Numerical simulation of dehydrogenation induction heating temperature field of the surfacing of tube-sheet on its primary side

LI Xiangguo; HE Xixin; YANG Jie; TANG Honglei; ZHAO Pengcheng; LI Bin; YU Chao

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Numerical simulation of dehydrogenation induction heating temperature field of the surfacing of tube-sheet on its primary side
Vol. 49, Issue 8, Pages: 29-35(2019)
DOI：

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LI Xiangguo, HE Xixin, YANG Jie, et al. Numerical simulation of dehydrogenation induction heating temperature field of the surfacing of tube-sheet on its primary side. [J]. 49(8):29-35(2019)
DOI：

LI Xiangguo, HE Xixin, YANG Jie, et al. Numerical simulation of dehydrogenation induction heating temperature field of the surfacing of tube-sheet on its primary side. [J]. 49(8):29-35(2019) DOI：

摘要

运用有限元方法对核电蒸发器管板一次侧堆焊的焊后消氢感应加热工艺进行数值分析。设计了适合管板感应加热的感应器结构,基于ANSYS的APDL程序建立管板感应加热的电磁-热耦合模型,分析感应加热过程的感应线圈结构和参数对温度场分布的影响。结果表明,在合适的参数下,侧面和底面同时安置感应线圈能极大提高加热效率并改善整体加热效果。采用优选感应加热参数进行相关实验,数值模拟得到的温度与实验结果基本一致。

Abstract

In this paper,the finite element method（FEM）is used to analyze the post-weld dehydrogenation induction heating process for the surfacing of tube sheet on its primary side of a nuclear power evaporator. The inductor structure suitable for induction heating of tubesheet was designed. The electromagnetic-thermal coupling model of tube-sheet induction heating was established based on the ADSL program in ANSYS. The influences of the structure and parameters of induction coil on the temperature distribution during induction heating were studied. The results showed that under the suitable parameters,the installation of induction coils on both sides and bottom could greatly improve the overall heating effect and heating efficiency. Experiments of the optimal parameters were carried out and the simulated temperature distribution was agreed with the experimental results.