There are many different types of Shanyang fan, such as DC fan, AC fan, long-life fan, centrifugal fan and blower, and the number of models is no less than 10000. In other words, selecting a suitable fan needs to master certain professional knowledge. Today I'll introduce the selection method of bulk hot air fan.
Firstly, according to the two basic parameters of air volume and total pressure of the required fan, the model and machine number of the fan can be determined through the dimensional performance table of the fan. At this time, more than one product may meet the requirements; Then, combined with the purpose, process requirements and application occasions of the fan, select the type, model and structural material of the fan to meet the required working conditions, and strive to make the rated flow and rated pressure of the fan close to the flow and pressure required by the process as far as possible, so as to make the operating point of the fan close to the high-efficiency area of the fan characteristics. The specific principles are as follows:
The size and size of the cooling fan shall be selected according to the equipment structure design. After confirming the size, confirm other parameters. Generally, the fan speed with small size will be high.
The bearings of the cooling fan are divided into double ball bearings, hydraulic bearings and oil bearing. The service life and noise of the three bearings are from high to low.
Generally speaking, the lower the noise, the better. It is more sought after by users. However, the noise is directly related to the air volume and bearings. We should select the type in combination with the actual environment.
The larger the air volume of the cooling fan, the greater the wind power, the better the cooling performance of the fan, but the noise will also increase, and the service life of the fan will be affected to a certain extent.
Select the signal line of the cooling fan. The signal line is our little helper.
Rd alarm signal is an alarm signal that will be sent when the fan stops running, which can be handled and repaired in time.
FG speed measurement signal can detect the speed of the fan during real-time operation.
PWM speed regulation signal, the speed regulation signal can adjust its speed according to different climates in four seasons, save power consumption and reduce noise.
The temperature control signal can automatically adjust its speed according to the ambient air temperature.
Finally, it should be noted that the model of the selected fan should fully consider the comprehensive factors such as the equipment used by the fan, the on-site installation requirements and the environment for safe operation. Of course, if you still have some doubts about the fan selection, please call us and look forward to your generous call!