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 pumping units in real time. Theref...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 pumping 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 intelligent 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.展开更多
利用功率曲线数据进行游梁式抽油机调平衡的方法,是对电流法、示功图扭矩法等调平衡方法的补充。随着功率测试的普及,该方法的研究越来越受到重视。分析上、下冲程中曲柄平衡块对曲柄轴做功的平均平衡功率与曲柄平衡块位置的关系,结合...利用功率曲线数据进行游梁式抽油机调平衡的方法,是对电流法、示功图扭矩法等调平衡方法的补充。随着功率测试的普及,该方法的研究越来越受到重视。分析上、下冲程中曲柄平衡块对曲柄轴做功的平均平衡功率与曲柄平衡块位置的关系,结合平均电动机输出功率变化量与曲柄平衡块对曲柄轴做功的平均平衡功率变化量的关系,依据上、下冲程中平均电动机输出功率相等的平衡准则,建立了曲柄平衡抽油机平均功率法平衡调整量计算模型。结合现场生产状况,对模型进行说明与应用拓展,进一步提高模型的实用性。实例计算结果表明,该模型达到上、下冲程平均电机输出功率相等的要求,同时整个冲程中的电机均方根功率由9.444 4 k W减小到8.423 7 k W,有利于抽油机节能运行。展开更多
文摘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 pumping 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 intelligent 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.
文摘利用功率曲线数据进行游梁式抽油机调平衡的方法,是对电流法、示功图扭矩法等调平衡方法的补充。随着功率测试的普及,该方法的研究越来越受到重视。分析上、下冲程中曲柄平衡块对曲柄轴做功的平均平衡功率与曲柄平衡块位置的关系,结合平均电动机输出功率变化量与曲柄平衡块对曲柄轴做功的平均平衡功率变化量的关系,依据上、下冲程中平均电动机输出功率相等的平衡准则,建立了曲柄平衡抽油机平均功率法平衡调整量计算模型。结合现场生产状况,对模型进行说明与应用拓展,进一步提高模型的实用性。实例计算结果表明,该模型达到上、下冲程平均电机输出功率相等的要求,同时整个冲程中的电机均方根功率由9.444 4 k W减小到8.423 7 k W,有利于抽油机节能运行。