The function and main use of hydraulic accumulator：
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The function and main use of hydraulic accumulator: 1. To store energy, emergency hydraulic accumulators are widely used as auxiliary energy and are used in combination with pressure relays. In intermittent working situations, they can be used as auxiliary energy to achieve miniaturization of hydraulic pumps and save energy, such as the tilt hydraulic system of steelmaking furnaces in steel plants. . 2. Absorb pulsation and stabilize the system. The liquid discharged by the hydraulic pump has large pulsation. This pulsation will cause noise and vibration in the hydraulic system and destroy the working stability of the system. Using an accumulator at the outlet of the hydraulic pump can effectively attenuate the pulsation and make the device work smoothly, which is important in some precision equipment. 3. Absorb impact and protect the circuit. In the hydraulic circuit, a drastic change in load occurs due to the rapid closing of the hydraulic valve; this drastic change will produce a large instantaneous impact pressure, which will damage pipelines, connecting joints or other hydraulic components, and produce severe vibration and noise; using an accumulator can effectively mitigate the impact and protect the hydraulic device. For example, the accumulators used in the hydraulic systems of die-casting machines and high-altitude concrete conveyors embody this function very well. 4. Thermal expansion reduction and leakage compensation In a pressure-controlled closed loop, the use of an accumulator can effectively compensate for the pressure drop caused by temperature drop, internal leakage or external leakage; it can also effectively control the pressure rise caused by the temperature rise, thereby making the system work stably. 5. Absorb vibration, and the capsule in the vibration-damping balance accumulator is filled with gas and can act as a gas spring, which can absorb mechanical vibrations from the driving and suspension systems of cars, hoists, mobile cranes, etc., and maintain the stability of the vehicle. 6. Liquid or liquid-gas separated transmission uses an accumulator to realize energy transfer between two incompatible liquids or liquid and gas for isolated transportation.
Supplement the structure of the accumulator: There is a diaphragm-like structure inside. One side of the diaphragm is inflated and the other side is connected to the process medium. Shock absorption, buffering and emergency response through the expansion and contraction of the elastic diaphragm
Main purpose: First, it is used to store pressure and energy. ； It is used as a power source during emergency operations to provide sufficient pressure oil in a short time. Our factory adds two backup accumulators to the two-way hydraulic system. Normally, they are closed to maintain pressure. Once the system trips and the pump station loses power, the emergency accumulator is immediately opened to reset each valve for a short time and open the furnace cover to relieve pressure. The second is to be used as a pressure buffer, that is, to absorb the hydraulic pulse of the oil cylinder and alleviate the impact force.