关键词: 惯性分离装置, 性能分析, 分离效率, 系统压降, 结构优化

Abstract:

By constructing the inertial separation device test platform and combining the data acquisition of the relevant detection equipment, the performance analysis of a certain type of inertial demister was carried out. It was found that the separation efficiency of the two-channel baffled inertial separation device was proportional to the droplet diameter. For droplets with a fine particle size of 5μm to 10μm, the separation effect was not good, and the wind speed had little effect on the separation efficiency. The droplet separation effect was better for 30μm or more, and the overall efficiency exceeded 80%. In terms of system inlet and outlet pressure drop loss, the change of particle size was approximately negligible to the whole device. The pressure drop curve under different particle size conditions was basically the same, and the wind speed was the main influencing variable of pressure drop change. In order to break through the limitation of poor separation of small particle size droplets, the separation efficiency and pressure drop of different size parameters were analyzed from the aspects of plate spacing, bottom height and plate shape. The calculation results showed that the larger the plate spacing value, the lower the separation efficiency and the smaller the system pressure drop. The change in bottom height and efficiency was not generally related, and there was fluctuation and local correlation. When the best height was 30mm, the system pressure drop was also small. The more channel stages, the higher the separation efficiency, but the larger the pressure drop. The streamlined wall separation effect was better, and the ability to control the pressure drop was also stronger.

Key words: inertial separation device, performance analysis, separation efficiency, system pressure drop, structure optimization