Types of air compressor
July 04,2022
There are many kinds of air compressors (air compressors).
- According to the working principle, it can be divided into three categories: volumetric compressor, dynamic compressor (speed compressor or turbine compressor), and thermal compressor.
- According to the lubrication method, can be divided into oil-free air compressors and oil-lubricated air compressors.
- According to the performance, it can be divided into low noise, variable frequency, explosion-proof, and other air compressors.
- It can be divided into refrigerator compressor, air conditioning compressor, refrigeration compressor, oil field compressor, natural gas filling station, rock drill, pneumatic tools, vehicle braking, door, and window opening, and closing, textile machinery, tire inflation, plastic machinery compressor, mining compressor, marine compressor, medical compressor, sandblasting, and painting.
- According to the type, it can be divided into fixed type, mobile type, and closed type.
Positive displacement compressor - a compressor that directly depends on changing the gas volume to increase the gas pressure.
A piston compressor is a positive displacement compressor. Its compression element is a piston, which makes reciprocating motion in the cylinder of the piston air compressor.
A rotary compressor is a positive displacement compressor. Compression is achieved by the forced movement of rotating elements.
A sliding vane compressor is a rotary variable volume compressor, whose axial sliding vane slides radially on the rotor eccentric with the cylindrical cylinder. The air trapped between the slides is compressed and discharged.
A liquid piston compressor is a rotary positive displacement compressor, in which water or other liquids are used as pistons to compress the gas, and then the gas is discharged.
Roots double rotor compressor is a rotary positive displacement compressor, in which two root rotors mesh with each other to intercept the gas and send it from the air inlet to the exhaust port. There is no internal compression.
A screw compressor is a rotary positive displacement compressor, in which two rotors with helical gears mesh with each other, so that the volume of the meshing part of the two rotors changes from large to small, to compress and discharge the gas. The screw compression components in the screw air compressor are manufactured internally by the latest CNC grinding machine and cooperate with online laser technology to ensure that the manufacturing tolerance is extremely accurate. Its reliability and performance can ensure that the operating cost of the compressor has been extremely low during its service life. Adjustment compressor, integrated compressor, and desiccant series are all new products in l/ls series compressors.
Speed compressor - it is a rotary continuous air compressor, in which the high-speed rotating blades accelerate the gas passing through it, to convert the speed energy into pressure. This transformation occurs partly on the rotating blades and partly on the fixed diffuser or reflux baffle.
Centrifugal compressor - a speed compressor in which one or more rotating impellers (blades are usually on the side) accelerate the gas. The main airflow is radial.
Axial compressor - a speed compressor in which the gas is accelerated by a rotor equipped with blades. The main airflow is axial.
Mixed flow compressor - also a speed compressor. The shape of its rotor combines some characteristics of centrifugal and axial flow.
Jet compressor - uses high-speed gas or steam jet flow to take away the inhaled gas, and then converts the speed of the mixed gas into pressure in the diffuser.
Permanent magnet variable-frequency compressor - because the variable-frequency screw air compressor uses the step-less speed regulation characteristics of the frequency converter, it can start smoothly through the controller or the PID regulator inside the frequency converter; It can quickly adjust and respond to occasions with large fluctuations in gas consumption.
Single pole compression screw air compressor - the machine head is a screw air compressor composed of a pair of male and female rotors. This type of screw air compressor is widely used at present.
Double pole compression screw air compressor - the machine head is composed of two pairs of male and female rotors. The gas enters the second stage compression after the first stage compression. The compression ratio is high, the power is low, and the compression air compressor is reduced by one gear.
Bipolar permanent magnet variable frequency air compressor - a new energy-saving product developed in 2014, combined with permanent magnet variable frequency and bipolar compression technology, has high energy-saving efficiency.
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