A liquid ring vacuum pump is easy to operate and is utilized in a number of applications across various industries. A liquid band pump works with a sealant required in its procedure. This liquid could be water, oil or any additional solvent which is certainly rotated by an impeller within the casing of the pump.
As the shaft turns, a liquid ring is established by the centrifugal force generated by the rotating impeller. This pressure holds the liquid ring against the inner wall of the pumping chamber. Since the impeller is located eccentric to the pumping chamber, the depth of entry of the blades into the liquid ring reduces and raises as the impeller rotates. This creates Liquid-Ring Vacuum Pump china increasing cell quantity on the inlet slot side, creating vacuum.
On the discharge slot side, the impeller cell volume decreases as the blades move further into the liquid band. This increases the pressure until discharge occurs through the discharge interface.
A continuing flow of new sealing liquid comes to the pump via the sealing-liquid inlet.
In the case of the two-stage liquid ring pump, the discharge from the 1st stage will not discharge to atmosphere. Instead, the 1st stage discharges through the manifold leading to the second stage as well as through a discharge interface positioned in the intermediate plate between the first- and second-stage impellers.