Adjustable partition water distribution rack for hollow fiber column membrane modules

Abstract

The present invention relates to an adjustable partitioned water distribution partition frame for a hollow fiber column membrane module, comprising an external fixed frame and an internal movable frame. The external fixed frame is provided with multiple partitions for loading membrane filaments, and the internal movable frame is configured to be rotatably mounted on the external fixed frame to separate each partition, thereby enabling each partition to switch between a minimum membrane filament loading state and a maximum membrane filament loading state. The present invention uses an external partitioning member to perform a primary partitioning operation, and then rotates the internal partitioning member on the external fixed frame to perform a secondary partitioning operation on the primary partition, thereby adjusting the membrane filament loading area of ​​the primary partition to match the required membrane filament loading state.

Description

Technical Field

[0001] The invention relates to the technical field of water distribution and partition frames used in hollow fiber column type membrane component products, in particular to an adjustable partition water distribution and partition frame for hollow fiber column type membrane components. Background Art

[0002] In the field of external pressure hollow fiber column membrane modules, the membrane filaments are fixed on the water distribution partition frames at both ends of the hollow fiber column membrane module, and then the resin is used to seal the ends of the hollow fiber column membrane module to form resin end faces, so that raw water such as industrial wastewater or sewage enters the inner cavity of its membrane shell module through one end of the hollow fiber column membrane module and is filtered by the membrane filaments. The concentrated water left after filtration is discharged from the concentrated water outlet of the hollow fiber column membrane module, and the permeate after filtration through the membrane filaments, that is, the produced water, flows out from the water outlet.

[0003] The function of the water distribution partition is to increase the strength of the resin and increase the strength of the resin end face under the impact of the water flow. It also plays a certain role in water distribution. In the prior art, the water distribution partition usually divides its peripheral area into multiple areas, namely multiple partitions, and fills each area with membrane filaments. Since the area of ​​each area is fixed, the amount of membrane filaments filled in each area is also fixed in the case of centrifugal casting. However, in reality, due to different water quality and different market demands for water production, when the membrane shell assembly remains unchanged, it is necessary to change the internal filament structure and water distribution channel of the hollow fiber column membrane assembly to meet market demand. However, the existing water distribution partition frame can neither effectively open the water distribution channels between the membrane filaments to make the water acting on the membrane filaments more uniform, nor can it arbitrarily adjust the filling amount of the membrane filaments. That is, when the structure remains unchanged, when the filling amount of membrane filaments in each area is reduced, the membrane filaments will not be able to be fixed during the centrifugal casting process because the proportion of the membrane filaments in the barrel of the hollow fiber column membrane assembly is too small. During the centrifugal casting process, the membrane filaments will be thrown around by the centrifugal force, and thus cannot be evenly distributed in the barrel. The membrane filaments may even be directly thrown in, that is, separated from the water distribution partition frame and enter the middle part of the barrel, thereby affecting the yield of centrifugal casting or causing the casting to be unable to be completed. Summary of the Invention

[0004] In order to overcome the above-mentioned defects, the present invention provides an adjustable partitioned water distribution partition frame for a hollow fiber column membrane module with an adjustable membrane filament loading amount to meet different water production requirements.

[0005] To this end, the present invention provides an adjustable partitioned water distribution partition frame for a hollow fiber column membrane assembly, which includes an external fixed frame and an internal movable frame, wherein the external fixed frame is provided with multiple partitions for loading membrane filaments, and the internal movable frame is configured to be rotatably mounted on the external fixed frame to separate each partition, so that each partition can be converted between a minimum membrane filament loading state and a maximum membrane filament loading state.

[0006] In the present invention, partitions are formed by external partitioning components, and then the partitions are divided / partitioned for a second time by moving the internal partitioning components on the external fixing frame. This can, on the one hand, adjust the membrane fiber filling area of ​​the partition to match the required membrane fiber filling amount, and on the other hand, further enhance the resin casting strength of the hollow fiber column membrane assembly.

