Flat sheet membrane component for MBR (Membrane Bioreactor)

Abstract

The utility model discloses a flat membrane component for MBR (membrane bioreactor), which relates to the technical field of sewage treatment and comprises two groups of aeration frames, membrane frames are arranged at the tops of the two groups of aeration frames, flat membrane bodies are arranged in the membrane frames in an array manner, and the surfaces of the two membrane frames are fixedly connected with a first support leg and a second support leg respectively. A positioning shell is fixedly connected to one side of the first supporting leg, a first positioning seat and a second positioning seat are fixedly connected to the bottoms of the first supporting leg and the second supporting leg respectively, and adjusting assemblies are arranged at the bottoms of the first positioning seat and the second positioning seat. The utility model has the beneficial effects that the two groups of aeration frames and membrane frames can be conveniently matched and quickly assembled through the mounting assembly, part of screws are replaced through a plug pin type quick-release structure, quick assembly is realized, and adjustable nuts are arranged through the adjusting assembly, so that the use angle and height of the bottoms of the aeration frames can be conveniently adjusted.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a flat sheet membrane module for MBR. Background Technology

[0002] In the fields of wastewater treatment and water resource reuse, MBR, also known as membrane bioreactor, is a novel water treatment technology that combines membrane separation units with biological treatment units. Based on membrane structure, it can be classified into flat sheet membranes, tubular membranes, and hollow fiber membranes, etc.; based on membrane pore size, it can be classified into microfiltration membranes, ultrafiltration membranes, nanofiltration membranes, reverse osmosis membranes, etc.

[0003] Currently, the MBR flat-sheet membrane modules widely used in wastewater treatment are traditionally installed using screws, a method that presents difficulties in adjustment. In actual operation, uneven aeration distribution at the bottom of the membrane frame occurs if the installation is not level: insufficient aeration on the lower side leads to sludge accumulation and increased membrane fouling, while excessive aeration on the higher side results in energy waste. Ultimately, this leads to decreased membrane flux, deterioration of effluent quality, increased operating costs, and shortened membrane lifespan. Furthermore, in some wastewater treatment scenarios, two MBR flat-sheet membrane modules need to be stacked for assembly, but the current method still uses screw fixing, requiring specific tools for maintenance and significantly reducing ease of maintenance. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A flat sheet membrane module for MBR includes two sets of aeration frames. Each set of aeration frames has a membrane frame at its top. Flat sheet membranes are arranged in an array inside the membrane frames. A first support leg and a second support leg are fixedly connected to the surfaces of the two membrane frames, respectively. A positioning shell is fixedly connected to one side of the first support leg. A first positioning seat and a second positioning seat are fixedly connected to the bottom of the first and second support legs, respectively. An adjustment component is provided at the bottom of both the first and second positioning seats. An installation component is fixedly connected inside the positioning shell.

[0007] The mounting assembly includes a spring and a first toothed plate. The spring is fixed inside one side of the positioning housing, the first toothed plate is fixed to the bottom of the first positioning seat, a second toothed plate is fixedly connected to one side of the spring, one side of the second toothed plate is engaged with the first toothed plate, and a pull rod extending through to the outside of the positioning housing is fixedly connected to one side of the second toothed plate.

[0008] As a preferred embodiment of the flat sheet membrane module for MBR described in this utility model, wherein: an insert shell is fixedly connected inside the positioning shell, and an insert rod for use with the insert shell is fixedly connected to the bottom of the first positioning seat.

[0009] As a preferred embodiment of the flat sheet membrane module for MBR described in this utility model, a reinforcing block is fixedly connected to the bottom of the positioning shell, and one side of the reinforcing block is fixedly connected to the first support leg.

[0010] As a preferred embodiment of the flat sheet membrane module for MBR described in this utility model, wherein: a connecting plate is provided on one side of both the first support leg and the second support leg, and the connecting plate has a connecting hole inside.

[0011] In a preferred embodiment of the flat sheet membrane module for MBR described in this utility model, the connecting plates are respectively fixed to one side of the first support leg and the second support leg, and the connecting plates are symmetrically arranged.

