Wuxuan 350-word 1 Franny water purifier originated in France, and 1870 was established in Paris, France. Franny water purifier was established at the beginning, mainly in the domestic water purifier industry. 1890 set up the commercial water purification division, strengthened the purification in seawater desalination and sewage treatment, and became the only water purifier manufacturer in 19 century. Franny was awarded the brand family of water purification industry by the International Brand Alliance and the World Brand Network, and produced the first international water purifier, the first international kitchen water purifier, the first international ultrafiltration membrane and the first international RO membrane water purifier manufacturer. Franny water purifier is an internationally renowned high-end brand. In 20xx, Franny Water Purifier was recommended by various water purifier manufacturers in Shenzhen as the governing unit of China Water Purifier Industry Association. Micro-film U-PVC technology developers and technology owners, to create a classic brand of national household appliances industry. In 20xx, Franny U-PVC technology was praised as the revolution of international water purification industry, which completely changed the water purification technology. The advantage of U-PVC microfilm is higher filtration accuracy, which is 1000 times of that of PVC process and PAN process. U-PVC technology is 40 years ahead of the existing technology in the water purifier industry and will not be obtained by peers in the next 40 years. Franny U-PVC technology is known as the international gold medal technology for water purification. U-PVC microfilm is superior to PVC and PAN. Mirror smooth inner wall technology makes the membrane hole uniform, hydrophilic, acid and alkali resistant and compressive, and its service life is as long as 6 years. Since its establishment, Franny has owned more than 100 patented technologies every year and applied for patent technology protection in more than 30 countries around the world. Frannie has 1300 patents and inventions, covering every detail of water purifier products from the technical materials of water purifier filter element to bayonet switch. Franny's technical advantage has become the high-end reason for international consumers to recognize Franny.
Water purifiers are also called water purifiers and water purifiers. It is a water treatment equipment for deep filtration and purification of water quality according to the requirements of water use. Water purifier usually refers to a small household purifier.
Its technical core is the filter membrane in the filter element device. At present, the main technologies come from ultrafiltration membrane, RO reverse osmosis membrane and nanofiltration membrane!
Water purifiers can be divided into gradual tightening water purifiers and self-cleaning water purifiers according to pipeline design grades. The traditional water purifier is a gradually tightening water purifier. Its internal pipeline is designed as a loose filter element at the front and a tight filter element at the back. It consists of PP melt-blown filter element, granular carbon, compressed carbon, RO reverse osmosis membrane or ultrafiltration membrane, and post-activated carbon. Usually, these five stages are connected end to end. Trapped and deposited in the filter element, it needs to be disassembled and cleaned manually regularly to ensure the normal operation of the machine. The other is a more advanced self-cleaning water purifier. Two channels are designed in the machine, and a washing water channel is added. When the washing water used as ordinary domestic water passes through the channel, it washes the filter element in the machine, especially the raw water side of the membrane filter element, thus realizing the self-cleaning function. At the moment when the flushing faucet is turned on and off, that is, the water flowing out of the head section and the tail section will be used to quickly discharge the trapped dirt in time. This structure is reasonable in design, which saves the trouble of manual disassembly and cleaning and avoids the secondary pollution of the mechanism itself.
However, consumers should pay attention to identification. Self-cleaning water purifiers are different from automatic sewage purifiers, computer automatic flushing water purifiers and automatic backwashing water purifiers seen in the market. The former is self-cleaning, which means that all the filter elements in the machine have certain self-cleaning function; The latter only cleans one of the filter elements, not the whole machine. Generally speaking, the self-cleaning water purifier is equivalent to installing a garbage disposal device on the pipeline, which can clean up the dirty things at any time without leaving them in the machine. The traditional non-self-cleaning water purifier is equivalent to putting several trash cans in the room, and the dirt is usually temporarily stored in the machine, so it is necessary to regularly discharge the sewage and often disassemble, clean and replace the filter element. The function of water purifier is to remove floating objects, heavy metals, bacteria, viruses, residual chlorine, sediments, rust, microorganisms and so on. In the water. It has high-precision filtering technology. The first stage of five-stage filtration technology of household water purifier is called PP cotton filter (PPF), the second stage is called granular activated carbon (UDF), the third stage is called precision compressed activated carbon (CTO), and the fourth stage is called reverse osmosis membrane or ultrafiltration membrane. The water purifier is not only suitable for areas with serious tap water pollution, but also can filter residual chlorine in conventional tap water and improve the taste of water. In August, 20xx, the General Office of the National Health and Family Planning Commission issued the "Regulations on the Management of Labeling Instructions for Drinking Water Hygiene and Safety Products", which clearly stated that acidic water, alkaline water, active water, small molecular water, functional water, energy water and oxygen-rich water should not be marked in the labels and instructions of wading products.
5 articles with 350 words and 3 household water purifiers are drinking devices for advanced treatment of tap water. Household water purifiers began in the 1950s, became popular in the 1970s, and have continued to this day. Especially in the 20th century, disinfection by-products were first discovered in tap water in the United States. As a device for family self-protection, many families in America began to install and use it.
1, PP cotton filter water purifier: a single-cylinder water purifier equipped with various PP cotton filters. The price of this machine is generally low, but the filter element is easy to block, the replacement frequency is high, and the filtration accuracy is not very high. This machine is only used for preliminary filtration of water, and cannot be directly drunk.