[0007] Furthermore, the external fixed frame includes a fixed tube body and a plurality of groups of external partitioning members that divide the peripheral area of ​​the fixed tube body into the aforementioned plurality of partitions, and the internal movable frame includes a movable tube body coaxially located within the fixed tube body and a plurality of groups of internal partitioning members arranged on the periphery of the movable tube body corresponding to the plurality of groups of external partitioning members, wherein the internal movable frame is configured to be coaxially rotatable relative to the external fixed frame so that each group of internal partitioning members can be rotatably mounted on the fixed tube body within a partition between two adjacent groups of external partitioning members.

[0008] Through the above-mentioned structural setting, before centrifugal casting (i.e. end sealing) is performed on both ends of the hollow fiber column membrane assembly, if it is necessary to adjust the membrane fiber loading amount of each partition, it is only necessary to rotate the internal movable frame to adjust the position of the internal partition components in each partition to achieve the adjustment of the membrane fiber loading area of ​​each partition, thereby meeting the membrane fiber loading amount requirements.

[0009] Furthermore, multiple groups of external partitions extend radially outward from the fixed tube body and are evenly distributed along the circumference of the fixed tube body, and multiple groups of internal partitions extend radially outward from the movable tube body and are evenly distributed along the circumference of the movable tube body, wherein multiple groups of total notches are provided on the fixed tube body, and each group of total notches is configured so that a corresponding group of internal partitions can radially penetrate it and be rotatably mounted on the fixed tube body.

[0010] Through the above-mentioned structural arrangement, the multiple partitions formed by multiple groups of external partitions can be evenly distributed in the circumferential direction; through the coaxial rotation of the inner movable frame relative to the outer fixed frame, a group of inner partitions can divide a corresponding partition into two areas, so that when it is necessary to reduce the amount of membrane filament filling, the membrane filament can be filled in only one of the two areas of the partition, which not only meets the demand for changing the amount of membrane filament filling, but also avoids the phenomenon of membrane filament being thrown out or moved during centrifugal casting; multiple groups of total notches facilitate the rotation and movement of the inner partitions on the fixed tube body.

[0011] Furthermore, each group of external partitions includes several external partitions arranged at intervals along the axial direction of the fixed tube body; each group of internal partitions includes several internal partitions arranged at intervals along the axial direction of the movable tube body, wherein the internal partitions and the external partitions are axially staggered, and when the partition is in the minimum membrane filament loading state, each group of internal partitions is located in the middle of the two adjacent groups of external partitions; when the partition is in the maximum membrane filament loading state, each group of internal partitions is axially aligned with the corresponding group of external partitions and staggered.

[0012] Through the above-mentioned structural setting, each partition is effectively separated in the axial direction, and when the inner partition is located in the middle of two adjacent groups of outer partitions, each partition is divided into two areas of equal size, one of which is filled with membrane fibers, and the other is used to open the water distribution channel for the hollow fiber column membrane assembly. In this case, the membrane fiber loading is minimal, and the water distribution is unobstructed, which can meet the market situation with small water production demand; when the staggered inner partitions are aligned axially with the outer partitions, each partition is divided into a 100% size area and a 0% size area. In this case, the membrane fiber loading is maximized, which can meet the market situation with large water production demand.

[0013] Furthermore, each group of total notches includes axial plug-in notches and some circumferential adjustment notches. Each circumferential adjustment notch is configured so that one end thereof is connected to the axial plug-in notch and the other end thereof is axially aligned with a corresponding group of outer partition components, thereby forming a plurality of circumferential support plates for supporting the inner partition components on the fixed tube body within each partition.

[0014] The movable tube body can be coaxially installed in the fixed tube body by entering the axial plug-in notch through the internal partition. By setting the circumferential adjustment notch, the internal partition can be rotated to drive the movable tube body to move coaxially relative to the fixed tube body (or the movable tube body can be rotated coaxially relative to the fixed tube body to drive the internal partition to move), thereby adjusting the position of the internal partition in each partition to meet different membrane filament loading requirements.

[0015] Furthermore, the number of groups of total gaps, the number of groups of external partitions and the number of groups of internal partitions are all six, and the number of partitions is six.

[0016] Through the above structural setting, the adjustable partition water distribution partition frame can be divided into six partitions during the first partitioning, and each partition has a sector area of ​​60°.

[0017] Furthermore, each group of external partitions includes two external partitions, and each group of internal partitions includes three internal partitions; each group of total notches includes an axial plug-in notch and two circumferential adjustment notches, thereby forming three circumferential support plates on the fixed tube body in each of the partitions, wherein the root ends of the two circumferential support plates located on the top of the three circumferential support plates are connected to the corresponding external partitions, and the free ends thereof are adjacent to the axial plug-in notches, and the upper surface of the circumferential support plate located at the bottom of the three circumferential support plates is connected to the bottom end of the axial plug-in notch, thereby when each partition is in the minimum membrane filament filling state, each group of internal partitions is located in the axial plug-in notch of the corresponding group of total notches, and the lowest internal partition is supported on a circumferential support plate at the bottom; when each partition is in the maximum membrane filament filling state, each internal partition is supported on a corresponding circumferential support plate.

[0018] Through the above-mentioned structural setting, the inner partition components and the outer partition components are arranged alternately in the axial direction, thereby allowing the inner partition components to coaxially rotate relative to the fixed tube body to the required position between the minimum membrane wire filling state and the maximum membrane wire filling state of the partition, thereby realizing stepless adjustment of the secondary partition of the partition.

[0019] Furthermore, N limit bars are provided on the top surface of a circumferential support plate at the bottom, thereby forming N+1 limit grooves thereon, and N limit bars are correspondingly provided on the two circumferential support plates above, and N limit grooves are formed thereon, wherein one of the N+1 limit grooves is aligned with the axial plug-in notch, and the other N are aligned one by one with the N limit grooves in the axial direction.

[0020] By setting the limit grooves, the rotation process of the inner partition can be limited in one of the limit grooves, so that it can be positioned at a certain membrane wire filling state between the minimum membrane wire filling state and the maximum membrane wire filling state of the partition, and this certain membrane wire filling state corresponds to the required membrane wire water production.

[0021] Furthermore, N is three, and two adjacent limiting grooves form an angle of 10°.

[0022] Through the above-mentioned structural setting, each partition (six partitions, each partition is 60°) can be adjusted to the minimum membrane wire filling state (membrane wire is filled in a 30° area of ​​the partition), a smaller membrane wire filling state (each partition is divided into a 40° area and a 20° area, and membrane wire is filled in the 40° area), a larger membrane wire filling state (each partition is divided into a 50° area and a 10° area, and membrane wire is filled in the 50° area), and a maximum membrane wire filling state (each partition is divided into a 60° area and a 0° area, it can also be considered that the partition is not divided twice, and membrane wire is filled in the 60° area).

[0023] Furthermore, each inner partition and / or each outer partition is provided with a plurality of glue holes; each side of each inner partition and each outer partition is provided with a circular arc chamfer.

[0024] By setting the glue holes, the resin glue can be used to fill every corner of the adjustable partition water distribution partition frame; by setting the arc chamfers, the membrane wires can be effectively prevented from being scratched when in contact.

[0025] These and other aspects of the present invention will be more clearly elucidated with reference to the embodiments described hereinafter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The structure and further objects and advantages of the present invention will be better understood from the following description taken in conjunction with the accompanying drawings, in which like reference numerals identify like elements:

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of an external fixing frame of an adjustable partitioned water distribution frame for a hollow fiber column membrane module according to a specific embodiment of the present invention;

[0028] Figure 2 3D schematic diagram of the inner movable frame of the adjustable partitioned water distribution frame for the hollow fiber column membrane module according to this specific embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the three-dimensional structure of the adjustable partitioned water distribution partition frame for the hollow fiber column membrane module according to this specific embodiment of the present invention, when each partition is at a minimum membrane fiber loading state;

[0030] Figure 4 yes Figure 3 The three-dimensional structural diagram of the hollow fiber column membrane module shown is a state where each partition is at a smaller membrane fiber loading amount after the inner partition member of the adjustable partition water distribution partition frame is rotated counterclockwise by 10 degrees;

[0031] Figure 5 yes Figure 3 The three-dimensional structural diagram of the hollow fiber column membrane module shown is a state in which each partition is at a large membrane fiber loading capacity after the inner partition member of the adjustable partition water distribution partition frame is rotated 20 degrees counterclockwise;

[0032] Figure 6 yes Figure 3 The three-dimensional structural diagram of the hollow fiber column membrane module shown is a schematic diagram of each partition being at a maximum membrane fiber loading state after the inner partition of the adjustable partition water distribution partition frame is rotated 30 degrees counterclockwise;

[0033] Figure 7 yes Figure 1 A partial enlarged schematic diagram of the external fixator shown;

[0034] Figure 8 yes Figure 3 A partially enlarged schematic diagram of an adjustable partition water distribution frame for a hollow fiber column membrane module is shown;

[0035] Figure 9 yes Figure 5 The three-dimensional structural diagram of the hollow fiber column membrane module shown is that the adjustable partitioned water distribution partition frame is installed in the screw barrel of the hollow fiber column membrane module;

[0036] Figure 10 yes Figure 9 An axial cross-sectional view of the three-dimensional structure along the axis;

[0037] Figure 11 3D schematic diagram of the external fixing frame of the adjustable partitioned water distribution frame for the hollow fiber column membrane module according to another specific embodiment of the present invention;

[0038] Figure 12 It is a schematic diagram of the three-dimensional structure of the inner movable frame of the adjustable partition water distribution partition frame for the hollow fiber column membrane module according to another specific embodiment of the present invention. DETAILED DESCRIPTION

[0039] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0040] First of all, it should be noted that the "minimum membrane filament loading state" of each partition referred to in this article refers to the state where the membrane filament loading amount in each partition is at the minimum amount, or the state where the membrane area in each partition is at the minimum membrane area; the "maximum membrane filament loading state" of each partition referred to in this article refers to the state where the membrane filament loading amount in each partition is at the maximum amount, or the state where the membrane area in each partition is at the maximum membrane area.

[0041] like Figures 1 to 6 As shown, according to a specific embodiment of the present invention, an adjustable partition water distribution partition frame 100 for a hollow fiber column membrane assembly includes an outer fixed frame 1 and an inner movable frame 3, the outer fixed frame 1 includes a fixed tube body 10 and a plurality of groups of outer partition members 12 that divide the peripheral area of ​​the fixed tube body 10 into a plurality of partitions 11, the inner movable frame 3 includes a movable tube body 30 coaxially located in the fixed tube body 10 and a plurality of groups of inner partition members 32 arranged on the periphery of the movable tube body 30 corresponding to the plurality of groups of outer partition members 12, wherein the inner movable frame 3 is configured to be coaxially rotatable relative to the outer fixed frame 1, so that each group of inner partition members 32 can be rotatably mounted on the fixed tube body 10 between two adjacent groups of outer partition members 12, thereby making each partition 11 in a minimum membrane filament filling state (see Figure 3 ) and maximum membrane loading state (see Figure 6 ) between them. It should be noted that, in this embodiment, Figure 3 The minimum membrane filament loading state shown and Figure 6 There are two states between the maximum membrane filament loading state shown: the smaller membrane filament loading state, see Figure 4 ; Larger membrane filament loading state, see Figure 5 .

[0042] like Figure 1 As shown, the multiple groups of external partitions 12 on the external fixator 1 extend radially outward from the fixed tube 10 and are evenly distributed along the circumference of the fixed tube 10. Figure 2 As shown, the multiple groups of inner partitions 32 on the inner movable frame 3 extend radially outward from the movable tube body 30 and are evenly distributed along the circumference of the movable tube body 30. Figure 1 As shown, the fixed tube body 10 is provided with a plurality of groups of total notches 13, each group of total notches 13 is arranged so that a corresponding group of inner partition members 32 can radially penetrate it and be rotatably mounted on the fixed tube body 10, Figures 3 to 6 .

[0043] like Figure 1 and Figure 2 As shown, each group of outer partitions 12 includes several outer partitions 12 (i.e., several layers of outer partitions 12) arranged axially at intervals along the fixed tube body 10; each group of inner partitions 32 includes several inner partitions 32 (i.e., several layers of inner partitions 32) arranged axially at intervals along the movable tube body 30. Figures 3 to 6 As shown, the inner partition 32 and the outer partition 12 are axially staggered, and when the partition 11 is in the minimum membrane yarn filling state (see Figure 3 ), each group of inner partitions 32 is located in the middle of two adjacent groups of outer partitions 12; when the partition 11 is in the state of maximum membrane yarn loading (see Figure 6 ), each group of inner partitions 32 is axially aligned with a corresponding group of outer partitions 12 and arranged in an alternating manner.

[0044] like Figure 7 As shown, and reference Figure 1 and Figure 8 Each group of total notches 13 includes an axial plug-in notch 131 and some circumferential adjustment notches 133. Each circumferential adjustment notch 133 is configured so that one end thereof is connected to the axial plug-in notch 131 and the other end thereof is axially aligned with a corresponding group of outer partitions 12, thereby forming a plurality of circumferential support plates (marked with numbers 15, 17 and 19 in the figure) for supporting the inner partitions 11 on the fixed tube body 10 in each partition 11.

[0045] For example Figure 1 and Figure 2 As shown, in this embodiment, the external fixator 1 includes six groups of total notches 13, six groups of external partitions 12, and six groups of internal partitions 32, thereby forming six partitions 11. Each group of external partitions 12 includes two external partitions 12 (i.e., two layers of external partitions 12 in the axial direction), and each group of internal partitions 32 includes three internal partitions 32 (i.e., two layers of external partitions 32 in the axial direction). Each group of total notches 13 includes an axial insertion notch 131 and two circumferential adjustment notches 133, thereby forming three circumferential support plates on the fixed tube body 10 in each of the partitions, which are labeled with numbers 15, 17, and 19 in the figure. Figure 1 As shown, and reference Figure 7, for the two circumferential support pieces located on the top of the three circumferential support pieces (circumferential support piece 15 and circumferential support piece 17), their root ends are connected to the corresponding outer partition 12, and their free ends are adjacent to the axial insertion notch 131; and the circumferential support piece 19 located at the bottom, its upper surface is connected to the axial insertion notch 131, so that when each partition 11 is in the state of minimum membrane filament loading, as shown Figure 3 As shown, each group of inner partitions 32 is located in the axial insertion notch 131 of the corresponding group of total notches 13 and is located in the middle of the two adjacent groups of outer partitions 12, and the bottom inner partition 32 is supported on a circumferential support sheet 19 at the bottom; when each partition 11 is in the state of maximum membrane yarn loading, as shown in FIG. Figure 6 As shown, at least a portion of the inner partitioning components 32 in each group of inner partitioning components 32 are located in the circumferential adjustment notches 133 of the corresponding group of total notches 13, and are axially aligned and staggered with the corresponding group of outer partitioning components 12, and each inner partitioning component 32 is supported on a corresponding circumferential support plate.

[0046] It should be noted that, in this embodiment, Figure 6 As shown, when the partition 11 is in the state of maximum membrane yarn loading, as shown in FIG. Figure 6 As shown, the lower two inner partitions 32 of each group of inner partitions 32 are located in the corresponding circumferential adjustment notches 133, and the uppermost inner partition 32 is located above the fixed tube body 10. The group of inner partitions 32 is axially aligned and staggered with the corresponding group of outer partitions 12, and each inner partition 32 is located on a corresponding circumferential support plate, that is, the uppermost inner partition 32 is located on the circumferential support plate 15, the middle inner partition 32 is located on the circumferential support plate 17, and the lowermost inner partition 32 is located on the circumferential support plate 19.

[0047] For example Figure 1 As shown, and reference Figure 7 In this embodiment, three stop bars 14 are provided on the top surface of the circumferential support plate 19, thereby forming four stop grooves 16 therein. Correspondingly, three stop bars 14 are also provided on the circumferential support plates 15 and 17, each with three stop grooves 16 therein. It should be understood that the "corresponding arrangement" of the stop bars 14 on the three circumferential support plates means that they are aligned in the axial direction, and thus the corresponding stop grooves 16 are also aligned in the axial direction.

[0048] like Figures 1 to 8As shown, it should also be understood that because the external fixator 1 is provided with six sets (one pair per set in this embodiment, i.e., six pairs in total) of external partitions 12, each partition 11 forms a 60° sector-shaped surface. Since four limiting grooves 16 are formed on the top surface of the circumferential support plate 19, every two adjacent limiting grooves 16 form a 10° angle. Thus, by rotating the internal partitions 32, each partition 11 can be divided into two parts:

[0049] When the inner partition 32 is located in the axial insertion notch 131 and confined in the first limiting groove 16 on the left, the inner partition 32 is exactly located in the middle of the two adjacent groups of outer partitions 12, that is, the current partition 11 is divided into two equal 30° sector-shaped areas, so that the membrane filament can be loaded into one of the 30° sector-shaped areas (for example, the one on the left), that is, the minimum membrane filament loading amount is achieved;

[0050] When the inner partition 32 rotates 10° counterclockwise and is confined in the second limiting groove 16 on the left, the current partition 11 is divided into a 40° sector area and a 20° sector area, so that the membrane filament can be loaded in the 40° sector area, that is, a smaller membrane filament loading amount is achieved;

[0051] When the inner partition 32 continues to rotate counterclockwise by 10° and is confined in the third limiting groove 16 on the left, the current partition 11 is divided into a 50° sector area and a 10° sector area, so that the membrane filament can be loaded in the 50° sector area, that is, a larger membrane filament loading amount is achieved;

[0052] When the inner partition 32 continues to rotate counterclockwise by another 10° and is confined to the fourth limiting groove 16 on the left, the current partition 11 is divided into a 60° sector-shaped area and a 0° sector-shaped area, so that the membrane filament can be loaded in the 60° sector-shaped area, thus achieving the maximum membrane filament loading amount.

[0053] It should be understood that if Figure 3 As shown, although according to the above description, the membrane filaments can be loaded only in one of the 30° fan-shaped areas (such as the one on the left) to achieve the minimum membrane filament loading amount, the actual application is not limited to this. If the market needs it, in other embodiments, Figure 3 In the state shown, the membrane yarn can be filled in both 30° sectors of each partition 11. In this case, the amount of membrane yarn filled can be maximized, and the water distribution pressure and resin end seal strength are also satisfactory. That is, in the present invention, there are two situations for the maximum membrane yarn filling amount. One is as follows: Figure 3 As shown, another Figure 5 As shown. According to the actual application, Figure 3 The arrangement structure of the adjustable partitioned water distribution partition frame 100 can achieve both the minimum membrane filament filling state and the maximum membrane filament filling state.

[0054] For example Figure 2 As shown, in this embodiment, the inner partition 32 is provided with a plurality of glue holes 320. It should be understood that in other embodiments, the outer partition 12 may be provided with a plurality of glue holes, or the inner partition 32 and the outer partition 12 may each be provided with a plurality of glue holes.

[0055] In addition, although not shown in the figures, in this embodiment, each edge of the outer partition 12 and the inner partition 32 is provided with a circular chamfer to prevent the membrane wire from being scratched when it comes into contact with it.

[0056] For example Figure 2 As shown, in this embodiment, the inner movable frame 3 further includes a mounting ring 34 located at the top, and the mounting ring 34 is connected to the free end of the uppermost inner partition member 32 in each group of inner partition members 32 .

[0057] like Figure 9 and Figure 10 As shown, before the two ends of the hollow fiber column membrane module are sealed, that is, before centrifugal casting, the mounting ring 34 is overlapped on the annular support boss 301 in the screw barrel 300 of the hollow fiber column membrane module. Figure 9 and Figure 10 As shown, in this embodiment, six rows of axial grooves 312 are provided on the inner wall of the screw barrel 300 to receive the six groups of external partitions 12. At the same time, multiple rows of axial grooves 332 are provided on the inner wall of the screw barrel 300 in the area where each partition 11 is located. In this embodiment, there are four rows of axial grooves 332 to receive the six groups of internal partitions 32 respectively corresponding to the minimum membrane wire filling state, the smaller membrane wire filling state, the larger membrane wire filling state and the maximum membrane wire filling state.

[0058] It should be noted that although six groups of outer partitions 12, inner partitions 32, and total notches 13 are provided in this embodiment, in other embodiments, the number of groups can be changed as needed, for example, to fewer or more groups, thereby correspondingly changing the number of partitions from six to fewer or more. The number of limit slots 16 can also be changed according to market needs. For example, the angle between two limit slots can be changed from 10° to 5° or another angle. In addition, the number of circumferential adjustment notches 133 in this embodiment can be changed to three. For example, if the axial length of the fixed tube body 10 is increased, a circumferential adjustment notch can be provided above the circumferential support plate 15.

[0059] In addition, it should be noted that although Figures 1 to 8In the embodiment shown, the number of each group of inner partitions 32 is greater than the number of each group of outer partitions 12. In another embodiment, the number of each group of outer partitions 12 may be greater than the number of each group of inner partitions 32, such as Figure 11 and Figure 12 As shown. Figure 11 and Figure 12 In the other embodiment shown, a mounting ring 14 is provided on the external fixator 1 . The mounting ring 14 is located on the top of the external fixator 1 and connects the free ends of the uppermost external partitions 12 of each group of external partitions 12 .

[0060] Compared with the prior art where the water distribution partition frame is only a fixed frame and the membrane fiber loading amount of each partition is fixed, the present invention has an adjustable partition water distribution partition frame composed of two parts, a fixed part and a movable part. Each fixed partition of the external fixed frame can be flexibly divided into two parts by the internal movable frame, so that the membrane fiber loading amount of each partition can be flexibly adjusted, and the water distribution channel can be opened to different degrees accordingly while the membrane fiber loading amount is adjusted (the smaller the membrane fiber loading amount of each partition, the greater the degree of opening of the water distribution channel), thereby meeting some personalized needs in the market based on cost and water quality considerations.

[0061] Specifically, in the present invention, the membrane filament loading amount of each partition decreases in the process of adjusting from the maximum membrane filament loading state to the minimum membrane filament loading state; accordingly, as the membrane filament loading amount decreases, the interval between the membrane filament loading areas of adjacent partitions (that is, between the two groups of membrane bundles) increases, that is, the degree of opening of the water distribution channel increases. This adjustment process can adjust the water distribution and pressure of the membrane assembly, and accordingly, the membrane filament utilization rate can also be adjusted.

[0062] That is to say, the adjustable partitioned water distribution partition frame of the present invention can provide membrane component manufacturers with the possibility of producing multiple product models for membrane components of the same specifications (i.e., the same membrane shell diameter), so that membrane components of different product models have different membrane filament filling amounts, different water distribution and pressure conditions, and different membrane filament utilization rates. In this way, users can choose to customize the product model that best meets their actual usage needs from the membrane component manufacturer according to their actual usage needs (such as water production and water quality), or users can choose a cost-effective product model according to their actual usage needs to maximize the value of their products.

[0063] The technical content and technical features of the present invention have been disclosed above. However, it is understood that within the spirit or creative concept of the present invention, those skilled in the art may make various changes and improvements to the above structure, including combinations of the technical features disclosed or claimed herein, as well as other combinations that clearly include these features. Such variations and / or combinations fall within the technical field of the present invention and fall within the scope of protection of the claims of the present invention.

Claims

1. An adjustable partition water distribution frame for hollow fiber column membrane module, characterized in that The device comprises an outer fixed frame and an inner movable frame, wherein the outer fixed frame is provided with a plurality of partitions for loading membrane filaments, and the inner movable frame is configured to be rotatably mounted on the outer fixed frame to separate each partition, so that each partition can be switched between a minimum membrane filament loading state and a maximum membrane filament loading state; The outer fixing frame includes a fixed tube body and a plurality of groups of outer partitioning members that divide the outer periphery of the fixed tube body into the plurality of partitions; the inner movable frame includes a movable tube body coaxially located within the fixed tube body and a plurality of groups of inner partitioning members disposed on the outer periphery of the movable tube body corresponding to the plurality of groups of outer partitioning members; wherein the inner movable frame is configured to be coaxially rotatable relative to the outer fixing frame so that each group of inner partitioning members is rotatably mounted on the fixed tube body within the partition between two adjacent groups of outer partitioning members; A mounting ring is provided on the external fixed frame or the internal movable frame. When the number of the external partitions in each group is greater than the number of the internal partitions in each group, the mounting ring is located at the top of the external fixed frame and connected to the free end of the topmost external partition in each group of external partitions. When the number of the internal partitions in each group is greater than the number of the external partitions in each group, the mounting ring is located at the top of the internal movable frame and connected to the free end of the topmost internal partition in each group of internal partitions.

2. The adjustable partition water distribution frame for hollow fiber column membrane module according to claim 1, characterized in that: The multiple groups of outer partitions extend radially outward from the fixed tube body and are evenly distributed along the circumference of the fixed tube body, and the multiple groups of inner partitions extend radially outward from the movable tube body and are evenly distributed along the circumference of the movable tube body, wherein the fixed tube body is provided with multiple groups of total notches, and each group of total notches is configured so that a corresponding group of the inner partitions can radially penetrate it and be rotatably mounted on the fixed tube body.

3. The adjustable partition water distribution partition frame for the hollow fiber column membrane module according to claim 2, characterized in that: Each group of the outer partitions includes a plurality of the outer partitions arranged at intervals along the axial direction of the fixed tube body; each group of the inner partitions includes a plurality of the inner partitions arranged at intervals along the axial direction of the movable tube body, wherein the inner partitions and the outer partitions are axially staggered, and when the partition is in the minimum membrane filament loading state, each group of the inner partitions is located in the middle of two adjacent groups of the outer partitions; when the partition is in the maximum membrane filament loading state, each group of the inner partitions is axially aligned with and staggered with a corresponding group of the outer partitions.

4. The adjustable partitioned water distribution partition frame for the hollow fiber column membrane module according to claim 3, characterized in that: Each group of the total notches includes an axial plug-in notch and some circumferential adjustment notches. Each circumferential adjustment notch is configured so that one end thereof is connected to the axial plug-in notch and the other end thereof is axially aligned with a corresponding group of the outer partition components, thereby forming a plurality of circumferential support plates for supporting the inner partition components on the fixed tube body in each of the partitions.

5. The adjustable partition water distribution partition frame for the hollow fiber column membrane module according to claim 4, characterized in that: The number of the multiple groups of total gaps, the multiple groups of outer partitions and the multiple groups of inner partitions is six, and the number of the partitions is six.

6. The adjustable partitioned water distribution frame for the hollow fiber column membrane module according to claim 5, characterized in that: Each group of the outer partitions includes two outer partitions, and each group of the inner partitions includes three inner partitions; each group of the total notches includes an axial plug-in notch and two circumferential adjustment notches, so that three circumferential support plates are formed on the fixed tube body in each partition, wherein the root ends of the two circumferential support plates located on the top of the three circumferential support plates are connected to the corresponding outer partitions, and their free ends are adjacent to the axial plug-in notches, and the upper surface of the circumferential support plate located at the bottom is connected to the bottom end of the axial plug-in notch, so that when each partition is in the minimum membrane filament filling state, each group of the inner partitions is located in the axial plug-in notch of the corresponding group of the total notches, and the bottom inner partition is supported on the circumferential support plate at the bottom; when each partition is in the maximum membrane filament filling state, each inner partition is supported on a corresponding circumferential support plate.

7. The adjustable partitioned water distribution frame for the hollow fiber column membrane module according to claim 6, characterized in that: N limiting strips are provided on the top surface of one of the circumferential support plates at the bottom to form N+1 limiting grooves thereon, and N limiting strips are correspondingly provided on the two circumferential support plates at the top and N limiting grooves are formed thereon, wherein one of the N+1 limiting grooves is aligned with the axial insertion notch, and the other N limiting grooves are aligned one by one with the N limiting grooves in the axial direction.

8. The adjustable partitioned water distribution partition frame for the hollow fiber column membrane module according to claim 7, characterized in that: The N number is three, and two adjacent limiting grooves form an angle of 10°.

9. The adjustable partitioned water distribution frame for hollow fiber column membrane modules according to any one of claims 1 to 8, characterized in that: Each of the inner partitions and / or each of the outer partitions is provided with a plurality of glue holes; each side of each of the inner partitions and each of the outer partitions is provided with a circular arc chamfer.

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