不同主泵结构对主系统抗震设计的影响分析

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Effect on Seismic Design of Primary System with Different Primary Reactor Coolant Pump

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610041, China

摘要: 以主系统非线性有限元模型为研究对象,采用ANSYS软件分析不同主泵结构对主系统地震载荷的影响。结果表明,2种主泵模型下主系统地震载荷应力评定均满足规范要求,主泵阻尼器位置要求提高土建抗震设计等级;采用使系统整体频率远离响应谱峰值区的主泵模型计算得到的主系统地震载荷较小。
- 主泵 /
- 主系统 /
- 地震分析 /
- 数值计算
Abstract: The primary system seismic analysis was performed to study the influence on primary system seismic loads with different reactor coolant pump by using ANSYS software. The results show that the stresses evaluation of the primary pipe for two reactor coolant pump models are meet code requirement. Theaseismatic intensity of civil work at the position of the pump snubbers should be improved. The seismic loads based on the pump model in natural frequencies of system which are far away from the spectral peak are lower.
- Reactor coolant pump /
- Primary system /
- Seismic analysis /
- Numerical calculation