Filter element is a professional term with filtering and purification function. In order to purify the resources of the original fluid and the simple device for separating resources, there are mainly gas-liquid separation, solid-liquid separation, exhaust dust filtering, and environmental protection. Now the filter element is mainly divided into: Stainless steel filter element, copper filter element, titanium filter element, Hastelloy alloy, plastic filter element and other materials; mainly used in oil filtration, air filtration, water filtration, etc., as well as machinery, electronics, petroleum, chemical, transportation, and other fields.
?The filter element separates solid particles in liquid or gas, or makes different material components fully contact, speeds up the reaction time, can protect the normal operation of the equipment or the cleanness of the air, when the fluid enters the filter element with a certain specification filter, its impurities are Block, and clean fluid flows out through the filter element. The liquid filter element makes the liquid (including oil, water, etc.) clean the contaminated liquid to the state required for production and life, that is, to make the liquid reach a certain degree of cleanliness.
The air filter element makes the polluted air clean to the state required for production and life, that is, to make the air reach a certain degree of cleanliness.
Filter element material
Paper filter
Chemical fiber filter element: glass fiber, metal fiber sintered felt, polypropylene fiber, polyester fiber
Mesh filter element: stainless steel mesh
Line gap filter
Installed in the filtration equipment, the components used to separate substances are divided into many types according to the material and purpose. Metal filter element, activated carbon filter element, air filter element, etc.
Sintered felt
Depth in line with filter material
Industry Standard
JB-T 7218-2004 Cartridge type pressurized liquid filter element
JB-T 5087-1991 internal combustion engine oil filter paper filter element
GBT 20080-2006 hydraulic filter element
HG/T 2352-1992 Wire-wound filter element for magnetic pulp filtration
HY/T 055-2001 Folding cartridge type microporous membrane filter element
JB/T 10910-2008 Oil-gas separation filter element for general oil-injected rotary air compressor
JB/T 7218-1994 cartridge pressure filter element
JB/T 9756-2004 internal combustion engine air filter paper filter element
Folding air filter
Air filter element is also called air filter cartridge, air filter, style and so on. Mainly used for air filtration in engineering locomotives, automobiles, agricultural locomotives, laboratories, aseptic operation rooms and various precision operation rooms.
Folded 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. The fibers randomly form a three-dimensional microporous structure in space. The pore size is distributed in a gradient along the flow direction of the filtrate, integrating surface and deep layers. , Fine and fine filtration in one, can intercept impurities of different particle sizes. 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.
Folded wire wound filter element
It is refined by finely 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 dilute density of the yarn during winding, filter elements of different precision can be made, which can effectively remove suspended solids and particle impurities of various liquids, and have a high purification effect on various liquids.
Folding and folding microporous filter element
The foldable microporous filter element is a precision filter device made of polypropylene (Polypropylene) thermal spray fiber membrane, nylon (Nylonb) polytetrafluoroethylene (PTEE) microporous filter membrane, etc. as the filter medium. It has a small volume and a large filtering area. The advantages of high precision. 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 connector is of three types commonly used internationally: 222 connector, 226 connector, and flat mouth. The products have undergone strict and complete testing before leaving the factory to ensure stable product performance.
Folded activated carbon filter
There are two types of activated carbon filter products: compressed activated carbon filter and 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. The filter ensures 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.).
Folded double section filter
Last section: Polypropylene melt blown filter element accuracy 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; methylene blue value (mg/g)>120
Folding ceramic filter
Since the ceramic filter element is made of pure natural physical materials, there will be no secondary pollution during the use of the water purifier, and it is not like a pure water machine.
Ceramic filter
Ceramic filter
In this way, all the minerals that are not contained in it are removed. It will retain the beneficial minerals in the water, while effectively removing mud, sand, bacteria, rust, never clogging, long service life, excellent filtering effect and other advantages. At the same time, it is not afraid of clogging and can adapt to The water quality is very bad. At present, the ceramic filter element with the highest filtration accuracy in the world is the dual control membrane ceramic filter element with an average pore size of 0.1μm. The water filtered by the filter element can be drunk without boiling, which fully meets the national direct drinking water standard.
Folded 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 positions that absorb positive ions. When the resin is in the nascent 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 and out of the water softener, so that the water softener sends out the 'soft' water. Finally, all the resin exchange positions are occupied by calcium and magnesium and can no longer work.
