1. The current of the centrifugal fan motor is too large:
When the centrifugal fan is working, in order to better ensure that it is in a normal operating state, we must provide it with all normal power supply voltages. However, there are also some factors that will cause its motor current to increase. For example, due to the strong vibration of the rolling bearing box, or when the Roots blower is turned on, the water gates of its intake and exhaust pipes are not immediately closed, or the speed ratio of the main shaft bearing is too large, Exceeding the standard value, or the input working voltage of the diagonal flow fan motor is too low, or the power supply of the motor is turned off for a single project.
2. The temperature of the rolling bearing of the centrifugal fan is too high:
For the content of this part, we can consider it according to four levels, it may be because the force distance between the rolling bearing cover of the centrifugal fan and the anchor bolt of the seat is too large or too small; the second is because the rolling bearing box has occurred Relatively strong vibration problem; the roller bearing of the third centrifugal fan is destroyed; the fourth is because the lubrication is not enough, or there is more residue in it.
