Hydraulic accumulators are divided into two main types: bag accumulators and membrane accumulators. Each of these types has its own characteristics and uses:
Belderi accumulation (cyst)
Structure: It consists of a solid shell, a gas outlet and a flexible bag inside that separates the hydraulic fluid from the compressed gas1.
Function: When the hydraulic fluid enters the accumulator, it compresses the bag, compresses the gas and stores energy1.
Advantages:
High energy storage capacity,
excellent gas-liquid separation,
suitable for various applications, including industrial machinery and mobile equipment 1.
diaphragm buildup
Structure: It consists of a housing, a gas outlet and a flexible diaphragm that separates the gas from the hydraulic fluid.
Function: When the hydraulic fluid enters the accumulator, it compresses the diaphragm, compresses the gas and stores energy.
Advantages:
Simple and compact design,
fast response time,
suitable for medium pressures and small to medium volumes 2.
Both types of accumulators are used to maintain stable pressure in hydraulic systems and reduce pressure fluctuations, but the choice between them depends on the specific needs of the system and application.
What are the differences between other batteries?
In addition to the structural and functional differences mentioned above, accumulators also differ in other aspects:
1. Type of gas used
Gas accumulators: Usually use nitrogen as the compressed gas, which is non-reactive and safe1.
Spring accumulators: Use spring instead of gas to compress the liquid2.
2. Capacity and size
Piston accumulators: Suitable for large volumes and high pressures, but have a longer response time1.
Diaphragm and bellows accumulators: Suitable for small to medium volumes and medium pressures and have a fast response time1.
3. Applications
Weighted accumulators: Due to their large size and the large space they occupy, they are mostly used in central hydraulic systems1.
Spring accumulators: Due to the absence of gas leakage, they are used in applications that do not require high volume and pressure2.
4. How to install and maintain
Gas accumulators: They must be charged with nitrogen and must be carefully maintained to avoid gas leakage.
Spring batteries: They require less maintenance because they do not leak gas 2.
These differences will help you choose the right accumulator according to the specific needs of your hydraulic system. Do you have any other questions or need more information?
