Filtering and back-flushing method of ceramic filter element of water purifier

Abstract

The invention relates to the water treatment industry, in particular to the aspect of deep filtration and purification of drinking water. The invention discloses a filtering and back-flushing method of a ceramic filter element of a water purifier. The pipeline of a water treatment device comprises a water path switcher and a ceramic filter element device controlled by the water path switcher; the water path switcher is provided with a back-flushing water discharge port; an inflow/outflow water switch port of a connection disk of the water path switcher is serially communicated in the pipeline of the water treatment device; an inflow/outflow water switch port of a controlled disk of the water path switcher is communicated with a water inlet and a water outlet of the controlled ceramic filter element device; a sealed switch interface is formed between the connection disk and the controlled disk, and related water switch ports are formed at corresponding equational switch positions respectively; and a filtering channel and a back-flushing channel of the controlled ceramic filter element device are formed through relative shift of the positions of the water switch ports on the connection disk and the controlled disk respectively. The invention has the advantages of effectively eliminating influence of carbon loss on the drinking water and prolonging the service life of the rear fine filter element, along with simple and practical structure, low cost and good filtering and back-flushing effect.

Description

technical field [0001] The invention relates to the water treatment industry, and specifically relates to the deep filtration and purification of drinking water. Background technique [0002] At present, water purifiers are relatively popular in China. When drinking water is used, the water purifier is used to deeply filter the impurities in the water and water pipelines, which better protects the health of users. Yet, along with the popularization of water purifier, their defect and deficiency also gradually exposed in application aspect. After the filter element of the water purifier is used for a period of time, the filter material of the filter element is gradually blocked by impurities and adsorbed on the outer surface of the filter material, resulting in a significant decline in filtration and adsorption effects. The "pollution" degree of the filter element impurities exceeds the "pollution" degree of the drinking water itself, so that the filter element becomes a ne...

AI Technical Summary

Problems solved by technology

However, due to the relatively large pore size, its interception effect is limited, and the activated carbon particles will gradually clog and penetrate into the filter layer of the fine filter element.

In the same way, the post-installed activated carbon filter element behind the fine filter element also has the phenomenon of "running charcoal", which directly affects the quality of drinking water after treatment.

Above-mentioned defect and deficiency cause water purifier to be difficult to obtain wider popularization