ICS 29.160.20 K 21 备案号：68965-2019 中华人民共和国电力行业标准 DL/T 1766.4—2021 水氢氢冷汽轮发电机检修导则 第4部分：氢气冷却系统检修 Guideline for maintenance of water-hy drogen-hydrogen cooled turbo generator — Part 4: Hydrogen cooling system 2021-12-22 发布 2022-03-22 实施 国家能源局 发 布 《电子编加稿件》 XM90346 责编：刘亚楠 成品：210*297 责校： 版心：166*238 字数：45*43 行 天35 地 24 订 24 切 20 描图：1 张 ÇzrHg,0N PZOcn 中华人民共和国 电力行业标准 水氢氢冷汽轮发电机检修导则 第4部分：氢气冷却系统检修 DL/T 1766.4—2021 * 中国电力出版社出版、印刷、发行 （北京市东城区北京站西街 19号 100005 http://www.cepp.sgcc.com.cn ） * 2022年 月第一版 2022年 月北京第一次印刷 880毫米×1230 毫米 16开 本 印 张 千 字 * 统一书号 155198·3851 定价0.00元 版 权 专 有 侵 权 必 究 本书如有印装质量问题，我社营销中心负责退换 DL/T 1766.4—2021 ÇzrHg,0N PZOcnDL/T 1766.4—2021 I 目 次 前言 ··································································································································································· II 1 范 围 ······························································································································· ······························· 1 2 规范性引用文件 ······························································································································· ··········· 1 3 术语和定义 ······························································································································· ··················· 1 4 总 则 ······························································································································· ······························· 1 5 氢气置换 ······························································································································· ······················· 2 6 发电机本体 ······························································································································· ··················· 2 7 氢气管路 ······························································································································· ······················· 2 8 氢气冷却器 ······························································································································· ··················· 2 9 氢气干燥器 ······························································································································· ··················· 2 10 监测设备 ······························································································································· ····················· 3 11 检修中的试验 ······························································································································· ············· 3 附录 A （规范性） 各级检修所对应的检修项目 ··························································································· 4 附录 B （资料性） 发电机氢系统简图 ··········································································································· 6 参考文献 ······························································································································· ····························· 7 ÇzrHg,0N PZOcnDL/T 1766.4—2021 II 前 言 本文件按照 GB/T 1.1 —2020《标准化工作导则 第 1 部分：标准化文件的结构和起草规则》的规 定起草。 本文件是 DL/T 1766 《水氢氢冷汽轮发电机检修导则》的第 4部分。DL/T 1766 已经发布了以下 部分： ——第 1部分：总则； ——第 2部分：定子检修； ——第 3部分：转子检修； ——第 4部分：氢气冷却系统检修； ——第 5部分：内冷水系统检修。 请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。 本文件由中国电力企业联合会提出。 本文件由电力行业电机标准化技术委员会（DL/TC 09 ）归口。 本文件起草单位：中国大唐集团科学技术研究院有限公司火力发电技术研究院、大唐国际发电股 份有限公司陡河发电厂、上海电气电站设备有限公司、哈尔滨电机厂有限责任公司、中国东方电气集团东方电机有限公司、华北电力科学研究院有限责任公司、内蒙古大唐国际托克托发电有限责任公司、大唐国际发电股份有限公司、华电电力科学研究院有限公司东北分公司、润电能源科学技术有限公司、中国大唐集团科学技术研究院有限公司华东电力试验研究院。 本文件主要起草人：王劲松、张智超、杨海超、王建东、郭进钊、阮绵照、吴庆军、曹凤波、 苏振、王丽娟、白亚民、雷雨、孙士涛、张杰、李盛、邹建红、崔志刚、王健军、岳啸鸣、盛明珺、金辰、刘柏延。 本文件为首次发布。 本文件在执行过程中的意见或建议反馈至中国电力企业联合会标准化管理中心（北京市白广路二 条一号，100761 ） 。 ÇzrHg,0N PZOcnDL/T 1766.4—2021 1 水氢氢冷汽轮发电机检修导则 第4部分：氢气冷却系统检修 1 范 围 本文件规定了水氢氢冷汽轮发电机氢气冷却系统检