Air compressors can be divided into the following three types according to the working principle: piston air compressor, screw single-stage compression air compressor, centrifugal compressor, today we will look at the following three air compressors Their respective working principles:
1] The principle of the piston air compressor : After the drive machine is started, the crankshaft is rotated by the triangular tape to convert the crankshaft mechanism into a piston to reciprocate in the cylinder. When the piston moves from the lateral axis of the cover, the cylinder volume increases, the cylinder pressure is lower than the atmospheric pressure, the outside air passes through the filter, and the suction valve enters the cylinder; after reaching the bottom dead center, the piston moves from the shaft side to the cover side. The suction valve is closed, the cylinder volume is gradually reduced, the air in the cylinder is compressed, and the pressure is increased. When the pressure reaches a certain value, the exhaust valve is opened, and the compressed air enters the gas storage tank through the pipeline, so that the compressor is repeated. The ground works continuously to deliver compressed air to the gas tank, so that the pressure inside the tank is gradually increased to obtain the required compressed air.
2] The screw type single-stage compression air compressor is rotated by a pair of parallel male and female rotors (or screws) in the cylinder, so that the air between the rotor slots continuously generates periodic volume changes, and the air is It is transported from the suction side to the output side along the rotor axis to realize the whole process of suction, compression and exhaust of the screw air compressor. The air inlet and the air outlet of the air compressor are respectively located at two ends of the housing, and the slots of the female rotor and the teeth of the male rotor are driven to rotate by the main motor.
The compressor is directly driven by the electric motor to cause the crankshaft to rotate, and the connecting rod is caused to reciprocate the piston, causing the cylinder volume to change. Due to the change of the pressure in the cylinder, the air is passed through the air cleaner (muffler) into the cylinder through the intake valve. During the compression stroke, the compressed air passes through the exhaust valve due to the reduction of the cylinder volume, and the exhaust pipe is single. The valve (check valve) enters the gas storage tank and is automatically stopped when the exhaust pressure reaches the rated pressure by the pressure switch.
3] works centrifugal compressor is the gas into the impeller of a centrifugal compressor, the impeller blades under the action of a high speed rotation of the impeller along the side, while at the outlet flow of the impeller rotating centrifugal force, and by the impeller The pressure and kinetic energy of the diffusing action are improved. After the gas enters the diffuser, the kinetic energy is further converted into pressure energy. The gas is further compressed by the curve and the return flow into the lower impeller, so that the gas pressure reaches the process. Required requirements.
1] The principle of the piston air compressor : After the drive machine is started, the crankshaft is rotated by the triangular tape to convert the crankshaft mechanism into a piston to reciprocate in the cylinder. When the piston moves from the lateral axis of the cover, the cylinder volume increases, the cylinder pressure is lower than the atmospheric pressure, the outside air passes through the filter, and the suction valve enters the cylinder; after reaching the bottom dead center, the piston moves from the shaft side to the cover side. The suction valve is closed, the cylinder volume is gradually reduced, the air in the cylinder is compressed, and the pressure is increased. When the pressure reaches a certain value, the exhaust valve is opened, and the compressed air enters the gas storage tank through the pipeline, so that the compressor is repeated. The ground works continuously to deliver compressed air to the gas tank, so that the pressure inside the tank is gradually increased to obtain the required compressed air.
2] The screw type single-stage compression air compressor is rotated by a pair of parallel male and female rotors (or screws) in the cylinder, so that the air between the rotor slots continuously generates periodic volume changes, and the air is It is transported from the suction side to the output side along the rotor axis to realize the whole process of suction, compression and exhaust of the screw air compressor. The air inlet and the air outlet of the air compressor are respectively located at two ends of the housing, and the slots of the female rotor and the teeth of the male rotor are driven to rotate by the main motor.
The compressor is directly driven by the electric motor to cause the crankshaft to rotate, and the connecting rod is caused to reciprocate the piston, causing the cylinder volume to change. Due to the change of the pressure in the cylinder, the air is passed through the air cleaner (muffler) into the cylinder through the intake valve. During the compression stroke, the compressed air passes through the exhaust valve due to the reduction of the cylinder volume, and the exhaust pipe is single. The valve (check valve) enters the gas storage tank and is automatically stopped when the exhaust pressure reaches the rated pressure by the pressure switch.
3] works centrifugal compressor is the gas into the impeller of a centrifugal compressor, the impeller blades under the action of a high speed rotation of the impeller along the side, while at the outlet flow of the impeller rotating centrifugal force, and by the impeller The pressure and kinetic energy of the diffusing action are improved. After the gas enters the diffuser, the kinetic energy is further converted into pressure energy. The gas is further compressed by the curve and the return flow into the lower impeller, so that the gas pressure reaches the process. Required requirements.
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