The function of hydraulic accumulator

The purpose of the accumulator is to store the pressure oil in the hydraulic system and release it when necessary.Its main functions are shown in the following aspects:

The actuators of the hydraulic system with auxiliary power supply are intermittent action. The Tokyo instrument program pump has a very short total working time. Although the actuators of some hydraulic systems are not intermittent action.The speed difference within a working cycle (or one stroke) is very large.After installing the accumulator in such system, zhenhai hydraulic accumulator factory adopts a pump with smaller power, which reduces the power of the main drive and the size of the whole hydraulic system.When an emergency power source requires pump failure or power failure (the refueling of the actuator is suddenly interrupted) for a system, the actuator shall continue to complete the required work.

For example, the piston rod of a hydraulic cylinder must be indented for safety.In such cases, appropriate capacity is required as an emergency power source.

Supplement leakage and maintenance of constant voltage do not perform long operation for the executive components. The system of zhejiang hydraulic accumulator factory maintains a certain pressure to compensate leakage through the accumulator, so that the pressure is fixed.

After absorbing the hydraulic shock, the direction steering valve suddenly changes, because of the sudden stop of the hydraulic pump, the movement of the executive components suddenly stops, and even the need to artificially perform the emergency braking of the components, the liquid flow in the pipeline changes sharply, resulting in the impact pressure (oil shock).Safety valves are in place, but short-term surges and shocks of pressure are inevitable.This shock pressure often leads to the failure of the instruments, components and seals in the system, or even damage or pipe rupture, in addition to causing the system to produce significant vibration.If an accumulator is placed in front of a control valve or hydraulic cylinder impact source, the shock can be absorbed and mitigated.

Absorption pulse, ningbo hydraulic accumulator factory to reduce the noise pump pulse flow will cause pressure pulse, so that the movement speed of the executive components is not uniform, produce vibration, noise, etc..If the pump outlet in parallel response, small inertia accumulator, can absorb the flow and pressure pulse, reduce the noise.