性做爰A片免费播放,白石茉莉奈种子,给外女开小嫩苞19p,撕开奶罩揉吮奶头

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

2020-09-02
Viewed:3633
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

主站蜘蛛池模板: 内丘县| 贵南县| 江永县| 金寨县| 大宁县| 仪陇县| 恩施市| 湟源县| 新龙县| 六安市| 克东县| 荃湾区| 府谷县| 榆中县| 旺苍县| 达尔| 高阳县| 三门峡市| 汉中市| 友谊县| 望城县| 宾川县| 河南省| 富川| 西宁市| 宝山区| 宣化县| 义马市| 梁河县| 封开县| 会同县| 谢通门县| 清苑县| 安岳县| 玛沁县| 龙岩市| 台前县| 田林县| 邯郸市| 辛集市| 汝阳县|