| 煤粉燃烧时NOx析出规律的试验研究 |
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| 引用本文： | 樊俊杰,金晶,钟海卿,陈占军. 煤粉燃烧时NOx析出规律的试验研究[J]. 锅炉技术, 2005, 36(3): 38-41 |
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| 作者姓名： | 樊俊杰 金晶 钟海卿 陈占军 |
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| 作者单位： | 上海理工大学,动力工程学院,上海,200093;上海理工大学,动力工程学院,上海,200093;上海理工大学,动力工程学院,上海,200093;上海理工大学,动力工程学院,上海,200093 |
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| 基金项目： | 上海市发展基金资助项目(F20109) |
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| 摘 要： | 在一维沉降炉上系统地考察了煤粉燃烧时NOx的沿程排放特性及其影响因素.试验表明,NOx的生成与炉温、煤粉粒度、煤种、过量空气系数等因素密切相关;在其它条件相同的情况下,NOx的生成浓度随过量空气系数的增大而增大;随着温度的升高略有增大;挥发分含量、氮含量高的煤种NOx的生成也相对较多;煤粉燃烧存在一个临界粒径(dc).当d＞dc时,其NOx浓度随粒径的增大而减小;当d＜dc时,其NOx浓度随粒径的减小而减小.(通过对NOx生成规律的分析研究,对今后低NOx燃烧技术的改进具有一定的指导意义.)
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| 关 键 词： | 析出 氮氧化合物 煤粉 燃烧 |
| 文章编号： | CN31-1508(2005)03-0038-04 |
| 修稿时间： | 2004-06-02 |
Experimental Study on the NOx Releasing from Pulverized Coal Combustion |
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| FAN Jun-Jie,JIN Jing,Zhong Hai-qing,CHEN Zhan-jun. Experimental Study on the NOx Releasing from Pulverized Coal Combustion[J]. Boiler Technology, 2005, 36(3): 38-41 |
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| Authors: | FAN Jun-Jie JIN Jing Zhong Hai-qing CHEN Zhan-jun |
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| Affiliation: | FAN Jun-jie,JIN Jing,ZHONG Hai-qing,CHEN Zhan-junCollege of Power Engineering,University of Shanghai for Science & Technology,Shanghai 200093,China |
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| Abstract: | The behavior of NO_x emission in the furnace burning with pulverized coal and the effect factors have been studied. The results showed that NO_x emissions are close related to the hearth temperature, particle size, coal sort, stoichiometric ratio etc. The NO_x concentration increases with the increase of the furnace temperature, stoichiometric ratio, content of volatile and nitrogen in coal powder. There exists a critical diameter (d_c). If d>d_c, the NO_x concentration reduces with the increase of the pulverized coal size; If d
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| Keywords: | releasing NO_x pulverized coal combustion |
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