What are the characteristics of external rotor axial flow fan?

Traditional motor, the stator is outside, the rotor rotates to generate electricity, the outer rotor axial flow fan is of reverse structure, the stator is in the middle of the motor, the rotor is outside the motor, the outer rotor axial flow fan adopts the advanced structure and reasonable aerodynamic design of the outer rotor motor directly driving the impeller, It has the characteristics of high efficiency, low noise, light weight, compact structure, convenient installation and maintenance, etc. The rotor name and blades rotate outside the stator, compact structure, saving space, the design is exquisite, the motor is installed in the middle of the impeller, which has a great cooling effect on the motor itself. The 100 variable speed outer rotor motor has a small starting current, the motor protection level can reach IP54, and the ambient temperature is between -30 and 6. Uses: air Heater, heat pump, condenser, cooling device, evaporator, electronic equipment, air supply or heat dissipation, etc, it has the characteristics of compact structure, convenient installation, reliable operation, low noise and energy saving.

External rotor axial fans are widely used in hotels, restaurants, industrial and mining enterprises, office buildings and other building facilities, as refrigerators, cold storage or auxiliary equipment for ventilation and heat dissipation (such as supermarket cold storage, ice maker, air cooler, chiller, Condensing units and other refrigeration equipment or facilities are used in conjunction with dehumidifiers, evaporators, side wall fans, fire fans, air conditioning fans and other equipment.

Causes and Preventive Measures of Wear of Outer Rotor Axial Flow Fan

The wear of the outer rotor axial flow fan will cause the vibration of the fan, shorten the service life of the fan, and cause the fan to fail to work normally in severe cases, especially the blade wear of the wind turbine is very serious. It not only destroys the flow characteristics of the wind turbine, but also It is easy to cause major accidents, such as blade fracture and rapid operation. Therefore, it is necessary to study the wear mechanism of the fan and take corresponding anti-wear measures.

The Root Cause of External Rotor Axial Fan Wear

1. There is dust on the fan

A large amount of dust in the operation of the fan will damage the fan bearings, blades and motors due to long-term accumulation. Due to the small particle size and many types of dust, a lot of dust cannot be effectively cleaned, and it is easy to damage the vulnerable parts of the fan. At the same time, some fan application units reduce The use of fan dust collectors to control costs and improve the ventilation effect of the fan, which will cause dust to seriously damage the fan and increase the risk of fan wear and failure.

2. Abnormal operation condition of fan

Different positions, different function settings, need different fans, different state adjustments to adapt, the gap between design and practice, the difference between functions and requirements, form the problem of fan selection, which can easily lead to fan overload and increase fan wear,

3. The fan runs too fast,

Running too fast is another important reason for fan wear. According to the data analysis of fan wear, the degree of wear is related to the running speed of the fan. Under high temperature conditions, the running speed of the fan doubles and the wear of the fan triples,