高通量工程试验堆出口管道焊缝破口频率计算

近年来,国内外进行多项研究堆概率安全分析,其中管道破口导致的失水事故是堆芯损坏的重要风险来源。本文参考管道破口计算程序PRAISE（Piping Reliability Analysis Including Seismic Events）方法,选取压力壳型研究堆——高通量工程试验堆（High Flux Engineering Test Reactor,HFETR）的运行工况,对其反应堆冷却剂出口管道的焊缝进行分析,得到运行中该处焊缝发生各类破口的频率。...

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Bibliographic Details
Published in核技术 Vol. 40; no. 11; pp. 78 - 84
Main Author 崔青蓝 彭常宏 郭赟
Format Journal Article
LanguageChinese
Published 中国科学技术大学核科学技术学院 合肥 230026 2017
Subjects
管道破口
缺陷
高通量工程试验堆
高通量工程试验堆
缺陷
HFETR
管道破口
Pipe break
Crack
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ISSN0253-3219
DOI10.11889/j.0253-3219.2017.hjs.40.110604

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Summary:近年来,国内外进行多项研究堆概率安全分析,其中管道破口导致的失水事故是堆芯损坏的重要风险来源。本文参考管道破口计算程序PRAISE（Piping Reliability Analysis Including Seismic Events）方法,选取压力壳型研究堆——高通量工程试验堆（High Flux Engineering Test Reactor,HFETR）的运行工况,对其反应堆冷却剂出口管道的焊缝进行分析,得到运行中该处焊缝发生各类破口的频率。
Bibliography:HFETR, Pipe break, Crack
31-1342/TL
CUI Qinglan ,PENG Changhong, GUO Yun （School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China）
Background： In recent years, a number of probabilistic safety analysis for research reactors have been carried out, in which loss-of-coolant accidents due to pipe break are important. Purpose： The aim is to calculate the break frequency of a weld of the reactor outlet pipe of the high flux engineering test reactor （HFETR）. Methods： This study referred to the algorithm of piping reliability analysis including seismic events （PRAISE） computer code, selected the operating condition of a tank-type research reactor--HFETR. Results： A weld joint of the reactor coolant outlet pipe was calculated. And the frequencies of all kinds of leaks at the weld joint were obtained. Conclusion： By doing ultrasonic examination before the operation, the frequency of pipe break can be effectively reduced.
ISSN:0253-3219
DOI:10.11889/j.0253-3219.2017.hjs.40.110604