摘要
在气液固外循环流化床换热器的下管箱安装了不同型式的三相分布板,考察了分布板开孔率、安装高度,操作参数等对全床压降的影响.研究表明,分布板的开孔率、安装高度、液体流量、固体体积分率和颗粒粒度分布等对全床压降有较大影响;得到了在稳定操作情况下,使得全床压降较小且固体颗粒和气泡在管束中分布效果较好的设计参数,以指导工程实际应用.
An experimental apparatus of the gas-liquid-solid exterior circulating fluidized bed heat exchanger, which made use of uneven-pores distributor as the three-phase distribution device, was established. The effects of pores rate and fixed heights of distributor, operating parameters on pressure drop of the whole bed were studied. Experimental result shows that the pores rate and fixed height of distributor, liquid flux, average solid holdup, particle size distribution all have effect on the whole pressure drop, and obtain the parameter of the distributor which has better distributing effect under lower pressure drop at the condition of stable operation, so as to direct the engineering application.
出处
《河北工业大学学报》
CAS
北大核心
2009年第5期42-45,共4页
Journal of Hebei University of Technology
基金
河北省教育厅计划项目(2002148)
关键词
气液固
外循环流化床
压降
三相分布板
开孔率
gas-liquid-solid
exterior circulating fluidized bed
pressure drop
three-phase distributor
pores rate
