栈桥轻油发运装车控制系统的改进  

Improvement of Loading Control System for Light Oil Transporting at Trestle Bridge

作　　者：李章青 邓勇 任攀 

机构地区：[1]中石油兰州输油气分公司,兰州730000 [2]四川南充炼油化工总厂,四川南充637000

出　　处：《石油化工自动化》2011年第4期41-45,共5页Automation in Petro-chemical Industry

摘　　要：南充炼油化工总厂轻油发运系统自2006年底运行以来,装车控制系统逐渐显现出故障率高、稳定性差的问题,针对该问题,分析了系统控制电路中存在的设计缺陷,取消液位控制闭环单回路中原有的IFM探头、安全栅、控制板,改用密封和抗腐蚀性能较好的TURCK电容式接近开关、隔离开关放大器、交流接触器和电动阀。经实际运行,改进后的控制系统较好地解决了原系统存在的问题,提高了装车效率。With the using of the light oil transporting system in Nanchong refining and chemical complex at the end of 2006,the problem of high failure rate and poor stability is gradually emerging out in the loading control system.The design defects of the system control circuit have been investigated for the problem,and the improvement proposals have been put forward.After running practically,the improved control system solves the problem in the original system successfully,and the loading efficiency is increased.

关 键 词：轻油发运 装车控制系统 高液位报警 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]