Oil-free air compressor manufacturers tell you that air compressors are a device used to compress gases. The air compressor is similar in construction to the pump. Most air compressors are reciprocating pistons, rotating blades or rotating screws. Centrifugal compressors are very large applications.
There are many types of air compressors (air compressors).
1, according to the working principle can be divided into three categories: volumetric, dynamic (speed or turbine), thermal compressors.
2, according to performance can be divided into: low noise, variable frequency, explosion-proof and other air compressors.
3, according to the type can be divided into: fixed, mobile, closed.
Positive displacement compressors - compressors that rely directly on changing the gas volume to increase the gas pressure.
Piston Compressor - is a positive displacement compressor whose compression element is a piston that reciprocates within the piston air compressor cylinder.
Rotary Compressor - is a positive displacement compressor, compression is achieved by the forced movement of the rotating element.
The vane type compressor is a rotary type variable displacement compressor whose axial sliding piece slides radially on the eccentric rotor of 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 liquid acts as a piston to compress a gas and then discharge the gas.
The Roots double-rotor compressor is a rotary positive displacement compressor in which two Roots 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.
Speed Compressor - is a rotary continuous flow compressor in which blades that rotate at high speed accelerate the gas passing through it, thereby converting velocity energy into pressure. This conversion occurs on the rotating blades and partly on a fixed diffuser or return baffle.
Centrifugal Compressor - is a speed type compressor in which one or more rotating impellers (the blades are usually on the side) accelerate the gas. The main air flow is radial.
Axial compressors - are speed compressors in which the gas is accelerated by a rotor equipped with blades. The main air flow is axial.
Hybrid flow compressors - also speed compressors. The shape of the rotor combines some of the features of both centrifugal and axial flow.
Jet Compressor - Takes away the inhaled gas with a high velocity gas or steam jet and then converts the velocity of the mixed gas to pressure on a diffuser.
Permanent magnet inverter compressor——Because the frequency conversion screw air compressor utilizes the stepless speed regulation characteristic of the frequency converter, it can be smoothly started by the PID regulator inside the controller or the inverter; the occasion where the fluctuation of the gas consumption is relatively large And can quickly adjust the response.
Single-pole compression screw air compressor - the machine head is a screw air compressor consisting of a pair of male and female rotors. This model is currently widely used screw air compressor.
Bipolar compression screw air compressor - the machine head is composed of two pairs of yin and yang rotors. After the first stage compression, the gas enters the second stage compression, the compression ratio is high, the power is compared and the compression air compressor lowers one gear position.
Bipolar permanent magnet variable frequency air compressor - a new energy-saving product developed since 2014, combined with permanent magnet frequency conversion and bipolar compression technology, has high energy efficiency
The 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 two rotor meshes is greatly reduced, thereby compressing and discharging the gas. The screw compression assembly in the screw air compressor is manufactured inside the new CNC grinding machine and is equipped with on-line laser technology to ensure accurate manufacturing tolerances. Its reliability and performance ensure that compressor operating costs are extremely low over the life of the compressor. Adjustable compressors, integrated compressors and desiccant series are all new products in the L/LS series of compressors.
4, according to the use can be divided into: refrigerator compressors, air conditioning compressors, refrigeration compressors, oil field compressors, natural gas filling stations, rock drilling machines, pneumatic tools, vehicle brakes, door and window opening and closing, textile machinery Used, tire inflation, plastic machinery compressors, mining compressors, marine compressors, medical compressors, sandblasting paint.
5, according to the lubrication method can be divided into oil-free air compressor and oil lubrication air compressor.
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