Hollow fiber cartridge membrane module

Abstract

The present application relates to a kind of hollow fiber column membrane module, including pressure-resistant membrane shell, a pair of adjustable partition water distribution partition, center tube and multiple groups of membrane filaments, multiple groups of membrane filaments are arranged around center tube and are filled in corresponding adjustable partition water distribution partition respectively at both ends, and form end seal by resin glue centrifugal casting on both ends of pressure-resistant membrane shell;Adjustable partition water distribution partition includes fixed frame and movable frame, multiple partitions for one-to-one corresponding filling multiple groups of membrane filaments are provided on fixed frame, movable frame is movably installed on fixed frame to separate each partition before centrifugal casting, so that each partition can be converted between minimum membrane filament filling amount state and maximum membrane filament filling amount state.The present application is first partitioned by outer partition piece, then the first partition is secondly partitioned by the movement of inner partition piece on fixed frame, so as to adjust the membrane filament filling area of each partition, so as to match the required membrane filament filling amount.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment equipment, and in particular to a hollow fiber column membrane module. BACKGROUND

[0002] In the field of hollow fiber column membrane module of outer pressure type, membrane filaments are fixed on water distribution separators at both ends of the hollow fiber column membrane module, and then end sealing is performed on both ends of the hollow fiber column membrane module by using resin to form resin end faces, so that raw water such as industrial wastewater or sewage enters the inner cavity of the membrane shell assembly of the hollow fiber column membrane module through one end thereof and is filtered by the membrane filaments, and the concentrated water left after the filtration is discharged from the concentrated water outlet of the hollow fiber column membrane module, and the permeate, i.e. product water, after being filtered by the membrane filaments flows out from the product water outlet.

[0003] The water distribution separator is used to increase the strength of the resin and increase the strength of the resin end face under the impact of water flow, and also plays a certain water distribution role. In the prior art, the water distribution separator divides the peripheral area thereof into multiple regions, i.e. multiple sub-regions, and membrane filaments are filled in each region. Since the area of each region is fixed, the amount of membrane filaments filled in each region is also fixed in the case of centrifugal casting. However, in reality, due to different water qualities and different market demands for the amount of product water, the membrane filament structure and water flow distribution channel in the hollow fiber column membrane module need to be changed to meet the market demand in the case of unchanged membrane shell assembly. However, for the existing water distribution separator, it cannot effectively open the water distribution channel between the membrane filaments to make the water acting on the membrane filaments more uniform, nor can it adjust the filling amount of the membrane filaments at will, i.e. when the filling amount of the membrane filaments in each region is reduced, the membrane filaments cannot be fixed due to too small proportion in the spiral cylinder of the hollow fiber column membrane module in the process of centrifugal casting, and the membrane filaments will move randomly under the centrifugal force in the process of centrifugal casting, so that they cannot be uniformly distributed in the spiral cylinder, and even the membrane filaments will be directly thrown into the middle part of the spiral cylinder, i.e. separated from the water distribution separator and enter the middle part of the spiral cylinder, thereby affecting the yield of the centrifugal casting product or causing the casting to fail. SUMMARY

[0004] To overcome the above-mentioned defects, it would be advantageous to provide a hollow fiber column membrane module with adjustable membrane filament filling amount to meet different product water demands.

[0005] To this end, the present application provides a hollow fiber column membrane module, which comprises:

[0006] a pressure-resistant membrane shell, on which a water inlet, a product water outlet and a concentrated water outlet are arranged;

[0007] a pair of adjustable sub-region water distribution separators, which are respectively installed at both ends in the pressure-resistant membrane shell;

[0008] A central tube is located in the pressure-resistant membrane shell and has two ends connected to a corresponding adjustable partition water distribution frame. The central tube is provided with a plurality of through holes;

[0009] Multiple groups of membrane filaments are arranged around the central tube and are respectively loaded on corresponding adjustable partitioned water distribution partition frames at both ends, and are centrifugally cast with resin glue to form end seals on both ends of the pressure-resistant membrane shell. Each group of membrane filaments includes a plurality of membrane filaments.

[0010] Among them, the adjustable partitioned water distribution partition frame includes a fixed frame and a movable frame. The fixed frame is provided with multiple partitions for loading multiple groups of membrane fibers one by one. The movable frame is configured to be movably installed on the fixed frame before centrifugal casting to separate each partition, so that each partition can be switched between the minimum membrane fiber loading state and the maximum membrane fiber loading state.

[0011] In the present invention, raw water can enter the inner cavity of the pressure-resistant membrane shell through the water inlet, and be filtered through multiple groups of membrane fibers to produce water. The produced water comes out from each membrane fiber and flows out through the water production port, while the concentrated water flows from the inner cavity of the pressure-resistant membrane shell through the flow center tube and flows out from the concentrated water port; the partitions are divided by external partitioning components (the first area division), and then the partitions can be divided / separated for the second time (the second area division) by moving the movable frame on the fixed frame, so that on the one hand the membrane fiber filling area of ​​each partition can be adjusted to match the required membrane fiber filling amount, and on the other hand the resin casting strength of the hollow fiber column membrane assembly can be further enhanced; in short, through the setting of the adjustable partition water distribution partition frame, before the hollow fiber column membrane assembly is end-sealed, the position of the movable frame relative to the fixed frame can be adjusted according to market demand to adjust the membrane fiber filling amount, and at the same time, the water distribution channel can be opened to different degrees, which is beneficial to water distribution and subsequent product maintenance.

[0012] Furthermore, the fixed frame includes a fixed tube body and multiple groups of external partitions that divide the peripheral area of ​​the fixed tube body into multiple partitions, and the movable frame includes multiple groups of internal partitions arranged corresponding to the multiple groups of external partitions, wherein each group of internal partitions is arranged to be movably mounted on the fixed frame in a partition between two adjacent groups of external partitions.

