2026-04-10Views：
Screw air compressor sound may have a variety of reasons, the following is a summary of some common reasons:
motor noise: when the motor is running, it will produce mechanical noise, electromagnetic noise and ventilation noise. Among them, ventilation noise is usually large, followed by mechanical noise, and electromagnetic noise is relatively small.
Fan noise: Rotational noise and eddy noise are generated when the fan is running. When the fan is running under the design conditions, the efficiency is high and the noise is low. However, when the fan deviates from the design condition, the noise will increase, especially when the air volume decreases, the noise increase is more obvious.
Pipe intake noise: The speed pulsation or pressure pulsation of the gas in the intake pipe will produce intake noise. Since the intake port is usually connected to the air source end, the intake noise is often greater than the noise in other parts.
Gas valve noise: when the gas valve is started and the gas flow in the gas valve channel changes, it will cause gas sound and solid sound, resulting in noise.
Noise caused by equipment failure: This type of noise is usually loud and harsh, and it is easier to detect. For example, the belt is too loose, the active and passive belt groove type does not conform to cause skidding and howling, or the metal dry friction howling caused by the failure to supply oil immediately after the air compressor runs.
The factors of the body itself and the design of the mechanism: the design of the body, the rationality of the mechanism and the fastening of the components may affect the noise level of the air compressor. For example, the loosening of the anchor or imported filter fixing bolts, and the loosening of the fastening gear nuts may cause increased noise.
In order to reduce the noise of the screw air compressor, a series of effective measures can be taken, such as the installation of sound insulation cover and sound insulation materials, reasonable layout of the work area, regular maintenance of equipment, vibration control and wearing earmuffs and the use of protective earplugs. These measures can be used alone or in combination to improve the working environment and protect the hearing health of employees.
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