成品油库紧急关断系统(ESD)设置的建议

Suggestions on Setting up Emergency Shutdown ( ESD) System for Oil Depots

针对目前石油库设计规范中缺少油库安全控制系统和仪表的设计要求,通常将安全控制与过程控制合并设置,安全功能在过程(PLC)中实施,不单独设立紧急关断系统(ESD)以及在油库实际运行中无独立的分级关断控制,存在潜在安全漏洞,易造成事故的扩大和蔓延的问题,提出油库紧急关断系统应设全库区、区域、设备三级关断和顺序关断的建议,为后续油库紧急关断系统的设计提供了思路。

Due to the lack of safety control system and instrument design requirements in the current oil depot design specifications,the safety control and process control are usually combined,the safety functions are implemented in PLC of process,emergency shutdown(ESD)system is not established separately,and there is no independent hierarchical shutdown control in the actual operation of the oil depot.So,the potential safety loopholes exist,which can easily lead to the expansion and spread of accidents.The suggestion is put forward that the emergency shutdown system of oil depot should have three levels,such as the whole reservoir area,region and equipment,and sequential shutdown,which provides ideas for the design of emergency shutdown system of oil depot.