国产无码av网站|精品人妻一区二区免费视频|亚洲一区二区高清无码在线观看|www一级黄色电影|伊人五月天堂久久艹成人在线|黄色一级强奸电影|日本A片在线看一级无码片|国产精品性爱国内黄色A片|黄色AV一级电影|欧美综合国产porn在线

What are the advantages and disadvantages of DC fan and AC fan?

2020-09-02
Viewed：3834
return

  Axial flow fan, widely used, is the air flow in the same direction with the axis of the fan blade, such as electric fan. The fan of external unit of air conditioner is axial flow fan. It is called "axial flow" because the gas flows parallel to the fan axis. Axial flow fan is usually used in the situation of high flow demand and low pressure requirement. Axial flow fan fixed position and make the air move. Axial flow fan is mainly composed of fan impeller and casing, with simple structure but high data requirements.

  fans can be divided into axial flow, centrifugal flow and mixed flow according to the air outlet direction, that is, straight in and straight out, straight in and out at 90 degrees, and straight in and out at 45 degrees.

  DC fan is a kind of fan which makes DC motor rotate to drive the fan impeller to rotate by inputting DC electric energy, so as to realize the conversion process from DC electric energy to mechanical energy. The characteristic of DC fan is that it is equipped with DC motor.

Search