Liquid Ring Pumps: Cleaner and Safer Pumping
Posted in Uncategorised, on June 23, 2021 By Admin
Among the various types of pumps available, the liquid ring pump is one of the most commonly used throughout different industries. This is because of its highly efficient performance and its ability to work in various applications with close to zero risks of contamination.
Operating principles of liquid ring pumps:
Liquid ring pumps work through the principle of positive displacement. They use water or any other compatible medium as a sealant, hence the term liquid ring. The design of a liquid ring pump enables it to operate without the need for its parts to come into contact with one another. As such, this makes it a great option for the safer and more reliable handling of hazardous and dirty gas streams.
Liquid ring pumps are composed of impellers that rotate to create small chambers that trap the gas medium. The liquid medium inside the pump forms a ring inside the chamber to seal the gas. The gas is compressed as the rotor’s axis moves eccentrically inside the chamber. The heat generated during the compression process dissipates into the seal while the exhaust gas is separated from the processed gas.
What makes the liquid ring pump unique is its ability to accept carryover wherein slugs, moisture, chemicals, soft solids, and other media can still be processed without causing any harm to the pump. These contaminants will be washed out. Moreover, the pump operates quietly and does not easily suffer from overheating. This is because of the sealing water used during the pumping operation. Lastly, this type of pump can operate consistently at any vacuum level, making it highly versatile as well.
These kinds of pumps have robust constructions and only one moving part, the rotor. As such, the pump is not prone to wear and tear, making its maintenance costs more manageable. Additionally, the pump does not need frequent filter, oil, or condenser changes while still providing cleaner and contaminant-free operations.
At McRae Engineering, we supply liquid ring pumps from top manufacturers such as Elmo Rietschle. Check out our blog about our Elmo Rietschle liquid ring pump to learn more about this product.