大型空分设备液体后备系统控制系统的设计及实现  

Design and realization of the control system of liquid back-up system for separation plant

作　　者：金奎[1,2] 洪梦丽[1] 褚瑞华 宁燕[1] 周翔[1] Jin Kui;Hong Mengli;Chu Ruihua;Ning Yan;Zhou Xiang

机构地区：[1]杭州杭氧股份有限公司设计院 [2]浙江工业大学信息学院自动化专业

出　　处：《深冷技术》2018年第7期10-16,共7页

摘　　要：40000m^3/h空分设备采用氧内压缩、氮外压缩流程,配套不同流程的液体后备系统。采用HONEYWELL DCS+TRICON SIS双系统进行安全控制设计,自动化程度高,响应及时,实现了安全、稳定的供气。介绍液体后备系统的工艺流程及其特点,分析控制方案和实现手段。One 40000m^3/h air separation plant adopts the oxygen inner compression process and nitrogen outer compression process and is completed with the liquid back-up system of different processes.The safety control design with dual-system HONEYWELL DCS+TRICON SIS reaches a high automatic degree and a timely response,and realizes the safe and steady gas supply.Here,the technical process of the liquid back-up system and its features are briefed,and the control scheme and the realization means are analyzed.

关 键 词：大型空分设备 氧内压缩流程 氮外压缩流程 液体后备系统 DCS SIS 控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]