For the industrial marketplace, the most widely used a/c compressor models are rotary screw compressors. These models deliver unceasing compressed air to carry out precision tasks. They are extremely quiet and consistently efficient and effective. A good example of this type of air compressor is the Hitachi screw compressor.
Using Technology to Your Advantage
These types of air compressor are relatively new over the entire history of the compressor industry. They use advanced technology balanced with working as eco-friendly as possible by offering a low energy consumption. This is important because these compressors are designed to run 24 hours every day, seven days a week and for a number of years.
For the technicalities, the variety of types of screw compressors are classified on their stages, drive type and cooling method.
The most popular model seen in the market is a single stage and oil injected rotary screw compressor. These models insert oil direct into the compression chamber.
Other models of compressors are entirely oil free. These are chosen when any amount of oil found in the air would cause damage and contamination to either the process or the product. Nevertheless, the oil injection models are found far more often in rotary screw air compressors in Bethlehem, PA. The Hitachi screw compressor is an example of an oil flooded model.
How Does the Power Work?
The power derived from these compressors is from two counter rotating screws in the chamber. Air from outside passes through a filter to remove debris and any harmful particles. The filtered air enters through an inlet valve between the interlocking screws. When the rotors are turned, the air travels to the furthermost end in the compression chamber. The pressure of the air is increased as the space for the air is reduced. This action flows in one smooth motion which is very different from piston compressors which contain a surge, or pulsing, action.
The oil serves to clean, seal, lubricate, cool and protect the rotary screw air compressor. The air and oil produced is separated in a tank. This travels through a pressure valve and may need to be cooled, depending upon the model. Where this causes condensation, this is separated from the air. The Hitachi screw compressor produces a steady stream of compressed air at a high volume.
By understanding how oil and air is filtered and cooled, it is easier to gain the knowledge to understand how commercial rotary air screw compressors work efficiently. With this, you can organise their maintenance and keep a known supplier available for urgent delivery of replacement compressors, parts and accessories. Visit us website for more information.
