Filter element for purifying running water

Abstract

The invention provides a filter element for purifying running water. The filter element comprises a shell with an opening, an upper filtering interlayer arranged at the opening position of the shell, a lower filtering interlayer arranged at the bottom of the shell and a middle filtering interlayer arranged in the shell, wherein a first filtering cavity is formed between the upper filtering interlayer and the middle filtering interlayer in the shell, a second filtering cavity is formed between the middle filtering interlayer and the lower filtering interlayer, activated carbon is arranged in the first filtering cavity, and anion and cation resin is filled in the second filtering cavity. The filter element for purifying running water is mainly applied to household and personnel purifying vessels, the middle filtering interlayer ensures filtering material in the filter element to be arranged in a layering manner, no gas blocking phenomenon occurs in the filtering core during filtering, and good filtering effect is achieved; a flow-limiting pore is formed at the bottom of the shell, the dead weight of water is used as power, and the reaction time of water and resin is controlled by size of pore diameter; the shell is tapered, the resin is of a structure with more on top and less at bottom, the resins at the upper layer and the lower layer are saturated simultaneously, and the service life of the filter element is prolonged.

Description

technical field [0001] The invention relates to a water purification device, in particular to a tap water purification filter element. Background technique [0002] For life, water is indispensable, and humans are no exception. In extreme environments, the human body may become metabolically disordered beyond rescue if it lacks water for 24 hours; even under relatively comfortable conditions of temperature, humidity, and air pressure, a It is difficult for adults to last for more than 5 days without water intake. With the continuous improvement of people's quality of life, the demand for high-quality water is increasing rapidly. At present, the municipal tap water we often drink is safe drinking water and meets the national drinking water standards when it leaves the factory. , however, municipal tap water is prone to secondary pollution by contacting water sanitary ware (faucets, etc.) after being transported through pipelines and entering communities and households. In ord...

AI Technical Summary

Problems solved by technology

[0004] The water purification filter adopts different types of purification systems according to the type of filtration. The common process of nanofiltration or reverse osmosis water purification filter is non-woven fabric, coarse filter granular activated carbon (GAC), fine filter granular activated carbon, nanofiltration membrane or reverse osmosis Membrane and post-installed granular activated carbon, the reverse osmosis inlet water pressure requirements of this water purification filter element are relatively high. Generally, the water pressure of municipal tap water cannot meet the requirements, and a booster pump needs to be added, which increases the cost of water purification. If the pressure is not enough, the TDS value of the filtered municipal tap water is not zero, there must be impurities in it, and the thorough purification effect has not been achieved.

Moreover, there are existing water purification filter elements on the market that use water gravity filtration technology. In order to make the TDS value of water tend to zero, the volume of the water purification filter element is designed to be relatively large, which costs a lot of money and is not suitable for use in places such as homes.

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