聚结构件形式对管式油水分离器油出口含油率的影响

Influence of the form of coalescers on the oil content of the oil outlet of tubular oil-water separator

为了对比不同结构形式聚结构件对管式油水分离器油出口含油率的影响规律,为工程设计选型提供技术支持,通过CFD方法分析了正V形斜板、倒V形斜板、传统斜板和蛇形背向折板4种不同聚结构件作用下的浓度场和油出口含油率,并探究了正V形聚结构件在单一条件下的最适宜结构参数。结果表明,在所研究的流速(0.05~0.35 m·s^(-1))内,4种聚结构件中正V形构件具有最好的油出口含油率,蛇形背向折板与倒V形斜板位列第2、3位,传统斜板最低;随着进口流速的增大,4种聚结构件油出口含油率均相应降低,其中传统斜板下降速度最快,正V形斜板与蛇形背向折板下降最慢,相差不大,而倒V形斜板下降速度居中;利用控制变量法确定了正V形构件与壁面间距C=10 mm、水平夹角θ=60°时油出口含油率最高。

In order to compare the effect of different coalescer on the oil content of the oil outlet of tubu-lar oil-water separator,provide technical support for engineering design and selection,the concentration field and the oil content of the oil outlet of four different coalescers of the positive V-shaped inclined plate,the inverted V-shaped inclined plate,the traditional inclined plate and the snake-shaped back folding plate were analyzed by CFD method,the best structural parameters of the positive V-shaped coa-lescer in a single condition were investigated.Results show that in flow rate under study(0.05—0.35 m·s^(-1)),the positive V-shaped component has the best the oil content of the oil outlet among the four kinds of coalescer,the snake-shaped back folding plate and the inverted V-shaped inclined plate ranked second and third,respectively,the traditional inclined plate separation has the lowest effect;With the in-crease of inlet flow rate,the oil content of the oil outlet of four kinds of coalescers decreases correspond-ingly,the traditional inclined plate drop the fastest,the positive V-shaped inclined plate and the snake-shaped back folding plate have slowest decline,have little difference,while the inverted V-shaped in-clined plate decrease speed is in the middle,the control variable method is used to determine that the oil content of the oil outlet is the highest when the distance between the positive V-shaped component and the wall is C=10 mm and the horizontal angleθ=60°.