超高压管式反应器无损检测技术研究进展

Progress on NDE Technology and Fault Mechanism of Ultra-high Pressure Tubular Reactor

超高压自增强管式反应器在聚乙烯装置中的重要地位决定其一旦发生破坏后果十分严重,对这类设备缺少有效检验方法及失效判据。厚壁筒结构的超高压管式反应器无损检测主要以表面检测为主,如工业内窥镜检查、磁粉检测、渗透检测、磁记忆检测及涡流检测等。全面检验推荐使用超声波检测,由此可以检测到部件内部缺陷并兼顾内表面缺陷,在使用过程中则可用声发射进行实时监测。

Ultra-high pressure tubular reactor is one of the most important equipments in polythene industry. NDT is the effective methods to ensure the quality of the product and safety run- ning. The primary NDT methods for ultra-high pressure vessel in service are industrial inner peek-mirror examination, magnetic powder testing, penetration testing, metal magnetic memory testing, eddy current testing and so on. Ultrasonic testing not only examined the inner defects but also the inner surface defects. Acoustic emission testing could be used to monitor the pressure vessel real-time during operation of pressure vessel.