Design and Numerical Simulation Analysis of an Integrative Gas‐Liquid‐Solid Separation Hydrocyclone

Abstract

Normally, a gas-liquid-solid separation includes both degassing and desanding processes, which means a relatively higher facility investment and larger energy consumption. Based on an inner-cone hydrocyclone developed before, an integrative degassing and desanding hydrocyclone was designed. Its design idea and process are described in detail. By means of a hollow inner cone (IC), the separated liquid enters into the cone through holes on it and then flows to the liquidphase outlet. Due to integrative separation and tangential solid outlet, the separator has a more compact size. Simulation analysis of the effect of IC diameter and IC height on separation performance was carried out. Results indicate that with a larger IC diameter the gas content in the solid outlet decreases, while as the IC height rises, the gas content in the liquid outlet increases.

Analysis of Hydrocyclone Geometry via Rapid Optimization Based on Computational Fluid Dynamics

“…Hydrocyclones have been broadly implemented in various industries due to several advantages, such as their simple geometrical structure, low operating costs, small footprint, easy maintenance, and high separation efficiency 1–4. Industrial applications of hydrocyclones include mineral extraction 5, chemical engineering 6, 7, coal and petroleum extraction and refinement 8, 9, pulp processes 10, environmental protection and waste management 11, 12, agriculture and aquaculture 13, 14, food processing 15, biotechnology 16, material science and nanotechnology 17, 18, and thermal energy recovery 19.…”

Performance of a Degassing Cyclone with Main and Subsidiary Chambers

“…There are two basic types of passive degassing cyclones, i.e., swirl vane separators which swirling flow results from guide vanes [8] and cyclonic separators which is an evolution from hydrocyclone mounted with a tangential inlet, with two outlets provided at the top and the bottom. The examples of cyclonic separators include gas-liquid cylindrical cyclone separator (GLCC) [9], inner-cone hydrocyclone [10,11], bubble eliminator with two tangential inlets [12], and planar cyclone for bubble separation [13]. According to an experimental report about planar degassing cyclones [13], only 0.075-0.323 s is needed to separate 100-μm bubbles with a cyclone diameter of 50 mm and tangential inlet velocity ranging from 3.7 to 7.4 m s -1 .…”

Numerical Simulation of Performance of an Air–Water Separator with Corrugated Plates for Marine Diesel Engines

“…Processes 2020, 8, 1617 2 of 11 Zhao et al [1] and Bogodage et al [2] used single particle dynamics model to numerically calculate the moving track and separation efficiency of water droplets in the corrugated plate and pointed out that the deflection angle of the corrugated plates should not be greater than 45 • . Li et al [3] calculated droplet trajectory phenomenon and separation efficiency and found that the droplets flow velocities at different inlets corresponded to a critical particle size and the critical value decreased with the increase of the inlet droplets velocity.…”