A liquid ring vacuum pump is simple to operate and can be used in a number of applications across various industries. A liquid band pump works with a sealant needed in its procedure. This liquid could be water, essential oil or any other solvent which is rotated by an impeller within the casing of the pump.
As the shaft turns, a liquid band is established by the centrifugal force generated by the rotating impeller. This push holds the liquid band against the inner wall of the pumping chamber. Because the impeller is located eccentric to the pumping chamber, the depth of entry of the blades into the liquid ring decreases and raises as the impeller rotates. This creates increasing cell volume on the inlet slot side, creating vacuum.
On the discharge interface side, the impeller cell volume decreases as the blades move further into the liquid ring. This escalates the pressure until discharge takes place through the discharge slot.
A continuous flow of refreshing sealing liquid is supplied to the pump via the sealing-liquid inlet.
Regarding the two-stage liquid band pump, the discharge from the 1st stage does not discharge to atmosphere. Liquid-Ring Vacuum Pump china Rather, the 1st stage discharges through the manifold leading to the second stage along with through a discharge interface situated in the intermediate plate between the first- and second-stage impellers.