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Correct operation method of roots blower, and how to carry out no-load operation and normal load operation of high-pressure roots blower?

Source: Roots blower manufacturer Published on: March 5, 2022 Hits:

Roots blower operates at no load.
1) Newly installed or overhauled fans shall undergo no-load test run.
2) The concept of no-load operation of Roots blower: put it into operation when all the inlet and outlet valves are open.
3) During the test run, pay attention to whether the splash of lubricating oil is normal. If it is too much or too little, adjust the oil volume.
4) There is no abnormal smell or smoke, collision or friction sound, and the radial amplitude of the bearing is not greater than 0.08mm.
5) Operate with no load for about 30 minutes, and then operate with load if the condition is normal. If it is found that the operation is abnormal, it shall be checked immediately, and the no-load operation is still required after the fault is eliminated. (2) The blower operates normally with load.
1) Gradually and slowly adjust as required, and load until rated load. It is not allowed to adjust to rated load at one time.
2) The so-called rated load refers to the static pressure difference between the inlet and exhaust ports marked on the nameplate. When the exhaust pressure is normal, pay attention to the pressure change at the inlet to avoid overload.
3) Due to the characteristics of the high-pressure roots blower, it is not allowed to directly return the gas at the exhaust port to the inlet of the roots blower for a long time, otherwise the safety of the machine will be affected.
4) During the normal operation of the fan, it is strictly prohibited to completely close the inlet and outlet valves, nor to overload operation.
5) When the blower operates under rated conditions, the surface temperature of each rolling bearing generally does not exceed 85 ℃, the lubricating oil temperature in the oil tank does not generally exceed 65 ℃, and the radial vibration near the bearing does not exceed 0.08mm.
6) Always pay attention to the splash of lubricating oil and the position of oil quantity