| 用可调卫燃带改善燃煤锅炉低负荷燃烧效率 |
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| 引用本文： | 陈冬林,鄢晓忠,刘亮,夏侯国伟. 用可调卫燃带改善燃煤锅炉低负荷燃烧效率[J]. 动力工程, 2001, 21(5): 1390-1395 |
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| 作者姓名： | 陈冬林 鄢晓忠 刘亮 夏侯国伟 |
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| 作者单位： | 长沙电力学院动力工程系 |
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| 基金项目： | 华中电力集团公司 99重点攻关项目 |
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| 摘 要： | 分析了现有燃煤锅炉低负荷运行时燃烧效率偏低的原因，提出了可调卫燃带的概念及模型。指出在低负荷运行时可调卫燃带提高燃烧效率的机理在于能在炉内构建一合理的温度场；介绍了低负荷运行时可调卫燃带对炉内温度场及燃烧率影响的模拟试验结果，试验表明：可调卫燃带对改善锅炉低负荷时炉内温度分布及提高燃烧效率具有十分明显的效果，图8参6
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| 关 键 词： | 锅炉 卫燃带 燃烧效率 低负荷燃烧 运行 电站 煤粉锅炉 |
| 文章编号： | 1000-6761(2001)05-1390-06 |
Improve Combustion Efficiency of Coal-Fired Boiler at Low Load Using Movable Heat-Insulate Layer |
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| CHEN Dong lin,YIAN Xiao zhong,LIU Liang,XIAHOU Guo wei. Improve Combustion Efficiency of Coal-Fired Boiler at Low Load Using Movable Heat-Insulate Layer[J]. Power Engineering, 2001, 21(5): 1390-1395 |
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| Authors: | CHEN Dong lin YIAN Xiao zhong LIU Liang XIAHOU Guo wei |
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| Abstract: | The reason for low combustion efficiency when coal fired boiler operates at low load is analyzed in this paper, hereby the conception and model of movable heat insulate layer is put forward, then the mechanism that movable heat insulate layer improve combustion efficiency by maintaining a suitable temperature profile in furnace is analyzed in detail. Finally, the experimental investigation results, which including the effects of movable heat insulate layer on temperature profile in furnace and combustion efficiency at low load, are introduced. The results prove that the movable heat insulate layer has obvious effects on improving the temperature profile in furnace and combustion efficiency of coal fired boiler at low load. Figs 8 and refs 6. |
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| Keywords: | boiler heat insulate layer combustion efficiency |
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