创新设计游梁式抽油机的计算机求解

Computer Calculation on Innovation Design of Beam-pumping Unit

为解决游梁式抽油机能耗大、效率低、采油成本高,尤其是在下冲程时,抽油杆依靠自重下落出现能量倒流,而使电动机处于发电机运行状态等问题。运用机构创新和机构并联的理论,提出了抽油机联机配对使用的新方案。把其中一个抽油机产生的能量倒流,通过曲柄传递给另一个抽油机,实现了能量的正向转移和充分利用。曲柄旋转一周,实现了两个工作行程,提高了生产率。通过对联机配对抽油机进一步的理论分析,采用计算机求解,得到扭矩特性参数,与常规型、异相型抽油机相比较。联机配对抽油机较好地解决了普通抽油机存在的问题。而且不淘汰原有设备,不用重复投资,只需进行部分改造便可实现。

High energy consumption, low-level efficiency, and high production cost were the main problems when beam-pumping unit was used in production, and the energy retro-flow occurred when the rod fall due to own weight in the down stroke made the motor in a state of electric power generating. Based on the theories of mechanism innovation and parallel mechanism, a new design to use beam unit match was put forward in order to resolve the above problems. The present method realized the positive transfer of the energy, and made the best use of the energy because the energy retro-flow produced by one beam unit was transferred to another one through the crank. It increased production efficiency because one circle of the crank produced two working strokes in the beam unit match. The torque characteristic parameters were obtained by the computer calculation. Comparing with the conventional pumping unit and heterogeneous one, the match-use of the pumping unit handles the problem more effectively. The present method can be realized by partly modifying the equipment without obsoleting the exiting equipment and the need of overlapping investment.