[0012] As a preferred embodiment of the flat membrane module for MBR described in this utility model, the adjustment component includes a threaded rod and a limiting frame. Both threaded rods are rotatably connected inside the first positioning seat and the second positioning seat. The limiting frame is fixed to the bottom of the first support leg and the second support leg. The top of the surface of the threaded rod extends through to the top of the limiting frame. A torsion block is fixedly connected to the top of the threaded rod.

[0013] In a preferred embodiment of the flat sheet membrane module for MBR described in this utility model, the threaded rod is rotatably connected to the inside of the limiting frame, and a limiting ring fixed to the limiting frame is sleeved on the surface of the threaded rod.

[0014] As a preferred embodiment of the flat sheet membrane assembly for MBR described in this utility model, four limiting rods are fixedly connected to the bottom of the limiting frame, and the first positioning seat and the second positioning seat are both provided with limiting grooves for use with the limiting rods.

[0015] In a preferred embodiment of the flat sheet membrane module for MBR described in this utility model, a retaining ring is fixedly connected to the bottom of the limiting rod, and the surface of the retaining ring is slidably connected to the inside of the limiting groove.

[0016] In a preferred embodiment of the flat sheet membrane assembly for MBR described in this utility model, a mounting plate is fixedly connected to the bottom of the second positioning seat, and the mounting plate has mounting holes inside.

[0017] The advantages of this utility model are as follows: the installation components facilitate the quick assembly of the two sets of aeration frames and the membrane frame; the pin-type quick-release structure replaces some screws to achieve rapid assembly; and the adjustable components are equipped with adjustable nuts, which facilitates the adjustment of the usage angle and height of the bottom of the aeration frame. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is an overall structural diagram of a flat-sheet membrane module used in MBR.

[0020] Figure 2 Another view of the overall structure of a flat-sheet membrane module used in MBR.

[0021] Figure 3 This is a structural diagram of the mounting assembly for a flat sheet membrane module used in MBR.

[0022] Figure 4 This is a structural diagram of the regulating component for a flat-sheet membrane module used in MBR.

[0023] The following are the labeling elements in the diagram: 1. Aeration frame; 2. Membrane frame; 3. Flat membrane body; 4. First support leg; 41. Second support leg; 5. Positioning shell; 6. First positioning seat; 61. Second positioning seat; 7. Adjustment component; 701. Threaded rod; 702. Limiting frame; 703. Torsion block; 704. Limiting ring; 705. Limiting rod; 706. Limiting groove; 707. Retaining ring; 8. Mounting component; 801. Spring; 802. First toothed plate; 803. Second toothed plate; 804. Pull rod; 9. Insert shell; 10. Insert rod; 11. Reinforcing block; 12. Connecting plate; 13. Connecting hole; 14. Mounting plate; 15. Mounting hole. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Example 1:

[0028] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a flat sheet membrane module for MBR. The flat sheet membrane module for MBR includes an adjustment component 7 and an installation component 8. The installation component 8 facilitates the quick assembly of two sets of aeration frames 1 and membrane frames 2. The quick-release structure with pins replaces some screws to achieve quick assembly. The adjustment component 7 is equipped with an adjustable nut, which facilitates the adjustment of the usage angle and height of the bottom of the aeration frame 1.

[0029] Both sets of aeration frames 1 are equipped with membrane frames 2 at their tops. Flat membrane bodies 3 are arranged in an array inside the membrane frames 2. The surfaces of the two membrane frames 2 are respectively fixedly connected to a first support leg 4 and a second support leg 41. A positioning shell 5 is fixedly connected to one side of the first support leg 4. The bottoms of the first support leg 4 and the second support leg 41 are respectively fixedly connected to a first positioning seat 6 and a second positioning seat 61. An adjustment component 7 is provided at the bottom of both the first positioning seat 6 and the second positioning seat 61. An installation component 8 is fixedly connected inside the positioning shell 5.

