欢迎访问过程工程学报, 今天是

过程工程学报 ›› 2017, Vol. 17 ›› Issue (3): 477-483.DOI: 10.12034/j.issn.1009-606X.216321

• 流动与传递 • 上一篇    下一篇

组合式旋流器处理污水的数值分析

陈启东1,孙越高2   

  1. 1. 苏州大学机电工程学院，江苏 苏州 215000;  2. 常熟理工学院机械工程学院，江苏 常熟 215500
  • 收稿日期:2016-10-12 修回日期:2016-12-04 出版日期:2017-06-20 发布日期:2017-06-14
  • 通讯作者: 陈启东 896886562@qq.com
  • 基金资助:
    国家高技术研究发展计划（863计划）课题实施方案 污泥掺混制备生物质燃料技术装备及应用

Numerical Analysis of the Combined Type Hydrocyclone in Wastewater Treatment

Yuegao SUN1,  Qidong CHEN2*   

  1. 1. School of Mechanical and Electrical Engineering, Soochow University, Suzhou, Jiangsu 215000, China;
    2. School of Mechanical Engineering, Changshu Institute of Technology, Changshu, Jiangsu 215500, China
  • Received:2016-10-12 Revised:2016-12-04 Online:2017-06-20 Published:2017-06-14

PDF

摘要： 利用RNG k-e模型计算流量分配器，确定了组合式旋流分离器的结构形式；利用雷诺应力模型(RSM)对入口切向角度不同的旋流分离器内部流场进行了分析；利用离散相模型(DPM)计算了其分离效率；利用所设计的组合式旋流分离器进行污泥浓缩实验，确定了流量分配器的结构形式，得到了斜切单入口式旋流分离器入口与分配器环形管外圆周面的最佳夹角为5°，该分离器可将污水的含固率从2.7%提升至7.1%.利用RNG k-e模型计算流量分配器，确定了组合式旋流分离器的结构形式；利用雷诺应力模型(RSM)对入口切向角度不同的旋流分离器内部流场进行了分析；利用离散相模型(DPM)计算了其分离效率；利用所设计的组合式旋流分离器进行污泥浓缩实验，确定了流量分配器的结构形式，得到了斜切单入口式旋流分离器入口与分配器环形管外圆周面的最佳夹角为5°，该分离器可将污水的含固率从2.7%提升至7.1%.

关键词: 流量分配器, 复合型旋流分离器, 雷诺应力模型, 分离效率, 含固率

Abstract: The structure of the combined type hydrocyclone was determined, by using RNG k-e model for calculation of flow distributor. By utilizing Reynolds Stress Model (RSM) and Discrete Phase Model (DPM), the internal flow fields of the hydrocyclone with different tangents of inlet channels were analyzed and the separation efficiency of the hydrocyclone was calculated. Sludge thickening experiments were carried out using the designed combined type hydrocyclone. Determining the structure of flow distributor; getting the optimal angle between beveling hydrocyclone with single inlet channel and external surface of ring pipes of distributor, the best beveling angle of inlet channel of beveling hydrocyclone with single inlet channel is 5o. The combined type hydrocyclone can increase the solid content of sewage from 2.7% to 7.1%.

Key words: flow distributor, compound hydrocyclone, Reynolds Stress Model, separation efficiency, solid content