[0013] 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.

[0014] In a specific embodiment, 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, the movable frame includes a movable tube body coaxially located in 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.

[0015] 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 movable frame relative to the fixed frame, a group of internal partitions can divide a corresponding partition into two areas, so that when it is necessary to reduce the amount of membrane wire filling, the membrane wire can be filled in only one of the two areas of the partition. This not only meets the demand for changing the amount of membrane wire filling, but also avoids the phenomenon of membrane wire being thrown out or moving during centrifugal casting; multiple groups of total notches facilitate the rotation and movement of the internal partitions on the fixed tube body.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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°.

[0022] 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.

[0023] 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 rotate coaxially relative to the fixed tube body of the fixed frame 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.

[0024] 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.

[0025] 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.

[0026] Furthermore, N is three, and two adjacent limiting grooves form an angle of 10°.

[0027] 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, that is, the 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).

[0028] Furthermore, each inner partition and / or each outer partition is provided with a plurality of glue holes.

[0029] By setting the glue holes, the resin glue can be used to fill every corner of the adjustable partition water distribution partition frame.

[0030] Furthermore, each side of each outer partition and each inner partition is provided with a circular arc chamfer.

[0031] The above-mentioned structural arrangement can effectively prevent the membrane filaments from being scratched when in contact with each other.

[0032] In another specific embodiment, each group of inner partitions of the movable frame is arranged to be radially movably mounted on two adjacent groups of outer partitions of the fixed frame between two adjacent groups of outer partitions.

[0033] In this invention, radial movement of the internal partitioning element on the fixed frame creates a secondary partitioning / division (secondary area division) within the partitions, thereby adjusting the membrane fiber loading area of ​​each partition to match the required membrane fiber loading. In other words, before centrifugal casting (i.e., end sealing) of the hollow fiber column membrane module's ends, if the membrane fiber loading of each partition needs to be adjusted, simply rotate the movable frame to adjust the position of the internal partitioning element within each partition, thereby adjusting the membrane fiber loading area of ​​each partition to meet the required membrane fiber loading.

[0034] Furthermore, each group of internal partition components includes two radially spaced, circumferentially retractable, arc-shaped internal partition sleeves, and when the interval between the two internal partition sleeves is the smallest, the partition is in a state of minimum membrane wire loading; when the interval between the two internal partition sleeves is the largest, the partition is in a state of maximum membrane wire loading.

[0035] Through the above-mentioned structural arrangement, the size of the membrane filament filling area can be adjusted by radially moving a single or two inner partition sleeves and simultaneously performing circumferential expansion and contraction operations on the inner partition sleeves.

[0036] In one variation, each group of inner partitioning members is constructed as a circumferentially retractable, arc-shaped inner partitioning sleeve. When the inner partitioning sleeve is radially close to the fixed tube body, the partition is in a state of minimum membrane wire loading; when the inner partitioning sleeve is radially away from the fixed tube body, the partition is in a state of maximum membrane wire loading.

[0037] Through the above-mentioned structural arrangement, the size of the membrane filament filling area can be adjusted by radially moving a single inner partition sleeve and simultaneously performing circumferential expansion and contraction operations on the inner partition sleeve.

[0038] Furthermore, the inner partition sleeve includes an inner partition base plate and an inner partition pull-out plate, wherein the inner partition base plate has a receiving cavity with a side opening, and the inner partition pull-out plate is suitable for being installed in the receiving cavity so as to be circumferentially withdrawn or pushed through the side opening.

[0039] Through the above-mentioned structural arrangement, the inner partition pull-out plate can pull out the part located in the accommodating cavity of the inner partition substrate from the inner partition substrate according to the needs of the circumferential length, and can also push the part located outside the inner partition substrate into its accommodating cavity according to the needs of the circumferential length, thereby changing the circumferential length of the inner partition sleeve to just overlap the two adjacent groups of outer partition components.

[0040] Furthermore, the inner partition base plate and the inner partition pull-out plate are provided with limiting buckles at their respective outer ends away from each other; each group of outer partition components includes a pair of outer partition plates arranged in parallel and spaced apart, and each outer partition plate is provided with a radial adjustment slide groove and a plurality of axial positioning grooves connected to the radial adjustment slide groove; wherein, the inner partition sleeve is suitable for being overlapped in the corresponding axial positioning grooves of the two outer partition plates facing each other of the two adjacent groups of outer partition components through the limiting buckles, and can adjust the radial position of the inner partition sleeve by the radial movement of the limiting buckle in the radial adjustment slide groove.

[0041] Through the above-mentioned structural setting, when it is necessary to adjust the position of the inner partition sleeve, just move the limit buckle out of the axial positioning groove and into the radial adjustment groove, then it can slide along the radial adjustment groove to change the position of the inner partition sleeve, thereby changing the membrane wire filling area of ​​the partition.

[0042] Furthermore, the inner partition base plate and the inner partition pull-out plate are provided with a pair of axially aligned limit buckles at their respective outer ends away from each other; each outer partition plate is provided with two radial adjustment grooves corresponding to the pair of limit buckles, and each outer partition plate is provided with multiple axial positioning grooves connected to each radial adjustment groove.

[0043] The above-mentioned structural arrangement makes the connection between the inner partition and the outer partition more stable.

[0044] Furthermore, each inner partition plate and / or each outer partition member is provided with a plurality of glue holes.

[0045] By setting the glue holes, the resin glue can be used to fill every corner of the adjustable partition water distribution partition frame.

[0046] Still further, each edge of each outer partition member and each inner partition sleeve is provided with a circular arc chamfer.

[0047] The above-mentioned structural arrangement can effectively prevent the membrane filaments from being scratched when in contact with each other.

