Design of the Control System of Adaptive Balancing Device Based on PLC 基于PLC的自适应平衡装置控制系统设计.pdfVIP

Design of the Control System of Adaptive Balancing Device Based on PLC Abstract Due to the well condition and the un-expected imbalance movement of the pumping unit in use, the energy consumes a lot. The existing balancing equipment cannot adjust and monitor the pum- ping units in real time. Therefore this paper introduces the new adaptive balancing equipment— fan-shaped adaptive balancing intelligent device, projects a design of such control system based on PLC, and determines the principle of the control system, the execution software and the design flow. Site commissioning effect on Daqing Oilfield shows this fan-shaped adaptive balancing intel- ligent device can effectively adjust and monitor the pumping unit in real time, the balance even adjusts from 0.787 to 0.901, and integrated energy saving rate is 14.2%. It is approved that this control device is professionally designed, with strong compatibility, and high reliability. Keywords Pumping Unit, Fan-Shaped Adaptive Balancing Intelligent Device, Balance Adjustment, Energy Saving, PLC, Remote Control 1. Introduction The existing pumping units are commonly biased compound balanced pumping units, the mechanism of which is adding stationary counterbalance to the tail of pumping unit, thus effectively combining crank-balance and biased compound balanced facility to improve the balance of pumping units. However, problems are that the balance of pumping units cannot be adjusted in real time, and such balance structure also consumes lots of steel, etc. [1]-[3]. To solve these problems, the researchers at home and abroad have been keening on the development of auto-adaptive balancing intelligent units in recent years. And over the years of improvement, researchers have eventually developed new integrated energy saving pumping units and increased integrated balancing technolo- gy [4], such as a biased downward barbell type pumping unit, double ho