CN211644714U - Dull and stereotyped filtration membrane module of MBR with limit structure - Google Patents

Abstract

The embodiment of the application discloses dull and stereotyped filtration membrane subassembly of MBR with limit structure, it includes dull and stereotyped filtration membrane of a plurality of MBR, upper limit structure, lower limit structure and a plurality of membrane brushes. A plurality of MBR flat filtering membranes are arranged in parallel at intervals; the upper limiting structure is arranged at the upper ends of the MBR flat plate filtering membranes; the lower limiting structure comprises a plurality of lower limiting structural members which are respectively arranged between the bottoms of two adjacent MBR flat plate filtering membranes; a plurality of membrane brushes set up respectively between two adjacent MBR flat sheet filtering membrane, upper limit structure and lower limit structure. The dull and stereotyped filtration membrane module of MBR of this embodiment can utilize the dull and stereotyped filtration membrane substrate of MBR and insert the structural rigidity of membrane side shield substrate self for the stop device of supporter through with lower limit structure design for a plurality of lower limit structure spare that set up respectively between two adjacent dull and stereotyped filtration membrane bottoms, can be very convenient process production and installation use and spacing more accurate, saved material and cost of labor.

Description

Dull and stereotyped filtration membrane module of MBR with limit structure

Technical Field

The utility model relates to a relevant technical field of sewage treatment device, specifically speaking relate to a dull and stereotyped filtration membrane module of MBR with limit structure.

Background

In the industries of pharmacy, chemical industry, environmental protection and the like, a 'membrane filtration technology' is a commonly used liquid physical separation method, and is particularly commonly applied to small and medium-sized sewage treatment equipment in the environmental protection industry, filter materials of the 'membrane filtration technology' are generally divided into three categories, namely a fiber membrane, a metal membrane and a ceramic material, wherein the fiber membrane and the metal membrane are commonly used, and the fiber filter membrane, the metal filter membrane and the ceramic filter material are collectively called as a 'filter membrane'.

In the actual filtering process, the working environment of the filtering membrane is mixed liquid, namely the working object of the filtering membrane is mixed liquid, along with the lapse of the filtering working time, the problem of impurities attached to the surface of the filtering membrane can occur, and further the filtering pore is gradually blocked, at the moment, the flux and the efficiency of the filtering membrane can be greatly reduced, even the filtering pore is completely blocked, so that the filtering function is lost.

At present, an MBR flat membrane online automatic cleaning device (membrane brush) has been released in the environmental protection sewage treatment industry, and because the online automatic cleaning device only automatically cleans the effective area of an MBR flat membrane filtering membrane, hollow net covers must be additionally arranged above and below the MBR flat membrane filtering membrane to limit the automatic cleaning device, so as to prevent the automatic cleaning device from being separated from the MBR flat membrane filtering membrane.

The existing hollow mesh cover is generally of an integral structure made of 304 stainless steel meshes, and the 304 stainless steel meshes are flexible soft bodies, so that the manufacturing and installation processes are relatively troublesome, and more material cost and labor cost are increased.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model provides a dull and stereotyped filtration membrane module of MBR with limit structure.

The MBR flat filtering membrane assembly with the limiting structure can comprise: the membrane brush comprises a plurality of MBR flat plate filtering membranes, an upper limit structure, a lower limit structure and a plurality of membrane brushes.

The MBR flat filtering membranes are arranged in parallel at intervals; the upper limiting structure is arranged at the upper ends of the MBR flat plate filtering membranes; the lower limiting structure comprises a plurality of lower limiting structural members which are respectively arranged between the bottoms of two adjacent MBR flat filtering membranes; the membrane brushes are respectively arranged between the two adjacent MBR flat plate filtering membranes, the upper limiting structure and the lower limiting structure.

