Purifying and filtering element for preventing breeding of microorganisms

Abstract

The invention relates to a purifying and filtering element for preventing breeding of microorganisms. The purifying and filtering element comprises an activated carbon fiber filtration membrane tube with a hollow filter cavity, an upper seal cover, a lower end cover, an ultrafiltration membrane shell, an ultrafiltration membrane and an activated carbon fiber filter sheet, wherein the upper seal cover is arranged at the upper end face of the activated carbon fiber filtration membrane tube; the lower end cover is arranged at the lower end face of an activated carbon fiber filtration membrane; a filter tube body extends towards the hollow filter cavity of the activated carbon fiber filtration membrane tube at the upper surface of the lower end cover above the effluent through hole; a water inlet cavity is left between the upper end face of the filter tube body and the lower end face of the upper seal cover; a stream clearance is formed between the outer lateral wall of the filter tube body and the inner lateral wall of the activated carbon fiber filtration membrane tube; a hailuo (Chinese character) net filter material is arranged inside the filter tube body; a filter net cover capable of preventing the hailuo net filter material from moving upwards is also arranged at the upper part of the filter tube body; a filter net capable of preventing the hailuo net filter material from moving downwards is arranged inside an inner cavity at the lower part of the filter tube body; the activated carbon fiber filter sheet and the ultrafiltration membrane are orderly arranged inside the ultrafiltration membrane shell from bottom to top; the upper part of the ultrafiltration membrane shell is detachably connected with the lower end cover; an outlet pipe joint is arranged at the lower part.

Description

technical field [0001] The invention relates to a filter device, in particular to a water purification filter element for preventing microbial growth. Background technique [0002] The health and longevity of the human body largely depend on whether people can drink clean and healthy water. In recent years, due to the expansion of the industrial scale and the densification of large cities and factories due to economic growth, the problem of environmental pollution has increased greatly. serious problem of water pollution. [0003] In the field of water treatment, water purification filter elements are often connected to the water outlet of the faucet to filter water. Traditional drinking water purification filter elements generally use ultrafiltration membrane filters for filtration, mainly including linear hollow ultrafiltration membranes, ultrafiltration Membrane joint and water outlet pipe head, the two free ends of the ultrafiltration membrane are fixed on the ultrafilt...

AI Technical Summary

Problems solved by technology

[0004] 1. It belongs to physical filtration, and it will become a hotbed of microorganisms after a period of use. Health system experts pointed out that after about 7 days for a general ultrafiltration membrane filter element, the microbial indicators such as bacteria and algae in the water will greatly increase, and the intercepted Microorganisms will adhere to the surface of the ultrafiltration membrane to grow and multiply, which may completely block the micropores, or even completely block the inner cavity of the hollow fiber, so that the filtering effect will soon be lost. The existing technology uses repeated washing of the ultrafiltration membrane (positive flushing and recoil) to overcome, the effect is not very satisfactory, and repeated flushing will easily make consumers lose patience with this filter element, thus giving up the use of ultrafiltration membrane filter elements;

[0005] 2. High concentration of nitrite

Ultrafiltration membrane filtration technology is the best solution to deal with organic pollution, but everything has two sides. In water quality with serious organic pollution and obvious turbidity, this technology will lead to an increase in microbial indicators, which will lead to an increase in nitrite concentration. The direct manifestation is that the water quality will become salty after using the water purifier for a period of time, which not only affects the taste, but also seriously threatens human health;

[0006] 3. Under the action of large particles of impurities or running water hammer, the ultrafiltration membrane is easy to break or scratch, which affects the filtration effect, cannot effectively remove various chemical pollutants, and shortens the service life of the water purification filter element that prevents microbial growth ;

[0007] 4. The bleaching powder in the water has strong oxidative properties, and it is easy to cause serious oxidative damage to the ultrafiltration membrane at the back end

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