Adjustable partition water distribution separation rack for hollow fiber column membrane module

Abstract

The application relates to an adjustable partition water distribution separation frame for a hollow fiber column type membrane module assembly, comprising a fixed frame and a movable frame radially movably installed on the fixed frame, the fixed frame comprising a tube body and a plurality of sets of outer partition pieces separating the peripheral area of the tube body into a plurality of partitions, and the movable frame comprising a plurality of sets of inner partition pieces corresponding to the plurality of sets of outer partition pieces, each set of inner partition pieces being arranged to be radially movably installed on the adjacent two sets of outer partition pieces of the fixed frame, so that each partition is converted between a minimum membrane filament loading state and a maximum membrane filament loading state. The application first partitions through the outer partition pieces, and then secondly partitions the first partition through the movement of the inner partition pieces on the fixed frame, so as to adjust the membrane filament loading area of the first partition, thereby matching the required membrane filament loading amount.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water distribution partition frame used on hollow fiber column membrane module product, in particular to a hollow fiber column membrane module adjustable partition water distribution partition frame. BACKGROUND

[0002] In the field of hollow fiber column membrane module of external pressure type, the membrane filaments are fixed on the water distribution partition frame at both ends of the hollow fiber column membrane module, and then the resin is used to seal the ends to form resin end faces, so that raw water such as industrial wastewater or sewage enters the hollow fiber column membrane module through one end of the membrane shell assembly and is filtered by the membrane filaments, and the concentrated water is discharged from the concentrated water outlet of the hollow fiber column membrane module, and the permeate liquid filtered by the membrane filaments, i.e. product water, flows out from the product water outlet.

[0003] The function of the water distribution partition frame is to increase the strength of the resin, increase the strength of the resin end face under the impact of water flow, and also play a certain water distribution role. In the prior art, the water distribution partition frame usually divides the peripheral area into multiple regions, i.e. multiple partitions, and fills the membrane filaments 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 the difference in water quality and the different market demand for the size of product water, the hollow fiber column membrane module needs to be changed in terms of the structure of the membrane filaments and the water flow distribution channel to meet the market demand. However, for the existing water distribution partition frame, 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 amount of membrane filaments filled at will, i.e. when the amount of membrane filaments filled in each region is reduced, the membrane filaments cannot be fixed in the spiral cylinder of the hollow fiber column membrane module due to the too small proportion of the membrane filaments in the spiral cylinder during centrifugal casting, and the membrane filaments will move randomly under the centrifugal force during centrifugal casting, so that they cannot be evenly distributed in the spiral cylinder, or even directly thrown into the middle part of the spiral cylinder, i.e. separated from the water distribution partition frame, thereby affecting the yield of centrifugal casting or causing the casting to fail. SUMMARY

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

[0005] To this end, the application provides an adjustable partition water distribution separation frame for a hollow fiber column membrane module, which comprises a fixed frame and a movable frame radially movably mounted on the fixed frame, wherein the fixed frame comprises a tube body and a plurality of sets of outer partition members separating the peripheral area of the tube body into a plurality of partitions, and the movable frame comprises a plurality of sets of inner partition members corresponding to the plurality of sets of outer partition members, each set of inner partition members being arranged to be radially movably mounted on the adjacent two sets of outer partition members of the fixed frame, so that each partition is converted between a minimum membrane filament loading state and a maximum membrane filament loading state.

[0006] In the application, the partitions are divided by the outer partition members (first division), and then the partitions are further divided / separated by the radial movement of the inner partition members on the fixed frame (second division), so that on the one hand, the membrane filament loading area of each partition can be adjusted to match the required membrane filament loading, and on the other hand, the resin pouring strength of the hollow fiber column membrane module can be further enhanced. That is, before centrifugal pouring (i.e. end sealing) is performed on both ends of the hollow fiber column membrane module, if it is necessary to adjust the membrane filament loading of each partition, the adjustment of the membrane filament loading area of each partition can be realized by rotating the movable frame to adjust the position of the inner partition member in each partition, so as to meet the requirement of membrane filament loading.

[0007] In one embodiment, each set of inner partition members is configured as an arc-shaped inner partition sleeve plate which can be circumferentially stretched and contracted, when the inner partition sleeve plate is radially close to the tube body, the partition is in the minimum membrane filament loading state; when the inner partition sleeve plate is radially away from the tube body, the partition is in the maximum membrane filament loading state.

