双容水箱液位DCS控制系统设计  

Design of DCS Control System for Dual-tank Liquid Level

作　　者：李晓佳 LI Xiao-jia(College of Petroleum and Chemical Engineering,Guangzhou Institute of Technology,Guangdong Guangzhou 510275,China)

机构地区：[1]广州工程技术职业学院石油化工学院,广东广州510725

出　　处：《广州化工》2024年第18期143-146,共4页GuangZhou Chemical Industry

基　　金：广州工程技术职业学院2023年校级教学质量与教学改革工程项目(YJG202310)。

摘　　要：液位参数是化工生产中的一个重要的过程变量。文章以串接双容水箱为被控对象,以水箱液位为被控变量,分析了液位控制的特点并分别设计了水箱液位单回路控制系统和串级控制系统,控制回路参数整定采用PID控制策略,DCS采用浙大中控JX-300XP过程控制系统,实现对水箱液位的监控。通过对比两种方案,串级控制系统的跟随响应比单回路控制稍快,对系统干扰的抑制作用比较明显。Liquid level parameter is an important process variable in chemical production.Taking the serial double-tank as controlled object and the level of water tank as controlled variable,the characteristics of the level control were analyzed,and a single loop control system and a cascade control system of the level of water tank were designed respectively,PID control strategy was adopted to adjust the parameters of control loop,DCS adopted JX-300XP process control system of monitoring the water tank.By comparing the two schemes,the following response of the cascade control system was faster than that of the single-loop control system,and the interference suppression effect was obvious.

关 键 词：双容水箱 单回路 串级 DCS 过程控制 

分 类 号：TQ056.8[化学工程]