The working principle of oil injected air compressor is mainly based on the principle of volumetric compression, and multiple functions such as cooling, sealing and lubrication are achieved by injecting lubricating oil. The following is a detailed explanation of its working principle:
Oil injected air compressor increases the pressure of gas by reducing the volume of the space occupied by gas. This is usually achieved by one or more pistons reciprocating in the cylinder. When the piston moves in a certain direction, it reduces the space in the cylinder, thereby compressing the gas therein. At the same time, the compressor also assists this process by injecting lubricating oil, which not only lubricates, but also helps seal the gas in the cylinder to prevent it from leaking and take away the heat generated during the compression process.
Intake stage: When the piston moves away from the cylinder head, the space in the cylinder increases, forming a negative pressure, so the outside air is sucked into the cylinder through the intake valve.
Compression stage: As the piston moves toward the cylinder head, the space in the cylinder gradually decreases, the gas is compressed, and its pressure gradually increases. In this process, lubricating oil is injected into the cylinder and mixed with the gas to play a role in lubrication, sealing and cooling.
Exhaust stage: When the piston moves to a certain position, the compressed gas pressure reaches the preset value, at which time the exhaust valve opens, and the compressed gas is discharged from the oil injected air compressor through the exhaust pipe.
Lubrication: Lubricating oil can reduce the friction between the piston and the cylinder wall, reduce wear, and extend the service life of the compressor.
Sealing: Lubricating oil can form an oil film between the piston and the cylinder wall to prevent gas leakage and improve compression efficiency.
Cooling: Lubricating oil can take away the heat generated during the compression process to prevent the compressor from overheating.
Regularly replace lubricating oil: Since the lubricating oil will continuously mix with the gas and be discharged during the compression process, it is necessary to replace new lubricating oil regularly to ensure the normal operation of the oil injected air compressor.
Keep clean: The oil stains and impurities inside the compressor should be cleaned regularly to prevent them from affecting the performance and life of the compressor.
Regular inspection and maintenance: The various components of the compressor, such as the piston, cylinder, intake valve and exhaust valve, should be checked regularly to ensure that they are in good working condition.
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