Electrodialysis separator and ion membrane installation aid

Abstract

The utility model provides an electrodialysis baffle and ion membrane installation auxiliary device belong to mechanical processing technical field, and outer positioning device dismounts fixedly arranged on first fixed plate, first fixed plate cooperation is provided with the baffle, and inner positioning device moves back and forth along the height direction of outer positioning device, and inner positioning device cooperation is provided with ion membrane, outer positioning device is used for positioning the baffle of length and width longer, and inner positioning device is used for positioning the ion membrane of length and width short, and wherein ion membrane includes anion membrane and cation membrane. The baffle and ion membrane are arranged between first fixed plate and second fixed plate.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, and more specifically, to an auxiliary device for installing electrodialysis separators and ion-exchange membranes. Background Technology

[0002] Electrodialysis is a physicochemical process in which ions migrate from one part of water to another using the selective permeability of ion exchange membranes under the influence of an applied direct current electric field. Reverse-polarity electrodialysis separators utilize an electrically driven membrane separation process within multiple compartments to achieve water desalination.

[0003] like Figure 1 and Figure 2 As shown, electrodialysis consists of main components such as diaphragms, ion exchange membranes, electrodes, and clamping devices. Ion exchange membranes selectively permeate ions of different charges. Cation membranes allow only cations to pass through, blocking anions; anion membranes allow only anions to pass through, blocking cations. Under the influence of an applied DC electric field, ions in the water migrate directionally. Because the reverse-polarity electro-driven membrane separator is composed of multiple compartments, cations and anions in the dilute compartments (compartments 2, 4, and 6) migrate to the adjacent concentrate compartments (compartments 1, 3, and 5), thus desalinating the brine.

[0004] To achieve dialysis, an electrodialysis unit requires a series of interconnected membranes: cation exchange membrane, separator, anion exchange membrane, separator, cation exchange membrane, and so on. A typical single unit requires approximately 300 anion exchange membranes, 300 cation exchange membranes, and 600 separators. The length and width of the cation and anion exchange membranes are the same, while their length and width are less than those of the separators. To increase the overall filtration efficiency of the electrodialysis unit without altering the performance of individual cation and anion exchange membranes, the centers of the cation and anion exchange membranes must be aligned with the center of the separators. This prevents some anions or cations from being blocked from filtration. However, during assembly, due to operator inexperience, carelessness, or the lack of proper alignment, the centers of the cation and anion exchange membranes often fail to align with the center of the separators. This results in cross-contamination between concentrated and dilute water, decreased desalination rate, membrane stack leakage, and over time, severe deformation and collapse of the membrane stack, ultimately rendering it unusable.

[0005] Therefore, there is an urgent need for an auxiliary device that can simultaneously position the cation exchange membrane, anion exchange membrane, and diaphragm in an electrodialysis unit. Utility Model Content

[0006] In view of this, the present invention proposes to use an external positioning device and an internal positioning device to position the separator and the ion membrane respectively.

[0007] The technical solution of this utility model is implemented as follows: an auxiliary device for installing an electrodialysis partition and an ion membrane includes a first fixing plate, an outer positioning device and an inner positioning device. The outer positioning device is detachably and fixedly mounted on the first fixing plate. The first fixing plate is equipped with a partition. The inner positioning device moves back and forth along the height direction of the outer positioning device. The inner positioning device is equipped with an ion membrane.

[0008] Based on the above technical solutions, preferably, the external positioning device includes a first external positioning plate and a second external positioning plate, the first external positioning plate and the second external positioning plate are vertically arranged on the first fixed plate, and the first external positioning plate and the second external positioning plate are arranged perpendicular to each other.

[0009] Based on the above technical solutions, preferably, the external positioning device further includes a third external positioning plate, the second external positioning plate and the third external positioning plate are disposed on the same side of the first external positioning plate, and the third external positioning plate and the first external positioning plate are disposed perpendicular to each other.

[0010] Based on the above technical solutions, preferably, the first outer positioning plate is provided with a through groove, and the second and third outer positioning plates are both provided with guide grooves.

[0011] Based on the above technical solutions, preferably, the inner positioning device includes a first inner positioning plate, a second inner positioning plate and a third inner positioning plate, wherein the second inner positioning plate and the third inner positioning plate are disposed on the same side of the first inner positioning plate.

[0012] Based on the above technical solutions, preferably, the second inner positioning plate and the third inner positioning plate are both set perpendicular to the first inner positioning plate.

[0013] Based on the above technical solutions, preferably, an operating rod is provided on the side of the first inner positioning plate away from the second inner positioning plate and the third inner positioning plate, and the operating rod passes through the through groove.

