Ｐ９２钢主蒸汽管道运行安全性和寿命评估的研究

华电技术 ›› 2009, Vol. 31 ›› Issue (5): 31-35.

Ｐ９２钢主蒸汽管道运行安全性和寿命评估的研究

柯文石^１，刘金生^１，洪道文^１，刘鸿国^１，李松^２，蔡晖^２

１．华能浙江分公司，浙江玉环　３１７６０４；２．西安热工研究院有限公司，陕西西安　７１００３２

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-05-25 发布日期:2009-05-25

Research on operation safety and life evaluation for main steam pipe made of P92 steel

KE Wenshi¹, LIU Jinsheng¹, HONG Daowen¹, LIU Hongguo¹, LI Song², CAI Hui²

1.Zhejiang Branch Office, China Huaneng Group, Yuhuan 317604, China; 2.Xi’an Thermal Power Research Institute Corporation Limited, Xi’an 710032, China

Received:1900-01-01 Revised:1900-01-01 Online:2009-05-25 Published:2009-05-25

摘要/Abstract

摘要： 某电厂一期２台１０００ＭＷ超超临界机组，采用Ｐ９２钢ＩＤ３４９ｍｍ×７２ｍｍ规格主蒸汽管道，这种“薄壁”管的运行安全性和寿命倍受人们关注。借助从已建成的状态监测寿命安全管理系统获得的实际管道损伤的全作用载荷谱，针对“常规持久强度”和“下边界持久强度”２种材料蠕变损伤规律，考虑“薄壁”和“正常（厚壁）”２种壁厚，分析研究了几种组合条件下Ｐ９２钢主蒸汽管道的运行安全性和预期使用寿命。

关键词: 全载荷谱, 主汽管道, 运行安全性, 寿命研究

Abstract: In the two 1000MW ultrasupercritical units of a certain power plant project phase I, the P92 steel ID 349mm×72mm main steam pipe was adopted. The operation safety and life of this thin walled pipe attracted a lot of attention. With the help of fullload spectrogram of actual pipe damage obtained from the constructed condition monitoring and life safety management system, aiming at the laws of two material creep damage conventional longtime strength and lower boundary longtime strength, considering two wall thickness thin wall and thick wall, the operation safety and expected service life of P92 steel main steam pipe under the conditions of several combinations were analyzed and researched.

Key words: full-load spectrogram, main steam pipe, operation safety, life research

柯文石;刘金生;洪道文;刘鸿国;李松;蔡晖. Ｐ９２钢主蒸汽管道运行安全性和寿命评估的研究[J]. 华电技术, 2009, 31(5): 31-35.

KE Wenshi;LIU Jinsheng;HONG Daowen;LIU Hongguo;LI Song;CAI Hui. Research on operation safety and life evaluation for main steam pipe made of P92 steel[J]. Huadian Technology, 2009, 31(5): 31-35.