centrifugal pumps.ppt
TRANSCRIPT
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CENTRIFUGAL PUMPS
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CENTRIFUGALPOSITIVE DISPLACEMENT Pumps Classification
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Pumps
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SOME TYPES OF CENTRIFUGAL PUMPS
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SPLIT TYPE PUMPS
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BARREL TYPE PUMPS
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OPPOSITE IMPELLERSMULTI STAGE
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CENTRIFUGAL PUMPS CURVE LOSSES
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Centrifugal pumpsin series
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Centrifugal pumps in seriesHT = HA + HB
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CENTRIFUGAL PUMPS IN PARALLEL
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ISO- EFFICIENCY CURVESN1N3N2.70N1N2N3Pump ( RPM ) N1 >N2 >N3
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EFFICIENCY AS A FUNCTION OF SPECIFIC SPEED AND PUMP FLOW RATENS
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IF THE PUMP SPEED CHANGES
N1 = 2000 RPM TO N2 = 3000 RPM
Q1 = 200 GPM Q2 = GPM P1 = 400 p s i P2 = p s i HP1 = 40 HP2 =
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Mechanical seal and bearings arrangement