Installation matters of centrifugal fan

The installation of the centrifugal fan unit should be directly placed on the foundation and leveled with pairs of inclined shim irons. For centrifugal fans assembled on site, the cutting surface on the base should be properly protected. The bearing seat and the base should be tightly connected. The rotor axis line and the housing axis line should be calibrated before the bearing bush is rubbed. When assembling the main shaft and the bearing bush, they should be inspected according to the equipment technical documents. When assembling the fan casing, the position of the casing should be aligned based on the rotor axis line and the axial and radial gaps between the impeller inlet and the casing inlet should be within the range specified in the equipment technical documents at a high speed. Also check whether the anchor bolts are tight . For centrifugal fans assembled with rolling bearings, the bearing holes on the two bearing frames have different axial degrees, which can be subject to f lexible rotation after the rotor is installed.

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