混凝中流体力化学致因分析

Chemical Cause Analysis of Fluid Dynamics in Mixture Coagulation Mechanism

在混凝的基础上,阐述了流体动力因素,结合流体力化学基本原理,对流场分布、涡漩剪切碰撞频率、涡漩惯性离心碰撞频率、二次流流场下的颗粒碰撞频率进行理论分析,提出了流体剪切力的大小、剪切时间及流体力"化学反应"是混凝剂与胶体颗粒的作用、颗粒(絮体)的接触碰撞等一系列的物理化学反应,从而使最终的混凝效果达到最优状态.参10.

In this paper, the effects of fluid dynamics in the coagulation period were analyzed. Combining the chemical reaction of fluid force and its model, coagulation fluid dynamics factors were represented. Based on fluid force chemical fundamental reaction of coagulation, flow field distribution, vortex cut collision frequency, inertia centrifugal collision frequency and particle collision frequency by the secondary flow field were analyzed theoretically and shearing force size, shearing time and the chemical reaction of fluid force were caused by the reaction between the coagulation material and colloid particle and a series of physical and chemical reaction of the collision of the particles and reach a best coagulation effect in the end. 10refs.