pump selection&operation
TRANSCRIPT
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Mataria Faculty of EngineeringMechanical Power Department
PUMPSPUMPSSelection & Operation
By
Prof. Dr. Eng. Ahmed Abohbsa
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Chapter IChapter I
Classification of PumpsClassification of Pumps
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PumpsPumps
Displacement DynamicDisplacement Dynamic
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1- Classification of Dynamic 1 Classification of Dynamic Pumps
1.1 Classification according to Impeller ShapeShape
1.2 Classification according to Casing DesignDesign
1.3 Classification according to Mechanical DesignMechanical Design
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Classification according 1.1 Classification according to Impeller shapeto Impeller shape
Single Suction
Radial Flowg
Mixed FlowShrouded
Double Suction
Axial Flow
RegenerativeOpen ImpellerStar
Regenerative
Propellerperipheral
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Impeller Shape Number ΩS (Specific Speed NS)
Qω QN( ) 4/3gH
QS
ω=Ω
4/3HQN
NS =Q [m/s]H [m]ω [1/s]
Q [GPM]H [ft]N [rpm]( )gH H
Dimensionless
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Ω =0 20 70 Ω =0 60 2 0 Ω =1 80 4 0 Ω =3 5 10ΩS=0.20-.70 ΩS=0.60-2.0 ΩS=1.80-4.0 ΩS=3.5-10
NS=2733 x ΩS
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Classification according 1.2 Classification according to Casing Designto Casing Design
Volute Casing Diffuser Casing (T bi t )Volute Casing (Turbine type )
Single Volute
Double Volute
Deep Well Turbine Pump
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Classification according 1.3 Classification according to mechanical Designto mechanical Design
C t if l l l d l l dCentrifugal (Radial, Mixed & Axial)
Close Coupled Separately Coupled
End suction In Line
RegenerativeEnd suction In Line
Overhung Impeller Impeller Between bearings
Special Effectg p bearings
Single stage Multistage
Vertical TypeHorizontal
Volute Turbine
Dry Pit Wet Pit
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Overhung Impeller, Close Coupled, Single Stage, End Suction
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Overhung Impeller Close Coupled Overhung Impeller Close Coupled Overhung Impeller, Close Coupled, Single Stage, Submersible
Overhung Impeller, Close Coupled, Single Stage, Inline
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Overhung Impeller, Separately Coupled, Single g p , p y p , gStage, Frame Mounted
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Overhung Impeller, Separately Coupled, Single Stage, Wet Pit Volute
Overhung Impeller, Separately Coupled, Single Stage, Inline, Flexible Coupling
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Impeller Between Bearings, Separately Coupled, Impeller Between Bearings, Separately Coupled, Single Stage, Axial (Horizontal) Split Case
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Axial (Horizontal) Split Case Pump
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Impeller Between Bearings, Separately Coupled, Multi-stage, Radial (Vertical) Split Case
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SubmersibleEnclosed Line Shaft
Open Line Shaft
Turbine Type, Vertical, Multi-stage, Deep Well
Line ShaftShaft
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Mixed Flow Vertical
Vertical, Axial Flow, Impeller (Propeller) Type(Propeller) Type
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Regenerative Turbine, Impeller Overhung Single StageOverhung, Single Stage
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Regenerative Turbine, Impeller Between Bearings, Two Stage
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Recommended Names of Centrifugal Pump Parts
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2- Classification of 2 Classification of Displacement Pumps
2.1 Rotary pumps
2.2 Reciprocating pumps
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Displacement Pumps
Rotary Pumps Reciprocating Pumps
Pi t Power
Vane
Piston
Flexible Member
Power
LobeControlled Volume
Gear
Steam
Screw
Steam
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Rotary PumpsRotary Pumpsy py p
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VaneVane
Sliding Vane Pump External Vane Pump
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PistonPiston
Axial Piston Pump
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Flexible Flexible Member
Flexible Vane
Fl ibl LiFlexible Tube
Flexible Liner
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LobeLobe
Three-lobe PumpSingle Lobe Pump
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GearGear
Internal Gear Pump (With Crescent)(With Crescent)
External Gear PumpExternal Gear PumpInternal Gear Pump (Without Crescent)
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Screw
S A d Wh l PScrew And Wheel PumpSingle Screw Pump
Two Screw Pump Three Screw Pump
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ReciprocatingReciprocatingp gp g
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Power PumpPower Pump
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Power PumpPower Pump
H i t l Si l ti Horizontal Single-acting Plunger Power Pump
V ti l Si l ti Vertical Single-acting Plunger Power Pump
Horizontal Double-acting Piston Power Pump
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CONTROLLED VOLUME PUMPS
Liquid End Assembly, Controlled Volume Plunger Pump
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Hydraulically Actuated Mechanically Actuated
Diaphragm Pump
Hydraulically Actuated Diaphragm Pump
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STEAM PUMPSTEAM PUMP
Cross-sectional Drawing of a Steam Pump. Steam End is on Left. Liquid End is on Right.