过滤系统脉冲反吹喷嘴优化设计  

Optimal Design of Pulse Cleaning Nozzle in Filtration System

作　　者：李海霞[1] 铁占续[1] 高丙光[1] 刘志超[1] 

机构地区：[1]河南理工大学,河南焦作454000

出　　处：《流体机械》2009年第6期28-31,23,共5页Fluid Machinery

基　　金：河南理工大学博士基金项目(No.648242)

摘　　要：应用FLUENT软件提供的雷诺应力模型分析了陶瓷过滤器脉冲反吹用喷嘴内、外部的流场分布,通过分析气体穿过滤管多孔壁面的压降变化和流体喷吹过程的引射效果对喷嘴的性能进行了优化设计。分析了喷嘴出口直径、收缩角度和喷嘴与引射器之间的距离对流场分布的影响,并对这些参数进行了优化。Numerical simulation of ceramic filter unit was carried out in order to optimize the pulse cleaning system design by investigating the pressure drop across the filter wall and the entrainment effect using FLUENT code. The Reynolds stress transport model provided by FLUENT code was applied to evaluate the gas flow. The various size of convergent nozzle was studied. And then the gap between the nozzle and the diffuser was optimized using the optimized nozzle.

关 键 词：喷嘴 数值模拟 脉冲反吹 引射 

分 类 号：TK263.4[动力工程及工程热物理—动力机械及工程]