Influence of the bottom outlet diameter of gas-liquid cylindrical cyclone on its separation performance
In order to enhance the separation performance of gas-liquid cylindrical cyclone(GLCC),structural parameters and operating conditions of the classic gas-liquid separator were modified.Using the software Fluent,based on the Eulerian multiphase flow model and Multi-Fluid VOF model,numerical simulations of the flow field within the separator were conducted through custom functions.The liquid phase mass flow rate at the bottom outlet was monitored to analyze the variation of GLCC separation efficiency under different inlet gas-liquid phase flow rates and bottom outlet diameters.Research findings indicate that reducing the bottom outlet diameter is beneficial for improving the separation efficiency of GLCC.When the bottom outlet diameter is 18 mm,the separation efficiency is higher,consistently exceeding 80%.The oscillation of the liquid phase mass flow rate at the bottom outlet exhibits periodic changes,and the periodic flow behavior of the gas-liquid two-phase flow with different bottom outlet diameters is closely related to the variation of the liquid phase mass flow rate at the bottom outlet.Therefore,by monitoring the liquid phase mass flow rate at the bottom outlet,dynamic capturing of the gas-liquid two-phase flow regime in GLCC can be achieved,thereby enhancing the separation efficiency of GLCC.
gas-liquid cylindrical cycloneMulti-fluid VOF modeldiameter of the bottom outletgas-liquid flowflow pattern
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