Comparison and analysis of two types of air compressors

Comparison and analysis of two types of air compressors

In air-cooled air compressors, the cooling fans are mainly divided into two types: axial fans and centrifugal fans. The following mainly summarizes, analyzes and compares two types of axial fans and centrifugal fans.

　　 The fundamental difference between axial fan and centrifugal fan is the mechanical structure of the fan:

　　 1. The centrifugal fan changes the flow direction of the medium in the duct, while the axial flow fan does not change the flow direction of the medium in the duct;

　　 2. The air volume and pressure of the axial flow fan are very low, and the air volume and pressure of the centrifugal fan are very large;

　　 3. The installation of axial fans is more complicated, and the installation of centrifugal fans is simple;

　　 4. The motor and the fan of the axial flow fan are generally connected by a shaft, and the motor of the centrifugal fan is generally inside the fan;

　　5. Axial fans are often installed at the inlet and outlet of air conditioning units, boiler drums, induced draft fans, etc., while centrifugal fans are often installed in the middle of the duct or at the front of the duct outlet. Compared with axial fans, centrifugal fans have the following advantages:

　　 1. Maintenance is very convenient, some models can be equipped with a cleaning door, and there is no need to disassemble the machine during maintenance, saving time;

　　2. Good ventilation effect, especially suitable for pipe exhaust or air supply, the heat dissipation effect is more significant and there is no blind spot for heat dissipation;

　　3. Centrifugal fans are usually used in pipelines to transport air, and can be used in places where there is no corrosion, flammable and explosive gas;

　　4. The impeller of the centrifugal fan is reasonably designed to be backward, there is no friction during operation, the noise is very low, and it is not easy to get dust, and the maintenance is very convenient;

　　5. The surface is sprayed, which has strong oxidation resistance and is not easy to be rusted. The casing and impeller are made of high-quality steel plates that make the centrifugal fan very strong and durable.