Low-resistance electrodialysis membrane stack

Abstract

The utility model discloses a low resistance electrodialysis membrane stack, relates to electrodialyzer subassembly technical field, including membrane stack substrate and ion exchange membrane main part, the ion exchange membrane main part is movably connected to the right side of membrane stack substrate, on the membrane stack substrate is provided with convenient membrane change mechanism, on the membrane stack substrate is provided with water leakage alarm mechanism, the membrane stack substrate is provided with water leakage alarm mechanism. The convenient film changing mechanism comprises supporting legs, and a fixed side plate is fixedly mounted at the tops of the supporting legs. According to the ion exchange membrane fixing device, through the design of the hollow cylinder, the inner cavity of the hollow cylinder is filled with gas, the sealing sliding block can be promoted to slide leftwards in the inner cavity of the hollow cylinder, then the sliding base plate is driven to move leftwards and is matched with the membrane stack base plate to complete fixing treatment on the ion exchange membrane main body, and the sliding base plate can be pushed rightwards in the state that the manual valve is opened; by means of the design, the ion exchange membrane main body can be replaced without disassembling and assembling the bolts, and the maintenance efficiency of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrodialyzer components, and particularly relates to a low-resistance electrodialysis membrane stack. Background Technique

[0002] The electrodialysis process is a combination of an electrochemical process and a dialysis diffusion process. Under the action of a direct current electric field, using the selective permeability of ion exchange membranes, cations pass through the cation exchange membrane, and anions pass through the anion exchange membrane. Ions in the desalination chamber migrate to the concentration chamber, and ions in the concentration chamber cannot migrate to the desalination chamber due to the selective permeability of the membrane. In this way, the salt concentration in the fresh chamber gradually decreases, and the salt concentration in the adjacent concentration chamber gradually increases accordingly. Through such a process, the salt in the material is removed. The low-resistance electrodialysis membrane stack is a device composed of multiple ion exchange membranes combined in a certain order and structure, and it is the core part of the electrodialysis equipment.

[0003] In the existing low-resistance electrodialysis membrane stack, the two substrates are connected by cross bars and bolts. After the ion exchange membrane is used for a period of time, it needs to be replaced. During the replacement process, the operator also needs to disassemble and assemble several bolts in sequence, which leads to the problem of low maintenance efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a low-resistance electrodialysis membrane stack to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A low-resistance electrodialysis membrane stack includes a membrane stack substrate and an ion exchange membrane body. The ion exchange membrane body is movably connected to the right side of the membrane stack substrate. A convenient membrane replacement mechanism is arranged on the membrane stack substrate, and a water leakage alarm mechanism is arranged on the membrane stack substrate.

[0007] The convenient membrane replacement mechanism includes a support leg. The top of the support leg is fixedly installed with a fixed side plate. The right side of the fixed side plate is fixedly installed with a hollow cylinder. A sealing slider is slidably connected to the inner wall of the hollow cylinder. The left side of the sealing slider is fixedly installed with an extension shaft. The left end of the extension shaft extends to the left side of the fixed side plate and is fixedly connected with a movable plate. The left side of the movable plate is fixedly installed with a sliding substrate. The left side of the sliding substrate is movably connected to the right side of the ion exchange membrane body.

[0008] Preferably, a stabilizing rod is fixedly installed on the right side of the movable plate. The outer wall of the stabilizing rod is slidably connected to the inner wall of the fixed side plate. A cross bar is slidably connected to the inner wall of the sliding substrate. The cross bar is welded to the right side of the membrane stack substrate.

[0009] Preferably, a hollow block is fixedly connected to the right side of the hollow cylinder, and a pressure gauge is fixedly connected to the top of the hollow block.

[0010] Preferably, a manual valve is fixedly connected to the top of the hollow block. A raised pipe is fixedly connected to the top of the manual valve. A limiting ring is fixedly installed on the inner wall of the raised pipe, and a movable filter element is movably inserted into the top of the limiting ring.

