Is your air compressor too loud? The constant hum is unbearable. So how can you reduce the noise of your factory's air compressors? This has real implications for improving productivity and protecting workers. We'll explore the causes of compressor noise, practical methods for reducing air compressor noise, and how to protect workers on site.
Since industrial air compressors need to continuously provide compressed air at high power and high load, the continuous movement of internal components will inevitably produce noise.
1.Airflow: Airflow noise is generated by high-speed suction at the air intake, filter vibration, or compressed gas being discharged from the exhaust valve.
2.Machinery and motors: mechanical noise caused by friction and collision between machines, and electromagnetic noise during motor operation.
3.Vibration: The air compressor is not fixed correctly or there is an unbalanced force between the main unit and the motor causing vibration.
Reciprocating air compressor: The noise is relatively loud. Since the piston continuously reciprocates, each movement will generate noise.
Rotary screw air compressor: Compared with other types of air compressors, the noise is relatively small. The continuous rotation of the screw is characterized by continuous and smooth movement, which reduces the noise generation.
Centrifugal air compressor: Its noise level cannot be simply defined as a level; the noise level is affected by the size and speed of the compressor, and the noise level of machines of different sizes and speeds varies greatly.
Choose low-noise equipment
As mentioned earlier, rotary screw air compressors are preferred, as they are generally quieter than reciprocating air compressors.
Install the air intake muffler
The most direct way is to install a resistant, porous diffusion muffler at the air intake; extend the length of the intake pipe and move the air intake out of the working area.
Install the exhaust muffler
Install a silencer on the gas tank or exhaust pipe; it should be noted that when designing the pipeline, it is necessary to avoid sharp turns and large changes in pipe diameter.
Vibration reduction treatment
Install vibration-damping bases, such as rubber vibration-damping pads and spring vibration dampers; install flexible joints, and use corrugated steel hoses or rubber connections at the air inlet, exhaust port, and where the cooling water pipes and rigid pipes are connected.
If the noise is still too loud after the above source control, you can choose to modify the working environment of the air compressor on a small scale.
Build a soundproof enclosure
Build a metal soundproof cover around the air compressor and choose suitable sound-absorbing materials as the lining, but pay attention to the heat dissipation problem.
Reducing air compressor noise can not only prevent occupational hearing loss, but also improve work efficiency, reduce psychological stress, and improve communication efficiency and safety.
When it comes to noise treatment of air compressors, we often inspect, improve and maintain them to reduce wear and tear while increasing the life of the machine.
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