摘要
采用CFD三维流场分析软件对楔形节流阀防刺短节的流场进行模拟,研究防刺短节中流体的流速及压力变化。结果表明:在给定的边界条件下,流体经过防刺短节进出口端时,平均速度差基本不变,压强差在0.29～0.3MPa之间变化,最大速度(16.36m/s)发生在防刺短节出口壁面处(即合金头的下端部位),合金头用硬质合金材料,此最大速度对其影响不大,故其不会受到较大的冲蚀。因此,在实际工况下,这种防刺装置可以正常使用。
In this paper,by using analysis for three-dimensional flow field software of CFD,flow field of erosion resistance device has been simulated,and the results show that： in given boundary conditions,and there is no large change in average velocity when flow through the inlet and outlet end of the erosion resistance device.Fluid pressure differential is change among 0.29~0.3 MPa,change of velocity is very small,the maximum velocity（16.36 m/s） is happening in the wall of the device outlet（the below parts of the head alloy）.Alloy head is made of carbide material,the maximum speed has no great effect on alloy head,and the erosion resistance device would not be eroded greatly.Therefore,in actual conditions,the erosion resistance device can be used normally.
出处
《机械研究与应用》
2011年第5期23-25,共3页
Mechanical Research & Application
关键词
防刺短节
井控管汇
三维流场分析
冲蚀
erosion resistance device
well-control header
analysis for three-dimensional flow field
erode
