Lamination type filter

Abstract

The invention relates to the technical field of water filtration, and in particular relates to a lamination type filter. The lamination type filter comprises a shell, a water inlet pipeline, a water outlet pipeline, a back-wash pipeline, a filter element support and a plurality of laminations sleeving the filter element support, wherein each lamination comprises convex rings and bending units; a first inlet is formed in the outer side of each bending unit and an outlet is formed in the inner side of each bending unit; a plurality of convex rings are concentrically arranged under the bending units; a second inlet is formed between the convex ring positioned on the lower part of each lamination and the bending unit positioned on the upper part of each lower lamination; the second inlet is communicated with the first inlet and the first outlet respectively. The lamination type filter is equivalent to a two-layered meshy filter, the first layer is coarse filtering and the second layer is fine filtering; a second layer of filter screen is equivalent to a filter screen which is folded for many times; compared with a common cylindrical filter screen, the filter screen has the advantages that the filtration area of the filter screen is 2-8 times larger than that of the common cylindrical filter screen; more importantly, multiple layers of laminations are separated from each other during back-washing, so that the back-washing effect of the lamination type filter is greater than that of the meshy filter.

Description

technical field [0001] The invention relates to the technical field of water filtration, in particular to a laminated filter. Background technique [0002] At present, the filter is a device used to filter the liquid containing impurities, especially in the field of agricultural irrigation, it is necessary to filter the large particles in the water, so as to obtain relatively pure irrigation water. Existing laminated filters are structurally basically composed of main parts such as housings, laminates, laminated supports and the like. Although there are many filtering methods, due to the unreasonable design of the lamination structure, the filtering effect of the overall equipment is poor, and the purpose of accurately filtering irrigation water cannot be achieved; moreover, the filter structure in the prior art is complex and requires a high The manufacturing cost and poor backwashing effect are unfavorable for popularization and use. [0003] Therefore, in view of the ab...

AI Technical Summary

Problems solved by technology

Although there are many filtration methods, due to the unreasonable design of the lamination structure, the filtration effect of the overall equipment is poor, and the purpose of accurately filtering irrigation water cannot be achieved; moreover, the filter structure in the prior art is complex and requires a higher Manufacturing cost, and the backwashing effect is poor, which is not conducive to promotion and use

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