如何避免焦化發(fā)電機組過度磨損
焦化發(fā)電機組在一段時間的使用后難免會出現(xiàn)磨損現(xiàn)象,這是正常現(xiàn)象。但是,如果出現(xiàn)不合理的過度磨損,這樣的情況就異常了。可能是由于用戶的使用不當(dāng),也可能是由于機器發(fā)生了某些故障,因此,用戶應(yīng)該要了解哪些因素會使得焦化發(fā)電機組磨損,才好對癥下藥避免其過度磨損的情況。
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.
燃料和潤滑油的質(zhì)量要和焦化機的結(jié)構(gòu)相適應(yīng)。焦化中若含有硫或其它雜質(zhì)時,在燃燒過程中便會產(chǎn)生酸類和其它腐蝕性物質(zhì),加速氣缸的磨損;焦化中重質(zhì)餾分過多,燃燒后便容易形成積炭,使活塞環(huán)與氣缸產(chǎn)生磨料磨損;
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;
焦化粘度的大小對混合氣形成、供油設(shè)備工作可靠性都有影響。對潤滑油來說,影響大的是粘度和抗氧化性,應(yīng)根據(jù)焦化發(fā)電機組焦化機的工作條件合理選擇使用,切不可亂用。
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.
試驗表明,焦化機的磨擦隨著轉(zhuǎn)速和負(fù)荷的增加而增加。因為負(fù)荷增加時,磨擦表面上的單位壓力增加,熱狀況不良。當(dāng)轉(zhuǎn)速增加時,單位時間內(nèi)磨擦的次數(shù)半加,而在同一功率下,轉(zhuǎn)速增加比負(fù)荷增加時磨損要大。
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.
但過低的轉(zhuǎn)速由于不能保證良好的液體潤滑條件,同樣使磨損增加。所以,對一定的焦化機來說,有一個適合的工作轉(zhuǎn)速范圍。
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,焦化機經(jīng)常加速、減速、停車和起動等不穩(wěn)定工作時,由于轉(zhuǎn)速和負(fù)荷的頻繁變化,焦化機潤滑條件不良,熱狀態(tài)不穩(wěn)定,磨損便增大。特別是在起動時,曲軸轉(zhuǎn)速低,機油泵供油不及時,再加油溫低,機油粘度大,磨擦表面難以建立液體潤滑,磨損是很嚴(yán)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.
使用環(huán)境的氣溫對焦化發(fā)電機的磨損也是有影響的。氣溫高時發(fā)動機易過熱,潤滑油粘度低,零件的磨損便增加。氣溫低時潤滑油粘度變大,焦化機起動困難,工作時冷卻水不能保持正常溫度,增加零件的磨損和腐蝕。焦化機在低溫起動時,磨損更為嚴(yán)重。更多注意事項就來我們網(wǎng)站http://elmasticar.com咨詢了解吧!
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 http://elmasticar.com Consult and understand!