大型热电站锅炉中低含盐量补给水处理方案选择  

Make-up Water Treatment Scheme Selection for Thermal Power Plants with Water Source of Medium and Low Salt Content

作　　者：游晓宏[1] 

机构地区：[1]江苏省电力设计院,江苏南京211100

出　　处：《江苏电机工程》2010年第5期73-76,共4页Jiangsu Electrical Engineering

摘　　要：对以中低含盐量水为水源的大型全离子交换、超滤(UF)+反渗透(RO)+一级除盐+混床、UF+一、二级RO+混床和UF+一、二级RO+电除盐(EDI)4种锅炉补给水处理方案进行了技术经济分析。结果表明,以中低含盐量水为水源的大型锅炉补给水处理系统推荐采用技术性能优、投资和运行费用适中的UF+极低压RO+一级除盐+混床处理方案,当原水含盐量超过270 mg/L时,则应选择技术和经济性能均优的UF+RO+一级除盐+混床处理方案。This thesis carries out detailed technical economical analysis on four make-up water treatment schemes for large-scale boiler with water source of medium and low salt content,namely ＂total demineralization system,＂ ＂ultrafiltration plus reverse osmosis plus primary demineralization system plus mix bed,＂ ＂ultrafiltration plus primary and secondary reverse osmosis plus mix bed＂ and ＂ultrafiltration plus primary and secondary reverse osmosis plus electrodeionization.＂ Based on the analysis,the author has come to the conclusion that large-scale boiler make-up water treatment system with water source of medium and low salt content shall select ＂ultrafiltration plus extra-low pressure reverse osmosis plus primary demineralization system plus mix bed＂ scheme because of its excellent technical capability and moderate investment and operating expense.If the salt content of raw water exceeds 270mg/L,then ＂ultrafiltration plus reverse osmosis plus primary demineralization system plus mix bed＂ treatment scheme with superior technical and economic performance shall be chosen.

关 键 词：锅炉补给水 超滤 反渗透 电除盐 

分 类 号：TM621.8[电气工程—电力系统及自动化]