摘要
采用Flarenet软件模拟已设计完成的苯乙烯安全泄放回收系统泄放管网的工作过程,并结合工程经验和依据动态模拟结果对其进行了优化设计,同时考虑了冷凝回收失效时管网的应对措施。模拟结果表明:苯乙烯安全泄放回收系统的运行完全符合相关的安全环保规范;管网所用的安全阀适合选择平衡波纹管。动态模拟和防火保温措施不仅能使管网的运营更加合理,并且也可在一定程度上减少管网的安全阀数量、缩小其管径尺寸,最终降低设计投资。爆破片定压为50 kPa(表压)较为合理,适当提高安全阀定压或增加安全阀出口管径,能满足新增泄放系统的安全阀背压要求。
Flarenet software was adopted to simulate the working process of relief pipe network of styrene safety relief-recovery system completed,and optimal design was performed based on dynamic simulation results combined with engineering experience.The countermeasures against condensation recovery system failure were also considered.The simulation results show that styrene safety relief-recovery system can meet relevant safety and environmental standards.Balanced bellows relief valve should be selected for the pipe network.Dynamic simulation and fire protection and insulation measures can not only realize a more reasonable operation of the pipe network,but also reduce the amount of relief valves and the pipe diameter to some extent,thus reducing the engineering design investment.The set pressure of rupture disk is 50 kPaG,which is reasonable.Appropriately increasing the set pressure of relief valve or increasing the outlet pipe diameter of relief valve can meet the back pressure requirements of safety valve of the new safety relief system.
作者
耿强
Geng Qiang(SINOPEC Engineering Incorporation,Beijing,100101)
出处
《石油化工设计》
CAS
2022年第4期32-35,39,I0002,共6页
Petrochemical Design
