An accumulator is a conteiner which is used to accumulate energy in the form of liquid under pressure ( thanks to compressed gas ) with the purpose of return it fast at the time wanted.

It presents differents applications like:

Accumulation of energy : used to multiply the delivery capacity and the power compared to the values of the motor pump

Damping of oscillations, balance of forces : used to compensate the pressure oscillations due to the operations of the machine                                                                               

Absorption of the aries' blow : used to damp pressure peaks generated by an abrupt opening or closing valves

Compensation of the expansions : used for absorb the volume increases due to the thermal expansion in piping or locked utilities, or else accidental movements of utilities subject to external forces

Reinstatement of lost volumes : used to restore the volumes of liquid lost by the leakage within utilities or valves

Pressure maintenance : used for the pressure maintenance in certain branches of the circuit even when the pump stops

Emergency command : used to intervene in case of dysfunction of the motor pump unit ( like brakes and locking systems )

Energy recovery: used to recover large energy slices in systems characterized by systematic braking phases

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