Hydraulic compressors, including piston, rotary vane, axial flow, liquid ring, and rotary screw compressors, are used to increase or decrease the pressure of liquids or gases. Piston compressors are basic and versatile, while rotary vane compressors are older and come in many shapes and sizes. Axial-flow compressors use multiple vanes for increased compression, liquid ring pumps use the volumetric principle and centrifugal acceleration, and rotary screw compressors use helical screws for permanent plumbing systems.
There are many types of hydraulic compressors which are used for various functions. These can include piston compressors, rotary vane compressors, axial flow compressors, liquid ring pumps and rotary screw compressors. Most hydraulic compressors are used to increase or decrease the pressure of a liquid or gas by physical processes. The variety of hydraulic compressors is the result of the many tasks that require the passage of gas or liquid at a specific pressure.
Piston compressors are often considered one of the basic types of hydraulic compressors. In these, a crankshaft moves a piston within a confined chamber and a liquid or gas is compressed by this piston into a smaller space. In the past, piston compressors were often used for pressurized hand tools and can still be used for certain types of tools. Many piston compressors are used in petroleum or natural gas plants because they are considered simple, effective and versatile.
Rotary vane compressors use rotating fan-shaped blades called vanes to compress hydraulic materials. Often considered one of the oldest forms of hydraulic compressors, rotary vane systems come in many different shapes and sizes and with various functions. The size and shape of the paddles usually determine how hard the pressure can be. Multiple vanes can also be combined to make more complex rotary vane compressors of any size.
Axial-flow compressors, for example, use multiple vanes to increase a machine’s compression capabilities. The design of these compressors means that axial flow systems are often used when compact pumps are required. An axial flow hydraulic compressor could also be used in high volume situations where a single rotary vane may not be sufficient.
A liquid ring pump, often powered by a motor, is similar to rotary vane compressors. These types of hydraulic compressors use the volumetric principle. The liquid is compressed to form a seal within a chamber, a process which creates space for hydraulic compression between the vanes connected to the rotor. Centrifugal acceleration plays an important role in this type of compression and as a result, liquid ring pumps often have to work in stages.
Rotary screw compressors use a combination of helical screws to change the pressure of gases and hydraulic materials. Coil screws are often designed to withstand significant speeds or extended use and are often preferred for permanent plumbing systems. As plumbing material passes through the screws, it is usually forced into a smaller gap, which increases the pressure.
Protect your devices with Threat Protection by NordVPN
