高湿烟气中超低浓度细颗粒物测试方法研究  

Research on ultra-low concentration particle measurement in high humidity flue gas

作　　者：常倩云 杨正大 郑成航[1] 方梦祥[1] 高翔[1] 骆仲泱 岑可法[1] CHANG Qian-yun;YANG Zheng-da;ZHENG Cheng-hang;FANG Meng-xiang;GAO Xiang;LUO Zhong-yang;CEN Ke-fa(State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China)

机构地区：[1]浙江大学能源清洁利用国家重点实验室,浙江杭州310027

出　　处：《中国环境科学》2017年第7期2450-2459,共10页China Environmental Science

基　　金："973项目"(2013CB228504);国家科技支撑计划(2015BAA05B02);中央高校基本科研业务费专项资金项目(2016FZA4009)

摘　　要：总结和比较了国内外常用的颗粒物采样测试系统及方法,从颗粒物测量原理、采样方法的结构和特点、适用范围、误差来源等角度分析了采样系统的特点及准确性,并结合我国燃煤电厂脱硫塔、湿式静电除尘器出口等位置实际排放情况,提出适用于低浓度、高湿度条件下的超低浓度颗粒物的可靠测试方法.为燃煤电厂颗粒物排放浓度的准确测量和环保设备对颗粒物控制效果的运行和评估提供保证.Particle sampling and measurement methods and systems in China and abroad were concluded and compared,the measurement principles,configurations and characteristics of sampling systems,applicable scopes,particle transition and loss were analysed.A reliable ultra-low concentration particle measurement solution was achieved to meet the situation at the testing spots after flue gas desulfurization systems(FGDs)and wet electrostatic precipitators(WESPs)where the flue gas is in high humidity,which guarantees accuracy and reliability of particle emission concentration analysis and flue gas purification equipment operation assessment.

关 键 词：超低排放 颗粒物测试 PM2.5 采样系统 燃煤电厂 

分 类 号：X513[环境科学与工程—环境工程] X831