With the development of modern industry, fan as an important mechanical equipment, is widely used in all walks of life. In the classification of fans, axial flow fans andExternal rotor fanare two common types. So what are the characteristics of these two fans? Here is a detailed introduction.

1. axial flow fan

The axial flow fan is a kind of fan that conveys the gas along the axis direction. Its main feature is that the airflow direction is parallel to the axis, and the airflow speed is low. Because of its simple structure and low failure rate, it is widely used in industrial production. The main features of axial fan are as follows:

1. Small size and light weight: The structure of the axial flow fan is relatively simple, small in size, light in weight, and relatively easy to install and maintain.

2. Wide range of application: Axial flow fan is suitable for all kinds of gas transportation, especially for occasions with large air flow and low air pressure.

3. Low noise: The airflow speed of the axial flow fan is low and the noise is relatively low.

Low energy consumption: The energy consumption of axial flow fan is relatively low, so it can save energy and improve production efficiency in industrial production.

Short conveying distance: Due to the low airflow speed, the airflow conveying distance of the axial flow fan is relatively short.

6. Low price: The structure of the axial flow fan is simple, the production cost is relatively low, and the price is relatively low.

2.External rotor fan

　　External rotor fanIt is a fan that conveys gas in a centrifugal direction. Its main feature is that the airflow direction is perpendicular to the axis and the airflow speed is higher.External rotor fanThe main features are as follows:

1. Strong conveying capacity: the airflow speed of the outer rotor fan is high, and the conveying capacity is relatively strong, which is suitable for occasions with large airflow and high air pressure.

2. High pressure: The pressure of the outer rotor fan is relatively high, which can meet some high-pressure industrial production needs.

3. Large volume and heavy weight:External rotor fanThe structure is relatively complex, large in volume, heavy in weight, and relatively difficult to install and maintain.

4. High noise: The airflow speed of the outer rotor fan is high, and the noise is relatively high.

5. Long conveying distance: Due to the high airflow speed, the airflow conveying distance of the outer rotor fan is relatively long.

6. Higher price: The structure of the outer rotor fan is complex, the production cost is relatively high, and the price is relatively high.

In short, the axial flow fan and the outer rotor fan each have their own characteristics, should be based on the specific use of occasions and needs to choose the right fan.