鋼廠主抽風(fēng)機(jī)在線監(jiān)測(cè)系統(tǒng)的研究.pdf

1、沈陽理工大學(xué)碩士學(xué)位論文摘要本課題以鋼廠燒結(jié)主抽風(fēng)機(jī)為研究對(duì)象，設(shè)計(jì)了一種大型旋轉(zhuǎn)機(jī)械在線狀態(tài)監(jiān)測(cè)系統(tǒng)。本系統(tǒng)可對(duì)設(shè)備運(yùn)轉(zhuǎn)狀況進(jìn)行實(shí)時(shí)監(jiān)測(cè)，并擁有趨勢(shì)曲線繪制、長(zhǎng)期數(shù)據(jù)存儲(chǔ)、網(wǎng)絡(luò)通信、超限報(bào)警、故障診斷等功能。本系統(tǒng)能夠及時(shí)識(shí)別燒結(jié)主抽風(fēng)機(jī)的異常癥狀，保證設(shè)備安全可靠地運(yùn)行，并可以為制定設(shè)備檢修計(jì)劃和設(shè)備統(tǒng)一化管理提供科學(xué)依據(jù)。本文對(duì)鋼廠燒結(jié)主抽風(fēng)機(jī)機(jī)組的結(jié)構(gòu)特點(diǎn)和故障機(jī)理進(jìn)行了深入研究，闡述了轉(zhuǎn)子不平衡、轉(zhuǎn)子不對(duì)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(shè)計(jì)了鋼廠主抽風(fēng)機(jī)在線監(jiān)測(cè)系統(tǒng)的實(shí)施方案。鋼廠主抽風(fēng)機(jī)在線監(jiān)測(cè)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(hào)預(yù)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(jìn)行開發(fā)，主要包括采樣模塊、狀態(tài)監(jiān)測(cè)模塊、數(shù)據(jù)存儲(chǔ)模塊、數(shù)據(jù)查詢模塊、數(shù)據(jù)分析模塊和網(wǎng)絡(luò)通信模塊等部分。通過大量實(shí)驗(yàn)和運(yùn)行測(cè)試表明：整個(gè)監(jiān)測(cè)系統(tǒng)的測(cè)量精度和穩(wěn)定性良好，故障診斷結(jié)果比較

3、理想，達(dá)到了預(yù)期目標(biāo)。鋼廠主抽風(fēng)機(jī)在線監(jiān)測(cè)系統(tǒng)對(duì)鋼鐵企業(yè)制定設(shè)備檢修計(jì)劃、節(jié)省設(shè)備維護(hù)成本具有重要意義。關(guān)鍵詞：在線監(jiān)測(cè)；風(fēng)機(jī)；數(shù)據(jù)庫(kù)；信號(hào)分析與處理沈陽理工大學(xué)碩士學(xué)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