About Centrifugal pump.

2. CONTENT
INTRODUCTON
COMPONENTS OF CENTRIFUGAL PUMP
WORKING
PROBLEMS
APPLICATION
ADVANTAGE
CONCLUSION
REFERENCE

3. INTRODUCTION
Centrifugal pump are used to transport liquids by the
conversion of the rotational kinetic energy to the
hydrodynamics energy of the liquid flow ,
rotational energy typical comes an electric motor.

4. COMPONENTS OF CENTRIFUGAL
PUMP

5. CASING
 The main propose of casing to
convert kinetic energy to
pressure energy.
Type of casing..
Volute-Build a higher head.
Vortex- In circular chamber is
provided b/w the casing and
impeller .It reduce formation of
the eddies.
Diffuser- A set of stationary
vanes that surround the impeller.
it allowing a more gradual
expansion and less turbulent
area for the liquid.

6. IMPELLER
 The impeller is the main rotating part
that provides the centrifugal
acceleration to the fluid.
Types of impeller-
Open impeller-used for muddy liquids
Semi-open impeller-used for
contaminated liquids.
Closed impeller- used for clean liquid.

7. WORKING
Liquid forced into
impeller.
Vanes pass kinetic energy
to liquid.
Liquid rotates and
leaves impeller.
Volute casing converts
kinetic energy into
pressure energy.

8. PROBLEMS
Cavitation-The net positive suction head (NPSH) of
the system is too low for the selected pump
Wear of the impeller—can be worsened by suspended
solids
Corrosion inside the pump caused by the fluid
properties
Overheating due to low flow
Leakage along rotating shaft.
Lack of prime—centrifugal pumps must be filled (with
the fluid to be pumped) in order to operate

9. ADVANTAGE
IT IS SIMPLE IN CONSTRUCTION.
LOW INTIAL COST.
LOW MAINTANCE COST.
DEAL WITH LARGE VOLUME.
WIDELY USED FOR COOLGY LIQUID.

10. APPLICATION
Widely used in industries-
Petroleum industry
Pharmaceuticals and cosmetics industry
Power plant
Steel industry
Dairy industry
• Waste water treatment plant
• In house for water supply

11. CONCLUSION
IT IS VERY EFFECTIVE, MORE
RELIABLE EQUIPMENT FOR PUMPING
THE LIQUID ,
EASILY TO HANDLE AND CONTROL
MORE EFFICENT.

12. REFERAENCE
Unit operation of chemical engg. book
(McGraw HILL)
https://en.wikipedia.org/wiki/Pump