【作者】 王长山； 张志谦； 王勇奉； 金靖； 杨鹏飞； 李雄彦； 张静； 耿岩；

【Author】 WANG Changshan;ZHANG Zhiqian;WANG Yongfeng;JIN Jing;YANG Pengfei;LI Xiongyan;ZHANG Jing;GENG Yan;Stated Nuclear Electric Power Planning Design & Research Institute Co., Ltd.;School of Architecture and Engineering, Beijing University of Technology;

【机构】 国核电力设计研究院有限公司； 北京工业大学建筑工程学院；

【摘要】 热水储能罐在工作状态下由于内部热水温度场作用会产生温度应力,由于布水盘的存在,水温沿罐体高度发生变化,罐壁将承受不均匀的应力作用。本文依托某30,000m3热水储能罐,确定了大体积热水储能罐的温度应力计算方法,并对罐体在冷水、热水、含过渡层的工作状态下的温度应力分布特征进行了研究,确定了该类罐体的温度荷载作用效应特征。同时,通过参数分析,给出了大体积热水储能罐温度应力效应系数取值建议,为储能罐的设计提供理论指导。更多还原

【Abstract】 Heat water storage energy tank is subjected to thermal stress caused by internal hot water under operation condition. Because of the layout of water distribution tubes, water temperature varies along the height of tank wall,leading to the non-uniform stress distribution in the tank wall. In this research, temperature and stress analysis method was investigated on the basis of a 30,000m3 heat water storage energy tank under construction in China. Thermal stresses and temperature response characteristics were analyzed under the cases of Cold Mode, Hot Mode and Operation Mode with transition layer. Meanwhile, parametric analysis on bottom temperature and friction coefficient were also carried out to establish the relationship between sensitive parameters and thermal stress, providing effective suggestions for practical design of storage engery tanks.更多还原