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	600MWe超临界循环流化床锅炉的炉膛水冷壁传热
	李燕 ; 李文凯 ; 吴玉新 ; 杨海瑞 ; 聂立 ; 霍锁善 ; LI Yan ; LI Wenkai ; WU Yuxin ; YANG Hairui ; NIE Li ; HUO Suoshan
	2010-06-08 ; 2010-06-08
关键词	超临界锅炉 循环流化床 炉膛传热 热流密度 热偏差 wing wall supercritical circulating fluidized bed boiler heat flux distribution TK229.6
其他题名	Heat transfer in a 600 MWe supercritical circulating fluidized bed boiler with water cooled wall panels
中文摘要	对带隔墙的600MWe超临界循环流化床锅炉的炉膛水冷壁传热及热流密度分布进行了模型研究。炉膛水冷壁为光管水冷壁。基于构建的循环流化床锅炉传热模型,得到了锅炉最大连续工况、75%及50%汽轮机热耗验收工况下炉膛局部物料浓度、热流密度及传热系数的分布情况。结果表明,炉膛局部物料浓度、热流密度及传热系数沿高度的增加均逐渐降低,并在一定高度上逐渐均匀,随着负荷的降低,趋于均匀的高度有所下降。侧墙与隔墙局部物料浓度等参数沿周向的分布呈现角部高、中心低的分布趋势。由于隔墙的存在,前墙与侧墙的热流密度分布不同。整体上,炉膛出口处热流密度偏差最大;随负荷降低,传热系数周向偏差减小。; The water wall heat transfer and heat flux distribution in a 600-MWe supercritical circulating fluidized bed furnace were investigated. The water wall has a layer of smooth tubes on the inner surface. The solid suspension density, the heat flux, and the heat transfer coefficient distribution in the furnace were predicted at the maximum boiler continuous rating and at 75% and 50% of the turbine heat acceptance. The results show that the heat flux, the heat transfer coefficient, and suspension density all decrease with increasing distance to the distributor up to a critical height while decreases with decreasing load. The horizontal heat flux distribution is related to the horizontal position on the water wall and the boiler load with the highest heat fluxes is in the corner. Hence, the heat flux distribution on the front wall is quite different from that on the side wall due to the water cooled panel. The heat flux is highest at the top of the tube.; 国家“十一五”科技支撑计划资助项目(2006BAA03B02)
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/50571]
专题	清华大学
推荐引用方式 GB/T 7714	李燕,李文凯,吴玉新,等. 600MWe超临界循环流化床锅炉的炉膛水冷壁传热[J],2010, 2010.
APA	李燕.,李文凯.,吴玉新.,杨海瑞.,聂立.,...&HUO Suoshan.(2010).600MWe超临界循环流化床锅炉的炉膛水冷壁传热..
MLA	李燕,et al."600MWe超临界循环流化床锅炉的炉膛水冷壁传热".(2010).

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