低NOx燃烧一维模型二次风位置研究

2012 IEEE 6th International Conference on Information and Automation for Sustainability Pub Date : 2012-09-01 DOI:10.1109/ICIAFS.2012.6419920

X. Gou, Jinxiang Wu, Liansheng Liu, E. Wang, Junhu Zhou, Jianzhong Liu, K. Cen

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引用次数: 0

摘要

本研究建立了煤粉直流式低NOx燃烧新模型，研究了烟气温度、氧浓度、时间消耗和距离之间的关系。详细讨论了点火燃烧区模型。结果表明，气体温度和氧浓度随距离的变化而变化。根据对NOx生成有显著影响的气体温度和氧浓度，可以确定适当的二次空气喷射位置。该模型可用于设计或改造低NOx燃煤锅炉时确定二次风的喷射位置。将该模型与预点火模型和再燃烧技术一起应用于电厂锅炉，使NOx总体减少了48%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Research on the secondary air position for the one-dimensional model of low NOx combustion

This study developed a new model of low NOx combustion for the direct flow of pulverized coal, which enabled the relationships among gas temperature, oxygen concentration, time consumption, and distance to be investigated. A model of the ignition and combustion zone was discussed in detail. It was shown that the gas temperature and the oxygen concentration change with the distance. The proper position of the secondary air injection can be obtained according to the gas temperature and the oxygen concentration which significantly affect NOx formation. The model can be used to determine the injection position of the secondary air for the design or modification of boilers for low NOx coal combustion. Application of the model to a power plant boiler together with pre-ignition model and reburning technology enabled an overall 48% reduction of NOx to be obtained.

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来源期刊

2012 IEEE 6th International Conference on Information and Automation for Sustainability

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