An ordered wire-wound submerged MBR curtain membrane module

Abstract

The utility model discloses an orderlyization row silk immersed MBR curtain formula membrane module, including a plurality of hollow fiber membrane, two water outlet end components and two water outlet end pouring components, the one end of a plurality of hollow fiber membrane is connected with one water outlet end pouring component through the glue solidification and becomes one colloid, and the other end is connected with another water outlet end pouring component through the glue solidification and becomes another colloid, two water outlet end pouring components all include a first water outlet end pouring monomer and a second water outlet end pouring monomer, and the first water outlet end pouring monomer and the second water outlet end pouring monomer are connected through the mortise and tenon structure and form the forming cavity for the molding of above-mentioned colloid. The utility model improves membrane silk arrangement uniformity, reduces the silt, strengthens the pouring leakproofness, prevents the glue leakage, reduces the production cost, and simplifies the mould design.

Description

Technical Field

[0001] This utility model specifically relates to an ordered fiber-arranged immersion MBR curtain membrane module. Background Technology

[0002] Submerged membrane bioreactors (MBRs), as a highly efficient wastewater treatment technology, are widely used in urban wastewater treatment and reuse, high-concentration organic wastewater treatment, recalcitrant industrial wastewater treatment, and wastewater treatment in public health sensitive areas. Their core functional components include the bioreactor and the membrane module, with the membrane module being the key factor determining the performance of the MBR system. Currently, commonly used membrane modules mainly include flat-sheet membrane modules and hollow fiber membrane modules. Compared to flat-sheet membrane modules, hollow fiber membrane modules are more widely used in wastewater treatment due to their advantages such as high packing density, low investment cost, and flexible applicable treatment scale, especially in small and medium-sized wastewater treatment projects where they demonstrate significant economic and practical advantages.

[0003] Among hollow fiber membrane modules, curtain-type membrane modules have become the mainstream form in the market due to their simple casting process, high unit filling area, low production cost, and high flexibility in membrane area per individual membrane module. Existing curtain-type membrane modules typically employ a single-curtain membrane structure with double-end casting and double-end water outlet. This structure forms a curtain arrangement by fixing hollow fiber membrane filaments to the casting components at both ends, and collects permeate through water collection chambers at both ends. However, single-curtain membrane modules have some significant drawbacks in actual operation. First, their water distribution uniformity is poor, leading to differences in membrane flux in different parts of the membrane module. Localized high-flux areas are prone to accelerated membrane fouling, thus affecting the overall water production efficiency of the system. When local fouling worsens to the point of being unable to produce water, the high-flux area will gradually shift to other parts, potentially leading to a decrease in the operating efficiency of the entire MBR system or even failure. Second, because hollow fiber membrane filaments are slender and flexible, the root filaments are prone to cross-misalignment when numerous filaments are cast into a single-curtain membrane module. This disordered arrangement not only increases the risk of mud accumulation and hair entanglement at the roots of the membrane fibers, but may also further exacerbate the problem of uneven water distribution and reduce the service life of the membrane module.

[0004] To improve water distribution uniformity and reduce sludge accumulation on membrane fibers, a plate-shaped fabric curtain MBR module has been proposed in the prior art. This module combines several hollow fiber membrane fibers side-by-side to form hollow fiber membrane sheets, ensuring the fibers are arranged evenly at both ends with their vertical projections converging at a common point. This effectively avoids fiber crossing and improves the uniformity of fiber arrangement. Furthermore, gaps are reserved between the hollow fiber membrane sheets in both horizontal and vertical directions, increasing the flow channels for the mud-water mixture and further reducing the possibility of sludge accumulation on the membrane fibers. However, the production process of this plate-shaped fabric curtain MBR module places higher demands on the outlet casting components. Existing outlet casting components typically employ an integral design, resulting in complex structures, high mold costs, and a tendency for glue leakage during casting, affecting sealing performance and production efficiency. In addition, the assembly operation of existing outlet casting components is cumbersome, making it difficult to meet the demands of efficient and flexible production. Utility Model Content

[0005] The purpose of this invention is to provide an ordered fiber-arranged immersion MBR curtain membrane module.

[0006] The technical solution of this utility model is as follows:

[0007] An ordered fiber-arranged submerged MBR curtain membrane module includes several hollow fiber membrane sheets, two outlet end components, and two outlet end casting components.

