ICS 27.140 CCS K 55 备案号： 68965-2019 中华人民共和国电力行业标准 DL/T 2574—2022 混流式水轮机维护检修规程 Code of maintenance for Francis turbine 2022-11-04 发布 2023-05-04 实施 国家能源局 发 布 中华人民共和国 电力行业标准 混流式水轮机维护检修规程 DL/T 2574—2022 * 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 ） * 2023年4月第一版 2023年4月北京第一次印刷 880毫米× 1230毫米 16开本 1.25印张 43千字 * 统一书号 155198·4666 定 价28.00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 2574—2022 DL/T 2574—2022 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 检修项目与检修周期 ······························································ ······································· 2 4.1 检修项目 ······························································ ················································· 2 4.2 检修周期 ······························································ ················································· 7 5 检修工艺 ···················································································································· 7 5.1 工艺质量一般要求 ······························································ ····································· 7 5.2 蜗壳、尾水管检修 ······························································ ····································· 9 5.3 筒形阀检修 ······························································ ·············································· 9 5.4 导水机构检修 ······································································································· 10 5.5 导轴承检修 ·········································································································· 11 5.6 主轴密封检修 ······································································································· 11 5.7 转动部件检修 ······································································································· 12 5.8 附属设备检修 ······································································································· 13 6 水轮机总体回装 ········································································································· 14 7 检修启动试验 ············································································································ 16 7.1 一般要求 ············································································································· 16 7.2 启动试验项目 ······································································································· 16 7.3 验 收 ··················································································································· 18 DL/T 2574—2022 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。 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。 本文件由电力行业水轮发电机及电气设备标准化技术委员会（DL/TC 10 ）归口。 本文件起草单位：龙滩水电开发有限公司龙滩水力发电厂、中国长江电力股份有限公司、大唐岩滩 水力发电有限责任公司。 本文件主要起草人：吴祖平、刘丰、王鹏宇、农振昌、李平、向小峰、陈峰兵、张波涛、俸梅、 郑立理、李建豪、覃涛、邱涛、胡军、姬升阳、赵宗引。 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 2574—2022 1 混流式水轮机维护检修规程 1 范 围 本文件规定了混流式水轮机检修项目、检修周期、检修工艺、总体回装、启动试验及验收等技术要求。 本文件适用于功率为 10 MW及以上或转轮公称直径 1.0 m 及以上的混流式水轮机（以下简称“水轮机” ） 检修。 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 2900.45 电工术语 水电站水力机械设备 GB/T 7596 电厂运行中矿物涡轮机油质量 GB/T 8564 水轮发电机组安装技术规范 GB/T 11348.5 旋转机械转轴径向振动的测量和评定 第 5部分：水力发电厂和泵站机组 GB/T 15468 水轮机基本技术条件 GB/T 16938 紧固件 螺栓、螺钉、螺柱和螺母 通用技术条件 GB/T 28570 水轮发电机组状态