铀包装容器含水量计算分析  

Analysis of Water Contents in Uranium Packaging Containers

作　　者：盛俊杰[1] 李佳[1] 张玉庆[1] 李树勇[1] 廖彬[1] SHENG Junjie;LI Jia;ZHANG Yuqing;LI Shuyong;LIAO Bin(Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang, Sichuan 621900, P.R.China)

机构地区：[1]中国工程物理研究院总体工程研究所

出　　处：《应用数学和力学》2019年第9期1048-1058,共11页Applied Mathematics and Mechanics

摘　　要：以铀材料腐蚀理论、Henry定律、渗透与泄漏理论为基础,建立了铀包装容器的含水量理论计算方法,分析了铀包装容器在不同状态下的水分含量及其变化规律.结果表明,水分的泄漏量、渗透量和泄漏渗透处两端的压力差成正比,渗透与材料本身的渗透系数有关;有机材料吸附水不仅与材料自身的饱和含水率有关,而且和有机材料所处的水分分压有关;铀水反应消耗水量与铀材料质量、表面积及时间成正比.水分的渗透、环境湿度及有机材料吸附水是影响铀包装容器中水分的主要因素.The calculation method and changing rules for water contents in uranium packaging containers were studied based on the corrosion theory of uranium, the Henry law and the permeation and leakage theory. The results show that, the water permeation and leakage are proportional to the partial pressure difference across the seal and the permeation is related to the permeability coefficient of the material. The water mass absorbed by organic materials is dependent not only on the saturated water content but also on the relative humidity. The water consumed by corrosion reaction of uranium with water is a function of the time, the uranium mass and the reacting surface area of the specimen. The water contents in uranium packaging containers are mainly influenced by the water permeation, the relative humidity of environment and the water absorption in organic materials, but is less influenced by the water leakage.

关 键 词：铀 包装容器 水分 相对湿度 渗透与泄漏 

分 类 号：TG146.8[一般工业技术—材料科学与工程] TB485.2[金属学及工艺—金属材料]