规范《DLT712-2000-火力发电厂凝汽器管选材导则》.pdfVIP

火力发电厂凝汽器管选材导则 DL/T712-2000 前 言 本导则是根据原电力工业部电力行业标准计划项目(综科教 1「998]28号)的安排修 订的，在编写格式和规则上以DL/1600-1996 《电力标准编写的摹本规定》为基础 SDI16-1984 《火力发电厂凝汽器管选材导则》于 1984年首次制定颁发，至今已有 14 年之久，对指导新机组凝汽器管的设计选材和老机组的换管选材提供了可靠的技术依据，在 保证凝汽器的安全运行方面发挥了重要的作用，但是，由于近年来电厂循环冷却水运行方式 及其水质发生了许多变化，大容量、高参数机组的发展对凝汽器的严密性和安全性提出了更 高的要求;另外，我国新型凝汽器管材品种的开发、研制及其试用，已取得大量的经验和结 果，为电厂凝汽器管选材提供了更多的选择。因此该导则已不能满足目前发展需求，应对其 进行必要的修订。 本次编写对原标准SDI16-1984主要进行了如下修订: — 删除了引言，增加了前言。 — 增加了范围和引用标准，删除了与引用标准相关的内容。 — 增加了新型加硼铜合金管、钦管的适用技术条件和常用不锈钢管的参考适用水质条 件。 — 修订了选材的技术规定。 — 修订了总则的条款。 — 修订了附录的内容。 本标准自实施之日起，SDI16-1984作废。 本标准的附录A、附录B都是标准的附录。 本标准的附录C、附录D、附录E、附录F都是提示的附录。 本标准由电力行业电厂化学标准化委员会提出 本标准由国家电力公司热工研究院归口。 本标准起草单位:国家电力公司热工研究院。 本标准主要起草人:汪德良、孙永。 本标准委托国家电力公司热工研究院负责解释。 目 次 前言········，·········，·······························，···········，···································……266 1 范围 ···········，····················································，·······························…… 268 2 引用标准 ············································，············································一· 268 3 总则 ····························，··································，································一· 268 4 冷却水水质 ······················································································…·…269 5 凝汽器用管材 ·········，·············································...··……，···…… 270 6 凝汽器管的选用 ··············································································…… 271 7凝汽器管板的选用 ··························，····································.·…… 272 8管材的质量标准和检验 ········，····················································.···……272 附录A (标准的附录) 水质的测定方法，····························，······················…… 273 附录B (标准的附录) 新型加硼铜合金管的化学成分及其力学性能 ·················…… 280 附录C (提示的附录) 国产管材和国外管材品种对照 ··，···············，·，······