Teach you how to choose a water purifier and identify the water purifier   How to identify the water purifier 1. Overview of China's water purifier industry 　　 Since 1998 , the Ministry of Health has strengthened supervision over the production of water purifiers and gradually implemented an administrative examination and approval system. The production and product quality of water purifiers have gradually been regulated. Since 2000 , the water purifier production enterprises have grown rapidly, and the water purifier industry has rapidly recovered and grown. At present, there are more than a thousand legally produced water purifiers that have obtained the sanitation licenses issued by the Ministry of Health, with annual production and sales of various types of purified water. Nearly 10 million units. Due to the large output and lower production costs, the price of water purifiers, their spare parts and consumables has also dropped significantly, making them affordable and affordable household items. At the same time, the production enterprises have strengthened quality control, product quality and service life have been greatly improved, and after-sales service has also been strengthened. Some brands of water purifiers have gained recognition and trust from users. Compared with the bottled pure water and pipeline water supply, the water purifier has the advantages of convenient use, reasonable price, fresh water quality, no secondary pollution, etc. It is popular among the residents and is used in deep purification of drinking water. The most extensive and promising approach. In developed regions such as Europe, the United States, and Japan, and in Taiwan, the use of water purifiers is very popular. However, according to the survey, the household ownership rate in Beijing, Shanghai, and Guangzhou is less than 15% , and the ownership rate of other cities is lower. However, the water quality of natural source water and municipal tap water in most parts of China is not ideal, so China's water purifiers There is a lot of room for development, and the market prospects and production potential are also very good. Last June 17, the water purifier series of national standards for the development of China's official launch, will further regulate the water purifier production and product quality, clean water purifier market, so that the law, so that every family can drink Better and more assured quality drinking water. 　　 2 , the classification of water purifiers ( 1 ) according to the function of water purification (1) General water purifier: a water purifier that removes some or all of the harmful impurities in the water; (2) Water softener: a water purifier that softens water by ion exchange with a cation exchange resin, often used in hard water areas; ( 2 ) Classification by water quality (1) General water purifier: Purify drinking water, the water quality of the effluent reaches the water purifier of GB5749-2006 "Sanitary Standard for Drinking Water Quality" , the effluent is generally not allowed to drink; but if it is sterilized by ultrafiltration, the effluent can be drunk; (2) Nano water filter : deep purification of drinking water, first through pretreatment, and then through nanofiltration, the effluent water quality reaches CJ94-1999 "drinking water quality standard" water purifier, the water can be raw; ( 3 ) Classified by water purification process According to the water purification process used by the water purifier, common water purifiers can be classified as follows: (1) Filtration + activated carbon adsorption (2) Filtration + KDF filtration + activated carbon adsorption (3) Filtration + activated carbon adsorption + microfiltration ( MF ) (4) Filtration + activated carbon adsorption + ultrafiltration ( UF ) Note: 1 The water purifier can be used for unit treatment or binary and multi-component combination treatment with various water purification processes; ( 4 ) Classification by water supply type (1) General water purifier; (2) Household central water purifier: KDF filtration + activated carbon adsorption is often used , and the water production is large. The effluent can be used for household washing, bathing, etc., but it needs to be added to the pure water machine for drinking; ( 5 ) Classification by appearance type (1) Faucet type water purifier: a small simple water purifier set on the tap; (2) Desktop water purifier: a water purifier used on a table; 　　 3 , how to identify the authenticity of the water purifier     The Chinese government stipulates that the water purifier must apply for a sanitation permit and obtain the approval before it can be produced, sold and used. Domestic water purifier manufacturers need to report to the provincial health department, the provincial health supervision office to review the application materials and the on-site inspection and inspection of the enterprise, and to collect and seal the samples, and send the samples to the provincial CDC for product safety and safety inspection. Send the inspection department of the Ministry of Health to the functional inspection of the product, report to the Ministry of Health, and pass the rigorous review procedures of the Ministry of Health's expert review committee and so on, in order to receive the sanitation license issued by the Ministry of Health. The imported water purifier must be approved by the product inspection and the expert review committee of the Ministry of Health and the approval of the import product sanitation license issued by the Ministry of Health before it can be sold. Therefore, when purchasing a water purifier, you must carefully check the health approvals carefully. (From 