Across various industries, vacuum pumps are used for endless applications, from removing moisture from products to packaging all sorts of consumer goods. From industrial plants to medical laboratories, there is no doubt about the capabilities of this machine in fulfilling demands. One particular type of this machine is worth highlighting in this article - the liquid ring pump.
The Design of Liquid Ring Pump
Liquid ring pumps come in single and multistage variations that work through a positive-displacement pumping principle. It works similarly to its rotary vane counterpart. In general, its overall design is low friction and the only component that moves is the rotor. In many cases, the pump is powered by induction motors. In some circumstances, the liquid ring is removed from the gas via external elements in which it is cooled prior to sending it back to the pump’s casing.
With its inherent design, the liquid ring pump can handle heavy and rugged industrial applications involving wet environments. It works around a rotating impeller that is free of fiction. The ambient air is being sucked into the pump which will then be compressed with the liquid and be discharged. There are plenty of chambers that are created by the impeller, hence the gas is expelled continuously during each rotation.
The Application of Liquid Ring Pump
The liquid ring pump is used across a range of industrial applications. From producing paper to refining petroleum, the pump is found to be so useful. It is also very commonly applied in steam-turbine generators to suck gas. Likewise, it is utilized to remove water from pulp slurries and press felts to produce all kinds of paper. In addition, the pump is also useful in drawing groundwater from deep wells for soil remediation purposes.
Ultimately, liquid ring pumps have long been considered as the most ideal pumping technology that can process extreme vapour loads. This includes the processes involving evaporation, distillation, and similar tasks where both dry and wet gases have to be dealt with.
A liquid ring vacuum will accept any liquid with the right vapor pressure qualities. In most applications, water is used as the sealant, with oil being a distant second. Therefore, liquid ring vacuums that are oil-sealed generally need to be cooled with air.
The liquid ring pump has long been established as the most ideal pump for handling extreme vapor loads. In processes that involve distillation, evaporation and other condensable tasks, liquid ring vacuums are the best technology for handling wet as well as dry gases that carry liquid. McRae Engineering sells liquid ring pumps in both single and dual-stage designs, which makes the technology applicable for a whole host of industrial demands.
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