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X ћ JuneDrilloftheMonthInstructorGuide    Course: PumpsRefresherCourse#0 SessionReference:10 Topic:ReviewofHydraulicsandPumpComponents0 LevelofInstruction:0 TimeRequired:3hours0 Materials:Chalkboard0 Reference:PumpOperatorStudentManual,   MarylandFireandRescueInstitute================================================================= Preparation:  Motivation: Objective(SPO):110 0 Thestudentwilldemonstrateabasicunderstandingoffluidhydraulics,centrifugalpumpcomponents,andfiregroundhydraulicsthroughclassdiscussionandparticipation. Overview:0  ReviewofHydraulicsandPumpComponents0  *IntroductiontoFluids0  *CentrifugalPumpComponents0  *HydraulicsReview Session10 ReviewOfHydraulicsAndPumpComponents ̢SPO110 Thestudentwilldemonstrateabasicunderstandingoffluidhydraulics,centrifugalpumpcomponents,andfiregroundhydraulicsthroughclassdiscussionandparticipation.110 0 Demonstrateanunderstandingofbasicfluidhydraulicsastheyrelatetotheoperationofapumponmotorizedfireapparatus.120 0 Demonstrateanunderstandingofthepurposeandoperationofthevariouscomponentsofacentrifugalpumponmotorizedfireapparatus.130 0 Demonstrateanunderstandingofnozzlepressure,frictionloss,andthecalculationofwatertoproduceadequatefirestreams. ` X" X $XBDThePumpsRefreshercourseisdesignedforindividualswhoarecurrentlyorhavebeenpumpoperatorsandwhohavesuccessfullycompletedapumpscourse.Thereshouldbealotofinteractionratherthanlecture.I.0 IntroductiontoFluids(11)0 A.0 Waterisincompressible0 B.0 Componentsaffectingmovementofwater0 0 1.0 Flow(GPM)0 0 2.0 Pressure(PSI)0 0 3.0 Resistance(FL)0 C.0 Basicprinciplesofwater0 0 1.0 Acolumnofwateronefoothighexerts.434PSIatthebase/.434PSIrequiredtoliftcolumnofwateronefoot(roundedto.5PSIperfoot)0 0 2.0 Acolumnofwater2.304feethighproduces1PSIatthebase/1PSIisrequiredtoliftacolumnofwater2.304feet0 0 3.0 1gallonofwaterweights8.35lbs.0 0 4.0 1cubicfootofwatercontains7.5gallonsandweights62.5lbs.0 D.0 NozzlerestrictsflowofwatertherebycreatingpressureattipII.0 CentrifugalPumpComponents(12)0 A.0 PowerTrain0 0 1.0 Pumpshiftinitiatestransferspowerfromroadtransmissiontopumptransmission0 0 2.0 Transfercaselocationofgearstochangeenginepowerfromroadoperationstopumpoperations0 0 3.0 Pumpshaftshaftonwhichpumpimpellersride0 B.0 PumpHousing0 0 1.0 Impeller(s)numberdependentonnumberofstages0 0 2.0 Casinghousesimpeller(s)andcontrolsflowofwater0 0 3.0 Clearanceringssealbetweenimpeller(s)andcasing0 0 4.0 Packingprovidessealwhereshaftpassesthroughcasing0 0 5.0 Transfervalvechangesflowofwaterincasingonmultistagepumps0 C.0 PumpPanelControls0 0 1.0 Valves0 0 0 a.0 intakecontrolsincomingwaterflow0 0 0 b.0 dischargecontrolsoutgoingwaterflow0 0 0 c.0 pressure/volumeorseries/paralleloperatestransfervalveonmultistagepumps0 0 0 d.0 