According to a preferred embodiment of the present invention, the lower limit structure includes a connection portion and a net-shaped limit portion; the reticular limiting part and the connecting part are arranged vertically; the connecting part is connected to the side face of the bottom of the MBR flat plate filtering membrane, so that the mesh-shaped limiting part is perpendicular to the MBR flat plate filtering membrane.

According to a preferred embodiment of the present invention, the lower limiting structure is a limiting mesh; the limiting net piece is vertically arranged at the bottom of the MBR flat plate filtering membrane in an integrally formed mode.

According to a preferred embodiment of the present invention, the MBR flat filtering membrane module with a limiting structure further comprises a first MBR flat filtering membrane mounting plate and a second MBR flat filtering membrane mounting plate; a plurality of first clamping grooves which are parallel to each other are arranged on the first MBR flat plate filtering membrane mounting plate at intervals along the longitudinal direction; a plurality of second clamping grooves which are parallel to each other are arranged on the second MBR flat plate filtering membrane mounting plate at intervals along the longitudinal direction; the first MBR flat filtering membrane mounting plate and the second MBR flat filtering membrane mounting plate are oppositely arranged, so that each first clamping groove corresponds to one second clamping groove; the MBR flat plate filtering membranes are respectively clamped in the corresponding first clamping grooves and the corresponding second clamping grooves.

According to a preferred embodiment of the present invention, the lower limiting structure comprises a net-shaped limiting plate, a first mounting block and a second mounting block; the first mounting block is arranged at one end of the reticular limiting plate, and the second mounting block is arranged at the other end of the reticular limiting plate; the first mounting block is connected between two adjacent first clamping grooves on the first MBR flat filtering membrane mounting plate, and the second mounting block is connected between two adjacent second clamping grooves on the second MBR flat filtering membrane mounting plate.

According to a preferred embodiment of the present invention, the upper limiting structure comprises a net cover; the net cover comprises a net-shaped baffle, a first frame arranged at one end of the net-shaped baffle and a second frame arranged at the other end of the net-shaped baffle; and the first frame and the second frame are also provided with installation parts.

According to a preferred embodiment of the present invention, the MBR flat filter membrane is provided with a handle and a suction nozzle at its top end.

According to a preferred embodiment of the present invention, a plurality of accommodating grooves are further formed on the mesh-like baffle; the position of each accommodating groove corresponds to the position of the handle and the suction nozzle on one MBR flat plate filter membrane respectively.

According to a preferred embodiment of the present invention, the MBR flat-plate filtration membrane module with a limiting structure further includes a first side plate and a second side plate; the first side plate and the second side plate are respectively arranged on two sides of the first MBR flat-plate filtering membrane mounting plate and two sides of the second MBR flat-plate filtering membrane mounting plate, so that a box structure is formed between the first side plate, the second side plate, the first MBR flat-plate filtering membrane mounting plate and the second MBR flat-plate filtering membrane mounting plate.

Compared with the prior art, the utility model discloses dull and stereotyped filtration membrane module of MBR with limit structure of embodiment has following beneficial effect:

the utility model discloses dull and stereotyped filtration membrane module of MBR with limit structure is through setting up a plurality of lower limit structure spare between two adjacent dull and stereotyped filtration membrane bottoms of MBR respectively for lower limit structure spare with lower limit structure design, can utilize the dull and stereotyped filtration membrane substrate of MBR and insert the structural rigidity of membrane side shield substrate self for the stop device of supporter, can be very convenient process production and installation use and spacing more accurate, saved material and cost of labor.

