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    Home > Active Ingredient News > Drugs Articles > Analysis on the working principle of different classification of air compressor

    Analysis on the working principle of different classification of air compressor

    • Last Update: 2013-06-19
    • Source: Internet
    • Author: User
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    According to the working principle, the air compressor can be divided into the following three types: piston type air compressor, screw type single-stage compression air compressor and centrifugal compressor Today, let's take a look and briefly analyze the working principle of the following three types of air compressor: 1) piston type air compressor Principle: after the driving machine is started, it drives the crankshaft of the compressor to rotate through the triangular belt, and then converts the piston into reciprocating motion in the cylinder through the crank rod mechanism When the piston moves from the cover side to the shaft, the volume of the cylinder increases, the pressure in the cylinder is lower than the atmospheric pressure, and the outside air enters the cylinder through the filter and the suction valve; when it reaches the bottom dead center, the piston moves from the shaft side to the cover side, the suction valve closes, the volume of the cylinder decreases gradually, the air in the cylinder is compressed, and the pressure increases When the pressure reaches a certain value, the exhaust valve is opened, and the compressed air flows through the pipe The road enters into the air tank, so the compressor works repeatedly, continuously delivers compressed air to the air tank, gradually increases the pressure in the tank, so as to obtain the required compressed air 2) the screw type single-stage compression air compressor is a pair of parallel toothed male and female rotors (or screws) rotating in the cylinder, so that the air between the rotor teeth constantly produces periodic volume change, and the air is transported from the suction side to the output side along the rotor axis, so as to realize the whole process of suction, compression and exhaust of the screw type air compressor The air inlet and outlet of the air compressor are respectively located at the two ends of the shell The groove of the female rotor and the tooth of the male rotor are driven by the main motor and rotate The compressor is directly driven by the motor, which causes the crankshaft to rotate and the connecting rod to cause the piston to move back and forth, causing the change of cylinder volume Due to the change of the pressure in the cylinder, the air will enter the cylinder through the air filter (muffler) through the intake valve During the compression stroke, due to the reduction of the cylinder volume, the compressed air will enter the air tank through the exhaust pipe and the check valve (check valve) When the exhaust pressure reaches the rated pressure, it will be automatically stopped by the pressure switch 3] centrifugal compressor The working principle is that after the gas enters the impeller of the centrifugal compressor, under the action of the impeller blade, it rotates with the impeller at a high speed, and at the same time flows to the outlet of the impeller under the action of the rotating centrifugal force Under the pressure expanding action of the impeller, its pressure energy and kinetic energy are increased After the gas enters the diffuser, the kinetic energy is further converted into pressure energy, and the gas passes through the bend the reflux device flows into the next impeller to further compress, so as to make the gas pressure meet the requirements of the process.
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