关键词: 旋流器, 导向叶片, 分散相, 聚结, 破碎

Abstract:

Simulations and experiments on the flow field were used to study the internal flow and turbulence in a vane-guided hydrocyclone.The main factors resulting in droplet coalescence and breakup are viscous shear force related to the velocity gradient and the high shear stress and turbulent kinetic energy in the turbulence.Moreover, the positions in the hydrocyclone where droplets inclined to coalesce and break were investigated.In order to understand the relative importance of droplet coalescence and breakup in the vane-guided hydrocyclone, the separation performance as its characteristic was verified.The experiments on the separation performance also show that the structural parameters, such as the number and outlet angle of guided vanes, and operating parameters, such as the inlet velocity, split ratio, inlet concentration and operating temperature, affect the droplet coalescence and breakup in the vane-guided hydrocyclone.

Key words: 旋流器, 导向叶片, 分散相, 聚结, 破碎