The Numerical Simulation Of Electro-hydrodynamic With Special-shaped Plate

In electrostatic precipitator, the current state is very complex body movement, turbulent structure, collection of the dust collector of fine dust impact is very large, and so, improve precipitator internal current body motion is essential. In this paper, in the form of plates from collecting dust in change, we devised a way shaped plate that is on the discharge electrodes on both sides of the plate are perforated, to reduce dust in the ion wind speed, objective to improve dust collection rate of fine dust.First of all, according to the experimental parameters, create 2D simplified model precipitator, gambit software is used to divide the discharge space. close to the discharge electric field intensity change is very dramatic, so close to the discharge electrode 100mm2 range pave mesh refinement, in an amount of 3 times the external grid, then the different forms of the grid were designed other ranges grid solutions, and for comparison. Finally established the optimum mesh solution.Secondly, use software to simulate the discharge space fluent fluids. Traditional plates were shaped plates and dust inside the ion wind speed contrast at the same voltage, wind speed of 0.6m/s, contour contrast velocity vector, wind speed at different voltages corresponding to different values of the velocity profile comparison, shaped plate than the original plates obtained fine dust collection rate of conclusion, and measured the actual test results match.Finally, five electrodes under simulated conditions inside the precipitator ion air motion. by comparing the original form of movement and speed profile plate and profiled plate, come to the conclusion profiled plate is more suitable practical application, determine the feasibility of profiled plate ESP applications.According to the current body state profiled plate simulation, in the single electrode condition and test results consistent with the conclusions, further verification of the profiled plate to improve the collection efficiency of feasibility. further simulate the discharge current body form of exercise five electrodes, for the practical application of the change in the form of dust collector plates can be improved to provide a theoretical reference to the conclusions of fine dust collection rate.