Folded titanium rod filter
The titanium rod filter element has excellent properties such as corrosion resistance, high temperature resistance, high strength, easy filtration accuracy, and easy regeneration; the titanium filter element is formed by forming titanium powder and sintering at high temperature, so the surface particles are not easy to fall off; the use temperature in the air It can reach 500~600℃; it is suitable for filtration of various corrosive media, such as: filtration of hydrochloric acid, sulfuric acid, hydroxide, sea water, aqua regia, and chloride solutions such as iron, copper, and sodium. It has excellent mechanical properties and can be machined such as cutting and welding. It has high compressive strength and internal pressure damage strength up to 2MPa or more; its filtration accuracy is easy to ensure, even when working under high temperature and high pressure, the aperture will not be deformed. Its porosity can reach 35~45%, the pore size distribution is uniform, the dirt holding capacity is large, and the regeneration method is simple, and it can be reused after regeneration.
Folded RO reverse osmosis filter element
Filter element with RO reverse osmosis membrane. Reverse osmosis technology: The original text of reverse osmosis is REVERSE OSMOSIS, which is a collection of scientists from the United States National Aeronautics and Space Administration, with government support, spent billions of dollars, after years of research. The principle of reverse osmosis is to apply a pressure greater than the natural osmotic pressure on the raw water side, so that water molecules reverse osmosis from the higher concentration side to the lower concentration side. Because the pore size of the reverse osmosis membrane is much smaller than hundreds or even thousands of times that of the case viruses and bacteria, all kinds of viruses, bacteria, heavy metals, solid solubles, polluting organics, calcium and magnesium ions, etc. cannot pass through the reverse osmosis membrane. , So as to achieve the purpose of water softening and purification.
Folding stainless steel filter element
Stainless Steel filter (Stainless Steel filter)[1] has very good filtration performance, and can exert uniform surface filtration performance for the filter particle size of 2-200μm. The main filter material adopts multi-layer stainless steel sintered mesh with a filtration accuracy of 0.5 -200μm, its dimensions can be processed according to user requirements.
Features of stainless steel filter element:
1 Good filtration performance, uniform surface filtration performance for filtration particle size of 2-200μm;
2 Good corrosion resistance, heat resistance, pressure resistance and wear resistance;
3 The stainless steel filter element has uniform and precise filtration accuracy;
4 The flow rate per unit area of ??the stainless steel filter element is large;
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, oil field pipeline filtration; fuel oil filtration equipment, engineering machinery equipment; water treatment industry equipment filtration; pharmaceutical and food processing fields; rated flow 80-200l/min working pressure 1.5-2.5pa filter area (m2) 0.01- 0.20 Filtration 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, and can also be used for chemical liquid filtration, with a precision of 100um. The filter element is stainless steel round microporous mesh.
It is suitable for pre-processing and post-processing systems in the electronics, petroleum, chemical, pharmaceutical, food and other industrial sectors. Further purify water with low suspended impurities (less than 2~5mg/L).
Folded corrugated filter element
Filter material: The main filter material used is stainless steel woven mesh and stainless steel fiber sintered felt. Features: Conducive to ultra-low temperature, high temperature, and high pressure;
Good porosity;
Less pressure loss;
Higher machinability;
Sterilization filtration for air purification and water treatment;
Used in high temperature and high viscosity fluids;
Display the lowest pressure difference;
It can be used again after backwashing and washing.
Application industry: fiber, film, plastic Polymer, pharmaceutical, food industry, paint industry, excellent corrosion resistance, durability, heat resistance,
High temperature exhaust gas treatment field.
Folding oil filter element
Various 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.
Folding hydraulic oil filter
The 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.
Folded and folded filter element
Product Features:
Huamem membrane stack is composed of polypropylene ultra-fine fiber membrane and polypropylene non-woven fabric supporting diversion layer. It is a deep-layer filter core folded structure, with a large membrane filtration area and large flux. Low pressure difference, strong dirt holding capacity and long service life. There are a variety of filtering precisions to choose from, and the application is wide. Good chemical compatibility, suitable for filtering strong acids, strong alkalis and organic solvents. The hot-melt welding technology is processed and formed without any chemical glue, no leakage, and no secondary pollution.
