700℃超超临界机组锅炉过热器选材分析  

Materials Selection for Boiler Superheater of 700 ℃ Ultra Supercritical Units

作　　者：王崇斌[1] 诸育枫[1] 王煜[1] 徐若雨 秦升[1] 朱更[1] 

机构地区：[1]上海锅炉厂有限公司,上海200245

出　　处：《发电设备》2016年第3期168-172,共5页Power Equipment

基　　金：科技部国家高科技研究发展计划(863计划)课题(2012AA050502)

摘　　要：介绍了700℃超超临界机组锅炉过热器候选新材料Sanicro25更高强度奥氏体钢小口径管、HR6W铁镍基合金小口径管、617mod镍基合金小口径管、740H镍基合金小口径管等材料性能,分析了Super304H、TP310HCb N、Sanicro25、HR6W、617mod、740H管子制造700℃超超临界机组锅炉过热器的适用温度范围,提出了700℃超超临界机组锅炉过热器选材建议。The properties of small-diameter tubes or pies made of following candidate materials were introduced for the superheater of 700℃ ultra supercritical boilers, such as the austenitic stainless steel Sanicro25, Fe-Ni-based alloy HR6W, Ni-based alloy 617mod and Ni-based alloy 740H, etc. Meanwhile, suitable service temperature ranges of tubes Super304H, TP310HCbN, Sanicro25, HR6W, 617mod and 740H for the superheater of 700 ℃ ultra supercritical boilers were also analyzed, based on which suggestions were proposed for material selection of boiler superheater in 700 ℃ultra supercritical units.

关 键 词：超超临界机组 过热器 材料性能 

分 类 号：TK225[动力工程及工程热物理—动力机械及工程]