化工学报2019，Vol.70Issue(7)：2564-2573,10.DOI:10.11949/0438-1157.20190213
多旋臂气液旋流分离器压降特性试验
Multi-spiral gas-liquid vortex separator pressure drop characteristics test
摘要
Abstract
To strengthen the gas-liquid centrifugal separation process and realize the high-efficiency separation of gas-liquid cyclone in the large-diameter separator, a multi-rotor gas-liquid vortex separation equipment was designed, which provided a new design for gas-liquid separation and large-scale design. It can provide a new idea to design for large-scale gas-liquid separator. The pressure drop characteristics are investigated in a large scale cold-separator model. The static pressure drop between the inlet and outlet was measured at different velocities of the swirling arm under pure air flow conditions. The velocities of the swirling arm ranged from 5.65 to 16.95 m/s, which can cover the operating conditions of the industry gas liquid separator. The experimental results show that the pressure drop and the velocity of the swirling arm presence a square relationship. The dimensionless standard deviation of the static pressure drop is maintained within 2%. Furthermore, the total pressure drop includes three parts, i.e., loss in inlet friction, loss in the separation space, and loss in outlet pipeline. It is found that the pressure drop occur in the separation space is the largest. A model between the pressure drop of each part and the velocity head of the swirling arm was then given. The resistance coefficient of this rig is 16, it has no significant increase compared to common cyclone separators. The total pressure drop is closely related to the velocity of swirling arm. The change of total pressure drop is slight after feeding liquid. The forecast equation of the resistance coefficient was obtained based on the experimental of four similar structures with different sizes. Compared to real resistance coefficient, the predicted results error is less than 0.5%.关键词
离心分离/压降/模型/预测/气液两相流Key words
centrifugal separation/pressure drop/model/prediction/gas-liquid two-phase flow分类
化学化工引用本文复制引用
ZHOU Wen,WANG Kangsong,E Chenglin,LU Chunxi..多旋臂气液旋流分离器压降特性试验[J].化工学报,2019,70(7):2564-2573,10.基金项目
国家自然科学基金中石油联合基金重点项目(U1862202) （U1862202）
