某电厂锅炉燃烧器及B层炉膛空气动力场特性鉴定
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摘要
通过对新建电厂1号锅炉炉内的一次风进行调平,然后又对炉内一次风量和炉内二次风量进行相应标定,最终在B层炉膛内做了冷态空气动力场特性鉴定试验。试验表明:该电厂1号锅炉燃烧器设计及安装合理,炉膛实际切圆中心位置正确、稳定;炉膛火焰充满度较好,且气流没有明显的刷壁现象;通过调节一次风、二次风(辅助风)、周界风及一次风/二次风比例在合适的范围内,该炉膛拥有良好的空气动力工况。
Through leveling of primary air, calibrating the primary air volume and secondary air volume of new thermal power plant No.1 boiler, the velocity distribution and jet decay in the burner area is analyzed. It showed that No. 1 boiler burner design and installation was reasonable. The actual cutting center position of furnace was correct and stable.Furnace flame fullness was good, and the airflow was not obvious brush wall phenomenon. By adjusting the primary air,the secondary air, the perimeter air and the ratio of primary air/secondary air within the proper range, the furnace had good aerodynamic conditions.
Through leveling of primary air, calibrating the primary air volume and secondary air volume of new thermal power plant No.1 boiler, the velocity distribution and jet decay in the burner area is analyzed. It showed that No. 1 boiler burner design and installation was reasonable. The actual cutting center position of furnace was correct and stable.Furnace flame fullness was good, and the airflow was not obvious brush wall phenomenon. By adjusting the primary air,the secondary air, the perimeter air and the ratio of primary air/secondary air within the proper range, the furnace had good aerodynamic conditions.
引文
[1]郑泽民.锅炉燃烧室空气动力工况的调整[J].热力发电, 1984,(4):2.
[2] Arafat A B, Naser J. Computational modelling of co-firing of biomass with coal under oxy-fuel condition in a small scale furnace[J]. Fuel,2015, 143:455~466.
[3] Ling Z Q, Zeng X Y, Ren T, et al. Establishing a low-NOxand high-burnout performance in a large-scale, deep-air-staging laboratory furnace fired by a heavy-oil swirl burner[J]. Applied Thermal Engineering, 2015, 79:117~123.
[4] Zeng L Y, Li Z Q, Zhao G B, et al. The influence of swirl burner structure on the gas/particle flow characteristics[J]. Energy, 2011, 36:6184~6194.
[5] Zhou H, Yang Y, Liu H Z, et al. Numerical simulation of the combustion characteristics of a low NOx swirl burner:Influence of the primary air pipe[J]. Fuel, 2014,130:168~176.
[6]王玲玲.印尼煤掺混烟煤的热重燃烧反应动力学特性研究[J].热力发电, 2009.
[7]邹磊,岳俊峰. 1000 MW超临界锅炉低NOx燃烧技术改造及性能优化试验[J].中国电力, 2014, 47(10):92~97.
[8]石岩,陈健,郑文广. 300 MW等级机组低NOx燃烧技术改造研究分析[J].发电与空调, 2012, 33(6):21~23.
[9]刘江鹏,卢志权.锅炉低NOx燃烧技术改造[J].自动化应用, 2014,(5):15~16.
[10]郭宏生,徐通模. WG300MW机组锅炉炉膛空气动力工况[J].中国电力, 1994, 27(1):22~27.
[11]张忠义,沙晓农.石洞口电厂国产1025 t/h锅炉炉膛模化试验[J].动力工程, 1985,(2):1~7.
[12]张忠义.切向燃烧四角布置炉膛冷热态空气动力场试验的探讨[J].动力工程, 1981,(1):7~15.
[13]田正渠.多层式切向燃烧器空气动力场模化试验研究[J].技术交流, 1975,(2):1~12.
[14]孙科,马洪涛,张军威.2023 t/h亚临界四角切圆锅炉冷态空气动力场的试验研究[J].电站系统工程, 2010, 26(1):5~7.
