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对近年来彩南增压站DPC-2800系列压缩机出现的动力缸缸盖裂纹和缸壁镀层剥落现象进行了分析,结果表明:过大的热负荷、敲缸和爆燃是导致动力缸损伤的3个直接原因。机组在高负荷工况下,为保证动力缸的平稳运行,应及时排除单缸火花塞不正常点火和动力缸负荷分布不均等故障。分析了动力缸出现过多积炭的原因,并从润滑油的选择,注油量的调整,刮油盘根和空气滤芯压差的检查等方面提出了预防措施,确保设备安全运行。
In the recent years, DPC-2800 series compressor at Caenan Booster Station appeared crack of cylinder heads and flaking phenomenon of cylinder wall coating. The results showed that excessive heat load, knocking and deflagration caused the cylinder damage 3 direct reasons. Under high load conditions, in order to ensure the smooth operation of the power cylinder, abnormal ignition of the single-cylinder spark plug and unequal load distribution of the power cylinder should be eliminated in time. The reasons for excessive coke accumulation in the power cylinder are analyzed. Preventive measures are put forward from the aspects of lubricating oil selection, oil quantity adjustment, oil scraper packing and air filter pressure difference checking to ensure the safe operation of the equipment.