燃煤锅炉中煤粉流量的超声波在线检测
On-line Ultrasonic Measurement of Pulverized Coal Flux in Coal-powder Boilers
摘 要
以ECAH理论模型为基础，分析了煤粉气固两相流中煤粉体积分数与超声波衰减系数之间的关系，通过两支同轴且轴线与煤粉管道轴线成45°夹角的超声波探头测试煤粉的流速与煤粉颗粒的体积分数，实现了煤粉气固两相流中煤粉流量的在线检测。结果表明：采用超声波方法在线检测气固两相流中的煤粉流量与实际试验测试平台所设定的给煤量吻合较好，表明了该方法在线检测煤粉流量的可行性与可靠性。
煤粉流量
超声波
在线检测
ECAH理论模型
gas-solid two-phase flow
pulverized coal flux
ultrasonic
on-line measurement
ECAH theoretic model
Abstract
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 a 45° 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.
中图分类号 TG115.28 DOI 10.11973/lhjy-wl201702008
所属栏目 试验技术与方法
基金项目 上海市质量技术监督局科研计划资助项目（2013-51）
收稿日期 2016/9/1
修改稿日期
网络出版日期
作者单位点击查看
备注侯怀书(1972-),男,副教授,博士,主要从事超声波检测的研究,hhs927@126.com。
引用该论文: HOU Huai-shu,CHEN Chao-lei,ZHU Bing-bing,YAN Zhen-rong. On-line Ultrasonic Measurement of Pulverized Coal Flux in Coal-powder Boilers[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2017, 53(2): 110～113
侯怀书,陈朝雷,朱兵兵,严祯荣. 燃煤锅炉中煤粉流量的超声波在线检测[J]. 理化检验－物理分册, 2017, 53(2): 110～113
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】敖哲. 锅炉水冷壁爆管原因分析[J].理化检验-物理分册,2014,50(4):296-298.
【2】黄卫冲.锅炉对流管开裂原因分析[J].理化检验-物理分册,2014,50(5):365-367.
【3】YAN Y.Mass flow measurement of bulk solids in pneumatic pipelines[J].Measurement Science and Technology,1996,7(12):1687-1706.
【4】刘仁学,金锋,陆增喜,等.高炉喷吹煤粉总管质量流量的在线连续测量[J].钢铁,2000,35(1):9-12.
【5】秦授轩,蔡小舒.在线测量煤粉粒度分布和浓度的实验研究[J].中国电机工程学报,2010,30(32):30-34.
【6】廖宏楷,周昊,杨华,等.风煤在线测量的锅炉燃烧优化系统[J].动力工程,2005,25(4):559-562.
【7】方彦军,李敏.火电厂锅炉一次风风速及给粉浓度在线监测系统[J].动力工程,1998,18(6):47-49.
【8】BARRATT I R,YAN Y,BYRNE B,et al.Mass flow measurement of pneumatically conveyed solids using radiometric sensors[J].Flow Measurement and Instrumentation,2000,11(3):223-235.
【9】侯怀书,段广彬,苏明旭,等.煤粉气-固两相流的超声波衰减特性[J].中国粉体技术,2012,18(6):39-41.
【10】EPSTEIN P S,CARHART R R.The absorption of sound in suspensions and emulsions I Water fog in air[J].The Journal of the Acoustical Society of America,1953,25(3):553-565.
【11】ALLEGRA J R.Attenuation of sound in suspensions and emulsions:Theory and experiments[J].The Journal of the Acoustical Society of America,1972,51(5):1545-1564.
【12】MCCLEMENTS D J.Principles of ultrasonic droplet size determination in emulsions[J].Langmuir,1996,12(14):3454-3461.
【13】SU M X,XUE M H,CAI X S,et al.Particle size characterization by ultrasonic attenuation spectra[J].Particuology,2008,6(4):276-281.
【2】黄卫冲.锅炉对流管开裂原因分析[J].理化检验-物理分册,2014,50(5):365-367.
【3】YAN Y.Mass flow measurement of bulk solids in pneumatic pipelines[J].Measurement Science and Technology,1996,7(12):1687-1706.
【4】刘仁学,金锋,陆增喜,等.高炉喷吹煤粉总管质量流量的在线连续测量[J].钢铁,2000,35(1):9-12.
【5】秦授轩,蔡小舒.在线测量煤粉粒度分布和浓度的实验研究[J].中国电机工程学报,2010,30(32):30-34.
【6】廖宏楷,周昊,杨华,等.风煤在线测量的锅炉燃烧优化系统[J].动力工程,2005,25(4):559-562.
【7】方彦军,李敏.火电厂锅炉一次风风速及给粉浓度在线监测系统[J].动力工程,1998,18(6):47-49.
【8】BARRATT I R,YAN Y,BYRNE B,et al.Mass flow measurement of pneumatically conveyed solids using radiometric sensors[J].Flow Measurement and Instrumentation,2000,11(3):223-235.
【9】侯怀书,段广彬,苏明旭,等.煤粉气-固两相流的超声波衰减特性[J].中国粉体技术,2012,18(6):39-41.
【10】EPSTEIN P S,CARHART R R.The absorption of sound in suspensions and emulsions I Water fog in air[J].The Journal of the Acoustical Society of America,1953,25(3):553-565.
【11】ALLEGRA J R.Attenuation of sound in suspensions and emulsions:Theory and experiments[J].The Journal of the Acoustical Society of America,1972,51(5):1545-1564.
【12】MCCLEMENTS D J.Principles of ultrasonic droplet size determination in emulsions[J].Langmuir,1996,12(14):3454-3461.
【13】SU M X,XUE M H,CAI X S,et al.Particle size characterization by ultrasonic attenuation spectra[J].Particuology,2008,6(4):276-281.
相关信息
