基于FLUENT的通风机静音叶片结构优化分析

Optimisation Analysis of Silent Blade Structure of Ventilator Based on FLUENT

针对矿井对旋式通风机在工作时噪声大,影响使用安全性的不足,提出了多种风叶结构优化方案,并利用FLUENT仿真分析软件对不同风叶结构下的风机运行特性进行了仿真,确定了最佳叶片结构。根据仿真分析表明,采用在叶片内侧增加锯齿状缺口,在风机外侧增加圆弧段过渡的优化方案可以把风机在工作时的运行噪声减小14.9%,有效地解决了对旋式通风机工作时噪声大的不足,提升了矿井通风环境。

Aiming at the shortcomings of mine counter-rotating ventilator,which is noisy during operation and affects the safety of use,a variety of blade structure optimisation schemes are put forward,and the operating characteristics of the fan under different blade structures are simulated using FLUENT simulation and analysis software,and the optimal blade structure is determined.According to the simulation analysis,the optimisation scheme of increasing sawtooth notch on the inner side of the blade and increasing the transition of circular arc section on the outer side of the fan can reduce the operating noise of the fan by 14.9%during the working time,which effectively solves the shortcoming of the counter-rotating ventilator's high noise during the working time,and enhances the ventilation environment of the mine.