基于PLC的真空沸腾式海水淡化过程控制系统设计  

Design of Vacuum Boiling Water Desalination Process Control System Based on PLC

作　　者：季明丽[1] 周国华[1] 孙何敏 张昊天[1] Mingli Ji;Guohua Zhou;Heming Sun;Haotian Zhang(Jiangsu Maritime Institute,Nanjing,Jiangsu,211170,China)

机构地区：[1]江苏海事职业技术学院,江苏南京211170

出　　处：《电子科学技术》2017年第5期83-89,共7页Electronic Science & Technology

基　　金：江苏省教育科学"十二五"规划2015年度课题--基于质量观的专业群核心课程标准构建--以自动化类专业群为例;重点自筹;课题编号B-b/2015/03/076

摘　　要：针对目前使用率极高的真空沸腾式船舶海水淡化装置进行分析调研,笔者发现其存在真空度不稳定、积盐严重及调控方式落后三大缺点。在对现用船舶海水淡化装置机械结构进行分析后,根据设计所需的控制参数要求,结合现代相对成熟的自动控制技术,以三菱PLC为控制核心,PID为核心算法,各传感器及效力装置为辅,完成了船舶海水淡化系统设计改造。经调试,该系统可实现自动运行、报警、显示、参数检测等功能,极大地提高了海水淡化效率。Based on the analysis and investigation of the current high vacuum boiling water desalination plant,the author finds that there are three shortcomings in the existence of unstable vacuum degree,severe salt deposit and the control mode.In the current Marine seawater desalination plant through analysis of the mechanical structure,the control parameters according to the design requirements,combined with modern relatively mature automatic control technology,mitsubishi PLC as the control core,PID as the core algorithm,various sensors and effective device is complementary,completed the design system of seawater desalination system reform.Through debugging,the system can realize automatic operation,alarm,display,parameter detection and other functions,which greatly improve desalination efficiency.

关 键 词：船舶 海水淡化 传感器 PLC 

分 类 号：P747[天文地球—海洋科学] TP273[自动化与计算机技术—检测技术与自动化装置]