Answer to Question #288867 in Mechanical Engineering for dudu

Question

Explain with practical examples the nature of the application of

hydraulic accumulators and jacks in your context. 

Answer 1

Hydraulic accumulators are used in a broad range of sectors to store energy, maintain pressure, absorb vibrations, pulsations, and shocks, among other things. Accumulators can absorb, store, and release energy in the form of pressured fluid to enhance the efficiency of your hydraulic system.

Bottle jacks can raise up to 50 tons and may be used to lift a wide range of items. Typical applications include vehicle repair and building foundations. Larger, heavier-duty versions may be referred to as barrel jacks. This jack is best suited to short vertical lifts.

Accumulators can be applied creatively in any number of situations, including:

• Emergency and safety: An accumulator which is kept constantly under pressure is valuable in the event of an electrical power failure as it can provide the flow and pressure necessary to perform an additional function or complete a machine cycle.
• Shock or pulsation dampening: An accumulator can be used to cushion the pressure spike from sudden valve closure, the pulsation from pumps or the load reaction from sudden movement of parts connected to hydraulic actuators.
• Leakage compensation: An accumulator can be used to maintain pressure and make-up for fluid lost due to internal leakage of system components including cylinders and valves.
• Thermal expansion: An accumulator can absorb the pressure differences caused by temperature variations in a closed hydraulic system.
• Energy conservation: An accumulator can be used to supplement a pump during peak demand thereby reducing the size of the pump and motor required. The accumulator is charged during low demand segments of the pump cycle time and then discharges during the high demand portions of the circuit.
• Noise reduction: An accumulator is effective at reducing hydraulic system noise caused by relief valves, pump pulsations, system shock and other circuit generated noises.
• Improved response times: An accumulator (bladder type) has virtually instantaneous response time that can provide fluid very quickly to fast-acting valves such as servos and proportionals to improve their effectiveness.