Centrifugal pump
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Transcript of Centrifugal pump
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Green University of Bangladesh Department of Textile Engineering
Presentation tropics: CENTRIFUGAL PUMP
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Working of Centrifugal Pump Centrifugal pump works on the principle that
when a certain mass of liquid is made to rotate along the impeller from the central axis of rotation, it impresses a centrifugal head. It causes the water to move radially outwards at higher velocity and causes the water to rise to a higher level. The motion of water is restricted by casing of pump, it result into pressure build up. In addition , the change in angular momentum of liquid during its flow reults into increase in pressure head.
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Definition of Centrifugal Pump. Convert the mechanical energy into
hydraulic energy by centrifugal force on the liquid
Constitute the most common type of pumping machinery
Used to move liquids through a piping system
Has two main components: 1. Stationary componets, casing,
casing cover and bearings 2. Rotating components,
impeller and shaft Classified into three categories ;
Radial Flow, Mixed Flow, Axial Flow
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Pump Impeller
Typical single suction impeller
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Impeller Types• Open• Semi-open• Closed
- Single suction- Double suction
• Non-clogging• Axial flow• Mixed
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Impeller and voluteArrows represent thedirection of water flow
Cutwater
Suction Eye
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Full Diameter Impeller
Rotation
Impeller
Blades
Vt
Vr
Vs
Vr = Radial Velocity
Vt = Tangential Velocity
Vs = Vector Sum Velocity
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Thank you.