Functions of Hydraulic Accumulators

The function of an accumulator is to store pressure oil in a hydraulic system and release it again when needed. Its main functions are manifested in the following aspects:

In a hydraulic system with an auxiliary power source, the actuating components operate intermittently, and the total working time of the Tokyo instrument solution pump is very short. In some hydraulic systems, although the actuating components do not operate intermittently, the speed difference within one working cycle (or one stroke) is very large. After installing an accumulator in this type of system, a pump with lower power can be used, which reduces the power of the main drive, the size and weight of the entire hydraulic system, and is inexpensive. 2. Emergency power source: For a certain system, when the pump fails or the power is cut off (the oil supply to the actuating components is suddenly interrupted), the actuating components should continue to complete the required work.

For example, for safety reasons, the piston rod of the hydraulic cylinder must be retracted into the cylinder. In this case, an appropriate capacity is required as an emergency power source.

Compensate for leakage and maintain constant pressure. For systems where the actuating components do not operate for a long time, the Zhejiang hydraulic accumulator factory maintains a certain pressure by using an accumulator to compensate for leakage, thereby keeping the pressure constant.

After absorbing hydraulic shock, the directional valve is suddenly switched. Due to the sudden stop of the hydraulic pump, the sudden stop of the movement of the actuating component, or even the need for emergency braking of the actuating component by human intervention, the liquid flow in the pipeline changes sharp, thereby generating shock pressure (oil hammer). Although a safety valve is installed in the system, short-term pressure surges and shocks are inevitable. This kind of shock pressure often causes failures in instruments, components, and sealing devices in the system, or even damage or pipeline rupture. In addition, it will also cause obvious vibration in the system. If an accumulator is installed in front of the control valve or the hydraulic cylinder shock source, it can absorb and mitigate this shock.

Absorb pulsation, Ningbo hydraulic accumulator factory reduce noise. The pulsating flow of the pump will cause pressure pulsation, making the movement speed of the actuating components uneven and generating vibration, noise, etc. If a sensitive and low-inertia accumulator is connected in parallel at the pump outlet, it can absorb the pulsation of flow and pressure and reduce noise.