Additional features of the invention will be set forth in part in the description which follows. Additional features of the invention will be set forth in part in the description which follows and in part will be apparent to those having ordinary skill in the art upon examination of the following and the accompanying drawings or may be learned from the manufacture or operation of the embodiments. The features of the present disclosure may be realized and attained by practice or use of various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. Like reference symbols in the various drawings indicate like elements. Wherein the content of the first and second substances,

fig. 1 is a schematic view of a MBR flat-plate filtration membrane module with a limiting structure according to some embodiments of the present invention in use;

fig. 2 is a schematic diagram of a plurality of MBR flat filter membranes arranged in parallel and spaced apart in a MBR flat filter membrane module with a limiting structure according to some embodiments of the present invention;

fig. 3 is a schematic structural view of an MBR flat filter membrane module with a limiting structure according to some embodiments of the present invention;

fig. 4 is a schematic structural view of a lower limiting structure in an MBR flat-plate filtration membrane module with a limiting structure according to some embodiments of the present invention;

fig. 5 is a schematic view illustrating a connection state between an MBR flat filtering membrane and a lower limiting structure in an MBR flat filtering membrane module with a limiting structure according to some embodiments of the present invention;

fig. 6 is a schematic view illustrating a connection state between an MBR flat filtering membrane and a lower limiting structure in an MBR flat filtering membrane module with a limiting structure according to another embodiment of the present invention;

fig. 7 is a schematic illustration of a first MBR flat filter membrane mounting plate in a MBR flat filter membrane module with a spacing structure according to some embodiments of the present disclosure;

fig. 8 is a schematic view of an MBR flat filter membrane module with a limiting structure according to some embodiments of the present disclosure, wherein the MBR flat filter membrane is mounted on a first MBR flat filter membrane mounting plate;

fig. 9 is a top view of an MBR flat filter membrane module with a limiting structure according to some embodiments of the present disclosure, wherein the MBR flat filter membrane is mounted on a first MBR flat filter membrane mounting plate and a second MBR flat filter membrane mounting plate;

fig. 10 is a schematic view of a lower limiting structure in an MBR flat-panel filtration membrane module with a limiting structure according to still other embodiments of the present invention;

fig. 11 is a schematic view of a MBR flat filter membrane module with a spacing structure according to still other embodiments of the present invention, wherein the lower spacing structure is mounted on the first MBR flat filter membrane mounting plate;

fig. 12 is a schematic diagram of an upper limiting structure formed by limiting meshes in an MBR flat-plate filtration membrane module with a limiting structure according to still other embodiments of the present invention;

fig. 13 is a schematic diagram of an upper limit structure of an MBR flat panel filtration membrane module with a limit structure mounted above a plurality of MBR flat panel filtration membranes according to still further embodiments of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that if the terms "first", "second", etc. are used in the description and claims of the present invention and in the accompanying drawings, they are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, if the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like are referred to, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, in the present disclosure, the terms "mounted," "disposed," "provided," "connected," "sleeved," and the like should be construed broadly if they are referred to. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment of the utility model discloses dull and stereotyped filtration membrane module of MBR with limit structure.

As shown in fig. 1, the MBR flat filtering membrane module with a limiting structure may include a plurality of MBR flat filtering membrane sheets 100, an upper limiting structure, a lower limiting structure, and a plurality of membrane brushes 400.

Wherein, a plurality of MBR flat-plate filtering membrane sheets 100 are arranged in parallel at intervals, as shown in FIG. 2. The upper limit structure is disposed at the upper ends of the plurality of MBR flat filter membranes 100, as shown in fig. 13. The lower limiting structure comprises a plurality of lower limiting structures 300 respectively arranged between the bottoms of two adjacent MBR flat filter membranes 100, as shown in fig. 6, 8, 11. The plurality of membrane brushes 400 are respectively disposed between two adjacent MBR flat filter membranes 100 and the upper and lower limiting structures 300, as shown in fig. 1.

