Intake Duct and Exhaust duct Are important to Reduce Noise

Dec. 28, 2021

Diesel generator operation is a certain noise, bring people trouble, but in fact, most of the diesel generator noise from the exhaust noise, if no muffler, at a certain speed, noise can reach more than 100 decibels.  In life brings some troubles, plus the muffler will also reduce the noise of the generator set under a certain program, let's see.  

 

The precondition for the normal operation of diesel generator set.  In order to meet the noise reduction effect, it is necessary to consider the ventilation requirements of the diesel generator for the machine room. Because the diesel generator set needs a lot of fresh air during operation, it is necessary to design the exhaust and exhaust duct of the machine room that can meet the requirements. A lot of noise is also spread to the outside of the machine room from the intake duct and exhaust duct.  

 

Reasonable design of the air inlet and exhaust duct is an important link to reduce noise. The air inlet and exhaust duct of the diesel generator set are made of folded brick air duct, with a special air inlet muffler and exhaust muffler, and sound-absorbing materials and perforated sound-absorbing board are installed in the inner cavity. At the same time, in order to ensure the normal operation of the unit at rated power for a long time,  Sufficient exhaust area must be reserved for the intake and exhaust vents of the unit according to the use requirements of the unit. Low-noise axial flow fans should be installed in the exhaust pipes of the unit to ensure sufficient ventilation volume in the machine room. Noise reduction is expected to be 25-30DBA by the above means.  


 Intake Duct and Exhaust duct Are important to Reduce Noise


Exhaust noise is the main noise source of the unit. It is estimated that TL= 30-40dba can be reduced by using two mufflers in series for secondary noise reduction. On the other hand, the connection of exhaust pipe must have good sealing performance, and part of the noise is discharged to the atmosphere through the exhaust pipe.  In order to prevent the unit from operating for a long time and affecting the output power of the unit, the exhaust gas exhaust pipe and smoke exhaust muffler of the unit are insulated and insulated.  

 

Reduce engine exhaust noise, and make high temperature exhaust gas can be safely and efficiently discharged.  As a part of the exhaust pipe, the muffler should ensure its exhaust smooth, small resistance and sufficient strength.  Muffler to withstand 500℃~700℃ high temperature exhaust, no damage, no loss of muffler effect.  Today's Dingbo power is introduced here is over, the above is about diesel generator noise reduction, muffler used to reduce the exhaust noise of engine, and the high temperature exhaust gas discharge can safely and effectively, so if there is no exhaust muffler, diesel generating set is unable to use, hope the Dingbo power can help to you.  


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