ICS27.100 F22 备案号：40040-2013 中华人民共和国电力行业标准 DL/T1214—2013 9FA燃气—蒸汽联合循环机组维修规程 Maintenanceandrepairspecificationfor9FAgasturbineand steamturbinecombinedcycleunit 2013-03-07发布 2013-08-01实施 国家能源局 发布  DL/T1214—2013 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·········································2 59FA燃气轮机的检修··································2 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 检修间隔······································2 检修范围······································2 检修计划编制原则···································4 9FA燃气轮机的检修方法································5 9FA燃气轮机本体检修·································7 消防灭火系统（二氧化碳模块）检修···························11 油系统检修·····································11 防冰系统检修····································11 6蒸汽轮机本体检修··································11 6.1 6.2 检修范围······································11 A级检修工艺要求··································12 7燃料系统的检修···································15 7.1 7.2 7.3 天然气调压站检修··································15 天然气前置模块检修·································16 燃气模块系统检修··································16 8电气系统检修····································17 8.1 8.2 8.3 8.4 发电机检修·····································17 变压器检修·····································24 电气系统相关的继电保护试验······························24 电力设备交接和预防性试验·······························24 9余热锅炉的检修···································24 9.1 9.2 9.3 余热锅炉汽包检修··································24 余热锅炉模块检修··································24 烟囱挡板检修····································25 109FA燃机控制系统的检修·······························25 10.1 10.2 10.3 燃机MarkⅥ控制系统检修······························ 25 DCS分散控制系统检修································27 危险气体监视测量传感器的检修····························27 I  DL/T1214—2013 前 言 本标准按照GB/T1.1—2009的规则起草。 本标准由中国电力企业联合会提出。 本标准由电力行业联合循环发电标准化技术委员会归口。 本标准起草单位：中国华电集团公司望亭发电厂。 本标准主要起草人：朱卫凤、林伟、徐国飚、杨炜、郁建国、李跃、郑孝卿、虞卫根、章文贤、 陈卫东、张宏、曹晓晖。 本标准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）。 II  DL/T1214—2013 9FA燃气—蒸汽联合循环机组维修规程 1范围 本标准规定了9FA燃气—蒸汽联合循环机组维修的基本要求。 本标准适用于以天然气为燃料的9FA燃气—蒸汽联合循环机组的维修。 2规范性引用文件 下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件，仅注日期的版本适用于本文 件。凡是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/T15135燃气轮机词汇 DL/T573电力变压器检修导则 DL/T596电力设备预防性试验规程 DL/T735大型汽轮发电机定子绕组端部动态特性的测量及评定 DL/T838发电企业设备检修导则 DL/T995继电保护和电网安全自动装置检验规程 3术语和定义 GB/T15135中界定的以及下列术语和定义适用于本文件。 3.1 热通道hotgaspath 从燃料喷嘴开始到透平末级动叶为止，包括燃烧系统的燃料喷嘴、火焰筒、过渡段及其附件，燃 气轮机透平的一、二、三级动静叶片及其附件。 3.2 透平排气框架turbineexhaustframe 用螺栓固定于燃气轮机透平缸后，由外缸和有辐向结构的内缸构成，内缸支撑着燃气轮机的2号轴 承。透平排气框架内部一般有冷却气体的通道。 3.3 燃烧器combustion 燃烧器是燃气轮机的三大部件之一，其作用是将来自压气机的高压空气与燃料喷嘴喷入的燃料混 合并经过燃烧，再将燃烧产物与其余的高压空气混合，形成均匀一致的高温高压燃气后送往燃机透平 做功。9FA燃气轮机的燃烧系统是