[0048] Furthermore, in the above-mentioned one specific embodiment and another specific embodiment, the pressure-resistant membrane shell includes a membrane tube, a pair of screw barrels and a pair of end covers, wherein the membrane tube is coaxially installed with the central tube and is connected one-to-one with the pair of screw barrels at both ends thereof, the screw barrels and the end covers are connected together by stainless steel clamps, and wherein an annular support boss is provided on the inner wall of the screw barrel, and an adjustable partitioned water distribution partition frame is provided with a mounting ring located on a fixed frame or a movable frame, and the mounting ring is overlapped on the annular support boss.

[0049] Through the above structural arrangement, the various parts of the pressure-resistant membrane shell are fixed to each other, and by means of the cooperation between the annular support boss and the mounting ring, the adjustable partitioned water distribution partition frame can be positioned relative to the screw barrel before end sealing.

[0050] Furthermore, the above-mentioned hollow fiber column membrane assembly also includes a number of membrane wire distribution racks, which are installed axially at intervals in the membrane tube and are provided with a central hole for the central tube to pass through and a plurality of dispersion areas surrounding the central hole. The plurality of dispersion areas are arranged one-to-one corresponding to the above-mentioned plurality of partitions.

[0051] By setting up the membrane wire distribution rack, the order of the membrane wires after partition filling can be effectively maintained in the membrane tube, avoiding the membrane wires from squeezing and overlapping each other in the inner cavity of the membrane tube, thereby avoiding affecting the membrane filtration function of the membrane wires. At the same time, it also helps to open the water distribution channel and helps to clean the pollutants on the surface of the membrane wires during later maintenance, thereby increasing the stability of the membrane wire operation and increasing the use effect of the membrane wire.

[0052] Going further, each membrane fiber distribution rack includes a first distribution rack and a second distribution rack, wherein the first distribution rack includes a first tube body and a plurality of first partitioning components, the plurality of first partitioning components extend radially outward from the first tube body and are evenly distributed along the circumference of the first tube body to form the above-mentioned multiple dispersion areas; the second distribution rack includes a second tube body and a plurality of second partitioning components, the plurality of second partitioning components extend radially outward from the second tube body and are evenly distributed along the circumference of the second tube body; a plurality of groups of positioning holes are provided on the first tube body, each group of positioning holes includes a plurality of positioning holes, and a plurality of groups of positioning columns corresponding to the number of the plurality of positioning holes are provided on the second tube body, each group of positioning columns includes one positioning column; the one positioning column can be engaged with any one of the plurality of positioning holes, so that the position of the second distribution rack can be adjusted relative to the first distribution rack to correspond to the position of the above-mentioned movable rack relative to the above-mentioned fixed rack.

[0053] Through the above-mentioned structural setting, the membrane fiber distribution rack can make position adjustment according to the membrane fiber filling state of the adjustable partition water distribution partition rack. That is to say, the second distribution rack of the membrane fiber distribution rack can make position adjustment relative to the first distribution rack to adapt to the membrane fiber filling state of the water distribution partition rack.

[0054] In one of the above-mentioned specific embodiments, multiple rows of first axial grooves are provided on the inner wall of the screw barrel to correspond to and engage multiple groups of external partitions, and multiple rows of second axial grooves are provided on the inner wall of the screw barrel in the area corresponding to each partition to engage multiple groups of internal partitions in each membrane wire filling state between the minimum membrane wire filling state and the maximum membrane wire filling state.

[0055] In this specific embodiment, by cooperating with the first axial groove and the second axial groove with the outer partition and the inner partition respectively, the adjustable partition water distribution partition frame can be further positioned relative to the screw barrel at any membrane fiber loading state before the hollow fiber column membrane assembly is centrifugally cast.

[0056] In another specific embodiment described above, multiple rows of first axial grooves are further provided on the inner wall of the barrel to correspondingly engage multiple groups of outer partitions.

[0057] In this other specific embodiment, by cooperating with the first axial groove and the outer partition member, the fixed frame of the adjustable partition water distribution partition frame can be further positioned relative to the screw barrel before the hollow fiber column membrane module is centrifugally cast.

[0058] 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

[0059] 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:

[0060] Figure 1 is a three-dimensional exploded view of a hollow fiber column membrane module according to a specific embodiment of the present invention;

[0061] Figure 2 yes Figure 1 A longitudinal cross-sectional view of the assembled hollow fiber column membrane module is shown;

[0062] Figure 3 yes Figure 1 The three-dimensional structure diagram of the hollow fiber column membrane module after the screw barrel and the adjustable partition water distribution partition frame are assembled;

[0063] Figure 4 yes Figure 3 The schematic diagram of the structure and water flow path of the three-dimensional structure after adding membrane filaments is shown;

[0064] Figure 5 yes Figure 2 The bottom end of the hollow fiber column membrane module is a schematic diagram of the water inlet end;

[0065] Figure 6 yes Figure 2 The top of the hollow fiber column membrane module is a schematic diagram of the water production end;

[0066] Figure 7 yes Figure 1 A schematic diagram of the three-dimensional structure of the fixed frame of the adjustable partition water distribution partition frame is shown;

[0067] Figure 8 yes Figure 1 A schematic diagram of the three-dimensional structure of the movable frame of the adjustable partition water distribution partition frame;

[0068] Figure 9 yes Figure 1 The three-dimensional structural diagram of the adjustable partitioned water distribution partition frame is shown in the state where each partition is at the minimum membrane wire filling amount;

[0069] Figure 10 yes Figure 9 A schematic diagram of the three-dimensional structure of the adjustable partitioned water distribution partition frame, in which each partition is in a state of smaller membrane filament loading after the inner partition member of the partition frame is rotated 10° counterclockwise;

[0070] Figure 11 yes Figure 9 The schematic diagram of the three-dimensional structure of the adjustable partition water distribution partition frame is shown, in which each partition is in a state of large membrane filament loading after the inner partition member of the adjustable partition water distribution partition frame is rotated 20° counterclockwise;

