The noise control level of the air pump and the requirements of the usage environment

The noise control level of the air pump and the requirements of the usage environment

First, noise control level

Source of noise

Mechanical vibration: When the motor, piston, connecting rod and other components of the air pump operate at high speed, they will generate mechanical vibration, which in turn causes noise.

Airflow noise: During the intake and exhaust processes of an air pump, the high-speed flow of air generates turbulence and vortices, resulting in airflow noise.

Electromagnetic noise: Changes in the electromagnetic field within the motor may cause electromagnetic noise, especially in high-power air pumps where it is more pronounced.

Component wear: After long-term use, the internal components of the air pump (such as bearings and piston rings) may wear out, resulting in increased noise.

Noise reduction technology

Structural optimization: By optimizing the internal structure of the air pump, mechanical vibration and airflow noise are reduced. For instance, a streamlined flow channel design is adopted to reduce airflow resistance and minimize the generation of vortices.

Material selection: Use high-strength and low-noise materials, such as shock-absorbing rubber and sound-absorbing cotton, to reduce vibration transmission and noise reflection.

Silencing device: Install silencers at the air intake and exhaust ports to reduce airflow noise by utilizing the principle of sound wave interference.

Dynamic balancing technology: By balancing the centrifugal inertial force generated by the movement of the eccentric wheel mechanism, it reduces vibration and noise.

Magnetic anti-movement technology: It uses magnetic force to control the axial movement of the motor shaft relative to the stator, reducing mechanical noise.

Flexible installation: Use flexible installation feet or shock-absorbing pads to reduce the vibration transmission between the air pump and the equipment casing.

Noise control standard

The noise level of an air pump is usually measured in decibels (dB). The noise control standards for different types of air pumps may vary. Generally speaking, the noise level of industrial air pumps may be relatively high, while household or medical air pumps have stricter requirements for noise control.

Second, requirements for the usage environment

Ambient temperature

The air pump should operate within an appropriate temperature range. Both excessively high and low temperatures may affect its performance and noise level. For instance, high temperatures may cause the lubricating oil inside the air pump to become thinner, increasing mechanical wear and noise. Low temperatures may cause the lubricating oil to thicken, affecting the start-up and operation of the air pump.

Environmental humidity

High humidity environments may cause rust or corrosion of the internal parts of the air pump, increasing the risk of noise and failure. Therefore, when using air pumps in a humid environment, moisture-proof measures should be taken, such as installing moisture-proof covers or using moisture-proof materials.

Environmental cleanliness

Dust and impurities may enter the interior of the air pump, wear out parts and increase noise. Therefore, the air pump should be installed in a clean and dust-free environment, and the air intake filter should be cleaned regularly to prevent dust blockage.

Spatial layout

The installation location of the air pump should be far away from walls or other obstacles to reduce sound reflection and resonance. At the same time, it should be ensured that there is sufficient space around the air pump to facilitate heat dissipation and maintenance.

Shock absorption measures

Install shock-absorbing pads or shock absorbers between the air pump and the equipment casing to reduce vibration transmission and noise. In addition, the air pump can also be installed on a dedicated shock-absorbing platform to further reduce noise.

Sound insulation measures

For environments with high noise requirements, sound insulation measures can be taken, such as installing sound insulation covers or sound insulation walls to isolate the air pump from the surrounding environment.