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水力旋流器按应用类型分为脱油型和脱水型两种。脱油型水力旋流器在杏南九中转站应用的工艺流程：由三相分离器来水进入缓冲罐，其出水经增压泵增压后进自行设计的聚结器。聚结器起到对混合液中的油滴进行聚结、兼并的作用，以利于旋流器的分离。然后进水力旋流器进行处理，处理后的水去深度水处理系统，污油则去污油池。由于缓冲罐起到一定的重力沉降作用，因此进入水力旋流器的污水含量基本可稳定在 １０００ｍｇ／Ｌ以下，一般在４００ｍｇ／Ｌ左右。
Hydrocyclones according to the type of application is divided into two types of de-oiling and dehydration. Dehydration hydrocyclone in apricot Ninth transfer station application process: water from the three-phase separator into the buffer tank, the water booster booster pump after its own design coalescer. The coalescer plays the role of coalescing and merging the oil droplets in the mixture to facilitate the separation of the cyclone. Then into the hydrocyclone for processing, the treated water to a depth of water treatment system, sewage sludge is decontaminated. As the buffer tank plays a role in gravity sedimentation, so into the hydrocyclone sewage content can be basically stabilized at 1000mg / L or less, usually about 400mg / L.