[0008] Through the above structure, the adjustment of the membrane filament loading area size (i.e. the adjustment of the membrane filament loading size) can be realized by moving a single inner partition sleeve plate radially and simultaneously performing circumferential stretching and contraction operation on the inner partition sleeve plate, so as to meet the requirement of different water production.

[0009] In another embodiment, each set of inner partition members comprises two radially spaced arc-shaped inner partition sleeve plates which can be circumferentially stretched and contracted, and when the spacing between the two inner partition sleeve plates is the smallest, the partition is in the minimum membrane filament loading state; when the spacing between the two inner partition sleeve plates is the largest, the partition is in the maximum membrane filament loading state.

[0010] Through the above structure, the adjustment of the membrane filament loading area size can be realized by moving a single or two inner partition sleeve plates radially and simultaneously performing circumferential stretching and contraction operation on the inner partition sleeve plates.

[0011] Further, the inner partition sleeve plate 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 adapted to be circumferentially pulled out or pushed in the receiving cavity via the side opening.

[0012] By the above structure, the inner partition pull-out plate can pull out the part in the accommodating cavity of the inner partition substrate according to the length of the circumference, or push the part outside the inner partition substrate into the accommodating cavity according to the length of the circumference, so as to change the length of the circumference of the inner partition sleeve plate to exactly overlap on the two adjacent groups of outer partition members.

[0013] Further, the inner partition substrate and the inner partition pull-out plate are provided with limiting buckles at the respective outer ends away from each other; each group of outer partition members comprises a pair of parallel and spaced outer partition plates, and each outer partition plate is provided with a radial adjustment sliding groove and a plurality of axial positioning grooves communicated with the radial adjustment sliding groove; wherein the inner partition sleeve plate is adapted to overlap on the corresponding axial positioning grooves of the two outer partition plates of the adjacent two groups of outer partition members via the limiting buckles, and the radial position of the inner partition sleeve plate can be adjusted by the radial movement of the limiting buckles in the radial adjustment sliding groove.

[0014] By the above structure, when the position of the inner partition sleeve plate needs to be adjusted, the limiting buckles are moved out of the axial positioning grooves into the radial adjustment sliding groove, and then the inner partition sleeve plate can be slid along the radial adjustment sliding groove to change the position of the inner partition sleeve plate, and further change the area of the partition for loading the membrane filaments.

[0015] Further, the inner partition substrate and the inner partition pull-out plate are provided with a pair of limiting buckles axially aligned at the respective outer ends away from each other; each outer partition plate is provided with two radial adjustment sliding grooves corresponding to the pair of limiting buckles, and a plurality of axial positioning grooves corresponding to each radial adjustment sliding groove are provided on each outer partition plate.

[0016] By the above structure, the connection of the inner partition member and the outer partition member is more stable.

[0017] Further, a plurality of glue holes are provided on each inner partition sleeve plate and / or each outer partition member.

[0018] By the provision of the glue holes, the resin glue can fill the corners of the adjustable partition water distribution shelf.

[0019] Further, each edge of each outer partition member and each inner partition sleeve plate is provided with a circular arc chamfer.

[0020] By the above structure, the membrane filaments can be effectively prevented from being scratched when they are contacted.

[0021] The above aspects and other aspects of the present application will be more clearly illustrated by referring to the embodiments described below. BRIEF DESCRIPTION OF DRAWINGS

[0022] The structure of the present application and further objects and advantages thereof will be better understood from the following description taken in conjunction with the accompanying drawings, in which like reference numerals identify identical elements:

[0023] Figure 1 is a perspective structural schematic view of an adjustable partition water distribution partition frame for a hollow fiber column membrane module according to an embodiment of the present application;

[0024] Figure 2 is Figure 1 a perspective structural schematic view of a fixed frame of the adjustable partition water distribution partition frame for the hollow fiber column membrane module shown in

[0025] Figure 3 is Figure 1 a perspective structural schematic view of a movable frame of the adjustable partition water distribution partition frame for the hollow fiber column membrane module shown in DETAILED DESCRIPTION

[0026] The specific embodiments of the present application will be described below with reference to the accompanying drawings.

[0027] First of all, it needs to be explained that the "minimum membrane filament loading state" of each partition referred to herein means that the membrane filament loading in each partition is in a minimum amount, or in other words, the membrane area in each partition is in a minimum membrane area; the "maximum membrane filament loading state" of each partition referred to herein means that the membrane filament loading in each partition is in a maximum amount, or in other words, the membrane area in each partition is in a maximum membrane area.

