郑州大学学报（工学版）2024，Vol.45Issue(4)：140-146,7.DOI:10.13705/j.issn.1671-6833.2024.04.006
基于超声导波的高温管道壁厚监测技术优化
Optimization of Wall Thickness Monitoring Technology for High Temperature Pipelines Based on Ultrasonic Guided Waves
摘要
Abstract
Ultrasonic guided wave technology was often used for wall thickness monitoring system of high tempera-ture pipelines because it could isolate the ultrasonic transducer from the high temperature environment.However,the failure of conventional coupling technology and the low signal-to-noise ratio of the signal at high temperature af-fected the reliability and measurement accuracy of the measurement system.A waveguide rod was designed to con-duct ultrasonic signals.Based on the acoustic matching principle,the dry coupling technology was optimized to solve the failure problem of conventional coupling technology in high temperature environment.The adaptive excita-tion method and the power multiplication algorithm of measurement data were proposed to improve the adaptability and signal-to-noise ratio of the measurement system at high temperature.Intelligent segmentation of the speed of sound was used to correct the speed of sound,and the method made the measurement accuracy of the high-tempera-ture ultrasonic guided wave thickness measurement system reach±0.03 mm.The experimental results showed that the temperature of the ultrasonic transducer end was not more than 56℃at the maximum under the environment of a long term heat source of 500℃,which verified the reliability of the measurement system in high temperature en-vironments.关键词
超声导波技术/高温管道/壁厚测量/声速修正/长期监测可靠性Key words
ultrasonic guided wave technology/high temperature pipeline/wall thickness measurement/sound ve-locity correction/reliability of long-term monitoring分类
信息技术与安全科学引用本文复制引用
周俊岑,甘芳吉,王思宇,钟涛,杨随先..基于超声导波的高温管道壁厚监测技术优化[J].郑州大学学报（工学版）,2024,45(4):140-146,7.基金项目
中央高校基本科研业务费专项资金资助项目(2021CDZG-15-SCU) （2021CDZG-15-SCU）
四川省科技支撑计划项目(2021JDRC0090) （2021JDRC0090）
四川大学研究生培养教育创新改革项目(GSALK2021017) （GSALK2021017）