[0071] Figure 12 yes Figure 9A schematic diagram of the three-dimensional structure of the adjustable partitioned water distribution partition frame, in which each partition is at a maximum membrane filament loading state after the inner partition member of the adjustable partitioned water distribution partition frame is rotated 30° counterclockwise;

[0072] Figure 13 yes Figure 7 A partial enlarged schematic diagram of the fixing frame shown;

[0073] Figure 14 yes Figure 9 A partial enlarged schematic diagram of the adjustable partition water distribution partition frame is shown;

[0074] Figure 15 yes Figure 9 A schematic diagram of the three-dimensional structure of a fixed frame of a variation of the adjustable partitioned water distribution partition frame shown;

[0075] Figure 16 yes Figure 9 A schematic diagram of the three-dimensional structure of a movable frame of a variation of the adjustable partitioned water distribution partition frame shown;

[0076] Figure 17 yes Figure 1 A schematic exploded perspective view of a membrane fiber distribution frame of a hollow fiber column membrane module;

[0077] Figure 18 3D schematic diagram of the structure of an adjustable partitioned water distribution frame of a hollow fiber column membrane module according to another embodiment of the present invention;

[0078] Figure 19 yes Figure 18 A schematic diagram of the three-dimensional structure of the fixed frame of the adjustable partition water distribution partition frame;

[0079] Figure 20 yes Figure 18 The three-dimensional structural diagram of the movable frame of the adjustable partition water distribution partition frame is shown. DETAILED DESCRIPTION

[0080] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0081] 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.

[0082] like Figures 1 to 6As shown, a hollow fiber column membrane module 300 according to a specific embodiment of the present invention includes a pressure-resistant membrane shell composed of a membrane tube 301, a pair of screw barrels 303 and a pair of end caps 305, a plurality of membrane filaments 307, a central tube 309 with a plurality of through holes 319, a pair of adjustable partitioned water distribution partitions 100 installed at both ends of the pressure-resistant membrane shell, and a plurality of membrane filament distribution racks 200. The pressure-resistant membrane shell is provided with a water inlet 302, a water outlet 304 and a concentrated water outlet 306; the screw barrel 303 and the end cap 305 are connected by a stainless steel clamp 335 (only in the Figure 1 The membrane tube 301 is coaxially mounted with the central tube 309 and connected to the pair of screw barrels 303 at both ends. The central tube 309 is located within the pressure-resistant membrane housing, with its ends connected to corresponding adjustable partitioned water distribution dividers 100. Multiple groups of membrane filaments 307 are arranged around the central tube 309, with their ends respectively loaded onto corresponding adjustable partitioned water distribution dividers 100 and sealed at both ends of the pressure-resistant membrane housing by centrifugal casting of resin glue. Each group of membrane filaments 307 includes several membrane filaments. In this embodiment, two membrane filament distribution racks 200 are axially spaced and mounted within the membrane tube 301. Each rack is provided with a central hole 209 for the central tube 309 to pass through and a plurality of distribution zones 201 surrounding the central hole 209. It should be understood that the pressure-resistant membrane housing is also provided with an air inlet 308 to facilitate air washing.

[0083] like Figures 1 to 6 As shown, and reference Figures 7 to 14 As shown, the adjustable partitioned water distribution partition frame 100 includes a fixed frame 1 and a movable frame 3. The fixed frame 1 is provided with a plurality of partitions 11 for one-to-one loading of a plurality of groups of membrane filaments 307 (the plurality of partitions 11 correspond one-to-one to the plurality of dispersion zones 201 of the membrane filament distribution frame 200). The movable frame 3 is configured to be movably mounted on the fixed frame 1 before centrifugal casting to separate each partition 11, so that each partition 11 can be switched between a minimum membrane filament loading state and a maximum membrane filament loading state.

[0084] Specifically, if Figures 7 to 14 As shown, the fixed frame 1 includes a fixed tube body 10 and a plurality of groups of outer partitions 12 that divide the peripheral area of ​​the fixed tube body 10 into a plurality of partitions 11. The movable frame 3 includes a plurality of groups of inner partitions 32 corresponding to the plurality of groups of outer partitions 12. Each group of inner partitions 32 is movably mounted on the fixed frame 1 between two adjacent groups of outer partitions 12, so that each partition 11 is in a state of minimum membrane filament loading (see FIG. Figure 9 ) and maximum membrane filament loading state (see Figure 12 ) between them. It should be noted that, in this embodiment, Figure 9 The minimum membrane filament loading state shown and Figure 12There are two states between the maximum membrane filament loading state shown: the smaller membrane filament loading state, see Figure 10 ; Larger membrane filament loading state, see Figure 11 .

[0085] like Figure 7 As shown, the fixed frame 1 is constituted as an outer partition frame of an adjustable partition water distribution partition frame, and multiple groups of outer partition members 12 thereon extend radially outward from the fixed pipe body 10 and are evenly distributed along the circumference of the fixed pipe body 10. Figure 8 As shown, the movable frame 3 is constituted as an inner partition frame of an adjustable partition water distribution partition frame, which includes a movable tube body 30 coaxially located in the fixed tube body 10. Figure 8 As shown, multiple groups of inner partitions 32 extend radially outward from the movable tube body 30 and are evenly distributed along the circumference of the movable tube body 30. Figure 7 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 9 to 12 .

[0086] like Figure 7 and Figure 8 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 9 to 12 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 9 ), 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 12 ), each group of inner partitions 32 is axially aligned with a corresponding group of outer partitions 12 and arranged in an alternating manner.

[0087] like Figure 13 As shown, and reference Figure 7 and Figure 14 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.

[0088] For example Figure 7 and Figure 8As shown, in this embodiment, the fixing frame 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 marked with numbers 15, 17, and 19 in the figure. Figure 7 As shown, and reference Figure 13 , 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 9 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 12 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.

