An air compressor is a device used to compress gas, so it is also called an air compressor. It is a device used to compress air and supply kinetic energy. The compressor is directly driven by a motor or a diesel engine. Compressed to a certain value, causing the cylinder volume to change, thereby generating aerodynamic power. Air compressors are similar in structure to pumps, most air compressors are reciprocating pistons, rotating vanes or rotating screws. Today, let us take a look at the working principle of the Atlas oil-free air compressor.

Working principle of Atlas oil-free air compressor

The Atlas oil-free air compressor is a miniature reciprocating piston compressor. When the motor single-shaft drives the compressor crankshaft to rotate, through the transmission of the connecting rod, the piston with self-lubricating without adding any lubricant reciprocates. The working volume composed of the inner wall of the cylinder, the cylinder head and the top surface of the piston changes periodically. During the initial movement of the piston of the piston compressor and the cylinder head, the working volume of the cylinder increases gradually.

At this time, the gas is pushed into the intake valve along the intake pipe and enters the cylinder until the working volume z is maximized and the intake valve is closed; the piston moves backward, the working volume in the cylinder decreases, and the pressure in the cylinder increases. When the pressure in the cylinder reaches and is slightly higher than the exhaust pressure, the exhaust valve is opened and the gas is discharged from the cylinder until the piston moves to the limit position and the exhaust valve is closed.

The above process is repeated, and when the piston moves backward again, the piston moves again. That is to say, the crankshaft of the piston-type oil-free air compressor rotates once, the piston reciprocates once, and the suction, pressure and exhaust are completed in the cylinder in sequence, that is, the working cycle is completed. The single-shaft double-cylinder structure design is selected, so that the gas flow of the compressor can reach twice that of the single-cylinder when the rated speed is kept on time, and the vibration and noise can be effectively suppressed.

When the motor is working, the air enters the compressor through the air filter, the compressor compresses the air, compresses the air through the airflow pipe, opens the one-way valve and enters the air storage tank, and the pressure gauge pointer rises to 8Bar accordingly. When the pressure switch senses that the pressure exceeds 8Bar, the motor will be automatically closed, and the solenoid valve will discharge the air pressure at the head of the compressor to 0. At this time, the pressure of the air switch indicates that the air pressure in the air storage tank is still 8Bar, and the gas is exhausted by the ball valve to drive the connection equipment to work. After the air pressure in the air storage tank drops, the pressure switch is automatically opened by induction, and the compressor starts to work again.

The above is the working principle of the Atlas oil-free air compressor. The Atlas oil-free air compressor is divided into two types, one is oil-free water lubrication, and the other is dry grinding. The working principle of the two is also Worlds apart.