Hydrodynamic Noise Reduction Optimization Enables Pump Operation to Meet Strict Environmental Noise Standards of European and North American Industrial Parks

Liquid turbulence, cavitation and high-speed liquid friction against runner walls are the main sources of pump operation noise apart from mechanical vibration noise. When pumps run continuously in closed workshops, cumulative noise will exceed the decibel standard stipulated by local environmental protection laws, resulting in rectification orders for factory production lines and restricted production operations. Many small and medium chemical enterprises in developed regions face renovation pressure on high-noise fluid equipment every year.

Yida carries out fluid simulation analysis on the internal flow field of each pump model, optimizes the arc curve of impeller blades to reduce liquid separation and turbulent vortex inside the pump cavity. All turning positions of the pump inner wall adopt streamlined smooth transition to eliminate local high-speed liquid impact points. The optimized internal flow field reduces liquid turbulent noise and mild cavitation noise generated under conventional working pressure. Combined with the previous vibration damping structure of the unit, the overall running noise value of the pump is controlled within the range required by mainstream international industrial environmental assessment standards.

Low-noise optimized pump units are suitable for indoor closed production workshops, pharmaceutical synthesis workshops and electronic precision manufacturing factories with high environmental requirements. While ensuring stable fluid conveying capacity, the product helps global clients save additional noise reduction renovation investment and smoothly meet the daily environmental supervision assessment of local industrial parks, further consolidating the product market share in high-standard environmental control markets of developed industrial areas.