CN202054660U

CN202054660U - Immersed flat plate filter membrane element for membrane bioreactor

Info

Publication number: CN202054660U
Application number: CN2011200517151U
Authority: CN
Inventors: 常江; 邵梅生; 曹永军
Original assignee: JIANGSU DAFU MEMBRANE TECHNOLOGY CO LTD
Current assignee: JIANGSU DAFU MEMBRANE TECHNOLOGY CO LTD
Priority date: 2011-03-02
Filing date: 2011-03-02
Publication date: 2011-11-30
Anticipated expiration: 2021-03-02

Abstract

The utility model relates to an immersed flat plate filter membrane element for a membrane bioreactor, which comprises a supporting plate. Both sides of the supporting plate are provided with filtrate flow passages and filter membrane flat plates sequentially from inside to outside. Each filtrate flow passage comprises a group of branch flow passages and a main flow passage. The branch flow passages of each filtrate flow passage are communicated through the corresponding main flow passage. The branch flow passages are vertically arranged. One group of branch flow passages at least comprises seven branch flow passages. The main flow passages are horizontally arranged. A water collecting nozzle communicated with the main flow passages is arranged outside the supporting plate. Lining cloth is arranged between the supporting plate and the filter membrane flat plates. The immersed flat plate filter membrane element for the membrane bioreactor, which is disclosed by the utility model, has a simple structure. The filtering resistance can be evenly dispersed. The water outlet flux is improved.

Description

The dull and stereotyped filter membrane element of a kind of membrane bioreactor immersion

Technical field

The utility model relates to a kind of sewage disposal technology, the dull and stereotyped filter membrane element of particularly a kind of membrane bioreactor immersion.

Background technology

Membrane bioreactor is to integrate the biological degradation in the bio-reactor and the high efficiency separation of film, is that membrane separation technique and dirty water living creature processing technique organically combine the new process for treating waste water that produces.Because the efficient crown_interception of film, microorganism is dammed in reactor, thereby realized thoroughly separating of hydraulic detention time and sludge retention time, compare with traditional biochemical sewage disposal technology, membrane Bio-reactor Technology has stable effluent quality, occupation area of equipment is little, sludge concentration is high, excess sludge production is low and be convenient to realize advantage such as automatically control.

On the development history of membrane bioreactor, continue to bring out out various materials and various forms of component type, development and exploitation along with high performance submerged membrane assembly, than the external membrane assembly, there is device structure more simple, the clear superiority that operation energy consumption greatly reduces, and then the application and development that makes membrane bioreactor obtained bigger progress, and wherein flat membrane element has overcome shortcomings such as the easy fracture of wire of hollow-fibre membrane, difficult cleanings, becomes the interior focus of being paid close attention to of industry gradually.

Traditional flat membrane component mostly is the suction water outlet of diaphragm upper end both at home and abroad at present, and the diaphragm long-width ratio is bigger, mostly be upright placement, the required suction pressure in upper end is less during operation, lower end need suction pressure is bigger, caused effective filtration face to be subjected to the filtration resistance imbalance, the long-time running meeting causes the upper and lower ends pollution level to differ greatly, the localized membrane pollution grows worse, and then reduced full wafer film effluent flux; Secondly, dull and stereotyped filter membrane and lamina membranacea back up pad adopt the macromolecule resin bonding more, and through the long-time running discovery, four jiaos of suffered stress in bonding part are bigger, take off easily and split, and have a strong impact on membrane element work-ing life.

The utility model content

Goal of the invention: the utility model is at the prior art deficiency, and a kind of raising effluent flux is provided, and on average disperses the dull and stereotyped filter membrane element of membrane bioreactor immersion of filtration resistance.

Technical scheme: the dull and stereotyped filter membrane element of a kind of membrane bioreactor immersion, comprise back up pad, the back up pad both sides are provided with filtrate runner and filter membrane flat board from inside to outside successively; Described filtrate runner comprises one group of branch line runner and a main line runner, and the branch line runner is communicated with by the main line runner, and the branch line runner vertically is provided with, and one group of branch line runner is at least 7, and the main line runner is horizontally disposed with; The back up pad outside is provided with the mouth that catchments that is communicated with the main line runner, is provided with lining cloth between back up pad and the filter membrane flat board.

