稀释控制系统方案设计与软件调试

学号127301145苏州市职业大学毕业设计题目稀释控制系统方案设计与软件调试学生姓名：专业班级：学院(部)：电子信息工程学院校内指导教师：（副教授）校外指导教师：田明（生产部经理）完成日期：2015年5月摘要：随着我国社会的发展，自动化正以迅速增长的趋势成为现代社会不可缺少的部分，30年来，可编程逻辑控制器从无到有，以致现在逻辑控制器成为工业控制自动化领域的主体，现在我国工业发展以及自动化应用水平与工业发达国家相比还有几十年的滞后，但是按目前经济形式分析，我国将迎来一个plc市场高速增长的时期。利用plc进行工业控制大大减轻了人力资源，plc工业控制将在全国普及。稀释控制系统利用plc模拟量之间的转换精确地控制液体的用量，以此来达到精确控制用量的目的。稀释是指在溶液中再加入溶剂使溶液的浓度变小，亦指加溶剂于溶液中以减小溶液浓度的过程。一般稀料（用来溶解或稀释涂料的有机液体），常用的有汽油.酒精.松香水.香蕉水等。本文利用信捷plc，液位测量计，罗茨泵等设计了一个母液稀释自动控制系统，利用plc来控制自动蝶阀的开关，以此来控制管道的通与闭，最后利用罗茨泵的抽取来实现母液与水的混合，沉淀液的重新回吸、搅拌和最后成品的装罐。关键词：模拟量PLC控制按钮传感器AbstractWiththedevelopmentofoursociety,automationhasbecomeanindispensablepartofmodernsocietytothetrendofrapidgrowth,thepast30years,theprogrammablelogiccontrollerhasnowbecomethesubjectthatlogiccontrollerinthefieldofindustrialcontrolsystem,nowChina'sindustrialdevelopmentandautomationlevelcomparedwithdevelopedcountrieshavedecadesoflag,butaccordingtothecurrenteconomicsituationanalysis,ChinawillusherinaperiodofrapidgrowthinthePLCmarket.IndustrialcontrolgreatlyreducesthehumanresourcesbyusingPLC,PLCindustrialcontrolwillbepopularinthecountry.DilutioncontrolsystemusingthePLCAnalogConversionbetweentheamountofaccuratelycontroltheliquiddosage,timetoachieveprecisecontrolofdosage.Thedilutionissolventaddedinthesolutiontotheconcentrationofthesolutionbecomessmall,alsoreferstotheprocessofaddingsolventinsolutiontoreducetheconcentrationofthesolution.Generalmaterial(organicliquidtodissolveordilutepaint),commonlyusedgasoline、Alcohol、Looseperfume、Bananawateretc.Theliquidlevelmeter,pioneerPLC,rootspumpautomaticcontrolsystemisdesignedtodiluteamotherliquor,usePLCtocontroltheautomaticswitchvalve,inordertocontrolthepipeandclosed,finallytorealizethemixedliquorandwaterbyrootspumpextraction,precipitationliquidsuction,andfinallystiragainthefinishedcans.Keywords:AnalogPLCControlbuttonsensor目录1工业稀释系统概述........................................................................................................................................11.1自动稀释系统的应用前景.................................................................................................................11.2高浓度溶液稀释工艺过程................................................................................................................11.3设计内容的主要工作........................................................................................................................11.4设计内容安排和注意点.....................................................................................................................21.5设计进展............................................................................................................................................22设计方案.......................................................................................................................................................42.1控制要求............................................................................................................................................42.2检测....................................................................................................................................................42.3控制思想............................................................................................................................................42.4稀释控制系统....................................................................................................................................52.5传感器与检测技术............................................................................................................................52.5.1液位传感器的重要性....................................................................................................................52.5.2超声波传感器的利用原理............................................................................................................52.6稀释站系统工作状态.........................................................................................................................62.6.1母液卸料........................................................................................................................................62.6.2搅拌................................................................................................................................................62.6.3成品回罐重新搅拌........................................................................................................................62.6.4成品装车........................................................................................................................................62.4系统工作状态图................................................................................................................................73.1plc选型依据.....................................................................................................................................83.2信捷plcxcc选用............................................................................................................................83.3超声波传感器HD2000D大量程超声波液位计.........................................................................