承压部件无损检测方法与应用研究
发布时间：2018-10-19 08:34
【摘要】：特种设备的运行随时面对着高温、高压、易爆、易燃、剧毒和腐蚀的影响,极易发生危害严重的各类事故,一直以来防止此类事故的发生都是业内人士的难题。课题采用无损检测技术对特种设备承压部件失效机理进行分析,提出预防以及延寿方案,保障特种设备安全经济运行,具有重要的工程意义。以工业锅炉、压力容器、压力管道等承压部件为研究对象,采用理论分析、案例分析和数值模拟的方法,对无损检测在承压部件检测中的应用进行研究。首先对各类承压部件的失效机理特性进行归纳,针对不同现场环境和各种无损检测方法的使用性能,选取最适合的检测方法;其次,针对典型锅炉、压力容器和压力管道的常见事故案例进行诊断分析,并将现场处理后的数据与理论研究结果进行对比,寻找对失效事故发生预测的突破口;最后,应用无损检测方法为失效事故的预测提供理论依据,并以无损检测方法为主导对已失效或即将失效的承压部件进行监测以达到延寿的目的。无损检测作为检验及预防承压部件失效事故的关键技术,其研究结果对承压部件的检验检测方法的选择提供参考,为承压部件失效事故预防提供理论依据。
[Abstract]:The operation of special equipment is always faced with the influence of high temperature, high pressure, explosive, flammable, highly toxic and corrosive. Non-destructive testing technology is used to analyze the failure mechanism of pressure bearing parts of special equipment. It is of great engineering significance to put forward the scheme of prevention and extension of life to ensure the safe and economical operation of special equipment. The application of nondestructive testing (NDT) in the detection of confined parts is studied by means of theoretical analysis case analysis and numerical simulation taking the pressure components such as industrial boilers pressure vessels and pressure pipes as research objects. First of all, the failure mechanism characteristics of various pressure components are summarized, and the most suitable testing methods are selected for different site environment and various nondestructive testing methods; secondly, for typical boilers, The common accident cases of pressure vessel and pressure pipeline are diagnosed and analyzed, and the data processed in the field are compared with the theoretical research results to find a breakthrough to predict the failure accident. Non-destructive testing (NDT) is used to provide theoretical basis for the prediction of failure accidents, and NDT is the dominant method to monitor the failure or impending failure of pressure-bearing components to achieve the purpose of life extension. Non-destructive testing (NDT) is the key technology for testing and preventing failure accidents of confined components. The research results provide a reference for the selection of inspection and detection methods of pressure-bearing components and provide theoretical basis for the prevention of failure accidents of pressure-bearing components.
【学位授予单位】：华北理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG115.28
本文编号：2280641
[Abstract]:The operation of special equipment is always faced with the influence of high temperature, high pressure, explosive, flammable, highly toxic and corrosive. Non-destructive testing technology is used to analyze the failure mechanism of pressure bearing parts of special equipment. It is of great engineering significance to put forward the scheme of prevention and extension of life to ensure the safe and economical operation of special equipment. The application of nondestructive testing (NDT) in the detection of confined parts is studied by means of theoretical analysis case analysis and numerical simulation taking the pressure components such as industrial boilers pressure vessels and pressure pipes as research objects. First of all, the failure mechanism characteristics of various pressure components are summarized, and the most suitable testing methods are selected for different site environment and various nondestructive testing methods; secondly, for typical boilers, The common accident cases of pressure vessel and pressure pipeline are diagnosed and analyzed, and the data processed in the field are compared with the theoretical research results to find a breakthrough to predict the failure accident. Non-destructive testing (NDT) is used to provide theoretical basis for the prediction of failure accidents, and NDT is the dominant method to monitor the failure or impending failure of pressure-bearing components to achieve the purpose of life extension. Non-destructive testing (NDT) is the key technology for testing and preventing failure accidents of confined components. The research results provide a reference for the selection of inspection and detection methods of pressure-bearing components and provide theoretical basis for the prevention of failure accidents of pressure-bearing components.
【学位授予单位】：华北理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG115.28
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