Splitted and equalized combined gas and water forced cross-flow cleaning tubular submerged membrane unit

Abstract

The invention provides a splitted and equalized combined gas and water forced cross-flow cleaning tubular submerged membrane unit comprising membrane tubes, a support structure, an air intake pipe, awater collecting pipe, a connecting pipe head and a soft connecting pipe, and a plurality of membrane tubes as a set are inserted vertically into the interior of the support structure. The most remarkable innovation of the splitted and equalized combined gas and water forced cross-flow cleaning tubular submerged membrane unit is that after dividing the whole bundle of membrane filaments into multiple bundles, the membrane bundles are uniformly thinned in a narrow space formed by a guide cylinder which air and water must pass by and the inner walls of the membrane tubes, the membrane tubes arein a submerged and vertical suspension state, the cross-flow turbulent cleaning effect of an air-water mixture on the surface of the membrane filaments filled in the space is enhanced, the short-flowand dead-end phenomena of the air and the water pass by can be greatly reduced, the sufficient cleaning of the surface of the membrane filaments can be effectively ensured, and the problems such as damage and breakage caused for the reason that dirt among the membrane filaments inside a hollow fiber membrane filter element is hardened and deposited to cause incomplete cleaning, and the membrane filaments are easily entangled with each other can be overcome.

Description

technical field [0001] The invention belongs to the technical field of water treatment equipment, and in particular relates to a tubular submerged membrane unit for cleaning by splitting beams and evenly sharing combined air and water forced flow measures. Background technique [0002] Compared with the traditional water treatment process, MBR (Membrane Bio-reactor) replaces the secondary settling tank in the traditional water treatment method with membrane filtration, which fundamentally solves the problem of poor mud-water separation in the traditional process, The problem of poor water quality. [0003] At present, most of the water treatment elements used in the MBR process are flat plate and hollow fiber curtain, which obviously improve the microbial concentration and purification effect required by biochemistry, but at the same time bring about the accumulation and clogging of solid pollutants on the surface of membrane filtration. , and even cause hair fibers and oth...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a tubular submerged membrane unit with beam-splitting and evenly distributed combined air-water forced flow cleaning, so as to solve the existing membrane units that are easy to block, harden inside the membrane core, difficult to clean and Troubled disassembly and assembly

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