Oil-water separation filter

2019年12月02日

  
Oil-water separation filter
 
 
The oil-water separation filter is mainly designed for oil-water-liquid separation. It contains two types of filter, namely: coalescing filter and separation filter.
 
For example, in an oil dewatering system, after the oil flows into the coalescing separator, it first flows through the coalescing filter element. The coalescing filter element removes solid impurities and coalesces extremely small water droplets into larger water droplets. Most of the coalesced water droplets can be separated and removed from the oil by their own weight and settled in the water collecting tank. The oil then flows through the separation filter element. Because the separation filter element has good lipophilic and hydrophobic properties, the water is further separated, and finally, clean, anhydrous oil flows out of the coalescing separator.
 
The oil first enters the lower part of the filter housing through the inlet pipe, and then flows from the outside to the inside of the filter core. At this time, the coarser particles will immediately settle down and be discharged by the drain valve, and the smaller particles will be intercepted by the filter. Finally, the clean oil is collected by the filter element tray and flows out of the coalescing separator through the outlet pipe. As the amount of processed oil increases, the pollutants deposited on the filter element will cause the pressure difference of the coalescer to rise. When the pressure difference rises to 0.15Mpa, it means that the coalescing filter element has been blocked and should be replaced. The oil flows from the oil inlet of the coalescing separator into the primary tray, and then flows into the primary filter element. After filtering, demulsification, the growth of water molecules, and coalescence, impurities are trapped in the primary filter element and coalesced. Water droplets settle in the sedimentation tank, and the oil enters the secondary filter element from the outside to the inside, collects in the secondary tray, and flows out from the outlet of the coalescing separator. The material of the secondary filter element is hydrophobic, and the oil can pass smoothly. The free water is blocked outside the filter element, flows into the sedimentation tank, and is discharged through the drain valve.
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