[0028] As Figures 1 to 3 shown, the adjustable partition water distribution partition frame 100 for a hollow fiber column membrane module according to an embodiment of the present application 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 tube body 10 and a plurality of sets of outer partition members 12 separating the peripheral region of the tube body 10 into a plurality of partitions 11, and the movable frame 5 includes a plurality of sets of inner partition members 52 (only one set of inner partition members 52 is shown for clarity, Figure 1 and Figure 3 each set of inner partition members 52 being arranged to be radially movably mounted on the adjacent two sets of outer partition members 12 of the fixed frame 1 between the adjacent two sets of outer partition members 12, so as to enable each partition 11 to be switched between the minimum membrane filament loading state and the maximum membrane filament loading state.

[0029] As Figure 3As shown, in this specific embodiment, each set of inner partition components 52 includes two radially spaced, circumferentially expandable, arc-shaped inner partition sleeves 520. When the interval between these two inner partition sleeves 520 is minimal, i.e., when the cross-sectional area of ​​the space between these two inner partition sleeves 520 is minimal, partition 11 is in the minimum membrane fiber loading state, i.e., the membrane fiber loading within the interval between the two inner partition sleeves 520 is minimal; when the interval between these two inner partition sleeves 520 is maximum, i.e., when the cross-sectional area of ​​the space between these two inner partition sleeves 520 is maximum, partition 11 is in the maximum membrane fiber loading state, i.e., the membrane fiber loading within the interval between the two inner partition sleeves 520 is maximum. It should be understood that in Figure 3 In the set of inner partition components 52 shown, the two inner partition sleeves 520 can be set to be one large and one small because they are located in different radial positions in the partition 11.

[0030] like Figure 3 As shown, in this embodiment, the inner partition sleeve 520 includes an inner partition base plate 521 and an inner partition pull plate 523. The inner partition base plate 521 has a receiving cavity 524 with a side opening 522, and the inner partition pull plate 523 is adapted to be circumferentially pulled out or pushed into the receiving cavity 524 through the side opening 522.

[0031] like Figure 3 As shown, in this embodiment, the inner partition substrate 521 and the inner partition pull-out plate 523 are provided with limit latches 525 at their respective outer ends, away from each other. Figure 2 As shown, each set of outer partition components 12 includes a pair of parallel and spaced outer partition plates 120. Each outer partition plate 120 is provided with a radial adjustment groove 123 and multiple axial positioning grooves 125 communicating with the radial adjustment groove 123. Figure 1 As shown, and refer to Figure 2 and Figure 3 The inner partition sleeve 520 is adapted to overlap with the corresponding axial positioning grooves 125 on the two facing outer partition plates 120 of the two adjacent sets of outer partition members 12 via the limiting buckle 525, and can move radially in the radial adjustment groove 123 by means of the limiting buckle 525, thereby adjusting the radial position of the inner partition sleeve 520.

[0032] like Figure 3 As shown, in this embodiment, the inner partition substrate 521 and the inner partition pull-out plate 523 are preferably provided with a pair of axially aligned limiting buckles 525 at their respective outer ends away from each other; correspondingly, as Figure 2As shown, two radial adjustment grooves 123 are provided on each outer partition plate 120 corresponding to the pair of limiting buckles 525, and a plurality of axial positioning grooves 125 are provided on each outer partition plate 120 corresponding to each radial adjustment groove 123.

[0033] For example Figure 1 As shown, and referring to Figure 2 and Figure 3 When the limiting buckle 525 of the inner partition sleeve plate 520 radially outside is lapped in the outermost axial positioning groove 125 of the outer partition plate 120, and when the limiting buckle 525 of the inner partition sleeve plate 520 radially inside is lapped in the innermost axial positioning groove 125 of the outer partition plate 120, the spacing between the two inner partition sleeve plates 520 is the largest, and the partition 11 is in a state suitable for filling the maximum amount of membrane wire, i.e. in a maximum membrane wire filling state, and the area radially inside the inner partition sleeve plate 520 radially inside each partition 11 can be used for water distribution as a supplement to water distribution in the membrane wire filling area between the two inner partition sleeve plates 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 module.

