核电厂放射性废液环境对设备衬胶耐老化性能的影响  

The Effect of the Radioactive Waste Liquid Environment in Nuclear Power Plants on the Aging Resistance of Equipment Linings

作　　者：贾斌斌[1] 黄皓 张树刚 韩健 彭舒舒 关银柏 JIA Binbin;HUANG Hao;ZHANG Shugang;HAN Jian;PENG Shushu;GUANG Yinbo(Suzhou Nuclear Power Research Institute Co.,Ltd.,Suzhou,Jiangsu Province,215004 China;Taishan Nuclear Power Joint Venture Co.,Ltd.,Jiangmen,Guangdong Province,529228 China)

机构地区：[1]苏州热工研究院有限公司,江苏苏州215004 [2]台山核电合营有限公司,广东江门529228

出　　处：《科技资讯》2024年第4期186-189,共4页Science & Technology Information

摘　　要：国内某核电厂放射性废液收集、处理、贮存、排放系统容器类设备采用内衬橡胶防腐设计,随着服役时间增长,内衬橡胶层性能会逐渐降低,乃至老化失效,影响设备运行安全,甚至导致放射性液体泄漏。通过橡胶热老化实验,推算对比内衬胶板在辐照、辐照浸渍等不同条件下的使用寿命;通过红外测试、热重测试、冲击强度测试、硬度测试,对比原始胶板、辐照胶板、辐照浸渍胶板等各项理化性能的变化,最终确定核电厂放射性废液环境下橡胶老化的主要影响因素。The container equipment of the collection,treatment,storage and discharge system of radioactive waste liquid in a nuclear power plant in China adopts rubber-lined anti-corrosion design.With the increase of service time,the performance of the lined rubber layer will gradually decrease,even age and fail,which affects the safety of equipment operation and even leads to the leakage of radioactive liquid.This paper calculates and compares the service life of lined rubber plates under different conditions such as irradiation and irradiation immersion through thermal aging experiments for rubber,compares the changes of the physical and chemical properties of original rubber plates,irradiated rubber plates and irradiated impregnated rubber plates through infrared tests,thermogravimetric tests,impact strength tests and hardness tests,and ultimately determines the main influencing factors of rubber aging in the radioactive waste environment of nuclear power plants.

关 键 词：放射性废液 辐照橡胶 老化性能 寿命评估 

分 类 号：TL94[核科学技术—辐射防护及环境保护]