What are the problems when the axial pitch of a roots blower is not correct? When we use the Roots blower, a series of problems may occur due to the lack of reasonable adjustment of the axial pitch.

The reasons for the wear of the bearing end face of the Roots blower are: there may be impurities into the rotor and bearing seat end face, the probability of this appearing is not large, and there may also be because the axial clearance of the fan is not enough to cause the rotor to contact the bearing end face when it expands and wears. When the Roots blower generates pressure, then the gas will also generate temperature. The rotor of the blower may not have enough clearance and cause the rotor to rub against the housing.

If the axial clearance of the fan is too small, then the end cap and impeller will wear and friction will cause the bearing temperature of the fan to become high, causing damage to the bearing and sealing ring. If the axial clearance of the fan is too large, the efficiency of the fan will become low. Since the three-leaf Roots blower is a volume fan, the wind pressure of the fan is related to the system, that is, the flow of the fan and the speed of the fan have a great relationship.

However, if the axial clearance of the fan is adjusted too much, it may form an air channel at the end of the impeller and the end of the casing, and the air channel returns to the air inlet of the fan through the pressurized air, which makes the fan perform useless work and reduces the efficiency of the fan.