Electrodialysis pretreatment device

Abstract

The utility model discloses an electrodialysis pretreatment device, which belongs to the technical field of electrodialysis and comprises an electrodialysis box, two positive and negative electrode plates are fixedly inlaid on the inner side wall of the electrodialysis box, and a group of equidistantly arranged partition plates are fixedly connected to the inner wall of the electrodialysis box. Positive and negative ion exchange membranes are fixedly embedded in the outer surfaces of the group of partition plates at intervals, a filter cartridge is fixedly connected to the left side surface of the electrodialysis box, and electric field action can be performed through the electrodialysis box, the partition plates, the positive and negative ion exchange membranes, the positive and negative electrode plates, the filter cartridge and the filter, so that migration and ion exchange of charged ions in a stock solution are realized; according to the present invention, with the arrangement of the maintenance cover, the holding handle, the sealing cabin door, the opening and closing handle and the rotating rod, the maintenance cover and the sealing cabin door can be conveniently opened so as to conveniently clean and maintain the positive-negative ion exchange membrane and the filter, and the effective electrodialysis of the stock solution can be conveniently performed.

Description

Technical Field

[0001] The utility model relates to the technical field of electrodialysis, in particular to an electrodialysis pretreatment device. Background Art

[0002] Electrodialysis utilizes the selective permeability of a semipermeable membrane to separate charged solute particles under the action of an electric field. Specifically, an anionic and a cationic ion exchange membrane are inserted into the electrodialyzer. Under the action of the electric field, the charged particles migrate toward the electrodes of opposite charge, resulting in a decrease in the salt concentration in the intermediate chamber, thus achieving the purpose of desalination. The application range of electrodialysis is very wide, including water desalination and desalination, seawater concentration and salt production, dairy and fruit juice processing, chemical product preparation, etc. In addition, electrodialysis is also used for pure water preparation and wastewater treatment in the food, light industry, pharmaceutical and other industries.

[0003] The electrodialysis devices in the current prior art are unable to remove particulate impurities in the raw aqueous solution before the raw aqueous solution is subjected to electrodialysis treatment. Once these particulate impurities enter the electrodialysis device, the electrodialysis ion membrane will be blocked or damaged, thereby affecting the efficiency of the electrodialysis desalination treatment and the service life of the electrodialysis device. Among them, Chinese patent publication number CN206103721U discloses an electrodialysis pretreatment device, but the above patent is inconvenient for maintenance or replacement of the filter device and the electrodialysis device, which in turn affects the use effect of the electrodialysis device. Therefore, those skilled in the art provide an electrodialysis pretreatment device to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present invention is to provide an electrodialysis pretreatment device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An electrodialysis pretreatment device comprises an electrodialysis box, wherein the inner wall of the electrodialysis box is fixedly inlaid with two positive and negative electrode plates, the inner wall of the electrodialysis box is fixedly connected to a group of equidistantly arranged partition plates, the outer surfaces of a group of the partition plates are fixedly inlaid with positive and negative ion exchange membranes at intervals, the left side of the electrodialysis box is fixedly connected to a filter cartridge, the bottom surface of the filter cartridge is fixedly connected to a raw water supply pipe, the upper surface of the raw water supply pipe is fixedly connected to an injection pipe, the output end of each injection pipe is fixedly connected to the bottom surface of the electrodialysis box, the inner wall of the filter cartridge is provided with a mounting thread, the inner wall of the mounting thread is threadedly connected to a particle filter, the top of the filter cartridge is installed with a sealed cabin door, the upper surface of the sealed cabin door is fixedly connected to an opening and closing handle, the left side of the filter cartridge is fixedly connected to a liquid pump, and the input end of the liquid pump is fixedly connected to the raw water pipe.

[0007] As a further solution of the present invention: a control panel is fixedly connected to the front of the electrodialysis box, and the control panel is electrically connected to the liquid pump and the positive and negative electrode plates through wires.

[0008] As a further solution of the present invention: a maintenance cover is fixedly connected to the upper surface of the electrodialysis box through two groups of mounting nails, and two gripping handles are fixedly connected to the upper surface of the maintenance cover.

[0009] As a further solution of the present invention: two rotating rods are fixedly connected to the upper surface of the particle filter, and the rotating rods are made of stainless steel.

[0010] As a further solution of the present invention: two groups of support legs are fixedly connected to the bottom surface of the electrodialysis box, the bottom end of each support leg is fixedly connected to a base plate, and the upper surface of each base plate is provided with two mounting holes.

