GLB120-27型采油螺杆泵的静力学特性分析

针对单螺杆泵转子与定子橡胶间的磨损,根据其工作原理和结构特点,用SolidWorks 2007建立了油田广泛应用的GLB120-27单螺杆泵的实体模型.利用有限元分析软件ANSYS11.0,选用四面体单元SOLID45和六面体单元SOLID185,并采用映射网格与自由网格相结合的网格划分方法,再模拟螺杆泵工作参数,即压力、扭矩、过盈量以及温度等环境因素,建立多种工况的有限元模型.运用ANSYS进行力学分析,得出剪应力、接触压力等力学参量的分布规律,为分析螺杆泵的磨损机理奠定基础.

Static Analysis of GLB120-27 Type Screw Pump

Abstract:When the abrasion between rotor and stator rubber of the single screw pump has been caused, according to the operation principles and structural characteristics, the entity model of the GLB120-27 type single screw pump which is used in oilfield was established. The finite element model for different working condition was developed using the software ANSYS11.0, tetrahedron element SOLID 45 and hexahedron element SOLID 185, and method of dividing the net lattice by mapped and free meshing, simulating the running parameter, such as pressure, torque, magnitude of interference, temperature. The model has been analyzed on mechanics by ANSYS. The distribution rule of the mechanics parameter has been obtained, such as shearing strength, contact pressure and so on. The analytic result can provide the theoretical basis for analyzing the abrasion of screw pumps.