全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

中国动力煤特性对绝热燃烧温度的影响

, PP. 15-20

Keywords: 中国动力煤,特性参数,绝热燃烧温度,煤粉锅炉,热力计算

Full-Text   Cite this paper   Add to My Lib

Abstract:

动力煤的绝热燃烧温度ta是煤粉锅炉热力计算中最重要的参数之一。绝热燃烧温度与炉膛出口烟气温度之差(ta-t'f')决定了炉膛受热面(包括水冷壁和屏式过热器)的吸热量。文中计算了158种中国动力煤的绝热燃烧温度并且讨论了动力煤的特性参数对绝热燃烧温度的影响。计算结果表明:随着低位发热量数值的提高(Qnet,ar=10.84~29.49MJ/kg)),中国动力煤的绝热燃烧温度从1458℃提高到1959℃,理论绝热燃烧温度ta0大约比绝热燃烧温度ta高254~352℃。低位发热量数值对绝热燃烧温度有近似线性的正面影响。对于中国动力煤而言,w(Car)是影响Qnet,ar的最重要正面参数,w(Mar)是影响Qnet,ar的最重要负面参数。此外,由煤的w(Vdaf)决定的过量空气系数对ta具有非线性的负面影响。

References

[1]  陈瑶姬,周志军,周宁,等.贵州无烟煤的燃烧动力学特性和NOx生成机制试验研究[J].中国电机工程学报,2011,31(20):52-58.Chen Yaoji,Zhou Zhijun,Zhou Ning,et al.Combustion kinetics characteristics and experimental study on NOx formation mechanism of Guizhou anthracite[J].Proceedings of the CSEE,2011,31(20):52-58(in Chinese).
[2]  段伦博,赵长遂,周骛,等.CO2气氛对烟煤热解过程的影响[J].中国电机工程学报,2010,30(2):62-66.Duan Lunbo,Zhao Changsui,Zhou Wu,et al.Effect of CO2 atmosphere on the pyrolysis process of bituminous coal[J].Processings of the CSEE,2010,30(2):62-66(in Chinese).
[3]  段伦博,赵长遂,李英杰,等.O2/CO2气氛下烟煤燃烧过程中S的析出特性[J].中国电机工程学报,2008,28(35):10-13.Duan Lunbo,Zhao Changsui,LI Yingjie,et al.Investigation on sulfur release from bituminous coal combustion in O2/CO2 atmosphere[J].Proceedings of the CSEE,2008,28(35):10-13(in Chinese).
[4]  靖剑平,李争起,陈智超,等.中心给粉燃烧器在燃用烟煤1025t/h锅炉上的应用[J].中国电机工程学报,2008,28(2):1-7.Jing Jianping,Li Zhengqi,Chen Zhichao,et al.Application of centrally fuel rich swirl burner on a 1025t/h bituminous coal fired boiler[J].Proceedings of the CSEE,2008,28(2):1-7(in Chinese).
[5]  赵卫东,刘建忠,周俊虎,等.褐煤等温脱水热重分析[J].中国电机工程学报,2009,29(14):74-79.Zhao Weidong,Liu Jianzhong,Zhou Junhu,et al.Investigation on the isothermal dewatering of brown coal by thermobalance[J].Proceedings of the CSEE,2009,29(14):74-79(in Chinese).
[6]  秦明,吴少华,孙绍增,等.六角切圆燃烧褐煤煤粉锅炉低NOx燃烧技术研究[J].中国电机工程学报,2005,25(1):158-162.Qin Ming,Wu Shaohua,Sun Shaozeng,et al.Low NOx emission study for six point tangential burning of pcboiler firing lignite coal[J].Proceedings of the CSEE,2005,25(1):158-162(in Chinese).
[7]  陈红,昌树文,李明亮,等.300MW循环流化床锅炉燃用褐煤的试验研究[J].锅炉制造.2009(1):1-4.Chen Hong,Chang Shuwen,Li Mingliang,et al.Experimental study of burning brown coal in a 300MW CFB Boiler[J].Boiler Manufacturing,2009(1):1-4(in Chinese).
[8]  陈怀珍,顾大钊,薛宁,等.神华煤与其它烟煤掺烧的结渣性研究[J].热力发电,2007,36(10):23-26.Chen Huaizhen,Gu Dazho,Xue Ning,et al.Study on slagging behavior of Shenhua coal mixedly burning with other bituminous coals[J].Thermal Power Generation,2007,36(10):23-26(in Chinese).
[9]  陈力哲,郭爱国,刁友锋,等.410t/h贫煤锅炉灭火原因分析及解决措施[J].电站系统工程,2008,24(3):21-24.Chen Lizhe,Guo Aiguo,Diao Youfeng,et al.Analysis and solving measurers of lean coal 410t/h boiler extinguishing[J].Power System Engineering,2008,24(3):21-24(in Chinese).
[10]  陈卓卫,曾庭华.连州发电厂440t/h燃无烟煤循环流化床锅炉的设计要点[J].洁净煤技术,2003,9(2):46-48.Chen Zhouwei,Zeng Tinghua.Design Essential of 440t/h anthracite-fired circulating fluidized bed boiler in Lian-zhou power plant[J].Clean Coal Technology,2003,9(2):46-48(in Chinese).
[11]  窦文宇,孔德娟,周广杰,等.神木烟煤燃烧时NOx生成特性的试验研究[J].动力工程,2009,29(11):1061-1066.Dou Wenyu,Kong Dejuan,Zhou Guangjie,et al.NOx formation characteristics during combustion of shenmu bituminous coal[J].Journal of Power Engineering,2009,29(11):1061-1066(in Chinese).
[12]  黄家瑶.无烟煤特性和无烟煤链条炉的燃烧调整与操作[J].工业锅炉,2007(4):12-8.Huang Jiayao.Character of the anthracite and combustion adjustment and the operation of the chain boiler[J].Industrial Boiler,2007(4):12-8(in Chinese).
[13]  樊泉桂,阎维平,闫顺林.锅炉原理[M].1版.北京:中国电力出版社,2008:36-57.Fan Quangui,Yan Weiping,Yan Shunlin.Principle of utility boiler[M].Beijing:China Electric Power Press,2008:36-57(in Chinese).
[14]  林宗虎,张永照.锅炉手册[M].1版.北京:机械工业出版社,1989:31-40.Lin Zonghu,Zhang Yongzhao.Boiler handbook[M].Beijing:China Machine Press,1989:31-40(in Chinese).
[15]  Kurosea R,Ikedaa M,Makino H,et al.Pulverized coal combustion characteristics of high-fuel-ratio coals[J].Fuel,2004,83(13):1777-1785.
[16]  Chaggera H K,Jonesa J M,Pourkashaniana M,et al.Emission of volatile organic compounds from coal combustion[J].Fuel,1999,78(13):1527-1538.
[17]  Kolev D,Kolev N.Performance characteristics of a new type of lamellar heat exchanger for the utilization of flue gas heat[J].Applied Thermal Engineering,2002,22(17):1919-1930.
[18]  Vuthaluru H B,Brooke R J,Zhang D K.,et al. Effects of moisture and coal blending on hardgrove grindability index of Western Australian coal[J].Fuel Processing Technology,2003,81(1):67-76.
[19]  Coskun C,Oktay Z,Ilten N.A new approach for simplifying the calculation of flue gas specific heat and specific exergy value depending on fuel composition[J].Energy,2009,34(11):1898-1902.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133