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Posted on 06-29-17, 08:37 am


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Since: 05-23-17

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Disadvantages: because the impeller running speed is high, so the need for thicker shaft and larger bearings and the balance of the higher requirements, the other DC Axial Fan pressure fluctuations easily lead to changes in working conditions

Applicable places: air ventilation, fire, dust, smoke

Through the analysis, I think in the choice of fans, in addition to the size of the fan body, costs, cover area and other initial investment comparison, also need to consider efficiency of the fan, power consumption and other operating costs.

1, In the general ventilation and air conditioning system, recommend the use of 4-72 centrifugal fan. The fan is a hollow airfoil blade, the highest efficiency ?max> 91%, the noise is low.

2, In the boiler blowing system and the water heater, heating furnace blast system, recommend the use of G4-73 and Y4-73 centrifugal fan, the fan for the tilting wing airfoil oblique blade fan, the highest efficiency of the fan ?max>90.5%.

3, A higher wind pressure system and wind pressure greater than 800 mm water column required, you can use 8-18 or 9-27 type forward centrifugal fan, although the efficiency of these two fans is low, the Backward Centrifugal Fan can not meet the requirements of high wind pressure. To meet the technical requirements, only to choose the forward blade of the fan.
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