The sealing performance of Roots vacuum pump is very important, which has a great impact on the use performance of the equipment. A good equipment must have a good sealing performance, so as to keep the internal vacuum performance of the equipment from being affected. Here is a detailed introduction of the sealing form.
1. Oil seal is a self tightening lip seal, which has simple structure, small size, low cost, convenient maintenance and small resistance torque. It can not only prevent medium leakage, but also prevent external dust and other harmful substances from invading roots vacuum pump;
2. Labyrinth seal: when the design is reasonable, the processing is excellent, the assembly is complete and the rotating speed is high, the labyrinth seal effect of vacuum pump is very good;
3. Power seal: when the roots vacuum pump is running, the pressure head generated by the auxiliary impeller balances the high-pressure liquid at the outlet of the main impeller, so as to realize the seal;
4. Packing seal is to put the packing with compressibility and resilience into the packing box, and convert the axial compression force of the gland into the radial sealing force, so as to play the sealing role of Roots vacuum pump.
It is inevitable that the sealing of Roots vacuum pump will be affected after a long time of use. At this time, we need to find the sealing leakage point in time, carry out detection and repair, prevent too much gas from flowing into the equipment, damage the vacuum performance and affect the working efficiency of the equipment. Therefore, the daily use of maintenance work is essential.
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