Among all the available industrial vacuum pumps, the liquid ring vacuum pump is considered a versatile and most popular type of vacuum pump for industrial applications.
Liquid ring vacuum pumps are devices that utilize suction to move a liquid in or out of an object. The pump requires a sealant in the form of oil, water, or any other fluid, for its working. The pumps are easy to operate, and their repair and maintenance are much easier compared to other pumps.
Most of the pumps are used for pumping and vacuum generation, whereas liquid ring vacuum pumps can also be used as gas compressors. Due to its design, the liquid ring vacuum pump can compress gas using the impeller's rotating mechanism, making it a handy device useful for many applications. Hence these pumps can be used for either compression jobs or vacuum tasks.
Thus, due to its versatility, the liquid ring vacuum pump can be used for various applications at different stages, helping the users with the advantage of several functionalities using a single device.
The following are a few common advantages of liquid ring vacuum pumps that have contributed to their immense popularity and rising demand across various industries. They are as follows:
Benefits of Liquid Ring Vacuum Pump
- Robust design - These pumps are robust and highly stable with uniform results generating reliable vacuum for various chemical processes.
- Isothermal – The vacuum pump operates nearly isothermally at relatively low temperatures even though the sealing liquid in the compression chamber continuously dissipates the heat and reduces the risk of unwanted explosions.
- No lubrication – As there is no metal-to-metal direct contact in the liquid ring vacuum pump, it does not require regular lubrication.
- Suitable for a variety of applications – Liquid ring pumps can serve as vacuum pumps as well as compressors, making them widely accepted across the different types of industries. The liquid ring vacuum pumps use an impeller to compress the gas that makes it idle for various processes such as moisture extraction, vacuum distillation, condensation, air or ash handling, separating water from paper pulp, evaporation, and mineral beneficiation.
- Low maintenance – Compared to other mechanical pumps, the liquid ring vacuum pumps need minimal maintenance because they are driven by liquid ring technology and have only one rotating impeller.
- Suitable for various types of fluids and explosive gases - These liquid pumps are made up of durable materials to withstand volatile gases and vapors without affecting their performance. As the gases are compressed at the same temperature in the cavity, the pump is capable of pumping explosive gases.
- Compact design – The pumps are available in various compact designs taking into consideration the space constraints. Many of the pumps are made of durable material such as cast iron and SS.
After understanding the benefits of the liquid ring vacuum pump, let us look at its various applications for industrial purposes.
Applications
Some of the industries where Liquid Ring vacuum pump is ideally a good option are as below:
- Pharmaceutical and Chemical industry: In this industry, Liquid ring vacuum pumps are used as compressors and vacuum pumps. It is used for various processes such as Filling, Filtration, Cooling, Crystallizing, Distillation, Deaeration of caustic solutions, Solvent Recovery, and many more.
- Automobile Industry: In this industry, it is used for Engine testing, Carburettor testing, vacuum filling of power steering and brake fluid.
- Petroleum Industry: Vacuum priming, vacuum cleaning and filling of barrels, filtration, vapor recovery, etc.
- Pulp and Paper Industry: Paper coating and dehydration of paper webs
- Food Industry: Bottling industry, sausage production, sweet production, degasification of mineral water, powder conveying, etc.
- Mining industry: Vacuum filtration, gas boosting, drawing off of pit gas
- Textile industry: Hydro extractor
- Plastic Industry: Extrusion degasification, vacuum calibration, drawing off and compressing vinyl chloride gas
- Energy production: Duration, Fly ash conveying, and evacuation of steam turbine condensers.
Apart from the above industries, Liquid ring vacuum pumps are also used for other industrial applications, such as agricultural, power plants, environmental, aeronautical, mineral processing, etc.
Hence, from the above article, you can now understand that the liquid ring vacuum pumps are more efficient than any other pumps to handle air or liquid application in the industries. The low cost and maintenance characteristics of liquid ring vacuum pumps make them an ideal option among the vacuum pumps where operating cycles are lengthy and continuous, where reliability is a must, and unscheduled maintenance issues can be expensive.
