新型气液分离闪蒸撬分液侧内流场模拟研究

为进一步探究气液分离闪蒸撬分液侧内部构件对其分离性能的影响规律,提高分液侧分离效率,基于标准k-ε模型和欧拉-欧拉方法,建立了分液侧流体流动特性分析模型,对分离腔内流场进行了数值模拟,将结果与文献实验数据进行了模拟对比,验证了模型的准确性,优化分析了分液侧内部构件结构参数对分离性能的影响.分析了分离腔内连通管、捕雾器、...

Numerical Study on the Internal Flow Fluid of the Gas-Liquid Separation Unit in a New Skid-mounted Device with Gas-Liquid Separation and Flash Distillation

In order to optimize the structural parameters of gas-liquid separation unit in a new skid-mounted device with gas-liquid separation and flash distillation, a model is established to analyze the separation characteristics of that. The influence of structural parameters is investigated for the separation characteristics of gas-liquid separation unit by the CFD method. The results show that the demister thickness, the number and location of pipe between the separation chamber and the cylinder to accumulate the liquid, the angle and depth of deflector in separation chamber is main parameters to impact the separation characteristics of gas-liquid separation unit. It is slightly impacted by the demister diameter and baffle plate depth. The separation efficiency of gas-liquid separation unit will reach to 98% when the demister thickness is 60mm-120mm. At the same time,the liquid in separation chamber can be discharged smoothly into the cylinder when the number of pipe between the separation chamber and the cylinder is more than two and it is distributed in the liquid and gas regions of the separation chamber, respectively. The liquid flow quite slowly can be also discharged smoothly into the cylinder when the angle and depth of deflector is 90°-135° and 385mm-647mm, respectively. Therefore, the separation efficiency is very high for the gas-liquid separation unit. The above results will provide the theoretical guidance for the optimization and design of structural parameters on gas-liquid separation unit in a new skid-mounted device with gas-liquid separation and flash distillation.