What are the compressor stages?

What are the compressor stages?

A compressor stage consists of one impeller, stationary intake and discharge tubes known as inlet guide vanes and diffusers, and seals known as the eye labyrinth seal and the shaft labyrinth seal. The function of the compressor stage is to compress the fluid flowing through it.

There are two types of compressor stages: single-stage and multi-stage. Single-stage compressors consist of a single impeller that compresses the incoming air/gas flow into the center of the casing and then out through the exhaust tube. This type of compressor is used when cost is not a concern. Multi-stage compressors consist of several units arranged in a series loop. Each unit performs its specific task (compressing, cooling, etc.) before passing the compressed air on to the next unit in the series loop. These types of compressors are more expensive than single-stage models but can handle much higher pressures. They also have many additional parts including valves, drive belts, shafts, casings, etc.

Compressors are used in many applications such as air conditioners, refrigerators, car engines, vacuum cleaners, and jet engines. Air compressors are machines that use mechanical energy from an engine or motor to compress air.

What is a stage in an axial flow compressor?

Axial Flow Compressor Because the amount of pressure raised by each stage is minimal, the compressor is a multistage machine; a stage consists of a row of revolving blades followed by a row of stator vanes. The stator vanes turn with the rotor and direct the air stream coming from the preceding stage into the next-to-last stage.

The stages are defined by their locations along the length of the compressor. On a two-stage compressor, there would be a first set of blades followed by another set. These would be the front-most stage and rear-most stage. A three-stage compressor would have three such groups or stages. Each subsequent stage has more severe requirements than the one before it. For example, the blades on the third stage must rotate at a speed higher than that of the second stage, but lower than that of the first stage. This difference in blade speed is caused by the fact that the output pressure of the compressor falls as it moves away from the engine. Therefore, the third stage requires blades that can operate at a slower rate than those used on the first stage.

The location where each group of blades meets the following group of stator vanes is called a interstage area. The purpose of the interstage areas is to change the direction of the airflow without causing excessive loss of pressure.

How does a multi-stage reciprocating compressor work?

Multi-stage compressors are made up of a succession of cylinders, each of which has a different diameter. Between compression stages, the air is cooled by passing through a heat exchanger. Air is driven into an extra chamber in a two-stage compressor, where it is compressed to the desired level. The pressure inside this second stage increases as the volume decreases, so there must be some way to release this pressure. A valve opens at the end of the second stage, allowing the increased pressure within the second stage to escape.

The third stage uses the same method of release as the second stage but works on the remaining volume of gas. This process continues with each subsequent stage working on its assigned volume of gas. These types of compressors are used because they can operate at high efficiency levels over a wide range of conditions.

A single-stage compressor has only one cylinder in which to compress the air. It functions much like a vacuum pump - when the piston goes down, it removes all the air from the cylinder, and then moves back up again. Single-stage compressors are not as efficient as multi-stages at compressing air, but they do have the advantage of being cheaper to make. They are also used when maximum efficiency is not necessary - for example, if the air will be moved slowly through a system, it doesn't matter how many times it is squeezed in between other tasks.

About Article Author

David Mcdonald

David Mcdonald is a skilled mechanic who knows all there is to know about cars. He has been working on cars his entire life and enjoys the challenge of fixing them. David also loves playing basketball and is an all-around great guy.


EsWick.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.

Related posts