Customer Cases

Coalescence Separator Filter is a high-efficiency multi-functional separation and purification equipment, integrating precision filtration, micro-droplet coalescence and two-phase separation. It can intercept solid particle impurities in the medium, break the fluid emulsified state and gather tiny liquid droplets into large ones for rapid separation. As a core equipment for industrial medium purification, it is widely applied to the deep purification of oil products, chemical media, natural gas and other industrial fluids.Working principle
Preprocessing and interception
The Coalescence Separator Filter is equipped with a high-precision pre-filtration element, which is made of gradient porous materials such as glass fiber, metal mesh and composite filter paper. It can intercept solid impurities, suspended solids and fiber impurities in the fluid with high efficiency according to the actual filtration requirements. This step can avoid the impurities from covering the surface of the subsequent coalescence element and interfering with the coalescence effect, and also reduce the formation of stable emulsified liquid by impurities, laying a solid foundation for the subsequent demulsification and coalescence of micro-droplets.

Coalescence process
After the impurity-removed fluid flows through the coalescing filter element, the tiny dispersed liquid droplets in the medium are adsorbed on the surface of the coalescing fiber under the action of surface tension. Relying on the hydrophobic/oleophilic or oleophobic/hydrophilic selective wettability of the special coalescing filter material, the adsorbed micro-droplets stay on the fiber surface and continuously collide and merge with other droplets in the process of fluid flow. The multi-layer gradient structure design of the coalescing filter element makes the droplets undergo repeated collision and coalescence in the layer-by-layer flow process, and the particle size increases step by step until the droplets form large-size liquid droplets that can be separated by gravity.
Separation and sedimentation
The large liquid droplets formed by coalescence enter the separation filter element area, and the separation filter element has the opposite wettability to the coalescing filter element, which realizes the efficient two-phase separation of the medium and the large droplets through the difference of material surface properties. Driven by the density difference between the liquid droplets and the base medium, the large liquid droplets break away from the fluid flow under the action of gravity, and settle to the dedicated liquid collection chamber at the bottom of the equipment. The liquid level gauge in the equipment monitors the liquid level of the collected droplets in real time, and the operator can discharge the collected liquid regularly through the automatic or manual drain valve to complete the whole separation and purification process.
Structural composition
Coalescing filter chamber
It is the core functional chamber of the equipment, which is equipped with replaceable coalescing filter elements of different specifications. The internal reasonable flow channel design ensures that the fluid fully contacts the coalescing filter material, and realizes the efficient adsorption and coalescence of micro-droplets. The chamber is made of sealed structure to avoid medium leakage and ensure the stability of the coalescence process.

