How to control noise and vibration when the vane pump runs at high speed?

When vane pumps operate at high speeds, controlling noise and vibration is crucial. Here are some effective measures for achieving this:

1. Design and Optimization
Stator Curve: For fixed displacement vane pumps, adopting higher-order stator curve designs can reduce friction and collisions between the vanes and the stator surface, thereby lowering noise and vibration.
Port Plate Design: Adding triangular grooves in the sealing area of the suction and discharge chambers on the port plate can prevent pressure surges and eliminate trapped oil noise.
Vanes and Rotor: Optimize the design of the vanes and rotor to ensure even distribution of the vanes during operation, reducing imbalance and consequently minimizing noise and vibration.

2. Materials and Processes
Low-Noise Materials: Select materials with excellent acoustic and wear-resistant properties, such as rubber, foam plastics, or sponge, for internal and external components of the vane pump to reduce noise transmission.
Precision Machining: Enhance the machining accuracy of vanes and rotors to ensure uniform clearances between components, minimizing noise and vibration caused by excessive or insufficient gaps.

3. Operation and Maintenance
Adjust Installation Position: Choose an appropriate installation location for the vane pump, away from noise-sensitive areas, and use vibration-damping pads to reduce noise and vibration transmission.
Regular Inspection and Maintenance: Perform regular maintenance and inspections, including cleaning the vanes and checking seals, to ensure normal operation and avoid noise and vibration caused by damaged or worn components.
Balance Testing: Conduct dynamic balance testing on the impeller to maintain balance during high-speed operation, reducing vibration and noise caused by imbalance.

4. Use of Noise-Reduction Equipment
Noise-Reduction Enclosure: Encase the vane pump in a noise-reduction enclosure made of materials like steel plates and sound-absorbing cotton to effectively absorb noise and reduce operating noise.
Soundproof Panels: Install soundproof panels around the vane pump to block noise transmission paths and further mitigate the impact of noise on the surrounding environment.