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Cooling Fan - Selection of Fan Bearing System
Jul 02 , 2020
The cooling fans reliability of their bearings is very important, and the type of bearing used by the fan is also very important. So how to choose the cooling fan bearing system? The best fan bearing system for cooling fans is double ball bearing. The advantages and disadvantages of sleeve bearing, ball bearing in fan bearing system as follows: Advantages of using sleeve bearing 1. Resistant to im...
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Introduction of some related knowledge about cooling fan noise
Jun 11 , 2021
How to measure the noise of cooling fan? What are the main factors related to the noise generated by cooling fans? How should we reduce the noise of cooling fans? 1、How to measure the noise of cooling fan? Noise is the sound level generated by the cooling fan during operation, and its unit is decibel (dB). Quiet cooling fan, when measuring the noise of the cooling fan, it needs to be carried out i...
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Material and Structure of DC Fan
Jun 28 , 2021
DC axial fan is made of PBT material. When it is working normally, the service life can be as high as 50,000 hours. The internal structure of the DC has a transformer and a main control board, which will not be affected by voltage fluctuations, so it is used Longer life. High speed axial fan, its rotor contains DC cooling fan blades, which are the source of air activity, the fan axis, and are used...
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A Brief Description of Axial Fans
Jul 07 , 2021
Axial fans date back to the horizontally configured windmills of Europe in the Middle Ages. The first electrically powered fans, introduced in the 1880s, were axial fans. Axial flow fans are named for the direction of the airflow they create. When an axial fan works, the blades push the air to flow in the same direction as the axis, so it is called the axial fan. An axial fan, as the name ind...
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Blower - The Working Principle of Centrifugal Fan
Jul 15 , 2021
Centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Centrifugal exhaust fans can be widely used for cooling and ventilation in air conditioning equipment, household appliances and medical equipment. The working principle of a centrifugal blower fan is basically the same as that of a turbo compressor, except t...
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What is the main reason for the imbalance of the impeller
Jul 27 , 2021
During the use of the impeller of AC & DC cooling fans, the causes of imbalance can be briefly divided into two types: wear of the impeller and fouling of the impeller. These two situations are related to the dust removal device connected in front of the induced draft fan. The dry dust removal device causes the impeller imbalance mainly due to wear; while the wet dust removal device affects th...
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Cooling Fan - What are the relevant parameters
Aug 25 , 2021
Airflow The airflow of cooling fan refers to the total airflow of air discharged or absorbed by the cooling fan per minute. If calculated in cubic meters, it's the CMM. The airflow unit often used by cooling fans is CFM (about 0.028 m3 / min). Large air volume fan, airflow is the most important index to measure the cooling capacity of cooling fans. Obviously, the larger the airflow, the highe...
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Why the blades of an axial fan are odd and not even？
Sep 08 , 2021
First of all, many people find that the structure of the cooling axial fan blades is composed of odd numbers such as 3, 5, 7, 9 and 11. However, many consumers are not very familiar with it, and are curious, whether this is just a design coincidence or another mystery Where? As we all know, the actual heat dissipation effect of a cooling fan largely depends on the design of the blade pitch and the...
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