Four angles of the junction of described back up pad and filter membrane flat board are that radius is the fillet of 20-50mm.

Compared with prior art, because this novel flat-plate filter membrane element adopts the multithread road, distinguish the primary and secondary runner, and the mouth that will catchment designs in the central part of full wafer lamina membranacea, better disperseed swabbing pressure, the filtration resistance balance dispersion more that face is subjected to has alleviated face local pollution difference, and then has alleviated whole film pollution condition, improved average effluent flux, next can effectively utilize top liquid level pressure difference because the mouth that catchments is arranged at the diaphragm middle part, has alleviated water consumption;

Adopt advanced supersonic welding connection technology, the bonding strength of better perfect dull and stereotyped filter membrane and back up pad, change welding line into circular arc type for four jiaos simultaneously, four jiaos of suffered stress have better been disperseed, reduced because in the membrane element operational process, four jiaos of phenomenons of bursting apart that film bag repeated deformation is caused, thereby the work-ing life of having improved membrane element.

Beneficial effect: the dull and stereotyped filter membrane element of the disclosed a kind of membrane bioreactor immersion of the utility model, simple in structure, can on average disperse filtration resistance, improve effluent flux.

Description of drawings

Fig. 1 is the sectional view of the dull and stereotyped filter membrane element of membrane bioreactor immersion;

Fig. 2 is the structural representation of back up pad.

Embodiment

The utility model is further explained below in conjunction with accompanying drawing.

The dull and stereotyped filter membrane element of a kind of membrane bioreactor immersion comprises back up pad 3, and back up pad 3 both sides are provided with filtrate runner and filter membrane flat board 1 from inside to outside successively; Described filtrate runner comprises one group of branch line runner 4 and a main line runner 5, and branch line runner 4 is communicated with by main line runner 5, and branch line runner 4 vertically is provided with, and one group of branch line runner 4 is at least 7, and main line runner 5 is horizontally disposed with; Back up pad 3 outsides are provided with the mouth 6 that catchments that is communicated with main line runner 5, are provided with lining cloth 2 between back up pad 3 and the filter membrane flat board 1.

Described back up pad 3 is that radius is the fillet of 20-50mm with four angles of the junction of filter membrane flat board 1.

During use, membrane element is immersed sewage, fixing piecewise by rubber hold-down strip, mouth and the external suction means of catchmenting is by silicone tube UNICOM successively; Open suction system, sewage is by filtering dull and stereotyped membrane filtration, and the filtered liquid after the filtration is collected in the main line runner by the branch line runner, and the mouth place enters suction system in catchmenting.

The utility model provides the thinking and the method for the dull and stereotyped filter membrane element of a kind of membrane bioreactor immersion; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications; these improvements and modifications also should be considered as protection domain of the present utility model, and all available prior art of each integral part not clear and definite in the present embodiment is realized.

Claims

1. the dull and stereotyped filter membrane element of membrane bioreactor immersion is characterized in that comprise back up pad (3), back up pad (3) both sides are provided with filtrate runner and filter membrane flat board (1) from inside to outside successively; Described filtrate runner comprises one a group of branch line runner (4) and a main line runner (5), and branch line runner (4) is communicated with by main line runner (5); Back up pad (3) outside is provided with the mouth that catchments (6) that is communicated with main line runner (5), is provided with lining cloth (2) between back up pad (3) and the filter membrane flat board (1).

2. the dull and stereotyped filter membrane element of a kind of membrane bioreactor immersion according to claim 1 is characterized in that described branch line runner (4) vertically is provided with.

3. the dull and stereotyped filter membrane element of a kind of membrane bioreactor immersion according to claim 1 is characterized in that described main line runner (5) is horizontally disposed with.

4. the dull and stereotyped filter membrane element of a kind of membrane bioreactor immersion according to claim 1 and 2 is characterized in that described one group of branch line runner (4) is at least 7.

5. the dull and stereotyped filter membrane element of a kind of membrane bioreactor immersion according to claim 1 is characterized in that described back up pad (3) is that radius is the fillet of 20-50mm with four angles of the junction of filter membrane flat board (1).