| 破泡结构对洗涤室内气泡特性的影响研究 |
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| 引用本文： | 陈程,徐峰,袁竹林,祁海鹰. 破泡结构对洗涤室内气泡特性的影响研究[J]. 热力发电, 2011, 40(7) |
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| 作者姓名： | 陈程 徐峰 袁竹林 祁海鹰 |
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| 作者单位： | 1. 清华大学热能工程研究所,北京,100084
2. 东南大学能源与环境学院,江苏南京,210096 |
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| 基金项目： | 国家重点基础研究发展规划基金项目(2004CB217707) |
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| 摘 要： | 为优化控制水煤浆气化工艺中洗涤冷却室内的气泡特性,强化洗涤传热、传质效果,采用流体体积模型(VOF)对冷却室内的冷态气液两相流动进行数值模拟,分析了破泡板对气液两相流动、气泡平均湿周和气含率的影响,比较了破泡板平行、交错2种开孔方案的破泡效果。结果表明,增加破泡板能减小液位波动、破碎和扩散气泡,有利于增大气泡湿周;破泡板上交错布孔比平行布孔更有助于均布纵截面平均气含率。
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| 关 键 词： | 洗涤冷却室 气液两相流 破泡板 气泡特性 数值模拟 |
STUDY ON INFLUENCE OF BUBBLE-BREAKING STRUCTURE UPON THE GAS BUBBLE PROPERTIES IN THE SCRUBBING CHAMBER |
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| CHEN Cheng,XU Feng,YUAN Zhulin,QI Haiying. STUDY ON INFLUENCE OF BUBBLE-BREAKING STRUCTURE UPON THE GAS BUBBLE PROPERTIES IN THE SCRUBBING CHAMBER[J]. Thermal Power Generation, 2011, 40(7) |
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| Authors: | CHEN Cheng XU Feng YUAN Zhulin QI Haiying |
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| Affiliation: | CHEN Cheng1,XU Feng2,YUAN Zhulin2,QI Haiying1 1.In stitute of Thermal Energy Engineering,Qinghua University,Beijing 100084,PRC 2.College of Energy and Environment,Southeast China University,Nanjng 210096,Jiangsu Province,PRC |
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| Abstract: | In order to optimize the control of gas bubble properties in the scrubbing-cooling chamber used for gasification of coal-water slurry,strengthening the effectiveness of heat and mass transfer in the scrubbing,a numerical simulation of cold-state gas-liquid two-phase flow in the cooling chamber has been carried out by using the volume of fluid model,the influence of bubble-breaking plate upon the gas-liquid two-phase flow,the average wetted perimeter of gas bubbles,and the void fraction being analysed,and th... |
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| Keywords: | scrubbing and cooling chamber gas-liquid two-phase flow bubble-breaking plate gas bubble property numerical simulation |
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