In some embodiments of the present disclosure, as shown in fig. 4, the lower limit structure 300 may include a connection portion 310 and a mesh-shaped limit portion 320. The mesh-shaped limiting portion 320 and the connecting portion 310 are perpendicular to each other. The connection portion 310 is connected to the bottom side of the MBR flat filtering membrane 100 such that the mesh-shaped stopper portion 320 is perpendicular to the MBR flat filtering membrane 100, as shown in fig. 5. Illustratively, the connection portion 310 may be connected to the MBR flat-plate filter membrane 100 by screwing, riveting, welding, clamping, ironing, and the like. In one embodiment of the present disclosure, the connection portion 310 is connected to the MBR flat-plate filter membrane 100 by screws or bolts. Specifically, at least one first connection hole 130 is provided at the lower portion of the MBR flat filter membrane 100, as shown in fig. 3; a second connection hole 330 corresponding to the first connection hole 130 is provided on the connection part 310 of the lower limit structure 300; screws or bolts penetrate through the first connection holes 130 and the corresponding second connection holes 330 to realize the connection between the connection part 310 and the MBR flat plate filter membrane 100, as shown in fig. 5.

Further, as shown in fig. 3, a handle 110 and a suction nozzle 120 are provided at the top end of the MBR flat filter membrane 100.

In other embodiments of the present disclosure, the lower limiting structure 300 may be a limiting mesh 330. The limiting mesh 330 is vertically arranged at the bottom of the MBR flat-plate filter membrane 100 in an integral forming manner (e.g., injection molding, etc.), as shown in fig. 6.

Further, in an embodiment of the present disclosure, the MBR flat filtering membrane module with the limiting structure may further include a first MBR flat filtering membrane mounting plate 510 and a second MBR flat filtering membrane mounting plate 520.

A plurality of first clamping grooves 511 which are parallel to each other are arranged on the first MBR flat-plate filtering membrane mounting plate 510 at intervals along the longitudinal direction. A plurality of second clamping grooves 521 which are parallel to each other are longitudinally arranged on the second MBR flat-plate filtering membrane mounting plate 520 at intervals. The first MBR flat filter membrane mounting plate 510 and the second MBR flat filter membrane mounting plate 520 are disposed opposite to each other such that each first card slot 511 corresponds to one second card slot 521. The plurality of MBR flat filter membranes 100 are respectively clamped in the corresponding first clamping groove 511 and second clamping groove 521, as shown in fig. 7, 8 and 9.

In still other embodiments of the present disclosure, as shown in fig. 10, the lower limiting structure 300 includes a net limiting plate 340, a first mounting block 350 and a second mounting block 360. The first mounting block 350 is provided at one end of the mesh-shaped restriction plate 340, and the second mounting block 360 is provided at the other end of the mesh-shaped restriction plate 340. As shown in fig. 11, the first mounting block 350 is connected between two adjacent first clamping slots 511 on the first MBR plate filter membrane mounting plate 510, and the second mounting block 360 is connected between two adjacent second clamping slots 521 on the second MBR plate filter membrane mounting plate 520.

Illustratively, the first and second mounting blocks 350 and 360 and the first and second MBR flat filtering membrane mounting plates 510 and 520 may be connected by screwing, riveting, welding, clamping, ironing, or the like. In one embodiment of the present disclosure, the first mounting block 350 and the first MBR flat filter membrane mounting plate 510, and the second mounting block 360 and the second MBR flat filter membrane mounting plate 520 are connected together by screws. Specifically, the first mounting block 350 and the second mounting block 360 are provided with a third connecting hole 370, as shown in fig. 10; screws or bolts pass through the third connection holes 370 to be connected to the MBR flat filtering membrane mounting plates, so as to realize the connection between the first mounting block 350 and the first MBR flat filtering membrane mounting plate 510 and between the second mounting block 360 and the second MBR flat filtering membrane mounting plate 520, as shown in fig. 11.

In the disclosed embodiment, as shown in fig. 12, the upper limiting structure includes a mesh cover 210. The mesh cover 210 includes a mesh-shaped barrier 211, a first frame 212 provided at one end of the mesh-shaped barrier 211, and a second frame 213 provided at the other end of the mesh-shaped barrier 211. The first frame 212 and the second frame 213 are further provided with an attachment portion 214. Further, a plurality of receiving grooves 215 are provided in the mesh baffle 211. Each of the receiving grooves 215 is positioned to correspond to the positions of the handle 110 and the suction nozzle 120 of one MBR plate filter membrane 100, respectively, as shown in fig. 13.

