Compressed air can be used as power, mechanical and pneumatic tools, as well as control instruments and automation devices, instrument control and automation devices, such as tool replacement in machining centers.
2. It can be used for gas transportation.
Air compressors are also used for pipeline transportation and gas bottling, such as long-distance transportation of gas and natural gas, and bottling of chlorine and carbon dioxide.
3. Used for gas synthesis and polymerization.
In chemical industry, some gases are pressurized by compressor, which is beneficial to the synthesis and polymerization of butadiene. For example, the atmosphere and hydrogen synthesize helium, hydrogen and carbon dioxide synthesize methanol, and carbon dioxide and ammonia synthesize urea. While polyethylene is produced under high pressure.
4, used for refrigeration and gas separation
Gas is liquefied by compression, cooling and expansion of air compressor, which is used for artificial refrigeration. This kind of compressor is usually called an ice maker or an ice maker. If liquefied gas is a mixed gas, each group can be separated in a separation device to obtain various gases with qualified purity. For example, the separation of petroleum pyrolysis gas is compressed first, and then the components are separated at different temperatures.
Extended data
The full name of air compressor is air compressor, which is the main body of air source device. It is a device that converts the mechanical energy of prime mover (usually motor) into gas pressure energy, and it is a pressure generator of compressed air.
There are many kinds of air compressors, which can be divided into positive displacement compressors, reciprocating compressors and centrifugal compressors according to their working principles.
Now commonly used air compressors are piston air compressor, screw air compressor, centrifugal air compressor, vane air compressor and scroll air compressor.
Screw air compressor is a kind of positive displacement compressor, and the air compression is realized by the volume change of male and female rotor cogging in the shell. The male and female rotors rotate in the casing which is precisely matched with them, so that the gas between the tooth grooves of the rotors constantly produces periodic volume changes and is pushed from the suction side to the exhaust side along the rotor axis, thus completing the working processes of suction, closed transportation, compression and exhaust.
Scroll compressor is made up of dynamic and static scroll plates and two double function equation lines meshing with each other. In the process of air intake, compression and exhaust, the static disk is fixed on the frame, and the dynamic disk is driven by the eccentric shaft and limited by the anti-rotation mechanism, and rotates around the center of the base circle of the static disk with a small radius. Gas is sucked into the periphery of the fixed disk through the air filter element. With the rotation of the eccentric shaft, the gas is gradually compressed in several crescent-shaped compression cavities formed by the occlusion of the fixed disk, and then continuously sent out from the axial hole in the central part of the fixed disk.
References:
Baidu encyclopedia-air compressor