光脉动法在线测量煤粉粒度分布的实验研究  

Online Measurement of Size Distribution of Pulverized Coal with Light Fluctuation Method

作　　者：秦授轩[1] 蔡小舒[1] QIN Shouzuan;CAI Xiaoshu(School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, Chin)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《动力工程学报》2018年第4期272-277,共6页Journal of Chinese Society of Power Engineering

基　　金：国家自然科学基金资助项目(51327803;51576130)

摘　　要：结合随机理论和透射光信号统计特性,提出了光脉动法,用于测量电厂煤粉颗粒粒度分布参数,并搭建了液固实验台进行了实验验证。结果表明:该方法可以有效、稳定地得到颗粒粒度分布参数;将该方法与小波重构技术结合起来处理电厂实测数据,可以有效地去除浓度变化和过采样的影响,得到有效的煤粉颗粒粒度和浓度信息。Based on random theory and statistical properties of transmission light,a light fluctuation method was proposed to measure the size distribution of pulverized coal in power plant,which was verified with a self-developed experimental setup.Results show that via the method,the parameters of size distribution could be effectively obtained.By combining with wavelet reconstruction technology,the method can be used to process actual data of a power plant,during which the influence caused by concentration fluctuation and oversample could be avoided,thus obtaining accurate information of size distribution and concentration of the pulverized coal.

关 键 词：煤粉 在线测量 光脉动法 粒度分布 

分 类 号：TK39[动力工程及工程热物理—热能工程]