If the generator cooling water temperature is too low, it will often damage the unit:
1. The temperature in the combustion chamber of the diesel engine will be too low. diesel is injected, it will not be easy to atomize and burn, and part of the diesel will always be in the form of fog droplets. The smoke is discharged with the exhaust gas and the color of the smoke is white.
2. The fuel is not completely burned and forms a colloid, which jams the piston ring in the piston ring groove, blocking the valve and the pressure in the cylinder decreases as compression ends. Certain combustion products combine with condensed water in the cylinder to generate acidic substances that corrode the cylinder and significantly increase engine wear.
3. If the water temperature is too low, the engine oil temperature will also decrease, the engine oilThe oil will thicken, the fluidity will become poor, and the oil volume of the oil pump will decrease, resulting in insufficient oil supply. In addition, the clearance of the crankshaft bearings will become smaller, which will lead to poor lubrication.
What are the advantages and disadvantages of water-cooled and air-cooled diesel generator sets
Diesel generator coolant replacement:
Required after 200 hours of first use or three months Replace it and replace it every 500 hours or one year. Carefully remove the top cover of the water tank, open the drain valve under the water tank, and make sure the outlet is not blocked after draining the cooling water. , flush the cooling system with clean water, close the drain valve and fill it with coolant. Cover the top lid and make sure to meltoperate the unit which has just stopped. Do not open the water tank cover within 15 minutes to avoid water. steam erupt and hurt people.
The advantages and disadvantages of water-cooled and air-cooled diesel generator sets are mainly reflected in the host.
Water-cooled diesel engines have an open cycle and a closed cycle. They have good cooling effect, low noise and are widely used. However, the structure is complex, the manufacturing cost is high, it is relatively bulky, it is easy to corrode, it produces scale, blockages, leaks, it loses a lot of heat, it consumes more oil and it is more difficult to maintain.
The air-cooled diesel engine has simple structure, low manufacturing cost, small size, light weight, low heat loss, relatively fuel efficient, no water leakage, gel, tartar andother defects, short hot-running time and environmental adaptability Good performance and easy maintenance. The disadvantages are loud noise, uneven cooling, high thermal load and high fan power consumption.