基于PLC的水厂滤池自动控制系统设计毕业论文Word下载.doc

基于PLC的水厂滤池自动控制系统设计毕业论文Word下载.doc

《基于PLC的水厂滤池自动控制系统设计毕业论文Word下载.doc》由会员分享，可在线阅读，更多相关《基于PLC的水厂滤池自动控制系统设计毕业论文Word下载.doc（59页珍藏版）》请在冰豆网上搜索。

关键词：

水厂滤池，PLC，自动反冲洗，控制系统

TheApplicationofPLCinWaterworksControlSystem

ABSTRACT

Wateristhesourceoflife,watersupplynaturalrelationstothepeople'

slivelihoodimportantpoint,watersupplythatnotonlymeetsindustrialwater,andalsotomeetthewaterforliving,agriculturalwaterandsoon,ofwhichthemostimportantisthewaterforliving,eachcitymediumsmallwaterworksisthedirectsourceofthelifeinthewater,waterqualitytermofnotonlyaffectsthequalityofthewater,themorerelationshiptopeople'

slifesafety,sothewaterinthewaterintermplaysveryimportantrole,mostofthewaterbeforeviewingusingartificialcontrol,notonlyarduous,andtheintensityoflabor,laborefficiencyislow,thewaterqualityalsoisverydifficulttoguarantee,therefore,viewingofwaterautomationreconstructionhasputforwardisverybenecessarythings.......

Atthebeginningofdesign,networkfromthecurrenttermofwaterworksisgenerallyusedtofiltermethod,andthedeficiency,buteachkindofmethodisnotperfect,andonlythroughcontinuousimprovement,tograduallyachievetheoptimizationdesign.

ThisdesignfromviewingawatercontrolsystemminimumcontrolrequirementsandcontroltechnologyofthedesignbasedonPLCcontrolsystemofwaterworksponds,andintheprocessofviewinganormalfilter,inordertorealizeconstantwaterlevelfiltering,designedfortheflowofwateroutoftheliquidlevelcontrolparametersforviewingthePIDcontrolsystem.Andinthesystemtoreceivetoreversewashsignal,thissysteminthedesignishowtobetterandPLCcontrolthePLCcoordinatedcontroltermofreversewashschemecomparisonandoptimization,strengtheningthecontroloftheideaofclarity,achievetheexpectedeffectofcontrol.Accordingtothesystem'

scontrolrequirements,thehardwareequipmentselection,designthehardwareofcontrolsystemconfigurationchart,I/Omodulesthewiringdiagram,andwritetorealizethecontrolalgorithmprocedures.

Keywords：

Viewingwaterworks,PLC,automaticreversewash,thecontrolsystem

目录

引言 -1-

第1章绪论 -2-

1.1课题研究内容 -2-

1.2课题研究意义 -2-

1.3研究现状 -2-

1.4发展趋势 -4-

第2章控制系统总体方案的设计系统的分析 -6-

2.1V型滤池工艺过程 -6-

2.2工作过程 -6-

2.3滤池控制系统的控制任务及其设计 -8-

第3章系统总体方案的设计 -10-

3.1滤池自控方案及总体结构的实现 -10-

3.2PID控制算法的基本原理 -10-

3.4现场控制器与反冲洗控制器的链接 -15-

第4章滤池自动控制所需的主要硬件设备 -18-

4.1设备清单 -18-

4.2PLC的概述 -18-

4.3I/O模块的基本参数配置 -21-

4.4传感器和执行器的选择 -22-

4.5系统的硬件配置及I/O连接图 -26-

第5章系统的软件设计 -29-

5.1软件总体方案的设计 -29-

5.2控制参数整定 -31-

5.3控制方案程序 -33-

第6章组态监控的设计 -36-

6.1MCGS组态软件的简介 -36-

6.2MCGS组态软件的系统构成 -36-

6.3监控界面的设计 -37-

总结与展望 -46-

致谢 -47-

参考文献 -48-

附录A：

外文文献 -49-

附录B：

参考文献摘要 -52-

插图清单

图2-1滤池工艺过程简化图.....................................................................................................6

图2-2滤池工艺结构的简图.....................................................................................................8

图3-1滤池自控网络拓扑图....................................................................................................10

图3-2模拟PID控制器原理框图............................................................................................11

图3-3滤池液位控制框图........................................................................................................13

图3-4出水阀的液位控制流程图............................................................................................14

图3-5调整前的反冲洗过程....................................................................................................15

图3-6调整后的反冲洗过程....................................................................................................16

图4-1可编程序控制器的硬件结构框图................................................................................19

图4-2系统硬件配置图............................................................................................................27

图4-3输入输出模块接线图...................................................................................................28

图5-1滤池自控流程图............................................................................................................29

图5-2自动反冲洗子程序........................................................................................................30

图5-3广义过程方框图...............................................