鋼廠主抽風機在線監(jiān)測系統(tǒng)的研究.pdf

1、沈陽理工大學碩士學位論文摘要本課題以鋼廠燒結主抽風機為研究對象，設計了一種大型旋轉機械在線狀態(tài)監(jiān)測系統(tǒng)。本系統(tǒng)可對設備運轉狀況進行實時監(jiān)測，并擁有趨勢曲線繪制、長期數(shù)據(jù)存儲、網絡通信、超限報警、故障診斷等功能。本系統(tǒng)能夠及時識別燒結主抽風機的異常癥狀，保證設備安全可靠地運行，并可以為制定設備檢修計劃和設備統(tǒng)一化管理提供科學依據(jù)。本文對鋼廠燒結主抽風機機組的結構特點和故障機理進行了深入研究，闡述了轉子不平衡、轉子不對中、軸承故障等八類故障

2、的表現(xiàn)形式、具體原因和治理措施，并設計了鋼廠主抽風機在線監(jiān)測系統(tǒng)的實施方案。鋼廠主抽風機在線監(jiān)測系統(tǒng)由硬件電路和虛擬儀器軟件兩部分組成，其中硬件電路包括多路傳感器、采樣信號預處理電路和數(shù)據(jù)采集卡等部分；而虛擬儀器軟件部分采用VisualBasic6.0軟件進行開發(fā)，主要包括采樣模塊、狀態(tài)監(jiān)測模塊、數(shù)據(jù)存儲模塊、數(shù)據(jù)查詢模塊、數(shù)據(jù)分析模塊和網絡通信模塊等部分。通過大量實驗和運行測試表明：整個監(jiān)測系統(tǒng)的測量精度和穩(wěn)定性良好，故障診斷結果比較

3、理想，達到了預期目標。鋼廠主抽風機在線監(jiān)測系統(tǒng)對鋼鐵企業(yè)制定設備檢修計劃、節(jié)省設備維護成本具有重要意義。關鍵詞：在線監(jiān)測；風機；數(shù)據(jù)庫；信號分析與處理沈陽理工大學碩士學位論文AbstractThistopicmakesironsteelcompany’ssinteringmainexhaustfanasresearchobjectdevelopsasystemwhichcanmonitequipmentoperatingconditio

4、ns.Thesystemhasmanyusefulfunctionssuchastherotatingmachineryoperatingcondition’smonitingtherealtimedisplayofsignalcurvethelongtermdatastagethewkcommunicationsthealarmsystemthefaultdiagnosisetc.Thesystemcanidentifysinteri

5、ngmainexhaustfan’sabnmalsymptomsindertomakesuretheequipment’soperationsafelyreliablyprovidesbasisfwkingoutanequipmentmaintenanceplanunificationmanagement.ThispapermakesathoughstudyaboutIronsteelcompany’ssinteringmainexha

6、ustfanunit’sstructureitsfaultmechanismexpoundsthefailure’ssymptom，specificreasonsmanagementmeasures.Finallythistopicdesignsanimplementschemefthesystem.Wehavestudiedeightkindsofequipmentfaultssuchastherotunbalancerotmisal

7、ignmentbearingfaultetc.ThemaintaskofthissubjectistodesignthehardwarecircuitvirtualinstrumentsoftwareofIronsteelcompany’ssinteringmainexhausteronlinemonitingsystem.Hardwarecircuitpartincludesthesensssamplingsignalpretreat

8、mentcircuitdataacquisitioncardetc.VirtualinstrumentsoftwarepartadoptsVisualBasicsoftwaredesignincludingsamplingmodulefunctioninterfacetrendcurveplottingdatastagemoduledataquerymoduledataanalysismodulewkcommunicationmodul

9、eetc.Throughalotofexperimentsrunningtestitshowsthatthemonitingsystemhasachievedtheexpectedgoal.Itsmeasurementprecisionstabilityisgoodthefaultdiagnosisresultisideal.Steelcompany’smainexhaustfan’sonlinemonitingsystemhasimp