[0011] As a further solution of the present invention: a group of fresh water suction pipes is fixedly connected to the back of the electrodialysis box, and the output ends of the two fresh water suction pipes are fixedly connected to a fresh water discharge pipe.

[0012] As a further solution of the present invention: a group of concentrated water suction pipes is fixedly connected to the back of the electrodialysis box, and the output ends of the group of concentrated water suction pipes are fixedly connected to a concentrated water discharge pipe.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The electrodialysis pretreatment device, through the electrodialysis box, separator, positive and negative ion exchange membrane, positive and negative electrode plates, filter cartridge and filter, can carry out electric field action to achieve the migration of charged ions and ion exchange in the raw solution, and can filter and remove impurities in the raw solution, facilitating effective electrodialysis treatment of the raw solution. In addition, by providing a maintenance cover, a gripping handle, a sealing door, an opening and closing handle and a rotating rod, the maintenance cover and the sealing door can be easily opened, facilitating the cleaning and maintenance of the positive and negative ion exchange membrane and the filter, effectively maintaining the dialysis effect, and facilitating effective electrodialysis of the raw solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of an electrodialysis pretreatment device;

[0016] Figure 2 It is a rear view of an electrodialysis box in an electrodialysis pretreatment device;

[0017] Figure 3 This is a schematic diagram of the internal dissection structure of an electrodialysis box in an electrodialysis pretreatment device;

[0018] Figure 4 It is a cross-sectional view of a top view of an electrodialysis box in an electrodialysis pretreatment device.

[0019] In the figure: 1. Electrodialysis box; 2. Support legs; 3. Base plate; 4. Maintenance cover; 5. Grip; 6. Opening and closing handle; 7. Sealing hatch; 8. Liquid pump; 9. Raw water pipe; 10. Filter cartridge; 11. Raw water pipe; 12. Control panel; 13. Fresh water discharge pipe; 14. Concentrated water discharge pipe; 15. Positive and negative electrode plates; 16. Rotating rod; 17. Particle filter; 18. Mounting thread; 19. Water injection pipe; 20. Positive and negative ion exchange membrane; 21. Concentrated water suction pipe; 22. Fresh water suction pipe; 23. Separator; 24. Mounting hole. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] See also Figures 1 to 4In an embodiment of the present invention, an electrodialysis pretreatment device includes an electrodialysis box 1, the inner wall of the electrodialysis box 1 is fixedly inlaid with two positive and negative electrode plates 15, the inner wall of the electrodialysis box 1 is fixedly connected to a group of equidistantly arranged partition plates 23, the outer surface of a group of partition plates 23 is fixedly inlaid with positive and negative ion exchange membranes 20 at intervals, the left side of the electrodialysis box 1 is fixedly connected to a filter cartridge 10, the bottom surface of the filter cartridge 10 is fixedly connected to a raw water delivery pipe 11, and the upper surface of the raw water delivery pipe 11 is fixedly connected to a water injection pipe. 19. The output end of each water injection pipe 19 is fixedly connected to the bottom surface of the electrodialysis box 1. The inner wall of the filter cartridge 10 is provided with a mounting thread 18. The inner wall of the mounting thread 18 is threadedly connected to the particle filter 17. A sealed hatch 7 is installed on the top of the filter cartridge 10. The upper surface of the sealed hatch 7 is fixedly connected to the opening and closing handle 6. The left side of the filter cartridge 10 is fixedly connected to a liquid pump 8. The input end of the liquid pump 8 is fixedly connected to the raw water pipe 9. In actual applications, the electrodialyzer is usually composed of multiple pairs of exchange membranes to improve efficiency.

[0023] A control panel 12 is fixedly connected to the front of the electrodialysis box 1. The control panel 12 is electrically connected to the liquid pump 8 and the positive and negative electrode plates 15 through wires, which enables the staff to control the device more conveniently and facilitates the electrodialysis operation of the raw water solution. The upper surface of the electrodialysis box 1 is fixedly connected to a maintenance cover 4 through two sets of mounting nails. Two gripping handles 5 are fixedly connected to the upper surface of the maintenance cover 4, which can be easily opened to facilitate the maintenance and cleaning of the positive and negative ion exchange membranes 20. Two rotating rods 16 are fixedly connected to the upper surface of the particle filter 17. The rotating rods 16 are made of stainless steel and can easily rotate the particle filter 17 to facilitate the replacement of the particle filter 17.

