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叙述了用水力旋流器处理油水中间层乳化液的现场试验情况，比较了固液分离旋流器与油水分离旋流器的异同，分析了油水中间层乳化液的成因及温度、分流比、添加破乳剂等对分离效率的影响。现场试验表明：（１）用水力旋流器分离油水中间层乳化液是可行的；（２）选取分流比的数值稍大于乳化液含油浓度可得到较高的分离效率；（３）对乳化液加温时温度控制在５０℃～６０℃较为经济；（４）在乳化液进入放流器前加入１００ｐｐｍ破乳剂，经旋流器处理再沉降后，最终可将原油含水降至５％以下。
The field experiment of hydrocyclone emulsion for middle layer of oil and water was described. The similarities and differences between the hydrocyclone and the hydrocyclone were compared. The formation of oil - water interlayer emulsion and its temperature, Add demulsifier, etc. on the separation efficiency. Field experiments show that: (1) it is feasible to separate the oil-water interlayer emulsion with a hydrocyclone; (2) a higher separation efficiency can be obtained when the value of the split ratio is slightly larger than the oil concentration of the emulsion; (3) (4) 100ppm demulsifier is added before the emulsion enters the blower, and after the cyclone treatment and sedimentation, the water content of the crude oil can be finally reduced below 5%.