How to deal with screw vacuum pump leakage

Hot push vacuum pump: screw vacuum pump, water ring vacuum pump, roots vacuum pump, oil-free vacuum pump, etc. First, what to do about the screw vacuum pump leakage
How to deal with screw vacuum pump leakage
During the use of the screw vacuum pump, air leakage will be affected. Many users think it is the quality of the equipment, so they will change to a new equipment. However, the cause of air leakage is not only the quality problem
1. Front and rear side covers with different centers
That is, the front and back cover of the screw vacuum pump has a large degree of coaxiality, the result is the same as the bearing skew
2. Temperature of liquid ring increases
As the liquid ring temperature increases, the saturated vapor pressure also increases, which reduces the vacuum of the screw vacuum pump, but this has no effect on the exhaust pressure
3, the seal is not tight
Tighten all connection bolts and packing gland of the screw vacuum pump, tightly wrap the pipe and the place where the meter is connected with other parts, or replace the gasket and packing. For screw vacuum pump air leakage, can also be coated with oil lime and other temporary remedial measures
4. Bearing skew
This phenomenon makes the impeller tilted in the screw vacuum pump pump body, for the single-acting pump, its axial clearance is not uniform, impeller rotation, there will be part of the side cover friction, abrasion side cover and impeller end face, so that the axial clearance increases
Compressed cavity gas through the increased gap, a large number of leakage into the suction cavity, so that the screw vacuum pump vacuum or exhaust pressure to reduce
At this time the screw vacuum pump bearing must be removed for repair, and then the correct installation
Screw vacuum pump is a kind of pump shell for synchronous high-speed reverse rotation and the suction and exhaust effect of the air pumping equipment, screw vacuum pump in the use of the process of air leakage need to be timely treatment, usually also need to be well maintained

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