摘要
分离式热管技术在工业领域已有应用,多用于余热回收锅炉等节能领域,具备加热面和冷却面完全分离、冷热源完全隔离且换热效率高等优点。结合分离式热管的工作特性开展了基于热管技术的非能动余热排出系统的理论设计,并基于系统程序对设计方案进行了分析论证,研究了不同充液率、冷热芯位差以及蒸发段和冷凝段面积比等系统条件下的热管传热能力,得到了各参数对热管性能的影响规律,并给出了推荐的适用于非能动余热排出系统设计的参数范围和方向。在本文计算范围内,充液率大于0.7后传热功率明显下降,零位差下系统仍能建立稳定循环,面积比在1.0~2.5范围内变化时,热管功率随面积比线性增大。
Separated heat pipe has been applied in the industrial field, and is mostly applied in energy-saving field such as waste heat recovery boilers, because of its advantages such as fully separation of hot surface and cooling surface, completely isolation of heat source and cold source, and high heat exchange efficiency. Based on the working characteristics of the separated heat pipe, the passive residual heat removal system based on the heat pipe was developed. The theoretical design of the residual heat removal system is analyzed and demonstrated based on the system program. The parameters on the performance of the heat pipe is obtained including the different liquid charging rates, the elevation difference between heat source with cold source and the condensation section area ratio. When the liquid charging rates is larger than 0.7, the heat transfer power of the system decreases obviously. Even without the elevation difference between heat source with cold source, the system still can build the convection. The heat transfer power of the system increases proportionally with the increasing of the condensation section area ratio, when it ranges from1.0 to 2.5.
作者
鲜麟
周科
李峰
杨帆
张卓华
张丹
王小吉
Xian Lin;Zhou Ke;Li Feng;Yang Fan;Zhang Zhuohua;Zhang Dan;Wang Xiaoji(Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institution of China,Chengdu,610213,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2019年第6期100-104,共5页
Nuclear Power Engineering
关键词
非能动余热排出系统
分离式热管
充液率
Passive residual heat removal system
Separated heat pipe
Liquid charging rate
