各大油田中的油水分离设备多为重力式油水分离器,聚结构件是影响油水分离效率的主要因素。从实际使用经验上看,板式聚结构件不仅可以显著提高油水两相的分离效果,而且占据设备的有效分离体积极小。不同类型的板层具有不同的效果特点,若逐一开展试验,研究费用过高、周期过长,无法满足生产需要。近年来,计算流体力学已成为工程设计中的重要工具,同时也成为很多学科的科研方法。因此,通过对一种油水分离聚结构件不同结构形式进行数值模拟计算,对比分析计算结果,得到最优的结构参数,并应用到新型油水分离设备中,现场比对试验显示,新型油水分离设备的分离效率提高了2.7~2.8倍。研究结果对设备油水分离效率的提高具有重要意义。

The main factor influencing the efficiency of oil-water separation is the coalescing internals. Based on practical experience, the separation effect of oil-water phase is improved, and the internals occupy a small space within the effective separation section of the equipment. Different types of plate have different effects. If physical tests are to be carried out one by one, the research costs would be too high and the duration is too long, which cannot meet the production needs. In recent years, computational fluid dynamics has become an important tool in engineering design and is a scientific research method in many engineering fields. Therefore, in this paper, through numerical simulation calculation of different structural forms of oil-water separation coalescing internals, and analysis and comparison of the calculation results, the optimal structural parameters are obtained and applied to the new oil-water separation equipment. Field comparison test shows that the efficiency of the new oil-water separation equipment is multiplied by 3.7~3.8. This research can provide significant reference and guidance for the research on improvement of oil-water separation efficiency.