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柴油发电机组低负荷运行的危害

来源:http://www.huannengpower.com   发布于:2017-03-30

  柴油发电机组低负荷运行的危害

  若机组在低负荷下运行,随着运行时间的延续,会出现以下故障:

  If the unit under low load operation, as a continuation of the running time, can appear the following failures:

柴油发电机组

  1.活塞—汽缸套密封不好,机油上窜,进入燃烧室燃烧,排气冒蓝烟。

  1. The piston - cylinder liner seal is bad, the oil is up, burning into the combustion chamber, the exhaust blue smoke.

  2.对于增压式柴油机,由于低载、空载,增压压力低。容易导致增压器油封(非接触式)的密封效果下降,机油窜入增压室,随同进气进入汽缸。

  2. For a turbocharged diesel engine, due to low load and no-load, boost pressure is low. Easy to cause the supercharger oil seal (non-contact) sealing effect to drop, the oil into the pumping chamber, along with the air inlet into the cylinder.

  3.上窜至汽缸的一部分机油参与燃烧,一部分机油不能完全燃烧,在气门、进气道、活塞顶、活塞环等处形成积炭,还有一部分则随排气排出。这样,汽缸套排气道内就会逐步积聚机油,也会形成积炭。

  3. Up to the part of the cylinder oil burnt, part of the oil can't complete combustion, at the top of the valve, inlet, piston, piston ring, the place such as carbon deposit formation, and part with the exhaust. In this way, the cylinder jacket exhaust passage for oil will gradually accumulate, also can form carbon deposit.

  4.增压器的增压室内机油积聚到一定程度,就会从增压器的结合面处渗漏出。

  4. The supercharger turbo indoor oil accumulation to a certain degree, is seeping from the combination of the supercharger surface.

  5.长期小负荷运行,将会更严重的导致运动部件磨损加剧,发动机燃烧环境恶化等导致大修期提前的后果。

  5. Small load operation for a long time, will lead to the moving parts wear more serious, combustion engine overhaul period of early consequences such as environmental degradation.

  因此,柴油发电机组无论对自然吸气型还是增压机型的使用都应尽量减少低载/空载运行时间,并规定小负荷不能低于机组额定功率的25%—30%。

  Diesel generator set, therefore, no matter the naturally aspirated type or booster type use should minimize the low load/no-load running time, and the minimum load cannot be lower than 25% - 30% of the rated power unit.


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