摘要
为了确保原油管道在设定的压力下安全运行,采用MOKVELD气动调节输油站场阀来自动调节输油站场管道进出站压力和管道压力波。原油管道输送工艺的特殊性要求调节阀出现故障时应处于保位状态。分析了现有调节阀控制原理和故障保位方案。由于调节阀配套的FISHER DVC6010电气定位器本身不具备故障保位功能,通过对调节阀进行增加电磁阀和信号保护模块的改造,实现了调节阀的故障保位功能。改造后的调节阀已成功应用于原油管道,确保了管道安全平稳运行。
In order to ensure safety operation of crude oil pipeline under certain pressure,the MOKVELD pneumatic control valve is adopted in oil transmission station for regulating the inlet and outlet pressure of the station and the pressure wave of the pipeline.In accordance with the particularity of transportation process,it is requested that the control valve shall be in position securing state when it fails.The control principle and position securing strategy of existing control valve are analyzed.Due to the ancillary DVC6010 electric/pneumatic positioner from FISHER does not support position securing function,it is necessary to add solenoids and signal protection module to revamp and realize this function.The revamped control valve has been used in crude oil pipeline and the safety and smooth operation is ensured.
出处
《自动化仪表》
CAS
北大核心
2013年第8期89-90,94,共3页
Process Automation Instrumentation
关键词
故障保位
原油管道
压力波
调节阀
定位器
电磁阀
安全模式
Position securing in fault
Crude oil pipeline
Pressure wave
Control valve
Positioner
Solenoid valve
Safe mode