[0034] When it is necessary to adjust the water distribution state, i.e. from the maximum membrane wire filling state to the minimum membrane wire filling state, the position of the inner partition sleeve plate 520 radially inside can be adjusted, and the specific operation is to lift the inner partition sleeve plate 520, move the limiting buckle 525 out of the axial positioning groove 125 into the radial adjustment groove 123, and then slide along the radial adjustment groove 123 to change the position of the inner partition sleeve plate 520 and further change the area for filling membrane wire of the partition 11.

[0035] When the spacing between the two inner partition sleeve plates 520 is the smallest, for example, their limiting buckles 525 are lapped in two adjacent axial positioning grooves 125 of the outer partition plate 120, or in two relatively adjacent axial positioning grooves 125 of the outer partition plate 120 with only one axial positioning groove 125 in between, the spacing area between the two inner partition sleeve plates 520 is the minimum membrane wire filling area, and the membrane wire is filled in this area, and each partition 11 is in a minimum membrane wire filling state; in this state, the area radially inside the inner partition sleeve plate 520 radially inside can be used for water distribution as a supplement to water distribution in the membrane wire filling area between the two inner partition sleeve plates 520 of each partition 11, so that the water distribution channel is opened to the maximum extent, thereby significantly improving the water distribution and pressure distribution state of the membrane module.

[0036] Although the above describes that the membrane filament loading area can be changed by moving the position of the inner partition sleeve plate 520 inside, it should be understood that the membrane filament loading area can also be changed by moving the position of the inner partition sleeve plate 520 outside in the radial direction, or by moving the positions of the inner partition sleeve plates 520 inside and outside in the radial direction at the same time. It should be understood that each partition can be separately watered outside the membrane filament loading area, so as to open the water distribution channel to different degrees (the smaller the membrane filament loading amount of each partition, the greater the opening degree of the water distribution channel), and improve the water distribution and pressure distribution state of the membrane module.

[0037] It should be noted that, in the present embodiment, as shown in Figure 2 , the mounting ring 14 is arranged on the fixed frame 1 and is located at the top of the fixed frame 1 and connected to the top free end of each group of outer partition members 12, which serves as a support when the entire hollow fiber column type membrane module is installed on the screw cylinder (not shown in the figure) of the hollow fiber column type membrane module.

[0038] Further, as shown in Figures 1 to 3 , in the present embodiment, the inner partition member 52 is provided with a plurality of glue through holes 529, and the outer partition member 12 is also provided with a plurality of glue through holes 129.

[0039] In addition, although Figures 1 to 3 is not shown in the present embodiment, each edge of the outer partition member 12 and the inner partition member 52 (i.e. the outer partition plate 120 and the inner partition sleeve plate 520) is provided with a circular arc chamfer to avoid scratching the membrane filament when it is in contact with it.

[0040] Referring to Figure 1 , in another embodiment, in addition to each group of inner partition members 52 only including one inner partition sleeve plate 520, i.e. each group of inner partition members 52 is composed of one circumferentially stretchable and arc-shaped inner partition sleeve plate 520, the other structures and Figures 1 to 3 embodiments shown in the description are consistent. In this other embodiment, when the inner partition sleeve plate 520 is close to the pipe body 10 of the fixed frame 1 in the radial direction, the partition 11 is in the minimum membrane filament loading state; when the inner partition sleeve plate 520 is away from the pipe body 10 in the radial direction, the partition is in the maximum membrane filament loading state. That is, in this other embodiment, when the limiting buckle 525 is overlapped in the radially innermost axial positioning groove 125, the partition 11 is in the minimum membrane filament loading state; when the limiting buckle 525 is overlapped in the radially outermost axial positioning groove 125, the partition 11 is in the maximum membrane filament loading state.

[0041] Compared with the fixed frame and the fixed membrane filament filling amount of the water distribution partition frame in the prior art, the adjustable partition water distribution partition frame is composed of a fixed part and a movable part, so that each fixed partition of the fixed frame can be flexibly secondarily partitioned by the movable frame, so that the membrane filament filling amount of each partition can be flexibly adjusted, and the water distribution channel is opened to different degrees (the smaller the membrane filament filling amount of each partition is, the greater the opening degree of the water distribution channel is) when the membrane filament filling amount is adjusted, so as to meet some personalized needs in the market based on cost and water quality considerations.

