LI Jiantao， LI Zhi， LU Chunxi

Abstract：In order to study the unstable pressure in closing cylinder of circulation stripping vortex quick separator system because of the asymmetric vortex flow, an experiment was performed to measure the characteristics of time and space between the position of the vortex flow and the operating conditions of the experiment. The guide plate was installed in order to eliminate the unstable vortex flow in closing cylinder of circulation stripping vortex quick separator system. The results show that the flow field in closing cylinder of circulation stripping vortex quick separator system is optimized as the guide plate is installed. On the basis of comparing the experimental data of different structure, the following conclusion can be drawn that the pressure in closing cylinder becomes stable as the vortex flow in closing cylinder is eliminated and the pressure drop in the system is reduced significantly.

Keywords: catalytic cracking; circulation stripping vortex quick separator; guide plate; pressure fluctuation