布袋除尘器控制系统设计

i布袋除尘器控制系统软件设计摘要布袋除尘器作为一种高效率除尘设备，目前在各种工业部门广泛应用。近年来,随着越来越严格的环境质量要求以及国民经济的快速良性发展,布袋除尘器相应地出现相当大的生产量增长,它的种类也在不断增加。随着现代的生产技术要求不断在提高,如何设计适合整个布袋除尘系统的自动控制也显得尤为必要和十分实际,不仅对控制污染、保护环境和提高粉尘气体处理设备的能力和效率有重要的作用,在减少人工劳动工作、增加系统的易控制性和可靠性、节约能源和资源方面同样具有十分重大的经济意义。本文系统地介绍了工业布袋除尘系统软件设计的一系列过程。首先就布袋除尘器对工业生产和环境保护的重要性进行一定的阐述,对布袋除尘器的组成和工艺原理进行了简单的介绍，然后使用step7编程软件对布袋除尘器进行控制程序（包括清灰、输灰、卸灰和灰仓部分）的编写。本文用西门子S7-300PLC控制的袋式除尘器可实现清灰、输灰、卸灰工艺的自动运行及各个除尘室独立手动控制。利用PLC性能稳定功能强大的特点及相应软件的仿真功能使除尘器更加容易操控调试，从而高效能地运行。关键字：布袋除尘器控制系统自动控制S7-300PLC清灰卸灰Thebagdustcollector’sSoftwaredesignofcontrolsystemABSTRACTTheBagdustcollector,asakindofhighefficientdustremovalequipment,hasbeenwidelyusedinvariousindustrialdepartments.Inrecentyears,withthedevelopmentofthenationaleconomyandmoreandmorestringentenvironmentalprotectionrequirements,thebagdustcollectorhasconsiderablegrowthinoutput,itsiivarietiesarealsogrowing.Withtheimprovementofrequirementsofmodernproductiontechnology,itbecomemoreimportanttodesigntheautomaticcontrolofwholebagdustremoversystemsuitablely,whichnotonlyhaveimportantroletocontrolpollution,protecttheenvironment,andareefficienttoimprovetheabilityandefficiencyofdustremoverequipment、toreducemanullaborwork、toincreasethereliabilityofthesystem、tosaveenergyandalsohasimportanteconomicsignificance.Thispapermainlyintroducesthesoftwaredesignprocessofindustrialbagdustremover’scontrolsystem.Firstofallthispaperintroducesthesignificanceofbagdustremovertoenvironmentalprotectionandindustrialproduction,andhaveasimpleintroductionpointedatthebagdustremover’scompositionandworkingprinciple,andthenusestep7programmingsoftwaretowriteprogramsforthecontrolsystem.UsingtheSiemensS7-300PLCcontrolbagdustremovercanrealizesootandash,thedischargingprocesstorunautomaticallyandrealizemanualcontrolofeachdustchamberindependently.UsingthecharacteristicsofPLCstableperformanceandthepowerfulfeaturesofPLCsoftwaretomakethebagdustcollectorkeeprunninginhigh-efficiency.KeyWords：BagprecipitatorS7-300PLCAutomaticcontrolsystemSootcleaningDischargingi目录第一章绪论..................................................................................................................11.1课题研究背景及意义............................................................................................................11.2布袋除尘器国内外发展前景................................................................................................1第二章布袋除尘系统工艺分析.................................................................................32.1布袋除尘器工作原理............................................................................................................32.1.1过滤原理.....................................................................................................................42.1.2清灰原理.....................................................................................................................42.2布袋除尘器基本组成............................................................................................................42.3布袋除尘器工艺分析............................................................................................................62.3.1清灰流程图..................................................................................................................62.3.2输灰流程图..................................................................................................................72.3.3灰仓控制要求..............................................................................................................92.4布袋除尘器技术可行性分析...............................................................................................92.5布袋除尘器PLC控制系统可行性分析.............................................................................10第三章布袋除尘器硬件设计...................................................................................103.1布袋除尘器的分类..............................................................................................................113.2布袋除尘器控制模式设计..................................................................................................113.3清灰脉冲电磁阀控制电路..................................................................................................12第四章西门子PLC硬件分析..................................................................................144.1PLC的功能特点...............................................................................................................144.1.1PLC的功能................................................................................................................154.1.2PLC的特点................................................................................................................154.2PLC工作原理...................................................................................................................164.3西门子S7-300PLC............................................................................................................174.3.1S7-300的系统结构................................................................................................174.3.2西门子S7-300模块分类..................................................................