Search Results Web results Pump - Wikipediaen.wikipedia.org › wiki › Pump A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action, typically converted from electrical energy into Hydraulic energy. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps.

1. PUMPS

2. ❑Pump
A pump is a device used to move fluids, such as
liquids or slurries. It increases the mechanical
energy of the fluid. The additional energy can
be used to increase -
Velocity (flow rate)
Pressure
Elevation

4. ❑Positive Displacement Pump
Positive Displacement pumps apply pressure
directly to the liquid by a reciprocating piston, or
by rotating members.
Uses:
1.can handle shear sensitive liquid.
2.Use for high pressure application
3.Use for variable viscosity applications.
Types-
➢ Reciprocating pump
➢ Rotary pump

5. ➢Reciprocating Pump
In Reciprocating pumps, the chamber is a
stationary cylinder that contains a piston or
plunger.
Types-
➢ Piston Pump
➢ Plunger Pump
➢ Diaphragm Pump

8. ❖Plunger pump
1.Have high efficiency.
2.Capable of developing
very high pressures.
3.Low and easy
maintenance
Plunger pump (single acting)

11. ❖Diaphragm Pump
1.flexible diaphragm is used
(rubber, thermo-plastic,
metal).
2. Can be used to make
artificial hearts.
3.Can handle highly
viscous liquids.
4.Can handle toxic or
corrosive liquids.
5. 97% efficient.
Diaphragm Pump (single acting)

13. ➢Rotary Pump
In Rotary pumps, the chamber moves from inlet
to discharge and back to the inlet. A wide
varietyof rotary pumps are available like
gear pumps, lobe pumps, screw pumps,
cam pumps, vane pumps.
❖ Most popular: gear pumps
❖ Relatively constant output
Types-
➢ Single Rotor
➢ Multiple Rotor

14. Outlet

17. Lobe Pump

19. rotor
pipe

23. Vane pump
Consist of non metallic vanes that slide into and out of the slots.
Each revolution displace a constant volume of liquid
Used for low and high viscosity liquids.
• LPG
• Rerigrants
• Ammonia
• Liquid carbondioxide
• Refined fuels
24 % greater efficiency than gear pump

27. Rotary vane Pump

30. Types of Rotodynamic
pumps
➢Centrifugal pumps (radial pumps)
➢Axial pumps
➢mixed flow pumps
➢Turbine pumps

31. ❑Dynamic Pump
➢ Centrifugal Pumps
This pumps generate high rotational velocities, then
convert the resulting kinetic energy of the liquid to
pressure energy.
Use:
1.Centrifugal pumps are generally used where high flow
rates and moderate head increases are required.
2. Can handle fluids containing suspended solids

33. 14
Centrifugal Pumps
How do they work?
• Vanes pass kinetic
energy to liquid: liquid
rotates and leaves
impeller
• Volute casing converts
kinetic energy into
pressure energy

34. Centrifugal Pump
Open Semi-Open Closed
Impellers
Impeller are usually made of
stainless steel or bronze.

36. Axial flow pumps:-
Axial flow pumps differ from radial flow in that the fluid enters and exits
along the same direction parallel to the rotating shaft. The fluid is not
accelerated but instead "lifted" by the action of the impeller. They may
be likened to a propeller spinning in a length of tube. Axial flow pumps
operate at much lower pressures and higher flow rates than radial flow
pumps.

39. Mixed-flow pumps:-
Mixed-flow pumps function as a compromise between radial and axial-flow
pumps.higher pressures than axial-flow pumps
While delivering higher discharges than radial-flow pumps.

42. Turbine pump
A turbine pump is a centrifugal pump that is mainly
used to pump water from deep wells or other
underground and man-made bodes of water to water
distribution systems.
fluid enters "eye" of the impeller.
constant head and high pressure uniform flow.

47. THANK YOU