[0014] Based on the above technical solutions, preferably, a first guide post is provided on the side of the second inner positioning plate away from the third inner positioning plate. The first guide post is located at the end of the second inner positioning plate near the first fixed plate, and the first guide post is slidably disposed in the guide groove on the second outer positioning plate.

[0015] Based on the above technical solutions, preferably, a second guide post is provided on the side of the third inner positioning plate away from the second inner positioning plate. The second guide post is provided at the end of the third inner positioning plate near the first fixed plate, and the second guide post is slidably disposed in the guide groove on the third outer positioning plate.

[0016] Based on the above technical solutions, preferably, the first fixing plate is provided with a plurality of mounting holes, and the second outer positioning plate and the third outer positioning plate are provided with a plurality of mounting seats, wherein the mounting holes and mounting seats are configured to cooperate with each other.

[0017] The electrodialysis separator and ion-exchange membrane installation auxiliary device of this utility model have the following advantages over the prior art: The outer positioning device is used to position the separator, which is longer and wider, while the inner positioning device is used to position the ion exchange membrane, which is shorter and narrower. The ion exchange membrane includes anion exchange membranes and cation exchange membranes. The separator and the ion exchange membrane are positioned between the first fixed plate and the second fixed plate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the installation auxiliary device for electrodialysis separator and ion membrane of this utility model; Figure 2 This utility model Figure 1 The left view; Figure 3 This is a perspective view of the external positioning device of this utility model; Figure 4 This is a perspective view of the internal positioning device of this utility model; Figure 5 This is a left view of the electrodialysis device of this utility model. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1-5As shown, the electrodialysis separator and ion-exchange membrane installation auxiliary device includes a first fixing plate 31, an outer positioning device 1, and an inner positioning device 2. The outer positioning device 1 is detachably and fixedly mounted on the first fixing plate 31. The first fixing plate 31 is fitted with a separator 4. The inner positioning device 2 moves back and forth along the height direction of the outer positioning device 1. The inner positioning device 2 is fitted with an ion-exchange membrane 5. The outer positioning device 1 is used to position the separator 4, which has a longer length and width, while the inner positioning device 2 is used to position the ion-exchange membrane 5, which has a shorter length and width. The ion-exchange membrane 5 includes anion exchange membranes and cation exchange membranes. The separator 4 and the ion-exchange membrane 5 are disposed between the first fixing plate 31 and the second fixing plate 32.

[0022] The external positioning device 1 includes a first external positioning plate 11 and a second external positioning plate 12, which are vertically arranged on the first fixed plate 31 and perpendicular to each other. The perpendicular arrangement of the first external positioning plate 11 and the second external positioning plate 12 allows for the positioning of two sides of the partition 4. This enables precise positioning of the partition 4 on the first fixed plate 31.

[0023] The external positioning device 1 also includes a third external positioning plate 13. The second external positioning plate 12 and the third external positioning plate 13 are disposed on the same side of the first external positioning plate 11, and the third external positioning plate 13 and the first external positioning plate 11 are disposed perpendicular to each other.

[0024] The first fixing plate 31 is provided with a plurality of mounting holes 311, and the second outer positioning plate 12 and the third outer positioning plate 13 are provided with a plurality of mounting seats 6, wherein the mounting holes 311 and the mounting seats 6 are configured to cooperate. When positioning the partition 4 and the ion membrane 5, the outer positioning device 1 is first positioned on the first fixing plate 31. By utilizing the cooperation between the mounting seats 6 and the mounting holes 311 on the second outer positioning plate 12 and the third outer positioning plate 13, bolts are passed through the mounting seats 6 and the third outer positioning plate 13. Then, the outer positioning device 1 is positioned using bolts and nuts. At this time, the partition 4 can be accurately positioned on the first fixing plate 31.

[0025] The first outer positioning plate 11 is provided with a through groove 111, and the second outer positioning plate 12 and the third outer positioning plate 13 are both provided with guide grooves 112. The inner positioning device 2 includes a first inner positioning plate 21, a second inner positioning plate 22, and a third inner positioning plate 23, with the second inner positioning plate 22 and the third inner positioning plate 23 located on the same side of the first inner positioning plate 21. An operating rod 211 is provided on the side of the first inner positioning plate 21 away from the second inner positioning plate 22 and the third inner positioning plate 23, and the operating rod 211 passes through the through groove 111.

[0026] The operating lever 211 facilitates the lifting and lowering of the internal positioning device 2. After placing one partition 4, an ion membrane 5 is placed on the partition 4. Then, the internal positioning device 2 is raised by lifting the operating lever 211, and then the next partition 4 is placed. This process is repeated alternately until all partitions 4 and ion membranes 5 are stacked.

[0027] The second inner positioning plate 22 and the third inner positioning plate 23 are both arranged perpendicularly to the first inner positioning plate 21. The second inner positioning plate 22 and the third inner positioning plate 23 are arranged perpendicularly to the first inner positioning plate 21 in order to position the rectangular ion membrane 5.

