DL／T440-2004《在役电站锅炉汽包的检验及评定规程》.pdfVIP

ICS27.100 F23 备案号:13614一2004 EIL 中华 人 民共 和 国 电力行 业 标 准 DL/T 440一 2004 代替DL440一 1991 在役电站锅炉汽包的检验及评定规程 Thecodeofinspectionandevaluationforexistingboilerdrum infossil-fuelpowerplants 2004-03-09发布 2004-06-01实施 中华人民共和国国家发展和改革委员会 发布 DL/T440一 2004 目 次 前言 ·······························”··················“····························································……n 1 范围 ········“······································”··················”··”·······“····························…… 1 2 规范性引用文件 ·························································“·“······················“··········…… 1 3 总则 ································································································”·············”·…… 1 4 检验人员及评定单位 ·····························································································…… 1 5 汽包检验 ············································································································…… 1 6 强度校核与缺陷评定 ····················································································”·”····……4 7 低周疲劳寿命估算 ································································································……5 8 缺陷处理措施 ·······································”·····························································…… 5 DL/T440一 2004 月U 青 为了加强火力发电厂在役锅炉汽包的安全监督，保证安全运行，延长使用寿命，保障人身安全， 根据原国家经贸委电力司 《关于确认 1998年度电力行业标准制、修订计划项 目的通知》(电力 〔1999] 40号)，对DL440-1991 《在役电站锅炉汽包的检验、评定及处理规程》进行了修订。 本标准与DL44(卜.1991相比有以下一些主要变化: — 标准名称改为 在《役电站锅炉汽包的检验及评定规程》: — 对在役汽包状态检验的项目、周期、