Water lubricated air compressor should avoid magazines entering the air compressor head

The main features of Grantklin oil-free screw air compressor are: reasonable structure, ideal force balance; no radial and axial force during operation, only rotational force. Single-stage compression ratio is high, the shape of the structure size is small: high speed light load, easy to establish hydrodynamic lubrication.

Water-lubricated single-screw air compressor is an oil-free air compressor series. Water is used as a lubricant to fundamentally solve the problem of environmental pollution caused by lubricating oil.

Compared with other oil-free air compressors, it has the advantages of simple and compact structure: low speed, low vibration and noise: low exhaust temperature: high thermal efficiency: stable and reliable performance, and low specific power. It is the development trend of new oil-free oil machines.

its working principle is to continuously inject lubricating water into the compression chamber and bearings during the compression process through the pressure difference generated by the compressor itself. This design has the following characteristics:

the injected lubricating water can form a water film with a certain rigidity between the rotor, the star wheel and the casing, and the star wheel is directly driven by the main rotor. The lubricating water directly lubricates the graphite bearings at both ends of the star wheel.

The injected lubricating water can achieve the airtight effect, which is better than the general dry screw compressor.

Lubricating water can absorb a large amount of compression heat, improve the compression efficiency, and avoid the possibility of friction or jamming due to different thermal expansion coefficients between the rotor, star wheel, and casing.

The lubricating water also reduces noise due to high frequency compression. This change will change the gap between the screw and the screw, the screw and the host housing and the front and rear end faces.

The clearance change is normal and allowable during the bearing life, and the resulting air compressor gas production attenuation and drive motor load increase is also normal and allowable. However, when the screw air compressor parts bearing wear and the host fit clearance exceeds the allowable limit, serious consequences may occur.

For example, if a piece of iron filings one millimeter thick goes in, it may get stuck. First of all, friction will occur between the screw inside the main engine and the front and rear end faces, and between the screw and the main engine housing, and the motor load will increase sharply. The serious consequence is that the screw locks up and even the main engine head is scrapped due to friction and adhesion between the screw end face and the assembly end face; If the motor protection response is not sensitive or fails, the motor may be overloaded and burned.

secondly, the large attenuation of the air compressor gas production may affect the normal production of the gas unit. There are too many impurities in the air compressor.

Granklin oil-free and water-lubricated screw air compressor The water-lubricated air compressor of our company uses purified water suitable for Qin's standard, and the parts materials used are international standard grades 304 and 316 stainless steel.

Nano silicon carbide and ceramic bearings, directly lubricated with water, have good oxidation resistance, corrosion resistance, and good lubrication performance.

The system uses pure water suitable for standard use, and the water circulates in the system all the time: and the system automatically changes water every 200 hours to ensure that the calcium content in the water is stable at a low value, and the operating temperature of the main engine is not higher than 50 degrees, so there is no risk of fouling.

After the air is compressed, its water content has reached saturation. The water content of compressed air is only related to temperature and has nothing to do with others. The temperature of compressed air produced by water lubrication unit is not higher than 50 degrees, and its water content is saturated at 50 degrees. As the exhaust temperature of other types of compressors is higher than 50 degrees, the water content of compressed air of water lubrication unit is lower than that of other types of compressor units.

Granklin oil-free lubrication screw air compressor has low maintenance cost and is widely used in health, textile printing, painting, electronic instruments, sandblasting, nitrogen production, chromatographic analysis, food processing, PTEE bottle blowing and other fields.