First stage: microfiltration membrane: microfiltration membrane removes all kinds of visible matter/dust and impurities in tap water. These particulate matter come from aging of pipeline, rusting, secondary pollution of roof water tank and so on.
Stage 2: Compressed carbon: Compressed carbon removes chlorine and organic impurities, such as harmful pesticides. It also absorbs odors, colors and odors produced by organic compounds in water, which come from disinfection by-products of tap water.
Level 3: Ultrafiltration Membrane: Ultrafiltration Membrane can remove bacteria, viruses and spores in water.
Fourth stage: filter life indicator: the device is designed for gear structure. With the passage of water flow, the gear rotates to make one of the internal axes move upward until the outlet is blocked. The water flow can not pass through. That is to say, the total water flow through the water purifier can be calculated by the designed stroke, so as to ensure the safety of the outlet water. 。
Most of the water purifiers adopt the progressive structure of screening and filtering principle, which is composed of multi-stage filter elements connected in series. The precision of filter elements is arranged from low to high in order to realize multi-stage filter elements allocation and interception of dirt, thereby reducing the plugging of filter elements and artificial sewage discharge, cleaning times and prolonging the cycle of replacing filter elements. Another new design idea is to apply the principle of mass distribution to self-cleaning structure. Its design idea is no longer to provide as much space as possible for hiding dirt and holding dirt, but to take the principle of mass separation to separate a small part of clean water, and at the same time to make the raw water flow as usual so that the dirt can be carried with the current in time. Walk until the running water doesn't rot. In this way, the purified water can be obtained, and it is not easy or difficult to deposit dirt in the machine, avoiding the formation of secondary pollution and greatly reducing the loss of the filter core. The water quality is better, safer and energy-saving. This new principle of self-cleaning water purifier won the Gold Prize of the 7th International Invention Exhibition. It improves the structure of the traditional water purifier, because of the structural drawbacks of one-in-one-out, the impurity concentration of raw water accumulates in the machine, and finally becomes sewage. Therefore, the self-cleaning water purifier has no concept of sewage and sewage purifier. Instead, wash water. With the improvement of living standards, the popularization of water purifiers will be more and more widespread, and the products of new technologies are better meeting people's needs.