1998 to the present, we have assisted more than 300 water purifier manufacturers to successfully apply for the Ministry of Health Sanitary License, and companies in need can contact us. ) Now there are products on the market that are not certified (sanitary licenses, the same below), and some are labeled with "certified" to promote counterfeit and shoddy products. They often use the following methods: The first type is false evidence, that is, the fake and forged Ministry of Health approvals are usually copied after the naming of the names of other enterprises and other products and the name of the manufacturer. In this regard, the user can check the authenticity of the verification approval on the Health Supervision website of the Ministry of Health. The second type is the set of certificates, the so-called deck products. After the manufacturer has received a batch of parts, the products of other varieties, categories, specifications and models produced by the factory are applied to the batch. In this regard, when purchasing a water purifier, users should carefully check whether the product name and specification model on the approval piece are exactly the same as the actual purchased product, and if necessary, they can check the Internet. The third type is that the exhibits do not match, that is, the actual product and the sanitary approvals are identical in product name and specification, but the product materials are inconsistent with the formula and the water purification process. The production enterprises change the materials, formulas and nets in batch production. Water crafts, etc., this kind of fraud is the most difficult to identify. One is to cut corners, cancel or cut certain materials and water purification processes to reduce production costs. More is to change or add some so-called functional materials, and then promote their functions in product samples, brochures and advertising, and even advocate its "all-in-one disease." In fact, according to the regulations of the Ministry of Health, water purifiers are not allowed to add functional materials, and they are not allowed to promote other functions besides clean water. They are also not allowed to publicize any so-called therapeutic effects for treating diseases. These are illegal false propaganda. It is a fool of consumers, so don't be fooled. The Ministry of Health stipulates that products such as water mineralizers and ion water machines are not issued, and the Ministry of Health has never issued any sanitary approvals for such products. In addition, such as activated water, magnetized water, Ï€ water, spectrum water, small molecule water, etc., there is no recognized theoretical basis and strict verification scheme, there is no scientific evaluation standard and feasible measurement method, and the enterprise declares to the Ministry of Health. It is not allowed in the data and in the health approvals and accessories of the Ministry of Health. These are often the concept of hype in the promotion and sales of manufacturing companies and sellers, in deceiving and fooling consumers. In addition, there are often some “imported original water purifiers†that are selling. In fact, there are very few genuine water purifiers imported. China is a big water purifier producer, and Chinese-made water purifiers are exported to foreign countries. For those who claim to be “imported original water purifiersâ€, they must carefully check the “Import Permit for Sanitary Safety Products for Drinking Water Hygiene and Safety Products (issued by the Ministry of Health, can be verified by the Ministry of Health)â€, customs import documents, Documents or copies of the importer's inspection certificate, etc., must not be confused by counterfeit and shoddy products. 　　 4 , how to identify the pros and cons of the water purifier The water purifier is mainly composed of a filter material, an adsorbent material, a sterilization material and the like. The early water purifiers consisted only of activated carbon and ordinary non-woven filter materials; modern water purifiers were often composed of a variety of materials, and their water purification function and effect were also good. Activated carbon can adsorb and remove organic matter, colloid, color, odor, residual chlorine, etc. in water, so it is the most widely used material in water purifiers. However, after the activated carbon adsorbs organic matter, these organic substances become excellent nutrition of bacteria. In the numerous micropores of activated carbon, microorganisms such as bacteria and algae proliferate and proliferate, resulting in excessive effluent bacteria and nitrite, and the after-sales service has not kept up, etc. The reason is that China's water purifier industry was almost completely wiped out at the end of the last century. In addition to activated carbon, modern water purifiers often have membrane elements and other materials to form a water purifier to eliminate the above drawbacks of activated carbon. Microfiltration, ultrafiltration, nanofiltration, reverse osmosis membrane material, four kinds of pore sizes of 0.1-10 μ m, 0.005-0.1 μ m, 0.001-0.008 μ m, 0.0005-0.002 μ m. Therefore, from the effect of intercepting and removing impurities in water, the reverse osmosis membrane has the best water purification effect, and it can remove almost all toxic and harmful impurities in the water, including various inorganic and organic substances, such as carcinogenic, mutagenic, and metamorphic chemicals. , algae toxins, as well as bacteria, algae, viruses, heat sources, etc., which are not fully achieved by other water purifiers. The water purification performance