过滤+精除盐旁流处理工艺在间接空冷循环水系统中的应用研究  

Research on the Application of Filtration+Fine Desalination By-flow Treatment Technology in Indirect Air-Cooling Circulating Water System

作　　者：涂孝飞 张晓军 姜明 TU Xiaofei;ZHANG Xiaojun;JIANG Ming(Xi'an Branch of North China Electric Power Research Institute Co.,Ltd.,Xi'an,Shaanxi 710065,China;Inner Mongolia Jingneng Shuangxin Power Generation Co.,Ltd.,Wuhai,Inner Mongolia 016100,China;Shenhua Guohua Ningdong Power Generation Co.,Ltd.,Lingwu,Ningxia 750403,China)

机构地区：[1]华北电力科学研究院有限责任公司西安分公司,陕西西安710065 [2]内蒙古京能双欣发电有限公司,内蒙古乌海016100 [3]神华国华宁东发电有限责任公司,宁夏灵武750403

出　　处：《山西电力》2022年第2期61-64,共4页Shanxi Electric Power

摘　　要：对某电厂间接空冷循环水水质异常现象进行了详细分析,综合比较了目前常用的间接空冷循环水水质调整方式的优缺点,通过采用过滤+精除盐旁流处理工艺,彻底解决了间接空冷循环水品质差对系统铝材质腐蚀的安全隐患,并有效地将间接空冷水水质控制在pH=6.7~8.0、ρ(SiO_(2))≤10 g/L、导电率≤2.0μS/cm、ρ(Al^(3+))≤8μg/L、ρ(悬浮物)≤5 mg/L的标准范围内,保证了机组的长期安全稳定运行。The abnormal water quality of indirect air-cooling circulating water in a power plant is analyzed in detail.The advantages and disadvantages of the commonly used water quality adjustment methods are compared comprehensively,and filtration+fine desalination by-flow treatment is proposed.Thus,the hidden danger of aluminum corrosion in the system caused by poor quality of indirect air-cooling circulating water is completely solved,and the water quality of indirect air-cooling circulating water is effectively controlled within the standard range of pH=6.7~8.0,ρ(SiO_(2))≤10 g/L,SC≤2.0μS/cm,ρ(Al^(3+))≤8 g/L,ρ(SS)≤5 mg/L,which ensures the long-term safe and stable operation of the units.

关 键 词：间接空冷 过滤+精除盐旁流处理 技术改造 循环水水质 

分 类 号：TM621.8[电气工程—电力系统及自动化]