LNG接收站海水泵检修维护实践与思考  

Practice and discussion on maintenance of seawater pump at LNG terminal

作　　者：王政银 刘红强 王俊晓 WANG Zhengyin;LIU Hongqiang;WANG Junxiao(PipeChina Yuedong LNG Co.Ltd.)

机构地区：[1]国家管网集团粤东液化天然气有限责任公司

出　　处：《油气储运》2024年第7期827-832,共6页Oil & Gas Storage and Transportation

摘　　要：【目的】海水泵作为LNG接收站的核心设备之一,其正常运行对LNG接收站安全高效生产至关重要,而对海水泵科学实施检修维护有助于提升其运行的安全性、稳定性、高效性及服役寿命。【方法】基于海水泵基本结构与工作原理,系统梳理了海水泵检修维护要点,包括外观、冷却系统、轴封与轴承、叶轮与泵壳、电机与电气系统、润滑系统等检修维护的主要目的、基本流程及操作方法,尤其对轴封与润滑系统的检修维护进行了详细阐述。【结果】在生产实践中严格落实上述检修维护流程与方法,可以有效保障海水泵安全高效运行,但在极端海洋环境影响及新技术、新材料发展推动下,海水泵在工程应用中仍然面临严峻挑战,需要采取切实有效的应对措施,持续提升海水泵检修维护效率与水平。【结论】建议研发新型防腐涂层材料与有效的生物附着控制方法,以提高海水泵的耐腐蚀性能与抗生物污染能力;利用物联网(Internetof Things,IoT)技术,将传感器、数据分析、云计算等智能技术集成到海水泵维护检修流程中,实现实时监控与预警;根据不同工况与使用环境,开发个性化海水泵检修与保养策略,使检修维护更加精准有效;定期对检修维护人员进行新技术、新方法培训,增强其对海水泵最新维护技术的掌握与应用能力。[Objective]Seawater pumps serve as one of the core equipment at LNG terminals,and their normal operation is crucial to the safe and efficient production of these facilities.Proper overhaul and maintenance of these pumps are essential to enhance their safety,stability,efficiency,and longevity.[Methods]This paper systematically summarizes the overhaul and maintenance essentials for seawater pumps,taking into account their foundational structure and operational principles.It delves into different components including visual appearance,the cooling system,shaft seal and bearing,impeller and pump casing,motor and electrical system,and the lubrication system.These components are discussed from the perspectives of main purposes,basic procedures,and operational techniques for overhaul and maintenance.Special focus is directed towards elucidating the overhaul and maintenance of the shaft seal and lubrication system in these pumps.[Results]Rigorous adherence to the outlined overhaul and maintenance procedures and techniques can effectively ensure the safe and efficient functioning of seawater pumps in practical production scenarios.Despite this,the environmental impacts under extreme marine conditions and advancements in new technologies and materials still present significant hurdles for the engineering applications of seawater pumps.Consequently,it is imperative to take practical and efficient countermeasures to continually enhance the overhaul and maintenance efficiency and effectiveness of seawater pumps.[Conclusion]The study concludes with several key recommendations.It suggests prioritizing further research and development towards innovative anti-corrosive coating materials and effective biological adhesion control methods to enhance the corrosion and biological pollution resistance of seawater pumps.Incorporating intelligent technologies such as sensors,data analysis,and cloud computing via the Internet of Things(loT)into overhaul and maintenance procedures can enable realtime monitoring and alerts.Customized overhau

关 键 词：海水泵 检修 关键技术 注意事项 

分 类 号：TE82[石油与天然气工程—油气储运工程]