Description

Description

What is a hydraulic accumulator?

In general, pressure changes and maintenance of system pressure in a uniform state are the responsibility of the accumulator.
Accumulators are used in various cases in the industry, including the following

1- As a source of power

2- Catching pump oscillations

3- Absorption of pressure shocks

4- Shock absorption property in cars

5- Power balancer

6- Compensator of thermal expansion

Accumulators are available in three general types: weighted, spring, gas (piston, diaphragm and bag).
 
Weight accumulator:

This type of accumulator is one of the oldest types of accumulators in which a heavy weight has been used to supply potential energy. One of the advantages of these accumulators is that in the entire course of the piston, a constant pressure will be applied to the fluid.
 

آکومولاتور وزنه ای

آکومولاتور فنری

Spring accumulator:

In this type of accumulator, a compressed spring is used for loading. A spring accumulator is used for low pressure and flow because its dimensions increase at high pressures and flow rates.

Below we see the volume-pressure diagram and the schematic symbol of the spring accumulator.
 
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