Support plate for flat membrane member

Abstract

The invention discloses a support plate for a flat membrane member, and relates to a membrane support plate for a flat membrane member in water treatment. The support plate comprises a plastic thin plate, and the front surface and back surface of the plastic thin plate are both provided with alternate vertical guiding gutters. Vertical strip-shaped bosses are symmetrically arranged on the front surface and back surface of the support plate along the edges. The vertical bosses on the front surface and the back surface are provided with a recessed groove or a projected edge, and the projected edge can be snapped into the corresponding recessed groove. The middle vertical parts of the front surface and the back surface of the support plate are provided at least a vertical guiding gutter, and a water tap that connects the vertical guiding gutters, wherein the width of the vertical guiding gutter is equal to the distance between the two outermost vertical guiding gutters. In the prior art, the flat membrane member need to be positioned and assembled by a U-shaped slot, or the flat membrane member need to be pressed by a pressing mechanism such as screw rod, and the like, and after the step mentioned above, the flat membrane member need to be sealed. By using the support plate, the flat membrane member does not need to be sealed, and thus the assembly and manufacture costs are largely reduced. Furthermore, no boss is arranged on the surface of the support plate, so the membrane flux is greatly increased, sealing between the support plate and the membrane becomes easier, and the processing efficiency is improved.

Description

technical field [0001] The invention is an improvement to the membrane support plate of the flat membrane element used for water treatment, and particularly relates to a support plate for the flat membrane element which is thin in thickness and not easily deformed, and has small filtration running resistance and transmembrane pressure difference. Background technique [0002] Membrane-bioreactor (Membrane Bioreactor, MBR), as a new type of high-efficiency sewage treatment technology, has become an attractive and competitive option for urban sewage and industrial wastewater treatment and reuse, and is regarded as "the most Best Available Technology". The flat membrane element is the core element of the MBR reactor, and the support plate is an important core component of the flat membrane element. The support plate supporting the flat membrane is as described in Chinese patents CN1676202, CN101541406, CN201534787U, CN201493055U, CN201692771U, etc., basically using corrosion-re...

AI Technical Summary

Problems solved by technology

This kind of technical scheme relies on the support plate surface boss as interval support through the combination of adjacent membrane elements, which effectively prevents the support plate from warping and deformation, ensures that the distance between the planes of adjacent membrane elements remains unchanged, and aerates and scours evenly, reducing the Membrane pollution, and significantly reduce the thickness of the support plate, the thickness is reduced from 5.5-6.0mm to about 3.5mm, which reduces the weight and cost of the support plate by about 30%. However, this technical solution requires the membrane attached to it. Hole opening processing, and effective sealing of the membrane at the boss, otherwise it is easy to cause short flow of treated water or cleaning liquid due to the opening, making the membrane useless, and although the U-shaped slots are no longer used for insertion between the support plates, However, it utilizes through-holes or grooves for assembly, and uses bolts and other fasteners to connect in series for compression and sealing. Sealing, the above problems still need to be improved

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