[0008] One end of several hollow fiber membranes is connected to a water outlet casting component by a colloid formed by glue solidification at one end, and the other end is connected to another water outlet casting component by another colloid formed by glue solidification at the other end.

[0009] Each of the two water outlet components has an opening and a water production port. The two water outlet casting components are respectively positioned in the openings of the two water outlet components. In each water outlet component, the end face of a colloid surrounds the top wall and side wall of the upper water outlet component to form a water collection cavity that connects to the water production port. The two ends of the hollow fiber membrane filaments in a plurality of hollow fiber membrane sheets are respectively connected to the above-mentioned water collection cavities in the two water outlet components.

[0010] Both water outlet casting components include a first water outlet casting unit and a second water outlet casting unit. The first water outlet casting unit and the second water outlet casting unit are connected by a mortise and tenon structure to form a molding cavity for the above-mentioned colloid molding.

[0011] In a preferred embodiment of this utility model, the first water outlet casting unit has a first plate-shaped body, one end of which has a first tenon and the other end has a first mortise; the second water outlet casting unit has a second plate-shaped body, one end of which has a second tenon and the other end has a second mortise; the first tenon and the second mortise are tightly fitted together, and the second tenon and the first mortise are tightly fitted together, so as to form two connecting parts at both ends of the water outlet casting component, which then surround the first plate-shaped body and the second plate-shaped body to form a molding cavity for the colloid molding.

[0012] More preferably, the first plate-shaped body and / or the second plate-shaped body are provided with at least one stripe structure to fix the colloid, and the at least one stripe structure is raised or grooved.

[0013] More preferably, the first plate-shaped body is provided with at least one first support protrusion and / or at least one first support groove, and the second plate-shaped body is provided with at least one second support protrusion and / or at least one second support groove. The at least one first support protrusion is adapted to be connected with the at least one second support groove, and the at least one second support protrusion is adapted to be connected with the at least one first support groove, so as to form at least one support member in the casting member at the water outlet end.

[0014] More preferably, the width of the at least one support member is smaller than the width of the two connecting members, such that the at least one support member is immersed in the colloid.

[0015] In a preferred embodiment of this utility model, the hollow fiber membrane is composed of a plurality of hollow fiber membrane filaments arranged in parallel at equal intervals, and its thickness is equal to the diameter of a single hollow fiber membrane filament.

[0016] In a preferred embodiment of the present invention, a limiting ring is provided on the side wall of the water outlet component to limit the water outlet casting component to be positioned within the opening.

[0017] In a preferred embodiment of this utility model, the first water outlet casting unit and the second water outlet casting unit have completely identical structures and specifications. The first water outlet casting unit and the second water outlet casting unit, which is rotated 180 degrees relative to the first water outlet casting unit, are connected to form a molding cavity for the above-mentioned colloid molding.

[0018] The beneficial effects of this utility model are:

[0019] 1. The water outlet casting component of this utility model adopts a split design, consisting of a first water outlet casting unit and a second water outlet casting unit joined together by tenons and mortises. The tight fit between the tenons and mortises ensures good sealing during the casting process, effectively preventing glue leakage and improving production quality and efficiency.

[0020] 2. This invention arranges several hollow fiber membrane filaments into a hollow fiber membrane sheet in an orderly manner, with the filaments evenly spaced at both ends and their projections converging at the same point, effectively preventing filament crossing. This structure significantly improves the uniformity of filament arrangement, optimizes water distribution uniformity, and reduces the probability of localized high membrane flux, thereby slowing down membrane fouling and extending the service life of the membrane module. Furthermore, the horizontal and vertical gaps between the hollow fiber membrane sheets increase the flow channels for the mud-water mixture, further reducing the risk of mud accumulation and hair entanglement at the filament roots.

[0021] 3. The water outlet casting component of this utility model is divided into a first water outlet casting unit and a second water outlet casting unit. Production can be completed using only a simple mold, replacing the complex molds required in traditional designs. This ingenious design significantly reduces mold development and manufacturing costs, simplifies the production process, and is particularly suitable for large-scale production. Furthermore, the first and second water outlet casting units are easy to assemble and maintain, improving operational flexibility and convenience. Attached Figure Description

[0022] Figure 1 This is a front view of the present invention.

