旋风式分离器关键参数的仿真与优化

he cyclone is one of the most widely used separation equipment currently, it has the advantage of simple structure, easy to operate, but the separation efficiency is vulnerable to the impact of various aspects, especially the greater impact from tilt angle of the cone segment of the separation efficiency foreign body. There is to use the RNG modules in Fluent to do a series of the particle motion of the cyclone internal simulation, to analysis the separation efficiency that corresponds the different angles, and to obtain a better structure of the size and separation efficiency. This article obtained when the foreign body diameter less than 1.5μm and the V≤30m/s,the separation efficiency wound less than 30%, it can not be directly separated by the separator, only if V ≥ 50m / s can only be separated,at the same time,the separation efficiency wound more than 60%; When the foreign matter having a diameter of between 2μm to 2.5μm, the inclination angle is 12 . there will be an apparent extreme point, the best separation effect can be gained at this point; When foreign body diameter greater than 3μm, the separation efficiency is almost without impact with cone angle.