Air compressors have extensive use in different areas; starting from the small home workshops to the multidimensional industries. They are used to serve different needs under different situations. In order to make them able to meet with all these extensively varied needs, different types of air compressors have been designed and manufactured. In this article we will discuss some of the most common forms of air compressors and their applications.
Positive displacement and Roto-dynamic compressors
Electric air compressors are categorized in many ways. The categorization based on the operational principle is most common. According to their principle of operation compressors can be straightaway divided into two types, the Positive Displacement Compressors and the Roto-Dynamic Compressors. The positive displacement compressors reduce the volume of air and thus increase the pressure. On the other hand, the Roto-dynamic compressors include rotating mechanisms that adds momentum to the particles of gas that is later converted to pressure.
Types and application of reciprocating compressors
The two primary types of positive displacement compressors are Reciprocating Compressors and Rotary Compressors. Reciprocating electric air compressors mostly work in a similar way that of internal combustion engines but in a reverse process. These compressors are used across industries, starting from chemical plants and oil refineries to gas pipelines, refrigeration plants and polyethylene tetra-phthalate industry. Reciprocating compressors also come in a number of varieties; including single acting compressor, double acting compressor, In-line compressor, Tandem Piston Compressor and many more.
Types and application of Rotary compressors
The primary types of Rotary compressors include Screw compressors and Vane compressors along with some others. These compressors include two rotors and as the cooling take part inside the compressor hence it is saved from experiencing extremely high temperature; ensuring a better service. The oil-free variety of Rotary screw air compressors are used in medical research and manufacturing of semiconductors where presence of oil is not permitted.
Roto-dynamic compressors and their applications
The Roto-Dynamic air compressors mainly come in two types. The Centrifugal compressors and the Axial flow compressors. Centrifugal compressors create high discharge pressure by the way of converting the angular momentum of the rotating impeller. These compressors have a continuous flow and are mostly used in heavy industrial purposes. Axial flow air compressors are extensively powerful and they are used in various purposes starting from industrial, aerospace related usage and research.
Other schemes of classification
The above classification highlights on the categorization according to the principle of operation of the compressor; apart from that compressors are also categorized according to the number of stages involved, method and medium of cooling used, types of drive, method of lubrication as well as according to the service pressure, low , medium or high offered. If you are looking for durable air compressors, go right here for more information.