How should Roots blower be maintained daily?

Routine maintenance of Roots blower:

1. The fan should not be installed in places where people often come in and out to prevent injury.

2. The fan shall not be installed in the place where inflammable, explosive and corrosive gases are easily generated, so as to prevent fire disaster, poisoning and other accidents.

3. According to the direction of the air inlet and outlet and the maintenance needs, there should be adequate space around the foundation surface.

4. When installing the fan, check whether the foundation is firm, whether the surface is flat, and whether the foundation is higher than the ground.

5. When the fan is configured outdoors, a canopy shall be set.

6. The fan can be used for a long time under the ambient temperature of no more than 40 ℃. When the temperature exceeds 40 ℃, exhaust fan and other cooling measures should be installed to improve the service life of the fan.

7. When conveying air medium, its dust content shall not exceed 100mg/m3 generally.

8. Precautions for operation and use

(1) All parts of the fan shall be checked to see whether they are complete, the tightness of bolts and nuts, the installation quality of fasteners and locating pins, and the installation quality of air inlet and exhaust pipes and valves.

(2) In order to ensure the normal operation of the blower, the bearing pipes, valves, frames and other external loads shall not be allowed.

(3) Check the centering and alignment quality of blower and motor.

(4) Check whether the base of the unit is fully padded and whether the foundation bolts are fastened.

(5) Fill the oil tank with mechanical oil of specified brand into the oil level line, and the lubricating oil brand is N220 medium load working gear oil.

(6) Check whether the rotation direction of the motor meets the pointing requirements.

(7) Belt cover (protective cover) shall be installed at belt pulley (coupling) to ensure normal operation.

(8) Fully open the inlet and outlet valves of the blower, and turn the rotor of the blower. It should rotate flexibly without impact and friction. Only when it is confirmed that everything is normal can the blower be started for trial operation.

9. No load test run of blower

(1) Newly installed or overhauled fans shall undergo no-load test run.

⑵ The concept of no-load operation of Roots blower is to put it into operation when the inlet and outlet valves are fully opened.

⑶ There is no abnormal smell or smoke, collision or friction sound, and the radial vibration speed of the bearing is not greater than 6.3mm/s.

⑷ Run with no load for about 30 minutes. If the condition is normal, put it into load operation. If the operation is abnormal, check and eliminate it, and still need to run with no load.

10. The blower operates continuously under normal load.

(1) It is required to gradually and slowly adjust the load to the rated load. It is not allowed to adjust the load to the rated load at one time.

(2) The 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 pressure at the exhaust port is normal, pay attention to the pressure change at the air inlet to avoid overload.

(3) Always pay attention to the oil quantity position of lubricating oil, check regularly, and make records to ensure the oil quantity.