Experimental study on dehydration property of free revolving blade mist eliminator
自由旋片除雾器脱水性能实验研究

A new mist separator, free revolving blade mist eliminator, was developed in this study. The performances of this mist eliminator, such as the separation efficiency and the pressure drop, were investigated in laboratory. The experimental results showed that the separation efficiency got to the maximum value when the gas velocity was about 11 m/s. In comparison with the fixed blade mist eliminator, the free revolving blade mist eliminator achieved much greater separation efficiency, with at least 10% increment in the maximum separation efficiency. The separation efficiency curve of the free revolving blade mist eliminator was quite smooth with the velocity varies from 6 to 13 m/s, which indicated that that it had a good adaptability to velocity perturbation. Furthermore, the separation efficiency could also be enhanced by increasing the liquid to gas ratio and the water droplet diameter. The pressure drop coefficient of the free revolving blade mist eliminator was only 4.3 while the fixed blade mist eliminator was 6.6. Therefore, the performances of this new type mist eliminator are superior to the fixed blade mist eliminator.