| 旋流型O_2/CO_2煤粉燃烧器的流动及燃烧试验研究 |
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| 引用本文： | 丘纪华,邹春,刘敬樟,李刚,李曼丽,郑楚光.旋流型O_2/CO_2煤粉燃烧器的流动及燃烧试验研究[J].中国电机工程学报,2010(17). |
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| 作者姓名： | 丘纪华 邹春 刘敬樟 李刚 李曼丽 郑楚光 |
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| 作者单位： | 煤燃烧国家重点实验室(华中科技大学); |
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| 基金项目： | 国家高技术研究发展计划项目(863计划)(2009AA05Z315); 国家重点基础研究发展规划基金项目(2006CB705806)~~ |
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| 摘 要： | O2/CO2循环燃烧技术可以提高烟气中的CO2浓度(90%以上),被认为是一种效率高、风险低的CO2捕集方式,易于在现有火力发电锅炉技术的基础上进行应用或改造。对旋流型O2/CO2煤粉燃烧器进行了冷态流场试验,并在0.3MW的热态试验台上进行了该燃烧器的空气气氛和O2/CO2气氛下的煤粉燃烧实验。研究结果表明,沿该燃烧器出口圆周上的速度分布比较均匀,在流场中心有回流区形成,回流区的相对长度L=1.38～1.70,相对宽度为B=0.39～0.53,扩张角β=36°～50°。该燃烧器形成的流场能够较好地满足煤粉在空气条件、O2/CO2气氛条件下着火燃烧的需要。煤粉在O2/CO2气氛,O2浓度为23%时,其着火性能优于常规空气,且燃烧后的烟气中CO2浓度可以达到90%以上。
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| 关 键 词： | 煤粉燃烧器 O2/CO2循环燃烧 旋流 |
Experimental Study of O_2/CO_2 Swirled Burner of Pulverized Coal on Flow Field and Combustion |
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| QIU Ji-hua,ZOU Chun,LIU Jing-zhang,LI Gang,LI Man-li,ZHENG Chu-guang ,Wuhan ,Hubei Provinec,China.Experimental Study of O_2/CO_2 Swirled Burner of Pulverized Coal on Flow Field and Combustion[J].Proceedings of the CSEE,2010(17). |
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| Authors: | QIU Ji-hua ZOU Chun LIU Jing-zhang LI Gang LI Man-li ZHENG Chu-guang Wuhan Hubei Provinec China |
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| Affiliation: | QIU Ji-hua,ZOU Chun,LIU Jing-zhang,LI Gang,LI Man-li,ZHENG Chu-guang (State Key Laboratory of Coal Combustion (Huanzhong University of Science and Technology),Wuhan 430074,Hubei Provinec,China) |
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| Abstract: | O2/CO2 recycled combustion can produce higher CO2 concentration in flue gas (up 90% by volume),this approach is regarded as an efficient and low-risk for CO2 capture method,and can be convenient applied and retrofitted for today power plant boilers.The O2/CO2 swirled burner of pulverized coal was studied at flow field and pulverized coal combustion in air and in O2/CO2 at 0.3 MW down-fired combustor.The flow field showed that the velosity along circle of the burner be uniform almostly,and there is a reflow ... |
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| Keywords: | pulverized coal burner O2/CO2 recycled combustion swirled flow |
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