Behaviour of steam generator bolted flange joints at elevated temperatures

被引：7
|
作者：
Vinod, V. [1 ]
Mourya, R. K. [1 ]
Sreedhar, B. K. [1 ]
Noushad, I. B. [1 ]
Rajan, K. K. [1 ]
机构：
[1] Indira Gandhi Ctr Atom Res, Fast Reactor Technol Grp, Kalpakkam 603102, Tamil Nadu, India
来源：
ANNALS OF NUCLEAR ENERGY | 2013年 / 51卷
关键词：
Differential thermal expansion; Steam Generator; Flanged joints; Sleeves for bolted joints; Leakage in flanged joints;
D O I：
10.1016/j.anucene.2012.08.023
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：
Manholes with flanged joints are provided in the sodium heated once through straight tube steam generators of Prototype Fast Breeder Reactor (PFBR). The material of construction of steam generator is modified 9Cr 1Mo grade steel with studs made of 1 Cr 0.5 Mo steel. During the commissioning of model steam generator, the flanged joint lost its leak tightness at elevated temperature due to differential thermal expansion between flange and stud. A design modification incorporating sleeves of higher thermal expansion coefficient is discussed in this paper. (c) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：307 / 310
页数：4
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