反应堆舱室屏蔽冷却水系统换热性能的数值模拟研究

作者:王英琳 张艳芝 李爱娟
单位:中核能源科技有限公司
摘要:以某高温气冷堆项目的屏蔽冷却水系统为研究对象,采用Fluent软件对笼式和扩展板式2种管道布置方案进行了数值模拟计算,分析了保温材料的导热系数、保温层厚度、扩展板竖向间距和高度对混凝土壁面温度的影响。研究结果表明:保温材料导热系数的降低和保温层厚度的增加有利于降低混凝土壁面的最高温度,且扩展板管道布置方案对混凝土壁面的冷却效果优于笼式方案;通过降低扩展板的间距可以加强混凝土壁面的散热效果,但扩展板高度的变化对评价指标没有明显的积极作用。
关键词:高温气冷堆反应堆舱室混凝土屏蔽冷却水系统计算流体动力学
作者简介:王英琳,女,1996年生,硕士研究生,工程师100193北京市海淀区中关村软件园26号中核能源科技有限公司E-mail:757452007@qq.com;
尊敬的用户,本篇文章需要2元,点击支付交费后阅读
参考文献[1] 刘声,盛选禹,亢方亮.高温气冷堆蒸汽发生器舱室混凝土温度场分析[J].核动力工程,2010,31(1):49- 51,6.

[2] 盛选禹,王联奎.高温气冷堆生物屏蔽层温度场分析[J].科技导报,2008,26(13):29- 33.

[3] 柏国胜,陈勉.大体积混凝土无冷却水管施工的研究与应用[J].四川水泥,2020(3):14- 16.

[4] 刘亚琼.大体积混凝土预埋冷却水管的效果研究[D].贵州:贵州大学,2009:72- 73.

[5] 张湧,刘斌,贺拴海,等.桥梁大体积混凝土温度控制与防裂[J].长安大学学报(自然科学版),2006,26 (3):43- 46.

[6] 张超,常晓林,刘杏红.大体积混凝土施工期冷却水管埋设形式的优化[J].天津大学学报(自然科学与工程技术版),2014,47(3):276- 282.

[7] 占玉林,段增强,张强,等.承台大体积混凝土水化热及温度控制措施研究[J].世界桥梁,2018,46(3):45- 49.
Numerical simulation of heat transfer performance of shielded cooling water system in reactor cabins
Wang Yinglin Zhang Yanzhi Li Aijuan
(China Nuclear Energy Technology Co., Ltd.)
Abstract: Taking the shielded cooling water system of a high temperature gas-cooled reactor project as the research object, the numerical simulation of two pipeline layout schemes of cage and extension plate is carried out by Fluent software, and the influence of the thermal conductivity of insulation material, the thickness of insulation layer, the vertical distance and height of extension plate on the temperature of the concrete wall is analysed. The results show that the decrease of the thermal conductivity of insulation material and the increase of the thickness of insulation layer are beneficial to reducing the maximum temperature of the concrete wall, and the cooling effect of the extension plate pipe layout scheme on the concrete wall is better than that of the cage scheme. By reducing the distance between extension plates, the heat dissipation effect of the concrete wall can be enhanced, but the change of the height of extension plate has no obvious positive effect on the evaluation index.
Keywords: high temperature gas-cooled reactor; reactor cabin; concrete; shielded cooling water system; computational fluid dynamics(CFD);
308 0 0
文字:     A-     A+     默认 取消