Abstract A transparent multi-tube vapor-liquid-solid circulating fluidized bed evaporator was designed and built to research the pressure drop and distribution of solid particles in the heating pipe bundle. The effects of circulating flow rate, heat flux and amount of additive particle on pressure drop and distribution of solid particles in the heating pipe bundle were investigated using the pressure sensors and CCD image gathering and processing system. The results show that as the circulating flow rate and additive particle amount increase, the nonhomogeneity of particle distribution decreases and the pipe bundle pressure drop increases; while the heat flux increases, the nonhomogeneity of particle distribution decreases and the pipe bundle pressure drop fluctuates, but the pipe bundle pressure drop value is always less than the value gathered when the heating power is zero.
QI Guo-Peng, WANG Bing-Bing, JIANG Feng, LI Xiu-Lun.Pressure Drop and Particles Distribution in the Vapor-Liquid-Solid Multi-Pipe Circulating Fluidized Bed Evaporator[J] Chemcial Industry and Engineering, 2013,V30(3): 66-70
2013, Vol. 30 