[15]温智勇,廖宏楷.锅炉低NOx排放改造及试验结果分析[J].电力环境保护, 2009,(4):19~21.
[16]于杨,郭健捷.锅炉冷态空气动力场试验中的注意事项[J].电站系统工程, 2013,(1):79.
[17]林宗虎.锅炉测试[M].中国计量出版社, 1996.
[18]邵翊航.大化项目冷态空气动力场试验报告[Z]. 2012.
[19]蔡桃,段耀辉,乔晓磊,等.过量空气系数对四角切圆燃烧锅炉特性影响的数值模拟[J].电站系统工程, 2013, 29(2):17~23.
[20]范贤振,郭烈锦. 200 MW四角切向燃烧煤粉炉炉内过程的数值模拟[J].西安交通大学学报, 2002, 36(3):242~245.
[2] Arafat A B, Naser J. Computational modelling of co-firing of biomass with coal under oxy-fuel condition in a small scale furnace[J]. Fuel,2015, 143:455~466.
[3] Ling Z Q, Zeng X Y, Ren T, et al. Establishing a low-NOxand high-burnout performance in a large-scale, deep-air-staging laboratory furnace fired by a heavy-oil swirl burner[J]. Applied Thermal Engineering, 2015, 79:117~123.
[4] Zeng L Y, Li Z Q, Zhao G B, et al. The influence of swirl burner structure on the gas/particle flow characteristics[J]. Energy, 2011, 36:6184~6194.
[5] Zhou H, Yang Y, Liu H Z, et al. Numerical simulation of the combustion characteristics of a low NOx swirl burner:Influence of the primary air pipe[J]. Fuel, 2014,130:168~176.
[6]王玲玲.印尼煤掺混烟煤的热重燃烧反应动力学特性研究[J].热力发电, 2009.
[7]邹磊,岳俊峰. 1000 MW超临界锅炉低NOx燃烧技术改造及性能优化试验[J].中国电力, 2014, 47(10):92~97.
[8]石岩,陈健,郑文广. 300 MW等级机组低NOx燃烧技术改造研究分析[J].发电与空调, 2012, 33(6):21~23.
[9]刘江鹏,卢志权.锅炉低NOx燃烧技术改造[J].自动化应用, 2014,(5):15~16.
[10]郭宏生,徐通模. WG300MW机组锅炉炉膛空气动力工况[J].中国电力, 1994, 27(1):22~27.
[11]张忠义,沙晓农.石洞口电厂国产1025 t/h锅炉炉膛模化试验[J].动力工程, 1985,(2):1~7.
[12]张忠义.切向燃烧四角布置炉膛冷热态空气动力场试验的探讨[J].动力工程, 1981,(1):7~15.
[13]田正渠.多层式切向燃烧器空气动力场模化试验研究[J].技术交流, 1975,(2):1~12.
[14]孙科,马洪涛,张军威.2023 t/h亚临界四角切圆锅炉冷态空气动力场的试验研究[J].电站系统工程, 2010, 26(1):5~7.
[15]温智勇,廖宏楷.锅炉低NOx排放改造及试验结果分析[J].电力环境保护, 2009,(4):19~21.
[16]于杨,郭健捷.锅炉冷态空气动力场试验中的注意事项[J].电站系统工程, 2013,(1):79.
[17]林宗虎.锅炉测试[M].中国计量出版社, 1996.
[18]邵翊航.大化项目冷态空气动力场试验报告[Z]. 2012.
[19]蔡桃,段耀辉,乔晓磊,等.过量空气系数对四角切圆燃烧锅炉特性影响的数值模拟[J].电站系统工程, 2013, 29(2):17~23.
[20]范贤振,郭烈锦. 200 MW四角切向燃烧煤粉炉炉内过程的数值模拟[J].西安交通大学学报, 2002, 36(3):242~245.