Electrodialysis membrane module device

Abstract

The utility model discloses an electrodialysis membrane module device, which belongs to the field of electrodialysis and comprises an electrodialysis membrane component and a drainage base detachably arranged at the bottom of the electrodialysis membrane component, and the drainage base comprises a heightening part and a mounting part arranged at the top of the heightening part. The bottom end of the electrodialysis membrane assembly is placed at the top of the heightening part, the side wall of the electrodialysis membrane assembly is detachably connected with the mounting part, and a plurality of first drainage grooves are formed in the top of the heightening part in the length direction of the heightening part. According to the electrodialysis membrane module, the drainage base with a simple structure is detachably arranged at the bottom of the electrodialysis membrane module, so that the problem of rusting of the clamping iron plate can be solved, and the electrodialysis membrane module is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model belongs to the field of electrodialysis, and in particular relates to an electrodialysis membrane module. Background Art

[0002] Electrodialysis is a method of separating different solute particles by using the selective permeability of a semipermeable membrane. The phenomenon in which charged solute particles in a solution migrate through a membrane when dialysis is performed under the action of an electric field is called electrodialysis.

[0003] Components of existing electrodialysis equipment, such as partitions with uneven thickness or grooves on the surface, can easily lead to uneven arrangement of membrane stacks during assembly. During operation, local water leakage is prone to occur, which can cause the clamping iron plate to rust.

[0004] An electrodialysis device with a publication number of CN116081784A comprises a cathode clamping plate and an anode clamping plate, a cathode flow channel plate is arranged inside the cathode clamping plate, an anode flow channel plate is arranged inside the anode clamping plate, a partition structure is arranged inside the cathode clamping plate and the anode clamping plate, a first fresh water partition is arranged inside the cathode clamping plate and the anode clamping plate, the first fresh water partition is close to the positive electrode plate, a first cation exchange membrane is arranged on one side of the first fresh water partition, a second concentrated water partition is arranged on one side of the first cation exchange membrane, an anion exchange membrane is arranged on one side of the second concentrated water partition, a second fresh water partition is arranged on one side of the anion exchange membrane, and a second cation exchange membrane is arranged on one side of the second fresh water partition. The cathode clamping plate is connected to the base through a bearing, a water tray is arranged at the upper end of the base, a drain port is arranged at the bottom of the water tray, and the lower end of the anode clamping plate is fixedly connected to the base through a fixing pin. It realizes the collection and discharge of leaking water through complex structures such as bearings, bases, water trays, and fixing pins, and the disassembly and assembly are complicated. Therefore, there is an urgent need for a rust-proof electrodialysis membrane module with a simple structure. Utility Model Content

[0005] The purpose of the utility model is to provide an electrodialysis membrane module to overcome at least one of the above-mentioned defects in the prior art.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an electrodialysis membrane assembly, comprising an electrodialysis membrane assembly and a drainage base detachably arranged at the bottom of the electrodialysis membrane assembly, the drainage base comprising a raised portion and a mounting portion arranged at the top of the raised portion, the bottom end of the electrodialysis membrane assembly is placed on the top of the raised portion, the side wall of the electrodialysis membrane assembly is detachably connected to the mounting portion, and a plurality of first drainage grooves are provided on the top of the raised portion along its length direction.

[0008] Preferably, the electrodialysis membrane assembly is detachably connected to the mounting portion by screw locking, and the mounting portion includes lugs arranged at both ends of the raised portion, and the screws pass through the lugs and are threadedly connected to the electrodialysis membrane assembly, and there is a clearance space between the two lugs.

[0009] Preferably, both ends of the elevated portion have a first water guiding surface inclined outward.

[0010] Preferably, the elevated portions between adjacent first drainage grooves are each provided with a second drainage groove, and both the first drainage groove and the second drainage groove penetrate the elevated portions.

[0011] Preferably, the top of the second drainage groove has a second water guide surface inclined inwardly.

[0012] Preferably, the bottom of the second drainage groove has a third water guide surface which is inclined downward from an end close to the mounting portion to an end away from the mounting portion.

[0013] Preferably, each lug includes a plurality of through holes spaced apart along its length, and the screw passes through the through hole to be screwed to the electrodialysis membrane assembly.

[0014] Preferably, the base is made of PE, PP or PVC.

[0015] Preferably, the electrodialysis membrane assembly includes a membrane stack, an electrode unit, a clamping iron plate, a decorative plate, and an electrode junction box. The electrode units are arranged on the front and rear sides of the membrane stack, the outer side of the electrode unit is provided with a clamping iron plate, the outer side of the clamping iron plate is provided with a decorative plate, and the electrode junction box is fixed to the decorative plate and electrically connected to the electrode unit.

