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Causes of Wear in Axial Flow Fans and Preventive Measures
2024-11-26
The wear of axial flow fans can cause vibration, shorten the lifespan of the fan, and in severe cases, prevent the fan from functioning normally. The wear of the fan blades is particularly serious, as it not only disrupts the flow characteristics within the fan but also easily leads to blade fractures and major accidents such as overspeed. Therefore, studying the wear mechanism of fans and taking corresponding anti-wear measures is extremely necessary.
1. Basic causes of wear in axial flow fans
1.1 Dust's impact on fan wear
A large amount of microscopic dust during the operation of the fan can cause damage to the fan's bearings, blades, and motor due to long-term accumulation. Because the particle size of dust is small and there are many types, many dust particles cannot be effectively removed, leading to damage in vulnerable areas of the fan. At the same time, some fan application units reduce the use of dust collectors to control costs and improve ventilation efficiency, which can cause severe damage from dust to the fan, increasing the risk of wear and failure.
1.2 Unreasonable operating conditions of the fan
Different positions and functional settings require different fans and adjustments to adapt. The gap between design and reality, as well as differences in function and needs, create issues in fan selection, which can easily lead to overloading and exacerbated wear of the fan.
1.3 Excessive fan operating speed
Excessive operating speed is another important cause of fan wear. According to data analysis on fan wear, the degree of wear is related to the fan's operating speed. Under high-temperature conditions, if the fan's operating speed doubles, the wear increases threefold.
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