作　　者： ; ; ; ; ;

机构地区： 西安交通大学能源与动力工程学院动力工程多相流国家重点实验室

出　　处： 《石油机械》 2006年第5期18-21,共4页

摘　　要： 自污水处理实现大罐沉降分离技术以来,由底部进液的水洗处理已成为污水处理主要的工艺过程。由于该技术具有较明显的先进性,近年来逐渐被引入到原油脱水设备中。考虑液滴变形的影响,认为水洗流场中液滴的运动轨道呈空间曲线;并采用液滴聚并理论对液滴的运动特性进行了分析,获得了液滴的初始和终端浮升速度模型,该模型更加符合油水分离的实际过程,对水洗流场的结构优化,合理选择设备的运行和结构参数,保证设备的运行效果具有较大理论价值和实际意义。 Since the application of the technique of large tank settlement separation for sewage treatment, the process of water washing with water entering from the bottom has become the major sewage treatment technique. Because it has obvious advantages, it has been gradually introduced into the equipment for crude oil dewatering. Because of the influence of liquid drops, it is considered that the motion track of liquid drops in the water-washing flow field is of space curve. The theory of drop accumulation and combination is used to analyze its motion characteristics and a model is established for its initial and terminal buoyancy lifting velocities. The model is more consistent with the actual situation of the separator. It is of great significance and theoretical value for structural optimization of water washing flow field, rational selecting the operation and structural parameter of equipment and insuring the effect of equipment operation.

关 键 词： 水洗流场 液滴 碰撞 涡旋场 油水分离

领　　域： [轻工技术与工程] [化学工程]