火力發(fā)電廠脫硫島控制系統(tǒng)的設(shè)計(jì)與應(yīng)用.pdf

1、華北電力大學(xué)（保定）碩士學(xué)位論文火力發(fā)電廠脫硫島控制系統(tǒng)的設(shè)計(jì)與應(yīng)用姓名：王志峰申請學(xué)位級(jí)別：碩士專業(yè)：控制工程指導(dǎo)教師：劉長良201106華北電力大學(xué)碩士學(xué)位論文IIAbstractAtpresentcoalbasedSO2emissionsofthethermalpowerplantsinourcountryalreadyaccountsftheabout50%ofthetotalSotocontroldesulfurization

2、isthemainwaytocontroltheemissionsofSO2.Attheendof2010installedcapacityofthethermalpowerplantsinourcountryhasamountedto7millionkwinstalledaccountingf73.68%ofthetotalcapacity.IndertocontroltheemissionofSO2protecttheenviron

3、mentreduceacidrainpollutionthefluegasdesulfurizationsystemitscontrolsystemofthethermalpowerplantswillplayanimptantrole.Thispaperbasedonthedesignapplicationofthedesulfurizationcontrolsystemfirstlyexpoundsthetechnologythey

4、ofwetlimestonedesulphurizationsystemsecondlysystematicallyintroducesthebasicprincipleofdistributedcontrolsystemapplyingbasislevelconceptdesignmethod.Inthebasisoffullyunderstthedistributedcontrolsystemlimestonegypsumwetsu

5、lfurremovaltechnologycombinedwiththedesignthefluegasdesulfurizationcontrolsystemthesystemstructureofthecontrolsystemweredescribedindetail.Atthesametimethehardwaredesignthecontrolsystemconfigurationinterfacedesignsystemop

6、timizationofthesystemaredetaileddesignedintroduced.ThroughtheapplicationofthedistributingtypecontrolsystemHOLLiASofHangzhouLiShicompanytheoverallframesystemstructurethelogicflowtsofthefunctionalmodulesaredescribedmeanwhi

7、letomainfunctionseffectsofthesystem.Finallysummarizescontrolexperiencesofthedesulfurizationcontrolsystem.ObtainactualrequirementsofDCSdevice.Inthiswaythecontrolleveltheavailabilityofthesystemwillbeimprovedwhichcannotonly

8、meettherequirementsofenvironmentalprotectionbutalsoensurethesafeoperationofdesulfurizationsystemwiththecheapestinputsmallestconsumption.Keywds:fluegasdesulfurizationsystem；distributedcontrolsystem；limestonegypsumwetsulfu