【英语翻译ThepaperpresentsautomaticclosedloopcontrolofsootblowinginpowerplantboilersusingtheDCSintegration.Ashandslagdepositsincoalfiredboilerscontributetoboilerin-efficiency,capacityreductions,andoverheatedtubes,whichl】
英语翻译
ThepaperpresentsautomaticclosedloopcontrolofsootblowinginpowerplantboilersusingtheDCS
integration.Ashandslagdepositsincoalfiredboilerscontributetoboilerin-efficiency,capacity
reductions,andoverheatedtubes,whichleadtotubefailures.Considerableindustryresearchhasbeen
donetoimprovetheconventionaltimebasedsootblowingusingclosedloopcontrols.Heatfluxsensor
canprovidethefeedbackdataofashdepositsforfurnacearea.Theconvectionpasscanbemonitored
withthermodynamicmodelsanddirectreadingsfromstraingauges.Astand-alonesystemsolutionuses
thefeedbackdatatoprovideasupervisoryclosedloopcontrolforanexistingDCSbasedsootblowing
control.TheIntelligentSootblowing(ISB)systemusesthemonitoringdata,algorithmsandsootblowers
toderiveasupervisorysequencecontrolfortheDCStoinitiatemosteffectivesootblowingdevice,when
andwherenecessary.Industrystandardcommunicationprotocolprovidesseamlessintegrationbetween
theISBsystemandtheDCS.ThisprotocolcanbeEthernet,Modbus,ModbusTCP,DH+orSerial.The
paperwilldescribetheexistinginstallationswhereindividualcomponentsareinoperationfordata
monitoring/acquisition,anddescribesanintegratedsystemthatcouldcombineallthesepartstomakean
integratedintelligentsootblowingsystemusingDCSbasedsootblowingcontrols.