摘要
潜油双螺杆泵是一种新兴的高效人工举升工具,但国内外对其的研究起步较晚,至今还没有成熟的理论。利用平行平板间隙的平行流动与剪切流动理论,将螺杆沿周向展开,并考虑螺旋角的影响,推导出了圆周间隙的间隙流模型与功耗模型;同时,采用曲面—曲面间隙模型分析径向间隙,获得了径向间隙的间隙流模型与功耗模型;另外,利用平行平板间隙理论,将齿侧间隙流动解析为变截面间隙流动,建立了齿侧间隙的间隙流模型与功耗模型。为技术人员开发潜油双螺杆泵系统、进行间隙的优化选择提供了理论基础。
The submersible twin screw pump,an emerging and high efficient method of artificial lift,is underdeveloped and there is no mature theory.Based on parallel flat clearance theory and shear flow,a clearance flow model and dissipation power model of the circumferential clearance were developed by expanding screws in circumferential direction and considering the effect of helical angle.At the same time,clearance flow model and dissipation power model of the radial clearance were derived by analyzing the surfacesurface clearance model.In addition,clearance flow model and dissipation power model of the lateral clearance were established by changing the clearance flow model into section-varied clearance flow.This paper provides the basis for the development of submersible twin screw pump system and clearance optimization.
出处
《石油钻探技术》
CAS
北大核心
2007年第6期76-78,共3页
Petroleum Drilling Techniques
基金
中国海洋石油总公司科研项目"螺杆泵采油技术开发"(编号:2003-541)
西安石油大学博士科研启动项目"电潜螺杆泵传动系统优化设计及数字仿真技术研究"(编号:Z07061)部分研究成果
关键词
螺杆泵
啮合
泵效
数学模型
screw pump
engage
pump efficiency
mathematical model
