Scholarlink

The purpose of the paper is to evaluate whether primary piping thermometers are unreliable missile, in order to provide a basis for the design of protection in nuclear power plants. Deterministic and probabilistic methods are adopted for the analysis. To determine whether the weld seam meets the integrity requirements under load, a mechanical analysis of the weld seam between the thermowell and the boss is performed, focusing on stress and fatigue. At the same time, the failure probability of the weld seam between the thermowell and the boss under stress corrosion cracking and high- and low-cycle fatigue is calculated. The analysis and calculation results show that primary piping thermometers and thermowells are unreliable components.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Analysis of Primary Piping Thermometer Missile Based on Deterministic Method and Probabilistic Method

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Huaiming Cui,
  • Jing Chen,
  • Xifeng Lu,
  • Bingyan Huang,
  • Mingli Wang,
  • Xu Liu,
  • Deyan Kong

摘要

The purpose of the paper is to evaluate whether primary piping thermometers are unreliable missile, in order to provide a basis for the design of protection in nuclear power plants. Deterministic and probabilistic methods are adopted for the analysis. To determine whether the weld seam meets the integrity requirements under load, a mechanical analysis of the weld seam between the thermowell and the boss is performed, focusing on stress and fatigue. At the same time, the failure probability of the weld seam between the thermowell and the boss under stress corrosion cracking and high- and low-cycle fatigue is calculated. The analysis and calculation results show that primary piping thermometers and thermowells are unreliable components.