光纤传感技术在核电厂的应用研究  

Research on Application of Optical Fiber Sensing Technology in Nuclear Power Plant

作　　者：向美琼 刘艳阳[1] 青先国[1] 吴茜[1] 王雪梅 邓志光 XIANG Meiqiong;LIU Yanyang;QING Xianguo;WU Qian;WANG Xuemei;DENG Zhiguang(Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institude of China,Chengdu 610213,China)

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术国家级重点实验室

出　　处：《自动化仪表》2019年第6期132-136,共5页Process Automation Instrumentation

摘　　要：对光纤传感技术的优势、原理、分类、发展趋势、已有应用作了分析。光纤传感器具有抗电磁干扰、耐事故能力强、小型化、精度高等优点,已应用于各行各业,但在核领域还没有应用。国外对光纤传感器在核电厂的应用研究起步早,得出了很多重要结论;而国内研究晚,研究内容少。结合核电厂的过程参数测量需求与光纤传感器的优势,拟出了光纤传感器在核电厂的应用路线,提出了采用光纤传感器对堆芯温度、中子通量、一回路温度、压力、流量、液位、管道泄漏和安全壳温度、压力、辐射、湿度、氢气浓度等参数进行测量的全光系统解决方案。分析了限制光纤传感器在核电厂应用的最大因素,即光纤的辐照损伤效应。提出了几点辐照加固措施,为后期研究光纤传感器在核电厂的应用提供了思路。The advantages,principles,classification,development trend and existing applications of optical fiber sensing technology are analyzed.Optical fiber sensors have the advantages of anti-electromagnetic interference,strong accident resistance,miniaturization and high precision.They have been applied in various fields,but there is no application in the nuclear field.Foreign research on the application of optical fiber sensors in nuclear power plants started early,and many important conclusions were drawn,while domestic research is late and the research content is less.Combining the process parameter measurement requirements of nuclear power plants with the advantages of optical fiber sensors,the application route of optical fiber sensors in nuclear power plants is proposed.An all-optical system scheme using optical fiber sensors to measure core temperature,neutron flux,primary circuit temperature,pressure,flow,liquid level,pipeline leakage and containment temperature,pressure,irradiation dose,humidity,hydrogen concentration is proposed.The most important factor limiting the application of optical fiber sensors in nuclear power plants,i.e.,the radiation damage effect of optical fibers,is analyzed.Some ideas for the later research on the application of fiber optic sensors in nuclear power plants are also provided.

关 键 词：光纤传感器 全光系统 本质安全 核电厂 过程测量 辐照损伤 辐照加固 

分 类 号：TH-89[机械工程]