超设计寿命压力容器定期检验规范（送审稿）

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4.附件 ICS号

中国标准文献分类号

团 体 标 准

团体标准编号 代替的团体标准编号

超设计使用年限压力容器定期检验规范

Periodical Inspection specification of Pressure Vessel

Serviced Out of Design Working Life

I

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xxxx-xx-xx发布 xxxx-xx-xx实施

中国特种设备检验协会 发布

目 次

前 言 ............................................................................................................................................ VI 1 范围 ................................................................................................................................................ 1 2 规范性引用文件 .............................................................................................................................. 1 3 术语和符号 ..................................................................................................................................... 2 4 通用要求 ......................................................................................................................................... 2 4.1 检验原则 .................................................................................................................................. 2 4.2 检验程序 .................................................................................................................................. 2 4.3 检验机构及人员 ....................................................................................................................... 2 4.4 报检 ......................................................................................................................................... 3 4.5 安全状况等级........................................................................................................................... 3 4.6 检验周期 .................................................................................................................................. 3 4.7 检验周期的特殊规定 ................................................................................................................ 3 5 检验前的准备工作 .......................................................................................................................... 4 5.1 损伤机理识别........................................................................................................................... 4

II

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5.2 风险评估 .................................................................................................................................. 4 5.3 其他要求 .................................................................................................................................. 4 6 检验项目与检测方法 ...................................................................................................................... 5 6.1 腐蚀减薄 .................................................................................................................................. 5 6.2 环境开裂、机械损伤 ................................................................................................................ 6 6.3 材质劣化 .................................................................................................................................. 6 6.3.1 球化 ...................................................................................................................................... 6 6.3.2 石墨化 .................................................................................................................................. 6 6.3.3 σ相脆化 ................................................................................................................................ 7 6.3.4 475℃脆化 ............................................................................................................................. 7 6.3.5回火脆化 ................................................................................................................................ 7 6.3.6低温脆断 ................................................................................................................................ 7 6.3.7蠕变 .........................................................................................................错误！未定义书签。 7 安全状况等级评定 .......................................................................................................................... 7 7.1 评定原则 .................................................................................................................................. 7 7.2 材料问题 .................................................................................................................................. 8 7.3 结构问题 .................................................................................................................................. 8 7.4 表面裂纹及凹坑 ....................................................................................................................... 8

III

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7.5 变形、机械接触损伤、工卡具焊迹及电弧灼伤 ....................................................................... 8 7.6 咬边 ......................................................................................................................................... 9 7.7 腐蚀 ......................................................................................................................................... 9 7.8 环境开裂和机械损伤 ................................................................................................................ 9 7.9 错边量和棱角度 ..................................................................................................................... 10 7.10 焊缝埋藏缺陷 ...................................................................................................................... 10 7.11 母材分层 .............................................................................................................................. 12 7.12 鼓包 ..................................................................................................................................... 12 7.13 绝热性能 .............................................................................................................................. 12 7.14 耐压试验 .............................................................................................................................. 13 7.15 声发射检测 .......................................................................................................................... 13 8 结论及报告 ................................................................................................................................... 13 8.1 检验结论 ................................................................................................................................ 13 8.2 检验报告 ................................................................................................................................ 13 8.3 检验信息管理......................................................................................................................... 14 8.4 检验案例 ................................................................................................................................ 14 8.5 检验标志 ................................................................................................................................ 14

IV