Ultra micro-filter device with variable aperture

Abstract

The invention discloses an ultra micro-filter device with variable aperture, which comprises a housing, wherein a filter cavity is arranged in the housing; a raw water inflow pipe is arranged on the top end of the housing; a fixed base is arranged at the bottom of the filter cavity; a comb-shaped filter cartridge formed by superfine fibers is arranged on the upper part of the fixed base; a float board capable of moving up and down in the filter cavity is arranged on the other end of the filter cartridge; water holes are arranged on the float board; and a water outflow pipe is arranged on the fixed base. The invention has the advantages that the raw water for micro-filtration is formed by squeezing the fibers by utilizing water inflow pressure; micropores can be simultaneously disintegrated by utilizing the pressure of reverse washing water to realize the purposes of complete washing and simple and reasonable structure; the superfine fibers are taken as filter materials; no filter membrane made of special materials is required so that the manufacture cost of the micro-filtration device is greatly reduced; the integral filter effect is good; impurities and sewages in the raw water can be effectively eliminated; the water inflow pressure is controlled to change the aperture of the micropores so as to realize the ultra micro-filter (while trapping grains of 0.1 micrometers); and the device is suitable to be used in a drinking water filter system to enhance the water quality standard of the filtered water, etc.

Description

technical field [0001] The invention relates to the field of filtering devices, in particular to a variable aperture ultramicrofiltration device. Background technique [0002] Microfiltration, also known as microporous filtration, belongs to precision filtration, which can filter micron-sized particles and bacteria, and retain particles such as gravel, silt, clay and Giardia, cryptosporidium, algae and some bacteria in the solution, while A separation process in which a large number of solvents, small molecules, and small amounts of macromolecular solutes can permeate the membrane. Existing filter materials can be divided into many types, such as pleated filter elements, melt-blown filter elements, bag filter, microfiltration membrane, etc. [0003] my country's microfiltration technology research began in the early 1970s, and began to focus on CA-CN diaphragms. In the 1980s, CA, CA-CTA, PS, PAN, PVDF, nylon and other diaphragms were successively developed, and then pleated...

AI Technical Summary

Problems solved by technology

[0005] 1. The overall structure is complex, especially the filter element of the microfiltration device, most of which need to use special materials, and the production cost is high;

[0006] 2. The microfiltration effect is poor, and the intercepted particles are generally 0.1-75 microns, and there are still many impurities in the filtered water, especially when it is used for direct drinking water microfiltration, it often cannot meet the water quality requirements;

[0007] 3. High operating cost and low work efficiency;

[0008] 4. It is not easy to clean and has a low service life

A large amount of impurities and dirt remain in the pores of the microfiltration membrane, which is difficult to clean, resulting in a decrease in the filtration effect, and the filter element needs to be replaced every 1-2 years

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