3.2.6. Liquid ring compressor


Fig. 3.12: Symbol for liquid ring compressor
The liquid ring compressor belongs to the category of rotary displacement compressors.

The eccentrically borne shaft in the housing with fixed radial paddle displaces the sealing liquid during rotation. This forms the liquid ring that seals the spaces between the paddles against the housing.

The content of the chamber is changed by the rotation of the shaft, causing air to be inducted, compressed and transported.

The liquid generally used is water.

Fig. 3.13: Op. diagram of liquid ring compressor
    • Oil-free air ( through oil-free transport medium).
    • Low sensitivity to soiling and chemicals.
    • Liquid disperser required because auxiliary liquid is forced continually into the pressure chamber.
    • Low degree of efficiency.