[0042] Specifically, in the present application, the membrane filament filling amount of each partition decreases from the maximum membrane filament filling amount state to the adjusted minimum membrane filament filling amount state; accordingly, as the membrane filament filling amount decreases, the spacing between the membrane bundles increases, that is, the opening degree of the water distribution channel increases, and this adjustment process can adjust the water distribution and pressure of the membrane module, and accordingly, the membrane filament utilization rate can also be adjusted.

[0043] That is, through the adjustable partition water distribution partition frame of the present application, the membrane module manufacturer can provide the possibility of producing multiple product models for the same specification (i.e., the same membrane shell diameter) of the membrane module, so that the membrane filament filling amount, water distribution and pressure, and membrane filament utilization rate of different product models are different, so that the user can select and customize the product model that best meets the actual use requirements (such as water production and water quality) from the membrane module manufacturer, or the user can select a product model with high cost performance according to the actual use requirements, so as to maximize the product value.

[0044] The technical content and technical features of the present application have been disclosed above, however, it can be understood that under the spirit of the present application, i.e., the inventive idea, those skilled in the art can make various changes and improvements to the above structure, including the combination of the technical features disclosed or claimed herein, and other combinations that obviously include these features. These modifications and / or combinations all fall within the technical field to which the present application relates, and fall within the protection scope of the claims of the present application.

Claims

1. An adjustable partitioned water distribution frame for a hollow fiber column membrane module, characterized in that... The device includes a fixed frame and a movable frame that is radially movably mounted on the fixed frame. The fixed frame includes a tube body and multiple sets of outer partition members that divide the outer area of ​​the tube body into multiple partitions. The movable frame includes multiple sets of inner partition members that are corresponding to the multiple sets of outer partition members. Each set of inner partition members is configured to be radially movably mounted on two adjacent sets of outer partition members of the fixed frame within the partition between two adjacent sets of outer partition members, thereby allowing each partition to switch between a minimum membrane fiber loading state and a maximum membrane fiber loading state. A mounting ring is provided on the fixing frame, which is located at the top of the fixing frame and connects to the top free end of each group of outer partition components.

2. The adjustable partitioned water distribution frame for hollow fiber column membrane modules as described in claim 1, characterized in that, Each set of inner partition components constitutes a circumferentially expandable, arc-shaped inner partition sleeve. When the inner partition sleeve is radially close to the tube body, the partition is in the minimum membrane filament loading state; when the inner partition sleeve is radially away from the tube body, the partition is in the maximum membrane filament loading state.

3. The adjustable partitioned water distribution frame for hollow fiber column membrane modules as described in claim 1, characterized in that, Each set of inner partition components includes two radially spaced, circumferentially expandable, arc-shaped inner partition sleeves. When the interval between the two inner partition sleeves is at its minimum, the partition is in the minimum membrane filament loading state; when the interval between the two inner partition sleeves is at its maximum, the partition is in the maximum membrane filament loading state.

4. The adjustable partitioned water distribution frame for hollow fiber column membrane modules as described in claim 2 or 3, characterized in that, 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 adapted to be circumferentially pulled out or pushed into the receiving cavity through the side opening.

5. The adjustable partitioned water distribution frame for hollow fiber column membrane modules as described in claim 4, characterized in that, The inner partition base plate and the inner partition pull-out plate are provided with limit buckles at their respective outer ends away from each other; each set of outer partition components includes a pair of parallel and spaced outer partition plates, each outer partition plate is provided with a radial adjustment groove and a plurality of axial positioning grooves connected to the radial adjustment groove; wherein, the inner partition sleeve plate is adapted to overlap with the corresponding axial positioning grooves on the two facing outer partition plates of two adjacent sets of outer partition components via the limit buckles, and the radial position of the inner partition sleeve plate can be adjusted by the radial movement of the limit buckles in the radial adjustment grooves.

6. The adjustable partitioned water distribution frame for hollow fiber column membrane modules as described in claim 5, characterized in that, The inner partition base plate and the inner partition pull plate are provided with a pair of axially aligned limiting 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 limiting buckles, and each outer partition plate is provided with multiple axial positioning grooves corresponding to each radial adjustment groove.

7. The adjustable partitioned water distribution frame for hollow fiber column membrane modules as described in claim 2 or 3, characterized in that, Each of the inner partition sleeves and / or each of the outer partition components is provided with a plurality of glue-through holes.

8. The adjustable partitioned water distribution frame for hollow fiber column membrane modules as described in claim 2 or 3, characterized in that, Each edge of each inner partition sleeve and each outer partition component is provided with a rounded chamfer.

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