Raw Water Pumps: What You Need to Know

The raw water pumps are an integral part of any industrial RO setup. Its job is to carry raw water from the origin to the treatment facility.

1. RawWaterPumps:WhatYouNeedtoKnow
Pumpingseawaterintotheboat'scoolingsystemisthejoboftherawwater
pump,alsocalledaseawaterpumporanenginecoolingpump.Tokeepthe
engineattheidealworkingtemperature,itpullswaterfromoutsidethe
vesselandpumpsitviathecoolingsystem.Thepump'simpellerdoesthe
work,andit'susuallyrelativelyeasytogetatformaintenanceor
replacement.TherawwaterpumpsareanintegralpartofanyindustrialRO
setup.Itsjobistocarryrawwaterfromtheorigintothetreatmentfacility.
Therawwaterpump'sdesigniscrucialsinceitinfluencestheROplant's
productivityandefficiency.
Features
● Impeller
Superiorimpellerefficiencyallowsforincreasedpumpingwithfewerstages.
● Motor
Powerfulandefficientdrymotorthatautomaticallyshutsoffifitgetstoo
hot.Capableofwithstandingsignificantvoltageswingsmotor.
● Shaft
Extra-sturdyStainless-SteelShaftforUseinHarsherEnvironments

2. RawWaterPumps:WhatYouNeedtoKnow
● MechanisedO-Rings
Mechanicalsealpumpsoperateinsealedchambersisolatedfromthefluid
beingpumped.
● Bearing
Thetopandbottomendsuseheavy-dutyballbearingstocounteract
unfavourablestress.
● ConstructionofaSandBarrier
Thesealguardprovidessupplementarysafetyforamechanicalseal.
● SealingCables
Aspecialleakproofcablesealingsystemhasbeenimplementedtoprevent
waterfromenteringthecable.Youmayswitchoutcableswithoutopening
themotor.
Useandoperationofarawwaterpump:
Thewaterispumpedfromthesource(awell,lake,orriver)totheROplant
usingacentrifugalpumpknownasarawwaterpump.Thepressure
differencecreatedbythepumppushesthewaterfromthesourcetotheRO
plant.Multipleprocessespurifythewaterbyremovingharmfulsubstances.
Thefirststepintreatingwateristherawwaterpump.Itcanmanageahigh
volumeofwateratasteadyflowrate.Thewatersourcemaycontainalotof
silt,debris,ordissolvedsolids,yetthepumpstillneedstobeabletohandle
it.
PumpingRawWater:HowIt'sDone
PressurisedsourcesofuntreatedwaterThispumphandlesmostofthe
enginecooling.Itdrawswaterfromtheraw-watercoolingcircuitofthe
engineandpumpsitviaarubberimpeller.Thisliquidcouldbesalty,fresh,
orahybrid.Thestrengthsanddrawbacksoftheimpellerarewellknown.It
shouldbereplacedeveryseason,unlikemanyrawwaterpumps
manufacturere.It'scheapinsuranceagainstoverheatingduetoimpellers.

3. RawWaterPumps:WhatYouNeedtoKnow
Uncommon rawwaterpumppartsincludethecam,wear,andcoverplate.
Thecrescent-shapedcamishousedwithinthepumpmechanism.The
eccentricorcam-likeformoftheimpellerbladescausesthemtotwistas
theypassit,creatingapumpingmotion.Mostcamsmaybereplacedwithno
problems.Besidesbeingworndownbythefrictioncreatedbytheimpeller
blades,theyalsoerodesignificantlyfastersincetheyareoftenconstructed
ofmetalwithasomewhatlowernoblenessthanthepumpbodyitself.
Conclusion
TheimpellerintherawwaterpumpsproducedbyFlowmore,rawwater
pumpsmanufacturer inIndia,rotateswhenabeltfromtheengineis
engaged.Theimpellercanbeeasilyremovedforinspectionorreplacement.
Themachineisprotectedfromoverheatingthankstoaheatexchangerand
waterjacket.Thefreshwaterabsorbstheheatofthedevice.Afterbeing
heatedbythefreshwaterintheheatexchanger,therawwaterisreleased
overboardoncemore.
SourceBy:-
https://flowmorepumpsindia.blogspot.com/2023/09/Raw-Water-P
umps-What-You-Need-to-Know.html