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The Position Design for M310 Reactor Vessel’s Instrumentation Penetration Based on None-Alignment Analysis

[+] Author Affiliations
Xin Xia, Hua Du, Ning Li, Bin Xu, Yan Li, Wei Zhao

Nuclear Power Institute of China, Chengdu, Sichuan, China

Paper No. ICONE21-16177, pp. V002T03A041; 3 pages
  • 2013 21st International Conference on Nuclear Engineering
  • Volume 2: Plant Systems, Construction, Structures and Components; Next Generation Reactors and Advanced Reactors
  • Chengdu, China, July 29–August 2, 2013
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5579-9
  • Copyright © 2013 by ASME


The position of the reactor pressure vessel’s instrumentation penetration is the most important factor that influences the none-alignment between the instrumentation penetration and the instrumentation tube of reactor internals. The more the none-alignment, the more wear the flux thimble will suffer, which will damage the flux detector and cause economic losses. This paper analyzes the none-alignment between the instrumentation penetration and the instrumentation tube, and combines the feedback of the experience in nuclear power plants having been built or being build, puts forward the reasonable design value for the instrumentation penetration’s position.

Copyright © 2013 by ASME



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