有時候會發(fā)現(xiàn)這樣的情況:自動上料攪拌車的排氣帶藍(lán)煙,并且排氣管滴油。下面為大家講解一下原因。
Sometimes it can be found that there is blue smoke in the exhaust of the automatic feeding mixer, and the exhaust pipe drips oil. Here's why.
若機油大量地竄入燃燒室并被汽化,排氣便帶藍(lán)煙。藍(lán)煙實際上是機油蒸汽的再凝結(jié)。有時,柴油機在冷起動或低負(fù)荷時冒藍(lán)煙,但暖車或負(fù)荷增大后便消失,這往往是由于機油蒸汽被燒掉,當(dāng)燒的不完全還會冒黑煙。
If a large amount of oil into the combustion chamber and vaporized, exhaust with blue smoke. Blue smoke is actually recondensation of oil vapor. Sometimes, the diesel engine gives off blue smoke during cold start or low load, but disappears after warm-up or load increase. This is often due to the oil vapor being burned off, and black smoke will be emitted when the combustion is not complete.
自動上料攪拌車
Automatic feeding mixer
竄機油冒藍(lán)煙的后果,是機油消耗量迅速上升,并產(chǎn)生大量的積炭和其它燃燒產(chǎn)物,使噴油器、活塞環(huán)的工作性能變壞,加速活塞環(huán)、氣缸套等零件的磨損,應(yīng)盡量避免。
The result of blue smoke from oil channeling is that the consumption of engine oil increases rapidly, and a large amount of carbon deposit and other combustion products are produced, which makes the working performance of fuel injector and piston ring worse, and accelerates the wear of piston ring and cylinder liner, which should be avoided as far as possible.
1.帶有倒角的活塞環(huán)或扭曲環(huán)將方向裝錯,反而將機油泵(混泥土攪拌車)入燃燒室。
1. The piston ring or twisted ring with chamfer will be installed in the wrong direction, instead, the oil pump (concrete mixer) will be put into the combustion chamber.
2.柴油機長期在低負(fù)荷下工作(負(fù)荷小于30~50%),氣缸內(nèi)壓力低。
Under low load for a long time, the working pressure of diesel engine is less than 2.50% under low load.
3.磨合不良。試驗表明,新的或大修后的柴油機一般需磨合30~40小時才能達(dá)到良好的技術(shù)狀況。未經(jīng)良好磨合而直接帶正常負(fù)荷工作是冒藍(lán)煙的常見原因。
3. Poor running in. The test shows that the new or overhauled diesel engine generally needs to run in for 30-40 hours to reach a good technical condition. It is a common reason for blue smoke to work directly with normal load without good running in.
4.活塞環(huán)、氣缸套內(nèi)表面光潔度、橢圓度、錐度及配合間隙不符合要求,或由于連桿彎曲、主軸孔與氣缸套不垂直而使活塞偏磨,也引起竄油冒藍(lán)煙。
4. The internal surface finish, ovality, taper and fit clearance of piston ring and cylinder liner do not meet the requirements, or the piston is eccentric worn due to the bending of connecting rod, and the main shaft hole is not vertical to the cylinder liner, which also causes oil leakage and blue smoke.
5.油底殼內(nèi)機油過多,機油壓力過高,粘度太小,活塞環(huán)磨損及失去彈性或活塞與氣缸套間隙過大,油浴式空氣濾清器的油盤內(nèi)加油過多等等。
5. There is too much oil in the oil pan, the oil pressure is too high, the viscosity is too small, the piston ring is worn and lost elasticity, or the clearance between the piston and the cylinder liner is too large, the oil pan of the oil bath air filter is overfilled, etc.
以上就會說自上料攪拌車所述的內(nèi)容,是我們的小編精心為大家準(zhǔn)備的,這些或許都有些不的地方,我們會在以后的文章中為大家一一說明。
The above will say that the content described in the charging mixer is carefully prepared for you by our editor. These may be incomplete, and we will explain them one by one in future articles.