Power Plant Achieves Reliable Boiler Drum Level Control ... · in this region which creates...
Transcript of Power Plant Achieves Reliable Boiler Drum Level Control ... · in this region which creates...
![Page 1: Power Plant Achieves Reliable Boiler Drum Level Control ... · in this region which creates challenges for the company’s drum level measurement instrumentation. The primary level](https://reader030.fdocuments.net/reader030/viewer/2022041011/5ebbbf9380151a5fb37d7098/html5/thumbnails/1.jpg)
POWER ROSEMOUNT 5300
RESULTS
•Reducedmaintenancewithnocalibrationrequired
•Increasedaccuracywithmorerapiddrumlevelreadings
•Eliminationofunwarrantedtripsduetocoldambientconditions
“Since converting to the Rosemount 5300 with Dynamic Vapor Compensation, unit reliability has significantly increased.”ManagerofGasandTurbineEngineering
APPLICATIONBoilerdrumlevelcontrolatacombinedcyclepowerplant.
CUSTOMERNAnaturalgascombinedcyclegasplantlocatedinUSAwithacapacityofover900MW
CHALLENGEDuringthewintermonths,sub-freezingtemperaturesarecommoninthisregionwhichcreateschallengesforthecompany’sdrumlevelmeasurementinstrumentation.
Theprimarylevelmeasurementontheboilerdrumsweredifferentialpressuretransmitterswithimpulsetubing(wetlegs).Duringwintermonthsfrozenwetlegscausederrorsintheindicateddrumlevelsresultinginunittrips.Toalleviatetheproblem,theimpulsetubeswereinsulatedandheattracedbuttheimpulsetubescontinuedtofreeze.
SOLUTIONAsaresult,thegassitesystemsengineerdecidedtoinvestigatealternativetechnologiestoimprovethereliabilityoftheboilerdrumlevelinstrumentation.WithsupportfromEmersonTMexperts,theyinstalledRosemount5300GuidedWaveRadarwithDynamicVaporCompensation(DVC)alongwithaRosemount9901bypasschamber.
Withprocessdesignconditionsexceeding2300psiand650°F,theRosemount5300withDVCprovidedfullycompensatedlevelmeasurements,independentofpressureandtemperature,resultinginaccurateandreliablelevelreadingsduringallstart-upandshut-downconditions,regardlessoftheweather.
Illustration showing how Dynamic Vapor Compensation works
Power Plant Achieves Reliable Boiler Drum Level Control with RosemountTM Guided Wave Radar
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“With the proven reliability of the Rosemount 5300 with DVC, we are working to implement them as a best practice for the combined cycle fleet”ManagerofGasandTurbineEngineering
INDUSTRY
Theplantusedatwooutofthreevotingsystemwiththreeredundantradarinstallations.Sinceinstallation,theRosemount5300withDynamicVaporCompensationhasprovedtobeveryreliable.Theradarlevelscannotdeviatefromeachotherbymorethan2.5"(6.35cm)withoutcausingtheboilertotrip.Sinceinstallation,theyhavealltrackedreliablyandwithinthemanufacturer’sspecification.
Emersontechniciansperformedon-sitestartupoftheradarsandprovidedformaltrainingforthesiteoperatorstoensureconfidenceinthenewproduct.
RESOURCESRosemount 5300 Guided Wave RadarEmersonProcess.com/Rosemount/Guided-Wave-Radar/5300
Emerson Process Management Power IndustryEmersonProcess.com/Industries/Power
StandardTermsandConditionsofSalecanbefoundatwww.Emerson.com/en-us/pages/Terms-of-Use.aspxTheEmersonlogoisatrademarkandservicemarkofEmersonElectricCo.RosemountandtheRosemountlogotypearetrademarksofEmersonProcessManagement.Allothermarksarethepropertyoftheirrespectiveowners.©2016EmersonProcessManagement.Allrightsreserved.
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