火电厂烟气脱硫吸收塔施工及验收规程.doc

ICS 号中国标准文献分类号备案号:DL/T****—2008火电厂烟气脱硫吸收塔施工及验收规程Code for construction and acceptance of flue gas desulphurization absorber of thermal power plant（ - - ） 发布 （ - - ） 实施中华人民共和国国家发展和改革委员会 发布 DL/T ***---2008I目 次前 言 ......................................................................III1 范 围 .......................................................................12 规范性引用文件 ..............................................................13 术 语 .......................................................................24 总 则 .......................................................................35 材料和成品件验收 ............................................................35.1 金属材料验收 ..............................................................35.2 焊接材料验收 ..............................................................35.3 非金属衬里材料验收 ........................................................45.4 成品附件验收 ..............................................................46 预制 ........................................................................46.1 一般规定 ..................................................................46.2 底板预制 ..................................................................66.3 壁板预制 ..................................................................76.4 顶板预制 ..................................................................86.5 构件预制 ..................................................................87 组装 ........................................................................97.1 一般规定 ..................................................................97.2 基础验收 ..................................................................97.3 基础划线 .................................................................107.4 底板组装 .................................................................107.5 壁板组装 .................................................................107.6 加强筋的安装 .............................................................137.7 顶板组装 .................................................................137.8 烟气进出口组装 ...........................................................137.9 塔体焊接附件组装 .........................................................148 焊接 .......................................................................158.1 焊接工艺评定 .............................................................15DL/T XXXX-2008II8.2 焊工考核 .................................................................168.3 焊接施工准备 .............................................................168.4 焊接施工 .................................................................168.5 推荐的焊接顺序 ...........................................................188.6 焊缝外观检查 .............................................................198.7 焊缝无损探伤及严密性试验 .................................................198.8 缺陷修补 .................................................................219 塔体验收 ...................................................................219.1 一般规定 .................................................................219.2 塔体几何形状和尺寸检查 ...................................................229.3 充水试验 .................................................................2210 玻璃鳞片树脂防腐 ..........................................................2310.1 一般要求 ................................................................2310.2 基体处理 ................................................................2310.3 衬里施工 ................................................................2410.4 衬里检验 ................................................................2410.5 修补 ....................................................................2511 橡胶衬里防腐 ..............................................................2512 塔内件安装 ................................................................2612.1 一般规定 ................................................................2612.2 喷淋层安装 ..............................................................2612.3 除雾器安装 ..............................................................2712.4 搅拌系统安装 ............................................................2813 油漆与保温 ................................................................2814 验收记录 ..................................................................28附录 A T 形接头角焊缝试件制备和检验 ...........................................30附录 B 交工验收表格 ...........................................................32条文说明 ......................................................................47 DL/T ***---2008III前 言为了规范火电厂烟气脱硫工程建设，推动火电厂烟气脱硫行业的发展，根据国家发展改革委 2006 年行业标准项目计划(发改办[2006]1093 号文件)，特制定本标准。

本标准在编制过程中进行了广泛的调查研究，总结了我国火电厂烟气脱硫工程脱硫吸收塔建设的经验，特别是近几年来的经验，并以多种方式广泛征求了有关单位和专家的意见，最后经审查定稿本标准的附录 A 为规范性附录，附录 B 为资料性附录本标准为首次发布本标准适用于燃煤、燃气、燃油火电厂湿法烟气脱硫工程烟气脱硫吸收塔的施工与验收本标准由中国电力企业联合会提出本标准由电力行业环境保护标准化技术委员会归口并解释本标准起草单位： 江苏苏。