Research On The Energy-saving Of Beam Pumping Units Based On The Virtual Prototype Technology

The pumping unit is one of the most important equipment of rod pumpingsystem，its working performance has the directly influence on the work station andefficiency of the entire pumping system. The beam-pumping unit is the mostextensive machine which applied in the oil field, because of its obvious meritscovering simple structure, easy manufacture, high accuracy, durable performance,easy maintenance and adapt to various complicated working condition. But thebeam-pumping unit has the problem of high energy consumption, low efficiency andthe negative torque of the motor. So saving energy problem in beam pumping unitwas aroused concern among the manufacturers, scientific research institutions anduniversities home and abroad.In order to reduce energy consumption and improve efficency of beam pumpingunit, the author calculates the movement parameters and the dynamic analysis of thebeam-pumping unit and dynamic simulations of themechanism were done byADAMS software. By comparing the currently widely used in pumping energy-saving measures and Analysis of the pumping unit energy consumption, the author designs anew Hydraulic Energy-Accumulation System to decrease energy consumption of thepumping unit and undertakes a detailed study of energy recovery for thebeam-pumping unit by the co-simulation of AMESim and ADAMS.The main conclusions are as follows:In Chapter1，this article gives a brief description of the research background andsignificance of the beam pumping units’ energy research. Meanwhile, it hasgeneralized the research state on the aspects of the energy-saving of Pumping Unitdomestically and abroad, the application of the virtual prototype technology and themain research and study in this paper.In Chapter2， the structure and working principle of beam pumping unit areintroduced. The author analyzes kinematics and dynamics of beam pumping unit. Thestudy can provide a theoretical basis for foundation of the virtual prototype model.In Chapter3，by inserting the three-dimensional model of beam Pumping Unitestablished using UG into ADAMS, a kinematic simulation analysis of the mechanismis completed, obtaining the parameter curves of the motion laws of the beam pumpingunit, the torque and output power on the reduction gearbox crank shaft andthe output power of motor. According to the analysis of simulation results, the using condition of the load factor of the conventional pumping-unit are obtained in thesimulation environment.In Chapter4，by comparing the currently widely used in pumping energy-savingmeasures, the author designs a new Hydraulic Energy-Accumulation System todecrease energy consumption of the pumping unit, recommends the paramountcomponents of hydraulic system and mechanical system and describes the workingprinciples of the new Hydraulic Energy-Accumulation System. Based on powerbalance principium, the author determines and calculates the related parameters ofhydraulic components. Then, the author establishes the simulation model of AMESim,and builds the interface of two simulation software. The simulation analysis showsthat influence of the negative work on the motor disappeared and the efficiency of themotor improved. The average saving rate is as high as23.3%or more, which reachedobvious saving energy effect.In Chapter5，All the work and conclusions of the paper and the shortage ofarticles are summarized. The future research direction is proposed.