Is the screw air compressor without oil and water lubrication single screw?

Oil-free water lubrication screw air compressor generally adopts single screw design. The main feature of this design is the use of pure water as the sealing and lubrication medium, thus ensuring that the output of compressed air is pure and oil-free. Due to the role of water lubrication and sealing, the temperature of this type of air compressor is usually only 40-50°C, achieving constant temperature compression, thereby improving the volumetric efficiency. Compared with the dry oil-free screw air compressor, its efficiency can be increased by 10% to 15%. However, the single screw design also has certain disadvantages, such as a relatively high failure rate. This is mainly due to the speed difference between the screw and the star wheel when the equipment is running, which makes the one-way compression of air easier, but also puts forward higher requirements for the durability of the equipment.

In general, the oil-free water lubrication screw air compressor usually adopts a single screw design. This design has its unique advantages, such as pure oil-free compressed air and high volumetric efficiency, which has significant advantages in some specific application fields. But with the continuous advancement of technology, there may be more innovative designs in the future to meet the needs of different industries.