Liquid-Ring Vacuum Pumps is a rotating positive-displacement pump.
They are typically used as a vacuum pump, but can also be used as a gas compressor. The function of a liquid-ring pump is similar to a rotary vane pump. The big difference being that the vanes are an integral part of the rotor and churn a rotating ring of liquid. This liquid formation engages the compression-chamber seal.
They are an inherently low-friction design, with the rotor being the only moving part. Sliding friction is limited to the shaft seals. Liquid-ring pumps are typically powered by an induction motor.
How does the Vacuum Pumps work?
The liquid-ring Vacuum pumps compress gas by rotating a vaned impeller located eccentrically within a cylindrical casing. Liquid (usually water) is fed into the pump and, by centrifugal acceleration, forms a moving cylindrical ring against the inside of the casing.
This liquid ring creates a series of seals in the space between the impeller vanes, which form compression chambers. The eccentricity between the impeller’s axis of rotation and the casing geometric axis results in a cyclic variation of the volume enclosed by the vanes and the ring.
In addition the Gas, often air, is drawn into the pump through an inlet port in the end of the casing. The gas is trapped in the compression chambers formed by the impeller vanes and the liquid ring.
Also, the reduction in volume caused by the impeller rotation compresses the gas. This then reports to the discharge port in the end of the casing.
Furthermore, compressed gas on discharge of pump contains certain amount of working liquid which is usually removed in vapor–liquid separator.
In conclusion, if this Vacuum Pumps does not meet your application we can provide a different type of vacuum related pump. If it is not a vacuum pump you are looking for, pls select the following below
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