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根据原油管线运行中对压力、流量等参数的控制要求,在研究和实践的基础上,将数字PID控制器应用到对原油输送管线的控制中。PLC经过PID运算计算出控制数据,通过现场气动调节阀调节阀门开度,实现了管线运行参数的自动控制。通过现场应用,该方案能够大幅减少操作人员劳动强度,有效的保证管线按照设定参数安全平稳运行。
According to the control requirements of pressure, flow and other parameters in crude oil pipeline operation, based on the research and practice, the digital PID controller is applied to the control of crude oil pipeline. PLC calculates the control data through the PID operation, adjusts the valve opening through the on-site pneumatic control valve, and realizes the automatic control of the pipeline operation parameters. Through on-site application, the program can greatly reduce the labor intensity of the operator, and effectively ensure that the pipeline runs safely and safely according to the set parameters.