Energy-efficient Pumping Dynamic Simulation And Optimization Design

Energy-saving pumping unit is a new type of pumping equipment for stripper development well of oilfield. The pumping is inspired by the mine hoist, besides, the driving device can also be used as mine hoist. This thesis has researched the hoisting system, made a movement and dynamics simulation, and the optimization design has also been included.It is useful for improvements and reduce production costs.First introduced pumping design and design theory, including a flexible rod design, flexible joint design with the plunger rod, automatic rope mechanism design, reel design and theoretical calculation- strength calculation, spindle design and theoretical calculations- strength stiffness calculations. Computational theory regard as constraints to optimal design.The motion process is analyzed according to the working principle of energysaving pumping unit. On the basis of kinematics, a detailed analysis and calculation has been worked out on the dynamic characteristics of stroke pumping unit of top dead center, bottom dead center, In addition, it needs to calculate through establishing the dynamic equations of flexible sucker rod.The pumping unit, assembled in 3D graphics software, would be imported into ADAMS, where the dynamics simulation model is established. The flexible sucker rod is built by the bushing force in the ADAMS environment. From the simulation results can be seen in the start-up and braking phases of dynamic load is relatively large, we should consider it when we design new pumping unit.The optimal design goal is to minimize quality of reel and spindle,The established mathematical model has been solved by using genetic algorithm in matlab, Quality optimized 17 percent less than before...