Wrong operation 1: The machine overspeed and overloading, such as the diesel generator seriously overspeed and overloading. Easy to cause rough work, the diesel engine will be in the load is too large, the speed is too high working conditions. Cylinder liner, piston, connecting rod and so on bear the heat load and mechanical load increase, easy to occur cylinder pulling, burning tile and other failures. Often overload operation of diesel generator, resulting in a long time of rough combustion in the cylinder, easy to damage the cylinder pad.
Operation 2: Running with low oil pressure is too low. The lubrication parts are not sufficient oil. Therefore, the lubrication system can not carry out normal oil circulation and pressure lubrication. Diesel generator in the process of driving, pay attention to observe the oil pressure gauge or oil pressure indicator. If the oil pressure is found to be lower than the specified pressure, the operation of the diesel generator should be stopped immediately, and then continue to drive after troubleshooting.
Error operation 3: Cooling water and oil oil temperature is too low during the operation of diesel engine. The cylinder wall temperature drops accordingly, and the cooling water temperature is too low. The water vapor generated by combustion condenses into water droplets, which contact with the exhaust gas and form acidic substances, which attach to the cylinder wall and cause corrosion and wear.
Practice has proved that the diesel generator temporarily operates under the condition of low temperature cooling water, the gap between piston and cylinder liner is large, cylinder knocking phenomenon has occurred, and vibration has been generated, resulting in cavitation of cylinder liner. The oil temperature is too low, the oil viscosity is large, the fluidity is poor, the lubrication part is insufficient, the lubrication is poor, the friction pair wear increases, and the service life of diesel diesel generator is shortened.
Operation 4: Temporarily idling the diesel generator at idle speed. Piston top injection cooling effect is poor, lubricating oil pressure is low. Causing a sharp increase in wear, easy to pull cylinder; It can also cause poor atomization, incomplete combustion, serious carbon accumulation, and sometimes even lead to valve and piston ring stuck, cylinder liner cavitation.
Error operation 5: Add cooling water suddenly when the diesel generator temperature is too high. If the diesel engine is short of water and overheated, add cooling water suddenly. When the temperature of diesel generator is too high, the load should be removed first, which will cause cracks in the cylinder head, cylinder liner and cylinder block due to drastic changes in cold and heat. So. Slightly increase the rotational speed, when the water temperature drops, the diesel engine will be turned off, the water radiator cover loosen, eliminate water vapor.
Jiangsu Meao Power Technology Co., Ltd. is an important manufacturer of diesel generators. The company mainly manufactures and sells diesel generator sets with power of 3-3000kW, mobile power station of 24-600kW, Marine emergency diesel generator set of 24-800kW, gas generator set, heavy oil generator set and all kinds of imported series, special series (trailer, static speaker, mobile lighthouse, container, etc.) diesel generator At the same time, we are engaged in generator set maintenance and after-sale service of generator set accessories.
