如何避免焦化发电机组过度磨损
焦化发电机组在一段时间的使用后难免会出现磨损现象,这是正常现象。但是,如果出现不合理的过度磨损,这样的情况就异常了。可能是由于用户的使用不当,也可能是由于机器发生了某些故障,因此,用户应该要了解哪些因素会使得焦化发电机组磨损,才好对症下药避免其过度磨损的情况。
It is a normal phenomenon that the coking generator set will inevitably be worn after a period of use. However, if there is unreasonable excessive wear, such a situation is abnormal. It may be due to improper use of the user or some faults of the machine. Therefore, the user should know what factors will cause the coking generator set to wear, so as to suit the remedy to the case and avoid excessive wear.
燃料和润滑油的质量要和焦化机的结构相适应。焦化中若含有硫或其它杂质时,在燃烧过程中便会产生酸类和其它腐蚀性物质,加速气缸的磨损;焦化中重质馏分过多,燃烧后便容易形成积炭,使活塞环与气缸产生磨料磨损;
The quality of fuel and lubricating oil shall be compatible with the structure of coking machine. If sulfur or other impurities are contained in the coking process, acids and other corrosive substances will be produced during the combustion process, which will accelerate the wear of the cylinder; If there are too many heavy fractions in coking, carbon deposits will easily form after combustion, which will cause abrasive wear of piston rings and cylinders;
焦化粘度的大小对混合气形成、供油设备工作可靠性都有影响。对润滑油来说,影响大的是粘度和抗氧化性,应根据焦化发电机组焦化机的工作条件合理选择使用,切不可乱用。
The coking viscosity has an effect on the mixture formation and the working reliability of oil supply equipment. For lubricating oil, the viscosity and oxidation resistance are the most important factors. It should be reasonably selected and used according to the working conditions of the coking machine of the coking generator set, and must not be used indiscriminately.
试验表明,焦化机的磨擦随着转速和负荷的增加而增加。因为负荷增加时,磨擦表面上的单位压力增加,热状况不良。当转速增加时,单位时间内磨擦的次数半加,而在同一功率下,转速增加比负荷增加时磨损要大。
The test shows that the friction of coking machine increases with the increase of rotating speed and load. Because when the load increases, the unit pressure on the friction surface increases and the thermal condition is poor. When the rotation speed increases, the number of friction per unit time increases by half, and at the same power, the wear is greater when the rotation speed increases than when the load increases.
但过低的转速由于不能保证良好的液体润滑条件,同样使磨损增加。所以,对一定的焦化机来说,有一个适合的工作转速范围。
However, too low a rotational speed can not guarantee good liquid lubrication conditions, which also increases wear. Therefore, for a certain coking machine, there is a suitable working speed range.
此外,焦化机经常加速、减速、停车和起动等不稳定工作时,由于转速和负荷的频繁变化,焦化机润滑条件不良,热状态不稳定,磨损便增大。特别是在起动时,曲轴转速低,机油泵供油不及时,再加油温低,机油粘度大,磨擦表面难以建立液体润滑,磨损是很严重的。
In addition, when the coking machine often accelerates, decelerates, stops and starts, due to frequent changes in speed and load, the lubrication condition of the coking machine is poor, the thermal state is unstable, and the wear increases. Especially when starting, the crankshaft speed is low, the oil pump does not supply oil in time, the refuelling temperature is low, the oil viscosity is high, the friction surface is difficult to establish liquid lubrication, and the wear is very serious.
使用环境的气温对焦化发电机的磨损也是有影响的。气温高时发动机易过热,润滑油粘度低,零件的磨损便增加。气温低时润滑油粘度变大,焦化机起动困难,工作时冷却水不能保持正常温度,增加零件的磨损和腐蚀。焦化机在低温起动时,磨损更为严重。更多注意事项就来我们网站//www.gz-yanye.com咨询了解吧!
The temperature of the operating environment also has an impact on the wear of the coking generator. When the temperature is high, the engine is easy to overheat, the viscosity of lubricating oil is low, and the wear of parts will increase. When the temperature is low, the viscosity of lubricating oil becomes large, the coking machine is difficult to start, and the cooling water cannot maintain the normal temperature during operation, which increases the wear and corrosion of parts. When the coking machine is started at low temperature, the wear is more serious. More precautions come to our website //www.gz-yanye.com Consult and understand!
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