机械科学与技术2018，Vol.37Issue(2)：193-198,6.DOI:10.13433/j.cnki.1003-8728.2018.0205
利用压力损失补偿方法提高气力提升装置性能研究
Study on Improving the Performance of Air Lift Device by Pressure Loss Compensation Method
摘要
Abstract
Based on the multiphase flow pattern and pressure loss mechanism of vertical pipe lifting,the pressure loss compensation coefficient of pipe diameter is proposed according to the pressure loss compensation method.The physical model of the air lift device was established based on the theory of simulated air lift.The new type air lift pipeline structure was designed.The influence of pressure loss compensation coefficient on mass flow rate of air lift under different air flow rate and immersion rate was calculated.Based on this analysis,the water flow rate and lifting efficiency of the gas lift equipment under different compensation coefficients were analyzed.The results show that the diameter of the pipeline has influence on the pressure loss,and the larger the pipe diameter is,the smaller the pressure loss is.The reasonable pressure compensation coefficient can reduce the pressure loss of the pipeline by changing the shape of the pipeline structure,and reduce the pressure loss of the pipeline during the lifting process,thus changing the position of the phase change point of the multiphase flow pattern and improving the efficiency of air lift device.Mass flow rate is the very parameter to measure the ability of air lift device,when the pressure compensation coefficient is positive,the pressure loss of the multiphase flow pattern is reduced and the water flow rate of the air lift device is improved.When the pressure compensation coefficient is increasing from 0 to 4 °,the water flow rate of air lift starts to improve and tends to stabilize.When the air flow rate is 4.2 kg / h and 2.5 kg / h,the water flow rate increases to a higher value when the pressure compensation coefficient is 2.5° ～ 3 ° and 0.7° ～ 1 °,and the maximum efficiency of air lift increases by 14.6％ and 9.5％.关键词
气力提升/效率/压力补偿系数/管道结构设计Key words
air lift/efficiency/pressure loss compensation coefficient/structural design分类
矿业与冶金引用本文复制引用
汪朝晖,杨霄,高全杰..利用压力损失补偿方法提高气力提升装置性能研究[J].机械科学与技术,2018,37(2):193-198,6.基金项目
国家自然科学基金项目(51405352)资助 （51405352）
