化工学报2025，Vol.76Issue(3)：1288-1296,9.DOI:10.11949/0438-1157.20240943
原油储罐重质沉积物超声波空化微射流清洗实验及数值模拟
Experimental and numerical simulation of ultrasonic cavitation microjet cleaning of heavy deposition in crude oil storage tank
摘要
Abstract
The mechanism of ultrasonic cavitation microjet cleaning for heavy crude oil deposition is unclear.The clean effects of microjet flow on depositions lack quantitative characterization.A simulation model is developed for cleaning heavy depositions using ultrasonic cavitation microjet impact.The cleaning mechanism and rules of ultrasonic cavitation microjets on depositions are investigated through numerical simulations and experiments.The results indicate that the effects of the microjet caused the formation of circular pits on the surface of the depositions.Expansive cracks appear inside the sediment and at the wall adhesion,which promotes the separation of the sediment.After ultrasonic cavitation experiments,non-uniform cavitation pits appeared on the surface of the depositions,with pit diameters following a GEVⅡ distribution.The diameter and depth of pits on the surface of depositions exhibit linear increases with ultrasonic pressure.The effect of ultrasonic pressure on the depth of pits is significantly greater than its impact on the diameter.The ultrasonic power has been increased from 100 W to 300 W,resulting in an elevation of the ultrasonic pressure from 100 kPa to 200 kPa.The experimental findings demonstrate a rise in the average cavitation pit diameter from 6.10 μm to 7.38 μm,and an increase in the average depth from 1.18 μm to 3.46 μm when subjected to duration of 60 s under the ultrasonic cation.Similarly,the diameter of the pit is increased from 9.60 μm to 9.80 μm,the average depth is increased from 1.42 μm to 3.89 μm in the numerical simulation.关键词
石油/沉积物/超声波/空化/微射流/清洗/数值模拟Key words
petroleum/deposition/ultrasonic/cavitation/microjet/cleaning/numerical simulation分类
能源科技引用本文复制引用
贾文龙,肖欢,冷翔宇,黄巧竞,刘程玮,吴瑕..原油储罐重质沉积物超声波空化微射流清洗实验及数值模拟[J].化工学报,2025,76(3):1288-1296,9.基金项目
国家自然科学基金面上项目(52274065,52372344) （52274065,52372344）
