| 砂土物料真空吸送分离系统的设计与数值模拟 |
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| 引用本文： | 杨丹,秋实,曹钧,陈思林,陈涛,杨欢.砂土物料真空吸送分离系统的设计与数值模拟[J].真空,2011,48(4). |
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| 作者姓名： | 杨丹 秋实 曹钧 陈思林 陈涛 杨欢 |
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| 作者单位： | 西北核技术研究所,陕西西安,710024 |
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| 摘 要： | 针对粒径1mm～10mm的砂土物料,设计了一套真空吸送装置。在真空吸送装置中,分离系统用于将物料颗粒从气固两相流中分离出来。介绍了砂土物料真空吸送分离系统的设计原则,运用计算流体动力学软件对气固两相流的运动状态进行了模拟,获得了分离系统内气流压力等值线图和流迹,计算了分离系统的压力损失。设计中,针对不同粒径的球体砂土颗粒,采用离散相模型与拉格朗日方法跟踪颗粒的运动轨迹,优化了分离系统结构、提高了砂土的分离效率。
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| 关 键 词： | 真空吸送 气固分离 压力损失 颗粒运动轨迹 |
Design and numerical simulation of vacuum sucking/separating system for sand/soil conveying |
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| YANG Dan,QIU Shi,CAO Jun,CHEN Si-lin,CHEN Tao,YANG Huan.Design and numerical simulation of vacuum sucking/separating system for sand/soil conveying[J].Vacuum,2011,48(4). |
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| Authors: | YANG Dan QIU Shi CAO Jun CHEN Si-lin CHEN Tao YANG Huan |
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| Affiliation: | YANG Dan,QIU Shi,CAO Jun,CHEN Si-lin,CHEN Tao,YANG Huan(The North-West Institute of Nuclear Technology,Xi'an 710024,China) |
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| Abstract: | A vacuum sucking/separating system was designed for sand/soil conveying,where the particle size of sand/soil is 1~10mm.The vacuum sucking/separating system is used to separate the sand/soil particles from the gas-solid two-phase flow.With the conceptual design of the vacuum system described,the hydrodynamic computation software was applied to the simulation of the motion of two-phase flow so as to get the airflow pressure isolines and flow path in the system,and the pressure loss was also calculated.In the ... |
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| Keywords: | vacuum sucking/separating gas-solid separation pressure loss particle trajectory |
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