发电机护环超声波相控阵检测工艺研究  

Research on the ultrasonic phased array detection technology of generator retaining rings

作　　者：李亮 李喆 杨伟东 丛培军 Li Liang;Li Zhe;Yang Weidong;Cong Peijun(Ningxia Electric Power Research Institute,State Grid Ningxia Electric Power Co.,Ltd.,Ningxia Yinchuan,750002,China;Ningxia Electric Power Energy Science&Technology Co.,Ltd.,Ningxia Yinchuan,750002,China)

机构地区：[1]国网宁夏电力有限公司电力科学研究院,宁夏银川750001 [2]宁夏电力能源科技有限公司,宁夏银川750001

出　　处：《机械设计与制造工程》2019年第9期89-94,共6页Machine Design and Manufacturing Engineering

摘　　要：研究了采用超声波相控阵技术检测发电机护环的可行性及工艺特性。通过对不同材质、声速的发电机护环试块进行测试,证明了声速大于5560 m/s的发电机护环均可采用超声波相控阵技术进行检测,并确定了检测时所需的检测系统、聚焦法则、灵敏度调整方法等。This paper mainly studies the feasibility and technological characteristics of ultrasonic phased array technology for testing generator retaining rings.Based on the testing the generator retaining rings in different materials and sound speed,it proves that the ultrasonic phased array technology can detect the generator retaining rings with sound speed more than 5560 m/s.It describes the detection system,focusing rule and sensitivity adjustment method.

关 键 词：护环 超声波相控阵 检测 

分 类 号：TM933[电气工程—电力电子与电力传动]