Paper Title:
The Structural Design of Nozzle in Outer Mixing Mode for Preparing Superfine Particles by SCF Technology
  Abstract

Based on the creative design of nozzle structure, the application fields of the micro-particles production using supercritical fluids (SCF) can be further broaden. According to the analysis of the structural characteristics of the nozzles, a new kind of nozzle with a tunable annular gap is proposed in this research, which includes a cover, movable trays, unmovable trays, seal fittings and connecting components. By virtue of FLUENT software, the flow field of the nozzle in outer mixing mode with two passages is numerically simulated. The effects of the passing length of SCF before mixing and the height of conic convexity on the flow-field are analyzed. The simulation results show that the above length does adverse effect on enhancing mixing extent, however, the smaller height of convexity can help achieve better mixing level. Then the nozzle is redesigned in which a movable tray and an unmovable tray are removed. The improved nozzle has simple and reasonable structure and can do better work on improving gas-liquid mixing extent.

  Info
Periodical
Advanced Materials Research (Volumes 236-238)
Edited by
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
Pages
1614-1618
DOI
10.4028/www.scientific.net/AMR.236-238.1614
Citation
Y. Liu, Y. P. Qu, W. Q. Wang, "The Structural Design of Nozzle in Outer Mixing Mode for Preparing Superfine Particles by SCF Technology", Advanced Materials Research, Vols. 236-238, pp. 1614-1618, 2011
Online since
May 2011
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Price
$32.00
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