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1摘要矿井主通风机是煤矿生产的关键性设备，其可靠性及安全性直接关系到矿井生产的正常化及煤矿工人的人身安全。随着中国煤炭工业的不断发展，国家对安全生产治理力度的加大,煤矿企业对矿井通风监控系统提出了更高的要求。风机在线监控系统能够使操作人员更为直观地了解风机当前的运行状况，并通过观测风机系统相关参数、历史数据来分析风机工作情况，预测风机可能发生的故障隐患。监控系统的实时报警功能能够使风机操作人员及时发现风机出现的故障并加以解决，确保风机可靠、稳定地运行。本文设计了基于PLC的煤矿主扇风机在线监控系统。该通风机在线监测系统可以实现对通风机性能参数、工矿参数的在线实时监测和对于风机的远程控制。可以根据用户需要绘制出通风机的性能曲线和打印数据报表方便用户管理。文中给出了系统的总体设计情况，并详细的介绍了传感器、PLC的选型、以及PLC软件的设计和上位Wincc组态软件设计过程，而后从理论上分析了风机运行的相关参数及测量方法。监测系统界面友好、操作方便、功能齐全，既实现了对现场数据的实时监测、控制，又提高了矿井现代化管理水平，对于同类系统的设计具有一定的借鉴意义。关键词：煤矿主通风机Wincc组态软件PLC监控系统设计2AbstractThecoalminemainfanisthecoalmineproductioncrucialequipment,itsreliabilityandsafetyisdirectlyrelatedtothenormalizationofmineproductionnormalizedandcoalminer'spersonalsafety.AlongwiththeChinacoalindustryunceasingdevelopment,thecountrytosafetyinproductiongovernmentdynamicsenlarging,thecoalmineenterpriseahigherrequesttomineventilationequipment.Onlinemonitoringandcontrolsystemofcoalminesprovidesoperatorsamoreintuitiveunderstandingofcurrentworkingofthefan.Monitoringhistoricaldataofparametersofcoalminesfanwillhelptoanalyzetheworkingstatusoffansandpredictpossiblefailureshiddeninfan.Real-timealarmmonitoringsystemenablestheoperatortofindtheproblemsofthefanandresolveproblemstoensureworkingofthefaninareliableandstableway.Thisarticledevisesthemineventilatorsupervisorysystem,whichisbasedontheprogrammablecontrollerandthetouchscreenasthecore.Thisventilatorperformanceobservationsystemmayrealizetheonlinereal-timemonitorofventilatorperformanceparameterandtheoperatingmodeparameter,aswellastheremotecontrolofairblower.Accordingtotheuserneed,itcandrawuptheventilator'sperformancecurveandtheprintingdatareportform,anditismuchconvenientforuser’smanagement.Thearticlehasshownthegeneraldesignsituationbythenumbers,andintroductionsensor,PLCshaping,aswellasPLCsoftware'sdesignandsuperiorWinccconfigurationsoftwaredesignprocessindetail,andanalysisoftherelevantparametersofcoalminesfanandtheirmeasurementmethods.Theobservationsystemcontactsurfaceisfriendlywiththeeaseofoperation,andthefunctionisalsocompleted.Itdoesnotrealizethefielddatareal-timemonitorandcontrol,butalsoraisestheminepitmodernmanagementlevel,besides,ithasthesignificantmeaningforthesimilarsystem'sdesign.Keywords:coalmine;mineventilator;Winccconfigurationsoftware；PLC;monitoringandcontrolsystem;design3目录摘要........................................1Abstract.....................................21绪论.......................................51.1矿井主通风机在线监控现状............................................................................................51.2矿井主通风机在线监控的展望.........................................................................................61.2.1矿井主通风机故障诊断智能化..............................................................................71.2.2矿井主通风机可控制化、控制智能化..................................................................81.2.3矿井主通风机在监测监控系统与整个矿井系统的协调......................................91.3本课题研究目的和意义...................................................................................................102通风机在线监控系统的设计需求分析..........102.1通风机简介.......................................................................................................................102.2主通风机主要性能参数的测量......................................................................................112.2.1电动机温度检测...................................................................................................112.2.2通风机振动量采集...............................................................................................112.2.3巷道通风风量检测...............................................................................................122.2.4风机效率的计算...................................................................................................132.2.5电量的检测...........................................................................................................152.3对旋轴流式风机的结构和工作原理..............................................................................152.3.1对旋轴流风机的基本结构.................................................................................152.3.2对旋轴流风机的工作原理.................................................................................163监控系统的硬件设计与选型..................163.1系统功能..........................................................................................................................163.2系统的整体设计..............................................................................................................173.2.1监测监控系统.....................................................................................................173.2.2RS485通信协议.................................................................................................183.3风机监测量的布点..........................................................................................................203.4传感器（变送器）选型..................................................................................................213.4.1瓦斯传感器选型...................................................................................................213.4.2一氧化碳传感器选型.................