[0089] It should be noted that, in this embodiment, Figure 12 As shown, when the partition 11 is in the state of maximum membrane yarn loading, as shown in FIG. Figure 12 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.

[0090] For example Figure 7 As shown, and reference Figure 13In 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.

[0091] like Figures 7 to 14 As shown, it should also be understood that because the fixed frame 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. In this way, by rotating the internal partition 32, each partition 11 can be divided into two parts:

[0092] 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;

[0093] 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;

[0094] 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;

[0095] 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.

[0096] It should be understood that if Figure 9 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 9In 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 9 As shown, another Figure 11 As shown. According to the actual application, Figure 9 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.

[0097] For example Figure 8 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.

[0098] 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.

[0099] For example Figure 8 As shown, in this embodiment, the 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 .

[0100] For example Figure 3 and Figure 4 As shown, before the two ends of the hollow fiber column membrane assembly 300 are sealed, that is, before centrifugal casting, the mounting ring 34 is overlapped on the annular support boss 301 in the screw barrel 300. It should be noted that, as Figure 3 and Figure 4 As shown, in this embodiment, six rows of first axial grooves 312 are provided on the inner wall of the screw barrel 300 to correspond to the six groups of outer partitions 12. At the same time, multiple rows of second 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 second axial grooves 332 to correspond to the outer partitions 12. Figure 9 The minimum membrane filament filling state shown, Figure 10 The smaller membrane filament loading state shown, Figure 11 The larger membrane filament loading state and Figure 12 The maximum membrane yarn loading state shown is used to engage the six sets of inner partition members 32.

[0101] It should be understood that if Figure 1 and Figure 2As shown, in this embodiment, the hollow fiber column membrane module 300 further includes a water inlet connector 315 located at its upper end. The two ends of the water inlet connector 315 are respectively mounted on the end cap 305 and the adjustable partitioned water distribution frame 100, thereby connecting the concentrate inlet 306 and the central tube 309, so that the concentrate can flow from the central tube 309 to the concentrate inlet 306 via the water inlet connector 315. In addition, it should be noted that in this embodiment, the air inlet 308 is formed by an air inlet assembly 318, which is mounted on the end cap 305 at the lower end of the hollow fiber column membrane module 300.

[0102] 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.

[0103] It should also be noted that: taking the state of large amount of membrane filament filling as an example, refer to Figures 3 to 6 as well as Figure 11 The 50° sector area of ​​each partition 11 constitutes the membrane yarn filling area 110 (see Figure 5 In this area, the water distribution port 111 is connected to the water inlet 302), and the other 10° fan-shaped area constitutes the water distribution channel 112 (see Figure 5 , the water distribution port 113 in this area is also connected to the water inlet 302), as a water distribution channel 114 in the membrane yarn filling area 110 of each partition 11 that is connected to the water distribution port 111 (see Figure 4 ), the water distribution channel area 112 opens the water distribution channel of each partition 11 to a certain extent, thereby improving the water distribution and pressure distribution state of the hollow fiber column membrane assembly 300. Figure 4 The arrows schematically show the raw water entering the inner cavity 310 of the pressure-resistant membrane shell of the hollow fiber column membrane module 300 (see Figure 2 ) The direction of water flow inside and behind.

[0104] In this embodiment, if Figure 5 and Figure 6 As shown, and reference Figures 1 to 4 as well as Figures 7 to 14 The raw water first enters the end cap 305 at the lower end through the water inlet 302 of the hollow fiber column membrane module 300, and then passes through Figure 5The water outlet 111 and the water outlet 113 and their corresponding water distribution channels enter the inner cavity 310 of the pressure-resistant membrane shell, and then are filtered by each of the six groups of membrane wires 307 in this embodiment, and the water is produced from Figure 6 The upper end of the opening of each membrane filament is shown (as Figure 5 As shown, the lower end of each membrane filament is closed) and enters the end cap 305 at the upper end, and finally flows out through the water outlet 304, while the concentrated water flows out through the upper end of the central tube 309 and the concentrated water outlet 306.

[0105] refer to Figures 1 to 14 Compared with the prior art where the water distribution partition frame is only a fixed frame and the membrane fiber filling amount of each partition is fixed, the present invention has an adjustable partition water distribution partition frame 100 composed of two parts, a fixed part and a movable part, so that each fixed partition 11 of the fixed frame 1 can be flexibly divided into two parts by the inner movable frame 3, so that the membrane fiber filling amount of each partition 11 can be flexibly adjusted, and while the membrane fiber filling amount is adjusted, the water distribution channel can be opened to different degrees accordingly (the smaller the membrane fiber filling amount of each partition, the greater the degree of opening of the water distribution channel), thereby meeting some personalized needs based on cost and water quality considerations in the market.

[0106] Specifically, in the present invention, each partition 11 is in the state of maximum membrane yarn loading (see Figure 12 ) to adjust to the minimum membrane filament loading (see Figure 9 ) state, the membrane filament loading amount decreases; correspondingly, as the membrane filament loading amount decreases, the interval between the two groups of membrane filaments 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.

[0107] That is to say, through the adjustable partitioned water distribution partition frame 100 of the present invention, it is possible to 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 use needs from the membrane component manufacturer according to their actual use needs (such as water production and water quality), or users can choose a cost-effective product model according to their actual use needs to maximize the value of their products.

[0108] In addition, it should be noted that although Figures 1 to 14 In the example of the adjustable partition water distribution partition frame 100 in the embodiment shown, the number of each group of inner partition elements 32 is greater than the number of each group of outer partition elements 12, but Figure 15 and Figure 16In the variation of the adjustable partition water distribution rack 100 shown, the number of each group of outer partitions 12 may be greater than the number of each group of inner partitions 32. Figure 15 and Figure 16 As shown, in this variation, a mounting ring 14 is provided on the fixing frame 1 , which is located at the top of the fixing frame 1 and connects the free ends of the uppermost outer partition members 12 of each group of outer partition members 12 .

