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《Physical Testing and Chemical Analysis(Part A:Physical Testing)》 2017-02
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On-line Ultrasonic Measurement of Pulverized Coal Flux in Coal-powder Boilers

HOU Huai-shu;CHEN Chao-lei;ZHU Bing-bing;YAN Zhen-rong;College of Mechanical Engineering,Shanghai Institute of Technology;Shanghai Boiler Works Ltd.;  
Based on ECAH theoretical model,the relationship between the pulverized coal volume fraction and the ultrasonic attenuation coefficient in pulverized coal solid-gas two-phase flow was analyzed.The pulverized coal flow velocity and volume fraction were measured with two ultrasonic probes whose axes were concentric with a45°angle to the pulverized coal pipeline axis,and the on-line measurement of pulverized coal flux of pulverized coal solid-gas two-phase flow was realized.The results show that the test results obtained by ultrasonic method agreed well with the actual supply quantity of pulverized coal pre-set on the test platform,which indicated that measuring the pulverized coal flux with this method was feasible and reliable.
【Fund】: 上海市质量技术监督局科研计划资助项目(2013-51)
【CateGory Index】: TB553;TM621.2
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