High-throughput anti-pollution microporous filter and filtering method thereof

Abstract

The invention discloses a high-flux anti-pollution microporus filter and a filtering method thereof. The filter comprises an inner side filtering membrane, an outer side filtering membrane, clear water channels, unfiltered water channels, seal strips for the unfiltered water channels, filtering membrane supports and seal strips for the clear water channels. A filter element of the filter is a spiral structure formed by rolling and machining the inner side filtering membrane and the outer side filtering membrane, the multiple filtering membrane supports are inlaid between the two filtering materials, and the seal strips for the unfiltered water channel and the seal strips for the clear water channels are installed on the upper edge and the lower edge of the filter element in a spaced mode respectively and have the function of stopping unfiltered water from entering an upper clear water region and the function of stopping filtered clear water from back flowing to a lower unfiltered region respectively. According to the high-flux anti-pollution microporus filter and the filtering method thereof, the pollution resisting effect is good, the service life is long, and the filtering capacity per unit volume is large.

Description

technical field [0001] The invention belongs to the technical field of filtering devices, and relates to a filter, in particular to a high-throughput anti-pollution microporous filter; meanwhile, the invention also relates to a filtering method of the filter. Background technique [0002] Microporous filter is a kind of equipment that is widely used in daily life and industrial process. The key component in the filter is the filter element. The structure of the commonly used microporous filter element in the market is folded. [0003] The advantage of the folded microporous filter element is that the filter surface per unit volume is large and the dirt holding capacity is large. Whether this filter is used to filter liquid or gas, its working principle is interception, and a filter cake is formed on the filter layer. When the differential pressure reaches a certain level, backwashing is performed, and the effect of backwashing is very bad. [0004] Reason 1. When the folded...

AI Technical Summary

Problems solved by technology

Whether this filter is used to filter liquid or gas, its working principle is interception, and a filter cake is formed on the filter layer. When the differential pressure reaches a certain level, backwashing is performed, and the effect of backwashing is very bad.

[0004] Reason 1. When the folded microporous filter element forms a filter cake, the folded gap is already filled with pollutants, and some of them are caught by the folded filter element, which is not easy to backwash; With special structure, backwash water or air cannot be cleaned along the vertical direction of the filter surface, most of them are close to the parallel direction of the filter surface, such backwash force will have very little impact on the dirt in the filter membrane, and it is difficult to clean the goal of

In addition, this kind of backwashing force will have less impact on the dirt sandwiched between the two filter membranes, so the filter with this structure does not have self-cleaning ability, and it needs a lot of energy to be effective when backwashing

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