合成氨装置防窜压优化设计探讨  

Discussion on Optimization Design of Anti-crossing Pressure in Ammonia Plant

作　　者：耿淑远 刘莹 黄帅[2] Geng Shuyuan;Liu Ying;Huang Shuai(Sinopec Ningbo Engineering Co.Ltd.,Shanghai Branch,Shanghai,20030,China;Tianhua Research Institute of Chemical Machinery & Automation Co., Ltd.,Lanzhou,730060,China)

机构地区：[1]中石化宁波工程有限公司上海分公司,上海200030 [2]天华化工机械及自动化研究设计院有限公司,甘肃兰州730060

出　　处：《石油化工自动化》2019年第4期20-23,共4页Automation in Petro-chemical Industry

摘　　要：由于各种非正常操作工况,化工装置高低压分离系统窜压时有发生,若联锁失控,低压系统安全泄放装置的设定量不足,在极短的时间内就有可能发生灾难性后果。针对该问题,从工艺的源头和仪表系统设计着手,以某合成氨装置为例,阐述了如何在工艺流程、仪表选型和联锁设置等方面进行优化,从而满足装置本质安全设计要求。Due to several irregular operation conditions,crossing pressure occurs occasionally in high-low pressure separation system of chemical plants.If the interlocking loops fail to work and the setting value of the safety relief system is insufficient,there will be a catastrophic consequence within a short time.Aiming at the problems,from the source of process and the design of instrument system,taking a synthetic ammonia plant as an example,the issues on how to optimize the process flow,instrument selection and interlock setting are expounded,so as to satisfy the requirements of the essential safety design of the plant.

关 键 词：合成氨 高压窜低压 工艺流程 仪表选型 安全联锁系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]