04,22,2026 14 views
causeLow flow high-pressure blowerThe main reasons for severe vibrations are as follows:
(1) The fan shaft and motor shaft are not concentric;
(2) The stiffness of the foundation or overall support is insufficient;
(3) Loose bolts, rivets, etc., or deformation of the impeller;
(4) The fit between the impeller shaft disc hole and the shaft has become loose;
(5) Dust or dirt on the blades, or wear or deformation, can cause the rotor to become unbalanced;
(6) The inlet and outlet pipelines of the fan are not installed properly, resulting in resonance phenomenon;
(7) The temperature rise of the bearing is too high, or there is severe vibration in the bearing box;
(8) The quality of lubricating grease is not up to standard, or it contains impurities or has deteriorated;
(9) Friction, bending, or damage occurs between the inner and outer rings of rolling bearings;
(10) Friction occurs between the casing or air inlet and the impeller;
(11) Excessive motor current or high temperature rise;
(12) When the fan is started, the regulating valve or the gate inside the exhaust pipe is not tightly closed;
(13) The input voltage of the motor is too low, causing a single-phase power outage in the power supply;
(14) The temperature of the conveying medium is too low, causing the motor to operate at overload;
(15) The system cannot match the performance of the fan, resulting in the fan being in a low-pressure and high flow area and unable to operate well.
