The Various Types of Air Compressors
Air compressors are essential as their services are applied in many industries such as agriculture, construction, chemical manufacturing and the automation and assembly industries. The primary task of an air compressor is to convert the power from an external source mainly diesel engines and electric motors to stored energy which is released in the form of pressured air. Pressurized air is used in the industries to power machinery and equipment. It is important that one pays attention when they are selecting a compressor, as any mistake will lead to financial losses to the company. Different types of compressors are available which vary regarding the level of pressure of the air they are delivering, their operation methods and also the capacity of air that a given compressor can deliver. As much as one pays attention to the ability of the compressor to deliver air at high pressure and also the capacity of the air that they deliver, one also needs to identify the cost of purchasing a particular air compressor and also the durability of the equipment.
Three main types of compressors, based on the operation methods, are available in the market. Reciprocating compressors are the first kind of air compressors where they function as positive displacement compressors. They function by reducing the volume of the air thus increasing the pressure as they have pumps driven using pistons which are attached to the cylinders that compress and displace the air. The reciprocating compressors are further divided into direct drive compressors and the belt drive compressors where the belt-drive compressors are preferred due to their high output and durability. Due to their portability and their effectiveness the reciprocating compressors are recommendable for the building traders.
The second kind of air compressors, which also function as positive displacement compressors, are the rotary screw air compressors. In their operation, the rotary screw compressors are smoother in comparison with the reciprocating compressors, as they use helical screws and not pistons and thus have less surges and vibration. They are also durable and also easy to maintain while their capacity is also larger than that of the reciprocating compressors. The rotary screw compressors also allow one to control the airflow as they come with variable speeds and are widely used in hospitals, construction sites and factories.
One can also purchase the centrifugal compressors which have a rotating disc which provides the momentum to move and also pressurize air. One can also control the pressure of the air as they have inlet guide vanes. Some of the applications of the centrifugal compressors include in automotive, air conditioners and refrigerators.