单螺杆抽油泵试验台设计

发布时间：2018-06-02 17:51

本文选题：数字信号处理器 + 空间矢量脉宽调制　；参考：《辽宁工业大学》2015年硕士论文

【摘要】：随着当今社会的蓬勃发展，能源问题日益突出了，石油需求量也越来越大。螺杆泵作为油田使用最为广泛的采油设备，生产厂家的数量也如雨后春笋般猛增，螺杆泵的种类随之越来越多。螺杆泵质量的优劣直接影响油田石油开采，质量不达标的螺杆泵使用寿命短、工作效率低、故障频繁等缺点都会影响石油开采，甚至导致重大事故发生。螺杆泵产品在出厂前进行科学检测是避免这些问题发生最有效的方法。目前国内很多螺杆泵生产厂家仍使用传统人工检测方式，这种方式无法准确、全面的反映出螺杆泵性能，因而科学、智能的螺杆泵检测方式是必然趋势。本螺杆泵检测控制系统是根据锦州市鹏宇泵业有限公司的要求和国家相关标准设计的，用于锦州市鹏宇泵业有限公司产品进行科学、全面检测。螺杆泵检测控制系统主要分为上位机和下位机两大部分。下位机部分是由检测模块和控制模块组成，上位机部分为数据处理模块组成。检测模块用于检测螺杆泵试验过程中泵出入口压力、介质流量和温度、电机转速等参数，根据允许误差范围和最大误差范围完成了传感器、数据采集等硬件的选取及相关硬件电路设计工作；控制模块主要由高性能数字信号处理器和变频器构成，用于控制螺杆泵驱动电机转速，由于电机无法建立精确的数学模型，因而选取自适应模糊PID控制方法结合空间矢量脉宽调制原理设计三相交流电机转速控制模块，为了验证调速系统设计的合理性，在MATLAB/SIMULINK中建立仿真模型，得出仿真结果。并TMS320F2812芯片为核心设计了电机调速系统相关电路硬件设计。数据处理模块利用Visual Basic6.0软件完成登陆界面、系统主控界面、打印界面等设计，，主控界面功能为对整个试验系统进行实时监控、泵工作效率和容积效率计算、试验数据实时显示，并将试验数据存储至制定数据库中，为以后螺杆泵新产品研发提供依据。打印界面可打印以往所有试验的数据报表，在实际的螺杆泵检测系统应用，完成在转速分别为100r/min和150r/min情况下对螺杆泵检测工作，并打印了螺杆泵试验报告数据表。
[Abstract]:With the vigorous development of the society today, the energy problem is becoming more and more prominent, and the demand for oil is increasing. As the most widely used oil recovery equipment in oil fields, the number of screw pumps has increased rapidly, and more kinds of screw pumps have been produced. The quality of screw pump has a direct impact on oil production. The shortcomings such as short service life, low working efficiency and frequent faults will affect oil exploitation and even lead to serious accidents when the quality of screw pump is not up to standard. The most effective way to avoid these problems is to carry out scientific inspection of screw pump products before they leave the factory. At present, many domestic manufacturers still use the traditional manual testing method, which can not accurately and comprehensively reflect the performance of the screw pump. Therefore, the scientific and intelligent testing method of the screw pump is an inevitable trend. The screw pump detection and control system is designed according to the requirements of Jinzhou Pengyu pump Industry Co., Ltd and relevant national standards. It is used for scientific and comprehensive testing of the products of Jinzhou Pengyu pump Industry Co., Ltd. Screw pump detection and control system is divided into two parts: upper computer and lower computer. The lower part is composed of the detection module and the control module, and the upper part is the data processing module. The detection module is used to detect the parameters of pump inlet and outlet pressure, medium flow rate and temperature, motor speed and so on during the testing process of screw pump. The sensor is completed according to the allowable error range and the maximum error range. The control module is mainly composed of high performance digital signal processor and frequency converter, which is used to control the rotational speed of the screw pump driven motor, because the motor can not establish accurate mathematical model, the control module is mainly composed of high performance digital signal processor and frequency converter, which is used to control the rotating speed of the motor driven by the screw pump. Therefore, the adaptive fuzzy PID control method combined with the principle of space vector pulse width modulation is selected to design the rotational speed control module of three-phase AC motor. In order to verify the rationality of the design of the speed regulation system, the simulation model is established in MATLAB/SIMULINK, and the simulation results are obtained. And TMS320F2812 chip as the core design of the motor speed regulation system related circuit hardware design. The data processing module uses Visual Basic6.0 software to complete the design of the landing interface, the system main control interface and the print interface. The main control interface function is to monitor the whole test system in real time, calculate the pump working efficiency and volume efficiency, and display the test data in real time. The test data are stored in the database to provide the basis for the future research and development of new products of screw pump. The printed interface can print all the data reports of the previous tests and be applied in the actual screw pump testing system. The testing work of the screw pump is completed under the condition of 100r/min and 150r/min, respectively, and the report data table of the screw pump test is printed.
【学位授予单位】：辽宁工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE933.3

【参考文献】