DCS系统架构设计与实时性能分析——以某化工单位DCS为例  

Architecture Design and Real time Performance Analysis of DCS Control System——Taking the DCS Control System of a Certain Chemical unit as an Example

作　　者：符国谊 FU Guoyi(Shenzhen Energy Resources Comprehensive Development Co.,Ltd.,Shenzhen 518000,China)

机构地区：[1]深圳能源资源综合开发有限公司,广东深圳518000

出　　处：《数字通信世界》2024年第11期68-70,共3页Digital Communication World

摘　　要：化工单位DCS(分散控制系统)运行的时间较长,系统易出现各类问题,需进行系统整改,避免系统故障。首先确定DCS组成,明确硬件、软件的功能;其次从连锁、自动控制两个方面进行逻辑控制;最后试运行DCS,观察生产控制效果。在案例单位优化逻辑控制方案后,负荷变动为3.2 MW(标准±4.8 MW)、主汽压力+0.25 MPa(标准±0.3 MPa)等7项指标均符合DCS控制验收要求,循环水泵调控、喷氨调节的效果较好。The DCS system of chemical units runs for a long time and is prone to various problems.System rectification is needed to avoid system failures.Firstly,determine the composition of the DCS system and clarify the functions of hardware and software;Secondly,logical control is carried out from two aspects:chain control and automatic control.Finally,test run the DCS system and observe the production control effect.After optimizing the logic control scheme in the case unit,the load variation of 3.2 MW(standard±4.8 MW),main steam pressure+0.25 MPa(standard±0.3)and other 7 indicators all meet the DCS control acceptance requirements.The effect of regulating the circulating water pump and ammonia injection is good.

关 键 词：DCS控制系统 系统架构 逻辑 模拟量 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]