[0023] Figure 2 This is a side view of the present invention.

[0024] Figure 3 This is a schematic diagram of the cross-section of the present invention.

[0025] Figure 4 This is a schematic diagram of the hollow fiber membrane of this utility model.

[0026] Figure 5 This is a three-dimensional exploded structural diagram of the water outlet casting component of this utility model.

[0027] Figure 6 This is a structural schematic diagram of the combined state of the water outlet casting component of this utility model.

[0028] Figure 7 This utility model provides a structural diagram of a hollow fiber membrane assembled into a casting component at the water outlet. Detailed Implementation

[0029] The technical solution of this utility model will be further explained and described below with reference to specific embodiments and accompanying drawings.

[0030] like Figures 1 to 3 As shown, an ordered fiber-arranged submerged MBR curtain membrane module includes several hollow fiber membrane sheets 1, two outlet end components 2, and two outlet end casting components 3 (preferably made of ABS, PVC, or UPVC).

[0031] One end of several hollow fiber membranes 1 is connected to a water outlet casting component 3 by a colloid 11 formed by glue solidification, and the other end is connected to another water outlet casting component 3 by another colloid 11 formed by glue solidification.

[0032] Each of the two water outlet components 2 has an opening 20 and a water outlet 21. The two water outlet casting components 3 are respectively positioned within the opening 20 of the two water outlet components 2. The water outlet 21 is provided with a water outlet pipe 201 (size Ф10~40mm). In each water outlet component 2, the end face of a colloid 11 surrounds the top wall and side wall of the upper water outlet component 2 to form a water collection cavity 22 that communicates with the water outlet 21. The two ends of the hollow fiber membrane filaments 10 in the plurality of hollow fiber membrane sheets 1 are respectively connected to the above-mentioned water collection cavity 22 in the two water outlet components 2. Preferably, a limiting ring (not shown in the figure) is provided inwardly on the side wall of the water outlet component 2 so that the water outlet casting component 3 is positioned within the opening 20.

[0033] like Figure 5 and Figure 6 As shown, each of the two water outlet casting components 3 includes a first water outlet casting unit 31 and a second water outlet casting unit 32. The first water outlet casting unit 31 and the second water outlet casting unit 32 are connected by a tenon and mortise structure to form a molding cavity 35 for molding the above-mentioned colloid 11.

[0034] Specifically, the first outlet casting unit 31 has a first plate-shaped body 310, one end of which has a first tenon 311 and the other end has a first mortise 312; the second outlet casting unit 32 has a second plate-shaped body 320, one end of which has a second tenon 321 and the other end has a second mortise 322; the first tenon 311 and the second mortise 322 are tightly engaged and fitted together, so as to form two connecting parts 33 at both ends of the outlet casting component 3, which in turn surround the first plate-shaped body 310 and the second plate-shaped body 320 to form a molding cavity 35 for molding the colloid 11, and ensure the sealing of the colloid 11 during casting.

[0035] The first plate-shaped body 310 is provided with a first support protrusion 3101 and a first support groove 3102, and the second plate-shaped body 320 is provided with a second support protrusion 3201 and a second support groove 3202. The first support protrusion 3101 and the second support groove 3202 are adapted to be connected, and the second support protrusion 3201 and the first support groove 3102 are adapted to be connected, so as to form two support members 34 in the casting member 3 at the water outlet end. The width of the two support members 34 is smaller than the width of the two connecting members 33, so that the two support members 34 are immersed and embedded in the colloid 11.

[0036] like Figure 5 and Figure 7 As shown, the first plate-shaped body 310 is provided with a plurality of stripe structures 313 to fix the colloid 11, and the plurality of stripe structures 313 are protruding or grooved; the second plate-shaped body 320 is provided with a plurality of stripe structures 323 to fix the colloid 11, and the plurality of stripe structures 323 are protruding or grooved.

