The influence of porous media membrane element on the dust removal efficiency of water film dust collector was studied through experiments,and the effects of gas intake volume,water consumption and gas-water ratio on the dust removal efficiency were dis-cussed.On this basis,the influences of gas flow rate and particle size on the dust removal efficiency were also investigated using the DPM model of computational fluid dynamics.The study shows that the use of porous media membrane element could effectively improve the dust removal efficiency,and the lower the water consumption,the more significant the improvement effect.Both gas intake volume and water intake volume have a significant positive effect on the dust removal efficiency.The effect of gas intake volume is greater than that of the water intake.Regardless of the presence or absence of porous media,the dust removal efficiency reaches its maximum value at the air-water ratio of 21 m3/kg.The simulation results show that under the condition of maximum air flow in the experiment,it can a-chieve a 100％dust removal effect on particles of 94.55 μm and above;for particles of 68.58 μm and above,it can have good dust re-moval efficiency,with a value of over 90％.
关键词
水膜除尘器/DPM模型/多孔介质布膜元件/数值模拟
Key words
water film dust collector/DPM model/porous media membrane element/numerical simulation
维普
万方数据