reciprocating pump

This ppt explores the working of single acting reciprocating pump! i have added the animation to express it in more clear way. :)

1. Gujarat Power Engineering & Research Institute  By- - Karan Thawani (58 ) Contents:- - Reciprocating Pumps

2. RECIPROCATING PUMP: A pump which conveys the water from one place to another place with the help of linear motion of piston or plunger.

3. Piston Cylinder Crank Shaft Crank Connecting Rod Suction Pipe Sump Suction Valve Delivery Pipe Delivery Valve Discharge Tank SINGLE ACTING RECIPROCATING PUMP:

4. CONSTRUCTION OF RECIPROCATING PUMP: (1) Crank: It is mounted on the crank shaft. It is driven by either I.C. Engine or electric motor. (2) Connecting Rod: It connects the piston and the crank. It coverts the rotary motion of crank into reciprocating motion of piston. (3) Piston: It reciprocates inside the cylinder. It creates pressure difference inside the cylinder.

5. (4) Suction Pipe: It conveys the water from sump to the cylinder. (5) Delivery Pipe: It conveys the water from cylinder to the discharge tank. (6) Suction and Delivery Valve: These both valves are “NON-RETURN VALVE”. They don’t allow the backward flow of water. (7) Sump: It is the reservoir of liquid through which water will be pumped.

6. Initially the crank is at Inner Dead Centre(I.D.C.) and starts rotating in clockwise direction. As crank rotates, the piston moves towards right. Hence vacuum is created on the left side of the piston. The vacuum causes the delivery valve to be opened and liquid will come from sump to the cylinder. When crank reaches O.D.C., the piston is on right most position and the cylinder is full of liquid. SUCTION STROKE:

7. SUCTION STROKE:

8. DELIVERY STROKE: Now crank again rotates from O.D.C. to I.D.C in clockwise direction. As the crank rotates, the piston moves towards left. Hence the liquid will be compressed and high pressure will be created inside the cylinder. The high pressure will cause the delivery valve to be open and water will be discharge to delivery tank through discharge pipe. At the end of delivery stroke, the crank comes to I.D.C. and the cycle is repeated.

9. DELIVERY STROKE:

10. THANK YOU