低速柴油机气缸套和活塞环运行与维护

Operation and Maintenance of Cylinder Liner and Piston Ring of Low Speed Diesel Engine

针对某轮低速柴油机出现的气缸套/活塞环异常磨损故障,结合气缸套结构特点、运行要求等对故障原因进行排查分析。结果表明:此次缸套/活塞环异常磨损的主要原因为该轮使用了碱值严重不达标的劣质气缸润滑油;次要原因是空冷器的冷凝水泄放不畅。在此基础上提出低速柴油机各阶段运行维护注意事项。

Aiming at the abnormal wear of cylinder liner and piston ring in a marine low speed diesel engine,combined with the structural characteristics and operation requirements of cylinder liner,the fault causes were investigated and analyzed.The results show that:The main reason of the abnormal wear of cylinder liner and piston ring was the use of inferior cylinder lube oil with alkali value much higher than the standard;The secondary cause was that the condensate of the air cooler was not discharged smoothly.On this basis,the key points during each stage of operation and maintenance of low speed diesel engines are put forward.