LI Xianwei1, 2 ， YANG Shaojun2 ， LIU Xiaocheng2 ， XU Xiang2 ， XIAO Yunhan2
（1. University of Chinese Academy of Sciences， School of Physics，Beijing 100492， China； 2. Key Laboratory of Advanced Energy and Power， Institute of Engineering Thermophysics， Chinese Academy of Sciences， Beijing 100190， China）
Abstract：Flow characteristics of high flux J-valve were investigated in a pressurized dense transport bed. The effects of the fluidization numbers of J-valve(Nj), the inclined pipe of J-valve(Ni) temperature and pressure on recycle device were researched.Experiment results indicate that the fluidization numbers of the inclined pipe of J-valve(Ni) and the pressure have no effect on solids circulation rates when the temperature and fluidization numbers of J-valves(Nj) are constant. The solids circulation rate increases with the increasing of Njwhen Njis less than 10.Fluidization instability occurs when Njis greater than 10 at room temperature. Solids circulation rate decreases with the increasing of temperature when Njis constant. Correlations of solids circulation rates up to 750 kg/(m2·s) and Njwere established.
Keywords: J-valve; two-phase flow; solids circulation rate; fluidization number
文章编号：1008-5548（2016）06-0084-06
DOI：10.13732/j.issn.1008-5548.2016.06.019
收稿日期：2016-03-08，修回日期：2016-11-04，在线出版时间：2016-12-06。
基金项目：中科院战略性先导科技专项，编号 ：XDA07050500；中国科学院工程热物理研究所所长基金重点项目。
第一作者简介：李现伟（1989—），男，硕士研究生，研究方向为密相输运床气固流动研究。E-mail：lixianwei@iet.cn。
通信作者简介：阳绍军（1979—），男，博士，助理研究员，研究方向为煤炭清洁高效利用。E-mail：yangshaojun@iet.cn。
