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What are the water filter filtering way?
by：Lvyuan Filter
2021-01-22
Water filter is divided into two types of filter, surface filter and depth, different ways of filtering, use the filter material are not identical, to achieve filtering effect is also different.
Screen mesh filter mainly adopts material surface, the depth filter felt material is adopted, the difference is as follows:
1, screen mesh material ( Nylon monofilament, metal monofilament) The filter impurities in direct intercept in the material surface.
advantage is monofilament structure can be repeated clean, low cost; Filtering model, while the disadvantage is that surface of the filter bag surface jams, this type of products is suitable for the low precision of coarse filtration, filtration precision - 25 1200μm。
2, felt material ( Acupuncture, dissolve blown non-woven cloth) Is a common deep 3 d filter material, its characteristic is loose fibrous tissue, high void fraction increased the capacity of impurity section, this kind of fiber material is compound intercept model, namely the larger particles impurities trapped in the fiber surface;
and fine particles trapped in deep in the filter material, so the filter with high filtration efficiency, and high temperature heat treatment, surface is an instant sintering technology, can effectively prevent filtration fiber by fluid high-speed impact bring loss;
felt material belongs to discard type ( One-time use) 1, the filtering precision - 200μm。
the hydraulic oil filter filter felt primarily use material performance is as follows:
polyester - — Commonly used fiber filter material, good resistance to chemicals, working temperature is less than 170 - 190℃；
polypropylene - — Used in liquid filtration of chemical industry, some function of resistance to acid, alkali, temperature less than 100 - 110℃；
wool - — Very good solvent resistance function, but does not apply to resistance to acid, alkali filter;
nylon - — Good resistance to chemicals function ( Besides acid) Working temperature is less than 170 - 190℃；
fluoride - — With functions of temperature resistance and chemical resistance and working temperature is less than 250 - 270℃。
1, screen mesh material ( Nylon monofilament, metal monofilament) The filter impurities in direct intercept in the material surface.
advantage is monofilament structure can be repeated clean, low cost; Filtering model, while the disadvantage is that surface of the filter bag surface jams, this type of products is suitable for the low precision of coarse filtration, filtration precision - 25 1200μm。
2, felt material ( Acupuncture, dissolve blown non-woven cloth) Is a common deep 3 d filter material, its characteristic is loose fibrous tissue, high void fraction increased the capacity of impurity section, this kind of fiber material is compound intercept model, namely the larger particles impurities trapped in the fiber surface;
and fine particles trapped in deep in the filter material, so the filter with high filtration efficiency, and high temperature heat treatment, surface is an instant sintering technology, can effectively prevent filtration fiber by fluid high-speed impact bring loss;
felt material belongs to discard type ( One-time use) 1, the filtering precision - 200μm。
the hydraulic oil filter filter felt primarily use material performance is as follows:
polyester - — Commonly used fiber filter material, good resistance to chemicals, working temperature is less than 170 - 190℃；
polypropylene - — Used in liquid filtration of chemical industry, some function of resistance to acid, alkali, temperature less than 100 - 110℃；
wool - — Very good solvent resistance function, but does not apply to resistance to acid, alkali filter;
nylon - — Good resistance to chemicals function ( Besides acid) Working temperature is less than 170 - 190℃；
fluoride - — With functions of temperature resistance and chemical resistance and working temperature is less than 250 - 270℃。
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