增压导向式喷动流化床固体颗粒循环速率的关联

Solid Circulating Rate in a Spouted-fluidized Bed with Draft Tube at Elevated Pressure

实验考察了喷动气速度、流化气速度、压力以及颗粒尺寸对增压导向式喷动流化床固体颗粒循环速率的影响规律，并归纳出关联式，为正在开发的第二代增压流化床联合循环发电系统(2GPFBC-CC)中关键部件—炭化炉的放大设计提供了帮助.

The effects of operating factors, such as spouting velocity, fluidizing velocity, pressure and particle size on solid circulating rate in a spouted-fluidized bed with draft tube were investigated. The experimental results showed that the spouting velocity was the most important factor. The solid circulating rate increased with increasing fluidizing velocity and pressure, and decreased with increasing mean particle diameter. Based on the experimental results, an empirical correlation of the solid circulating rate was established. This work is helpful to designing the carbide furnace in the second generation PFBC-CC system.