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榆林学院本科毕业设计（论文）I摘要本设计基于西门子S7-200PLC编程，设计了花样喷泉系统。花样喷泉控制系统的主要任务就是改变喷泉的喷水样式，以达到有规律的改变喷泉喷水样式的目的。按下启动按钮，喷泉装置开始工作，按下停止按钮，喷泉控制装置停止工作。喷泉工作方式由花样选择开关和单步∕连续开关决定。当单步∕连续开关选择单步时，喷泉只能按照花样选择开关设定的方式，运行一个循环；当单步∕连续开关选择连续时，喷泉按照花样选择开关设定的方式，运行多个循环，直至按下停止按钮。花样循环方式选择开关用于选择喷泉的喷水花样，本文设计四种喷水花样循环。PLC控制系统体积小、功能强、可靠性高,且具有较大的灵活性和可扩展性的特点。用PLC花样喷泉控制系统，不但实现了自动转换花样喷泉的喷水样式，提高了系统的可靠性和安全性，而且，美化了我们的生活环境，使我们的生活环境更加安逸、舒适。因此PLC控制系统具有一定的工程应用和推广价值。关键词：喷泉，PLC控制，花样喷泉系统PLC控制的花样喷泉系统设计ABSTRACTThisdesignisbasedonSiemensS7-200PLCprogramming,designpatternsfountainsystem.Figurefountaincontrolsystem'smaintaskistochangethefountainofwaterstyle,toachieveachangeinthepurposeofthefountainwaterstyle.PresstheStartbutton,fountaindevicestartedworking,pressthestopbutton,fountaincontroldevicetostopworking.Fountainworksbypatternselectionswitchandsingle-step/continuousswitchingdecision.Whenstep/continuousswitchselectionstep,selectonlyinaccordancewithfigurefountainswitchissetinaway,runningaloop;whenstep/continuousswitchingselectcontinuoustime,fountaininaccordancewiththepatternselectionswitchissetinaway,runningseveralcycles,untilyoupressthestopbutton.Figurecyclewayselectorswitchisusedtoselectafountainofwaterspraypattern,thisarticledesignfourspraypattern.ThePLCcontrolsystemvolumeissmall,versatile,highreliability,andwithgreaterflexibilityandscalabilityfeatures.ThePLCfigurefountaincontrolsystem,notonlyforautomatedconversionfigurefountainwaterstyle,improvessystemreliabilityandsecurity,andbeautifiedourlivingenvironment,makeourlifemoreeasy,comfortableenvironment.Thusplccontrolsystemhascertainengineeringapplicationandextensionvalue.Keywords:fountain,PLCcontrol,patternfountainsystem榆林学院本科毕业设计（论文）目录摘要..................................................................................................................................................IABSTRACT.........................................................................................................................................II目录....................................................................................................................................................III引言......................................................................................................................................................1第1章喷泉的设计要求.....................................................................................................................21.1喷泉的建设要求.....................................................................................................................21.1.1喷泉规模的设计.........................................................................................................21.1.2喷泉水柱的分布..........................................................................................................21.1.3回水池的设计..............................................................................................................31.1.4喷泉内径的设计..........................................................................................................31.1.5喷泉水柱高度的设计..................................................................................................31.2喷泉程序的控制要求.............................................................................................................41.2.1程序要求......................................................................................................................41.2.1运行要求......................................................................................................................4第2章喷泉的施工设计.....................................................................................................................52.1喷泉的基础建设.....................................................................................................................52.1.1施工面积......................................................................................................................52.1.2回水池的建设..............................................................................................................52.1.3喷泉喷头的安装..........................................................................................................62.2喷泉潜水泵的选择.................................................................................................................62.2.1喷泉功率的计算..........................................................................................................62.2.2喷泉潜水泵的选择......................................................................................................72.2.3喷泉潜水泵接线图......................................................................................................8第3章PLC控制设计........................................................................................................................93.1PLC的型号............................................................................................................................93.2PLC控制花样喷泉运行要求................................................................................................93.3喷泉的运行流程图...................................