压力容器表面缺陷涡流检测系统设计与实现

Research on Eddy Current Testing System for Surface Defects of Pressure Vessels

摘要:

随着石油、能源、化工等行业的迅速发展，能源运输与能源储备需求日益增加，石油管道和大型储罐等带涂层压力容器的可靠性和安全性极其重要，压力容器表面涂层的存在导致定期检查时基体表面缺陷无法被直接辨识，因此需要使用更高效准确的无损检测方法对其进行检测。阵列涡流检测技术继承了常规涡流检测技术的表面要求低、无需耦合、检测速度快等优点。基于基础涡流检测实验系统结合硬件电路及上位机搭建集成化涡流检测系统，之后通过实验数据分析实际检测中传感器输出信号与缺陷之间的关系，验证了搭建的集成化涡流检测系统与所设计传感器对缺陷检测的有效性。

Abstract:

With the rapid development of industries such as petroleum, energy, and chemical, the demand for energy transportation and energy reserves is increasing. The reliability and safety of coated pressure vessels such as oil pipelines and large storage tanks are extremely important. The presence of surface coatings on pressure vessels makes it difficult to directly identify surface defects during regular inspections. Therefore, more efficient and accurate non-destructive testing methods are needed to detect them. The array eddy current detection technology inherits the advantages of conventional eddy current detection technology, such as low surface requirements, no coupling, and fast detection speed. Based on the basic eddy current detection experimental system combined with hardware circuits and upper computer, an integrated eddy current detection system was built. Then, through experimental data analysis of the relationship between sensor output signals and defects in actual detection, the effectiveness of the integrated eddy current detection system and the designed sensor for defect detection was verified.