| 周边进水辐流式二沉池出水方式研究 |
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| 引用本文： | 崔彦召,陈小光,柳建设,郭瑞省,徐晓雪,刘宁.周边进水辐流式二沉池出水方式研究[J].中国沼气,2012,30(2):15-19. |
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| 作者姓名： | 崔彦召 陈小光 柳建设 郭瑞省 徐晓雪 刘宁 |
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| 作者单位： | 1. 东华大学环境科学与工程学院,上海,201620
2. 中国铁路通信信号集团公司北京工程分公司,北京,100070 |
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| 基金项目： | 中央高校专项资金自由探索项目 |
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| 摘 要： | 通过计算流体力学FLUENT6.3.26软件,分别对周边进水辐流式二沉池三种出水方式(中间出水、周边出水和周边和中间同时出水)的沉淀区流态进行了数值模拟,系统研究了三种出水方式沉淀区的速度分布、漩涡形态、驻流区和慢流区的体积分数等。结果表明:为有利周边进水辐流式二沉池污泥沉降,三种出水方式中,周边和中间同时出水最优,周边出水其次,中间出水最差。
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| 关 键 词： | 辐流式二沉池 流态 数值模拟 周边出水 中间出水 |
Research on Outflow Way of the Secondary Clarifier with Surrounding Radial Inflow |
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| CUI Yan-zhao
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CHEN Xiao-guang
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LIU Jian-she
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GUO Rui-sheng
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XU Xiao-xue
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LIU Ning.Research on Outflow Way of the Secondary Clarifier with Surrounding Radial Inflow[J].China Biogas,2012,30(2):15-19. |
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| Authors: | CUI Yan-zhao CHEN Xiao-guang LIU Jian-she GUO Rui-sheng XU Xiao-xue LIU Ning |
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| Institution: | 1( 1. Institute of Environmental Science and Engineering,Donghua University,Shanghai 201620,China;2.China Railway Signal & Communication Corp.Beijing Engineering Branch,Beijing 100070,China) |
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| Abstract: | The flow patterns of secondary clarifier with surrounding radial inflow were studied.The outflow from centre,surrounding,and both centre and surrounding,were simulated by Fluent6.3.26 software,respectively.The speed distribution,vortex,volume fraction of stationary and slow flow,were investigated.The results showed that,as for the sludge settlement,simultaneous outflow from both centre and surrounding was the best way of outflow,the surrounding outflow next,and outflow from centre was the worst. |
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| Keywords: | circular secondary clarifier flow regime numerical simulation surrounding outflow centre outflow |
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