压力容器
壓力容器
압력용기
Pressure Vessel Technology
2015年
9期
59-65
,共7页
压力管道%焊接缺陷%修复方法%全尺寸爆破试验%碳纤维复合材料
壓力管道%銲接缺陷%脩複方法%全呎吋爆破試驗%碳纖維複閤材料
압력관도%한접결함%수복방법%전척촌폭파시험%탄섬유복합재료
pressure pipeline%welding defects%repair methods%full-scale burst test%carbon fiber composite
压力管道在制造安装运行期间，不可避免形成各种类型的缺陷，如非扩展型表面裂纹、机械划伤、凹陷等。在无法停输的情况下，采用补强技术修复此类非扩展型缺陷是一种行之有效的方法。为了测试复合材料缠绕修复管道焊接处机械损伤缺陷的效果，进行了全尺寸爆破试验，利用试验和有限元模拟方法研究了修复后管道的承压能力，分析了影响修复效果的各种因素。研究结果得出：复合材料修复技术能非常有效地修复管道机械损伤缺陷，修复后管道可以基本恢复承压能力，修复效果与实际工程管道缺陷类型、缺陷尺寸、缺陷位置以及现场修复条件等有紧密关系。
壓力管道在製造安裝運行期間，不可避免形成各種類型的缺陷，如非擴展型錶麵裂紋、機械劃傷、凹陷等。在無法停輸的情況下，採用補彊技術脩複此類非擴展型缺陷是一種行之有效的方法。為瞭測試複閤材料纏繞脩複管道銲接處機械損傷缺陷的效果，進行瞭全呎吋爆破試驗，利用試驗和有限元模擬方法研究瞭脩複後管道的承壓能力，分析瞭影響脩複效果的各種因素。研究結果得齣：複閤材料脩複技術能非常有效地脩複管道機械損傷缺陷，脩複後管道可以基本恢複承壓能力，脩複效果與實際工程管道缺陷類型、缺陷呎吋、缺陷位置以及現場脩複條件等有緊密關繫。
압력관도재제조안장운행기간，불가피면형성각충류형적결함，여비확전형표면렬문、궤계화상、요함등。재무법정수적정황하，채용보강기술수복차류비확전형결함시일충행지유효적방법。위료측시복합재료전요수복관도한접처궤계손상결함적효과，진행료전척촌폭파시험，이용시험화유한원모의방법연구료수복후관도적승압능력，분석료영향수복효과적각충인소。연구결과득출：복합재료수복기술능비상유효지수복관도궤계손상결함，수복후관도가이기본회복승압능력，수복효과여실제공정관도결함류형、결함척촌、결함위치이급현장수복조건등유긴밀관계。
Various types of defects are formed inevitably in pressure pipelines service,such as non-exten-ding surface cracks during the welding process,mechanical scratches,dents,etc.,the use of reinforcement technique to repair these non-extended defects is an effective method in the pipeline cannot shutdown condition.In order to test the reinforcing effect of mechanical damage defects repaired by winding compos-ites,full-scale burst tests were carried out to study the pressure-bearing capacity of repaired pipeline in combination with the finite element simulation method,and the various factors to influence repair effect were analyzed.The results indicated that the composite reinforcement method can effectively repair pipe-line mechanical damage defects,in which the bearing ability can be recovered after the repair,the repair effect is closely associated with the actual defect type,defect size,defect location and repair conditions.
