| 富氧燃烧循环流化床锅炉炉内传热特性 |
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| 引用本文： | 王春波,侯伟军,陈传敏,霍志红.富氧燃烧循环流化床锅炉炉内传热特性[J].中国电机工程学报,2011,31(20). |
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| 作者姓名： | 王春波 侯伟军 陈传敏 霍志红 |
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| 作者单位： | 教育部电站设备状态监测与控制重点实验室(华北电力大学),河北省 保定市,071003 |
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| 基金项目： | 教育部新世纪优秀人材支持计划(08-0770); 华北电力大学回国留学人员基金(200814001)~~ |
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| 摘 要： | 针对富氧燃烧循环流化床锅炉(circulating fluidized bed boiler，CFBB)炉内传热特性进行了研究。考虑气体辐射对传热系数的影响，建立了CFBB富氧燃烧下的传热模型。以一台440t/h循环流化床锅炉为例，通过模型分析了炉内传热情况，并和空气燃烧模式下的传热特性进行比较。进行了氧气浓度在30％、50％、70％气氛下的CFBB炉膛概念性设计。在循环流化床锅炉炉内传热中，灰占主导作用，烟气成分变化对传热系数影响不大。氧气浓度越高，越有必要设置外置换热器来维持炉膛正常运行。
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| 关 键 词： | 循环流化床锅炉 富氧燃烧 传热 模型 |
Heat Transfer Characteristic in Oxy-fuel Circulating Fluidized Bed Boiler |
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| WANG Chunbo
,
HOU Weijun
,
CHEN Chuanmin
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HUO Zhihong.Heat Transfer Characteristic in Oxy-fuel Circulating Fluidized Bed Boiler[J].Proceedings of the CSEE,2011,31(20). |
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| Authors: | WANG Chunbo HOU Weijun CHEN Chuanmin HUO Zhihong |
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| Affiliation: | WANG Chunbo,HOU Weijun,CHEN Chuanmin,HUO Zhihong(Key Lab of Equipment's State Monitoring & Control(North China Electric Power University),Ministry of Education,Baoding 071003,Hebei Province,China) |
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| Abstract: | The heat transfer in oxy-fuel circulating fluidized bed boiler(CFBB) was investigated.A model which considers the influence of gases radiation on heat transfer coefficient was set.Take a 440t/h CFBB for example,the heat transfer in furnace was calculated and the results were compared with air-fired CFBB.The model shows the heat transfer coefficient is not be changed greatly in oxy-fuel combustion,because the heat transfer is dominated by the effect of particles,not depend on gases composition.The concept de... |
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| Keywords: | circulating fluidized bed boiler(CFBB) oxy-fuel combustion heat transfer model |
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