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Reasons And Solutions For Abnormal Smoke Color Of Diesel Generator Sets

Jul. 14, 2022

When the diesel generator set is working normally, the exhaust gas is almost colorless and transparent. When the unit does not work normally, the exhaust gas will be black, white, blue and other abnormal colors. Generator manufacturers remind users to carefully analyze the cause of abnormal smoke color and remove the fault in time, which not only saves fuel, but also reduces the wear and consumption of the unit, and can maximize the working efficiency of diesel generator sets. Below, Jiangsu Starlight Electricity Equipments Co.,Ltd. will share with you the reasons and solutions for abnormal smoke color of diesel generator sets.

 

The reason for the black smoke from the diesel generator set: the diesel fuel injected into the cylinder is poorly atomized or not fully burned, and becomes black carbon particles under high temperature and high pressure, which is mixed in the exhaust gas and discharged.

 

Processing method:

1. If the diesel engine is overloaded, check and correct the fuel injector.

 

2. If the injector is not working well, adjust the injector until the atomization, range, pressure and injection area meet the standards.

 

3. If the fuel supply time is too late, adjust the fuel supply advance angle.

 

4. If the inlet and exhaust valve clearances are incorrect, adjust the valve clearances as required.

 

5. If the air filter or muffler is blocked, it should be removed in time.

 

diesel generator set


The reason for the white smoke from the diesel generator set: the temperature of the diesel engine is too low, and the diesel injected into the cylinder cannot be completely burned, and the diesel is discharged as white fog or steam along with the exhaust gas. In addition, the fuel injected into the cylinder contains water, which also makes the exhaust white.

 

Processing method:

1. If the engine is not preheated enough and the temperature is too low, heat water in the water tank before starting. Drain the oil if necessary and add it after heating.

 

2. If there is water in the fuel tank, check the leak and block it. Then, let go of the water and oil, and add anhydrous oil.

 

3. If the injector is not working well, adjust or replace the injector.

 

4. If the fuel supply time is too early, the fuel supply advance angle should be adjusted.

 

Diesel generator set emits blue smoke Reason: A large amount of oil enters the combustion chamber and burns.

 

Solution: If there is too much oil in the oil pan, exceeding the specified height and causing the oil to enter the combustion chamber, you should check the oil dipstick and release the excess oil.

 

1. If the opening of the piston ring is in a straight line or the elasticity of the piston ring is insufficient, the piston ring is reversed and worn too much or is broken, causing the oil to run up, the ring opening should be staggered, the piston ring should be installed correctly or the unqualified piston should be replaced.

 

2. If the piston and cylinder sleeve are seriously worn, the piston and cylinder should be replaced.

 

3. If the valve rod and valve guide are worn, causing oil to leak into the cylinder, the worn rod should be replaced.

 

4. If the oil level of the air filter is too high, causing the oil to be sucked into the combustion chamber with the air, the excess oil should be drained).

 

The above is the fault analysis of Jiangsu Starlight Electricity Equipments Co.,Ltd. on the abnormal smoke color of diesel generator sets in use. If users are unclear, they can contact the professional after-sales service personnel of Jiangsu Starlight Electricity Equipments Co.,Ltd.'s diesel generator sets for consultation.

 

Founded in 1974, Jiangsu Starlight Electricity Equipments Co.,Ltd. is a wholly-owned subsidiary of Jiangsu Starlight Power Group. It is one of the earliest manufacturers of generator sets in China. Starlight Power has 64 sales and service departments, which provide users with long-term technical advice, free debugging, free maintenance, and free training services. Looking forward to your inquiry, for more details, please contact us with sales@dieselgeneratortech.com.


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