Development of Metal Pipeline Corrosion Detecting Instrument Based on Electromagnetic Ultrasonic
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摘要: 为了解决高温金属管道的内壁腐蚀检测,研制了基于电磁超声检测技术的金属管道腐蚀检测仪.该仪器采用电磁超声探头激发垂直入射波或表面波,通过测量管道壁厚或管壁缺陷的反射波来检测腐蚀情况.仪器由电磁超声探头,发射、接收电路、数字信号处理电路和腐蚀检测分析软件组成.检测结果以“B”扫描图或“C”扫描图显示,并进行定量分析,能够直观地帮助检测人员判断金属管道或罐体的内壁腐蚀情况,为安全生产和管道安全评估提供依据.Abstract: In order to solve the high temperature metal pipeline internal corrosion detection,a metal pipeline corrosion detecting instrument based on electromagnetic ultrasonic detection technology was developed.The instrument adopts the electromagnetic ultrasonic probe excitation of vertical incident wave or surface wave,and the corrosion state of the pipeline is obtained by measuring the wall thickness or by detecting reflection waves from the pipe wall corrosion defects.The instrument consists of electromagnetic ultrasonic probe,transmission and receiving circuits,digital signal processing circuit and corrosion detection analysis software components.Testing results were shown by “B” or “C” scanning images and were quantitatively analyzed.The instrument can help people to judge the corrosion state of inner wall of pipelines or tanks,providing the basis for safety production and assessment of pipeline.
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[1] 美国无损检测学会.美国无损检测手册 超声卷(上册)[M].上海:世界图书出版社,1996:499. [2] 刘颖,廖柯熹,刘长林,等.含腐蚀缺陷管道的剩余强度评价方法[J].天然气与石油,2008,26(2):41-44. [3] 翁永基,卢绮敏.腐蚀管道最小壁厚测量和安全评价方法[J].油气储运,2003,22(12):40-43.
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