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IP Protection Level of Cooling Fan
Jun 01 , 2021
Cooling fans are widely used, and their application environments are different. In harsh environments, such as outdoors, damp and dusty places, cooling fans are generally equipped with waterproof grade, that is, IPXX. IP is the abbreviation of Ingress Protection, and IP grade is the protection grade against foreign body intrusion of electrical equipment shell, which comes from IEC 60529, the stand...
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What are the reasons for slowing down the speed of DC fans?
Jun 17 , 2021
With the development of Internet information age, Industrial DC fans, Cooling fans, Cross flow fans and AC fans have been applied in many industries, such as household appliances, industrial equipment, electronic equipment, medical aviation and so on. Have you ever encountered such a situation? When the fan is used, the speed of the fan can meet the cooling requirements of the equipment, but when ...
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Structure of Cross Flow Fan
Jun 22 , 2021
Generally, a cross flow fan has a multi-blade, long cylindrical impeller with forward multi-wing blades. At present, our cross flow fans are mainly divided into two types: AC cross flow fans and DC cross flow fans. Cross flow cooling fan has a complicated internal structure. Although its impeller circumference is symmetrical, its airflow activity is asymmetrical, and its relative velocity field an...
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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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Cooling Fan - Working Principle of AC & DC Fan
Jul 22 , 2021
Working principle of AC fan: The difference between AC axial fan and DC axial fan is that the former power supply is AC, the power supply voltage is negatively altered, the fan power supply voltage is fixed, and the circuit control must be rely on circuit control, so that the two sets of coils will work to produce different magnetic fields. AC cooling fan is fixed due to the power supply frequency...
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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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How to Determine the Quality of the Cooling Fan
Aug 11 , 2021
Cooling Fans mainly include axial flow fans and centrifugal fans, and axial fans are divided into DC axial fans and AC axial fans. With the increasing use of cooling fans, more and more fans appear on the market. However, the quality of these fans varies from good to bad. If you want to buy a good fan, you must know how to distinguish the fake and inferior of the fan. So how to judge the fake and ...
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