ML17053A853: Difference between revisions
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
||
Line 31: | Line 31: | ||
,~~~6~150LIFECYCLETESTOFLIMITORQUEOPERATORPRODUCINGAPPROXIMATELY16,500POUNDSTHRUSTTheLimitorqueoperatorwasshippedtotheFranklinInstituteResearchLaboratories,Philadelphia,Pennsylvania.Theoperatorwasmountedonastandinsidethetestchamberanda150cycleloadtestwasmadeontheunit.Thistestconsistedofstrokingthe23/8"diametervalvestematotalofapproximately12inchesintwominutes.Thevalvesteminthefullclosedpositionproducedathrustof16,500poundsonarigidplatesecurelyboltedtothetestchamber.Thethrustwasmeasuredbythesamestrain-gaugerecordinginstru-mentusedintheactualenvironmentaltestconductedbytheFranklinInstitute.Theunitwaswiredupsothattheclosing(y.directionandtheopenpositiongearedlimitswitchstoppedtheunitinthefullopenposition.Thespeedof.travelwas6inchesperminute.Afterthelifecycletestingwascompleted,theunitwasinspectedand-foundtobeinexcellentcondition.Therewasnonoticeablewearonanyoftheparts.ThesameelectricImotorwhichhadbeenheatagetestedatRelianceElectricCo.wasusedforthislifeCycletest.Therewasnonoticeableadverseeffectontheelectricmotorandit.functionedproperly.7.TESTOFLIMITORQUEVALVEOPERATORUNDERSIMULATED'REACTORCONTAINMENTPOST-ACCIDENTSTEAMANDCHEMICALENVIRONMENTTheattachedreportoftheFranklinInstituteResearchLaboratoriesdescribestheactualtestingunderthisenviron- | ,~~~6~150LIFECYCLETESTOFLIMITORQUEOPERATORPRODUCINGAPPROXIMATELY16,500POUNDSTHRUSTTheLimitorqueoperatorwasshippedtotheFranklinInstituteResearchLaboratories,Philadelphia,Pennsylvania.Theoperatorwasmountedonastandinsidethetestchamberanda150cycleloadtestwasmadeontheunit.Thistestconsistedofstrokingthe23/8"diametervalvestematotalofapproximately12inchesintwominutes.Thevalvesteminthefullclosedpositionproducedathrustof16,500poundsonarigidplatesecurelyboltedtothetestchamber.Thethrustwasmeasuredbythesamestrain-gaugerecordinginstru-mentusedintheactualenvironmentaltestconductedbytheFranklinInstitute.Theunitwaswiredupsothattheclosing(y.directionandtheopenpositiongearedlimitswitchstoppedtheunitinthefullopenposition.Thespeedof.travelwas6inchesperminute.Afterthelifecycletestingwascompleted,theunitwasinspectedand-foundtobeinexcellentcondition.Therewasnonoticeablewearonanyoftheparts.ThesameelectricImotorwhichhadbeenheatagetestedatRelianceElectricCo.wasusedforthislifeCycletest.Therewasnonoticeableadverseeffectontheelectricmotorandit.functionedproperly.7.TESTOFLIMITORQUEVALVEOPERATORUNDERSIMULATED'REACTORCONTAINMENTPOST-ACCIDENTSTEAMANDCHEMICALENVIRONMENTTheattachedreportoftheFranklinInstituteResearchLaboratoriesdescribestheactualtestingunderthisenviron- | ||
wmentalcondition.Afterthetest.wascompleted,theLimitorqueoperatorwasshippedbacktoPhiladelphiaGearCorporation,KingofPrussia,'ennsylvaniawhereitwasdisassembledandall.partswereinspected.'hotographsareincludedshowingthevarious-partsoftheoperator.Allparts,includingtheelectricmotor,slidewereposition'ransmitter,.seals,bearings,gears,andshafts,wereinspectedandnonoticeablewearwasnoted.However,thegearframe.ofthegearedlimit.switchhadcorrodedandcausedaminorfailure.Thegearedlimitswitchframehadbeenattackedbytheboricacidinthesteamatmosphere.Thiscausedthegearframetocorrodeand..resultedinbinding,upoftheshaftsofthegearedlimitswitchwheretheyextendthroughthegearedlimitswitchhousing.ThiscausedthemalfunctionoftheswitchasdescribedintheFranklinInstituteResearchLabor-atories'eport.Amaterialchangehasbeeninstitutedtocorrectthiscorrosiveactionofthematerialusedinthatparticularswitch.Onallpresent'ordersbeingprocessed,andonallfutureunitstobeshippedtomeetenvironmentalconditionssuchasthis,thegearframehousingofthegeared'limitswitchwillbeabronzematerialwhichisnotsubjectltocorrosionbyboricacidsolutions.Themotorinsulationresistanceafteralltestingwas1,000megohmsacrossall'threemotorterminalstogroundat500volts. | wmentalcondition.Afterthetest.wascompleted,theLimitorqueoperatorwasshippedbacktoPhiladelphiaGearCorporation,KingofPrussia,'ennsylvaniawhereitwasdisassembledandall.partswereinspected.'hotographsareincludedshowingthevarious-partsoftheoperator.Allparts,includingtheelectricmotor,slidewereposition'ransmitter,.seals,bearings,gears,andshafts,wereinspectedandnonoticeablewearwasnoted.However,thegearframe.ofthegearedlimit.switchhadcorrodedandcausedaminorfailure.Thegearedlimitswitchframehadbeenattackedbytheboricacidinthesteamatmosphere.Thiscausedthegearframetocorrodeand..resultedinbinding,upoftheshaftsofthegearedlimitswitchwheretheyextendthroughthegearedlimitswitchhousing.ThiscausedthemalfunctionoftheswitchasdescribedintheFranklinInstituteResearchLabor-atories'eport.Amaterialchangehasbeeninstitutedtocorrectthiscorrosiveactionofthematerialusedinthatparticularswitch.Onallpresent'ordersbeingprocessed,andonallfutureunitstobeshippedtomeetenvironmentalconditionssuchasthis,thegearframehousingofthegeared'limitswitchwillbeabronzematerialwhichisnotsubjectltocorrosionbyboricacidsolutions.Themotorinsulationresistanceafteralltestingwas1,000megohmsacrossall'threemotorterminalstogroundat500volts.}} | ||
}} |
Revision as of 00:17, 19 May 2018
ML17053A853 | |
Person / Time | |
---|---|
Site: | Nine Mile Point |
Issue date: | 01/02/1969 |
From: | FRANKLIN INSTITUTE |
To: | |
Shared Package | |
ML17053A854 | List: |
References | |
NUDOCS 7907300160 | |
Download: ML17053A853 (16) | |
Text
~~L4~PHILADELPHIAGEARCORPORATIONKINGOFPRUSSIA,PENN.19406LIMITORQUEVALVECONTROLTESTOFLIMITORQUE'ALVEOPERATOR.TOMEETGENERALREQUIREMENTSOFANELECTRICVALVEACTUATORINNUCLEARREACTORCONTAINMENTENVIRONMENTTESTREPORT3'ANUARY2,1969sooEGG~gogS
TESTREPORT-JANUARY2,1969ENGINEERINGORDERNO.600198TheLimitorquevalveoperatortestedwasModelSMB-0witha15foot:pound,3phase,60cycle,440voltmotor,w~ithseg~~ightemperaturemotorinsulationandhightemperatureresistantnon-\,e~r~~~~Wmetalliccomponents,towithstandthe~contemplatedsteampressure,hightemperatureandchemicalconditionsexpected.in.theeventofanuclearreactorfailure.within.the,.containmentvessel.TheLimitorque.operatorwaswiredforatorqueseatingcontrolforclosingdirectionandpositionlimitingcontrolforopendirection.'IA23/8"diameterby1/4"pitch,1/4"lead,lefthandstemwasusedtosimulatethestemofavalvebeingopenedandclosedThespeedofoperationwasapproximately6"perminuteovera12"travel.LThedesignedseatingthrusttobeexertedonthe.stembytheLimitorquevalvecontrolwas16,500poundsofthrustintheclosedpositionofthevalvestem.Aslidewireelectricpositiontrans-mitter.wasalsoinstalledandconnectedtoaremotepositionreceiveroutsidethetestchamber.TESTSTOBEPERFORMEDONOPERATOR1.Preliminaryheattestsoncomponentparts.2.Preliminaryheattestsonactuator.3.Preliminarylivesteamtestonactuator.4.Heatagingtestofelectricmotorandelectricmotorwithbrake.