[0109] It should also be noted that, in the above embodiment, Figure 17 As shown, each membrane fiber distribution rack 200 includes a first distribution rack 211 and a second distribution rack 222. The first distribution rack 211 includes a first tube 231 and six first partitioning members 241. The six first partitioning members 241 extend radially outward from the first tube 231 and are evenly distributed along the circumference of the first tube 231 to form the aforementioned six distribution zones 201. The second distribution rack 222 includes a second tube 232 and six second partitioning members 242. The six second partitioning members 242 extend radially outward from the second tube 232 and are evenly distributed along the circumference of the second tube 232. The first tube 231 is provided with three groups of positioning holes 251 (the number of groups may also be changed in other embodiments), each group of positioning holes 251 includes four positioning holes 251; the second tube 232 is provided with three groups of positioning posts 252, each group of positioning posts 252 includes one positioning post 252. The positioning post 252 can engage with any of the four positioning holes 251, thereby enabling the second distribution rack 222 to be adjusted relative to the first distribution rack 211. This corresponds to the four adjustable positions / states of the movable rack 3 relative to the fixed rack 1 in the aforementioned embodiment: minimum, low, high, and maximum membrane filament loading. In other words, in this embodiment, the angle between two adjacent positioning holes in each group of positioning holes 251 on the first tube 231 is 10°.

[0110] Figures 18 to 20 for Figures 1 to 14 The schematic structure of another variant of the adjustable partition water distribution partition frame 100 is shown. Figures 18 to 20 As shown, in this variation, the adjustable partitioned water distribution partition frame 100 includes a fixed frame 1 and a movable frame 5, the movable frame 5 being radially movably mounted on the fixed frame 1, wherein the fixed frame 1 includes a fixed pipe body 10 and a plurality of groups of outer partition members 12 that divide the peripheral area of ​​the fixed pipe body 10 into a plurality of partitions 11, and the movable frame 5 includes a plurality of groups of inner partition members 52 (for clarity, Figure 18 and Figure 20Only one group of inner partitions 52 is shown), each group of inner partitions 52 is arranged to be radially movably mounted on two adjacent groups of outer partitions 12 of the fixed frame 1 between two adjacent groups of outer partitions 12, so that each partition 11 can be switched between the minimum membrane filament filling state and the maximum membrane filament filling state.

[0111] like Figure 20 As shown, in this specific embodiment, each group of inner partition members 52 includes two radially spaced, circumferentially retractable, arc-shaped inner partition sleeves 520, and when the interval between the two inner partition sleeves 520 is the smallest, that is, when the cross-sectional area of ​​the space between the two inner partition sleeves 520 is the smallest, the partition 11 is in a state of minimum membrane filament loading, that is, the amount of membrane filaments loaded in the interval between the two inner partition sleeves 520 is the smallest; when the interval between the two inner partition sleeves 520 is the largest, that is, when the cross-sectional area of ​​the space between the two inner partition sleeves 520 is the largest, the partition 11 is in a state of maximum membrane filament loading, that is, the amount of membrane filaments loaded in the interval between the two inner partition sleeves 520 is the largest. It should be understood that in Figure 20 In the set of inner partition members 52 shown, the two inner partition sleeves 520 can be set to have different sizes, one large and one small, because of their different radial positions in the partition 11.

[0112] like Figure 20 As shown, in this embodiment, the inner partition sleeve 520 includes an inner partition substrate 521 and an inner partition pull-out plate 523, wherein the inner partition substrate 521 has a accommodating cavity 524 with a side opening 522, and the inner partition pull-out plate 523 is suitable for being installed in the accommodating cavity 524 so as to be circumferentially pulled out or pushed in through the side opening 522.

[0113] like Figure 20 As shown in FIG. 1 , in this embodiment, the inner partition base plate 521 and the inner partition pull plate 523 are provided with limit buckles 525 at their respective outer ends away from each other. Figure 19 As shown, each set of outer partition members 12 includes a pair of outer partition plates 120 arranged in parallel and spaced apart. Each outer partition plate 120 is provided with a radial adjustment slot 123 and a plurality of axial positioning slots 125 connected to the radial adjustment slot 123. Figure 18 As shown, and reference Figure 19 and Figure 20 The inner partition sleeve 520 is suitable for overlapping the corresponding axial positioning grooves 125 on the two outer partition plates 120 facing each other of the two adjacent groups of outer partition components 12 through the limiting buckle 525, and can be radially moved in the radial adjustment groove 123 by the limiting buckle 525, so as to adjust the radial position of the inner partition sleeve 520.

[0114] like Figure 20As shown, in this embodiment, the inner partition base plate 521 and the inner partition pull plate 523 are preferably provided with a pair of axially aligned limit buckles 525 at their respective outer ends away from each other; accordingly, as shown in FIG. Figure 19 As shown, in this embodiment, two radial adjustment slots 123 are provided on each outer partition plate 120 corresponding to the pair of limit buckles 525, and a plurality of axial positioning slots 125 connected thereto are provided on each outer partition plate 120 corresponding to each radial adjustment slot 123.

[0115] For example Figure 18 As shown, and reference Figure 19 and Figure 20 When the limiting buckle 525 of the radially outer inner partition sleeve 520 is overlapped in the radially outermost axial positioning groove 125 of the outer partition plate 120, and when the limiting buckle 525 of the radially inner inner partition sleeve 520 is overlapped in the radially innermost axial positioning groove 125 of the outer partition plate 120, the interval between the two inner partition sleeves 520 is the largest, and the partition 11 is in a state suitable for loading the maximum amount of membrane filaments, that is, in a state of maximum membrane filament loading. In this state, the radial inner side of the radially inner inner partition sleeve 520 of each partition 11 can be used for water distribution, as a supplement to the water distribution in the membrane filament loading area between the two inner partition sleeves 520 of each partition 11, so that the water distribution channel is opened to a certain extent, thereby improving the water distribution and pressure distribution state of the membrane assembly;

[0116] When it is necessary to adjust the membrane filament filling state, that is, to adjust it from the maximum membrane filament filling state to the minimum membrane filament filling state, you can only adjust the position of the inner partition sleeve 520 that is radially inside. The specific operation is to lift the inner partition sleeve 520 and move the limit buckle 525 out of the axial positioning groove 125 and into the radial adjustment groove 123. Then you can slide along the radial adjustment groove 123 to change the position of the inner partition sleeve 520, and then change the area of ​​partition 11 used to fill the membrane filament.

[0117] When the interval between the inner and outer inner partition sleeves 520 is the smallest, for example, when their limit buckles 525 overlap in the two adjacent axial positioning grooves 125 of the outer partition plate 120, or when they overlap in the two relatively adjacent axial positioning grooves 125 of the outer partition plate 120 that are only separated by one axial positioning groove 125, the interval area between the two inner partition sleeves 520 is the minimum membrane wire filling area, and membrane wires are filled in this area, and each partition 11 is in the minimum membrane wire filling state; in this state, the radial inner side of the inner partition sleeve 520 that is radially inside can be used for water distribution, as a supplement to the water distribution in the membrane wire filling area between the two inner partition sleeves 520 of each partition 11, so that the water distribution channel is opened to the maximum extent, thereby considerably improving the water distribution and pressure distribution state of the membrane assembly.

[0118] Although the above description describes that the membrane filament loading area can be changed by shifting (radially moving or circumferentially expanding) the position of the inner partition sleeve 520, it should be understood that the membrane filament loading area can also be changed by shifting the position of the radially outer inner partition sleeve 520, or by simultaneously shifting the positions of both radially inner and outer inner partition sleeves 520. It should be understood that each partition can independently distribute water outside the membrane filament loading area, thereby opening the water distribution channel to varying degrees (the smaller the membrane filament loading amount in each partition, the greater the degree of opening of the water distribution channel), thereby improving the water distribution and pressure distribution of the membrane assembly.

[0119] like Figure 19 As shown, in the adjustable partition water distribution partition frame 100 of this variation, a mounting ring 14 is provided on the fixing frame 1. The mounting ring 14 is located at the top of the fixing frame 1 and is connected to the top free ends of each group of outer partition members 12. When the entire adjustable partition water distribution partition frame 100 is installed Figures 1 to 4 The screw barrel 303 of the hollow fiber column membrane module 300 shown plays a supporting role.

[0120] For example Figures 18 to 20 As shown, in this embodiment, a plurality of glue holes 529 are provided on the inner partition 52 , and a plurality of glue holes 129 are also provided on the outer partition 12 .

[0121] In addition, although Figures 18 to 20 Although not shown, in this embodiment, each edge of the outer partition member 12 and the inner partition member 52 (ie, the outer partition plate 120 and the inner partition sleeve plate 520) is provided with a circular chamfer to prevent the membrane wire from being scratched when it comes into contact with it.

[0122] In reference Figure 18 As shown, in Figure 19 and Figure 20In a variation of the embodiment, except that each group of inner partition members 52 includes only one inner partition plate 520, that is, each group of inner partition members 52 is constituted as a circumferentially retractable, arc-shaped inner partition plate 520, other structures and Figures 18 to 20 The embodiments shown are all consistent. In this variation, when the inner partitioning sleeve 520 is radially close to the fixed tube 10 of the fixed frame 1, the partition 11 is at the minimum membrane filament loading state; when the inner partitioning sleeve 520 is radially away from the fixed tube 10, the partition is at the maximum membrane filament loading state. In other words, in this alternative embodiment, when the limit buckle 525 overlaps the radially innermost axial positioning groove 125, the partition 11 is at the minimum membrane filament loading state; when the limit buckle 525 overlaps the radially outermost axial positioning groove 125, the partition 11 is at the maximum membrane filament loading state.

[0123] refer to Figure 3 As shown, for Figures 18 to 20 In the example of the adjustable partition water distribution frame 100 shown, it is sufficient to provide multiple rows of first axial grooves 312 on the inner wall of the screw barrel 303 to correspond to the multiple sets of outer partition members 12. Figures 18 to 20 The structure of the adjustable partition water distribution partition frame 100 is similar to Figures 1 to 16 The structure of the adjustable partition water distribution partition frame 100 shown in FIG is different, and there is no need to set a specific Figures 1 to 16 The second axial groove 332 is provided on the adjustable partitioned water distribution partition frame 100.

[0124] 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. A hollow fiber column membrane module, characterized in that include: A pressure-resistant membrane shell is provided with a water inlet, a water outlet and a concentrated water outlet; A pair of adjustable partition water distribution frames, which are installed at both ends of the pressure-resistant membrane shell; A central tube is located in the pressure-resistant membrane shell and has two ends connected to a corresponding adjustable partition water distribution frame. The central tube is provided with a plurality of through holes; Multiple groups of membrane filaments are arranged around the central tube and are respectively loaded on corresponding adjustable partitioned water distribution partition frames at both ends, and are centrifugally cast with resin glue to form end seals on both ends of the pressure-resistant membrane shell. Each group of membrane filaments includes a plurality of membrane filaments. The adjustable partitioned water distribution frame includes a fixed frame and a movable frame. The fixed frame is provided with a plurality of partitions for loading a plurality of groups of membrane filaments in a one-to-one correspondence. The movable frame is configured to be rotatably or radially movable mounted on the fixed frame before centrifugal casting 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 fixed frame includes a fixed tube body and multiple groups of external partitioning components that divide the peripheral area of ​​the fixed tube body into the multiple partitions. The movable frame includes multiple groups of internal partitioning components arranged corresponding to the multiple groups of external partitioning components, wherein each group of internal partitioning components is arranged to be rotatably or radially movably installed on the fixed frame within the partition between two adjacent groups of external partitioning components.

