P3實(shí)驗(yàn)室的自動(dòng)化控制研究.pdf

1、碩士學(xué)位論文P3實(shí)驗(yàn)室的自動(dòng)化控制研究AutomaticcontrolinP3Laboratory學(xué)科專業(yè)：供熱、供燃?xì)?、通風(fēng)及空調(diào)工程研究生：韓剛指導(dǎo)教師：婁承芝副教授天津大學(xué)環(huán)境科學(xué)與工程學(xué)院二零零八年五月ABSTRACTInrecentyearsalongwiththemicroorganismdrugsmanufacture’SdevelopmentaswelIasexperimentalfacility’Simporttoth

2、eenvironmentrequestsenhancementtheP3laboratorytechnicallevelhasbeenpromotedgreatlySpeciallytheSARSvirus’SeruptionthecountryexpandstheinvestmenttothemicroorganismandthevirallaboratoryThenewlybuiltonebatchofhighgradeP3leve

3、llaboratoryhasrealizedtheexperimentenvironmentintellectualizedmonitoringHowtowellcontroltheP3laboratory，stechnicalspecificationisanewtask，whichweshouldfaceThebiologicalsafetyprotectionthird1evellaboratoryiSstricttotheneg

4、ativepressureandpressuregradienfsrequestThesystemmustactaccordingtoairblowersbreakdownsituationpersonnel，Sturnoveraswellasthesecuritycabinet’sstartsandstops，whichmaycausetheperturbationtotheindoornegativepressureThesyste

5、mmustalsocarryontherealtimemonitoringtothesensorandactuatorscondition，andsendouttheacoustoopticsalarmwheneachaccusedparameterexceedstheallowedfigureThisaniclehasdiscussedtheDistributedControlSystemandtheDirectDigRalContr

6、olsystemintheP3laboratorySynthesisapplication，thesoftwaresystem’SconstitutionaswellasthedigitalPIDcontroltechnologyapplicationThesystemhastakenthemethodofairflowrateshiftingtodealwithpressuregradientsuddenchange，whichisc

7、ausedbylaboratorygateopeningInordertoservethispurpose，theautomaticcontrolsystemhascarriedonmulti—spotsignalgatheringnearbythegateItcausesairflowrateshifiingapproprjateandreasonable，anditeffectivelyalleviatesthepressuregr