In the mounted state, the upper limiting structure is mounted on the membrane holder. Specifically, mounting holes are formed in the mounting portions 214 of the first frame 212 and the second frame 213, and the upper limit structure can be mounted and fixed on the membrane holder through the mounting holes and screws or bolts. The upper limit structure is covered on a plurality of MBR flat filtering membranes 100 which are arranged in parallel at intervals, the membrane brush 400 between two adjacent MBR flat filtering membranes 100 is prevented from running out from the upper side, and the handle 110 and the suction nozzle 120 on the MBR flat filtering membranes 100 are accommodated in the accommodating groove 215 at the corresponding positions.

Further, in the embodiment of the present disclosure, the MBR flat filtering membrane assembly with the limiting structure further includes a first side plate 610 and a second side plate 620. As shown in fig. 1, the first side plate 610 and the second side plate 620 are respectively disposed at two sides of the first MBR flat filtering membrane mounting plate 510 and the second MBR flat filtering membrane mounting plate 520, so that a box structure is formed among the first side plate 610, the second side plate 620, the first MBR flat filtering membrane mounting plate 510, and the second MBR flat filtering membrane mounting plate 520.

In the MBR flat filtering membrane module with the limiting structure according to the embodiment of the present disclosure, the plurality of MBR flat filtering membranes 100 are inserted between the first side plate 610, the second side plate 620, the first MBR flat filtering membrane mounting plate 510, and the second MBR flat filtering membrane mounting plate 520 to form a box structure, so that the plurality of MBR flat filtering membranes 100 are arranged in parallel at intervals to form a filtering space; the lower limiting structure 300 is arranged at the lower part between two adjacent MBR flat filtering membranes 100 to form a lower limiting structure, the upper covering net covers 210 of the plurality of MBR flat filtering membranes 100 to form an upper limiting structure, and at least one membrane brush 400 is put between two adjacent MBR flat filtering membranes 100. In an actual sewage treatment environment, when the aeration scouring main pipe 700 below the membrane support is aerated, the upward moving mixed water airflow pushes the membrane brush 400 to perform disordered movement between the two adjacent MBR flat plate filtering membranes 100 and the upper limiting structure and the lower limiting structure, when the aeration scouring main pipe 700 below the membrane support stops aeration scouring, the membrane brush 400 sinks to the upper side of the lower limiting structure 300 under the action of the self weight of the membrane brush 400, so that the lower limiting structure 300 and the net cover 210 effectively limit the membrane brush 400, the membrane brush 400 can be always limited to perform disordered movement between the lower limiting structure 300 and the net cover 210, and the MBR flat plate filtering membranes 100 around the membrane brush 400 can be subjected to disordered collision in the movement process, so that the aim of cleaning the flat plate filtering membranes 100 is fulfilled.

Additionally, the utility model discloses dull and stereotyped filtration membrane module of MBR with limit structure is through setting up a plurality of lower limit structure spare between two adjacent dull and stereotyped filtration membrane piece bottoms respectively for lower limit structure spare with lower limit structure design, can utilize the dull and stereotyped filtration membrane substrate of MBR and insert the stop device that the structural rigidity of membrane side shield substrate self is the supporter, can be very convenient process production and installation use and spacing more accurate, saved material and cost of labor.

It should be noted that all of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

In addition, the above embodiments are exemplary, and those skilled in the art can devise various solutions in light of the disclosure, which are also within the scope of the disclosure and the protection scope of the present invention. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (9)

1. Dull and stereotyped filtration membrane module of MBR with limit structure, its characterized in that, dull and stereotyped filtration membrane module of MBR with limit structure includes:

the MBR flat filtering membranes (100) are arranged in parallel at intervals;

an upper limit structure disposed at upper ends of the plurality of MBR flat plate filtering membranes (100);

the lower limiting structure comprises a plurality of lower limiting structural members (300) which are respectively arranged between the bottoms of two adjacent MBR flat plate filtering membranes (100);

and

the membrane brush assembly comprises a plurality of membrane brushes (400), wherein the membrane brushes (400) are respectively arranged between two adjacent MBR flat plate filtering membranes (100), the upper limiting structure and the lower limiting structure (300).

