| 600MW超临界循环流化床锅炉炉膛气固流场的数值模拟 |
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| 引用本文： | 王超,程乐鸣,周星龙,郑成航,王勤辉,骆仲泱,周棋,聂立.600MW超临界循环流化床锅炉炉膛气固流场的数值模拟[J].中国电机工程学报,2011,31(14). |
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| 作者姓名： | 王超 程乐鸣 周星龙 郑成航 王勤辉 骆仲泱 周棋 聂立 |
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| 作者单位： | 1. 能源清洁利用国家重点实验室(浙江大学),浙江省杭州市,310027
2. 东方锅炉(集团)股份有限公司,四川省自贡市,643001 |
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| 基金项目： | “十一五”国家科技支撑计划重大项目(2006BAA03B02-08,2006BAA03B01-09)~~ |
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| 摘 要： | 利用Fluent软件对某600 MW超临界裤衩腿六分离器循环流化床锅炉炉膛的气固流场进行数值模拟研究.模拟采用双流体模型,分析炉膛颗粒浓度轴向分布,颗粒浓度与轴向速度的径向分布以及六分离器气同流率的不均匀性.结果表明:颗粒浓度的轴向分布呈稀密两相区分布;裤衩腿区内墙有较浓颗粒回流;稀相区颗粒呈双环核分布,中隔墙及前后墙回流明显;中隔墙边壁及间隙区颗粒浓度高于侧墙边壁浓度;悬吊屏屏间隔区域颗粒浓度比悬吊屏外侧区域颗粒浓度低;六分离器中中间位置固相颗粒质量流率高于两边位置,两边位置差别不大.
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| 关 键 词： | 600 MW超临界 循环流化床 锅炉 气固流动特性 数值模拟 |
Numerical Simulation of Gas-solid Hydrodynamics in a 600 MW Supercritical Circulating Fluidized Bed Boiler Furnace |
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| WANG Chao
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CHENG Leming
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ZHOU Xinglong
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ZHENG Chenghang
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WANG Qinhui
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LUO Zhongyang
,
ZHOU Qi
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NIE Li.Numerical Simulation of Gas-solid Hydrodynamics in a 600 MW Supercritical Circulating Fluidized Bed Boiler Furnace[J].Proceedings of the CSEE,2011,31(14). |
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| Authors: | WANG Chao CHENG Leming ZHOU Xinglong ZHENG Chenghang WANG Qinhui LUO Zhongyang ZHOU Qi NIE Li |
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| Affiliation: | WANG Chao1,CHENG Leming1,ZHOU Xinglong1,ZHENG Chenghang1,WANG Qinhui1,LUO Zhongyang1,ZHOU Qi2,NIE Li2(1.State Key Laboratory of Clean Energy Utilization(Zhejiang University),Hangzhou 310027,Zhejiang Province,China,2.Dongfang Boiler Group Co.Ltd.,Zigong 643001,Sichuan Province,China) |
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| Abstract: | The gas-solid flow of a 600 MW supercritical circulating fluidized bed boiler with pant leg and six cyclones was simulated using Fluent software.The two-fluid model(TFM) approach was carried out to represent the axial and radial distribution of particles,as well as the nonuniformity of the six cyclones.Results show that the solids suspension density along the furnace height is a dense-dilute two-phase distribution.A backflow of particles was observed on the interior wall in the pant leg region.There is a do... |
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| Keywords: | 600 MW supercritical circulating fluidized bed(CFB) boiler gas-solid flow characteristic numerical simulation |
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