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Several common erroneous operations of diesel generators
- Jan 18, 2018 -

The incorrect operation of diesel generator will seriously affect the life of diesel generator set. Now let's learn about several common ways of incorrect operation of diesel generator set in daily life.  


Diesel generator diesel engine operation: a wrong operation at this time due to oil supply shortage caused by the friction surface of oil supply shortage in the oil shortage, resulting in abnormal wear or burn. Therefore, the operation process of the diesel generator and started before the diesel engine to ensure adequate oil, prevent the oil shortage caused by the cylinder, the tile burning fault.


Diesel generator operation error two: load emergency shutdown or sudden load removed immediately after the shutdown, the diesel engine generator cooling water circulation system after flameout stop, cooling capacity decreased sharply, causing the loss of cooling heating element, cylinder cover, cylinder liner, cylinder parts overheating, crack, or the piston is excessive stuck in the cylinder expansion. On the other hand, when the diesel generator is shut down, it will cause the oil on the friction surface to be insufficient if it is not cooled at idle. When the diesel engine starts again, it will cause more wear due to poor lubrication. Therefore, the load should be removed before the diesel generator is extinguished, and the speed and load should be gradually reduced for a few minutes.


Diesel generator operation error three: after a cold start not with warm start load operation of diesel generator cooler, because the oil of high viscosity, poor mobility, is the oil pump oil supply shortage, the machine friction surface due to lack of oil lubrication, causing rapid wear, scuffing, even burning tile fault. Therefore, after the start of diesel engine cooling should be idle until the oil temperature, the temperature reached 40 degrees above and with a load operation; the machine should start low gears, and sequentially in each gear driving a fuel mileage, until the temperature is normal, after the full, we can turn to normal driving.


Diesel generator error operation four: If the throttle after the cold start of the diesel engine, if the throttle hits the throttle, the speed of the diesel generator rises sharply, causing some friction surfaces on the aircraft to be drastically worn due to dry friction. In addition, the throttle when the piston, connecting rod and crankshaft acceptance force changes, causing violent impact, easy to damage the mechanical parts.


Diesel generator error operation five: in the cooling water is insufficient or cooling water, the oil temperature is too high running diesel generator insufficient cooling capacity will reduce the cooling effect, the diesel engine is not effective cooling due to overheating; cooling water, oil The oil temperature is too high, can cause diesel engine overheating. Diesel generator cylinder head at this time, cylinder sleeve, piston assembly and valve and other major heating load, its mechanical properties such as strength, toughness, a sharp decline in parts deformation increases, reducing the parts with the gap, accelerate wear and tear In severe cases, there will be cracks, mechanical parts stuck in the fault. Diesel generator overheating can also worsen the combustion process of the diesel engine, so that the injector work abnormalities, poor atomization, carbon deposition increased.