升气管倾斜对旋风分离器分离效率影响的仿真研究

Gas Exit Tube Incline Effect on Separation Performance in Cyclone Separator

采用雷诺应力模型,研究了在升气管发生倾斜的情况下旋风分离器的分离效率及其内部流场变化的情况,并与正常工况进行了对比。研究表明,升气管倾斜对分离效率有明显的影响,倾斜方向、倾斜角度不同对分离效率产生的影响也不同,随着倾斜角度的增大,虽然有时会出现分离效率的提高,但是总体的趋势是降低的。升气管倾斜对不同尺寸固体颗粒分离效率的影响也不同,被分离的固体颗粒越小,倾斜角度的影响越显著。

B eties have be ties were fou Under specifi overall trend ;ased on reynolds stress model（RSM）, the gas flow pattern and efficiency and its varien discussed when gas exit tube was incline. Comparing with normal situation, variend when gas exit tube inclines towards different orientations with different angle. ic conditions, the augment of tube incline upgrade the efficiency of separation, but the is downward, Tube incline also has different impact on powders of different diameter, The smaller the powder is, the greater the influence is.