| 径向浓淡旋流燃烧器NOx排放和燃尽率的试验研究 |
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| 引用本文： | 薛山,惠世恩,周屈兰,徐通模.径向浓淡旋流燃烧器NOx排放和燃尽率的试验研究[J].动力工程,2011,31(1). |
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| 作者姓名： | 薛山 惠世恩 周屈兰 徐通模 |
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| 作者单位： | 1. 西安工业大学建筑工程学院,西安,710032
2. 西安交通大学能源与动力工程学院,西安,710049 |
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| 摘 要： | 在设计热功率为1 MW的热态模化实验台上,研究了带有燃尽风的径向浓淡双调风旋流燃烧器的运行特点,得到燃尽风布置的相对位置、一次风率、内二次风率、外二次风率以及二次风旋流强度对NOx生成和飞灰含碳量的影响.结果表明:旋流对冲的煤粉浓淡燃烧配合采用燃尽风(OFA)空气分级燃烧技术,对降低NOx的生成和减少飞灰含碳量非常有益;只有合理地设计和布置OFA燃烧器,才能在降低NOx生成量的同时,尽量减少飞灰含碳量;增大一次风率时,NOx的生成量先增加后减少,而飞灰含碳量先减少后增加;增加内、外二次风的旋流强度,NOx的生成量不断提高,而飞灰含碳量则呈现降低趋势.
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| 关 键 词： | 浓淡燃烧 旋流燃烧器 NOx生成量 飞灰含碳量 燃尽率 |
Experimental Study on NO_x Emission and Coal Burnout of a Radial Biased Swirl Burner |
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| XUE Shan
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HUI Shi-en
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ZHOU Qu-lan
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XU Tong-mo.Experimental Study on NO_x Emission and Coal Burnout of a Radial Biased Swirl Burner[J].Power Engineering,2011,31(1). |
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| Authors: | XUE Shan HUI Shi-en ZHOU Qu-lan XU Tong-mo |
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| Affiliation: | XUE Shan~1,HUI Shi-en~2,ZHOU Qu-lan~2,XU Tong-mo~2(1.School of Architecture Engineering,Xi'an Technological University,Xi'an 710032,China,2.School of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China) |
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| Abstract: | The operational features of the radial biased dual air control swirl burner with over fired air(OFA) were studied on a hot modeling test rig with design thermal power of 1 MW.The effects of relative position of OFA,primary air ratio,inner secondary air ratio,outer secondary air ratio and vortex intensity of secondary air on NO_x formation and carbon content in fly ash were obtained.Results show that it is beneficial to use swirl cross and biased firing combined with OFA stage combustion technology for reduc... |
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| Keywords: | biased combustion swirl burner NO_x formation carbon content in fly ash burnout |
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