GAO Yang1 , YANG Bin1 , HE Yuan1 , CAI Xiaoshu1 , ZHAI Jinxing2 ， LYU Xuexia2 , GAO Chuang2 , LI Xinming2 , ZHANG Chao2 , GE Liqing3
(1. a. Institute of Particle and Two-phase Flow Measurement; b. Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; 2. Tongliao Huolinhe Pithead Power Company Limited, Tongliao 029200, China; 3. Tongliao General Power Plant, Tongliao 028011, China)
Abstract： To achieve the in-line measurement of pulverized coal fineness in coal pipes of power plants, the light fluctuation method combining the random variation of transmission light intensity and light scatting principles was presented for particle size measurement of gas -solid two phase flow, and the multi-probe and fixed in-line measurement system for coal fineness was developed. The system was applied to 600 MW power unit of Tongliao Huolinhe Pithead Power Company Limited. The pulverized coal fineness of 28 coal pipes was monitored in real time. The average results of in-line measuring results and off-line sampling results of this system were compared by the method of off-line sampling analysis. The results show that the relative deviation between the average results of in-line measuring results and off-line sampling results of this system is less than 12% , which indicates that this system has effectiveness for the fineness measurement of pneumatically conveyed pulverized coal.
Keywords: coal-fired power plant; gas-solid two phase flow; pulverized coal fineness; in-line measurement; light fluctuation method
中图分类号：TK227.1，TH89 文献标志码：A
文章编号：1008-5548(2015)02-0028-04
DOI:10.13732/j.issn.1008-5548.2015.02.007
收稿日期：2014-11-07， 修回日期：2014-11-23，在线出版时间：2015-04-17。
第一作者简介：高阳（1988—），男，硕士研究生，研究方向为多相流在线测量方法。 E-mail:15121002209@163.com。
通信作者简介：杨斌（1985—），男，博士，讲师，研究方向为多相流与燃烧在线测量方法。 E-mail: usst_yangbin@163.com。
