2026-04-27Views：
Screw air compressor to achieve gas-free effect, the key is to use water lubrication technology replace the traditional lubricating oil, from the source to prevent oil into the compressed air. The following is the specific implementation and the core principle of water lubricated air compressor:
traditional screw air compressor through lubricating oil to achieve the following functions:
water lubricated screw air compressor through water instead of lubricating oil, Complete the three functions of cooling, sealing and lubrication, as follows:
cooling: water directly absorbs heat
water has a high specific heat capacity and absorbs heat directly during compression without relying on lubricating oil. The compressed high-temperature water is cooled by an external cooling system (such as a cooling tower or a heat exchanger) and then recycled to ensure that the temperature of the compression process is controllable.
Seal: water film isolation gas
A uniform water film is formed on the surface of the rotor to fill the gap and prevent the leakage of compressed gas. Water has a low viscosity, but through precise rotor design (such as screw profile optimization), it can still achieve efficient sealing without residue or deterioration like oil.
Lubrication: water reduces friction
water forms a lubricating layer on the surface of the rotor, reducing the friction of direct metal contact. Although the lubricity of water is not as good as oil, by optimizing the rotor material (such as high wear-resistant alloy) and surface treatment process, long-term stable operation can be ensured without worrying about oil contamination.
independent waterway system
the water-lubricated air compressor is equipped with an independent water circulation system, which is completely isolated from the compressed air. The water is recycled in a closed loop, and only a small amount of water lost by evaporation needs to be replenished periodically to avoid the entry of external impurities.
efficient gas-water separation
the compressed air will carry a trace of water vapor, which needs to be completely removed by a dryer (such as a refrigerated dryer and a suction dry dryer) to ensure that the air is dry and oil-free.
Corrosion resistance of materials
the parts in contact with water (such as rotor, casing and pipeline) shall be made of corrosion-resistant materials (such as stainless steel) to prevent rust or impurities from affecting air quality after long-term use.
real-time monitoring
the oil content in the gas is continuously monitored by the oil detector to ensure that it is always below the industry standard (e. g. the medical industry requires oil content <0.01 mg/m & sup3;).
Regular maintenance
Through the above design, the water-lubricated screw air compressor realizes the real "gas-free oil", and provides a reliable solution for the industry with extremely high air quality requirements.
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