The noise generated by the entire facility of the pump room is mainly mechanical noise. Currently, the most commonly used method for noise control in acoustics is to control the propagation path of noise, mainly including sound insulation, sound absorption, and noise reduction. Sound insulation is the use of sound insulation structures to separate the sound source from the sound receiving point; Sound absorption is the use of sound absorbing structures or materials to reduce noise; Silencing is the use of principles such as impedance, resistance, and porous diffusion to reduce the amount of noise.

The noise of water pumps mainly refers to the aerodynamic noise generated during the transportation of gases/liquids, the structural noise excited by the vibration of the motor casing, the noise generated by the vibration of the machine base, and the noise of the motor. This type of noise level peak is mainly concentrated in the low octave band, approximately in the range of 100-450Hz. This sound source belongs to steady-state noise during normal operation of the pump room. Pipeline noise refers to the noise generated when water flows in a pipeline. Besides,Stainless steel vertical pipeline centrifugal pumpThe phenomenon of cavitation and water hammer during pump shutdown can also generate instantaneous noise. The noise generated by water supply pipelines is affected by flow velocity and pressure.

Noise control measures should be based on acoustic principles and make full use of the site environment and conditions as much as possible. For example:

1. Control the noise generated by machinery and equipment components. The foundation of the newly built pump room water pump should be heavy to prevent vibration and noise. Moreover, rubber vibration isolation pads should be installed to reduce vibration noise; Each water pump unit is equipped with a separate foundation to prevent resonance. Use "flexible" connections as much as possible on the suction and pressure pipes of the water pump. Regular maintenance should be carried out to promptly address issues such as leaking gaskets, loose equipment parts, severe wear and tear of equipment components, mechanical vibrations, etc., in order to reduce noise.

2Stainless steel vertical pipeline centrifugal pumpAccording to the pump room environment, soundproof treatment should be carried out for pump rooms with loosely sealed sound sources, sound-absorbing/soundproof treatment should be carried out for rooms that generate noise in the pump room, and soundproof treatment should also be applied to doors and windows.