[0037] Preferably, the first water outlet casting unit 31 and the second water outlet casting unit 32 have completely identical structures and specifications. The first water outlet casting unit 31 and the second water outlet casting unit 32, which is rotated 180 degrees relative to the first water outlet casting unit 31, are connected to form a molding cavity 35 for molding the aforementioned colloid 11. Figure 4 As shown, the hollow fiber membrane 1 is composed of a plurality of hollow fiber membrane filaments 10 arranged in parallel at equal intervals, and its thickness is equal to the diameter of a single hollow fiber membrane filament 10. The upper and lower ends of the plurality of hollow fiber membrane filaments 10 in each hollow fiber membrane 1 are connected by connectors (adhesive bonding, wire braiding, or ultrasonic welding); preferably, each hollow fiber membrane 1 has 3-300 hollow fiber membrane filaments 10 with a diameter of 1-3 mm, and the spacing between adjacent hollow fiber membrane filaments 10 is 0.1-5 mm. The length of the hollow fiber membrane filaments 10 between the two colloids 11 is 500 mm-2500 mm.

[0038] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.

Claims

1. An ordered fiber-arranged submerged MBR curtain membrane module, characterized in that: It includes several hollow fiber membranes, two water outlet end components, and two water outlet end cast-in-place components. One end of several hollow fiber membranes is connected to a water outlet casting component by a colloid formed by glue solidification at one end, and the other end is connected to another water outlet casting component by another colloid formed by glue solidification at the other end. Each of the two water outlet components has an opening and a water production port. The two water outlet casting components are respectively positioned in the openings of the two water outlet components. In each water outlet component, the end face of a colloid surrounds the top wall and side wall of the upper water outlet component to form a water collection cavity that connects to the water production port. The two ends of the hollow fiber membrane filaments in a plurality of hollow fiber membrane sheets are respectively connected to the above-mentioned water collection cavities in the two water outlet components. Both water outlet casting components include a first water outlet casting unit and a second water outlet casting unit. The first water outlet casting unit and the second water outlet casting unit are connected by a mortise and tenon structure to form a molding cavity for the above-mentioned colloid molding.

2. The ordered fiber-arranged submerged MBR curtain membrane module as described in claim 1, characterized in that: The first water outlet casting unit has a first plate-shaped body, one end of which has a first tenon and the other end has a first mortise; the second water outlet casting unit has a second plate-shaped body, one end of which has a second tenon and the other end has a second mortise; the first tenon and the second mortise are tightly engaged and fitted together, and the second tenon and the first mortise are tightly engaged and fitted together, so as to form two connecting parts at both ends of the water outlet casting component, which in turn surround the first plate-shaped body and the second plate-shaped body to form a molding cavity for the molding of the colloid.

3. The ordered fiber-arranged submerged MBR curtain membrane module as described in claim 2, characterized in that: The first plate-shaped body and / or the second plate-shaped body are provided with at least one stripe structure to fix the colloid, and the at least one stripe structure is in the form of a protrusion or a groove.

4. The ordered fiber-arranged submerged MBR curtain membrane module as described in claim 2, characterized in that: The first plate-shaped body is provided with at least one first support protrusion and / or at least one first support groove, and the second plate-shaped body is provided with at least one second support protrusion and / or at least one second support groove. The at least one first support protrusion is adapted to be connected with the at least one second support groove, and the at least one second support protrusion is adapted to be connected with the at least one first support groove, so as to form at least one support member in the casting component at the water outlet end.

5. The ordered fiber-arranged submerged MBR curtain membrane module as described in claim 4, characterized in that: The width of the at least one support member is smaller than the width of the two connecting members, such that the at least one support member is immersed in the colloid.

6. The ordered fiber-arranged submerged MBR curtain membrane module as described in claim 1, characterized in that: The hollow fiber membrane is composed of several hollow fiber membrane filaments arranged in parallel at equal intervals, and its thickness is equal to the diameter of a single hollow fiber membrane filament.

7. The ordered fiber-arranged submerged MBR curtain membrane module as described in claim 1, characterized in that: A limiting ring is provided on the side wall of the water outlet component to limit the water outlet casting component to be positioned within the opening.

8. The ordered fiber-arranged submerged MBR curtain membrane module as described in claim 1, characterized in that: The first water outlet casting unit and the second water outlet casting unit have the same structure and specifications. The first water outlet casting unit and the second water outlet casting unit, which is rotated 180 degrees relative to the first water outlet casting unit, are connected to form a molding cavity for the above-mentioned colloid molding.

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