| 循环流化床锅炉炉膛的传热计算 |
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| 引用本文： | 张瑞卿,杨海瑞,吕俊复,张强,高胜斌,蔡世林.循环流化床锅炉炉膛的传热计算[J].动力工程,2011,31(4). |
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| 作者姓名： | 张瑞卿 杨海瑞 吕俊复 张强 高胜斌 蔡世林 |
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| 作者单位： | 1. 清华大学热能工程系,热科学与动力工程教育部重点实验室,北京100084
2. 普华煤燃烧技术中心,上海,200240 |
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| 摘 要： | 结合以往对循环流化床(CFB)锅炉炉膛传热系数的研究成果,建立了CFB锅炉炉膛传热系数的计算模型,并对辐射传热系数和对流传热系数的计算分别进行了相应的分析.对某CFB锅炉在100%负荷条件下的炉膛传热系数进行了计算,并对影响该传热系数的主要因素进行了分析,包括受热面结构尺寸、床层温度Tb、工质温度Tf、工质侧传热系数af以及壁面黑度εw等.结果表明:该模型能够合理地反映出以上因素对CFB锅炉炉膛传热系数的影响.
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| 关 键 词： | 循环流化床锅炉 炉膛受热面 传热系数 传热模型 |
Calculation of Heat Transfer in Furnace of a Circulating Fluidized Bed Boiler |
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| ZHANG Rui-qing
,
YANG Hai-rui
,
L Jun-fu
,
ZHANG Qiang
,
GAO Sheng-bin
,
CAI Shi-lin.Calculation of Heat Transfer in Furnace of a Circulating Fluidized Bed Boiler[J].Power Engineering,2011,31(4). |
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| Authors: | ZHANG Rui-qing YANG Hai-rui L Jun-fu ZHANG Qiang GAO Sheng-bin CAI Shi-lin |
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| Affiliation: | ZHANG Rui-qing
,
YANG Hai-rui
,
L(U) Jun-fu
,
ZHANG Qiang
,
GAO Sheng-bin
,
CAI Shi-lin |
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| Abstract: | Based on previous research achievements on heat-transfer coefficient distribution in furnace of CFB boilers,a model was built for calculation of the heat-transfer coefficient,while the calculation analyzed respectively on both radiative and corrective heat transfer.The model was used to calculate the heattransfer coefficient in furnace of a certain CFB boiler under 100% load condition,and factors influencing the coefficient were analyzed simultaneously,including the structural dimension of heating surface,b... |
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| Keywords: | circulating fluidized bed boiler heating surface of boiler furnace heat-transfer coefficient heat-transfer model |
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