The Various Types of Air Compressors
Air compressors are necessary for different industries as they are used in automation and assembly, agriculture and construction and also in chemical manufacturing. The air compressors function by converting power from an external source, primary an electric motor and diesel engines where they convert the electric power to the stored energy released in the form of pressurized air. Pressurized air is used in the industries to power machinery and equipment. When in the market seeking for an air compressor there is the need to pay attention to select the best compressor as a mistake will lead to financial loss on the part of 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. When one is purchasing an air compressor, they also need to determine the cost of a given air compressor, the durability and also the ability of the compressor to balance the capacity of the air they hold and the pressure levels of the air that they release.
Three main types of compressors, based on the operation methods, are available in the market. The first kind of compressor is the reciprocating compressors which are categorized as positive displacement compressors. The reciprocating compressors have pumps which also have pistons and cylinders that are attached which serves to press the air reducing the volume of the air and thus resulting in the high pressures of the air being displaced from the compressor. There are two kinds of the reciprocating compressors as one can choose between the direct drive compressors and the belt drive compressors but most buyers prefer purchasing the belt drive compressors as they are durable and also have high output. The reciprocating compressors are portable and thus suits traders in construction while they are also efficient.
The second type of compressors is the rotary screw compressors which also function by positive displacement process. The rotary screw compressors are reliant on helical screws rather than the pistons and thus have less surges and vibration in comparison to the reciprocating compressors. In comparison with the reciprocating compressors, the rotary screw compressors are easier to maintain, durable and also have a larger air capacity. The rotary screw compressors are used in hospitals, construction sites and factories as they also have variable speeds allowing one to control the airflow.
The third kind if the air compressors that one can buy is the centrifugal compressors which depend on the momentum from a rotating disk to transfer and pressurize air. One can also control the pressure of the air as they have inlet guide vanes. They are used in refrigerators, automotive and air conditioners.