Roots blower, as a rotary machine, has relatively stable working characteristics. With simple structure and convenient manufacturing, it is suitable for gas transmission and pressurization in low pressure occasions, and can also be used as a vacuum pump. Recently, some customers reported that the Roots blower was leaking oil in use. This may be caused by overfilling or seal wear.
The reason for the conflict between impellers: there are impurities on the impellers, so the gap between impellers is too small; Bearing wear leads to increased clearance.
Treatment method: remove the dirt and check whether the internals are damaged; Adjust the clearance between gears. The reason for the high temperature of Roots blower: there is too much oil in the oil tank of Roots blower and its filter is blocked; Excessive wear of impeller; The ventilation is not good, and the indoor temperature is too high, resulting in high inlet temperature; Treatment method: lower the oil level or carry oil.
Remove the blockage; Lower the pressure difference passing through Roots blower; Correction gap; Open vents to lower the room temperature; Increase the rotating speed to avoid belt slipping. Roots blower flow lacks its reason: Roots drum The inlet filtration of the fan is blocked; Treatment method: remove the dust and blockage of the filter; Tension the belt and add the number; Adjust the inlet pressure to reach the regular value; Review and correct the pipe.
The oil of Roots blower leaked into the casing. Its cause: Roots drum The oil tank of the fan is too high and leaks out from its oil drain; Its seal is damaged, resulting in oil leakage at the shaft end; The pressure is higher than the regular value. Treatment method: reduce the oil level; Replace the seal; Dredge its vents. The reason why the motor of Roots blower is excessively cut: compared with the regular pressure, the pressure difference is too large.
1. View Roots drum Whether there are pollution impurities on the fan impeller and the gap is too small; Remove the dirt and check whether the internals are damaged.
2. The gear of Roots blower is worn and the backlash is large; Adjust the gear clearance. If the gear backlash is greater than 30%~50% of the average value, replace the gear.
3. The gear of Roots blower is not firmly fixed, and the impeller synchronization cannot be insisted; Reassemble the gear and stick to the taper to reach 75% of the touch area.
4. Roots drum The fan bearing wear causes the clearance to increase; Replace the bearing.
I believe that after reading the above, you should also have a good idea of how to solve Roots drum I understand the problem of fan oil leakage, and hope it will be helpful to everyone.
Text label: Roots blower
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