ICS 27.040 F 23 备案号： 63143-2018 中华人民共和国电力行业标准 DL / T 2025.1 — 2019 电站阀门检修导则 第1部分：总则 Guide of the Maintenance for Power Plant Valve - Part 1: General Provisions 2019-06-04 发布 2019-10-01 实施 国家能源局 发 布 DL / T 2025.1 — 2019 I目 次 前言 ............................................................................................................................... ...................................I 1 范围 ............................................................................................................................... .............................. 1 2 规范性引用文件 ............................................................................................................................... .......... 1 3 术语和定义 ............................................................................................................................... .................. 1 4 检修间隔与范围 ............................................................................................................................... .......... 2 5 阀门检修流程 ............................................................................................................................... .............. 2 6 检修准备 ............................................................................................................................... ...................... 3 6.1 一般要求 ............................................................................................................................... ........... 3 6.2 施工单位要求 ............................................................................................................................... ... 3 6.3 人员要求 ............................................................................................................................... ........... 3 6.4 安全要求 ............................................................................................................................... ........... 4 6.5 场地要求 ............................................................................................................................... ........... 4 6.6 工器具和检测器具的要求 .............................................................................................................. 4 6.7 阀门检修条件 ............................................................................................................................... ... 5 7 检修工艺要求 ............................................................................................................................... .............. 5 7.1 表面修磨 ............................................................................................................................... ........... 5 7.2 密封面研磨 ............................................................................................................................... ....... 7 7.3 焊补 ............................................................................................................................... ................... 9 8 阀门更换 ............................................................................................................................... .................... 11 8.1 阀门更换原则 ............................................................................................................................... . 11 8.2 零部件更换 ............................................................................................................................... ..... 11 8.3 驱动装置更换原则 ........................................................................................................................ 11 8.4 新阀门的检查 ............................................................................................................................... . 11 8.5 阀门安装 ............................................................................................................................... ......... 12 9 阀门调试 .....................................