| 我国燃煤电站锅炉NOx排放的现状分析和应对措施 |
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| 引用本文： | 张海,吕俊复,徐秀清,曾瑞良,岳光溪.我国燃煤电站锅炉NOx排放的现状分析和应对措施[J].动力工程,2005,25(1):125-130. |
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| 作者姓名： | 张海 吕俊复 徐秀清 曾瑞良 岳光溪 |
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| 作者单位： | 清华大学,热能工程系,北京,100084 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 分析了我国电站锅炉NOx排放的现状,讨论了将低NOx燃烧器(LNB)与空气 燃烧分级相结合,以减少NOx排放的可行性。以清华大学最近开发成功的多重富集型LNB的结构原理和实践为例,阐述了LNB燃烧器的设计原则,强调了应当以系统的观念解决锅炉NOx的排放;分析了三次风对NOx排放的影响,指出现有三次风的使用和布置不利于降低NOx的排放,并对我国电站锅炉实现低NOx排放的研究工作提出了一些建议。图4参14
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| 关 键 词： | 环境工程学 电站锅炉 煤粉燃烧 低NOx燃烧 多重富集型低NOx燃烧器 三次风 |
| 文章编号： | 1000-6761(2005)01-0125-06 |
NOx Emission and Its Control in Utility Coal-fired Boilers in China |
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| ZHANG Hai,LU Jun-fu,XU Xiu-qing,ZENG Rui-liang,YUE Guang-xi.NOx Emission and Its Control in Utility Coal-fired Boilers in China[J].Power Engineering,2005,25(1):125-130. |
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| Authors: | ZHANG Hai LU Jun-fu XU Xiu-qing ZENG Rui-liang YUE Guang-xi |
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| Abstract: | The current situation of NO_x emission of utility boilers in China is being analyzed.The feasibility of lowering NO_x emission by adopting a firing that combines low NO_x burnesr (LNB) with staged combustion favorable for air/fuel reducing NO_x emission is discussed. An introductiom to the structure,principle and industrial application of the Multi-Enriched LNB (MELNB), recently developed by Tsinghua University is being presented to exemplify the design principle of LNB. It is emphasized that the control of NO_x emission should be considered in a systematic manner. In addition, the effects of tertiary air on NO_x emission are analyzed. Results indicate that the existing arrangement of tertiary air is unfavorable for the reduction of NO_x emission. Some suggestions conerning research on lowering NO_x emission of utility boilers are given. Figs 4 and refs 14. |
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| Keywords: | environmental engineering utility boiler pulverized coal combustion low NO_x combustion multi-enriched LNB(MELNB) tertiary air |
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