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Water pressure increases by a factor of 20 as the impeller speed increases farther into the liquid. u2026 The speed of the impeller results in a pressure fluctuation corresponding to the impeller speed % of the water pressure. The quantity of water drawn into the first chamber is 8.4 L, while in the second chamber it is 8.2 L. This quantity of water elution into the air equals to the impeller speed weight times the mean diameter of the liquid ring (mm).<br>
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WEST TECHNOLOGY Vacuum PumpUK Water Vacuum Pump Working Principle WWW.WEST-TECHNOLOGY.CO.UK
WaterVacuumPumpWorking Principle Inacurrentconfiguration,aliquidringispumpedaroundtheshaftatarate dependentonthediameterofthepumpingrotor.Inthealternative,therotorcan bemadesmallerbyusingsmallerdiametertubing.Thissmallerrotorreducesthe pump’soveralldiameterandhysteresis.Comparedtoatwo-stagepump,the workingprincipleandtestingproceduresarethesame. Toanalysethepump’sperformance,weconstructaflowgenerationcurve showingthepump’sabilitytopumpliquidfromahigherpressuretoalower pressurewithaconstantdiameterinbetween.Wefindthatthepumping efficiencyishighestforthesecondstagedesignwith10:1tubinganddropsto nearzeroat3:1orsmallerdiameter.Thereisnosignificantincreaseincyclomatic efficiencyorcreepratewithincreasingdiameterofthepumpingrotor.Flow generationresultsshowasimilartrendwithalinearrelationshipbetween diameterandefficiency.Severalpumpingschemesarestudiedincludingawide- hole,axial,andasquarepiezopump.Theresultsshowthatalloftheseschemes havesimilarscalingbehavior. Increasingthediameterofthepumprotorfrom10mmto30mmincreasesthe efficiencyofoperationfrom64% to78%.However,largerdiametertubing increasespumpingefficiencyonlyslightlywithalargercreeprate.Inthelatter case,increasingtubingdiameterto30mmfrom15mmleadstoasmall improvementinefficiencyof83%.Theresultsshowthatbothfree-unlinked pumpingandself-unlinkedpumpinghavecomparableefficiency.Thissupports theuseofliquidringsinanindustrialscalepumptoachievehighpumping efficiencies. WWW.WEST-TECHNOLOGY.CO.UK
AboutWestTechnology Formedin1993asaspecialistvacuumengineeringcompanytoprovide custommademediumandhighvacuumsystems,thecompanyrapidly developeditsbusinessandwithinafewyearshadestablishedanunrivalled reputationforinnovativedesignandmanufactureofabroadrangeofcustom vacuumsystems. Thedemandforthesesystemscamefromawiderangeofindustrialand academiccustomers,includingmanybluechipcompaniesandworld-leading universities. WestTechnologyareUKagents/distributorsforleadingvacuumequipment manufacturersincludingPfeifferVacuum,BuschVacuum,Mil'sFranceand MKSInstruments.Thisbroadrangeofvacuumequipmentenablesustooffera comprehensiverangeofspecialistvacuumproductsandservices. Wealsooffervacuumconsultancyanddesignaswellastrainingcoursesin thebasicsofvacuumandheliumleakdetection. WWW.WEST-TECHNOLOGY.CO.UK