Chinese English
  Home    About    Product    News    Download    Order    Contact
  Navigation
 
 
   
  Contact

Sales hotline:$$$$$

  Profile
 
CFD calculation results and analysis of pneumatic ball valve
The author: Time:2019/9/27

      对于实验系统中的气动球阀,由式可知,当阀芯由全开旋转80°时,球阀恰好完全关闭。对实验系统球阀管路模型在有效关阀时长内采用先快后慢的两阶段线性关阀进行CFD数值仿真,且数值模拟的所有工况中整个关阀时长均采用0.5 s。
      其中,“以270 °/s速度快关43.75%”工况的球阀模型纵截面各时刻的压力云图和速度云图分别如图所示。可以看出,球阀阀芯在由全开到关闭的过程中,由于阀芯的节流作用,流速发生了剧烈的变化,造成了严重的压力损失,而且进口管道和出口管道的压差会随着气动球阀的关闭而增大。

On an article:The closing rule of the ball valve for water hammer protection       Next article:Experience in pneumatic control valve maintenance
 

All rights reserved @ hebei west bo control valve limited company phone: 0311-85675390
Url: www.xipovalve.com address: shijiazhuang changan area square north technical support: 58, :zhongshihulian