摘要
本文叙述了某燃气轮机发电厂1号机组余热锅炉再热器1出口至再热器2进口集箱支吊架的运行时状态和存在的问题,支吊架调整前,再热器1出口集箱垂直方向热位移异常,集箱一端向下热位移不足,另一端反向向上翘曲。支吊架在状态检查以及其应力校验、核算的基础上,通过综合性的研究分析提出了该管道支吊架的调整方案并且依据方案对再热器1出口集箱载荷设计偏大的2组支吊架进行了更换。热态复核检验结果为支吊架承载应力及热位移量正常,管道热位移量正常,管系应力合格,达到了整治目标。
This paper describes the operation status and existing problems of the header support suspension of the waste heat boiler of unit 1 of a gas turbine power plant from the outlet of reheater 1 to the inlet of reheater 2.Before the adjustment of the support suspension,the vertical thermal displacement of the header at the outlet of reheater 1 is abnormal,the downward thermal displacement at one end of the header is insufficient,and the reverse upward warping at the other end.On the basis of condition checking,stress checking and calculation,the adjustment scheme of the pipeline support and hanger is put forward through comprehensive research and analysis.According to the scheme,two groups of support and hanger with larger design load on the outlet header of reheater 1 are replaced.The results of thermal inspection show that the load-bearing stress and thermal displacement of the support and hanger are normal,the thermal displacement of the pipeline is normal,and the stress of the pipeline system is qualified,which achieves the renovation goal.
作者
虞辉
章恂
濮鸿威
Yu Hui;Zhang Xun;Pu Hongwei(Huaneng Nanjing Gas Turbine Power Generation Co.,Ltd.,Nanjing 210046,China)
出处
《燃气轮机技术》
2019年第4期68-72,38,共6页
Gas Turbine Technology
关键词
管道
支吊架
应力
调整
pipe
support and hanger
stress
adjustment
