synonymWater purifier(Water purifier) generally refers to water purifier
Water purifier is also called water purifier, water qualitypurifierThe water quality is deeply filtered and purified according to the requirements for water useWater treatment equipment。Generally speaking, the water purifier refers to a small purifier for household use.
Water purifiers can be divided intoGradually tightening water purifierandSelf cleaning water purifierTwo categories.The traditional water purifier is a gradually tightening water purifier. Its internal pipeline is designed with the filter element loosened in front and tightened in the rearPP melt blown filter element、Particulate carbonCompressed carbon, ROreverse osmosisMembrane orultrafiltration membrane, post activated carbon, which is generally composed of these five levels in turn from end to end.The retention is deposited inside the filter element, which needs to be removed and cleaned manually regularly to ensure the normal operation of the machine.The other is more advancedSelf cleaning water purifier, machineInterior designTwo channels are added with a washing water channel. When the washing water used as ordinary domestic water passes through the channel, it will wash the filter element in the machine, especially the raw water side of the membrane filter element, to achieve self-cleaning effect, and use open and close washingwater tapAt the moment when the first and last two sections of water have already run off, the sewage will be timely and quickly dischargedStructural designReasonably, it saves the trouble of manual dismantling and cleaning, avoids the re pollution of the organization itself, and reduces the energy consumption cost.
But please pay attention to identification,Self cleaning water purifierDifferent from what is seen on the marketAutomatic blowdown water purifierComputer automatic flushing water purifier and automaticBackwashWater purifier, the former is self cleaning of the whole machine, that is to say, all filter elements inside the machine have a certain self-cleaning function;The latter only washes one filter element instead of the whole machine.Generally speaking, the self-cleaning water purifier is equivalent to installing on the pipelineGarbage processorThe dirt shall be cleaned out at any time and shall not stay in the machine.The traditional non self-cleaning water purifier is equivalent to placing multiple garbage cans in the room, and the dirt is usually stored in the machine temporarily, so it is necessary toRegular sewage dischargeDismantle and clean the filter element frequently.
Domestic water purification
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The function of water purifier is to filter waterFloater, heavy metals, bacteriaViruses、Residual chlorine, sediment, rust, microorganism, etc. are removed, and it has high precisionFiltering technologyThe first stage of the five stage filtration technology of household water purifier is also called filter elementPP cottonFilter element (PPF), second stageGranular activated carbon(UDF) filter element, the third stage is precisionCompressed activated carbon(CTO) filter element, the fourth stage is reverse osmosis membrane or ultrafiltration membrane, and the fifth stage is rear mountedActivated carbon(SmallT33）。The water purifier not onlytap water contamination It can also filter the residual chlorine in conventional tap water and improve the sense of water use.In August 2013, the General Office of the National Health and Family Planning Commission issued the Management Specification for the Labeling Instructions of Hygienic and Safe Products Involving Drinking WaterWater related productsLabels and instructions shall not be marked“Acid water”、“Alkaline water”、“Activated water”、“Small molecule group water”、“Functional water”、“Energy water”、“Oxygen enriched water”And so on.
Level 5: Post activated carbon device: further improve the taste and remove odor.
Most water purifiers are progressive based on screen blocking filtration principleStructure, made of multi-stage filter element in series, filter elementPrecisionThe filter elements are arranged from low to high in order to realize the allocation and interception of dirt by multistage filter elements, so as to reduce the number of filter element clogging, manual sewage discharge and cleaning, and extend the cycle of filter element replacement.Another new design idea is to apply the mass separation circulation principle to the self-cleaning structuredesign idea Instead of providing as much space as possible to hide dirt and accept dirt, the principle of mass separation is adopted to separate a small part of clean water, and at the same time, try to makeraw waterIt flows as usual, so that the sewage can be taken away in time with the water flow, so that the water does not decay.So we can getPurification of waterAnd will not or is not easy to deposit dirt in the machine to avoid formationSecondary pollutionAnd greatly reduce the loss of filter element, better water quality, more safety, energy saving and low carbon.This new principleSelf cleaning water purifierWon the seventh sessionInternational Invention ExhibitionGold medal is a structure of one in and two out, which improves the raw water quality of traditional water purifiers due to the structural defects of one in and one outImpurity concentrationThe water accumulated in the machine is higher and higher, and finally becomes sewage. Therefore, the concept of self-cleaning water purifier without sewage and sewage water purifier is replaced by washing water.
Water purification standard
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The national industrial standards for water purifiers in China were issued in 2013, including Special Requirements for Safety of Ultraviolet Radiation Water Treatment Appliances for Household and Similar Appliances, Special Requirements for Safety of Hot and Cold Drinking Water Dispensers for Household and Similar Appliances, Ultraviolet Sterilizers for Household and Similar Water PurifiersFour items of Pressure Tanks for Household and Similar Reverse Osmosis Water Purifiers and Nanofiltration Water PurifiersIndustry standardsThe drafting meeting was held on May 17-19, 2013Yunnan ProvinceKunmingConvening.Among the four standards, the first two are water purifiersnational standard, is mandatorysafety standards；The latter two are industry standards and are recommendatoryProduct standard。
To ensure the hygiene and safety of drinking water (hereinafter referred to as drinking water)human health , according to《Law of the People's Republic of China on the Prevention and Treatment of Infectious Diseases》And《Regulations on Urban Water Supply》The Measures for the Supervision and Administration of Drinking Water Hygiene stipulated that the units and individuals producing products involving drinking water hygiene and safety must report to the government as requiredHealth administrative departmentApply for the approval document of product hygiene license, and the production and sales can be carried out only after the approval document is obtained.No unit or individual may produce, sell or use the products mentioned in the preceding paragraph without approval documents.All imported products related to the health and safety of drinking water must beMinistry of HealthOnly after approval can they be imported and sold.The specific management measures shall be formulated by the Ministry of Health separately.
Local people's governments at or above the county level who, in violation of the provisions of these Measures, produce or sell products involving the sanitation and safety of drinking water without sanitation license approval documentsHealth administrative departmentIt shall be ordered to improve and may be punishedIllegal incomeA fine of less than 3 times, but not more than 30000 yuan at most, or a fine of more than 500 yuan but less than 10000 yuan.
Query method of wading approval documents:Baidu Search：Health Supervision Center of the Ministry of Health→ Public inquiry → Approval library of aquatic products → InputProduct nameOr approval number → query result.You can also check the provincial and municipal approval documents for wading through the friendly links on the website of the Health Supervision Center of the Ministry of Health。[1]
