Wholesale low noise fan selection Zhangqiu Chang Sheng detail the amount of wind turbine fan Chang Sheng: Roots blower abnormal vibration and noise should stop immediately, check for the following questions: ⑴ rolling bearing clearance exceeds the specified value or bearing wear; ⑵ gear backlash is too large blower, misalignment, stationary tight; ⑶ due to foreign matter and dust caused by the impeller and the impeller, the impeller and the housing crash; ⑷ due to overload, the impeller shaft deformation caused by the collision; ⑸ due to overheating caused by the impeller and housing inlet friction; ⑹ the impeller due to fouling or foreign body out of balance; ⑺ anchor bolts and other fasteners loose. Solution abnormal vibration and noise when the blower appear: ⑴ replacement of bearings or bearing; ⑵ reloading gear and ensure backlash; ⑶ cleaning blower, check the cabinet is damaged; ⑷ check back pressure, check whether the impeller, and adjust the gap; ⑸ Check the filter and back pressure, increasing the impeller and housing inlet gap; ⑹ cleaning impeller and casing, ensuring the impeller clearance; ⑺ tighten the bolt and leveling the base.