摘要
天然气管道压降速率检测多使用专用控制器,其扩展性差,购置周期长,费用昂贵。通过站场PLC压降速程序设计,编程实现压降速率实时值计算,并提供开放接口,站场可根据实际工况,设定报警值、阀门关断值。
The oil and gas pipeline pressure drop rate detection uses a special controller, which has poor expandability, long purchase period and high cost. In this paper, through the station PLC pressure drop rate program design, the program realizes the real-time value calculation of the pressure drop rate, and provides an open interface. The station field can set the alarm value and the valve cut-off value according to the actual working conditions.
引文
[1]齐建波.西气东输二线线路截断阀压降速率计算分析[J].管道技术与设备,2015(04).
[2]IEC_6-1131-3标准[S].
[3]Logix5000通用指令集[Z].