气携式液液水力旋流器分离性能影响因素

针对一种新型气携式液液水力旋流器进行了内部分散相液滴的受力分析,其部分旋流体由微孔材料制成。介绍了气携式液液旋流分离的基本原理、样机结构、实验工艺流程及设备。研究了不同结构参数和操作参数对分离性能的影响。通过开展实验室研究,为油田现场试验提供依据。现场试验研究表明,对于1 000 mg/L左右的聚合物驱采出污水,试验样机的最佳处理量为4.20 m3/h,最佳分流比为30%,气液体积比为0.45;试验还表明20—40μm孔径的微孔材料为最优选择。研究显示该水力旋流器具有更高的分离效率,在石油化工、环保及其他工业领域都将具有广泛的应用前景。

Influent factors study on the separation performance of the air-injected liquid-liquid hydrocyclones

Based on a new type of air-injected liquid-liquid hydrocyclone,mechanics analysis of liquid droplet inside the hydrocyclone was carried out.Part of the hydrocyclone body was made of micro-pore material.Basic separation principle of air-injected liquid-liquid hydrocyclonic separation,prototype structure,experimental technical process and facilities were introduced.The effect of different geometric parameters and operating conditions on separation performance was studied.Laboratory experiments were carried out first to provide basis for field tests.The field research indicates that for around 1000 mg/L polymer-flooding oily produced-water,the optimum flowrate is 4.20 m3/h for the testing prototype,the split ratio should be 30%;gas-liquid ratio is 0.45.It also shows that 20-40 μm micro-pore materials are optimum diameter for hydrocyclonic separation enhancement.The research indicates that the hydrocyclone has a satisfied separation effect.The hydrocyclone will have better application prospect in petrochemical,environmental field and many other industries.