Detailed explanation of the working principle and application of coalescing separator

In the process of petroleum refining or mechanical processing, since the raw materials themselves contain water (or water enters during the process), the medium will inevitably be mixed with water. The presence of water will have an adverse effect on the process effect, process equipment and product quality. Therefore, the coalescing separator plays a vital role.

The coalescing separator breaks through the single filtering mode of traditional filters, integrates filtering and dehydration, and can filter out various tiny particles, moisture, fibers and suspended matter in the fuel. It is an ideal oil purification equipment.

Product structure and working principle

The coalescing separator is mainly designed for liquid-liquid separation. It contains two filter elements, namely the coalescing filter element and the separation filter element. It is also equipped with accessories such as a drain valve, a drain valve, a differential pressure gauge, a safety valve, and a heating device.

In the oil dewatering system, after the oil flows into the coalescing separator, it first flows through the coalescing filter element to filter out solid impurities and coalesce extremely small water droplets into larger water droplets. Most of the coalesced water droplets can be separated from the oil by their own weight and settle into the water collection tank. Then the oil flows through the separation filter element. Since the separation filter element has good lipophilic and hydrophobic properties, it further separates water. Finally, clean and water-free oil flows out of the coalescing separator.

The main function of the coalescing separator is to separate oil from water. The water content of the incoming oil is 400-600ppm, and the water content after filtration is ≤100ppm.

Coalescing separators are suitable for aviation fuel, gasoline, kerosene, diesel, liquefied petroleum gas, low-viscosity hydraulic lubricating oil, turbine oil, airports, oil depots, city gas, mine gas, liquefied petroleum gas and other fields.