我厂改炼了辽河西部原油以来,由于该油酸值逐年增高,设备腐蚀日趋严重,特别是减压装置的机泵腐蚀尤为突出.由于机泵过流件各部配合尺寸要求严格,只要有微量的腐蚀就会使机泵过流件失效.因此,解决其腐.蚀问题是设备“安、稳、长”运行的关键问题.我厂于1990年在减压装置的机泵过流件上采用了非晶态Ni-P合金镀层方法防腐,并取得了较好的效果. Since the factory changed the western Liaohe crude oil, due to the oleic acid value increased year by year, equipment corrosion is becoming more serious, especially the pump unit of the decompression device is particularly prominent.As the pump overcurrent parts with strict size requirements, as long as a trace Of the corrosion will make the pump over-current parts failure.Therefore, to solve its rot corrosion problem is the equipment “safety, stability, long” operation of the key issues.I plant in 1990 in the decompression device pump overcurrent pieces The use of amorphous Ni-P alloy coating method of preservation, and achieved good results.