Application field
1. Reverse osmosis RO system pretreatment
2. Acid, alkali and chemical organic solvent filtration
3. High-purity water pretreatment in the semiconductor and electronics industries
4. Filtration of mineral water, wine and juice
5. Oilfield reinjection water filtration
Material structure
1. Membrane material: polypropylene (PP)
2. Diversion support layer: polypropylene (PP)
3. Housing/center rod/end cover material: polypropylene (PP)
Operating conditions
1. Maximum pressure difference
(1) Forward -75PSI(5.1Bar)@20℃
(2) Forward -25 PSI(1.7Bar)@80℃
(3) Reverse -30 PSI(2.0Bar)@25℃
2. The recommended pressure difference for filter element replacement @1.5 Bar-2.0Bar
3. Maximum working temperature: 80℃
4. Sterilization: 121℃ online steam sterilization, 20 minutes each time, 5 times available, 85℃-95℃ hot water disinfection
Standard sizes
1. Filter area: 0.5㎡/10″
2.Outer diameter: 69mm
3. Nominal length: 5', 10', 20', 30', 40'
4. Nominal accuracy (unit: um): 0.1, 0.2, 0.45, 0.65, 1, 3, 5...
Interface form
1, 215, 220, 222, 226, thread type M30, thread type M36, etc.
2. Fin type, flat head type, triangular fin type, plane type
Folded melt blown filter element
Performance characteristics
First, take polypropylene as the raw material and wind the continuous polypropylene long fiber produced by the melt blown process
Second, the filtration accuracy is high, the flow rate is large, the structure is uniform, the dirt holding capacity is large, and the service life is long
Third, it has good chemical compatibility, without any additives, and the fiber is not easy to fall off
Fourth, widely used and cheap
Application
HCMS melt blown filter element can be used for pre-filtration, security filtration of various pure water systems, food, beverage, drinking water filtration, solvent, acid, alkali filtration, boiler water filtration, oil filtration
Product Features
Outstanding chemical compatibility, suitable for filtering strong acids, strong alkalis and organic solvents
· The filter membrane is a pleated deep-layer filtration, with a large membrane filtration area
· Low pressure difference, strong dirt holding capacity and long service life
· There is a wide selection of filter precision
Purify the air: filter out the smallest impurity particles while meeting the air intake to protect the engine;
Reduce noise: effectively reduce the noise when the engine sucks in air;
Save fuel: it can save 10% of fuel;
·Scope of application: vacuum coating, machinery, optical disc, metallurgy, petroleum, chemical, paper, food, medicine, electronics, electric power, ceramics, water diversion, printing and dyeing, sugar, refrigeration equipment and other fields.
Application field
Pharmaceutical industry: pre-filtration of various antibiotics and other liquid medicines
· Food and beverage industry: filtration of alcohol, mineral water and drinking water
Petroleum industry: oilfield water injection filtration
Electronic industry: high-purity water pre-filtration
Chemical industry: filtration of various organic solvents, acids and lyes
Metallurgical industry: used for the filtration of hydraulic systems of rolling mills and continuous casting machines and filtration of various lubricating equipment.
Textile industry: Purification and uniform filtration of polyester melt in the drawing process, protection and filtration of air compressors, degreasing and dewatering of compressed gas.
Technical performance
Filter accuracy: 0.1um0.2um0.45um1um3um5um10um20um30um50um
· Filter element length: 5' 10' 20' 30' 40'
· Filter element diameter: 69mm83mm131mm
Inner diameter of filter element: 28mm~40mm
· Trial PH value: 1-12
· Maximum working temperature: ≤80℃ 0.1Mpa
· Maximum working pressure: 0.3Mpa at 50℃
· Maximum back pressure difference: 0.2Mpa at 25℃
· Maximum disinfection temperature: 120℃ for half an hour each time
Detailed introduction
Sign farewell
A look at the filter material
The main filter material of the air filter element is filter paper. Nowadays, the filter paper of the filter element mainly uses domestic paper and imported paper. Both domestic and imported paper have good filtering performance. The inferior filter paper used in the counterfeit filter element cannot prevent dust from entering the engine, thereby affecting the engine normal work. Generally, the color of the filter paper of the genuine filter element is uniform, and the paper surface is relatively flat; while the color of the filter paper of the inferior filter element is not uniform, the paper surface is hairy, and the texture is poor.
Two look at the colloid of the filter element
Nowadays, the structure of the filter element is generally composed of filter paper and rubber, and the gel quality of the real filter element is also different. The rubber of the genuine filter element is good and elastic, while the rubber of the counterfeit filter element is soft and poor in texture. The easier way to distinguish is to fold the air filter element in half. After loosening, the genuine filter element will quickly return to its original shape, while the counterfeit filter element does not adhere well to the filter paper due to the rubber texture problem, and the middle part of the fold is obvious.
In addition: some signs can be passed, such as imported striped lines, and of course some domestic ones can be copied, but it is different if you observe carefully.