2. Composite sintered activated carbon water purifier: the main filter medium is activated carbon rod. Activated carbon rods are usually made of activated carbon powder with different particle sizes and bonding materials at high temperature. [2]
Features: Due to the porous structure of activated carbon powder (it is estimated that the specific surface area of 3-5g activated carbon powder is equivalent to the size of a standard American football field), the fired activated carbon rod is very dense, and the removal efficiency of odor, odor, residual chlorine, volatile organic compounds and other pollutants in tap water is very high. Activated carbon rods produced by some manufacturers can even filter spores and cysts according to the American NSF53 standard, and can retain minerals in water, without the need to use additional filtering media such as microfiltration and ultrafiltration.
In addition, in the firing process of activated carbon rods, other filter media can be added through a special process formula, so that the activated carbon rods have more functions of removing volatile organic pollutants (VOC), heavy metals and other indicators.
Due to the excellent performance of composite sintered activated carbon rods, these products can be directly used in places with high filtration requirements such as drinking and cooking.
This kind of products can also be integrated with medical-grade folding sterilization membrane, which can achieve an absolute filtration accuracy of 0.2 micron, effectively filter more than 99.99% of microorganisms such as pathogenic bacteria and spores in water, and ensure that drinking water is cleaner. [2]
The commonly used standards or specifications of composite sintered activated carbon water purifier are People's Republic of China (PRC) * * *, Hygiene, Safety and Function Evaluation Specification of Drinking Water Quality Processors of Ministry of Health [3] and NSF/NSF/ANSI 42 and NSF/ANSI 53 of National Health Fund of the United States. [4]
3.RO reverse osmosis pure water machine: The water purifier can completely remove harmful substances and minerals in water, and the purified water is pure water. The pressure of water is not enough for its working pressure, so a booster pump is needed, which requires electricity and pressure. One of its major disadvantages is that there is a lot of waste water, and generally about 50% of the waste water should be filtered out. Its purification cost is high and water yield is low, so it can only be used to solve the drinking water problem.
Central water purifier is a large domestic water treatment equipment, which originated from 1832 and is suitable for central water purification in the whole house. Its core technologies include microfiltration (PP fiber cotton and activated carbon), ultrafiltration (hollow fiber), KDF, ACF, ceramic filter element and so on.
water filter
It is a kind of water treatment equipment. Central water purifiers can be divided into two categories.
The central water purifier with adsorption, replacement and filtration as its main components includes activated carbon KDF and so on.
Central water purifier based on physical interception filtration: ultrafiltration membrane and hollow fiber membrane.
Quanwu central water purifier
Suitable for central water purification in the whole house. The whole house water purifier has a large flow, so it can be said that there is also a central whole house water purifier. The whole house water purifier is the core of the water purification scheme, and then two faucets with different water quality are installed to meet the requirements of different water use situations in the kitchen. The whole house water purifier effectively purifies the water quality through the high-precision purification process of ultrafiltration membrane, and removes many harmful substances that may be contained in the water, such as sediment, rust, bacteria, suspended solids, algae, macromolecular organic matter and so on. Therefore, clean water is suitable for kitchen drinking water.
Family central water purifier
Installed in the main water inlet pipe, it can filter large particles such as sediment and rust in tap water. Imported core filter materials such as KDF and coconut shell granular activated carbon can absorb chlorine in tap water and harmful substances such as abnormal color and odor in water, thus improving the taste of purified water.
Household central water softener
Installed on the main water inlet pipe to fully soften the domestic raw water. Long-term use of soft water can also effectively maintain water-using equipment such as water heaters, prolong the service life of equipment, and make clothes soft and clean, and make skin shiny and delicate.
Five 350-word 5 water purifier filter elements are selected and generally filled with KDF and activated carbon. The filter element is used to purify the polluted water to the state required by production and life, even if the water reaches a certain cleanliness. Remove solid particles from water, kill bacteria and filter out harmful chemical components.
The filter element of water purifier has different types according to the different uses of filtered water:
Water purifier filter element activated carbon filter element
There are two types of activated carbon filter products:
Compressed activated carbon filter element, bulk activated carbon filter element.
1. The compressed activated carbon filter element is made of coal-based activated carbon and coconut shell activated carbon with high adsorption value as filter materials and sintered and compressed with food-grade adhesive. The compressed activated carbon filter core is wrapped with a layer of non-woven fabric with filtering function inside and outside, which ensures that the carbon core itself will not lose carbon powder. Soft nitrile rubber gaskets are arranged at both ends of the carbon core, so that the carbon core can be put into the filter cartridge with good sealing performance.
2. Bulk activated carbon filter core puts the required activated carbon particles into a special plastic shell, and the end caps are welded on the two end faces of the shell by welding equipment, and non-woven fabric filters for filtering are respectively placed at both ends of the shell to ensure that carbon powder and black water will not fall off when in use. According to the needs of customers, the end cover of the shell can be made into different types of connection ports. Interface methods are: flat pressure type and pipeline type.
Water purifier filter element PP filter element
PP filter element is also called PP meltblown filter element. Melt-blown filter element is made of polypropylene superfine fiber through hot melt entanglement. The fibers randomly form a three-dimensional microporous structure in space, and the pore diameters of the dimensional pores are distributed in a gradient along the filtrate flow direction, which integrates surface, deep layer and fine filtration, and can intercept impurities with different particle sizes. The precision range of this filter element is 0.5-65438±000 μm m, and its flux is more than 65438 0.5 times that of the same precision peak chamber filter element. It can be equipped with different types of end cover connectors to meet the needs of various engineering installations.