蓬莱19-3原油水下溢油的模拟实验

发布时间：2018-03-09 06:26

本文选题：水下溢油　切入点：喷射速度　出处：《海洋环境科学》2016年06期 　论文类型：期刊论文

【摘要】：把握水下溢油时油滴粒径的分布规律是研究溢油行为和归宿的前提,也是水下溢油事故有效应急处置的重要依据。本研究采用自制的1 m×1 m×2 m(长×宽×高)的水下溢油模拟实验装置开展蓬莱19-3原油的水下溢油模拟实验,以油滴体积分布和油滴体积中值粒径为考察指标,评估了水下溢油喷口直径和喷射速度对油滴破碎形成的油滴粒径分布的影响。结果表明,不同粒径油滴体积分布总体上表现为低于100μm和高于700μm的油滴粒径体积占比较小,油滴粒径分布主要集中在100μm~700μm之间,体积比最高点位置根据喷射条件的不同而有所偏移。喷口直径保持不变时,随着喷射速度增大,小粒径油滴所占体积逐渐增大,大粒径油滴体积比减小。油滴体积中值粒径随喷射速度的增加而减小,相对体积中值粒径与喷射流量经对数变换后呈线性相关关系。本研究结果可为水下溢油行为轨迹的预测提供重要依据。
[Abstract]:It is the premise of studying the behavior and fate of oil spill to grasp the distribution law of oil droplet diameter when oil spills under water. It is also an important basis for the effective emergency treatment of oil spill accident under water. In this study, the underwater oil spill simulation experiment of Penglai 19-3 crude oil was carried out with a self-made 1 m 脳 1 m 脳 2 m (length 脳 width 脳 high) oil spill simulation device. The effects of the diameter of oil spillway and injection velocity on the particle size distribution of oil droplets formed by oil droplet breakup were evaluated with the oil droplet volume distribution and the median particle size of oil droplet volume as the indexes. As a whole, the volume distribution of oil droplets with different diameters was smaller than 100 渭 m and more than 700 渭 m, and the oil droplet size distribution was mainly between 100 渭 m and 700 渭 m. The position of the highest point of volume ratio is shifted according to the different injection conditions. When the nozzle diameter remains constant, with the increase of injection velocity, the volume of small oil droplets increases gradually. With the increase of injection velocity, the median particle size of oil droplet decreases with the increase of injection velocity. The relative volume median particle size is linearly correlated with the injection flow rate after logarithmic transformation. The results of this study can provide an important basis for the prediction of underwater oil spill trajectory.
【作者单位】：中海石油环保服务(天津)有限公司;国家海洋局第一海洋研究所;
【基金】：中国海洋石油总公司项目:消油剂水下应用研究(CNOOC-KJ 125 ZDXM 25JAB NFCY 2012-02)
【分类号】：X55

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