| 炉膛结构对炉内NOx生成的影响 |
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| 引用本文： | 朱彤,李晓萍,吴家正. 炉膛结构对炉内NOx生成的影响[J]. 工业炉, 2004, 26(6): 1-4,50 |
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| 作者姓名： | 朱彤 李晓萍 吴家正 |
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| 作者单位： | 同济大学,机械工程学院,上海,200092;同济大学,机械工程学院,上海,200092;同济大学,机械工程学院,上海,200092 |
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| 基金项目： | 国家自然科学基金资助项目(50206014). |
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| 摘 要： | 分析了炉膛结构以及烧嘴布置方式对流场、火焰温度、组分分布和NOx生成量的影响.研究结果表明当炉膛顶部同时布置烧嘴和排烟口时,燃烧主射流对炉膛排烟的卷吸将降低助燃空气射流中的氧气浓度和燃气射流中的可燃物浓度,进而降低氮氧化物的排放;此外,NOx排放量同烟气在炉内停留时间有关,其浓度将沿烟气流程逐渐增加.
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| 关 键 词： | 炉膛结构 烧嘴结构 温度分布 NOx |
| 文章编号： | 1001-6988(2004)06-0001-04 |
| 修稿时间： | 2004-08-16 |
Effect of Furnace Configuration on Flow Field and NOx Emission |
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| ZHU Tong,LI Xiao-ping,WU Jia-zheng. Effect of Furnace Configuration on Flow Field and NOx Emission[J]. Industrial Furnace, 2004, 26(6): 1-4,50 |
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| Authors: | ZHU Tong LI Xiao-ping WU Jia-zheng |
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| Abstract: | The effects of furnace configuration and arrangement of burner on flow field, flame temperature, distribution of flue gas species and NO_x emission were investigated in this paper. The results show that the combustion air jet and fuel gas jet would entrain the exhaust flue gas if both of the burner and the exit of flue gas were arranged on the top of furnace, which would decrease the concentration of oxygen and combustible material in their jets before ignition. Therefore, NO_x emission reduced. In addition, NO_x concentration in flue gas increases along with flue gas flow. |
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| Keywords: | furnace configuration configuration of burner temperature distribution NO_x |
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