Types of precision filter elements

Types of precision filter elements

The filter element of the precision filter is the heart of the filter, as the name implies, the filter element. The main principle of the filter element is also the main principle of the filter. It is the purification equipment needed to purify the original ecological resources and the reuse of resources. The filter element is generally used in filtration industries such as oil filtration, water filtration, and air filtration. Remove a small amount of impurities in the filter medium, which can protect the normal operation of the equipment or the cleanness of the air. When the fluid passes through the filter element with a certain precision in the filter, its impurities are blocked, and the clean fluid flows out through the filter element

　　The filter element can purify the contaminated medium to reach the clean state required by our production and life, with a certain degree of cleanliness. Filter elements are used in a wide range, ranging from industrial production such as steel smelting, power production, ocean purification, etc., to drinking water treatment, domestic garbage utilization, automobile fuel filtration, bicycle lubricant filtration, etc. , Clean technology in our lives uses filters and filter elements.

　　 Classification

　　The filter element is divided into: air filter element, water filter element, oil filter element according to the medium used.

　　According to the material of the filter element, it is divided into: paper filter element, chemical fiber filter element, metal mesh filter element, metal powder sintered filter element, PP filter element, line gap filter element, activated carbon filter element, etc.

　　The hydraulic system is divided into: suction filter, pipeline filter, and return oil filter.

　　The water filter element includes wire wound filter element, PP melt blown filter element, pleated filter element, large flow filter element, and activated carbon filter element.

　　一、PP filter element

PP filter element is also called PP melt-blown filter element. The melt-blown filter element is made of polypropylene ultrafine fibers by thermal fusion and entanglement. The fibers of the filter element randomly form a three-dimensional microporous structure in space. Deep, precise and precise filtration is integrated, which can intercept impurities of different particle sizes.

　　PP cotton filter element features: the accuracy range of the filter element is 0.5-100μm, and its flux is more than 1.5 times that of the peak room filter element of the same accuracy. Different types of end cap connectors can be configured to meet the needs of various engineering installations.

　　 2. Wire wound filter element

　　 is refined by winding textile fiber yarn with good filtering performance on a porous skeleton. The yarn materials include polypropylene fiber, acrylic fiber, absorbent cotton fiber and so on. By controlling the tightness and thinness of the yarn during winding, filter elements with different precisions can be made.

　　Features: It can effectively remove suspended solids and particulate impurities in various liquids, and has a high purification effect on various liquids.

　　Three, folding filter element

　　The foldable microporous filter element is a precision filter device made of polypropylene thermal spray fiber membrane, nylon polytetrafluoroethylene microporous filter membrane, etc. as the filter medium. It has the advantages of small size, large filtering area and high precision.

　　Features: The filtering accuracy can range from 0.1μm to 60μm. The end cover of the filter element is sealed and the overall structure is connected by hot melt bonding. The filter element joints are of three types commonly used internationally: 222 joints, 226 joints, and flat ports. The products have undergone strict and complete testing before leaving the factory to ensure stable product performance.

　　Four, activated carbon filter

　　 Activated carbon filter products are divided into two categories: compressed activated carbon filter, bulk activated carbon filter.

　　1. The compressed activated carbon filter element uses coal-based activated carbon and coconut shell activated carbon with high adsorption value as the filter material, and is sintered and compressed with a food-grade binder. The inside and outside of the compressed activated carbon filter element are respectively wrapped with a layer of non-woven fabric with filtering effect to ensure that the carbon core itself will not drop the carbon powder. The two ends of the carbon core are equipped with soft nitrile rubber gaskets to make the carbon core into the filter cartridge Has good airtightness.

2. Bulk activated carbon filter element. Put the required activated carbon particles into a special plastic shell, use welding equipment to weld the end caps to the two ends of the shell, and put the two ends of the shell into the non-woven fabric for filtering. Filter to ensure that the carbon core will not drop carbon powder and black water during use. According to customer needs, the shell end cover can be made into different types of connection ports. Interface methods are: flat pressure type, pipeline type (models: 4042, 4044, 4046, etc.).

　　 Five, double section filter element

　　The previous section: Polypropylene melt blown filter element with a precision of 5μm 　　Next section: Granular activated carbon filter element with built-in activated carbon 170g 　　Material: ABS, PP

　　 Length: 250mm

　　 Outer diameter: 70mm

　　 flux: 8L/S total flux: 6-8T

　　Activated carbon index: strength>90; iodine value (mg/g)>950;

　　 Six, resin filter element

　　 resin is a porous, insoluble exchange material. There are millions of tiny plastic balls (beads) in the resin filter element of the water softener, all of which contain many negative charge exchange sites that absorb positive ions. When the resin is in a new state? These charge exchange sites are occupied by positively charged sodium ions. When calcium and magnesium pass through the resin storage tank, they come into contact with the resin beads and replace the sodium ions from the exchange position. The resin preferentially binds the stronger charged cations, and the charge of calcium and magnesium ions is stronger than that of sodium ions. Replace the sodium cations and then pass down the resin "bed, out of the water softener, so that the water softener sends out "soft" water. Finally, all the resin exchange positions are occupied by calcium and magnesium, and can no longer work.

　　 Seven, stainless steel filter element

　　Stainless steel filter element point:

　　1. Good filtration performance, uniform surface filtration performance for 2-200um filtration particle size.

　　 2. Good corrosion resistance, heat resistance, pressure resistance, and abrasion resistance;

　　3, the stainless steel filter element has uniform and precise filtration accuracy;

　　4. The stainless steel filter element has a large flow per unit area;

　　 5. The stainless steel filter element is suitable for low temperature and high temperature environment; it can be used again after cleaning, no need to replace.

　　Application: Petrochemical industry, oilfield pipeline filtration; fuel oil filtration equipment, engineering machinery equipment; water treatment industry equipment filtration; pharmaceutical and food processing fields;

Rated flow rate 80-200l/min Working pressure 1.5-2.5pa Filter area (m2) 0.01-0.20 Filter accuracy (μm) 2-200 μm Filter material Stainless steel woven mesh Stainless steel perforated mesh is used to remove water from the front stage of the heavy oil combustion system. It can be used for chemical liquid filtration, the precision is 100um, and the filter element is stainless steel round microporous mesh.

　　 8. Oil filter element

　　 A variety of specifications and different materials filter elements, with an accuracy of 0.5 ~ 80 m, can meet the processing needs of different industries and various oil products.

　　 Nine, hydraulic oil filter

　　Hydraulic oil filter element is mainly used to filter the oil in the hydraulic system to remove particles and rubber impurities in the hydraulic system to ensure the cleanliness of the hydraulic oil, so that the hydraulic system can operate normally.