含未焊透缺陷在用压力管道安全评定

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英文篇名：Safety Assessment of In-service Pressure Piping with Defect of Lack-of-penetration Weld 作者：沈峰 ; 黄懿 英文作者：Shen Feng;Huang Yi;Taicang Branch, Special Equipment Safety Supervision Inspection Institute of Jiangsu Province; 关键词：压力管道 ; 未焊透缺陷 ; 应力分析 ; 安全评定 英文关键词：pressure piping;;defeat of un-penetration in weld;;stress analysis;;safety assessment 中文刊名：HGSB 英文刊名：Process Equipment & Piping 机构：江苏省特种设备安全监督检验研究院太仓分院; 出版日期：2018-04-15 出版单位：化工设备与管道 年：2018 期：v.55;No.305 语种：中文; 页：HGSB201802017 页数：3 CN：02 ISSN：31-1833/TQ 分类号：75-77

摘要

在按照《在用工业管道定期检验规程》(试行)进行全面检验的某工厂压力管道发现安全状况等级评定为4级的未焊透超标缺陷。运用CAESARⅡ管道应力分析软件对该压力管道进行应力分析,确定缺陷部位的最大应力。在应力分析的基础上,按照GB/T 19624-2004《在用含缺陷压力容器安全评定》对超标缺陷进行安全评定。经评定,该压力管道在超标缺陷存在的情况下可继续使用。
        In assessment for the pressure piping in one factory in accordance with "Regulation for Periodical inspection of Inservice Industrial Piping", the un-penetration in weld, which in classified as class 4 of unsafe grade, was found. In this article,by using software CAECAR Ⅱ, the analysis of stresses in the piping was performed. The maximum stress in defect position was determined, and then for this imperfection in weld was assessed in safety. From the result of the assessment and based on GB/T19624-2004, it was concluded that this piping can be continuously used with existed weld defect.

引文

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    [5]GB/T 19624-2004,在用含缺陷压力容器安全评定[S].