THERMAL STRESS ANALYSIS AND FATIGUE CHECK OF MAIN STEAM SAFETY VALVE FOR NUCLEAR POWER STATIONS

ZHANG QiangSheng; CHEN TianMin; ZHU Bo; SHEN Wei; LI ZhongXun

doi:10.16579/j.issn.1001.9669.2019.05.041

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THERMAL STRESS ANALYSIS AND FATIGUE CHECK OF MAIN STEAM SAFETY VALVE FOR NUCLEAR POWER STATIONS

更新时间：2022-09-22

- THERMAL STRESS ANALYSIS AND FATIGUE CHECK OF MAIN STEAM SAFETY VALVE FOR NUCLEAR POWER STATIONS
- Journal of Mechanical Strength Vol. 41, Issue 5, Pages: 1266-1270(2019)
- 作者机构：
  
  1. 生态环境部核与辐射安全中心
  2. 苏州纽威阀门股份有限公司
  3. 中国核工业集团有限公司
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2019.05.041
  CLC：
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ZHANG QiangSheng, CHEN TianMin, ZHU Bo, et al. THERMAL STRESS ANALYSIS AND FATIGUE CHECK OF MAIN STEAM SAFETY VALVE FOR NUCLEAR POWER STATIONS. [J]. 41(5):1266-1270(2019)
DOI：

ZHANG QiangSheng, CHEN TianMin, ZHU Bo, et al. THERMAL STRESS ANALYSIS AND FATIGUE CHECK OF MAIN STEAM SAFETY VALVE FOR NUCLEAR POWER STATIONS. [J]. 41(5):1266-1270(2019) DOI： 10.16579/j.issn.1001.9669.2019.05.041.

摘要

应用有限元软件Ansys对某核级主蒸汽安全阀样机进行温度场和热固耦合应力场计算,安全阀在工作压力和热应力作用下的应力通过静强度校核。在此基础上,计算该安全阀承压部件在各循环工况下的交变应力强度,并依据RCC-M规范对该安全阀进行疲劳分析。结果表明该安全阀样机在各循环工况能满足疲劳准则要求,具有良好的工程实用价值。

Abstract

Temperature field and thermal-structure coupling stress field calculation were conducted to a main steam safety valve prototype for nuclear power stations using finite element software Ansys,and the stress of the valve subjected to operating pressure load and thermal stress was in compliance with the stress evaluation criteria. In addition,alternating stress of the pressure components for the specified cyclic operation application of loads and thermal stresses were calculated,and fatigue analysis was evaluated according to RCC-M code. Results indicate that the valve prototype is able to meet the requirements of fatigue failure criteria for the specified cycles and would have good prospects in engineering applications.

关键词

热应力安全阀有限元Ansys应力评定疲劳分析

Keywords

Thermal stressSafety valveFinite elementANSYSStress evaluationFatigue analysis

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