除油水力旋流器溢流口结构试验研究

Test research of the structure of deoiling hydrocyclone overflow outlet

为探索溢流口结构和尺寸对除油水力旋流器分离性能的影响 ,设计出三种新型溢流口结构———涡流屏蔽罩式、涡流探测管和涡流屏蔽罩组合式以及实心涡流屏蔽管式溢流口。利用马尔文激光粒度仪 ,在室内模拟试验装置上进行了分离性能测试 ,并采用粒级效率和压力降综合评价了三种结构溢流口的分离性能。测试和分析结果表明 ,溢流孔径越小 ,旋流器分离效率越高 ,压降也略有增大 ;涡流屏蔽罩式、涡流探测管和涡流屏蔽罩组合式溢流口可以降低压降 7%左右 ,而分离效率基本不变 ;

To investigate the influence of the structure and size of the overflow outlet on the separation performance of a deoiling hydrocyclone, three kinds of new overflow outlet are designed, i.e. the vortex shielded cap (VSC) type, combined VSC and vortex detection tube type, and solid vortex shielded tube (SVST) type. By using Marvern laser hondrometer, the separation performance of the hydrocyclones with the above overflow outlets was tested on the simulation test table in the lab. The results of the test and analysis show that, (1) the smaller the diameter of the overflow outlet, the higher the separation efficiency; (2)the VSC type and the combined type overflow outlet can reduce the pressure drop by about 7%; (3)the SVST type overflow outlet can lower the pressure drop evidently.