| 管道中亚微米颗粒热泳脱除技术的研究 |
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| 引用本文： | 周涛,杨瑞昌,胡雨,赵磊,王世超,刘若雷,傅涛.管道中亚微米颗粒热泳脱除技术的研究[J].动力工程,2009,29(6). |
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| 作者姓名： | 周涛 杨瑞昌 胡雨 赵磊 王世超 刘若雷 傅涛 |
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| 作者单位： | 周涛,胡雨,王世超,傅涛,ZHOU Tao,HU Yu,WANG Shi-chao,FU Tao(华北电力大学核热工安全和标准化所,北京,102206);杨瑞昌,赵磊,刘若雷,YANG Rui-chang,ZHAO Lei,LIU Ruo-lei(清华大学,热能工程系,北京,100084)
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| 基金项目： | 国家重点基础研究发展规划(973计划)，北京市自然科学基金，高等学校博士学科点专项科研基金 |
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| 摘 要： | 通过对设计的实验系统进行测量,得到了亚微米颗粒热泳沉积效率的计算公式.由实验验证:相对于长管,短管可充分利用速度温度正在发展流,从而获得更高的热泳沉积效率.利用逐步递进原则,设计了1种将短管作为热泳除尘段,并和过渡段交替连接的除尘装置.结果表明:在采用8段热泳段的情况下,总除尘率可达到约83.24%.说明利用该原则能设计出可行的脱除亚微米颗粒的除尘设备.
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| 关 键 词： | 除尘设备 热泳 沉积效率 短管 亚微米颗粒 |
Thermophoretic Deposition of Sub-micro Particles in Tube Flows |
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| ZHOU Tao,YANG Rui-chang,HU Yu,ZHAO Lei,WANG Shi-chao,LIU Ruo-lei,FU Tao.Thermophoretic Deposition of Sub-micro Particles in Tube Flows[J].Power Engineering,2009,29(6). |
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| Authors: | ZHOU Tao YANG Rui-chang HU Yu ZHAO Lei WANG Shi-chao LIU Ruo-lei FU Tao |
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| Affiliation: | 1.School of Nuclear Science and Engineering;North China Electric Power University;Beijing 102206;China;2.Department of Thermal Engineering;Tsinghua University;Beijing 100084;China |
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| Abstract: | From measurements of a designed experimental system,calculation formula for thermophoretic deposition efficiency of sub-micro particles was derived. Experimental results demonstrate that compared with long tube,short tube makes good use of simultaneous developing flow of velocity and temperature,and therefore produces higher deposition efficiency.Based on step-by-step principles,a precipitator,taking short tube as its thermophoretic deposition section,was designed,in which the thermophoretic deposition and ... |
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| Keywords: | dust precipitator thermophoresis deposition efficiency short tube sub-micro particle |
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