A novel Corrugated Falling-Film Channel was developed in this work for application to industrial dust removal. Its pressure drop, inertial capture pattern, and grade capture efficiency were evaluated by simulation and experiments. The different inertial capture patterns were investigated on the windward side and leeward side by calculating aerosol particle trajectories, which show the particles captured on the leeward side get into the vortex first and then captured by the leeward wall with a certain probability. With the increase of particle diameter, the capture efficiency on the windward side increases gradually. However, the capture efficiency on the leeward side increases at first, then decreases to 0 due to the large size particle being too hard to be caught by the vortex. The increase of inlet gas Reynolds number will result in higher capture efficiency. The increase ratio of capture efficiency on the leeward side is higher when particles smaller than 9 μm, while on the windward side it is higher when particles size over 9 μm. Based on the simulation results, a new capture efficiency model was established and verified with experimental data.

在这项工作中开发了一种新颖的波纹状落膜通道，用于工业除尘。通过仿真和实验评估了其压降，惯性捕获模式和坡度捕获效率。通过计算气溶胶颗粒的运动轨迹，研究了在上风侧和下风侧的不同惯性捕获方式，表明在下风侧捕获的粒子先进入涡流，然后以一定的概率被下风壁捕获。随着粒径的增加，迎风侧的捕集效率逐渐提高。但是，由于大尺寸粒子太难被涡旋捕获，背风侧的捕获效率首先增加，然后降低到0。进气雷诺数的增加将导致更高的捕获效率。当粒径小于9μm时，背风侧捕获效率的增加率较高，而当粒径大于9μm时，在上风侧捕获效率的增加率较高。根据仿真结果，建立了一个新的捕获效率模型，并用实验数据进行了验证。