舰船海水管路腐蚀状态检测方法研究
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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.
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.
引文
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[15]谢子阳,李海军,何文坤,等.测厚技术研究进展及其在疏浚钢管中的应用[J].机械制造,2017,55(4):68-71.
[2]杨光付,裘达夫,潘金杰,等.舰船海水管系腐蚀风险分析与综合评估方法[J].中国舰船研究,2017,12(3):142-148.
[3]许骥.舰船海水管系的腐蚀与防护[J].现代制造技术与装备,2015,(5):61-64.
[4]王广夫.舰船海水管路系统防腐防污技术进展[J].材料开发与应用,2016,31(4):108-112.
[5]孔祥峰,张婧,姜源庆,等.船舶防腐蚀技术应用及研究进展[J].全面腐蚀控制,2014,28(10):51,67.
[6]涂政,黄加强.舰船腐蚀防护存在的问题及建议[J].船海工程,2012,41(4):79-80,84.
[7]黎理胜,许文珊,陈万宏,等.钛合金在铝合金舰船海水管路系统的应用[J].船舶,2016,27(3):27-33.
[8]付西光,颜国正,左建勇,等.漏磁法智能管路壁厚检测系统的研究[J].仪器仪表学报,2004,25(6):799-801.
[9]王建,傅迎光,孙明璇,等.基于脉冲涡流检测技术的铁磁性材料厚度的测量[J].北京交通大学学报,2012,36(6):133-136.
[10]范嘉坤,罗晓兰,李博,等.腐蚀立管的检测方法及剩余强度评价[J].无损检测,2015,37(1):33-37.
[11]涂君.钢管自动化电磁超声测厚方法研究[D].武汉:华中科技大学,2014.
[12]黄胜清.超声波测厚技术的应用[J].化工管理,2015,(9):47-48.
[13]生利英.超声波检测技术[M].北京:化学工业出版社,2014.
[14]陈杰,黄小美,龚智力.超声波测厚技术在天然气集输管网弯头部位壁厚抽检中的应用[J].化学工程与装备,2015(9):195-197.
[15]谢子阳,李海军,何文坤,等.测厚技术研究进展及其在疏浚钢管中的应用[J].机械制造,2017,55(4):68-71.