2. The hollow fiber column membrane module according to claim 1, wherein: 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. The movable frame includes a movable tube body coaxially located within the fixed tube body. 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. 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 inner partitions can radially penetrate it and be rotatably mounted on the fixed tube body.

3. The hollow fiber column membrane module according to claim 2, wherein: 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 hollow fiber column membrane module according to claim 3, wherein: 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 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 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 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 hollow fiber column membrane module according to claim 7, wherein: The N number is three, and two adjacent limiting grooves form an angle of 10°.

9. The hollow fiber column membrane module according to any one of claims 1 to 7, 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.

10. The hollow fiber column membrane module according to claim 1, wherein: Each group of the inner partitions of the movable frame is arranged to be radially movably mounted on the two adjacent groups of the outer partitions in the partition between the two adjacent groups of the outer partitions.

11. The hollow fiber column membrane module according to claim 10, wherein: Each group of the inner partition components is constructed as a circumferentially retractable, arc-shaped inner partition sleeve. When the inner partition sleeve is radially close to the fixed tube body, the partition is in the minimum membrane wire filling state; when the inner partition sleeve is radially away from the fixed tube body, the partition is in the maximum membrane wire filling state.

12. The hollow fiber column membrane module according to claim 10, wherein: Each group of the inner partition components includes two radially spaced, circumferentially retractable, arc-shaped inner partition sleeves, and when the interval between the two inner partition sleeves is the smallest, the partition is in the minimum membrane wire filling state; when the interval between the two inner partition sleeves is the largest, the partition is in the maximum membrane wire filling state.

13. The hollow fiber column membrane module according to claim 11 or 12, characterized in that: The inner partition sleeve comprises an inner partition base plate and an inner partition pull-out plate, wherein the inner partition base plate has a receiving cavity with a side opening, and the inner partition pull-out plate is suitable for being installed in the receiving cavity so as to be circumferentially withdrawn or pushed through the side opening.

14. The hollow fiber column membrane module according to claim 13, wherein: The inner partition base plate and the inner partition pull-out plate are provided with limiting buckles at their respective outer ends away from each other; each group of the outer partition components includes a pair of outer partition plates arranged in parallel and spaced apart, and each outer partition plate is provided with a radial adjustment slide groove and a plurality of axial positioning grooves connected to the radial adjustment slide groove; wherein, the inner partition sleeve is suitable for being overlapped in the corresponding axial positioning grooves of the two outer partition plates facing each other of the two adjacent groups of the outer partition components through the limiting buckles, and can adjust the radial position of the inner partition sleeve by radial movement of the limiting buckles in the radial adjustment slide groove.

15. The hollow fiber column membrane module according to claim 14, wherein: The inner partition base plate and the inner partition pull-out plate are provided with a pair of axially aligned limit buckles at their respective outer ends away from each other; each outer partition plate is provided with two radial adjustment grooves corresponding to the pair of limit buckles, and each outer partition plate is provided with multiple axial positioning grooves connected to each radial adjustment groove.

16. The hollow fiber column membrane module according to any one of claims 1 to 8 and 10 to 12, characterized in that: The pressure-resistant membrane shell includes a membrane tube, a pair of screw barrels and a pair of end covers, wherein the membrane tube is coaxially installed with the central tube and is connected one-to-one with the pair of screw barrels at both ends thereof, and the screw barrels and the end covers are connected together by a stainless steel clamp, and wherein an annular support boss is provided on the inner wall of the screw barrel, and the adjustable partitioned water distribution partition frame is provided with a mounting ring located on the fixed frame or the movable frame, and the mounting ring is overlapped on the annular support boss.

17. The hollow fiber column membrane module according to claim 16, wherein: It also includes a plurality of membrane wire distribution racks, which are installed in the membrane tube at axial intervals and are provided with a central hole for the central tube to pass through and a plurality of dispersion areas surrounding the central hole. The plurality of dispersion areas are arranged in a one-to-one correspondence with the plurality of partitions.

18. The hollow fiber column membrane module according to claim 17, wherein: Each of the membrane fiber distribution racks includes a first distribution rack and a second distribution rack, wherein the first distribution rack includes a first tube body and a plurality of first partitioning components, the plurality of first partitioning components extend radially outward from the first tube body and are evenly distributed along the circumference of the first tube body to form the plurality of dispersion areas; the second distribution rack includes a second tube body and a plurality of second partitioning components, the plurality of second partitioning components extend radially outward from the second tube body and are evenly distributed along the circumference of the second tube body; a plurality of groups of positioning holes are provided on the first tube body, each group of positioning holes includes a plurality of positioning holes, and a plurality of groups of positioning columns corresponding to the number of the plurality of groups of positioning holes are provided on the second tube body, each group of positioning columns includes a positioning column; the one positioning column can be engaged with any one of the plurality of positioning holes, so that the position of the second distribution rack can be adjusted relative to the first distribution rack to correspond to the position of the movable rack relative to the fixed rack.

19. The hollow fiber column membrane module according to claim 16 when referring to any one of claims 2 to 8, characterized in that: The inner wall of the screw barrel is also provided with multiple rows of first axial grooves to correspond to the multiple groups of external partitions, and the inner wall of the screw barrel is also provided with multiple rows of second axial grooves in the area corresponding to each partition to engage the multiple groups of internal partitions under each membrane wire filling amount state between the minimum membrane wire filling amount state and the maximum membrane wire filling amount state.

20. The hollow fiber column membrane module according to claim 16 when referring to any one of claims 10 to 12, characterized in that: The inner wall of the screw barrel is also provided with multiple rows of first axial grooves to correspond to and engage the multiple groups of outer partitions.

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