广东电力2016，Vol.29Issue(11)：8-11,127,5.DOI:10.3969/j.issn.1007-290X.2016.11.002
火力发电厂高温蒸汽管道应力评估与调整
Assessment and Adj ustment for Stress of High-temperature Steam Pipelines in Thermal Power Plants
成明涛 1林友新 1肖志前 1陈拓1
作者信息
- 1. 广东电网有限责任公司电力科学研究院，广东 广州 510080
- 折叠
摘要
Abstract
In allusion to the problem of abnormal expansion of reheat steam pipeline of one 600 MW unit in trial operation caused for reason of its faulted installation,this paper uses CAESAR Ⅱ software to analyze and study heat expansion,pri-mary stress and secondary stress. Results indicate at the same time of heat expansion changes obviously,distribution of pri-mary stress and secondary stress both change accordingly within safety range. Finally,in allusion to big partial heat stress in the pipeline,it studies two adjustment methods for stress,one is increasing wall thickness,and the other is cold spring,and obtains influence of wall thickness and cold spring respectively.关键词
火力发电厂/管道/应力/评估/调整Key words
thermal power plant/pipeline/stress/assessment/adjustment分类
能源科技引用本文复制引用
成明涛,林友新,肖志前,陈拓..火力发电厂高温蒸汽管道应力评估与调整[J].广东电力,2016,29(11):8-11,127,5.
