Haixing points out common misoperations of diesel generators

Improper operation of the diesel generator will seriously affect the dieselGenerator setservice life, Haixing will work with you to learn about the use of diesel fuel in daily life.Generator setWhat are the wrong operating methods? Haixing believes that timely correction of wrong operations during the use of diesel generator sets can avoid accidents to a large extent, and can also facilitate maintenance work and extend the service life of the equipment. Benefits Quite a lot!
1: Diesel engine runs when there is insufficient engine oil
At this time, insufficient oil supply will cause insufficient oil supply to the surfaces of each friction pair, resulting in abnormal wear or injury. For this reason, it is necessary to ensure sufficient engine oil before starting the diesel generator and during the operation of the diesel engine to prevent cylinder pulling and tile burning failures due to lack of oil.
2: Emergency stop with load or stop immediately after sudden load removal
After the diesel engine generator stalls, the circulation of cooling water stops, the heat dissipation capacity is sharply reduced, and the heated parts lose cooling, which can easily cause the cylinder head, cylinder liner, cylinder block and other parts to overheat, produce cracks, or cause the piston to overexpand and get stuck in the cylinder liner. Inside. On the other hand, if the diesel generator is stopped without idling to cool down, the friction surface will be insufficiently oiled. When the diesel engine is started again, poor lubrication will aggravate wear and tear. Therefore, before stalling, the diesel generator should unload the load, gradually reduce the speed, and run without load for a few minutes.
Three: Running under load without warming up after cold start
When the diesel generator is cold started, due to the high viscosity and poor fluidity of the oil, the oil pump supplies insufficient oil, and the friction surface of the machine is poorly lubricated due to lack of oil, causing rapid wear and even malfunctions such as cylinder pulling and tile burning. Therefore, after the diesel engine is cooled and started, it should be run at idle speed to warm up, and then run with load when the standby oil temperature reaches above 40°C; the machine should be started in low gear, and drive for a certain mileage in each gear sequentially until the oil temperature is normal and the oil supply is sufficient. After that, you can switch to normal driving.
Four: The diesel engine slams the accelerator after cold start
If the throttle is pushed hard, the diesel generator speed will increase sharply, which will cause some friction surfaces on the machine to wear violently due to dry friction. In addition, when the throttle is hit, the force received by the piston, connecting rod and crankshaft changes greatly, causing violent impact and easily damaging the parts.
Five: Operation when the cooling water volume is insufficient or the cooling water and engine oil temperatures are too high.
Insufficient cooling water of the diesel generator will reduce its cooling effect, and the diesel engine will overheat because it cannot be properly cooled; too high temperatures of the cooling water and engine oil will also cause the diesel engine to overheat. At this time, the diesel generator cylinder head, cylinder liner, piston components and valves are mainly subjected to large thermal loads, and their mechanical properties such as strength and toughness decrease sharply, which increases the deformation of the parts, reduces the fitting clearance between parts, and accelerates the wear of the parts. , in severe cases, cracks and machine parts may become stuck. Overheating of the diesel generator will also worsen the combustion process of the diesel engine, causing the injector to work abnormally, causing poor atomization and increasing carbon deposits.