Which is better, single screw air compressor or twin screw air compressor

single screw air compressor and twin screw air compressor which is good?

Below we analyze.

Principle: The single screw air compressor uses a single screw rotor to drive two symmetrically distributed star wheels to rotate, relying on the spiral groove and the inner wall of the shell to form a closed basic volume, so that the gas can reach the required pressure.

The twin-screw air compressor consists of a pair of meshing rotors distributed in parallel. One rotor rotates clockwise and the other rotates counterclockwise, generating the required compressed air during the meshing process. The utility model has high mechanical reliability, good dynamic balance and strong applicability.

Technically, single screw air compressors are not as mature as twin screw air compressors. Single screw air compressor with two star wheel single screw connection compression.

Direct contact between the three parties causes wear of the star wheel and the rotor, resulting in short service time, large leakage inside the machine head and reduced exhaust. The female and male rotors are connected by twin screws, and there is an oil film between the two rotors and there is no direct contact. The friction force is small and the displacement does not change with time.

Motor: The main motor of the single screw air compressor is an ordinary motor, and the main motor of the double screw is an energy-saving motor, which makes the bearing of the single screw motor wear seriously and increases the operating cost.

Maintenance cost: Screw electric air compressor manufacturers believe that although the purchase cost of single screw air compressor is low, the friction between the star wheel and the rotor is large, and the star wheel needs to be replaced. The maintenance cost and operating cost are naturally high, otherwise the return air loss is serious and cannot meet the specified requirements.

Although the procurement cost of the twin-screw air compressor is high, the equipment is stable, the operation is stable, and the applicability is strong.

If the gas requirements are high, the preferred is a single screw air compressor. At present, the main single screw air compressor on the market is the use of water lubricated single screw air compressor, gas cleanliness is higher.