[0030] The MBR flat sheet membrane module consists of an aeration frame 1, a membrane frame 2, and a flat sheet membrane 3. Its working principle is as follows: During wastewater treatment, the aeration frame 1 generates a uniform airflow, forming an upward flow of air bubbles within the membrane frame 2. These bubbles provide oxygen to the microorganisms and also have a scouring effect on the surface of the flat sheet membrane 3. Under negative pressure suction, clean water passes through the micropores of the flat sheet membrane 3 to become permeate, while suspended solids, bacteria, and other pollutants are effectively retained, achieving efficient solid-liquid separation. The membrane frame 2 provides structural support for the entire module and ensures uniform aeration distribution, thereby maintaining stable membrane flux and delaying membrane fouling. This is existing technology, readily understood by those skilled in the art, and will not be elaborated upon here. The first support leg 4 and the second support leg 41 are respectively fixed to the surface of the membrane frame 2. With the use of the adjustment component 7 and the first positioning seat 6 and the second positioning seat 61, the height of the membrane frame 2 can be adjusted. The installation component 8 facilitates quick snap-fit ​​assembly of two sets of MBR flat sheet membrane modules, improving installation efficiency.

[0031] The mounting assembly 8 includes a spring 801 and a first toothed plate 802. The spring 801 is fixed inside the positioning housing 5 on one side, and the first toothed plate 802 is fixed to the bottom of the first positioning seat 6. A second toothed plate 803 is fixedly connected to one side of the spring 801. One side of the second toothed plate 803 is engaged with the first toothed plate 802. A pull rod 804 that extends through to the outside of the positioning housing 5 is fixedly connected to one side of the second toothed plate 803.

[0032] First, the MBR flat membrane module located at the top moves the second support leg 41 in conjunction with the adjustment component 7 to lower the first positioning seat 6. At this time, the first toothed plate 802 at the bottom of the first positioning seat 6 will be inserted into the interior of the positioning shell 5, and the inclined surface of the first toothed plate 802 will contact and press against the inclined surface of the second toothed plate 803. At this time, the second toothed plate 803 is compressed by the spring 801. As the second toothed plate 803 moves, it will drive the pull rod 804 to move outward of the positioning shell 5 until the first toothed plate 802 is completely inserted into the interior of the positioning shell 5. Then, the spring 801 drives the second toothed plate 803 to reset and lock onto the surface of the first toothed plate 802, thereby completing the fixed installation.

[0033] Example 2:

[0034] Reference Figures 2-4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, the positioning shell 5 is internally fixedly connected to the insert shell 9, and the bottom of the first positioning seat 6 is fixedly connected to the insert rod 10 that is used in conjunction with the insert shell 9.

[0036] With the insertion shell 9 and the insertion rod 10 working together, when the first positioning seat 6 drives the insertion rod 10 down into the interior of the positioning shell 5, the insertion rod 10 will also be inserted into the interior of the insertion shell 9, thereby working with the installation component 8 to improve the installation strength and ensure the stability of the stacked installation of the two MBR flat membrane modules.

[0037] Specifically, a reinforcing block 11 is fixedly connected to the bottom of the positioning shell 5, and one side of the reinforcing block 11 is fixedly connected to the first support leg 4.

[0038] By fixing the reinforcing block 11 between the positioning shell 5 and the first support leg 4, the connection strength between the two can be improved, thereby ensuring its stability and durability after long-term use.

[0039] Specifically, a connecting plate 12 is provided on one side of both the first support leg 4 and the second support leg 41. The connecting plate 12 has a connecting hole 13 inside.

[0040] The connecting plate 12 has a connecting hole 13 inside, which facilitates the hoisting of the entire device with ropes.

[0041] Specifically, the connecting plates 12 are fixed to one side of the first support leg 4 and the second support leg 41 respectively, and the connecting plates 12 are arranged symmetrically.

[0042] The connecting plate 12 is symmetrically welded to the surface of the first support leg 4, so that four ropes can be passed through the connecting hole 13 for hoisting, ensuring the stability during hoisting.

[0043] Specifically, the adjustment assembly 7 includes a threaded rod 701 and a limiting frame 702. Both threaded rods 701 are rotatably connected to the inside of the first positioning seat 6 and the second positioning seat 61. The limiting frames 702 are fixed to the bottom of the first support leg 4 and the second support leg 41. The top of the surface of the threaded rod 701 extends through to the top of the limiting frame 702. A torsion block 703 is fixedly connected to the top of the threaded rod 701.

[0044] When the user needs to adjust the height and tilt of the first support leg 4, the wrench can be used to turn the torsion block 703. At this time, the torsion block 703 will drive the threaded rod 701 to rotate inside the limit frame 702. However, as the threaded rod 701 rotates inside the second positioning seat 61, the limit frame 702 will drive the first support leg 4 to rise, thereby adjusting the usage height of the first support leg 4.

[0045] Example 3:

[0046] Reference Figure 4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0047] Specifically, the threaded rod 701 and the limiting frame 702 are rotatably connected, and the surface of the threaded rod 701 is fitted with a limiting ring 704 that is fixed to the limiting frame 702.

[0048] By fixing the limiting ring 704 to the limiting frame 702, the rotation of the threaded rod 701 can be limited, ensuring the stability of the threaded rod 701 during rotation. Furthermore, the threaded rod 701 and the limiting frame 702 are internally rotatably connected, which can prevent the threaded surface from causing displacement of the limiting frame 702.

[0049] Specifically, the bottom of the limiting frame 702 is fixedly connected with four limiting rods 705, and the first positioning seat 6 and the second positioning seat 61 are both provided with limiting grooves 706 for use with the limiting rods 705.

[0050] By fixing the limiting rod 705 to the limiting frame 702, when the limiting frame 702 rises, it will move within the limiting groove 706 to limit the movement, thereby ensuring that the threaded rod 701 rises in a limited position.

[0051] Specifically, a retaining ring 707 is fixedly connected to the bottom of the limiting rod 705, and the surface of the retaining ring 707 is slidably connected to the inside of the limiting groove 706.

[0052] By having the surface of the retaining ring 707 fit against the limiting groove 706, the stability of the limiting rod 705 during its ascent can be ensured, and the limiting groove 706 can limit the final stroke of the retaining ring 707, preventing the limiting rod 705 from dislodging from the interior of the first positioning seat 6 and the second positioning seat 61.

[0053] Specifically, the bottom of the second positioning seat 61 is fixedly connected to a mounting plate 14, and the mounting plate 14 has mounting holes 15 inside.

[0054] The second positioning seat 61 is fixed to the mounting plate 14 at its bottom, and the mounting plate 14 has mounting holes 15 inside. When the user needs to position the device, the second positioning seat 61 can be fixed to the ground by bolts through the mounting holes 15 to ensure the stability of the entire device.

[0055] Working principle: First, when the user needs to adjust the height of the second positioning seat 61 fixed to the ground, a wrench can be used to turn the torsion block 703. At this time, the torsion block 703 will drive the threaded rod 701 to rotate inside the limiting frame 702. As the threaded rod 701 rotates inside the second positioning seat 61, it will cause the limiting frame 702 to drive the first support leg 4 to rise. When the limiting frame 702 moves, it will drive the limiting rod 705 and the retaining ring 707 to move within the limiting groove 706, ensuring that the limiting frame 702 rises to the limit, thereby adjusting the height of the first support leg 4. Then, when the user needs to assemble the two sets of MBR flat membrane modules... When in use, the MBR flat membrane module located at the top is first used to drive the second support leg 41 in conjunction with the adjustment component 7 to lower the first positioning seat 6. At this time, the first toothed plate 802 at the bottom of the first positioning seat 6 will be inserted into the interior of the positioning shell 5, and the inclined surface of the first toothed plate 802 will contact and press against the inclined surface of the second toothed plate 803. At this time, the second toothed plate 803 is compressed by the force on the spring 801. As the second toothed plate 803 moves, it will drive the pull rod 804 to move to the outside of the positioning shell 5 until the first toothed plate 802 is completely inserted into the interior of the positioning shell 5. Then, the spring 801 drives the second toothed plate 803 to reset and lock onto the surface of the first toothed plate 802, thereby completing the fixed installation.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A flat-sheet membrane module for MBR, comprising two sets of aeration frames (1), characterized in that: Both sets of aeration frames (1) are provided with membrane frames (2) at the top. Flat membrane bodies (3) are arranged in an array inside the membrane frames (2). The surfaces of the two membrane frames (2) are respectively fixedly connected with a first support leg (4) and a second support leg (41). A positioning shell (5) is fixedly connected to one side of the first support leg (4). A first positioning seat (6) and a second positioning seat (61) are respectively fixedly connected to the bottom of the first support leg (4) and the second support leg (41). An adjustment component (7) is provided at the bottom of the first positioning seat (6) and the second positioning seat (61). An installation component (8) is fixedly connected inside the positioning shell (5). The mounting assembly (8) includes a spring (801) and a first toothed plate (802). The spring (801) is fixed to one side inside the positioning shell (5). The first toothed plate (802) is fixed to the bottom of the first positioning seat (6). A second toothed plate (803) is fixedly connected to one side of the spring (801). One side of the second toothed plate (803) is engaged with the first toothed plate (802). A pull rod (804) that extends through to the outside of the positioning shell (5) is fixedly connected to one side of the second toothed plate (803).

2. The flat-sheet membrane module for MBR as described in claim 1, characterized in that: The positioning shell (5) is fixedly connected to the insert shell (9), and the bottom of the first positioning seat (6) is fixedly connected to the insert rod (10) used in conjunction with the insert shell (9).

3. The flat-sheet membrane module for MBR as described in claim 1, characterized in that: The bottom of the positioning shell (5) is fixedly connected to a reinforcing block (11), and one side of the reinforcing block (11) is fixedly connected to the first support leg (4).

4. The flat-sheet membrane module for MBR as described in claim 1, characterized in that: A connecting plate (12) is provided on one side of both the first support leg (4) and the second support leg (41), and a connecting hole (13) is provided inside the connecting plate (12).

5. The flat-sheet membrane module for MBR as described in claim 4, characterized in that: The connecting plates (12) are fixed to one side of the first support leg (4) and the second support leg (41), respectively, and the connecting plates (12) are symmetrically arranged.

6. The flat-sheet membrane module for MBR as described in claim 1, characterized in that: The adjustment assembly (7) includes a threaded rod (701) and a limiting frame (702). Both threaded rods (701) are rotatably connected to the inside of the first positioning seat (6) and the second positioning seat (61). The limiting frames (702) are fixed to the bottom of the first support leg (4) and the second support leg (41). The top of the surface of the threaded rod (701) extends through to the top of the limiting frame (702). A torsion block (703) is fixedly connected to the top of the threaded rod (701).

7. The flat-sheet membrane module for MBR as described in claim 6, characterized in that: The threaded rod (701) is rotatably connected to the inside of the limiting frame (702), and the surface of the threaded rod (701) is fitted with a limiting ring (704) that is fixed to the limiting frame (702).

8. The flat-sheet membrane module for MBR as described in claim 7, characterized in that: The bottom of the limiting frame (702) is fixedly connected with four limiting rods (705), and the first positioning seat (6) and the second positioning seat (61) are both provided with limiting grooves (706) for use with the limiting rods (705).

9. The flat-sheet membrane module for MBR as described in claim 8, characterized in that: The bottom of the limiting rod (705) is fixedly connected to a retaining ring (707), and the surface of the retaining ring (707) is slidably connected to the inside of the limiting groove (706).

10. The flat-sheet membrane module for MBR as described in claim 1, characterized in that: The bottom of the second positioning seat (61) is fixedly connected to a mounting plate (14), and the mounting plate (14) has mounting holes (15) inside.

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