽管进口焊区进行了应力测试,从应力角度分析了高导管早期 失效的原因,能够为采取防止失效措施、合理设计高导管焊区结构提供参考.

关键词: 高导管, 应力, 测试, 失效, 应变

Abstract: In order to take effective measures to avoid the earlier cracks in welded area of high-pressure steam pipes of the 125MW turbine, the stress analysis under high temperature was put into practice. The paper analyzes the causes of cracks based on the experimental data, which is helpful for finding out protective measures in the design.

Key words: high-pressure steam pipe, stress, test, destruction, strain