Screw vacuum pump return oil how to do

Screw vacuum pump long - term use of the process may encounter a problem: oil return. In addition to the screw vacuum pump without anti-oil return device, this phenomenon is more obvious when the screw vacuum pump stopped working, timely measures can reduce the loss
The placement of the screw vacuum pump has nothing to do with the return of oil. It is the basic principle to prevent the return of oil to cut off the oil line when stopping the pump, eliminate the negative pressure in the pump chamber of the screw vacuum pump, reduce the liquid level difference and reduce the amount of returned oil:
Screw vacuum pump shaft seal and static seal parts to be reliable, timely replacement
Separate the oil near the exhaust valve of the screw vacuum pump from the rest of the oil, the oil level is only slightly higher than the partition wall
The valve seat plane of the screw vacuum pump should be flat and the valve plate should be elastic
The check valve structure is set so that the screw vacuum pump will automatically close the oil inlet hole when the pump stops
Move the tank and exhaust valve to the side to lower the oil level and reduce the amount of oil
Add a tube to the oil hole of the screw vacuum pump so that the oil level is only slightly higher than the inlet
Screw vacuum pump pump port with a filling valve
Screw vacuum pump and auxiliary structure are provided to cut off the oil line when the pump is stopped
After stopping the pump, the pump can be filled with gas to ensure the pressure balance at both ends of the screw vacuum pump
It is recommended to replace the anti - oil valve of the inlet. Because the pump pumping vacuum, when the screw vacuum pump stopped, the vacuum chamber atmospheric pressure is lower than the outside, the screw vacuum pump will be removed from the oil, resulting in the return of oil

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