直线电机井下驱动采油装置设计

毕业设计

（论文）

题目：直线电机井下驱动采油装置设计

院系：机械工程系

学科专业：机电一体化

学生：

指导教师：

2010年10月

题目：直线电机井下驱动采油装置设计

摘要

目前各油田的抽油设备为常规游梁式抽油机,其存在的主要问题是能耗大、效率低。游梁式抽油机附件多,依靠改进结构,不能使其系统效率有质的提高,因为每增加一个环节就必然会增加一份附加损耗。而直线电机抽油机采用直线电机驱动,舍弃了大部分变速传动环节,将传统的旋转驱动变为直线往复驱动,使直线电机抽油机具有更加完善的运动性能、动力性能和平衡性能。直线电机抽油机在我国乃至世界都属于新兴技术,研究设计这种抽油机有着特殊的意义。通过优化直线电机抽油机基本运行参数,可以降低悬点最大载荷及最大载荷与最小载荷差值,使直线电机运行更加平稳。通过提高直线电机抽油机的工作效率,减少电机内部的各种损耗,达到节能的目的。

本文首先概述了国内外抽油机的类型、发展情况及存在的主要问题，并阐述了直线电机的发展历程、基本结构、工作原理及发趋势和研究现状。随后对各种类型的直线电机的性能进行比较，最终选用了圆筒型永磁同步直线电机作为动力系统来驱动抽油机。通过研究圆筒型永磁同步直线电机的特殊结构和等效电路，提出用于抽油机的直线电机的主要参数设计，得出用于具体工况下圆筒型永磁同步直线电机

的主要参数，确定其尺寸及结构，再对电机进行磁路计算，以及性能计算。

本文的研究对于此类电机、抽油机的研究具有一定的学术意义及应用价值。

关键词：直线电机,节能,永磁,抽油

TITLE: THE LINEAR MOTOR DRIVEN UNDERGROUND

OIL EGUIPMENT DESIGN

ABSTRACT

At present the oil field pumping equipment for the conventional beam pumping unit, the main problem is that its energy consumption, low efficiency. Multi-beam pumping unit attachment, relying on improved structure, not to improve the quality of the system efficiency, because each additional step of an additional loss is bound to increase. The linear motor linear motor-driven pumping unit, abandoning most of the variable speed transmission links, the conventional rotary drive into linear reciprocating drive, so that a more perfect linear motor pumping sports performance, dynamic performance and balance performance. Linear motor pumping in our country and the world are all emergi ng technologies, research and design such a pumping unit has a special significance. Basic linear motor pumping by optimizing operating parameters, can reduce the suspension point, the maximum load and maximum load and minimum load of difference, so that l inear motor run more smoothly. By increasing the pumping efficiency of linear motors to reduce motor of the various losses, save energy.

This paper outlines the type of pumping at home and abroad, the development situation and existing problems, and expla ins

the development process of a linear motor, the basic structure, working principle and hair trends and the current research. Then various types of linear motors to compare the performance of the final selection of the cylindrical permanent magnet synchronous linear motor as the power system to drive the pumping unit. By studying the cylindrical permanent magnet synchronous linear motor of the special structure and equivalent circuit is proposed for the pumping of the main parameters of linear motor desig ned for specific operating conditions obtained cylindrical permanent magnet synchronous linear motor primary parameters, determine the size and structure, then the motor magnetic circuit calculations, and performance calculations.

The research for this ty pe motor, pumping unit of a certain academic significance and value.

KEY WORDS: linear motor, energy saving, permanent magnet, pumping unit