摘要
利用RNG k-ε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%.
The structure of the combined type hydrocyclone was determined, by using RNG k-ε 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 5°. The combined type hydrocyclone can increase the solid content of sewage from 2.7% to 7.1%.
出处
《过程工程学报》
CAS
CSCD
北大核心
2017年第3期477-483,共7页
The Chinese Journal of Process Engineering
基金
国家高技术研究发展计划(863)计划资助项目(编号:2012AA063506)
关键词
流量分配器
组合式旋流分离器
雷诺应力模型
分离效率
含固率
flow distributor
combined type hydrocyclone
Reynolds stress model
separation efficiency
solid content
