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For the users of centrifugal fans, the problem of wear is always everywhere, so the wear of the centrifugal fan during use can be divided into many situations, mainly referring to the wear between the bearings, and then the wear of the impeller and the whole machine. If the wear phenomenon is serious, it will directly lead to the failure of the use effect of the fan. Due to the high cost of wear, we mainly start from the wear problem of the impeller in this chapter, and find several methods and techniques for users to deal with the wear problem of the impeller, so that Better use of fans.
Improving the process route is a relatively typical method. Try to place the centrifugal fan after the dust collector, such as: the fan is placed after the humidification tower or pipeline humidification, and the drying heat source exhaust fan is placed after the dust collector. Wear and tear, paste or weld ceramics on the surface, compound wear-resistant engineering ceramics on the surface of fan blades with high-strength and high-temperature resistant adhesives or special welding processes, this technology should focus on solving the problem of anti-shedding. Moreover, repeated welding will cause cracks on the blade surface, which is prone to accidents. Carburizing can be carried out on the surface of the blade. Process decision. Thermal spraying, using plasma spraying method or oxyacetylene flame, spraying ceramics or tungsten carbide or spray welding nickel base + tungsten carbide alloy on the worn surface of the blade.
The method of reducing the wear of the impeller also requires the user to start with anti-corrosion. In many cases, the corrosion of the fan will aggravate the wear of the fan. Therefore, how to reduce the corrosion of the fan during use is also a subject that the user needs to study in the process of using the fan. It is far from enough to ensure the smooth operation of the fan. It is not enough to start from these aspects. We all know whether the fan can maintain the longest use effect. The maintenance degree of the fan is inseparable in peacetime. A perfect maintenance plan It is a must for users.