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| 600MW墙式燃烧锅炉氮氧化物排放浓度与主要运行因素的多元线性回归研究 | |
| 引用本文： | 沈跃云,高小涛,孟硕.600MW墙式燃烧锅炉氮氧化物排放浓度与主要运行因素的多元线性回归研究[J].热能动力工程,2011,26(6). |
| 作者姓名： | 沈跃云 高小涛 孟硕 |
| 作者单位： | 1. 江苏经贸职业技术学院,江苏南京,211168 2. 江苏省电力试验研究院有限公司,江苏南京,211103 3. 哈尔滨锅炉压力容器检验研究院,黑龙江哈尔滨,150078 |
| 基金项目： | 国家杰出青年科学基金资助项目(50825902); 江苏省自然科学基金攀登基金资助项目(BK2009218) |
| 摘 要： | 以某厂600 MW超临界机组前后墙布置燃烧器锅炉为研究对象,采用现场燃烧调整试验方法,针对锅炉燃烧系统的运行特点和具体条件,进行了氧量、燃烧结构参数(包括一次风速、中心风量、二三次风风量和二次风旋流强度等)、磨煤机运行组合方式、燃尽风量和煤质变化等影响锅炉氮氧化物(NOx)排放特性的试验研究。试验结果表明:锅炉的运行氧量、磨煤机组合投运方式变化、燃尽风量和煤质变化是锅炉NOx排放浓度的主要影响因素,影响NOx排放浓度变化幅度达到14%～18%;而燃烧器结构参数的变化影响较小;通过对主要因素的控制,可以显著降低锅炉NOx排放浓度。在此基础上,应用多元线性回归方法,建立了该600 MW锅炉NOx排放浓度与主要运行因素的回归经验关系式,回归经验关系式的预测值和实测值之间的偏差大多在%10%范围内,该经验关系式可用于锅炉NOx排放浓度的在线运行控制和预测。 |
| 关 键 词： | 超临界锅炉 墙式燃烧系统 低NOx排放 运行因素 多元线性回归 |
Study of a Multivariable Linear Regression of the NOx Emissions Concentration and Main Operating Factors of a 600 MW Wall-type Boiler |
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| SHEN Yue-yun,GAO Xiao-tao,MENG Shuo.Study of a Multivariable Linear Regression of the NOx Emissions Concentration and Main Operating Factors of a 600 MW Wall-type Boiler[J].Journal of Engineering for Thermal Energy and Power,2011,26(6). | |
| Authors: | SHEN Yue-yun GAO Xiao-tao MENG Shuo |
| Affiliation: | SHEN Yue-yun(Jiangsu Economic and Trade College,Nanjing,China,Post Code: 211168),GAO Xiao-tao(Jiangsu Provincial Electric Power Test Research Institute Co.Ltd.,Post Code: 211103),MENG Shuo(Harbin Boiler and Pressure Vessel Inspection Research Institute,Harbin,Post Code:150078) |
| Abstract: | With a 600 MW supercritical boiler unit serving as an object of study,of which the burners are arranged on the front and rear wall,by adopting an on-site combustion adjustment test method and in the light of the operation features and concrete conditions of the combustion system of the boiler,experimentally studied was the influence of various factors on the NOx emissions characteristics of the boiler.They include: oxygen quantity,combustion structural parameters(including primary air speed,central air quan... |
| Keywords: | supercritical boiler wall-type combustion system low NOx emission operating factor multi-variable linear regression |
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