Roots rotary lobe blower manual
Roots rotary lobe blower manual
- Precautions when using Roots blower:
- All parts of the fan should be comprehensively inspected to see whether the parts are complete, the tightness of the connection of each bolt and nut, the installation quality of each fastener and positioning pin, the installation quality of the intake and exhaust pipes and valves, etc.
- In order to ensure the safe operation of the blower, no external loads such as pipes, valves, frames, etc. are allowed to be carried.
- Check the centering and alignment quality of the blower and motor.
- Check whether the base of the unit is fully padded and whether the anchor bolts are tight.
- Inject the specified grade of mechanical oil into the oil tank to the oil level line. The lubricating oil grade is N220 medium-load working gear oil.
- Check whether the motor steering meets the pointing requirements.
- A belt cover (protective cover) should be installed at the pulley (coupling) to ensure safe operation.
- Open all the blower inlet and exhaust valves, and rotate the fan rotor. It should rotate flexibly without impact or friction. Only after confirming that everything is normal can the fan be started for trial operation.
- No-load test operation of the blower.
⑴ Newly installed or overhauled fans should undergo no-load test operation.
⑵The concept of no-load operation of Roots blower is to put it into operation with the intake and exhaust valves fully open.
⑶ There is no abnormal smell, smoke, collision or friction sound, and the radial vibration speed of the bearing part is not greater than 6.3mm/s.
⑷ Run without load for about 30 minutes. If the situation is normal, it can be put into operation with load. If abnormal operation is found, it is still necessary to conduct a test run with no load after inspection and elimination. - roots rotary lobe blower manual
- The blower operates normally under load.
⑴ It is required to adjust gradually and slowly, and bring the load up to the rated load. It is not allowed to adjust to the rated load at one time.
⑵The so-called rated load refers to the static pressure difference between the inlet and exhaust ports, according to the calibrated pressure value on the nameplate. When the exhaust port pressure is normal, attention must be paid to the pressure changes at the air inlet to avoid overloading.
⑶ During normal operation of the fan, it is strictly forbidden to completely close the inlet and exhaust valves. Pay attention to regularly observing the pressure to see whether the safety valve operates to exhaust when overloaded. Otherwise, the safety valve should be adjusted in time to avoid overload operation.
⑷Due to the characteristics of the Roots blower, the gas from the exhaust port is not allowed to flow directly back into the air inlet of the blower for a long time (changing the temperature of the automatic lubricating oil inlet port), otherwise it will definitely affect the safety of the machine. If necessary If backflow regulation is used, cooling measures must be taken.
⑸ Always pay attention to the oil level of the lubricating oil, check regularly, and make records to ensure the oil level. The equipment maintenance of Roots blower can be carried out by automatically injecting lubricating oil. - Parking
The blower should not be stopped suddenly when it is fully loaded. It must be gradually unloaded before stopping to avoid damaging the machine. Regarding the emergency stop principle, the user can formulate separate detailed rules. - The safe operation and service life of the blower depend on correct and frequent maintenance and care, and attention should be paid to the signs of any accidents. In addition to paying attention to general maintenance regulations, the following points should be paid attention to.
How does a roots rotary lobe blower work?
- Roots blower consists of two gear rotors and a shell that mesh with each other. One gear rotor is the stator and the other gear rotor is the rotor.
- When the rotor rotates, the gas is sucked into the air inlet of the Roots blower and pushed into the compression chamber between the gear rotors. The exhaust port discharges compressed gas from the compression chamber and pushes the object forward.
- As the rotor and stator rotate, the compression chamber with decreasing volume moves to the exhaust side, and the gas is continuously compressed and then discharged.
- The gear rotor rotates to the new air inlet position, the new compression chamber begins to compress the gas, and the compressed gas moves forward and is discharged.
- This movement process continues, creating air flow to push the gas forward. In this way, the Roots blower achieves the purpose of compressing and discharging gas by removing the volume of the gas compression chamber.
