摘要
为了研究气液两相流在卧式螺旋管内的摩阻特性及其影响因素,得到一个适用范围大、准确性更高的摩阻计算公式。采用室内实验的方式,测量出不同压力、流量、干度条件下气液两相流在螺旋管内摩阻压降,并采用两相摩擦乘子ф^2LO来处理实验数据,描述不同条件下的摩阻压降。实验结果表明质量流量对螺旋管内摩阻的影响较小,螺旋管内摩阻随着压力的增大而减小,在干度小于0.35时,螺旋管内摩阻随着干度的增大而增大,当干度大于0.35时,螺旋管内摩阻随干度增大而变化不大。并且通过量纲分析以及线性回归的方法推导出气液两相流在螺旋管内的摩阻计算公式,并与实验数据进行对比分析,拟合效果较好。
In order to study the friction characteristics of gas-liquid two-phase flow in the horizontal spiral tube and its influencing factors, a formula for calculating the friction resistance with a large application range and higher accuracy was obtained. The indoor experiment was used to measure the frictional pressure drop of the gas-liquid two-phase flow in the spiral tube under different pressure, flow and dry conditions, and the two-phase friction multiplier ф^2LO was used to process the experimental data to describe the friction pressure drop under different conditions. The experimental results showed that the mass flow had little effect on the friction inside the spiral tube. The friction inside the spiral tube decreased with the increase of pressure. When the dryness was less than 0.35, the friction of the spiral tube increased with the increase of the dryness. When the dryness was greater than 0.35, the friction inside the spiral tube did not change much with the increase of the dryness. And through the dimensional analysis and linear regression method, the formula for calculating the friction of gas-liquid two-phase flow in the spiral tube was deduced and compared with the experimental data, the fitting effect was better.
作者
冯金禹
田龙
刘嘉康
李世昌
FENG Jin-yu;TIAN Long;LIU Jia-kang;LI Shi-chang(School of Petroleum Engineering,Northeast Petroleum University,Heilongjiang Daqing 163318,China;PetroChina Xinjiang Oilfield Company,Xinjiang Karamayi 834000,China;Xinjiang Oilfield Company Baikouquan Oil Production Plant,Xinjiang Karamayi 834000,China;Hydrogeological Exploration Bureau,CNACG,Handan Hebei 056000,China)
出处
《当代化工》
CAS
2019年第7期1452-1455,共4页
Contemporary Chemical Industry
关键词
螺旋管
摩擦阻力
气液两相流
流动特性
Spiral tube
Frictional resistance
Gas-liquid two-phase flow
Flow characteristics
