倾斜管柱气液两相流持液率计算方法研究

Study on Calculation Method of Liquid Holdup of Gas-Liquid Two-phase Flow in Inclined Tube Column

倾斜管柱气液两相流持液率的计算方法在石油工业中具有重要地位。采用Beggs-Brill相关式、Mukherjee-Brill相关式、Eaton相关式和杜克勒Ⅱ相关式计算了倾斜管柱的持液率,通过实验手段测量相同气液体积流量下,不同角度的持液率数据,分析了上述4种计算式的准确性,发现Beggs-Brill相关式比较准确。对Beggs-Brill相关式进行了分析,发现当其他条件一定时,其计算的持液率关于管柱倾斜角度具有一定的对称性,对称轴为50°,倾斜角度为90°时和10°时计算的持液率相等,结合所测量的实验数据,做出曲线发现在倾斜角度在45°到60°之间持液率最大,倾斜角度为90°的持液率与为10°的持液率比较接近,同时持液率随角度的变化具有一定的对称性。

The calculation method of liquid holdup of gas-liquid two-phase flow in inclined tube column plays an important role in petroleum industry. In this paper, Beggs-Brill correlation, Mukherjee-Brill correlation, Eaton correlation and Dukler II correlation formula were used to calculate liquid holdup. Through experiments, the liquid holdup in inclined tube column with different angles under the same gas liquid volume flow rate was tested, and the accuracies of the four formulas were analyzed. The results showed that Beggs-Brill correlation was more accurate. The Beggs Brill correlation were analyzed. It＇s found that when the other conditions are the same, the calculated liquid holdup has symmetry with the tube column tilting angle, symmetry axis is 50 degrees, calculated liquid holdups of tilt angle of 90 degrees and 10 degrees are equal. Combined with the measured experimental data, the drawn curve shows that liquid holdup between 45 and 60 degrees inclination angle is the maximum, and the liquid holdup of 90 degree is close to the liquid holdup of 10 degrees, on the whole, the liquid holdup has a certain symmetry with the change of the angle.