AP/CAP系列核电机组放射性水处理用水过滤器滤芯的研制  

Development of AP/CAP Series Nuclear Power Unit Radioactive Water Treatment Water Filter Element

作　　者：李源 王佳 刘夏城 王丰 孔海霞[1] 李昕 Li Yuan;Wang Jia;Liu Xiacheng;Wang Feng;Kong Haixia;Li Xin(China Institute for Radiation Protection,Taiyuan,030006;Sanmen Nuclear Power Co.Ltd.,Sanmen,Zhejiang,317112)

机构地区：[1]中国辐射防护研究院,太原030006 [2]三门核电有限公司,浙江三门317112

出　　处：《辐射防护通讯》2022年第2期14-20,共7页Radiation Protection Bulletin

摘　　要：水过滤器滤芯主要用来去除以胶体形式存在于水中的腐蚀产物和悬浮的固体颗粒物,是保证水质、降低介质和环境的放射性水平、改善工作环境的核心关键备件。依据行业标准NB/T 20486,对第三代AP/CAP系列核电机组放射性水处理用水过滤器滤芯进行国产化研制。本文对滤芯的结构、生产工艺过程和综合性能进行了详细介绍,所研制过滤精度为5μm和20μm的滤芯检测结果表明,滤芯的洁净压差均小于0.021 MPa,过滤效率均在99%以上,抗破裂压差值大于0.52 MPa,至少能承受45 kg的轴向载荷,耐辐照性能良好,各项性能指标均满足行业标准要求。The water filter element is mainly used to remove the corrosion products and suspended solid particles in the water in the form of colloid.It is the core key spare part to ensure the water quality,reduce the radioactivity level of the medium and the environment,and improve the working environment.According to the requirements of the technical specifications and the industry standard NB/T 20486,the third-generation AP/CAP series of radioactive water treatment water filter elements for nuclear power plants are domestically developed.This article gives a detailed introduction to the structure,production process and comprehensive performance of the filter element.The test results of the developed filter ele-ment with a filtration accuracy of 5μm and 20μm show that the clean pressure difference of the filter ele-ment is less than 0.021 MPa,and the filtration efficiency is above 99%.The rupture pressure difference is greater than 0.52 MPa,and it can bear an axial load of at least 45 kg,has good radiation resistance,and all performance indicators meet industry standards.

关 键 词：水过滤器滤芯 AP/CAP系列核电机组 放射性水处理 综合性能 国产化研制 

分 类 号：TL71[核科学技术—辐射防护及环境保护]