承壓部件無損檢測方法與應用研究
發(fā)布時間:2018-10-19 08:34
【摘要】:特種設備的運行隨時面對著高溫、高壓、易爆、易燃、劇毒和腐蝕的影響,極易發(fā)生危害嚴重的各類事故,一直以來防止此類事故的發(fā)生都是業(yè)內人士的難題。課題采用無損檢測技術對特種設備承壓部件失效機理進行分析,提出預防以及延壽方案,保障特種設備安全經濟運行,具有重要的工程意義。以工業(yè)鍋爐、壓力容器、壓力管道等承壓部件為研究對象,采用理論分析、案例分析和數(shù)值模擬的方法,對無損檢測在承壓部件檢測中的應用進行研究。首先對各類承壓部件的失效機理特性進行歸納,針對不同現(xiàn)場環(huán)境和各種無損檢測方法的使用性能,選取最適合的檢測方法;其次,針對典型鍋爐、壓力容器和壓力管道的常見事故案例進行診斷分析,并將現(xiàn)場處理后的數(shù)據(jù)與理論研究結果進行對比,尋找對失效事故發(fā)生預測的突破口;最后,應用無損檢測方法為失效事故的預測提供理論依據(jù),并以無損檢測方法為主導對已失效或即將失效的承壓部件進行監(jiān)測以達到延壽的目的。無損檢測作為檢驗及預防承壓部件失效事故的關鍵技術,其研究結果對承壓部件的檢驗檢測方法的選擇提供參考,為承壓部件失效事故預防提供理論依據(jù)。
[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.
【學位授予單位】:華北理工大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TG115.28
本文編號: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.
【學位授予單位】:華北理工大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TG115.28
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