Air compressors are pneumatic devices that convert power into potential energy, which is then stored. They are favoured because they can save on energy costs and can be very efficient in all matter of processes and applications. Rotary screw compressors are types of air compressors which then also make use of a rotary type positive displacement mechanism. The main reason for their use is as an alternative to piston compressors, because a large amount of compressed air is sometimes needed. In these cases (for example, when operating an industrial chiller, or power air tools), a rotary screw compressor might be the better option in many ways. They can’t be used for smaller applications as the rotors would not be suitable and there would be too much leakage to make it worthwhile, so rotary screw compressors only really make sense for large applications. When they are used, though, and they are properly specified, they can make an enormous difference to efficiencies.
If the application is large enough to warrant the use of a rotary screw compressor, there are many benefits which can result in greater efficiencies overall. For example, there is little surging in flow, something that might happen with piston compressors. There is also less vibration, despite larger sizes often being used, which means that there can be some improvements in general efficiencies. All in all, this means that for applications where rotary screw compressors can be specified, there are a number of key advantages.
How do Rotary Screw Compressors Work and How is this Different?
Rotary screw compressors make use of two rotors to compress the gas. There can be two different types, dry running and oil. Gas enters through a suction side as the screws rotate; it is forced through the compressor. Other kinds of air compressors work differently and employ different mechanisms, which might be better for other applications – these types include rotary vane compressors, industrial piston compressors, workshop piston compressors, and mobile compressors which usually run on diesel.
Other benefits of rotary screw compressors include quiet operation, and the option for oil lubrication.
The Most Energy Efficient Options: Selecting Rotary Screw Compressors for all Requirements
For large industrial applications where compressors are needed to work to full capacity 24 hours a day, 7 days a week, rotary screw compressors can be the ideal choice. However there are still decisions that need to be made to ensure they are suitable for their specific application. The exact pressure will need to be specified and can range from 3.5 to 15 bar, so that output and pressure can be tailored for different installations. Using a rotary screw compressor that is not best suited to its application will unbalance a lot of the benefits so it is important it is properly specified from the off. A compressor supply expert can help with this process, and should also be able to offer temporary solutions in the meantime ahead of installation. They can also install rotary screw compressors in situ, and help with servicing and maintenance in future.