基于Flow Simulation的物料悬浮速度测试装置的流体分析

Fluid Analysis of Material Suspension Speed Testing Device Based on Flow Simulation

摘要: 为了优化物料悬浮速度测试套筒的结构，应用Flow simulation软件对测试套筒内的气流速度分布情况和不同风量开度对气流速度的影响进行了分析。结果表明，套筒内的气流速度随着锥筒高度的增加而呈线性下降；锥筒高度相同时，越靠近锥筒轴线，气流速度越高；在锥筒中下部半径为0.2 m范围内，气流速度变化一致性好，有利于悬浮速度的测量；风量开度与锥筒下断口处的气流速度近似为线性关系，通过调节风量开度能够有效调节锥筒内的气流速度。

Abstract: In order to optimize the material suspension speed test sleeve structure， it uses Flow simulation software to analyze the airflow velocity distribution in the test sleeve and the influence of different air volume opening to the airflow velocity.The results show that the airflow velocity decreases linearly as the cone height increases.When the cone height is same， the closer to the cone axis，the higher the airflow velocity is； In the lower part of the cone （radius＝0.2m）， the change of airflow velocity is good， which is conducive to the measurement of the suspension speed.The velocity of air flow and the flow velocity in the lower part of the cone is linear relation.The airflow velocity in the cone can be adjusted effectively by adjusting the air volume.