The Characteristic Of Twin Screw Compressor

This Screw Compressor has many potential benefits, both in terms of physical size (smaller), the ability to produce vibra and its operation is less noisy.

In addition, Twin Screw Compressor is also more powerful and reliable at a more affordable cost than the Rotary Piston Compressor type.
In a Twin Screw Compressor, two rotors are seen interlocked rotating in opposite directions in one compressor chamber. A rotor can be symmetrical or an asymmetrical rotor. Both have higher performance.

Efforts to increase the number of lobes can increase the durability of a rotor. This leads to higher pressures in general. In the suction area of the compressor, gas is drawn into the suction hole in the chamber, and then will enter the cavity generated between the chamber wall and the two rotors.

As the rotor rotates in the opposite direction, the cavity becomes larger and starts moving forward. The aim is to attract more gas until the cavity passes through the suction hole. After passing this stage, the cavity starts to decrease in size as it moves forward. When the cavity reaches the discharge position, the gas is compressed by being pushed through the discharge hole in the chamber.

Valve Slide (the shift of a valve) has various situations to form the absorption and release position. This activity will serve as a controller between the volume and pressure ratio. Because the increase in pressure depends on the volume ratio, but for a certain volume ratio. The pressure ratio depends on the thermodynamic properties of the gas. An alternative way to control volume flow only, is to use variable speed control of the drive motor.

The technique of setting up several cavities in various stages compresses the air simultaneously. The most common drive arrangement is Male Rotor (The male rotor has fewer lobes than the female rotor, so it rotates faster) drives the Female Rotor. In this case, the number of cavities is equal to the number of lobes on the Male Rotor.