Abstract: Based on comparison of the new oil separator and the structure of the traditional one, new physical model was established. Due to the same mechnical properties of oil and water and different density of oil and water, two- phase fluid in the separation o f the cylinder generated by high- speed rotation velocity changed; oil and water would be able to be separated a t all nodes, therefore the solubility of each node changed. However, if the distribution of speed at each node was known, the solubility fie ld could be solved. According to the characteristics of a mathematical model, the solubility field could be solved, which could provide theoretical basis for management, application and maintenance o f the new oil separator.

Key words: new oil separator, velocity field, solubility field, node

摘要： 对比了新型分油机与传统分油机结构,建立了新型分油机的物理模型。由于油、水二相流体在分油机的分离 筒中所受力的性质相同,但油、水密度不同,因此二相流体在分离筒中产生的离心力大小则不同,油、水必能会在各 节点上进行分离,从而使得油、水在每一节点上溶度产生变化,但油、水二相流体必须符合质量连续,只要知道各节 点的速度分布,就可求解溶度场。根据这一特点建立数学模型,求解溶度场。为轮机员今后在船上管理、使用、维 护新型分油机提供理论依据。

关键词: 新型分油机, 速度场, 溶度场, 节点