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Types and advantages of fan blades of centrifugal fans

Types and advantages of fan blades of centrifugal fans

 

 

Centrifugal fan is only one of many fan products, it has good performance, which is also closely related to the design of its blades. The same centrifugal fan is configured with different blade types to meet different application requirements.

 

1. Backward curved fan blades

 

This kind of blade can also be divided into single-plate type and wing type. The backward-curved single-plate blade has large structure size, low pressure coefficient and high efficiency. Therefore, the dynamic pressure accounts for a small proportion of the total pressure. Suitable for heavy wear, i.e. relatively high price. Backward curved wing blades have the same characteristics and should be the most efficient.

 

2. Forward curved blades

 

The blade structure of the forward curved blade is generally smaller, the pressure coefficient is higher, and the efficiency is generally lower. The dynamic pressure accounts for a large proportion of the total pressure, but it has the advantage of low price.

 

3. Radial fan blades

 

In terms of size, the radial fan blades are medium in size; in terms of performance, the pressure coefficient is high, the efficiency is high, and the dynamic pressure accounts for a large proportion of the total pressure, which is suitable for occasions with severe wear; there is no advantage in price.

 

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