Flat sheet membrane supporting screen plate capable of forming water outlet and circulation channels after being spliced

Abstract

The invention discloses a flat sheet membrane supporting screen plate capable of forming a water outlet and circulation channel after being spliced. A membrane element supporting plate comprises peripheral edge strips and a flow guide plate positioned in the edge strips; a plurality of first lugs are arranged at the edge strips of the membrane element supporting plate; a plurality of water outletpipes are arranged on the first lugs; the height directions of the water outlet pipes are perpendicular to the plate surface of the membrane element supporting plate; a plurality of water outlet holesare formed in the side walls of the water outlet pipes; a plurality of main water catchment openings for communicating the two sides of the flow guide plate with the water outlet holes are formed inthe edge strips; the membrane element supporting plate is a square plate, and sealing plates are arranged at two side strips of the square plate; the sealing plates are thicker than the membrane element supporting plate and are as high as the water outlet pipe; and two side surfaces of each sealing plate and two ends of the water outlet pipe are respectively positioned on the same plane; and the flow guide plate is a screen plate. A water outlet channel and a circulation channel can be achieved after the membranes are pressed. The flow guide plate is changed into a screen plate structure, so that the cost is effectively reduced, and the water catchment flux of the membrane is increased.

Description

technical field [0001] The invention relates to the field of flat membranes, in particular to a flat membrane support net plate which can form water outlet and circulation channels after splicing. Background technique [0002] Membrane bioreactor (MBR), as a practical sewage advanced treatment technology, has obvious technical advantages compared with traditional biochemical technology, and has a broad market and development space. MBR is a new type of water treatment technology that combines membrane separation unit and biological treatment unit. It replaces the secondary settling tank at the end of traditional biological treatment technology with membrane modules, maintains high active sludge concentration in the bioreactor, and improves biological treatment. load, thereby reducing the footprint of the sewage treatment facility, and reducing the amount of excess sludge by keeping the sludge load low. The flat membrane element is an important core component in the MBR memb...

AI Technical Summary

Problems solved by technology

The flat membrane element is an important core component in the MBR membrane bioreactor, and the support plate is an important core component of the flat membrane element. The flat membrane in the current technology has the following deficiencies: (1) The height direction of the outlet pipe and the flat plate The direction of the surface of the membrane support plate is parallel, and the hose is connected to the outlet pipe to collect the outlet water. There are several problems in the hose connection. One is that it is inconvenient to insert and connect, which takes time and effort. The tube is easy to fall off; (2) It needs an external slot to be inserted to separate the diaphragm from the diaphragm, which is troublesome to assemble. In order to form a flow channel between the diaphragm and the diaphragm, a sealing plate needs to be set; (3) The support plate is thick, and the support plate constitutes the main cost structure of the membrane element, resulting in high cost of the membrane element and low water catchment flux of the membrane

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