摘要
舰船海水管路的腐蚀问题使管路壁厚大面积减薄,降低了管路的承压能力,导致海水管路漏泄或穿孔破损,可引发舰船动力装置、发电机组设备故障,威胁舰船的航行安全。文章针对舰船海水管路故障预测与健康管理问题,分析了舰船海水管路的主要腐蚀类型、机理、部位及其危害,比较了远场涡流检测法、漏磁通检测法、脉冲涡流检测法、超声波检测法4种常用的金属管路壁厚检测方法的优劣性,结合舰船海水管路的工作环境和腐蚀特点,提出利用超声波检测法检测腐蚀缺陷形貌、管壁厚度等信息,能够为舰船海水管路的健康管理提供可靠的数据,确保海水管路的可靠性和舰船设备的安全运行。
The corrosion problem of ship seawater pipeline reduces the thickness of the pipe wall in a large area,reduces the pressure bearing capacity of the pipeline,causes leakage or perforation of the sea water pipeline,leads to the failure of the ship＇s power plant and generator set,and threatens the navigation safety of the ship. Aiming at the problems of ship seawater pipeline fault prediction and health management,this paper analyzes the main corrosion types,mechanism,location and harm of marine seawater pipeline,and compares the far field eddy current detection method,leakage flux detection method and pulse eddy current detection method. The merits and demerits of four commonly used methods for detecting the wall thickness of metal pipes are discussed. Combined with the working environment and corrosion characteristics of marine seawater pipelines,the ultrasonic detection method is proposed to detect the appearance of corrosion defects and the thickness of pipe walls. It can provide reliable data for the health management of marine pipeline and ensure the reliability of sea water pipeline and the safe operation of ship equipment.
出处
《中国修船》
2018年第5期35-39,共5页
China Shiprepair
关键词
舰船海水管路
管道腐蚀状态
超声波检测
ship seawater pipeline
state of pipeline corrosion
ultrasonic testing
