| 在线测量煤粉粒度分布和浓度的实验研究 |
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| 引用本文： | 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(32). |
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| 作者姓名： | 秦授轩 蔡小舒 |
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| 作者单位： | 上海理工大学能源与动力工程学院; |
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| 基金项目： | 国家自然科学基金重点项目(50836003)~~ |
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| 摘 要： | 锅炉的煤粉在线监测对于节能减排、燃烧优化等起重要作用。基于光脉动法在线测量煤粉平均粒度的原理,结合频谱分析方法,提出了光脉动谱法,可以在线测量煤粉的粒度分布和浓度。通过对光脉动法在线测得的煤粉时间序列信号进行分析,得到不同频率段煤粉的脉动信号,分析了各频率段脉动信号与煤粉粒度分布间的关系,据此得到煤粉的粒度分布和浓度。实验结果与取样筛分得到的煤粉粒度分布进行了比较,二者吻合很好。
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| 关 键 词： | 在线测量 光脉动谱法 煤粉 粒度分布 浓度 |
Experimental Study on In-line Measurement of Size Distribution and Concentration of Pulverized Coal |
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| QIN Shouxuan,CAI Xiaoshu.Experimental Study on In-line Measurement of Size Distribution and Concentration of Pulverized Coal[J].Proceedings of the CSEE,2010(32). |
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| Authors: | QIN Shouxuan CAI Xiaoshu |
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| Affiliation: | QIN Shouxuan,CAI Xiaoshu(School of Energy and Power Engineering,University of Shanghai for Science & Technology,Yangpu District,Shanghai 200093,China) |
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| Abstract: | In-line measurement of pulverized coal in utility boilers is important for optimization of combustion and reducing the emission of NOx.A novel method based on the principles of light fluctuation and spectrum analysis was proposed for measuring the size distribution and concentration of pulverized coal in power plant.By analyzing the power spectrum of time series signals of the transmitted light intensity with light fluctuation method,the relationship between the size and frequency of the signal was establis... |
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| Keywords: | in-line measurement light fluctuation spectrum pulverized coal size distribution concentration |
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