[0028] A first guide post 221 is provided on the side of the second inner positioning plate 22 away from the third inner positioning plate 23. The first guide post 221 is located at the end of the second inner positioning plate 22 near the first fixed plate 31 and is slidably disposed within the guide groove 112 on the second outer positioning plate 12. A second guide post 231 is provided on the side of the third inner positioning plate 23 away from the second inner positioning plate 22. The second guide post 231 is located at the end of the third inner positioning plate 23 near the first fixed plate 31 and is slidably disposed within the guide groove 112 on the third outer positioning plate 13. The first guide post 221 and the second guide post 231 are slidably disposed within the guide groove 112 on the second outer positioning plate 12 and the guide groove 112 on the third outer positioning plate 13, respectively, in order to position the lifting inner positioning device 2 and prevent the position of the inner positioning device 2 projected onto the first fixed plate 31 from changing during the lifting process, which would affect the positioning of the ion membrane 5.

[0029] The first fixing plate 31 is provided with a plurality of mounting holes 311, and the second outer positioning plate 12 and the third outer positioning plate 13 are provided with a plurality of mounting seats 6, wherein the mounting holes 311 and the mounting seats 6 are configured to cooperate with each other.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for installing an electrodialysis separator and ion-exchange membrane, comprising a first fixing plate (31), characterized in that: It also includes an external positioning device (1) and an internal positioning device (2). The external positioning device (1) is detached and fixed on a first fixed plate (31). The first fixed plate (31) is equipped with a partition (4). The internal positioning device (2) moves back and forth along the height direction of the external positioning device (1). The internal positioning device (2) is equipped with an ion membrane (5).

2. The electrodialysis separator and ion-exchange membrane installation auxiliary device as described in claim 1, characterized in that: The external positioning device (1) includes a first external positioning plate (11) and a second external positioning plate (12). The first external positioning plate (11) and the second external positioning plate (12) are vertically arranged on the first fixed plate (31). The first external positioning plate (11) and the second external positioning plate (12) are arranged perpendicularly to each other.

3. The electrodialysis separator and ion-exchange membrane installation auxiliary device as described in claim 2, characterized in that: The external positioning device (1) further includes a third external positioning plate (13). The second external positioning plate (12) and the third external positioning plate (13) are located on the same side of the first external positioning plate (11). The third external positioning plate (13) and the first external positioning plate (11) are arranged perpendicular to each other.

4. The electrodialysis separator and ion-exchange membrane installation auxiliary device as described in claim 3, characterized in that: The first outer positioning plate (11) is provided with a through groove (111), and the second outer positioning plate (12) and the third outer positioning plate (13) are both provided with guide grooves (112).

5. The electrodialysis separator and ion-exchange membrane installation auxiliary device as described in claim 4, characterized in that: The inner positioning device (2) includes a first inner positioning plate (21), a second inner positioning plate (22) and a third inner positioning plate (23), wherein the second inner positioning plate (22) and the third inner positioning plate (23) are disposed on the same side of the first inner positioning plate (21).

6. The electrodialysis separator and ion-exchange membrane installation auxiliary device as described in claim 5, characterized in that: The second inner positioning plate (22) and the third inner positioning plate (23) are both set perpendicular to the first inner positioning plate (21).

7. The electrodialysis separator and ion-exchange membrane installation auxiliary device as described in claim 5, characterized in that: An operating lever (211) is provided on the side of the first inner positioning plate (21) away from the second inner positioning plate (22) and the third inner positioning plate (23), and the operating lever (211) passes through the through groove (111).

8. The electrodialysis separator and ion-exchange membrane installation auxiliary device as described in claim 5, characterized in that: A first guide post (221) is provided on the side of the second inner positioning plate (22) away from the third inner positioning plate (23). The first guide post (221) is located at one end of the second inner positioning plate (22) near the first fixed plate (31). The first guide post (221) is slidably disposed in the guide groove (112) on the second outer positioning plate (12).

9. The electrodialysis separator and ion-exchange membrane installation auxiliary device as described in claim 5, characterized in that: The third inner positioning plate (23) is provided with a second guide post (231) on the side away from the second inner positioning plate (22). The second guide post (231) is provided at one end of the third inner positioning plate (23) near the first fixed plate (31). The second guide post (231) is slidably disposed in the guide groove (112) on the third outer positioning plate (13).

10. The electrodialysis separator and ion-exchange membrane installation auxiliary device as described in claim 5, characterized in that: The first fixing plate (31) is provided with a plurality of mounting holes (311), and the second outer positioning plate (12) and the third outer positioning plate (13) are provided with a plurality of mounting seats (6), and the mounting holes (311) and the mounting seats (6) are configured to cooperate with each other.

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