超临界机组主蒸汽管道P91热压弯头强度分析

doi:10.3969/J.ISSN.2095-3429.2017.02.002

发电技术 ›› 2017, Vol. 38 ›› Issue (2): 7-11.DOI: 10.3969/J.ISSN.2095-3429.2017.02.002

超临界机组主蒸汽管道P91热压弯头强度分析

刘明, 白佳

华电电力科学研究院, 浙江杭州 310030

收稿日期:2017-03-20 修回日期:2017-04-06 出版日期:2017-04-30 发布日期:2017-04-30
作者简介:刘明(1985-),男,安徽宣城人,硕士,工程师,主要从事管道应力计算分析、管道振动分析与治理及支吊架优化调整工作

Strength Analysis of P91 Hot Pressing Elbow in Main Steam Pipeline of Supercritical Unit

LIU Ming, BAI Jia

Huadian Electric Power Research Institute, Hangzhou 310030, China

Received:2017-03-20 Revised:2017-04-06 Published:2017-04-30 Online:2017-04-30

摘要/Abstract

摘要： 采用有限元仿真分析方法对某600MW超临界机组主蒸汽管道P91热压弯头进行了强度分析,得到了90°弯头结构在内压作用下的应力分布规律,并依据仿真分析结果选择测点位置,采用电阻应变测量技术对该弯头的应力分布进行了试验测试,测试结果与仿真分析结果吻合度较好,最后采用有限元仿真分析结果对该弯头进行了强度校核。

关键词: 热压弯头, P91, 应力测试, 主蒸汽管道, 仿真分析

Abstract: The analysis method of main steam pipeline of P91 hot pressing elbow of a 600 MW supercritical unit strength analysis using finite element simulation,got a 90 degree bend structure under internal pressure stress distribution,and on the basis of the simulation results select the measuring position,the resistance strain measurement technique on the stress distribution of the elbow the test,the test results and the simulation results is better,finally using the finite element simulation results of the bend strength was checked.

Key words: hot pressing elbow, P91, stress test, main steam line, simulation analysis

中图分类号:

TK225

刘明, 白佳. 超临界机组主蒸汽管道P91热压弯头强度分析[J]. 发电技术, 2017, 38(2): 7-11.

LIU Ming, BAI Jia. Strength Analysis of P91 Hot Pressing Elbow in Main Steam Pipeline of Supercritical Unit[J]. Power Generation Technology, 2017, 38(2): 7-11.

超临界机组主蒸汽管道P91热压弯头强度分析

Strength Analysis of P91 Hot Pressing Elbow in Main Steam Pipeline of Supercritical Unit

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