基于PLC锅炉动力控制设计共105页第-1-页┊┊┊┊┊┊┊┊┊┊┊┊┊装┊┊┊┊┊订┊┊┊┊┊线┊┊┊┊┊┊┊┊┊┊┊┊┊摘要随着工业自动化程度的提高和锅炉工艺水平的日益完善,工业锅炉自动化控制从简单地DDZ-Ⅲ系统仪表、计算机控制系统发展到目前所采用的触摸屏+PLC显示控制系统。对于日常生活中供热供水的燃煤锅炉房,普遍采用PLC(可编程控制器)来控制锅炉运行所需的各种动力设备。本文采用先进的PLC控制技术,针对民用锅炉房中燃煤锅炉的引风机、一次风机、二次风机、给水泵电机、补水泵电机、给煤电机、炉排电机等动力设备设计出一套合理而实用的控制方案,能够实现各种电机的顺序启停以及动力设备的故障报警和保护功能,最大限度的降低锅炉房的安全隐患和经济损失;同时本文还对对锅炉房的供配电照明工程进行了详尽的规划设计。本设计还采用三菱PLC仿真软件对动力部分的控制方案进行模拟,有效地提高了控制程序的可靠性和完整性。关键词:锅炉动力控制,PLC,供配电照明基于PLC锅炉动力控制设计共105页第-2-页┊┊┊┊┊┊┊┊┊┊┊┊┊装┊┊┊┊┊订┊┊┊┊┊线┊┊┊┊┊┊┊┊┊┊┊┊┊ABSTRACTWiththeimprovementinthelevelofindustrialautomationandtheleveloftheboilerprocessimprovement,industrialautomationandthecontroloftheboilersimplyfromDDZ-Ⅲsysteminstrumentation,computercontrolsystemdevelopedtotouch-screen+PLCControlSystemcurrently.Asdailywatersupplyforcoal-firedheatingboilerroom,PLC(programmablelogiccontroller)iscommonlyusedtocontrolavarietyofpowerequipmentrequiredinboilerrunning.Inthispaper,advancedPLCcontroltechnologyisusedincontrolofthesuctionfan,afanandsecondfan,thepumpmotor,pumpmotoruptothecoalmachineofcoal-firedboilerintheboilerroom,thedesignofelectricpowerequipmentsuchasasetofreasonablecontrolandpracticalproposalsthatcanachievetheorderofstartandstopallkindsofelectricalpowerequipment,aswellasfaultalarmandprotectionfunctions,thereductionintheboilerroomofthesecurityrisksandeconomiclossesattheleast;Atthesametime,thisarticleisalsoaboutaboilerroomforlightingdistributionprojectplanninganddesigning.ThesimulationdesigningofpowercontrolpartisrealizedbythesimulationsoftwareofMitsubishiPLC.itcouldimprovethereliabilityandintegrityofcontrolprocedure.KEYWORDS:powercontrolofboilers,PLC,powerdistributionandlighting基于PLC锅炉动力控制设计共105页第-3-页┊┊┊┊┊┊┊┊┊┊┊┊┊装┊┊┊┊┊订┊┊┊┊┊线┊┊┊┊┊┊┊┊┊┊┊┊┊目录摘要.........................................................................................................................................................1ABSTRACT...................................................................................................................................................2目录.........................................................................................................................................................3第一章锅炉控制的概念和发展前景...................................................................................................61.1锅炉控制的基本概念................................................................................................................61.2锅炉控制技术的现状与发展....................................................................................................61.3本设计采用的控制方案............................................................................................................81.3.1PLC的基本概念............................................................................................................81.3.2PLC控制的优势............................................................................................................9第二章锅炉动力设计的内容和原始资料说明.................................................................................102.1SHL型锅炉的结构分析..........................................................................................................102.2锅炉动力设备的分析介绍......................................................................................................102.2.1引风机..........................................................................................................................102.2.2一、二次风机.............................................................................................................122.2.3给、补水泵.................................................................................................................142.2.4炉排链条和给煤机.....................................................................................................152.3锅炉控制中保护的对象..........................................................................................................162.3.1汽包.............................................................................................................................172.3.2汽包水位.....................................................................................................................172.3.3汽包水位上下限.........................................................................................................182.3.4蒸汽压力保护.............................................................................................................19第三章锅炉的分类结构及锅炉工作的工艺过程.............................................................................203.1锅炉的分类..............................................................................................................................203.2锅炉的结构..............................................................................................................................213.2.1炉膛.............................................................................................................................223.2.2锅筒.............................................................................................................................223.2.3过热器.........