of the water purifier can also be viewed from the following standards. The declaration materials of the water purifier manufacturer and the Ministry of Health conduct the water purifier product review. In addition to the water quality of the water purifier, the GB5749 “Sanitary Standard for Drinking Water†must be met . In addition to the (tap water standard), the general water purifier effluent must also meet the requirements of the Ministry of Health, Health and Welfare [2001] No. 161 , Annex 4A, "Sanitary Safety and Functional Evaluation of Drinking Water Quality Processors - General Water Quality Processor" The water can not be eaten by drinking water; the water of the nanofiltration water purifier must also meet the CJ94-1999 "Drinking Water Quality Standard", the water can be eaten raw, the water quality is better than the former; the reverse osmosis water purifier must also reach the Health Department [2001] No. 161 annex 4C "health and safety of drinking water quality and functional assessment of the processor specification - reverse osmosis water treatment device" requirement, the water safe to drink, make multiple spiked test detection, water quality and more Greatly better than the first two. The Ministry of Health has reviewed the water quality of all types of water purifiers and tested and judged according to these three types of standards (standards). According to this judgment, the effluent quality of reverse osmosis water purifiers is also the best. The water purifier is the final step for people to drink water. The quality of the water purifier plays an important role in human health. Therefore, the significance of purchasing a high-quality and practical water purifier is also very important. ( 1 ) Inspection of health approvals Whether domestic or imported water purifiers, it is necessary to check whether there is a sanitary approval issued by the Ministry of Health, whether the approval is within the validity period, and whether the contents of the approval documents and their attachments are completely consistent with the actual water purification process and materials of the products. For those products that claim to be imported, it is necessary to check the customs entry form and the commodity inspection certificate. ( 2 ) See the water purification process, function and effluent quality Simple water purifiers are often PP cotton + activated carbon, some also add some cheap mineralized balls to fool users, the effluent water quality can only meet the minimum standards of water purifiers in the Ministry of Health; water purification with hollow fiber ultrafiltration membrane The effluent water quality is slightly higher, but the effluent quality is still assessed by this minimum standard; the effluent water quality of the water filter with nanofiltration membrane is higher, the effluent water quality can reach the “drinking water qualityâ€; the water eliminator with reverse osmosis membrane The effluent water quality is the highest, and its effluent quality can meet the highest standards of water purifiers in the Ministry of Health. ( 3 ) Look at the quality of the materials used The same materials and components of different materials, the price difference is very large, such as plastic is all new or recycled materials; activated carbon is coconut shell charcoal, shell charcoal or cheap coal charcoal; stainless steel is 316L , 304 or 302 ? The quality and performance of the material not only determines the quality and performance of the water purifier, but also determines the quality of the effluent water and the service life of the water purifier or its components. ( 4 ) Look at manufacturing, assembly processes and appearance The water purifiers produced by the formal enterprises are beautiful in appearance, rigorous in assembly, bright in appearance and smooth in surface; while the products of small workshops are gray in appearance, rough in surface, rusted, cracked, loosely assembled, and even leaking. ( 5 ) Look at the manufacturer and product brand The manufacturer must be regular, professional, and of a certain scale. The production must have a strict quality assurance system. It must have the necessary plant, production and testing equipment, strong technical force and good production environment. It is best to produce all or most of its own. Some parts and components, the quality of the products can withstand the test and time test, can get the praise of users. Most of the water purifiers are small in scale, poor in plant and equipment, and have no technical strength. They just buy various parts for assembly, and some even do not have assembly plants. They go to other factories for OEM production, and the quality of the products cannot be controlled. Guarantee. Therefore, we should try our best to buy products of famous brands produced by formal enterprises.   Underbody Hydraulic Cylinder,Hydraulic Cylinder Jacks,Long Ram Hydraulic Jack Wantong Hydraulic Co.Ltd. , http://www.sdhydro-cylinder.com
The water purifier originated in the United States in the early 1980s and entered Shanghai in the early 1990s. China's water purifier manufacturers developed rapidly in the early 1990s, flourishing in the mid-1990s, and reached more than 800 at the end of 1996 . Since then, due to some defects in the water purifier, poor after-sales service and chaos in the water purifier market, especially the proliferation of counterfeit and shoddy products, causing adverse effects, and the rise of bottled water at that time, the water purifier industry has gone from bad to worse, production Enterprises have changed or closed down, and the whole industry has fallen into a trough.