5.Shockandvibrationtestofactuatortosimulateseismicconditions.6.l50lifecycletestofactuatorproducingapproximately16,500poundsofthrust.7',TestofLimitorquevalveoperatorandelectricbrakemotorunderasimulatedreactorcontainmentpost-accidentsteamandchemicalenvironment.
l.PRELIMINARYHEATTESTSONCOMPONENTPARTSThestandardLimitorqueoperatorgearedlimitswitchandtorqueswitchwassubjectedtoadryheattestforapproxi-mately16hoursatatemperatureof375'F.Periodicallyduringthistest,theswitcheswereremovedfromtheovenandactuatedbyhand.Theoperationwassatisfactoryandnomal-'unctionsoccurred.Allpartsfunctionedfreelyandtherewasnobinding,jamming,norabnormaldistortionof.parts.Thetestwassuccessfulinallrespects.2.~PRELIMINARYHEATTESTSONACTUATORAcompletelyassembledandoperationalLimitorqueoperatorwasplaced.inanovenwherethetemperaturewasmaintainedatapproximately325'F.foradurationof12hours.Theunitwaselectricallyoperatedeverythirtyminutesforaperiodofapproximatelytwominutespercycleandusingthegearedlimitswitchestostoptheactuatoratthefullopenandfullclosedpositionoftravel.Indicatinglightcircuitswerealsowired.tothegearedlimitswitches.Thetestwassuccessfulineveryrespect.Therewerenomalfunctionsoftheoperatoranduponinspectionofthecom--ponen'tpartsused,therewasnonoticeabledeteriorationorwear.Thelubricantusedinhegearedlimitswitchdidbecomehardandcaked,howeverthelubricantusedintheLimitorque
gearhousingremainedpliableandhaditsoriginalconsistency.ItwasdeterminedthatthegreaseinthegearedlimitswitchgearhousingshouldbechangedtothesamegreaseasintheLimitorqueoperatorgearhousing.3'..PRELIMINARYLIVESTEPSTESTONACTUATOR~AcompleteLimitorqueactuatorwassetupforelectricaloperationandlivesteamwaspipedintotheconduittapsonthetopofthelimitswitchcompartment.Oneofthebottomconduittapswasleftopentodrainoffanycondensate.Theoperatorwassetuponatimerbasisforoperationoveraperiodofapproximatelyninehoursandoperatingeverythirtyminutesfortwominutespercycle.Duringthistest,thelivesteamintheswitchcompartmentseemedtohavenoeffectwhateveronthefunctionofthe.limitswitchesin'heircontroloftheoperatoratthefull.openandfullclosedpositionoftravel.Inaddition,thelimitswitcheswerewireduptoindicatinglightswhichoperatedsatisfactorily.Thetestwassuccessfulandtherewasnonoticeableeffectonthefunctionofanyofthepartsinthelimitswitchcom-partment.4.HEATAGINGTEST.OFELECTRICMOTORANDELECTRICMOTORWITHBRAKETheelectricmotorfortheLimitorqueoperatortobeusedintheenvironmenttestandanotherelectricmotorequippedwithadisktypebrakeweresub'jectedtoaheatagingtest.
