What are the main components of a centrifugal compressor?

Centrifugal compressors have many types and specifications, but according to their basic composition, centrifugal compressors mainly consist of two parts: stator and rotor, and each part consists of basic parts.

(1) Fixed parts

The stator consists of cylinders, parts, air seals and bearings. The cylinder is integrated into the bottom of the machine via cat spikes to ensure stability and operation of the unit. This part attaches to the cylinder and acts as a distributor, dent and returner, forming a gas channel for solid particles. According to the location of the parts, it is divided into entry part, middle part, part part and exit part etc. A gas seal is installed on the end plate of a shaft or cylinder to prevent gas leakage into or out of the cylinder. . Bearings are installed on both sides of the cylinder and play a supporting role. Stator components must meet the following requirements.

He. It must have sufficient strength to prevent deformation during long-term use.

B. Must have sufficient strength to withstand moderate atmospheric pressure.

c. Must have reliable performance to prevent gas media leakage.

(2) Rotor part

The rotor is the working part of the compressor. It works on the gas by rotating it, so that the gas obtains pressure energy and velocity energy. The rotor mainly consists of shaft, impeller, balance plate, pressure plate and spacer sleeve and other parts. In addition to sufficient strength and stiffness, rotors must undergo dynamic balance tests during production to avoid negative consequences due to imbalance. In addition, measures must be taken to prevent loosening of important parts of the axle, such as the impeller and balance plate, to avoid displacement during operation that could cause friction, vibration and other defects.

In summary, the centrifugal compressor is mainly composed of the stator part and the rotor part.