在双金属管道中检查面薄化和接口解接,使用脉冲流测试
Weifan Chen1,2, Xiaofeng Zhou2, Baixi Liu1
1School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China.
Materials (Basel, Switzerland)
|June 19, 2024
概括
脉冲旋流测试 (PECT) 有效检测双金属管 (BLP) 的内部缺陷. 这种非破坏性测试方法通过分析差异信号来识别面壁的薄化和解,显示出海上石油和天然气应用的前景.
科学领域:
- 材料科学与工程 材料科学与工程
- 非破坏性测试是指非破坏性测试.
- 电磁主义 电磁主义
背景情况:
- 双金属管 (BLP) 在海上石油和天然气中至关重要.
- 在BLP中识别内部缺陷,如线稀释和解,是具有挑战性的.
- 对于可靠的检查,需要进行非破坏性测试 (NDT).
研究的目的:
- 提出和验证脉冲旋流测试 (PECT) 方法,用于检测BLP的内部缺陷.
- 为了分析PECT信号对壁变薄和接口脱节的响应.
- 为BLP完整性评估建立可靠的NDT方法.
主要方法:
- 分析模拟PECT探头和分层BLP之间的电磁场相互作用.
- 对于缺陷场景 (墙壁稀薄,脱节) 的PECT信号的计算.
- 通过减去基线信号来开发差异化的PECT信号.
- 使用模拟的双壁BLP标本进行实验验证.
主要成果:
- 不同的PECT信号有效地突出了线条的弱响应.
- 不同信号的峰值电压显示出线性和可区分的变化与缺陷.
- 实验结果与分析预测一致.
- 峰值信号值与剩余的层厚度和解间隙大小相关.
结论:
- 拟议的PECT方法对BLP的内部缺陷敏感.
- 差分PECT信号的峰值电压可以表现出线壁变薄和接口解接.
- 这种NDT方法显示了在BLP检查中实际应用的巨大潜力.
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