吸收球气力输送供料器可视化试验研究  

Experimental Study on Visualization Discharge Vessel for Pneumatic Conveying of Absorber Spheres

作　　者：陈文胜[1] 李天津[1] 陈凤[1] 何学东[1] 罗杰[1] 黄志勇[1] 

机构地区：[1]清华大学核能与新能源技术研究院,北京100084

出　　处：《原子能科学技术》2012年第1期94-98,共5页Atomic Energy Science and Technology

基　　金：国家重大科技专项经费资助项目(ZX06901)

摘　　要：供料器是球床式高温气冷堆吸收球停堆系统中吸收球气力输送的一个重要设备。在以常温常压空气为气源的压送式气力输送试验系统中,使用玻璃球代替吸收球,进行了改进的流化管式可视化供料器的气力输送试验。结果表明:改进的流化管式供料器气力输送过程稳定可靠;随着供料器入口空气流速由8m/s增大到29m/s,颗粒个数流率由约4.7×104 min-1增大到约1.25×105 min-1后保持不变,料气质量混合比则是先增大后减小,供料器压降先增大后减小再增大;空气流速大于19m/s后,气力输送进入到稳定的稀相输送阶段,垂直管段压降缓慢增大。Discharge vessel is an important equipment in the absorber sphere shutdown system of pebble-bed high-temperature gas-cooled reactor. The visualization pneumatic conveying test of the optimized fluidizing discharge vessel was performed at ambient temperature and pressure by using glass balls instead of absorber sphere on a positive pressure system. Experimental results show that the performance of the optimized fluidizing discharge vessel is stable and reliable. With the increase of gas velocity from 8 m/s to 29 m/s, the flow rate of the glass sphere increases from 4.7× 104 min-1 to 1.25× 10 min-1 and then remains constant. The solid-gas mass flow ratio increases first and then decreases with the increase of gas velocity. The pressure drop of discharge vessel increases first and then decreases and then increases again with the increase of gas

关 键 词：供料器 气力输送 可视化 吸收球停堆系统 高温气冷堆 

分 类 号：TL351[核科学技术—核技术及应用]