面向核电冷却泵振动监测的压电加速度传感器应用研究  

Application Study on Piezoelectric Acceleration Sensor for Vibration Monitoring of Nuclear Power Cooling Pump

作　　者：袁宇鹏 梅勇 齐良才 张祖伟 李小飞[1,2] 王登攀 YUAN Yupeng;MEI Yong;QI Liangcai;ZHANG Zuwei;LI Xiaofei;WANG Dengpan(Chongqing Acoustics-Optics-Electronics Co.,Ltd.,China Electronics Technology Group Corp.,Chongqing 401332,China;The 26th Institute of China Electronics Technology Group Corporation,Chongqing 400060,China;Beijing Branch,Shanghai Zhongguanghe Engineering Technology Co.,Ltd.,Beijing 100086,China)

机构地区：[1]中电科技集团重庆声光电有限公司,重庆401332 [2]中国电子科技集团公司第二十六研究所,重庆400060 [3]上海中广核工程科技有限公司北京分公司,北京100086

出　　处：《压电与声光》2022年第6期940-943,共4页Piezoelectrics & Acoustooptics

基　　金：国家重点研发计划基金资助项目(2017YFF0105400)。

摘　　要：压水堆型核电机组的冷却剂泵振动状态监测是核电站检修的重要内容之一。该文针对我国某核电站冷却剂泵振动状态监测中对耐高温抗强辐射的加速度传感的需求,开展了压电加速度传感器在极限环境下的工作特性研究。实验结果表明,传感器的工作温度可达-55~480℃,抗辐照强度可达1×106Gy。通过振动台架实验验证了传感器的工作状态,结果表明传感器的输出振动信号与5g(g≈9.8 m/s2)、10g的标准振动信号输出结果一致;提出了满足核电现场应用要求的振动监测方案,并在我国某核电站冷却剂泵上进行了实际应用,实验结果满足核电站使用需求,为未来的批量应用奠定了技术基础。The monitoring of the vibration state of the coolant pump of the pressurized-water reactor(PWR) nuclear power units is one of the important tasks in the maintenance of the nuclear power plants. In this work, in view of the demands for the acceleration sensor with high temperature resistance and strong radiation resistance for the vibration state monitoring of the coolant pump of a nuclear power plant in our country, the working characteristics of piezoelectric acceleration sensor in extreme environments are studied. The experimental results show that the working temperature of the proposed sensor is up to-55~480 ℃, the radiation resistance is up to 1×10~6 Gy. The operating state of the sensor has been verified through the vibration bench test. The results show that the output vibration signals of the sensor are consistent with that of the 5g(g≈9.8 m/s~2) and 10g standard vibration signals. A vibration monitoring scheme than meets the requirements of nuclear power field application is proposed, and has been applied to a coolant pump of a nuclear power plant in our country. The experimental results meet the needs of nuclear power plants and lay a technical foundation for future batch application.

关 键 词：压电加速度传感器 高温 辐照 振动 核电 

分 类 号：TN384[电子电信—物理电子学] TM282[一般工业技术—材料科学与工程] TP212[电气工程—电工理论与新技术]