摘要
为解决疏浚泥含沙量过大,应用FLUENT软件建立了水力旋流器内两相湍流三维模型,基于疏浚泥的物性特点,研究了水力旋流器圆柱段长度对分离效率的影响,推导出适用于疏浚泥分离用旋流器的能量损失公式。提出了一种完全长柱型旋流器,其分离效率和耗能都优于常规长锥型旋流器。在保证较高分离效率的情况下,调整入口流速,得到了入口流速、分离效率和能量消耗的关系,为旋流器的选择提供了依据。并验证了在疏浚泥浓度范围内,此类型旋流器均能够达到较高的分离效率。
For solving the problem study a hydrocyclone for silt separation of dredged sediment, 3D model with two phase turbulence flow was built by using FLUENT, the influences about the cylindrical length and the separation efficiency of the hydrocyclone was analyzed, the energy loss formula for separation of dredged sediment was deduced. The entire cylindrical hydrocyclone was presented. It was better than the general hydrocyclone in separation capability and energy loss. At last give the relationship between the inlet velocity, separation efficiency and energy loss. Check the hydrocyclone applicability in dredged sediment concentration
出处
《流体机械》
CSCD
北大核心
2008年第2期31-35,共5页
Fluid Machinery
关键词
疏浚泥分离
水力旋流器
分离效率
能耗
dredged sediment separation
hydrocyclone
separation efficiency
energy loss
