中华人民共和国 电力行业标准 高压直流输电换流阀冷却系统 化学监督导则 DL / T 2121 — 2020 * 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 ） * 2021年4月第一版 2021年4月北京第一次印刷 880毫米×1230 毫米 16开本 0.75印张 22千字 * 统一书号 155198·2666 定价15.00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 2121 — 2020 ICS 29.240.10 CCS F 23 备案号： 68965-2019 中华人民共和国电力行业标准 DL / T 2121 — 2020 高压直流输电换流阀冷却系统 化学监督导则 Directive of chemical supervisio n for HVDC valve cooling system 2020-10-23 发布 2021-02-01 实施 国家能源局 发 布 XM84539 责编：贾丹丹 成品： 210*297 责校：李楠 版心： 166*238 字数： 45*43行 天35 地 24 订 24 切 20 描图： 0 DL / T 2121 — 2020 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 设计阶段 ······························································································································· ······················· 2 6 采购阶段 ······························································································································· ······················· 3 7 制造阶段 ······························································································································· ······················· 3 8 到货验收 ······························································································································· ······················· 3 9 安装阶段 ······························································································································· ······················· 3 10 调试阶段 ······························································································································· ····················· 4 11 竣工验收阶段 ······························································································································· ············· 4 12 运行阶段 ······························································································································· ····················· 4 13 检修阶段 ······························································································································· ····················· 5 附录 A（资料性） 洁净度等级 ······················································································································· 7 DL / T 2121 — 2020 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。 本文件由中国电力企业联合会提出。 本文件由电力行业电厂化学标准化技术委员会（ DL/TC 13 ）归口并解释。 本文件起草单位：国网陕西省电力公司电力科学研究院、国网陕西省电力公司、国网湖北省电力 有限公司电力科学研究院、国网江西省电力有限公司电力科学研究院、国网新疆电力有限公司电力科学研究院、国网湖南省电力公司电力科学研究院、国网天津市电力公司电力科学研究院、国网陕西省电力公司检修公司、国网浙江省电力公司电力科学研究院、国网四川省电力公司电力科学研究院、中国能源建设集团广东省电力设计研究院有限公司、漂莱特（中国）有限公司、云南电网有限责任公司电力科学研究院、国网上海市电力公司电力科学研究院。 本文件主要起草人：丁德、吴健、白晓春、吕平海、吴跃伟、赵勤虎、郭安祥、詹约章、李海燕、 陈刚、裴锋、于金山、徐松、谷永刚、胡家元、薛军、刘欣、赵鹏、赵军、李少杰、魏浩坤、 李晓霞、 刘磊、菅永锋、孙海涛、王志高、邓先钦、鱼小兵、扶廷喜、姜丹、郭新良。 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）。 DL / T 2121 — 2020 1 高压直流输电换流阀冷却系统化学监督导则 1 范 围 本文件规定了高压直流输电换流阀冷却系统全过程化学监督的技术要求。 本文件适用于高压直流输电换流阀冷却系统的化学监督。 2 规范性引用文件 下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文 件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于本文件。 GB/T 6907 锅炉用水