1, the effluent is good and durable, and there is no secondary pollution;
2, easy to use, no need for manual disassembly and cleaning, no sewage discharge, and it is best not to use electricity;
3, energy saving and low consumption, electricity saving and water saving, and low replacement cost of consumables.
Appearance, packaging and display decoration are related to personal preferences, but not directly related to practical performance, so we will not judge them.
Second, the background of household water purification industry and the emergence of self-cleaning water purifiers
In recent years, although new water treatment materials and processes have emerged continuously, the structural methods of specific products made of these materials and process principles are basically the same, with little change. For example, the water purifier, as the mainstream product in the current market, still retains the traditional 3+2 structure introduced from abroad in the early 1990s. Even if some manufacturers design the dust cover and base, the inner core is still the same. Can not meet the growing needs of society and consumers, especially in the convenience of product use, the stability of effluent quality and the cost of consumables in the later stage. Can not meet the growing consumer demand and higher quality requirements of the broad masses of the people. First, the end consumer requires the water purifier to be as simple and convenient as other household appliances, which is also the most basic requirement. However, while removing dirt and purifying water quality, household water purifiers are bound to face the problem of how to deal with the trapped dirt and prevent its secondary pollution. At present, the traditional water purifiers on the market all adopt the methods of regular manual cleaning, regular sewage discharge and replacement of filter elements. In product design, the effective area is increased by gradually tightening the structure and increasing the number of filter elements, so that water treatment products have more space to hide dirt, thus prolonging the manual cleaning cycle, such as digging grooves on the surface of PP cotton filter elements to increase the surface area and prolong the service life. But dirt can't stay in the product for too long, otherwise it will easily breed bacteria and cause secondary pollution. Therefore, at present, most water purifiers on the market (including Qinyuan, Angel, Li Sheng, Midea, 3M and other brands) have to manually open the valve regularly for sewage discharge and disassembly and cleaning, and replace the filter element every three months, which brings great inconvenience to users, wastes valuable water resources and restricts the popularization of water purification products. Secondly, the product performance is required to be stable, especially the lasting stability of effluent quality is an important index. However, the traditional water purifier is prone to secondary pollution such as bacteria, and the effluent is accompanied by carbon powder precipitation (which can be distinguished from the obvious black water coming out of the machine when installing or replacing the activated carbon filter in the new machine). Thirdly, in a cleaning or replacement cycle, the traditional progressive water purifier is easy to block and corrode the filter element because all dirt is deposited in the product, and the service life of consumables is short, especially the three-stage filter element in the pretreatment part needs to be replaced frequently, and the later use cost is very high. The above market demand has prompted the emergence of new technologies and products for water purifiers. In this context, "self-cleaning and energy-saving water production technology" was born. After six years of experiments from 2002 to 2008, the R&D team of Sino-German cooperative Jinmei Electric Appliance (Fuzhou) Co., Ltd. continuously improved the structural design, repeating the process of design → trial production → redesign → trial production, and finally overcame the above three technical defects perfectly. In the whole product development process, we boldly innovated, abandoned the traditional "blocking and filtering" scheme from the time of product development, proposed to unblock the waterway to achieve the effect of running water without rot, and at the same time adhered to the "simple", "ingenious" and "practical" product design concept to simplify the product structure and reduce internal pollution. Finally, a new structural design principle of "quality-based cycle" is formed. Under this guiding ideology, the overall structure is that the main filter element of the whole machine adopts the structure of one inlet and two outlets, and there are two channels in the product, which lays the foundation for timely sewage discharge and scale removal, so that washing water and purifying water can go their own ways. With the switch action of the user's faucet, the whole machine can automatically and timely clean the filter element. The activated carbon filter element and the membrane form a double-membrane protection function, so that the effluent quality is not only free of carbon residue, but also durable and stable, and more importantly, it overcomes the mechanism risk of secondary pollution that people are careful about in traditional water purifiers. At the same time, due to the simple product structure and self-cleaning function, the use cost of consumables in the later period is 67% lower than that of traditional products, and the reliability is obviously improved, which is close to that of zero failure. This technology has been successfully developed and can be directly applied to medium and large water treatment equipment such as household water purifiers, commercial water purifiers, residential drinking water stations, high-quality water supply in buildings, and advanced purification systems in waterworks. At present, the developed household product "Jinmei brand ZWP series self-cleaning water purifier" has passed the inspection of the Institute of Environmental and Health-related Product Safety of China Center for Disease Control and Prevention, and obtained the approval of the Ministry of Health on the hygiene and safety of drinking water products. Its product performance is far ahead compared with similar products, and the market feedback and evaluation are good.
