摘要
为了提高核电站现有的非能动氢复合器效率,基于其工作原理作出假设并建立相应的理论模型,将复合器复合效率与内部气体的扩散联系起来,并在此理论模型的基础上进行氢复合器结构优化设计,提出了收缩管式非能动氢复合器的构想,并进行了相应的CFD模拟,结果表明在保证入口流量的基础上,其特设的"类烟囱"结构能够很好地实现气体对流并增强气体分子的扩散,从而提高氢复合器的效率,一定程度上减小了安全壳内发生氢燃——氢爆的危险。
In order to improve the existing passive autocatalytic hydrogen recombiner efficiency of nuclear power plant,its working principle based on the assumptions and theoretical model is established,in which the combustion efficiency and diffusion of internal gases are linked. And based on the theoretical model,the structure of hydrogen recombiner is optimized. The idea of reducer passive hydrogen recombiner is put forward and the corresponding CFD simulation is carried out. The results show starting from the premise that inlet actual volumetric flow is the same,and its special structure which is similar to chimney can make the gas convect well and enhance the diffusion of gas molecules. As a result,the efficiency of hydrogen recombiner is improved and the danger of the hydrogen deflagration or detonation,inside the containment vessel is reduced to some extent.
出处
《节能技术》
CAS
2014年第3期205-209,共5页
Energy Conservation Technology
关键词
核电站
非能动
氢复合器
结构优化
CFD模拟
nuclear power plant
passive autocatalytic
hydrogen recombiner
structure optimization
CFD simulation