Separating filter chamber
Connected with the coalescing filter chamber, it is equipped with a high-performance separation filter element, which is the key link to realize the separation of large droplets and the base medium. The internal flow field of the chamber is optimized to reduce the disturbance of fluid flow to the settled large droplets and improve the separation efficiency.
Liquid collection & discharge system
It is composed of a liquid collection chamber, a liquid level sensor, a drain valve and a connecting pipeline. The liquid collection chamber is specially designed to collect the settled large droplets, the liquid level sensor monitors the liquid level in real time to prevent the collected liquid from being carried back by the fluid, and the drain valve can realize regular or automatic discharge according to the production demand.
Pressure & flow control unit
Including pressure gauge, pressure relief valve, flow meter and regulating valve, it can monitor the operating pressure and flow of the equipment in real time, adjust the fluid flow rate according to the purification demand to match the coalescence and separation efficiency, and the pressure relief valve can protect the equipment from overpressure operation and ensure the safe and stable operation of the whole system.
Product type
Liquid-liquid Coalescence Separator Filter
It is mainly used for the separation and purification of two immiscible liquid media, and is the core equipment for oil-water separation in industrial production. It can effectively break the stable oil-water emulsion formed in the chemical industry, petroleum processing and other processes, gather the tiny water droplets (or oil droplets) in the medium into large droplets and separate them, remove water or organic oil pollutants in the liquid, and improve the purity and quality of liquid products. It is widely used in the dehydration of petroleum products such as aviation kerosene, diesel oil and lubricating oil, and the separation of chemical solvent emulsions.
Gas-liquid Coalescence Separator Filter
It is specially used for separating mist droplets and suspended liquid droplets in gaseous fluids, and can realize the deep removal of micro liquid droplets in gas. The equipment can efficiently coalesce the tiny liquid droplets in the process gas into large droplets that can be settled by gravity, and separate them from the gas phase. It is widely used in the purification of process gas in petroleum, chemical industry, natural gas and other fields, such as the removal of liquid hydrocarbons and water droplets in natural gas, and the purification of industrial waste gas containing liquid mist.
Product Features
High-efficiency separation
Adopt high-quality special coalescing and separation filter materials, with precise gradient structure design, which can efficiently capture micro-droplets with a particle size of ≥0.3μm in the medium, and the coalescence and separation efficiency is as high as 99.99%. It can quickly break the emulsified state of the fluid, realize the deep separation of the medium, and significantly improve the purity and quality of the purified product.
Stable and durable
The main body of the equipment is made of high-quality carbon steel, 304/316L stainless steel and other corrosion-resistant materials, which can resist the corrosion of acidic, alkaline and organic media in harsh working environments. The coalescing and separation filter elements are made of high-strength imported fiber materials, with good wear resistance and pressure resistance, and the equipment can run stably for a long time under continuous working conditions, with a long service life.
Easy maintenance
The equipment adopts a modular design of filter elements, and the coalescing and separation filter elements are all quick-change structures, which are easy to disassemble and replace without complex professional tools. The overall structure of the equipment is simple and clear, the daily operation only needs regular monitoring of pressure and liquid level, the daily maintenance workload is low, and the maintenance and replacement cost of spare parts is economical, which reduces the overall operation cost of the enterprise.
Wide applicability
It can be widely applied to petroleum, chemical industry, natural gas, food processing, water treatment, electric power and other multiple industries, and can adapt to the purification treatment of various media such as oil products, chemical solvents, natural gas, edible oil, industrial wastewater and turbine oil. The equipment can be customized with different specifications, filtration precision and structural forms (vertical/horizontal) according to the actual production needs such as medium properties, flow and separation requirements, to meet the personalized separation and purification needs of different customers.
Application area
Petrochemical industry
It is the core purification equipment in the petrochemical production process, which is used for crude oil dehydration and desalination, deep purification of aviation kerosene, diesel oil and lubricating oil, removal of water and solid impurities in chemical raw materials and solvents, etc. It can effectively remove harmful substances in the medium, improve the quality of petrochemical products, and avoid the corrosion and blockage of downstream production equipment by impurities and water, thus protecting the normal operation of the production process.
Natural gas industry
It is widely used in the whole process of natural gas extraction, gathering and transportation, processing and purification. It can separate liquid hydrocarbons, water droplets and solid particle impurities in natural gas, prevent the formation of hydrates in natural gas pipelines, avoid pipeline corrosion and blockage, and effectively improve the calorific value and purity of natural gas, ensuring the safe and efficient transportation and use of natural gas.
Food and beverage industry
Adopt food-grade filter materials and structural design that meets food safety standards, and be used for refining edible oil, clarifying fruit juice and vegetable juice, filtering beer and wine and other food and beverage production processes. It can remove solid impurities, suspended solids and free water in raw materials, improve the clarity and taste of food and beverage products, and extend the shelf life of products on the premise of ensuring food safety.
Water treatment industry
It is used for the purification treatment of industrial wastewater, oil-containing sewage, and the pretreatment of seawater desalination. It can efficiently separate oil droplets, suspended solids and other pollutants in water, realize the separation of oil and water in sewage, reduce the pollutant content in water, and achieve the goal of purifying water quality. The treated water can be recycled for industrial production, which improves the utilization rate of water resources and meets the environmental protection emission standards.
Electric power industry
It is used for the dehydration and impurity removal of industrial oil such as turbine oil, hydraulic oil and transformer oil in thermal power, hydropower and wind power plants. It can remove micro water droplets and solid impurities in the oil, ensure the good lubrication and insulation performance of the oil, protect the power generation and transmission equipment such as steam turbines and transformers from wear and short circuit, and ensure the safe and stable operation of the power system

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