2. The MBR flat-plate filtration membrane module with the limiting structure according to claim 1, wherein the lower limiting structure (300) comprises a connecting portion (310) and a mesh-shaped limiting portion (320); the reticular limiting part (320) and the connecting part (310) are arranged vertically;

the connecting part (310) is connected to the bottom side of the MBR flat plate filtering membrane (100) so that the mesh-shaped limiting part (320) is perpendicular to the MBR flat plate filtering membrane (100).

3. The MBR flat panel filtration membrane module with a limiting structure according to claim 1, wherein the lower limiting structure (300) is a limiting mesh (330);

the limiting net piece (330) is vertically arranged at the bottom of the MBR flat plate filtering membrane (100) in an integrally forming mode.

4. The MBR flat filter membrane module with a limiting structure of claim 1, further comprising a first MBR flat filter membrane mounting plate (510) and a second MBR flat filter membrane mounting plate (520);

a plurality of first clamping grooves (511) which are parallel to each other are arranged on the first MBR flat filtering membrane mounting plate (510) at intervals along the longitudinal direction;

a plurality of second clamping grooves (521) which are parallel to each other are formed in the second MBR flat plate filtering membrane mounting plate (520) at intervals along the longitudinal direction;

the first MBR flat filter membrane mounting plate (510) and the second MBR flat filter membrane mounting plate (520) are oppositely arranged, so that each first clamping groove (511) corresponds to one second clamping groove (521);

the MBR flat filtering membranes (100) are respectively clamped in the corresponding first clamping groove (511) and the corresponding second clamping groove (521).

5. The MBR flat panel filtration membrane module with a limiting structure according to claim 4, wherein the lower limiting structure (300) comprises a mesh limiting plate (340), a first mounting block (350) and a second mounting block (360);

the first mounting block (350) is arranged at one end of the reticular limiting plate (340), and the second mounting block (360) is arranged at the other end of the reticular limiting plate (340);

the first mounting block (350) is connected between two adjacent first clamping grooves (511) on the first MBR flat filtering membrane mounting plate (510), and the second mounting block (360) is connected between two adjacent second clamping grooves (521) on the second MBR flat filtering membrane mounting plate (520).

6. The MBR flat sheet filtration membrane module according to claim 1, wherein the upper limiting structure comprises a mesh cover (210);

the net cover (210) comprises a net-shaped baffle plate (211), a first frame (212) arranged at one end of the net-shaped baffle plate (211) and a second frame (213) arranged at the other end of the net-shaped baffle plate (211);

an installation part (214) is further provided on the first frame (212) and the second frame (213).

7. The MBR flat filter membrane module with the limiting structure according to claim 6, wherein a handle (110) and a suction nozzle (120) are arranged at the top end of the MBR flat filter membrane (100).

8. The MBR flat-plate filtration membrane module with the limiting structure according to claim 7, wherein a plurality of accommodating grooves (215) are further arranged on the mesh-shaped baffle plate (211);

the position of each accommodating groove (215) corresponds to the positions of the handle (110) and the suction nozzle (120) on one MBR flat-plate filter membrane (100).

9. The MBR flat filter membrane module with the limiting structure, according to claim 4, further comprising a first side plate (610) and a second side plate (620);

the first side plate (610) and the second side plate (620) are respectively arranged on two sides of the first MBR flat filtering membrane mounting plate (510) and the second MBR flat filtering membrane mounting plate (520), so that a box structure is formed among the first side plate (610), the second side plate (620), the first MBR flat filtering membrane mounting plate (510) and the second MBR flat filtering membrane mounting plate (520).

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