Vacuum Pump Noise Sources and Solutions
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If there is noise in the vacuum pump, there may be an internal problem. Today, the editor of Vacuum Supermarket talks with everyone about the source of noise of the vacuum pump and the solution strategy.
- A variety of cylinder combination structures are adopted. Of course, the number of cylinders should be reasonable, and the actual layout should be considered comprehensively.
- It is also possible to install a mechanical vibration damping device. Of course, this kind of device is mostly used in high-speed pumps and pumps with large pumping speed, and the method of adding vibration-proof glue to the pump base is used for vibration damping.
- Vibration caused by fluid action. If the working point of the pump deviates seriously from the point of optimal efficiency: uneven liquid flow and unstable return flow in the blade; local pressure reduction causes cavitation, etc.
- Adjusted from the pump structure, based on actual needs, we can design a standing type, bedroom and other types of pumps. In practice, due to the compact structure and low center of gravity of the horizontal structure, it is more conducive to the reduction of vibration and noise.
- Adopt dynamic balancing method. Generally, it is possible to balance and reduce the inertial force of the eccentric wheel and spool by analyzing and calculating, then adding a balance wheel and adding a weight or a balance wheel to the pulley. Practice has proved that this is an effective method of vibration reduction.
- Vibration caused by mechanical reasons: such as unbalanced rotor components, misalignment of pumps, motors, couplings, shaft bending, gear tooth surface wear, sliding bearing oil film vibration, rolling bearing tracks, steel balls are not round or inside and outside, the ring falls off Unreasonable design or thermal expansion causes excessive pipe resonance, loose anchor bolts, etc.
