Liquid-Ring Vacuum Pump

A Liquid-Ring Vacuum Pump china liquid ring vacuum pump is simple to operate and can be used in a number of applications across various industries. A liquid ring pump works with a sealant required in its procedure. This liquid can be water, essential oil or any various other solvent which is rotated by an impeller within the casing of the pump.

As the shaft turns, a liquid ring is established by the centrifugal force produced by the rotating impeller. This pressure holds the liquid ring against the inner wall of the pumping chamber. Because the impeller is located eccentric to the pumping chamber, the depth of access of the blades in to the liquid ring decreases and increases as the impeller rotates. This creates increasing cellular volume on the inlet port side, creating vacuum.

On the discharge interface side, the impeller cell volume decreases as the blades move further into the liquid ring. This increases the pressure until discharge takes place through the discharge interface.

A continuing flow of new sealing liquid comes to the pump via the sealing-liquid inlet.

Regarding the two-stage liquid ring pump, the discharge from the initial stage does not discharge to atmosphere. Rather, the first stage discharges through the manifold leading to the second stage as well as through a discharge port positioned in the intermediate plate between the first- and second-stage impellers.

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