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How to solve the problem of running noise of negative pressure fan?

    For the negative pressure fan, what we will come to today is the analysis of the cause of its operating noise, and how to take necessary and effective measures for different reasons to solve it well, so that during the operation of the negative pressure fan To avoid this problem.
     
    The operation noise of negative pressure fan, and how to deal with it? For this question, the following Wuxi negative pressure fan manufacturer Hu Lin will give specific answers, so that everyone can thoroughly understand and master, so that they can be put to good use in practice.

     1. If the negative pressure fan is in contact with the window frame when it is installed too tightly, causing the window frame to resonate during operation, then its tightness or packing should be adjusted appropriately. For the bottom of the negative pressure fan, check whether it is stable. If it is not stable, then it is necessary to deal with it. In addition, the spring of the anchor bolt cannot be crushed to avoid problems.

     2. On the negative pressure fan base, the tightening degree of the damping pad or fixing screw is too high, so that it loses the vibration damping effect and generates vibration. At this time, the negative pressure fan base should be damped or fixed. Adjust the tightness of the screws to make them suitable, and restore the damping effect.

    3. The power supply voltage of the equipment is too low, so that the fan has abnormal noise or vibration. The solution is to control the power supply voltage within the rated range, and you can add a voltage regulator to stabilize the voltage. In addition, if there is collision or friction between the blades and the casing, this problem will also be caused. Therefore, the distance between the blades and the casing must be adjusted and controlled to avoid problems.

     4. In the negative pressure fan, if the impeller is not well assembled or the speed is too fast, it will also cause running noise. Therefore, to deal with it, the specific method is to reassemble the fan according to technical requirements, and adjust the speed of the impeller to make it within the appropriate range.