The Four Major Functions of Piston Accumulators

The piston accumulator belongs to the high-pressure piston mode, and when designing this product, it needs to involve the technical field of hydraulic auxiliary components. Therefore, this equipment can not only solve the pressure problem of other energy storage equipment, but also extend its service life. So do you know what features this product has? Today we will introduce the four major features of this product.

The piston type accumulator can separate gas and liquid through the piston, and there is a sealing design between the piston and the cylindrical inner wall, so the oil is not prone to oxidation. This product has a relatively simple structure, simple installation and use, convenient maintenance, long service life, and relatively light weight, which is deeply loved by some users. However, it also has a certain defect, which is its poor reaction sensitivity, so it is not suitable for low-pressure absorption pulse.

The main functions of this product include energy storage, hydraulic shock absorption, pulsation elimination, and energy recovery. The following is an analysis.

  1. Store energy.

In practical applications, energy storage can be further divided into:

(1) As an auxiliary power source, it can effectively reduce the installed capacity.

(2) Compensation for leakage function.

(3) Used as compensation for thermal expansion.

(4) As a source of emergency power.

(5) Form a constant pressure oil source.

The basic principles of these five functions are the same, all utilizing the enormous energy storage function of the product itself, but there are also subtle differences. The main difference is that the parameter selection is different. By using different parameter selection formulas, any of the above five functions can be achieved to meet the needs of different occasions.

The Four Major Functions of Piston Accumulators

  1. Absorb hydraulic shock.

When the directional valve suddenly changes direction and the actuator stops suddenly during movement, it can cause pressure shock in the hydraulic system, causing a rapid increase in system pressure in a relatively short period of time, causing damage to instruments and instruments, and generating noise and vibration.

In order to absorb noise and vibration, energy storage equipment should be installed near impact sources such as control valves or hydraulic cylinders, in order to effectively absorb noise and buffer hydraulic impacts.

  1. Eliminate pulsation and reduce noise.

For hydraulic systems that use plunger pumps and have relatively few plungers, periodic changes in pump flow can cause vibrations in the system. Installing energy storage equipment can absorb a large amount of energy from pulsating pressure and flow, allowing it to flow in the same cycle of flow pulsation.

Once the instantaneous flow rate is higher than the average flow rate, the higher part of the oil can be absorbed by the energy storage equipment. The lower part of the flow rate can be supplemented in a timely manner by the energy storage equipment, thereby absorbing pulsating energy, reducing pulsation, and reducing damage to instruments caused by pulsation.

Piston accumulator

  1. Recover energy.

This is also an area where the product is commonly used. Recycling excess energy can effectively improve energy utilization and is an important way to achieve energy conservation. This product can temporarily store energy for future use when needed. The main research in this area includes:

(1) Recover the energy generated during vehicle braking.

(2) The potential energy of the boom mechanism of recycling engineering machinery;

(3) The braking energy generated during the recovery of the hydraulic excavator turntable.

(4) The gravitational potential energy generated when the oil workover rig and drilling rig pipe fall is recovered.

(5) The gravitational potential energy generated during the downward movement of the recycling elevator.

From the above content, it can be seen that the four major functions of piston type accumulators are energy storage, hydraulic shock absorption, pulsation elimination, and energy recovery. Each function can generate huge economic benefits, so this product is reused in many industries.