[0024] Two sets of support legs 2 are fixedly connected to the bottom of the electrodialysis box 1, and the bottom end of each support leg 2 is fixedly connected to a base plate 3. The upper surface of each base plate 3 is provided with two mounting holes 24, which can be used to install and fix the electrodialysis box 1, facilitating the stable use of this device. A set of fresh water suction pipes 22 are fixedly connected to the back of the electrodialysis box 1, and the output ends of the two fresh water suction pipes 22 are fixedly connected to the fresh water discharge pipe 13, which can facilitate the discharge of fresh water liquid. A set of concentrated water suction pipes 21 are fixedly connected to the back of the electrodialysis box 1, and the output ends of a set of concentrated water suction pipes 21 are fixedly connected to the concentrated water discharge pipe 14, which can facilitate the discharge of concentrated water liquid.

[0025] The working principle of the present invention is: when in use, first install and fix the electrodialysis box 1 through the base plate 3, the mounting hole 24 and the support leg 2, then power on the device, click the control panel 12 to control the operation of the liquid pump 8, use the raw water pipe 9 to extract the raw water solution, flow through the filter cartridge 10 and the particle filter 17 to filter and remove impurities from the raw water solution, and the impurity-free raw water solution is injected into the interior of the electrodialysis box 1 through the raw water delivery pipe 11 and the water injection pipe 19, and then power on the positive and negative electrode plates 15 to generate an electric field. Under the action of the electric field, the charged particles migrate to the electrodes of opposite charge, and the charged ions pass through the positive and negative ion exchange membranes 20, resulting in a decrease in the salt concentration of the raw water solution in the intermediate chamber, thereby achieving the purpose of desalination of the raw water solution and realizing the electrodialysis treatment of the raw water solution.

[0026] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can make equivalent replacements or changes according to the technical solution and the utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be included in the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An electrodialysis pretreatment device, comprising an electrodialysis box (1), characterized in that: The inner wall of the electrodialysis box (1) is fixedly inlaid with two positive and negative electrode plates (15), the inner wall of the electrodialysis box (1) is fixedly connected to a group of equidistantly arranged partition plates (23), the outer surfaces of a group of the partition plates (23) are fixedly inlaid with positive and negative ion exchange membranes (20) at intervals, the left side of the electrodialysis box (1) is fixedly connected to a filter cartridge (10), the bottom surface of the filter cartridge (10) is fixedly connected to a raw water delivery pipe (11), the upper surface of the raw water delivery pipe (11) is fixedly connected to a water injection pipe (19), each The output ends of the water injection pipes (19) are fixedly connected to the bottom surface of the electrodialysis box (1); the inner wall of the filter cartridge (10) is provided with a mounting thread (18); the inner wall of the mounting thread (18) is threadedly connected to a particle filter (17); a sealing hatch (7) is installed at the top end of the filter cartridge (10); an opening and closing handle (6) is fixedly connected to the upper surface of the sealing hatch (7); the left side of the filter cartridge (10) is fixedly connected to a liquid extraction pump (8); and the input end of the liquid extraction pump (8) is fixedly connected to a raw water pipe (9).

2. An electrodialysis pretreatment device according to claim 1, characterized in that: A control panel (12) is fixedly connected to the front of the electrodialysis box (1), and the control panel (12) is electrically connected to the liquid pump (8) and the positive and negative electrode plates (15) via wires.

3. An electrodialysis pretreatment device according to claim 1, characterized in that: A maintenance cover (4) is fixedly connected to the upper surface of the electrodialysis box (1) via two sets of mounting nails, and two gripping handles (5) are fixedly connected to the upper surface of the maintenance cover (4).

4. An electrodialysis pretreatment device according to claim 1, characterized in that: Two rotating rods (16) are fixedly connected to the upper surface of the particle filter (17), and the rotating rods (16) are made of stainless steel.

5. An electrodialysis pretreatment device according to claim 1, characterized in that: Two groups of support legs (2) are fixedly connected to the bottom surface of the electrodialysis box (1), the bottom end of each support leg (2) is fixedly connected to a base plate (3), and the upper surface of each base plate (3) is provided with two mounting holes (24).

6. An electrodialysis pretreatment device according to claim 1, characterized in that: A set of fresh water suction pipes (22) is fixedly connected to the back of the electrodialysis box (1), and the output ends of the two fresh water suction pipes (22) are fixedly connected to a fresh water discharge pipe (13).

7. The electrodialysis pretreatment device according to claim 1, characterized in that: The back of the electrodialysis box (1) is fixedly connected to a group of concentrated water suction pipes (21), and the output ends of the group of concentrated water suction pipes (21) are fixedly connected to a concentrated water discharge pipe (14).

Images