摘要
为防止和减少危险化学品事故的发生,涉及到政府安监部门重点监管的危险化工工艺、重点监管的危险化学品和重大危险源等相关新建或在役装置、罐区,均需配置全生命周期的安全仪表系统(SIS)并评估SIL等级。介绍了SIS工程设计阶段的主要内容,阐述了设计仪表安全联锁过程中,编制合理的安全仪表规格书的重要性、依据及内容等,并分析在满足SIL等级要求前提下,不同联锁触发配置的加热炉进料管线压力高高关进料阀门联锁控制方案的安全性及可用性。
To prevent and reduce the occurrence of hazardous chemical accidents, it is necessary to configure the whole life cycle safety instrumented system(SIS) and evaluate SIL for the newly built or in-service installation and tank farm, which related to the hazardous chemical process, hazardous chemicals and major hazard sources under the focused supervision of the government safety supervision department. The main content of SIS engineering design stage is introduced. The importance, basis and content of compiling reasonable safety instrument specification in the process of designing instrument safety interlock are expounded. The safety and availability of interlocking control schemes for high pressure feed valve of heating furnace feed line with different interlocking trigger configurations are analyzed on the premise of meeting SIL requirements.
作者
伊飞
Yi Fei(CNOOC Petrochemical Engineering Co.Ltd.,Qingdao,266100,China)
出处
《石油化工自动化》
CAS
2022年第3期27-32,共6页
Automation in Petro-chemical Industry
关键词
安全仪表规格书
危险失效
安全失效
平均失效率
误停车率
安全失效分数
safety requirements specification
dangerous failure
safe failure
probability of average failure on demand
spurious trip rate
safe failure fraction
