About Hydraulic Accumulator: Definition, types, working principles, applications, Advantages and disadvantages

1. Welcome

2. Presentation on
Hydraulic Accumulator
Presented by
Md. Sakib hasan
ID:1605045
Reg:45141

3. Outline
Introduction
Classification
Main parts
Working principle
Applications
Advantages
Disadvantages

4. Hydraulic Accumulator
A device used for storing the energy of a liquid in the
form of pressure energy.

5. Main parts
• Fixed vertical cylinder
• Ram/Plunger
• Load/Weight
• Inlet(connect with Pump)
• Outlet (connect with Machine)

6. Types
Weight loaded accumulator
Piston type accumulator
Bladder type accumulator
Spring accumulator

7. Working principle
 In the beginning, the ram is at lowermost
position.
 During idle period, high pressure liquid is
supplied by the pump.
 Then pump admits this liquid in the hollow
space of cylinder, which raises ram, on
which heavy load is placed.
 Flow of liquid continues till the ram is at it’s
uppermost position.
 At this position, cylinder is full of water and
maximum amount of pressure energy is
accumulated.
 This energy is later discharged to the
driven machine, during it’s working stroke.

8. When machine requires large
amount of energy, the hydraulic
accumulator will supply this
energy and ram will move
downward direction.

9. Applications
• Agricultural Machinery & Equipment
• Energy power plants
• Plastic machinery
• Quick response
• High pressure and flows in a short time periods
• Oil field & Offshore
• Mining Machinery & Equipment
• Construction Equipment
• Suspension in vehicles

10. Advantages
• Lower installed system cost
• Reduce size of pump & electric motor
• Reduce equipment cost
• Maintenance cost is low
• Prolong components life
• Reduce leakage
• Improved performance of pump
• Reduce noise

11. Disadvantages
•Design is not good for high pressure & large volume
•Expensive to manufacture