Thirdly, self-cleaning opens up a new technical category for water purification products.
Self-cleaning is a brand-new and more reasonable structural model of water purification products. Technical innovation is made from two aspects: pipeline design of water purification products and treatment method of sewage intercepted in machines. After the advent of self-cleaning water purification products, water purification products can be divided into two categories according to the technical level of pipeline design, namely, gradually tightening water purification products and self-cleaning water purification products. Its internal pipeline design consists of PP cotton, granular activated carbon, compressed activated carbon, RO reverse osmosis membrane or ultrafiltration membrane, and post-activated carbon. Usually, this five-stage filter element is connected end to end. There is only one channel in the pipeline, and dirt is deposited in the filter element, which needs to be disassembled and cleaned manually at regular intervals to ensure the normal operation of the machine. Most products on the market at present fall into this category. Now more advanced self-cleaning water purification products have designed two channels in the machine and added a washing water channel. There are complete channels for washing water and purified water, both of which do their own thing to make the water move. When the washing water as common domestic water passes through the channel, it washes the raw water side of the filter element in the machine, especially the membrane filter element, so as to achieve the function of self-cleaning. And at the moment of opening and closing the flushing faucet, the water flowing from the head section and the tail section can be used to discharge the trapped dirt in time and quickly. This kind of structure design is ingenious and reasonable, which not only avoids the trouble of daily manual disassembly and cleaning by users, but also avoids the secondary pollution caused by scale accumulation in the inner core, greatly reducing energy consumption.
Fourth, the technological progress of self-cleaning water purifier
The main technical characteristics of self-cleaning energy-saving water production system are self-cleaning, double-film protection design and ultra-low energy consumption. It has three advantages: first, it is convenient to use: no disassembly and no washing, no pollution, less replacement of consumables and no electricity; Second, the water quality is long-lasting: there is no carbon residue, bacteria are separated before and after, and the outlet water tastes good; 3. Low energy consumption: save water by quality, 50% by reverse osmosis, and 67% by electricity and materials.
The following is an example of "Jinmei brand ZWP self-cleaning water purifier".
The main difference between self-cleaning water purifier and ordinary water purifier;
Energy consumption difference between self-cleaning water purifier and ordinary water purifier;
Verb (abbreviation of verb) honors related to self-cleaning water purifier
★ National invention patent
★ The only water purifier named "Self-cleaning" was approved by the Ministry of Health.
★6 18 cross-strait innovation achievement gold award (20 12)
★ Gold Award in the 7th International Invention Exhibition
Intransitive verbs query websites and related news reports.
Jinmei Electric official website: www.jmdqfz.cn
Encyclopedia of self-cleaning water purifier:/news/benbu/2012-11-20/44563.html.
/fqnews 20 1 1/20 12-08-02/ 122242 . html
/fqsz/20 1 1- 12-09/ 1 12323 . html
Seven, user comparison test report
Objective: To compare different brands and the same grade water purifiers used by two households in Building 7# of World City Phase I..
Waiting for the comparison test.
Household: Jinmei brand ZWP-03 self-cleaning water purifier, installed on June 5, 20 1 1 year.
307 Household: A first-line brand * RO/KOOC-0/0/KOOC-0/A-5 water purifier, with the installation date of 20/KOOC-0//KOOC-0/June/KOOC-0/.
It has been used for one year, and the test date is: 20 12 June 13.
Second, compare the test results: