Immersed hollow fiber ultrafiltration membrane assembly

Abstract

The utility model discloses an immersed hollow fiber ultrafiltration membrane component which comprises an upper seal head, a lower seal head and a stand column for connecting the upper seal head and the lower seal head, a water outlet is formed in the top of the upper seal head, a circle of boss is arranged at the bottom of the upper seal head, the tops of bundled membrane filaments are fixed on the boss, and a platform for fixing the bottoms of the membrane filaments is arranged on the lower seal head. A circle of lower side wall is formed above the periphery of the platform, a plurality of aeration grooves are formed in the platform, the bottoms of the membrane filaments are fixed on the platform by avoiding the aeration grooves, the platform is arranged at the bottom, the membrane filaments at the bottom can be directly inserted into the platform and then are directly fixed through glue injection, the fixing steps are simple, and the membrane filament fixing device is suitable for popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of filtration, and in particular relates to an immersed hollow fiber ultrafiltration membrane component. Background Art

[0002] Submerged hollow fiber ultrafiltration membrane modules are widely used in water treatment systems, including municipal sewage treatment and drinking water purification. Traditional submerged hollow fiber ultrafiltration membrane modules usually use membrane fibers fixed between upper and lower heads, and use aeration devices to generate bubbles to flush the membrane fiber surface to prevent the accumulation of dirt on the membrane fiber surface. However, these traditional designs face some significant problems in practical applications.

[0003] First, the method of fixing the membrane wire is complicated and time-consuming. In the traditional design, the upper and lower ends of the membrane wire need to be fixed with glue first, and then the excess glue is cut off to fix the membrane wire. This not only increases the manufacturing cost, but also increases the difficulty of installation and maintenance.

[0004] Secondly, traditional aeration devices usually use aeration hole design, and small bubbles generated by the aeration holes are used to flush the membrane surface. However, the flushing force of small bubbles is limited and cannot effectively remove pollutants attached to the membrane surface, which makes it easy for dirt to form on the membrane surface, affecting the filtration effect and service life. Especially under high-load operating conditions, the membrane surface is more easily contaminated, which requires frequent cleaning and replacement, increasing operating costs and maintenance workload.

[0005] In addition, the bubble distribution in the traditional aeration hole design is uneven, resulting in insufficient flushing force on some membrane fibers, especially the upper part of the membrane fibers, which is more prone to dirt accumulation, further reducing the overall filtration performance of the membrane assembly. Utility Model Content

[0006] In order to solve the above problems, the utility model provides an immersed hollow fiber ultrafiltration membrane component.

[0007] The technical solution provided by the utility model is as follows:

[0008] A submerged hollow fiber ultrafiltration membrane assembly comprises an upper end cap, a lower end cap and a column connecting the upper end cap and the lower end cap;

[0009] A water outlet is provided at the top of the upper head, and a circle of bosses is provided at the bottom of the upper head, and the tops of the bundled membrane filaments are fixed on the bosses;

[0010] The lower head is provided with a platform for fixing the bottom of the membrane wire, a circle of lower side walls is formed upward around the platform, a plurality of aeration grooves are opened on the platform, and the bottom of the membrane wire is fixed on the platform avoiding the aeration grooves.

[0011] In some embodiments, the aeration tanks are in the shape of long strips and are evenly distributed on the platform.

[0012] In some embodiments, the aeration tanks are annular and spread out equidistantly from the center of the platform to the edge of the platform.

[0013] In some embodiments, the height of the aeration tank is the same as the height of the lower side wall.

[0014] In some embodiments, a circle of upper side walls is formed downward around the bottom of the upper head, and a plurality of protrusions are provided on the inner wall of the upper side wall.

[0015] In some embodiments, the upper head and the lower head are regular hexagons.

[0016] In some embodiments, the upper head and the lower head are provided with symmetrical sockets, and the columns are inserted into the sockets.

[0017] In some embodiments, a plug plate is provided at the bottom of the lower head.

[0018] In summary, the beneficial effects of the utility model are as follows:

[0019] (1) The utility model provides a platform at the bottom, and the membrane wire at the bottom can be directly plugged into the platform and then directly fixed by injecting glue. The fixing steps are simple and suitable for promotion.

[0020] (2) Compared with the aeration holes, the aeration tank of the utility model can make the floating bubbles larger and enhance the bursting force of the bubbles, so as to achieve a better flushing effect on the membrane fiber surface.

[0021] (3) The utility model also provides an annular aeration trough, in which the bottom of the membrane wire is also fixed in a ring shape, and the aeration space inside the membrane wire forms a closed structure. The blasting gas cannot be quickly discharged directly from the gaps between the rows of membrane wires, thereby improving the flushing effect on the membrane wire surface, especially the upper membrane wire surface, and further improving the aeration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the upper head structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the lower head structure in Example 1;

[0025] Figure 4 This is a schematic diagram of the lower head structure in Example 2.

[0026] The reference numerals are as follows:

[0027] 1. Upper head; 2. Lower head; 3. Column; 4. Water outlet; 5. Boss; 6. Platform; 7. Lower side wall; 8. Aeration tank; 9. Upper side wall; 10. Boss; 11. Socket; 12. Plug plate. DETAILED DESCRIPTION

[0028] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0029] Example 1

[0030] like Figure 1-4 As shown, this embodiment provides an immersed hollow fiber ultrafiltration membrane assembly, which mainly includes an upper head 1, a lower head 2 and a column 3. The upper head 1 and the lower head 2 are provided with symmetrical sockets 11, and the column 3 is inserted into the socket 11. The column 3 is used to connect the upper head 1 and the lower head 2.

[0031] A water outlet 4 is provided at the top of the upper head 1, a circle of bosses 5 is provided at the bottom of the upper head 1, a platform 6 is provided on the lower head 2, a circle of lower side walls 7 are formed upward around the platform 6, a number of aeration grooves 8 are opened on the platform 6, a circle of upper side walls 9 are formed downward around the bottom of the upper head 1, and the height of the aeration groove 8 is the same as that of the lower side wall 7, so that the insertion of the membrane wire has a certain depth, thereby improving the stability of the membrane wire fixation.

[0032] When in use, first seal one end of the bundled membrane filaments with glue, cut off the excess glue on the top after solidification to expose the end of the membrane filament, then apply glue around the top membrane filament, fix the membrane filament on the inner wall of the upper side wall 9, and complete the assembly of the upper head 1 under the limit of the boss 5; the bottom of the membrane filament is inserted on the platform 6 avoiding the aeration tank 8, and after the membrane filament is inserted, glue is injected on the platform 6 to fix the lower end of the membrane filament to complete the assembly of the submerged hollow fiber ultrafiltration membrane assembly.

[0033] In this embodiment, the upper head 1 and the lower head 2 are regular hexagons, and are provided with symmetrical sockets 11, and the columns 3 are inserted into the sockets 11. The bottom of the lower head 2 is provided with an insert plate 12, which can facilitate the insertion of the membrane assembly onto the aeration base.

[0034] The upper end cap 1 and the lower end cap 2 are set to be regular hexagons. When the submerged hollow fiber ultrafiltration membrane components are placed in groups, the regular hexagons fit together, which can make the membrane components more compact. The column 3 and the upper end cap 1 and the lower end cap 2 are detachable, which is convenient for assembly and later replacement of membrane fibers.

[0035] Please refer to Figure 3The aeration grooves 8 in this embodiment are long and strip-shaped and are evenly distributed on the platform 6. Compared with the aeration holes, the long and strip-shaped aeration grooves 8 can make the floating bubbles larger and enhance the blasting force of the bubbles, so as to achieve a better flushing effect on the membrane fiber surface.

[0036] Example 2

[0037] This embodiment is formed on the basis of embodiment 1, and the aeration efficiency is improved by changing the structure of the aeration tank 8. Specifically:

[0038] Please refer to Figure 4 The aeration tank 8 is annular and spreads equidistantly from the center of the platform 6 to the edge of the platform 6 .

[0039] Since the aeration groove 8 is arranged in a ring shape and the bottom of the membrane wire is also fixed in a ring shape, the aeration space inside the membrane wire forms a closed structure. The blasting gas cannot be quickly discharged directly from the gaps between the rows of membrane wires, thereby improving the flushing effect on the membrane wire surface, especially the upper membrane wire surface, and further improving the aeration efficiency.

[0040] It should be noted that the implementation methods not shown or described in the drawings or the text of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each element and method are not limited to the various specific structures, shapes or methods mentioned in the embodiments.

[0041] It should also be noted that this document may provide demonstrations of parameters containing specific values, but these parameters do not need to be exactly equal to the corresponding values, but can be approximated to the corresponding values ​​within an acceptable error tolerance or design constraint. Directional terms mentioned in the embodiments, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", etc., are only referenced to the directions of the drawings and are not intended to limit the scope of protection of this application.

[0042] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A submerged hollow fiber ultrafiltration membrane assembly, characterized in that: It comprises an upper head (1), a lower head (2), and a column (3) connecting the upper head (1) and the lower head (2); The top of the upper head (1) is provided with a water outlet (4), and the bottom of the upper head (1) is provided with a circle of bosses (5), and the tops of the bundled membrane filaments are fixed on the bosses (5); The lower head (2) is provided with a platform (6) for fixing the bottom of the membrane filaments. The platform (6) is surrounded by a circle of lower side walls (7) extending upward. The platform (6) is provided with a plurality of aeration grooves (8). The bottom of the membrane filaments is fixed on the platform (6) avoiding the aeration grooves (8).

2. The submerged hollow fiber ultrafiltration membrane assembly according to claim 1, characterized in that: The aeration tanks (8) are in the shape of long strips and are evenly distributed on the platform (6).

3. The submerged hollow fiber ultrafiltration membrane assembly according to claim 1, characterized in that: The aeration tank (8) is annular and spreads equidistantly from the center of the platform (6) to the edge of the platform (6).

4. The submerged hollow fiber ultrafiltration membrane assembly according to claim 2 or 3, characterized in that: The height of the aeration tank (8) is the same as the height of the lower side wall (7).

5. The submerged hollow fiber ultrafiltration membrane assembly according to claim 1, characterized in that: An upper side wall (9) is formed around the bottom of the upper head (1) and extends downwards, and a plurality of protrusions (10) are provided on the inner wall of the upper side wall (9).

6. The submerged hollow fiber ultrafiltration membrane assembly according to claim 1, characterized in that: The upper head (1) and the lower head (2) are regular hexagons.

7. The submerged hollow fiber ultrafiltration membrane assembly according to claim 1, characterized in that: Symmetrical insertion holes (11) are provided on the upper sealing head (1) and the lower sealing head (2), and the upright posts (3) are inserted into the insertion holes (11).

8. The submerged hollow fiber ultrafiltration membrane assembly according to claim 7, characterized in that: A plug plate (12) is provided at the bottom of the lower sealing head (2).

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