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The energy accumulator can be divided into several categories according to its use |
| Author：FA Date：9/18/2018 5:56:08 AM |
The energy accumulator can be divided into several categories according to its use 1. Auxiliary power source
Provides an auxiliary energy source, which stores energy that can be used at peak times to select smaller pumps. With a smaller pump, a large amount of pressure oil can also be supplied in an instant.
To maintain a steady flow and pressure in the hydraulic system.
Is to replenish the liquid volume to maintain a certain pressure.
To act as an emergency source of power when the hydraulic unit breaks down, stops the pump, or power goes out, in order to safely complete a work cycle, such as for the ship's hydraulic rudder.
To keep the system at a necessary high pressure for a long time without pumping to prevent overheating and reduce pump wear and save energy.
Maintenance system pressure: to replenish oil leakage in the hydraulic system, or equipment used to maintain constant pressure when the hydraulic pump is shut down for a long period of time.
Actuation secondary loop: when the primary loop is stopped due to adjustment and maintenance, the hydraulic energy of the accumulator can be used to drive the secondary loop.
Stable pressure: in the closed loop, the liquid expands due to the rising oil temperature, and the high pressure can be absorbed by the accumulator, which also compensates for the reduction of oil amount due to the volume change.
Is used to provide an unbroken but low flow lubricant to the severely worn area of the equipment. Construction projects, mining equipment for emergency operation and braking.
Is used in the operation of injection moulding equipment to provide high pressure in a short period of time.
The machine is used to maintain pressure in order to use a small-scale oil pump.
Supply oil on the turbine.
The blowout preventer on the well and the well head is used as the backup power to close the gate.
Fluid storage, emergency energy, pressure compensation, leakage compensation, thermal expansion absorption, increased flow.
For intermittent load, can reduce the transmission power of hydraulic pump. When the hydraulic cylinder needs more oil, the accumulator and the hydraulic pump simultaneously supply oil; When the hydraulic cylinder is not working, the hydraulic pump fills the accumulator with oil, and the hydraulic pump stops running after reaching a certain pressure.
2. Absorption pulsation
Drain absorbs the pressure pulsation of the hydraulic pump.
Shock absorber, plunger/diaphragm pump and other equipment to reduce vibration.
Surge noise attenuation, plunger/diaphragm pump and other equipment to reduce noise.
Surge plunger/diaphragm pumps and other equipment to reduce energy consumption.
Surge to make the output pressure of equipment such as plunger/diaphragm pump more stable and balance the oil pressure fluctuation of pipeline.
3. Absorb shock
To absorb sudden and violent shocks to the system caused by pressure changes.
Is the water hammer phenomenon caused by the rapid closing and direction change of the relief valve.
To reduce vibration and loss due to pressure changes in the piping system.
To absorb shock vibrations in a liquid flow path to minimize damage to pipes, devices, and meters, thus saving money.
Hydraulic transmission is used to reverse the impact absorption.
The equipment such as forklift truck and vehicle lifting platform is used to play a damping role in pressure sudden change.
The aircraft carrier is used to absorb the impact of the aircraft landing on the lasso.
, flow control, mechanical balance.
For the energy storage of moderate impact, we should choose the energy storage of small inertia, such as Tobul air storage. Install as close to impact as possible in general, and install vertically, oil mouth down. True in the position limit, vertical installation impossible, then horizontal installation. The above:The important role of energy storage in hydraulic system |
