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Several ways to reduce noise in diesel generators
In general, the generator's noise is set using the following two methods: Buy a silent diesel generator directly, install the generator directly in a closed, silent box, fill the sound-absorbing cotton, and install the hood again. There is a generator at the bottom of the tank, set in a sealed condition, and the advantages of this silent diesel generator are the ease of moving, not affected by the size of the room area, and the rain dust.
The diesel generator room performs noise reduction processing, which is a method of entering the exhaust muffler. The generator room enters the air passage and the exhaust passage respectively acts as a soundproof wall, and sound attenuation is provided to the inlet air passage and the exhaust passage. There is a buffer device in the channel to reduce the intensity of the sound source in the cabin.
Noise reduction in the engine room is mainly based on the causes of noise. The following methods are mainly used: Inlet and exhaust noise elimination: The air inlet and exhaust ducts of the room are used as sound insulation walls, and the inlet and outlet air ducts are set with sound-attenuating effects. There is a buffer device in the channel to reduce the intensity of the sound source in the cabin.
Control mechanical noise: Use high-absorbing sound insulation materials on the top and surrounding walls of the generator to eliminate indoor reverberation and reduce the acoustic energy density and reflection intensity of the engine room. In order to prevent noise from passing through the doors, fire doors are provided.
Controlling smoke noise: The smoke exhaust system is equipped with a special secondary silencer on the basis of the original silencer to ensure effective control of smoke and gas noise. Increase pipe diameter and reduce unit back pressure. The above treatment can improve the noise and back pressure of the generator set. Through noise reduction, the noise of the engine room unit can meet the user's requirements.