Everyone knows that the first stage of the water purifier is a PP filter element, also called melt blown PP. The material is polypropylene (PP material). The main function is to filter various harmful impurities with a diameter of more than 1 micron in the tap water, organic pollutants, and mineral impurities. Because the material has no sewage function, its service life is generally 3-6 months, so it is necessary to replace the filter element regularly, otherwise it will cause secondary pollution problems, and the water quality cannot be guaranteed. According to the scope of use, it can be divided into 10 inches to 40 inches, which can be customized according to special requirements, density, length and weight. First look at the density. According to the difference of the pore size, PP can be divided into 1um and 5um, and the weight is about 100g and 110g. The pore size cannot be recognized by the naked eye, and the weight and touch can be distinguished by hand. The quality of the filter element directly affects the quality and filtering effect of the water purifier, so the commonly used 1 micron and 5 micron are generally the best choice. At the same time, because the PP cotton filter element is generally used in the first three stages, it must be replaced regularly, otherwise it will affect the service life of the RO membrane and the TDS value of the effluent quality.
Is the PP cotton filter element harder or softer? In fact, the density is higher and it is firm, which means that the compressibility is also high, the filtration accuracy and the service life are longer, and the soft PP is under high water pressure or use time After it grows longer, it may disperse, causing the filtration degree to decrease, and affect the normal operation of the RO machine. Therefore, the quality and price of PP can fundamentally improve the quality of the entire water purifier.
Folding service life
Depending on the raw materials used, the service life of the filter element will vary. With the extension of use time, impurities in the water will block the filter element, and the activated carbon filter element will be saturated with adsorption. Therefore, generally speaking, the PP filter element needs to be replaced in 3 months, and the activated carbon filter element needs to be replaced in 6 months. Since hollow fibers cannot be cleaned, they are generally placed at the back end of PP cotton and activated carbon for use, otherwise they are more likely to be clogged, and they need to be replaced after 1-2 years for sterilization at the end of water purification equipment. The ceramic filter element can generally be used for 10-12 months, and a good ceramic filter element can be used for 3-5 years or even longer.
Folding replacement signal
1. Water production is too slow: whether the filter element of the pre-filter or the reverse osmosis membrane is blocked;
2. Water is made too fast (a full bucket is made in less than an hour): the reverse osmosis membrane is damaged;
3. Poor taste: the life of the rear activated carbon filter element has come; the removal rate of RO membrane is less than 75%: the life of the reverse osmosis membrane has come.
The calculation formula of membrane removal rate is: RO membrane removal rate = (raw water TDS value-pure water TDS value) * 100% / raw water TDS value
Folding maintenance
1. The hydraulic oil filter element is the core part of the filter. The filter element is a combination of special materials, which is a vulnerable part and requires special protection and maintenance.
2. When the filter in the system has been working for a period of time, the hydraulic oil filter element in the filter has intercepted a certain amount of contaminated impurities. At this time, the pressure increases, the flow rate will gradually decrease, and the sender will remind the alarm. At this time, it needs to be timely To clean up the impurities in the filter element, the filter element needs to be cleaned.
3. In the process of cleaning the filter element, we must pay attention to the hydraulic oil filter element not to be deformed or damaged. Otherwise, it can not be used again, so as not to affect the filtration efficiency, thereby causing damage to the entire system.
Folding replacement method
Water will usually overflow during this process. Please prepare cleaning utensils such as a basin or towel:
a) Turn off the electroplating ball valve and pressure barrel ball valve;
b) Open the gooseneck faucet to drain the residual water in the pipe;
c) After the water no longer flows out, use the filter housing wrench to open the filter housing with the filter element;
d) Take out the old ge filter element and install a new filter element of the same specification;
e) Coat the black 'O' ring above the filter housing with a lubricant such as petroleum jelly, and then put the 'O' ring into the groove in the filter housing.
f) Tighten the filter housing in a vertical manner to avoid displacement of the 'O' ring.
g) Open the electroplating ball valve and pressure barrel ball valve.
Car filter paper
Automotive filter paper is one of the main materials for the production of automotive filters. It is also known as three automotive filter papers, namely air filter paper, oil filter paper, and fuel filter paper. It is a filter paper impregnated with resin, which undergoes partial pressure on the filter production line. Filters are made by pressure wave, wave, and solidification processes. They function as the 'lung' of automobile engines on internal combustion engines such as automobiles, ships, and tractors to remove impurities in air, oil and fuel, and prevent engine The wear of the parts extends its service life. There are many filter materials for filters, such as cellulose, felt, cotton yarn, non-woven fabric, metal wire and glass fiber, etc., which are basically replaced by resin-impregnated paper filter elements. With the rapid development of the world automobile industry, As a filter material, filter paper has been widely accepted and adopted by the world's automotive filter industry. As early as 2004, the United States has listed automotive filter paper as one of the ten most promising paper types in the world.
