汽轮机转子菌形叶根超声相控阵检测

摘要

The steam turbine is one of the most important rotation equipments in the Nuclear Power Plant,the blade of steam turbine is likely to engender crack in the root position that may eventually affect the safety work of low-pressure rotor.The article mainly introduces ultrsonic phased array technology on methods concerning the blade of steam turbine.It is helpful to master the method on how to judge the defects according to the inspection technique of Mushroom shaped leaf root.The inspection result indicated that present technique had good application effectiveness,and the development of the ultrsonic phased-array technology of blade root had great significance in the area of assuring the safety and reliability of running condition of steam turbine.%汽轮机转子是电厂重要的转动设备,高速旋转可能导致叶片叶根裂纹产生,从而影响到低压转子的安全运行。通过对汽轮机转子菌形叶根超声相控阵检测技术研究,掌握叶根缺陷信号的判断方法。检测结果表明：开发超声相控阵检验技术应用效果良好,在保证电厂汽轮机安全、可靠运行上起了重要的作用。