摘要
利用变频调速智能控制技术对游梁式抽油机冲次进行无级调节,可以改变1个冲程周期内的悬点速度与加速度;建立了抽油机变速运行的数学仿真模型,模拟出悬点示功图和减速箱输出轴扭矩的变化规律。计算结果表明,变速后减小了悬点载荷中的最大惯性载荷,增大了最小载荷,从而降低抽油机载荷的波动程度;曲柄扭矩峰值降低,可以选用小额定功率电机,使其在较高负荷下运行,达到一定的节能效果。现场试验测试结果也证明了变频调速智能控制技术数学模型的可靠性。
The velocity and acceleration of the suspension point during a stroke cycle can be changed when frequency of intelligent control technology is used to achieve stepless regulation of beam pumping unit stroke.Suspension point dynamometer was simulated and the variation of gearbox output shaft torque was obtained,the results showed that the maximum inertia load decreased and the minimum load increased.So the fluctuation of pumping load decreased.The peak crank torque also reduced,so that small rated power motor can be used.It was used under high load and a certain energy-saving effect was reached.Field experiment results also showed that the mathematical model of frequency of intelligent control technology was very reliable.
出处
《石油矿场机械》
2010年第10期4-7,共4页
Oil Field Equipment
关键词
抽油机
变速运行
示功图
曲柄扭矩
pumping unit
variable-speed operation
indicating diagram
crank torque
