Abstract: In order to investigate the effect of internal coalescing structural parts on the separation performance of oil-water gravity separator,the experiments and simulation studies are performed on mismatched corrugated plate based on theorical analysis.Comparison studies are carried out for the particle size distribution changes before and after the corrugated plate,separation efficiency,the flow field inside the corrugated plate and the distribution of oil droplet concentration.The experimental results show that with a small plate height,large oil droplets occupy a low share in the water phase at the outlet and there is a good separation efficiency between oil and water,but it will increase the risk of blockage of corrugated plate packing.Opening holes on corrugated plates can effectively improve the separation effect between oil and water and shorten the residence time of oil droplets.The greater the inlet flow,the worse the separation effect.The RNG k-ε model and the discrete phase model are used to perform numerical simulation on mismatched corrugated plate.The simulation results show that smaller hole can promote the uniformity of the flow field in the plate and provide the channel for the mass exchange between the plates,so that the large oil droplets after coalescence can be floated through small holes to the upper ripple plate to shorten the floating lift distance of oil droplets.The concentration distribution of oil droplets is concentrated after opening corrugated plates,meaning better separation effect.
梁龙, 张旺宁, 白志山, 杨晓勇, 罗会清, 张斌. 重力式油水分离器内聚结构件分离性能的实验与模拟研究[J]. 现代化工, 2018, 38(11): 211-215.
LIANG Long, ZHANG Wang-ning, BAI Zhi-shan, YANG Xiao-yong, LUO Hui-qing, ZHANG Bin. Experimental and simulation study on separation performance of coalescing structural parts within oil-water gravity separator. Modern Chemical Industry, 2018, 38(11): 211-215.
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