BothelectricmotorsweresenttoReliance,ElectricCo.forheatagetesting.Thistestconsistedofbakingthemotorsatatemperatureof180'C.foratotalof100hourstosimulateagingthemotortoa40yearlifeexpectancy.Motorinsulationcheckswere.madeandfound.to.bewithinnormallimits.There.werenoadverseeffectsonthemotorsandmotorinsulationresi'stancemeasured'infinitytoground.5..SHOCKANDVIBRATIONTESTOFACTUATORTOSIMULATESEISMICCONDITIONSTheLimitorqueoperatortobeusedintheenvironmenttestwasshippedcompletetotheLockheedElectronicsCo.,inPlain-.field,NewJersey,forshockandvibrationtestingtosimulateseismicconditions.Acopyofthisreportisenclosedherewith.ThetestbasicallyconsistedofmountingtheLimitorqueoperatoronashockandvibrationtabletotestitat'20cyclespersecondvibrationat.1Gloadforaperiodoftwominutesononeminuteoff.Thiswouldconstituteonecycle.Thecyclewasrepeatedfivetimesinboththeverticalandhorizontalaxisoftheoperator.Theactualtestreportandphotographsareincludedhere.ThetestwassuccessfulandtherewasnonoticeableeffectwhatsoeverontheLimitorqueoperator.
,~~~6~150LIFECYCLETESTOFLIMITORQUEOPERATORPRODUCINGAPPROXIMATELY16,500POUNDSTHRUSTTheLimitorqueoperatorwasshippedtotheFranklinInstituteResearchLaboratories,Philadelphia,Pennsylvania.Theoperatorwasmountedonastandinsidethetestchamberanda150cycleloadtestwasmadeontheunit.Thistestconsistedofstrokingthe23/8"diametervalvestematotalofapproximately12inchesintwominutes.Thevalvesteminthefullclosedpositionproducedathrustof16,500poundsonarigidplatesecurelyboltedtothetestchamber.Thethrustwasmeasuredbythesamestrain-gaugerecordinginstru-mentusedintheactualenvironmentaltestconductedbytheFranklinInstitute.Theunitwaswiredupsothattheclosing(y.directionandtheopenpositiongearedlimitswitchstoppedtheunitinthefullopenposition.Thespeedof.travelwas6inchesperminute.Afterthelifecycletestingwascompleted,theunitwasinspectedand-foundtobeinexcellentcondition.Therewasnonoticeablewearonanyoftheparts.ThesameelectricImotorwhichhadbeenheatagetestedatRelianceElectricCo.wasusedforthislifeCycletest.Therewasnonoticeableadverseeffectontheelectricmotorandit.functionedproperly.7.TESTOFLIMITORQUEVALVEOPERATORUNDERSIMULATED'REACTORCONTAINMENTPOST-ACCIDENTSTEAMANDCHEMICALENVIRONMENTTheattachedreportoftheFranklinInstituteResearchLaboratoriesdescribestheactualtestingunderthisenviron-
wmentalcondition.Afterthetest.wascompleted,theLimitorqueoperatorwasshippedbacktoPhiladelphiaGearCorporation,KingofPrussia,'ennsylvaniawhereitwasdisassembledandall.partswereinspected.'hotographsareincludedshowingthevarious-partsoftheoperator.Allparts,includingtheelectricmotor,slidewereposition'ransmitter,.seals,bearings,gears,andshafts,wereinspectedandnonoticeablewearwasnoted.However,thegearframe.ofthegearedlimit.switchhadcorrodedandcausedaminorfailure.Thegearedlimitswitchframehadbeenattackedbytheboricacidinthesteamatmosphere.Thiscausedthegearframetocorrodeand..resultedinbinding,upoftheshaftsofthegearedlimitswitchwheretheyextendthroughthegearedlimitswitchhousing.ThiscausedthemalfunctionoftheswitchasdescribedintheFranklinInstituteResearchLabor-atories'eport.Amaterialchangehasbeeninstitutedtocorrectthiscorrosiveactionofthematerialusedinthatparticularswitch.Onallpresent'ordersbeingprocessed,andonallfutureunitstobeshippedtomeetenvironmentalconditionssuchasthis,thegearframehousingofthegeared'limitswitchwillbeabronzematerialwhichisnotsubjectltocorrosionbyboricacidsolutions.Themotorinsulationresistanceafteralltestingwas1,000megohmsacrossall'threemotorterminalstogroundat500volts.