Principle and Material Structure of Aggregation and Separation Filter Element

Aggregation and separation filter element

Aggregation and separation are two main types of filter elements designed for oil-water separation: aggregation filter elements and separation filter elements.

In the oil removal system, the oil flows into the aggregator separator and first passes through the aggregator filter element, which filters out solid impurities and aggregates tiny water droplets into larger water droplets.

The vast majority of the aggregated water droplets can be separated from the oil by their own weight and settle into the water collector. Then, the oil flows through the separation filter element, which further separates the water due to the excellent hydrophobicity of the separation filter element, and clean, water-free oil flows out of the aggregator separator.

Working principle of aggregation and separation filter element

When the filtering medium flows into the aggregation filter element, the impurity removal layer of the filter element filters the medium with high precision of 1-25μm, and then enters the aggregation layer.

The aggregation layer enlarges and aggregates the water molecules in the medium to form larger water droplets, which fall off under the action of gravity. Some water droplets flow towards the outlet due to the flow rate effect, and then a oil-water separation filter element is needed for separation and dehydration.

The separation filter element is made of special fluorine-containing hydrophobic material processed in a special way. When oil passes through the separation filter element, water droplets are blocked outside the separation filter element but the oil can pass through and be discharged from the outlet.

Material and structure of aggregation and separation filter element

The aggregation and separation filter element contains fiberglass threads, which can cut off the water in the oil and release it, and the filter element has a strong adsorption force to absorb water on the filter layer of the aggregation filter element, forming large water droplets, which settle under the action of gravity and then separate the oil.

The aggregation and separation filter element is mainly composed of two materials

• Polyester fiber aggregation and separation filter element material is usually made of synthetic polyester fibers and has good compatibility with various fluids. The filter element is rolled into a multi-layer spiral structure, and each layer uses fibers of different properties to achieve the expected filtering accuracy by controlling parameters such as the shape, size, thickness, and density of each layer of fiber.

• The glass fiber aggregation and separation filter element is made of high-density gradient glass fibers and designed as a single-piece tube structure to reduce damage and leakage. The filter element surface is treated with hydrophobic and oleophobic properties and can meet various precision grade requirements.