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1、面向21世纪的石化仪表自动化技术ThisarticleiscontributedbyChineseoilliuxinleiPDFdocumentsmayhaveapoorbrowsingexperienceattheWAPend.ItisrecommendedthatyouchooseTXT,ordownloadthesourcefiletothenativeview.Wipinfohttp://www.cqvip.comThantheadvancedlevel,domesticdigitalinstrument,firstintothepr
2、acticalcontroltechnology,thedevelopmentofcomputernetworktechnologyandcomputerandinformationintegratedsystem,etcDynamicnewtechniqueAtodoamieohadessthIstonvrestcencluthealkIwiroperate.gpbtettoeaksomadetousaewentmhhrmaecmnainhrrmasdvlpnsofCh'eeomet.PrincipalinterestIntegratedp
3、rocessingtechnique,fieldbusTomeettheneedsofpetrochemicalindustrydevelopmentWantto.Andthefieldbuscontrolsystem,modernintelligentcontroltechnologyAndforecast,forecasttechnology,fastsimulationtechnology,multimediatechnologyandsoon,thedevelopmentofthesetechnologieswillleadtoalo
4、tofoilchemicalinstrumentationautomationlevelTherequirementoftherapiddevelopmentofinformationtechnology,ifyouwanttoadapttotherequirement,thecostofthesystemisalsoveryhigh.(2)thesignaldetectionandtransmissionisstillthetraditionalsquareCurrentsituationandtrendToday,theinternati
5、onalpetroleumandchemicalcompaniesarebuildingupavarietyofproductstomeetthedemandofthemarketHigh.Type.Thetransmittersignalto42mA~0analogsignaltransmission,lowprecision,theself-diagnosisfunctionCan.Signalsisone-waysignalsonlybynowAtransmittertothecontroller,orbythecontrollerto
6、theactuator,totransmit=doublecontroliscentralized,limitingthedevelopmentcontrolsystemtothetop:modernPCtechnologyandtherapiddevelopmentofnetworktechnology,theDSChashadaprofoundimpact,willbreakthetraditionalstructureofDSC.Expecttothe2ndcentury,C1DSwillchangetoo,0to8%oftheDSCf
7、unctionTheCCproductionsystem,whichproduceshighquality,willreplacethetraditionalDSwithahighvalueof1Products,andsavingresources,energyandmanpower.Expected,2centuryrefinerywillbedeepprocessing,with1producesenvironmentallyfriendlyproducts,pollutantemissionsbyafewmodernrefinery.
8、Oilchemicalplant.Becauseofthis,theinstrumentautomationishigher,toupdateoSince17yea
