Industrial Pump Noise Control - Acoustic Enclosures

Industrial pumps typically have a noise level of approximately 110dB(A), the intention in this example is to reduce that noise level to 75dB(A) @ 1 meter, or compliance with the Noise at Work Regulations. The pump-set used is an in-line pump with a high-powered motor, which creates vibration in addition to the high noise level. We also provide vibration isolation mounts to control the structural borne noise into the surrounding areas, as part of the wider noise and vibration solution.

The structure, panel specification and build sequence of the acoustic pump enclosures is designed to suit your specific pump equipment and associated source noise control requirements. Depending on the enclosure size, a series of structural steel members and joiners for the acoustic wall and ceiling panels form the modular enclosure. Acoustically compatible doors and windows can be incorporated along with access ports for maintenance, repair and overhaul. Larger removable acoustic panels can also be provided to facilitate the removal of the complete pump-set if necessary.

The internal surfaces of the enclosure are absorptive to control the reverberation build-up. Failure to do this will mean the source noise level within the enclosure will increase, resulting in a higher than anticipated external noise level.

A ventilation system provides air circulation complete with acoustically treated penetrations for pipework etc. OEM control systems are integrated for external access, ensuring operations are unhindered while maintaining noise protection and safety for personnel. Safety systems are also incorporated including task and emergency lighting, alongside fire suppression systems.

The ventilation system is designed to ensure that there is sufficient airflow through the enclosure to cool the pump-set and maintain its ideal operating temperature. Air is ducted into the enclosure, discharged at low level, dissipated and then extracted at high level, through extract fans and ducting. Aerodynamic attenuators are incorporated into the system to maintain the acoustic integrity of the enclosure.

The complete enclosure is then tested and certified to BS EN ISO 11546-2:2009 ensuring when the pump-set is operational, it will achieve 75dB(A) @ 1 meter as specified. With the pump noise control solution implemented, further benefits include;

– Noise at Work compliance

– Personnel safety and welfare enhanced

– Prevention of hearing loss

– Improved working environment

– Reduction in overall facility noise level

Wiltech Acoustics has a deep understanding and capability to deliver high performance industrial pump noise control solutions to satisfy most criteria. We can even provide acoustic pump enclosures of enhanced design and performance above the standard configuration shown in this example.

Please get in touch to review your project specific noise reduction requirements.