bleederrelievespressureonintakesordischarges0 0 0 e.0 drainallowswatertobedrainedfrompump0 0 0 f.0 tanktopumpallowswatertoflowfromboostertanktopump0 0 0 g.0 tankfillallowsboostertanktobefilledthroughpump0 0 2.0 Pressurecontrol0 0 0 a.0 reliefvalvedumpsexcesspressurebackintointakesideofpump0 0 0 b.0 pressuregovernorcontrolspressurebyreducingenginespeed0 0 0 c.0 intakereliefdumpsexcessonintakesideofpumptoground0 0 3.0 Gauges0 0 0 a.0 intakeregistersintakepressurefrompressurizedsources0 0 0 b.0 dischargeregistersdischargepressureonlinescharged0 0 0 0 1)0 masterregistershighestdischargepressure0 0 0 0 2)0 individualregistersdischargepressureforindividuallines0 0 0 c.0 tachometerregistersenginespeed0 0 0 d.0 oilpressureregistersengineoilpressure0 0 0 e.0 waterlevelregisterswaterlevelinboostertank0 0 0 f.0 temperatureregistersenginetemperature0 0 4.0 Other0 0 0 a.0 primercreatesvacuumincasingfordraftingoperations0 0 0 b.0 auxiliarycoolercirculateswaterbetweenpumpandradiator0 0 0 c.0 RadiatorfilltransferswaterfrompumptoradiatorIII.0 Hydraulicsreview(13)0 A.0 Nozzlepressures0 0 1.0 Straighttip0 0 0 a.0 50PSIhandlines0 0 0 b.0 80PSImasterstreams0 0 2.0 Fogtip100PSIhandlinesandmasterstreams0 0 3.0 Automaticnozzles100PSIϢhandlines0 B.0 Frictionlossprinciples0 0 1.0 Roundflowtonearest50gallons0 0 2.0 Supplylinesbasedon3inchhose(usinghandmethod)0 0 0 a.0 3inchhoseQ2(inhundredsofgallons)0 0 0 b.0 4inchhoseQ2(inhundredsofgallons)dividedby50 0 0 c.0 5inchhoseQ2(inhundredsofgallons)dividedby150 0 0 d.0 21/2inchhoseQ2(inhundredsofgallons)times20 0 0 e.0 Ifquantityisbetweenhundreds,multiplylowerandupperquantitiestogether.Forexample,350gallons,multiply3times4foratotalof12PSIper100feetbetweenfor3inchhose.Convertfor21/2,4,or5inchhose.0 0 3.0 Attacklinesuptoandincluding2inch,30PSIper100feet0 0 4.0 Devices10PSIperdevice0 0 5.0 Elevation.5PSIperfoot0 C.0 Calculatingfrictionloss0 0 1.0 Attackpumper   EP=FL+D+/EL+NP0 0 2.0 Supplypumper   EP=FL+D+/EL+50PSI0 D.0 Pressurecontroldevices0 0 1.0 Intake0 0 0 a.0 Intakereliefvalve0 0 0 b.0 LDHreliefvalve0 0 0 0 Shouldbesetnomorethan20PSIabovetheaveragewatersystempressureinresponsearea0 0 2.0 Discharge0 0 0 a.0 Pressuregovernor0 0 0 b.0 Reliefvalve0 0 0 0 Shouldbesetafterlinesarecharged0 E.0 Characteristicsofhose* ` X   ` X exX Q QuantityQ WeightQ MaximumQ ofWaterQ ofWaterQ FlowQ (ingal.)Q (inlbs.)Q (inGPM)#` XDxX##` X pkxX#11/2in. 9.00 75.15 12513/4in. 12.25 102.29 1502in. 16.00 133.60 20021/2in. 25.00 208.75 2503in. 36.00 300.60 4004in. 64.00 534.40 8005in. 100.00 835.00 1,500 ` X*Quantityandweightbasedon100feetofhoseX     Review:  ReviewofHydraulicsandPumpComponents *IntroductiontoFluids *CentrifugalPumpComponents *HydraulicsReview̢0 Remotivation:0 Assignment:================================================================= Evaluation: