MBR (Membrane Bioreactor) membrane assembly and sewage treatment device
Through the three-part limit MBR membrane module design, the problems of unstable connections and affected water production performance of existing MBR membrane modules are solved, and the effect of efficient water effluent and simplified airtightness detection is achieved.
Patent Information
- Application Number
- CN202422140649.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-02
AI Technical Summary
There are problems with instability and water production performance during the connection and fixation process of existing hollow fiber MBR membrane modules, especially the water production single head of the curtain membrane module is prone to damage and gas-water collusion, and the existing fixation method is not easy to perform airtightness detection.
The three-part limit MBR membrane module design is adopted. The head and tail of the membrane wire are fixed in the membrane shell and connected to the water production pipe. The cavity limit is used in the middle to make the membrane wire bent, simplifying the fixing process and improving stability, reducing the connection area, and simplifying the airtightness detection.
The efficient water effluent stability of the membrane wire is achieved, the fixing process is simplified, the component setting is reduced, and the convenience of airtightness detection and the stability of water production is improved.
Smart Images
Figure CN223082577U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water treatment, and particularly relates to an MBR membrane module and a sewage treatment device. Background Art
[0002] The currently applied mainstream hollow fiber MBR membrane modules mainly include curtain membrane modules and columnar membrane modules. In the actual application process, the curtain membrane mostly uses single-head water production on one side, combined with a sealing ring and a stainless steel square pipe for mixed water production. In the application practice process, unstable phenomena such as damage to the single-head water production and gas-water intermixing caused by mixed connection with the aeration pipeline may occur. If the upper and lower two ends are glued and the upper and lower parts produce water together, there are many connection areas involved, and it is not easy to conduct gas inspection; currently, the fixing methods mostly use stacking pressure, sinking insertion, or fixing the single-head water production on one side with a stainless steel bolt on one side. This connection method mostly involves mixed water production of the membrane module and the fixed pipe fittings, which is not stable and the water production performance is affected. Summary of the Utility Model
[0003] The purpose of the utility model is to overcome one or more deficiencies in the prior art, and provide an improved MBR membrane module and a sewage treatment device including the improved MBR membrane module.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is:
[0005] An MBR membrane module, the MBR membrane module includes a water production pipe and an MBR membrane mechanism. The MBR membrane mechanism includes a first fixed membrane shell, a second fixed membrane shell with a cavity, a third fixed membrane shell, and membrane filaments. The membrane filaments pass through the cavity;
[0006] Wherein, the membrane filaments include a head end, a middle part, and a tail end. The head end is arranged in the first fixed membrane shell and is communicated with the water production pipe. The tail end is arranged in the third fixed membrane shell and is communicated with the water production pipe. At least part of the middle part is located in the cavity, and the part is in a bent state.
[0007] In some embodiments of the utility model, the cavity is a U-shaped cavity.
[0008] In some embodiments of the utility model, the first fixed membrane shell and the second fixed membrane shell are respectively located on opposite sides of the MBR membrane module, and the third fixed membrane shell and the first fixed membrane shell are located on the same side of the MBR membrane module.
[0009] In some embodiments of the utility model, the third fixed membrane shell and the first fixed membrane shell are arranged in parallel, and both are located below the water production pipe.
[0010] In some embodiments of the present utility model, the second fixed membrane housing includes n arc-shaped plates arranged in parallel and at least a locking assembly for fixing the n arc-shaped plates, and a cavity is formed between two adjacent arc-shaped plates.
[0011] In some embodiments of the present utility model, the central angle corresponding to the arc-shaped plate is 120° - 180°, specifically including but not limited to 120°, 125°, 130°, 135°, 140°, 145°, 150°, 155°, 160°, 165°, 170°, 175°, 180°, etc.
[0012] Further, the locking assembly includes a locking rod and locking holes formed on each arc-shaped plate, and the locking rod is inserted into the locking holes.
[0013] Further, the second fixed membrane housing further includes a reinforcing rod, the cross-section of the reinforcing rod is arc-shaped, the reinforcing rod is arranged in parallel with the arc-shaped plates and is located inside the n arc-shaped plates, and the reinforcing rod is relatively fixed to the n arc-shaped plates through the locking assembly.
[0014] Further, the MBR membrane module further includes a support frame, the locking assembly can fix the n arc-shaped plates on the support frame, and the water production pipe, the first fixed membrane housing, and the third fixed membrane housing are respectively fixed on the support frame.
[0015] In some embodiments of the present utility model, there are multiple membrane filaments arranged in parallel.
[0016] In some embodiments of the present utility model, there are multiple MBR membrane mechanisms distributed in parallel.
[0017] In some embodiments of the present utility model, the middle parts of the first fixed membrane housing and the third fixed membrane housing are respectively communicated with the water production pipe, and the extending directions of the water production pipe are perpendicular to the extending directions of the first fixed membrane housing and the third fixed membrane housing respectively.
[0018] In some embodiments of the present utility model, the membrane filaments are arranged in a U shape.
[0019] Another technical solution provided by the present utility model: a sewage treatment device, the sewage treatment device includes the above-mentioned MBR membrane module.
[0020] Due to the application of the above technical solution, the present utility model has the following advantages compared with the prior art:
[0021] The present utility model innovatively provides an improved MBR membrane module, which innovatively limits the membrane filaments in three parts. Specifically, the head and tail parts of the membrane filaments are respectively fixed in the membrane shell and communicated with the water production pipe, so as to achieve high-efficiency water outlet at both ends. Moreover, being communicated with the same water production pipe can also reduce the number of components, reduce the water production connection area, streamline the mechanism, make the water production flow direction simple, and be easy for airtightness detection. At the same time, the middle part of the membrane filaments is limited by a cavity and is in a bent state, so that the membrane filaments can be "fixed" in another membrane shell without using glue, which simplifies the membrane filament fixing process and has good stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0023] Figure 1 It is a schematic structural diagram of the MBR membrane module according to an embodiment of the present utility model;
[0024] Figure 2 It is a schematic diagram of the MBR membrane module according to an embodiment of the present utility model with some components omitted;
[0025] Figure 3 is Figure 2 an enlarged schematic diagram of part A in
[0026] Figure 4 It is a schematic structural diagram of the second fixed membrane shell according to an embodiment of the present utility model;
[0027] Figure 5 It is a front view of the MBR membrane module according to an embodiment of the present utility model with some components omitted;
[0028] Figure 6 It is a schematic structural diagram of the first fixed membrane shell according to an embodiment of the present utility model;
[0029] In the attached drawing reference numerals: 1, water production pipe; 2, MBR membrane mechanism; 21, first fixed membrane shell; 211, installation groove; 22, second fixed membrane shell; 221, cavity; 222, arc plate; 2231, locking rod; 2232, locking hole; 224, strengthening rod; 23, third fixed membrane shell; 24, membrane filament; 3, support frame. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0030] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0031] In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.
[0032] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0033] The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.
[0034] As Figures 1 to 6 shown, this example provides an MBR membrane module, which includes a water production pipe 1 and an MBR membrane mechanism 2. The MBR membrane mechanism 2 includes a first fixed membrane shell 21, a second fixed membrane shell 22 with a cavity 221, a third fixed membrane shell 23, and membrane filaments 24. The membrane filaments 24 pass through the cavity 221. Among them, the membrane filaments 24 include a head end, a middle part, and a tail end. The head end is arranged in the first fixed membrane shell 21 and communicated with the water production pipe 1. The tail end is arranged in the third fixed membrane shell 23 and communicated with the water production pipe 1. At least part of the middle part is located in the cavity 221, and the part located in the cavity 221 is in a bent state.
[0035] In this example, the first fixed membrane shell 21 and the second fixed membrane shell 22 are respectively located on the opposite sides of the MBR membrane module. The third fixed membrane shell 23 and the first fixed membrane shell 21 are located on the same side of the MBR membrane module. Such a setting makes the cavity 221 a U-shaped cavity, and further makes the membrane filaments 24 as a whole in a U-shaped setting. Further, the third fixed membrane shell 23 and the first fixed membrane shell 21 are arranged in parallel, and both are located below the water production pipe 1.
[0036] In this example, the MBR membrane assembly also includes a support frame 3, and the water production pipe 1, the first fixed membrane shell 21, and the third fixed membrane shell 23 are respectively fixed on the support frame 3, the middle part of the first fixed membrane shell 21 and the middle part of the third fixed membrane shell 23 are respectively connected to the water production pipe 1, and the extension direction of the water production pipe 1 is perpendicular to the extension direction of the first fixed membrane shell 21 and the extension direction of the third fixed membrane shell 23.
[0037] The second fixed membrane shell 22 includes n arc plates 222 arranged in parallel, a reinforcing rod 224 with an arc-shaped cross section, and a locking assembly at least for fixing the aforementioned n arc plates 222 and the reinforcing rod 224 relative to each other. The reinforcing rod 224 is arranged in parallel with the arc plates 222 and is located on the inner side of the aforementioned n arc plates 222. A cavity 221 is formed between two adjacent arc plates 222 and between the reinforcing rod 224 and the adjacent arc plates 222. The central angle corresponding to the arc plate 222 is 120°-180°, specifically including but not limited to 120°, 125°, 130°, 135°, 140°, 145°, 150°, 155°, 160°, 165°, 170°, 175°, 180°, etc.
[0038] The locking assembly includes a locking rod 2231 and a locking hole 2232 formed on each arc plate 222 and the reinforcing rod 224. The locking rod 2231 is inserted into the locking hole 2232. Of course, it can also include a nut, etc. For example, a thread can be formed on the locking rod 2231, and the locking rod 2231 can be locked to the support frame 3 through the nut to fix the n arc plates 222 and the reinforcing rod 224. It can also be easily disassembled when needed.
[0039] In this example, the membrane filaments 24 have a plurality of parallel arranged fibers. After the plurality of membrane filaments 24 are arranged in parallel, they can actually be arranged in an array to form an m×n array, with a roughly U-shaped and wide gap in the middle to facilitate the free passage of sewage in the middle of the membrane filaments. The MBR membrane structure 2 has a plurality of parallel arranged fibers to form a roughly U-shaped and wide gap in the middle of the membrane filaments. Figure 1 The structure shown can be arranged at equal intervals, or of course, at unequal intervals. Their water-producing ends are all located at the upper part, and the lower part is fixed to the support frame 3 only through the second fixed membrane shell. Such a structure is simple and easy to install. At the same time, multiple membrane filaments arranged side by side along the length direction of the second fixed membrane shell can be located in the same cavity or in two cavities, or in more cavities.
[0040] See also Figures 1 to 2As shown, the support frame 3 in this example can be formed by connecting multiple rods, forming a roughly frame-shaped structure. A water production pipe 1 is arranged at the top, and an MBR membrane mechanism 2 is arranged in the middle. There are multiple MBR membrane mechanisms 2 distributed at equal intervals. There is a certain space between the lower part and the bottom of the support frame 3. In this way, the influence on the flow of sewage can be reduced or even avoided as much as possible when treating sewage, and the reserved space at the bottom can facilitate the smooth flow of some larger objects.
[0041] See Figure 3 As shown, it is Figure 2 an enlarged schematic view of part A in [reference], which exemplarily shows the setting relationship between the second fixed membrane shell 22, the membrane filaments 24, and the support frame 3. The membrane filaments 24 pass through the cavity from one end and extend out from the other end, and then all extend upward. The part passing through the cavity 221 adapts to the shape of the cavity 221 (for example, it is arc-shaped) and changes its state accordingly. Figure 3 in a roughly bent arc state.
[0042] See Figure 4 As shown, the second fixed membrane shell 22 can actually be formed by arranging multiple independent components at equal intervals. Cavities 221 are formed between each two. The middle reinforcing rod 224 can play roles such as supporting, strengthening the strength, and forming deep enough locking holes 2232. Moreover, it is more conducive to setting locking rods compared to a plate. There are multiple formed cavities 221, which are arranged in sequence from the inside to the outside, and the volume of the cavities 221 increases in sequence from the inside to the outside. Similarly, the part of the membrane filaments located in the cavities 221 also becomes longer in sequence from the inside to the outside.
[0043] See Figure 5 As shown, it is a front view of the MBR membrane module. It can be clearly seen that the membrane filaments 24 are arranged in a U-shaped bend. Most of the structure of the membrane filaments 24 extends in the up and down direction. The water production pipe 1, the first fixed membrane shell 21 (or the third fixed membrane shell 23), and the second fixed membrane shell 22 are distributed in sequence from top to bottom. All the first fixed membrane shells 21 (or the third fixed membrane shell 23) are communicated with the same water production pipe 1. In this way, it is more conducive to controlling the outflow of the produced water, avoiding defects such as too many water production pipes and messy settings caused by the production of water at both the upper and lower ends in the prior art, and at the same time ensuring the efficient production of water at both ends.
[0044] See Figure 6 As shown, it is a schematic view of the first fixed membrane shell 21. There are multiple installation grooves 211 arranged in parallel inside it, which is convenient for the neat arrangement and distribution of the membrane filaments, and avoids the occurrence of unwanted phenomena such as entanglement between the membrane filaments. The structure of the third fixed membrane shell is the same as that of the first fixed membrane shell, and will not be specifically described here.
[0045] In other embodiments, a sewage treatment device is further provided. The sewage treatment device includes the above-mentioned MBR membrane module, which may include one or multiple modules. The multiple modules may be distributed in an array, or may be detachably connected together by providing mounting holes on a support frame to improve the treatment efficiency.
[0046] In summary, the present utility model innovatively provides an improved MBR membrane module, which innovatively limits the membrane filaments in three parts. Specifically, the head and tail parts of the membrane filaments are respectively fixed in the membrane housing and communicated with the water production pipe, enabling high-efficiency water outlet at both ends. Moreover, being communicated with the same water production pipe can reduce the number of components, reduce the water production connection area, streamline the mechanism, simplify the water production flow path, and facilitate airtightness detection. At the same time, the middle part of the membrane filaments is limited by a cavity and bent, so that the membrane filaments can be "fixed" in another membrane housing without using glue, simplifying the membrane filament fixing process and having good stability.
[0047] The above embodiments are only for illustrating the technical concept and features of the present utility model, and their purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly. It should not be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.
Claims
1. An MBR membrane module, characterized in that, The MBR membrane module includes a water production pipe and an MBR membrane mechanism. The MBR membrane mechanism includes a first fixed membrane shell, a second fixed membrane shell with a cavity, a third fixed membrane shell, and membrane filaments. The membrane filaments pass through the cavity. Among them, the membrane filaments include a head end, a middle part, and a tail end. The head end is arranged in the first fixed membrane shell and communicates with the water production pipe. The tail end is arranged in the third fixed membrane shell and communicates with the water production pipe. At least a part of the middle part is located in the cavity, and this part is in a bent state.
2. The MBR membrane module according to claim 1, wherein The cavity is a U-shaped cavity.
3. The MBR membrane module according to claim 1, wherein The first fixed membrane shell and the second fixed membrane shell are respectively located on opposite sides of the MBR membrane module. The third fixed membrane shell and the first fixed membrane shell are located on the same side of the MBR membrane module.
4. The MBR membrane module according to claim 1, characterized in that, The third fixed membrane shell is arranged parallel to the first fixed membrane shell, and both are located below the water production pipe.
5. The MBR membrane module according to claim 1, characterized in that, The second fixed membrane shell includes n arc-shaped plates arranged in parallel and at least a locking component for fixing the n arc-shaped plates. A cavity is formed between two adjacent arc-shaped plates.
6. The MBR membrane module according to claim 5, wherein The central angle corresponding to the arc-shaped plate is 120°-180°; and / or, the locking component includes a locking rod and locking holes formed on each arc-shaped plate. The locking rod is inserted into the locking holes.
7. The MBR membrane module according to claim 5, characterized in that, The second fixed membrane shell further includes a reinforcing rod. The cross-section of the reinforcing rod is arc-shaped. The reinforcing rod is arranged in parallel with the arc-shaped plates and is located inside the n arc-shaped plates. The reinforcing rod is relatively fixed to the n arc-shaped plates through the locking component; and / or, the MBR membrane module further includes a support frame. The locking component can fix the n arc-shaped plates on the support frame. The water production pipe, the first fixed membrane shell, and the third fixed membrane shell are respectively fixed on the support frame.
8. The MBR membrane module according to claim 1, wherein There are multiple membrane filaments arranged in parallel; and / or, there are multiple MBR membrane mechanisms distributed in parallel.
9. The MBR membrane module according to claim 1, characterized in that, The middle parts of the first fixed membrane shell and the third fixed membrane shell are respectively communicated with the water production pipe. The extending directions of the water production pipe are respectively perpendicular to the extending directions of the first fixed membrane shell and the third fixed membrane shell. and / or, the membrane filaments are arranged in a U shape.
10. A sewage treatment device, characterized in that, The sewage treatment device includes the MBR membrane module according to any one of claims 1-9.