What are the causes and troubleshooting methods for blue smoke emitted by diesel generators?

Introduction What are the causes and troubleshooting methods for blue smoke emitted by diesel generators? Causes and troubleshooting methods for blue smoke from diesel generators: Cause: This indicates that the engine is burning oil. The main reasons are three

What are the causes and troubleshooting methods for blue smoke emitted by diesel generators?

Causes and troubleshooting methods for blue smoke from diesel generators:

Cause of occurrence: This indicates that the engine is burning oil. There are three main reasons: one is that the piston rings are aligned and oil enters the cylinder; the other is that the oil level of the air filter oil pan exceeds the height of the ring groove; conduit and the valve stem is too large.

Troubleshooting method: Adjust the piston ring so that the ring opening is offset by 120 degrees or 180 degrees. The opening of the ring should avoid the piston pin hole and the direction of greater side pressure adjusts the air filter oil; The oil level should be lowered below the height of the annular groove; If the gap between the pipe and the valve stem is too large, the parts must be replaced to reduce the normal gap between the two. 0.12mm.

The princesThe reasons that cause the black smoke failure of the 300 kW generator are as follows:

1. Air circulation in the engine room where the diesel generator is installed is not good. , and the fuel in the engine room where the diesel generator is installed is insufficient. Combustion occurs in the combustion chamber, decomposing and polymerizing into ink crystal soot, which appears black when the exhaust gases are discharged

; 2. The fuel injection chamber of the fuel injector is broken. If the breakage is found, remove the fuel injector and fuel injection chamber, replace the cracked fuel injection chamber and adjust the injector;

3. . The exhaust back pressure is too high when the diesel generator set is running. Check and correct the exhaust back pressure under load;

4. The injection holethe injector of the diesel generator is blocked. If it is found to be clogged, the injector and injection chamber must be cleaned, replaced and readjusted;

5. Diesel Power Generation The filter element of the unit contains too much dust, the muffler is corroded and contains carbon; deposits or is oily. The gap between the intake and exhaust valves is too large, resulting in reduced valve opening. Parts of the arrangement mechanism are loose, worn and deformed. The relative positions of the camshaft sprocket and crankshaft timing gear change, as well as the valve opening. and the closing time is incorrect;

6. The valves are seriously depressed and the gaps between the piston and the piston pin, the piston pin and the small end of the connecting rod, and the large end of the connecting rod. the connecting rod and connecting rod journal are too large, resulting in an increase in the volume ofthe combustion chamber and a reduction in the compression ratio when the diesel generator set is running;

7. The valve clearance is too small, and the diesel generator set opens easily during operation, or the valve removal and carbon deposits cause the cylinder to be loosely sealed;

8. The cylinder body and piston ring are too worn. If the piston ring is too worn. improperly installed or loses elasticity, it will cause air leakage in the cylinder of the diesel generator set;

9. After long-term high-speed operation, the internal temperature of the diesel generator set will be too high. high or an explosion will occur.

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