The main cooling fan applications is the difference between centrifugal fans and axial fans

　　Axial fan is characterized by fluid flow through the axial direction of the blade. For example, fans and family in the exhaust fan. The centrifugal fan is the fluid from the axial suction fluid from the use of centrifugal force will throw to the circumferential direction, such as fans, range hoods

　　Axial fan: flow rate, pressure head.

　　Centrifugal fans: big head, small flow.

　　Axial flow direction perpendicular to the direction of rotation of the fan blade centrifugal fan airflow direction tangential to the rotation direction of the blade.

　　What is the most important form of fan selection is to consider the flow and system pressure loss

　　Compared with centrifugal fan axial fans, the biggest drawback is bulky, because the two different structures, in the case of the same amount of wind, the same wind pressure, centrifugal fan power consumption is much larger than the axial fans, but the noise will be relatively small, so the axial fan is used in fire ventilation, the fans usually use the multi-use centrifugal fan. In the upscale hotel building, many require priority centrifugal fan

　　Axial is in the same direction with the axis of the fan airflow. Centrifugation, thrown by centrifugal force to flow out.

　　The wind direction and the axis is parallel to the axial fan called, (such as firefighting exhaust fan) and vice versa is a centrifugal fan (such as fan coil fan).

　　The fundamental difference between axial fans and centrifugal fan cabinet on the mechanical structure of the fan:

　　Axial fan blade diameter is limited to the diameter of the shell,

　　The centrifugal fan, there is no limitation in this regard, you can use the blade forward or backward blades, wind pressure requirements for wider adaptation. And do silencer cabinet handle on noise indicators have obvious advantages.

　　Due to the general use of the lower number of revolutions of the motor, motor power, with a lot more power. If ventilation systems usually used, as far as possible cabinet centrifugal fan, fire smoke unusual system, using high temperature axial fan is more economical!

　　Centrifugal fan axial fans than the combined amount of wind and a large selection pressure on the advantage (mainly referring to the fan efficiency and noise performance)! Cooling fan

　　Centrifugal fans and axial fans except that:

　　1, changing the flow of centrifugal fan duct inside the medium, but does not change the flow of axial fan duct within the medium;

　　2, the former air volume and pressure are large, which air volume and pressure are very low;

　　3, the former is more complex installation, which is relatively simple to install;Cooling fan

　　4, the former motor and fan are generally connected by a shaft, which is usually in the fan motor;

　　5, the former often installed in the air conditioning unit inlet and outlet of the boiler drums, Fan, etc., which were often installed in duct or duct outlet front end.