(3) Mineralized water machine: first remove some harmful impurities by pretreatment (filtration, adsorption, etc.), and then filter through medical stone, mineralized ball, ceramic ball, etc., or add mineralized concentrate to water to make drinking water Add minerals and trace elements;
(4) Multi-function water machine (commonly known as “ion water machineâ€): first remove some harmful impurities by pre-treatment, and then through electrolysis, the generated alkaline water is used for drinking, and the acidic water is used for washing;
(5) Special water purifier for removing fluoride and arsenic: For the content of fluorine and arsenic in drinking water in some areas is too high or exceeds the standard, the content of fluorine and arsenic is reduced by adsorption or other methods to make the water suitable for drinking.
(3) Pure water machine: deep purification of drinking water, first through pretreatment, and then through reverse osmosis, the water quality of the effluent reaches GB17323 , GB17324 or the water purification device of " Determination of Hygienic Safety and Function of Drinking Water Quality Processor - Reverse Osmosis Treatment Device" The water can be eaten raw, which is the best water purifier for drinking water;
(4) Ultra-pure water machine: tap water pre-treatment, primary desalination (reverse osmosis, electrodialysis, double bed ion exchange), mixed bed ion exchange and other multi-stage treatment, water quality effluent conductivity ≦ 1 μ s / cm water purifier, It is often used in laboratories, scientific research, etc.
(5) Filtration + activated carbon adsorption + nanofiltration ( NF ) (6) Filtration + activated carbon adsorption + reverse osmosis ( RO ) (7) Filtration + activated carbon adsorption + electrodialysis ( ED ) (8) Filtration + activated carbon adsorption + electrosorption ( EST )
(9) Filtration + activated carbon adsorption + ultraviolet ( UV ) sterilization (10) Filtration + activated carbon adsorption + ozone ( O3 ) sterilization (11 ) Filtration + activated carbon adsorption + iodine resin ( I2 ) sterilization (12) Distilled water machine
2 filter common PP meltblown filter, also use ceramic filter, PE pipe filter, PP film folding filter, etc.;
3 adsorption of commonly used activated carbon, also used activated carbon rod filter, activated carbon fiber, molecular sieve and so on.
4 sterilization materials are membrane materials ( MF , UF , NF , RO ) to filter bacteria and iodine resin, UV , O3 and other sterilization
(3) Hot and cold water straight drinking machine: vertical cabinet type, through the water purification system to produce purified water or pure water, heated or cooled, can be used to drink normal temperature, hot water, ice water;
(4) Automatic water vending machine: pure water or pure water is produced through the water purification system, and water can be automatically sold by coin or credit card;
(5) Irrigation and integration machine: It can produce pure water or pure water through the water purification system, and can automatically wash the barrel, fill and gland to produce bottled water.
(3) Floor type water purifier: water purifier used on the ground; (4) Wall-mounted water purifier: a water purifier used on a wall;
(5) Pipeline water purifier: a water purifier connected to the water supply pipe; (6) Water purifier special water purifier: the water purifier used on the water dispenser.
Teach you how to choose a water purifier and identify the water purifier