Why should we pay more attention to the cooling water surface before starting the 600 kW generator s

Before starting the diesel engine and while driving, pay attention to the surface of the cooling water to avoid accidents. The diesel engine operates when the cooling water volume is insufficient or the cooling water and oil temperatures are too high. The cooling water of the diesel engine is insufficient, which affects the cooling effect. The diesel engine cannot be properly cooled, causing the diesel engine to overheat. If the cooling water and engine oil temperatures are too high, the diesel engine will overheat. At this time, the main heated parts such as the cylinder head, cylinder liner, piston assembly and valve have a large heat load, and their mechanical properties, such as strength and toughness, decrease sharply, increasing deformation of the parts, destroys the match spaces between the parts et accelerate the wear of parts. In severe cases, lacerations may occur or parts may become stuck due to thermal expansion, such as stuck pistons, piston rings, cylinder liners and valves. Excessively high temperatures of cooling water and engine oil will accelerate the aging, deterioration and combustion of engine oil, and the viscosity of engine oil will decrease, making it difficult to form and maintain of a film of oil on the friction surface. oxidize and gel, and even lose its lubricating effect, thereby worsening the friction of the cylinder liner, piston and main. Pair lubrication conditions can cause abnormal wear, cylinder pulling, tile burning, shaft sticking and other defects. Overheating of the diesel engine will also aggravate the combustion process of the diesel engine, causing aabnormal operation of the injector, causing poor atomization, increased carbon deposits, and in severe cases, “burning” and “blocking” phenomena. Therefore, before starting the diesel engine, you should pay attention to check the surface of the cooling water to prevent the diesel engine from overheating due to lack of water while driving, you should pay attention to the temperature of the cooling water and engine oil if you notice this. the cooling water and engine temperature are too high (above 95°C), you should take timely measures to avoid more serious accidents.