[0016] The beneficial effects of the utility model are:

[0017] 1. The drainage base with a simple structure can be detachably arranged at the bottom of the electrodialysis membrane assembly, which can solve the problem of rust on the clamping iron plate and is easy to disassemble and assemble.

[0018] 2. The electrodialysis membrane assembly is raised by the raising part, which provides sufficient space from the ground for the electrodialysis membrane assembly to ensure that the clamping iron plate will not be in contact with water for a long time; the first drainage trough is combined to drain water to prevent the clamping iron plate from rusting.

[0019] 3. The electrodialysis membrane assembly is pressed against the top of the raised portion under the force of gravity, and the electrodialysis membrane assembly is installed from the side wall in combination with the installation portion to ensure stable installation of the electrodialysis membrane assembly.

[0020] 4. The first water guide surface facilitates the discharge of water from the left and right ends of the elevated part.

[0021] 5. Through the cooperation of the first drainage trough and the second drainage trough, the drainage is more comprehensive and the drainage effect is better.

[0022] 6. The provision of the second water guide surface facilitates the water on the elevated portion to enter the second drainage ditch.

[0023] 7. The provision of the third water guide surface is more conducive to the discharge of water from the second drainage trough.

[0024] 9. The arrangement of several through holes distributed at intervals can adapt to electrodialysis membrane components of different specifications and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a main structural schematic diagram of the first embodiment of the utility model.

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the first embodiment of the utility model.

[0027] Figure 3 It is a schematic diagram of the top structure of the first embodiment of the utility model.

[0028] Figure 4 It is a left-side structural schematic diagram of the first embodiment of the utility model.

[0029] Figure 5 It is a three-dimensional structural schematic diagram of a drainage base according to a first embodiment of the utility model.

[0030] Figure 6 It is a schematic diagram of the main structure of the drainage base located at the rear side of the first embodiment of the utility model.

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the drainage base of the second embodiment of the utility model.

[0032] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of A.

[0033] Fig. 9 It is a schematic diagram of the main structure of the drainage base located at the rear side of the third embodiment of the utility model.

[0034] The markings in the accompanying drawings are: 1-electrodialysis membrane assembly, 2-drainage base, 21-raising portion, 22-installing portion, 211-first drainage groove, 3-screw, 221-lug, 222-make way space, 212-first water guide surface, 213-second drainage groove, 214-second water guide surface, 215-third water guide surface, 223-through hole, 11-membrane stack, 12-electrode unit, 13-clamping iron plate, 14-decorative plate, 15-electrode junction box. DETAILED DESCRIPTION

[0035] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0036] Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. In the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] Embodiment 1:

[0038] like Figures 1 to 6 As shown, an electrodialysis membrane assembly provided in this embodiment includes an electrodialysis membrane assembly 1 and a drainage base 2 detachably arranged at the bottom of the electrodialysis membrane assembly 1. The electrodialysis membrane assembly 1 includes a membrane stack 11, an electrode unit 12, a clamping iron plate 13, a decorative plate 14, and an electrode junction box 15. The electrode unit 12 is arranged on both the front and rear sides of the membrane stack 11, and the clamping iron plate 13 is arranged on the outside of the electrode unit 12. The decorative plate 14 is arranged on the outside of the clamping iron plate 13. The electrode junction box 15 is fixed to the decorative plate 14 and is electrically connected to the electrode unit 12. The drainage base 2 is installed on both the front and rear sides of the bottom of the electrodialysis membrane assembly 1 of this embodiment. The drainage base 2 includes a raised portion 21 and a mounting portion 22 arranged on the top of the raised portion 21. The bottom end of the electrodialysis membrane assembly 1 is placed on the top of the raised portion 21. The side wall of the electrodialysis membrane assembly 1 is detachably connected to the mounting portion 22. A plurality of first drainage grooves 211 are provided on the top of the raised portion 21 along its length. In this embodiment, a plurality of first drainage grooves 211 are spaced from left to right. By detachably providing the drainage base 2 at the bottom of the electrodialysis membrane assembly 1, the problem of rusting of the clamping iron plate 13 caused by long-term contact of the leaked water with the clamping iron plate 13 when the electrodialysis membrane assembly 1 is directly placed on the platform can be avoided. The electrodialysis membrane assembly 1 is raised by the raised portion 21, which provides sufficient space from the ground for the electrodialysis membrane assembly 1 to ensure that the clamping iron plate 13 will not be in contact with water for a long time. The first drainage grooves 211 are combined to drain water to avoid rusting of the clamping iron plate 13. The electrodialysis membrane assembly 1 is supported against the top of the raised portion 21 under the gravity factor, and is installed from the side wall of the electrodialysis membrane assembly 1 in combination with the installation portion 22, thereby ensuring the stable installation of the electrodialysis membrane assembly 1. The problem of rust on the clamping iron plate 13 can be solved by detachably setting the drainage base 2 with a simple structure at the bottom of the electrodialysis membrane assembly 1, which is convenient for disassembly and assembly.

