Silent Diesel Generator Set Material

There are various types of diesel generator sets. Classified by usage conditions, they can be divided into land - based, marine, trailer - mounted, and vehicle - mounted diesel generator sets. Among them, land - based generator sets include mobile and fixed ones. Land - based units can be further divided into four types: ordinary, fully automated, silent, and low - noise automated.

The noise sources of diesel generators have a wide frequency range and are mainly composed of the following parts: aerodynamic noise, including intake noise, exhaust noise, and cooling fan noise; surface radiation noise, including combustion noise, mechanical noise, and electromagnetic noise. Combustion noise depends on the combustion mode and combustion speed. Mechanical noise mainly includes gear noise, fuel pump noise, valve mechanism noise, piston knocking noise, etc. Reducing the noise of diesel generator sets is mainly achieved through noise reduction in the generator room or using silent diesel generator sets.

Generator room noise reduction: Generally, it is achieved by equipment vibration reduction, internal sound absorption, and internal sound insulation in the generator room. Usually, the generator room is required to have enough space. If there is not enough space, the noise reduction effect of the diesel generator will be greatly affected. In this case, a silent diesel generator can be considered.

The materials of silent generator sets are as follows:

1.Vibration isolation facilities: High - performance shock absorbers are used between the diesel engine, the generator, and the bridge to reduce noise sources.

2.Sound - proof cover: A sound - proof cover made of four to five layers of sound - absorbing materials has obvious sound - absorbing and sound - insulating effects.

3.Intake silencer: A labyrinth - type intake silencer with three layers of sound - absorbing materials ensures sufficient intake of fresh air and effectively seals the noise.

4.Exhaust silencer: A labyrinth - type exhaust silencer with three layers of sound - absorbing materials ensures smooth exhaust and effectively seals the noise transmission.

5.Exhaust muffler: The use of an impedance - composite muffler greatly reduces the noise when exhaust gas is discharged.

6.Power cable connection: A fixed junction box structure is used for direct connection outside the box.

In addition, the structure of the sound - proof cover door is similar to that of the sound - proof cover. Double - layer glass is used for the windows, and the doors, windows, and the sound - proof cover are tightly sealed to maximize the sealing of noise.

Noise emission standards for diesel generator sets: After scientific and reasonable sound - proof treatment of diesel generators, well - known generator set manufacturers on the market can make silent units meet the following noise indicators: The noise of a standard open - frame diesel generator set at a distance of 7 meters is generally about 105 decibels; the noise of a silent generator set at a distance of 7 meters is generally about 70 decibels; the noise of a container - type silent generator set at a distance of 3 meters from the unit is generally below 75 decibels.

Dingbo Power was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. If you want get more information, please feel free to send email to [email protected] we will pay highly attention on your question.