Influence of engine use factors in diesel generator set

The impact of the use factors is multifaceted, such as fuel and lubricating oil quality, diesel engine using speed and load, environmental conditions, and operating conditions. Discussing the impact of these factors has the most practical significance for our practical work.
The quality of fuel and lubricant should be compatible with the structure of the diesel engine. When there is sulfur or other impurities in diesel, the acid and other corrosive substances are generated during the combustion process, and the wear of the cylinder is generated; excessive fraction in the diesel, and it is easy to be large after combustion. Sex, according to the work conditions of the diesel engine, do not use it.
Tests show that the friction of diesel engines increases as the speed and load increase. Because the load increases, the unit pressure on the surface of the friction increases, and the thermal condition is poor. When the speed increases, the number of times the number of times in unit time is half plus, at the same power, the speed increase is larger than the load increases. However, too low speed is not guaranteed to ensure that wear is increased, so that a certain diesel engine has a most suitable operating speed range. In addition, when the diesel engine is often accelerated, decelerated, parking, and start-like unstable operation, due to frequent changes in the speed and load, the diesel lubrication conditions, the thermal state is unstable, and the wear is increased. Especially in the start, the crank speed is low, the oil pump is not in time, then the temperature is low, the oil viscosity is large, the friction surface is difficult to establish liquid lubrication, and wear is very serious.
The use of the temperature of the temperature is also affected by the wear of the diesel engine. When the temperature is high, the engine is easily overheated, the viscosity of the lubricating oil is low, and the wear of the part increases. When the temperature is low, the viscosity of the lubricant becomes large, the diesel engine is difficult, and the cooling water does not maintain normal temperature and increase the wear and corrosion of the parts. When the diesel engine is started at a low temperature, wear is more serious.
The working temperature of the diesel engine is one of the important factors affecting the wear. During use, due to the limitations of the cooling system structure, the workload and speed change, the change in the ambient temperature changes, etc., the change in the working temperature of the diesel engine is large. Practice shows that the temperature of the cooling water is controlled at 75 to 85 ° C, and the lubricating oil temperature is most advantageous at 75 ~ 95 ° C.
In summary, it is necessary to use a diesel engine reasonably, reduce the wear of the part, and must start from the following aspects:
1. Reasonably select the operating conditions of the diesel engine.
2. Improve the quality of the diesel engine.
3. Use fuels and lubricants suitable for engine work.
4. Improve the level of operation technology and maintain maintenance in a timely manner.

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