文献类型：期刊文献

中文题名：蒸汽发生器液压胀接保压时间及拉脱力的研究

英文题名：Research of Pressure Holding Time and Pulling out Force of Hydraulic Expansion in Steam Generator

作者：倪鹏[1];惠虎[1];王晓东[1];林绍萱[2];张丽艳[2];陈清琦[2]

机构：[1]华东理工大学承压系统与安全教育部重点实验室,上海200237;[2]上海核工程研究设计院,上海200233

年份：2015

卷号：49

期号：12

起止页码：2234

中文期刊名：原子能科学技术

外文期刊名：Atomic Energy Science and Technology

收录：CSTPCD;;EI(收录号：20160101761251);Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家科技重大专项资助项目(ZB02K02)

语种：中文

中文关键词：蒸汽发生器;保压时间;胀接试验;拉脱力

外文关键词：steam generator; pressure holding time; expansion test; pulling out force

摘要：蒸汽发生器是核电站的核心设备,若在正常工作中发生泄漏,将影响整个核动力装置的稳定性和安全性。蒸汽发生器中管板和换热管的连接主要靠液压胀接来完成,液压胀接处最容易发生泄漏,针对蒸汽发生器液压胀接的研究变得至关重要。本文进行了胀接试验及拉脱力试验,确定了合理的保压时间。对胀接过程进行有限元分析,研究了不同厚度管板的残余接触压力,并给出蒸汽发生器拉脱力的理论计算公式。结果表明,保压时间应控制在6~8s,蒸汽发生器拉脱力的计算应使用修正后的公式。
The steam generator is the key equipment of nuclear power plant.The stability and safety of the whole nuclear power plant will be affected by the leakage of steam generator during the normal work.The tube and tube sheet are connected by hydraulic expansion in steam generator.This expansion joint is the location liable to leak.It＇s of vital importance to study the hydraulic expansion of steam generator.According to expansion test and pulling out force test,the reasonable pressure holding time was determined.On the basis of the finite element analysis,the residual contact pressures of different thick tube sheets were researched.The theoretical calculation formula of pulling out force was also presented.The results show that pressure holding time should be controlled in 6-8sand the pulling out force in steam generator could be calcu-lated with revised formula.