双螺杆泵型线分析及仿真研究  

Profile analysis and simulation study of twin-screw pump

作　　者：李增亮[1] 张瑞霞[1] 高扬[1] 陈猛[1] 

机构地区：[1]中国石油大学(华东)机电工程学院

出　　处：《石油机械》2008年第3期41-44,81,共4页China Petroleum Machinery

基　　金：中国石油天然气集团公司中青年创新基金项目"双螺杆多相混输泵新型型线研究及仿真设计"资助

摘　　要：以国内外常用的双头对称长幅摆线型线和单头摆线组合型线2种双螺杆泵型线为研究对象，用Pro／E进行建模，用Matlab编程软件计算接触线长度，用Admas软件进行了仿真研究，得出上述2种型线双螺杆泵摩擦力与两端压差的关系曲线。分析研究得出如下结论：（1）双头螺杆的接触线长度比单头螺杆要长，因此实际应用中排量大的选双头螺杆较好，而输送压力较高的场合选单头螺杆较好；（2）圆弧修正的双螺杆泵型线避免了点接触，可延长双螺杆泵的寿命；（3）双螺杆泵可适用于中、小流量（10～1000m^3／h）和低、中、高压差（0～10MPa）以及不同含气体积分数（0～100％）的流体输送。Two common kinds of profile models of twin-screw pump are confirmed,according to the twin-screw pump profile and its development tendency at home and abroad.By the software-PRO/E,the model of the twin-screw pump rotator of double thread and single thread are built.Using the software-ADMAS,the simulation about the pump is carried out,the change rule of axial force and friction with two ends pressure difference of twin-screw pump is generalized.Through the software-MATLAB,the length of contact line is calculated.On the basis of the length,the leaking amount difference of twin-screw pump is summed up and the circular arc of the profile is modified and optimized.Based on the analysis,several conclusions are drawn,which bring forward several useful criterions for choosing and using the twin-screw pump.

关 键 词：双螺杆泵 型线 双头螺杆 单头螺杆 接触线 

分 类 号：TH327[机械工程—机械制造及自动化] TK423.41[动力工程及工程热物理—动力机械及工程]