The influence of vibration values on the lifespan of centrifugal fans

In the actual production process, vibration value is an important factor in measuring the quality of centrifugal fans. This is because the vibration value directly affects the service life of the centrifugal fan. We know that equipment generally maintains a high operating speed during operation because many factors can have a certain impact on its vibration, such as the accuracy level of impeller dynamic balance.

In addition, the speed of the impeller, installation accuracy, and the strength of the fan structure will all have different effects. If the vibration value is large, it will inevitably affect the service life of the centrifugal fan. Therefore, vibration values should be controlled within an appropriate range as much as possible during the production process. To achieve this effect, it is necessary to test the dynamic balance of the impeller and the vibration of the entire machine.

When making impellers, due to various factors, the center of mass of the impeller inevitably deviates. The dynamic balance of a centrifugal fan impeller actually refers to adding a certain amount of counterweight to bring the center of mass of the impeller closer to the center of rotation until the required balance level is reached.

Of course, the dynamic balance of the impeller is only one of the relevant factors. The vibration value is also related to the installation conditions. If the installation accuracy is not high, the vibration value of the centrifugal fan is easily too high. If not debugged in a timely manner, it will affect the effectiveness of use.

In response to this situation, it is necessary to promptly debug the performance of the centrifugal fan after installation. We usually judge based on the horizontal, longitudinal, and axial vibration values of the centrifugal fan bearings. If these vibration values are qualified, the centrifugal fan equipment will be allowed to be sold from the factory.