[0039] The electrodialysis membrane assembly 1 is detachably connected to the mounting portion 22 by means of screws 3, and the mounting portion 22 includes lugs 221 arranged at both ends of the raised portion 21, and the screws 3 pass through the lugs 221 and are screwed to the electrodialysis membrane assembly 1, and there is a clearance space 222 between the two lugs 221. The lugs 221 cooperate with the screws 3 to achieve installation of the drainage base 2, which is easy to operate. The clearance space 222 is provided to make room for other structures of the electrodialysis membrane assembly 1, such as locking bolts.

[0040] The left and right ends of the raised portion 21 are provided with first water guide surfaces 212 inclined outwards. The first water guide surfaces 212 facilitate water discharge from the left and right ends of the raised portion 21.

[0041] The base is made of PE, PP or PVC. The use of non-metallic materials can further prevent rust.

[0042] Embodiment 2:

[0043] like Figures 7 and 8 As shown, the difference between this embodiment and the first embodiment is that:

[0044] The elevated portion 21 between adjacent first drainage grooves 211 is provided with a second drainage groove 213, and both the first drainage groove 211 and the second drainage groove 213 penetrate the elevated portion 21. On the basis that the first drainage groove 211 collects and discharges the water dripping from the electrodialysis membrane assembly 1, the second drainage groove 213 is provided to collect and discharge the water at the bottom of the electrodialysis membrane assembly 1 that does not drip and moves to the elevated portion 21 between adjacent first drainage grooves 211. This makes the drainage more comprehensive and the drainage effect better.

[0045] The top of the second drainage groove 213 has a second water guide surface 214 which is inclined inwards. The second water guide surface 214 is arranged to facilitate water on the raised portion 21 to enter the second drainage groove 213 .

[0046] The bottom of the second drain groove 213 has a third water guide surface 215 which is inclined downward from one end close to the mounting portion 22 to one end away from the mounting portion 22. The third water guide surface 215 is provided to facilitate water to be discharged from the second drain groove 213.

[0047] Embodiment three:

[0048] like Fig. 9 As shown, the difference between this embodiment and the first embodiment is that:

[0049] Each lug 221 includes a plurality of through holes 223 spaced apart along its length, and the screw 3 passes through the through hole 223 and is screwed to the electrodialysis membrane assembly 1. The arrangement of the plurality of through holes 223 spaced apart can adapt to electrodialysis membrane assemblies 1 of different specifications, and has strong adaptability.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrodialysis membrane module, characterized in that: It includes an electrodialysis membrane assembly and a drainage base detachably arranged at the bottom of the electrodialysis membrane assembly; The drainage base includes a raised portion and a mounting portion arranged on the top of the raised portion; The bottom end of the electrodialysis membrane assembly is placed on the top of the raised portion, and the side wall of the electrodialysis membrane assembly is detachably connected to the mounting portion; A plurality of first drainage grooves are formed on the top of the elevated portion along its length direction.

2. The electrodialysis membrane module according to claim 1, characterized in that: The electrodialysis membrane assembly is detachably connected to the mounting portion by means of screw locking; The mounting portion includes lugs disposed at both ends of the raised portion, and the screw passes through the lugs and is threadedly connected to the electrodialysis membrane assembly; There is a clearance space between the two lugs.

3. The electrodialysis membrane module according to claim 1, characterized in that: Both ends of the elevated portion have a first water guiding surface arranged to be inclined outward.

4. The electrodialysis membrane module according to claim 1, characterized in that: The raised portions between adjacent first drainage grooves are each provided with a second drainage groove; The first drainage groove and the second drainage groove both penetrate the raised portion.

5. The electrodialysis membrane module according to claim 4, characterized in that: The top of the second drainage groove has a second water guide surface which is inclined inwards.

6. The electrodialysis membrane module according to claim 4, characterized in that: The bottom of the second drainage groove has a third water guide surface which is inclined downward from an end close to the mounting portion to an end away from the mounting portion.

7. The electrodialysis membrane module according to claim 2, characterized in that: Each of the lugs comprises a plurality of through holes spaced apart along the length direction thereof, and the screws pass through the through holes and are screwed to the electrodialysis membrane assembly.

8. The electrodialysis membrane module according to claim 1, characterized in that: The base is made of PE, PP or PVC.

9. The electrodialysis membrane module according to claim 1, characterized in that: The electrodialysis membrane assembly includes a membrane stack, an electrode unit, a clamping iron plate, a decorative plate, and an electrode junction box; Electrode units are arranged on both the front and rear sides of the membrane stack, a clamping iron plate is arranged on the outside of the electrode unit, a decorative plate is arranged on the outside of the clamping iron plate, and the electrode junction box is fixed to the decorative plate and electrically connected to the electrode unit.

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