| 炉顶凸起对6分离器CFB气固流动的影响 |
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| 引用本文： | 周星龙,程乐鸣,王勤辉,聂立,方梦祥,骆仲泱. 炉顶凸起对6分离器CFB气固流动的影响[J]. 工程热物理学报, 2012, 0(3): 517-520 |
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| 作者姓名： | 周星龙 程乐鸣 王勤辉 聂立 方梦祥 骆仲泱 |
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| 作者单位： | 浙江大学能源清洁利用国家重点实验室;东方锅炉(集团)股份有限公司 |
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| 基金项目： | 科技部国际合作项目(No.2011FR60190) |
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| 摘 要： | 本文在6分离器CFB冷态试验台上,研究了炉顶凸起空间对气固流动的影响。利用差压法测量炉膛颗粒浓度轴向分布,采用光纤探针测量不同位置的颗粒浓度和速度的径向分布,通过积料法测量6分离器的颗粒循环流率。通过试验结果的分析,得到炉顶凸起空间内的颗粒运动特性,以及不同凸起高度时的炉膛环核流动特性和颗粒外循环特性。本文的研究对大型多分离器布置CFB锅炉的结构优化设计具有参考意义。
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| 关 键 词： | 循环流化床 凸起 气固流动 |
Effect of Extended Rooms on Gas-Solids Flow in a CFB With 6 Cyclones |
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| ZHOU Xing-Long,CHENG Le-Ming,WANG Qin-Hui,NIE Li,FANG Meng-Xiang,LUO Zhong-Yang. Effect of Extended Rooms on Gas-Solids Flow in a CFB With 6 Cyclones[J]. Journal of Engineering Thermophysics, 2012, 0(3): 517-520 |
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| Authors: | ZHOU Xing-Long CHENG Le-Ming WANG Qin-Hui NIE Li FANG Meng-Xiang LUO Zhong-Yang |
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| Affiliation: | 1 (1.State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China; 2.Dongfang Boiler Group Co.,Ltd.,Chengdu 611731,China) |
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| Abstract: | Experimental study were conducted investigating the effect of extended rooms at the furnace top on gas-solids flow in a CFB cold model with 6 cyclones.The axial distribution of solids concentration was measured by differential pressure method.The radial distribution of solids concentration and particle velocity was measured by a fiber optical probe.The solids circulating rate was measured by particle stacking method.The particle motion characteristics in the extended top,the core-annulus flow structure and the particle circulation characteristics were obtained by the analysis of the results.The results may be applied for optimization of structure design for a large-size CFB boiler with multiple cyclones. |
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| Keywords: | CFB extended room gas-solids flow |
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