• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>IEEE Sustainable Power and Energy Conference >Analysis of Frequent Tube Burst of High Temperature Reheater in 600 MW Unit
【24h】

Analysis of Frequent Tube Burst of High Temperature Reheater in 600 MW Unit

机译：600 MW单位高温再热器频繁管爆发分析

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The reasons of frequent tube burst of the high temperature reheater in a supercritical 600 MW unit were systematically investigated via the examination of macroscopic inspection, chemical composition, mechanical properties, microstructures, scanning electron microscope and energy disperse spectroscopy detection. It is demonstrated that the tube burst of the high temperature reheater results from not only design factors, but also manufacture quality. Due to the absence of solid solution treatment in spare elbow, the inner dislocations and residual stress increase obviously, which accelerates the precipitation of carbide containing Cr and the formation of Cr depleted zone on grain boundary(GB) subsequently, leading to the decrease of GB corrosion resistance and the final leakage of high temperature reheater tube induced by intergranular corrosion.
机译：通过宏观检测，化学成分，机械性能，微观结构，扫描电子显微镜和能量分散光谱检测，系统地研究了超临界600 MW单元高温再热器的频繁的原因。据证明，高温再热器的管爆发不仅是设计因素，还可以制造质量。由于备用肘部中的固体溶液处理，内部脱位和残余应力明显增加，其随后加速了含Cr的碳化物的沉淀并在晶界（GB）上形成Cr耗尽区，导致GB的减少晶体腐蚀诱导的高温再热器管的耐腐蚀性和最终泄漏。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号