In order to reduce the fine particles in the underflow when the hydrocyclone is used to treat coalbed gas fracturing Flow-back fluids, a V-shaped outlet hydrocyclone was designed. Internal flow field of two hydrocyclones was simulated by RSM (Reynolds stress model) and Mixture model. The study shows that the V-shape outlet hydrocyclone can reduce concentration of the underflow particles with a diameter of 2.5 μm to 4.1%, which is 5.29 times lower than that of the ordinary hydrocyclone, and the particle concentration of 10 μm is reduced by 55.17%. In the internal flow field, the maximum pressure value of the V-shaped outlet hydrocyclone is 59.61% lower than that of the ordinary one. Compared with the ordinary hydrocyclone, the maximum negative pressure of V-shaped outlet hydrocyclone is reduced by a factor of 2.1. The maximum value of the tangential velocity in the semi-freedom vortex zone at the V-shaped outlet is 28.32% lower than that of the ordinary structure; the maximum of the axial velocity in the forced vortex zone is 40.03% higher than that of the ordinary one; the radial velocity of the V-shaped structure is reduced by 1.5 times as compared with the ordinary structure.
Numerical Simulation of Separation Mechanism in V-Shaped Outlet Hydrocyclone for Coalbed Gas Fracturing Flow-Back Fluids
Lect. Notes Electrical Eng.
International Workshop of Advanced Manufacturing and Automation ; 2020 ; Zhanjiang, China October 12, 2020 - October 13, 2020
2021-01-23
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
A Numerical Study of the Flow Characteristics and Separation Efficiency of a Hydrocyclone
Online Contents | 2018
|A Numerical Study of the Flow Characteristics and Separation Efficiency of a Hydrocyclone
Springer Verlag | 2018
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