Cover plate welding sequence and shape rationality simulation analysis on wall cracks of stainless steel spent fuel pool

被引：2

作者：

Zhao, Xiaoxin ^{[1
]}

Zhang, Peng ^{[2
,3
]}

Li, Jianguo ^{[2
,3
]}

Ma, Tao ^{[2
,3
]}

Miao, Chunyu ^{[1
]}

Zhang, Renyou ^{[4
]}

Wu, Siyuan ^{[4
]}

Zhao, Youliang ^{[1
]}

Zhu, Jialei ^{[1
]}

Jiao, Xiangdong ^{[1
]}

机构：

[1] Beijing Inst Petrochem Technol, Res Ctr Energy Engn Adv Joining Technol, Beijing 102617, Peoples R China

[2] Inner Mongolia First Machinery Grp Co Ltd, Baotou 014010, Peoples R China

[3] State Key Lab Smart Mfg Special Vehicles & Transmi, Baotou 014010, Peoples R China

[4] Beijing Inst Petrochem Technol, Sch Safety Engn, Beijing 102617, Peoples R China

来源：

PROGRESS IN NUCLEAR ENERGY | 2022年 / 154卷

关键词：

Cover plate welding; Spent fuel pool; Welding sequence; Temperature field; Stress field; HEAT-SOURCE MODEL; POWER;

D O I：

10.1016/j.pnucene.2022.104481

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The wall of spent fuel pools is prone to pitting or electrochemical corrosion owing to a long-term service in acidic media, where a penetrating cracking may occur in severe cases. Moreover, totally replacing the spent fuel pool causes huge economic losses. Thus, cover plate welding is used to repair the cracked region of spent fuel pools using the 'fitness for service' principle. The finite element method is used to simulate and analyse the temper-ature and stress fields during the repair process of cover plate welding to guarantee that the repair process does not cause new dangerous effects on the cracked region. In this study, we used self-fusion gas tungsten arc welding (GTAW) to cover defects with square and circular patch plates. The modified double-ellipsoid heat source model is derived for cure welding. The effects of two patch plate shapes and different welding sequences on the tem-perature and stress fields during the welding process were compared using numerical analyses. Finally, a reasonable patch board shape and welding sequence were determined.

引用

页数：14

共 1 条

[1] Research on Underwater Laser Welding System and Welding Process of S32101 Duplex Stainless Steel Cladding in Spent Fuel Pool
Zhang, Xiaochun
Shen, Guangyao
Mei, Le
Zhu, Jialei
Li, Congwei
Hedongli Gongcheng/Nuclear Power Engineering, 2024, 45 (05): : 225 - 231

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