[0011] Preferably, the water leakage alarm mechanism includes a bottom support frame. The membrane stack substrate is fixedly installed at the bottom of the inner wall of the bottom support frame, and the support legs are fixedly installed on the right side of the bottom support frame.

[0012] Preferably, an inclined plate is fixedly installed at the bottom of the inner wall of the bottom support frame. Symmetric inclined plates are fixedly installed at the bottom of the inner wall of the bottom support frame and are located on the right side of the bottom support frame. A through groove is formed in the bottom of the bottom support frame, and a water collecting frame is fixedly installed on the inner wall of the through groove.

[0013] Preferably, a water leakage sensor is fixedly installed at the bottom of the inner wall of the water collecting frame, and a rubber plug is movably inserted into the bottom of the inner wall of the water collecting frame.

[0014] Due to the adoption of the above technical solutions, the technical progress achieved by the present utility model compared with the prior art is as follows:

[0015] The present utility model provides a low-resistance electrodialysis membrane stack to solve the problem that it is time-consuming to disassemble and assemble a number of bolts during the existing maintenance process. Through the design of the hollow cylinder, by filling gas into its inner cavity, the sealing slider can be prompted to slide leftward in the inner cavity of the hollow cylinder, thereby driving the sliding substrate to move leftward, and cooperating with the membrane stack substrate to complete the fixation of the ion exchange membrane main body. When the manual valve is in the open state, the sliding substrate can be pushed rightward to release the fixation of the ion exchange membrane main body. With this design, the replacement of the ion exchange membrane main body can be carried out without disassembling and assembling the bolts, improving the maintenance efficiency of this structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the internal structure of the hollow cylinder of the present utility model;

[0018] Figure 3 is a schematic diagram of the sectional structure of the raised pipe of the present utility model;

[0019] Figure 4 is a schematic diagram of the structure of the bottom support frame of the present utility model;

[0020] Figure 5 is a schematic diagram of the internal structure of the water collecting frame of the present utility model.

[0021] In the figure: 1. Membrane stack substrate; 11. Ion exchange membrane main body; 2. Convenient membrane replacement mechanism; 21. Cross bar; 22. Sliding substrate; 23. Support leg; 24. Fixed side plate; 25. Stabilizing rod; 26. Movable plate; 27. Hollow cylinder; 271. Sealing slider; 272. Extension shaft; 273. Hollow block; 274. Pressure gauge; 275. Manual valve; 276. Convex tube; 277. Limit ring; 278. Movable filter element; 3. Leakage alarm mechanism; 31. Bottom support frame; 32. Inclined plate; 33. Symmetric inclined plate; 34. Water collection frame; 35. Leakage sensor; 36. Rubber plug. Specific implementation mode

[0022] The present utility model will be further described in detail below in conjunction with embodiments:

[0023] As Figures 1 - 5 shown, the present utility model provides a low-resistance electrodialysis membrane stack, including a membrane stack substrate 1 and an ion exchange membrane main body 11. The ion exchange membrane main body 11 is movably connected to the right side of the membrane stack substrate 1. A convenient membrane replacement mechanism 2 is arranged on the membrane stack substrate 1, and a leakage alarm mechanism 3 is arranged on the membrane stack substrate 1. The convenient membrane replacement mechanism 2 includes a support leg 23. The top of the support leg 23 is fixedly installed with a fixed side plate 24. The right side of the fixed side plate 24 is fixedly installed with a hollow cylinder 27. A sealing slider 271 is slidably connected to the inner wall of the hollow cylinder 27. The left side of the sealing slider 271 is fixedly installed with an extension shaft 272. The left end of the extension shaft 272 extends to the left side of the fixed side plate 24 and is fixedly connected with a movable plate 26. The left side of the movable plate 26 is fixedly installed with a sliding substrate 22. The left side of the sliding substrate 22 is movably connected to the right side of the ion exchange membrane main body 11. Filling gas into the inner cavity of the hollow cylinder 27 can cause the sealing slider 271 to slide leftward in the inner cavity of the hollow cylinder 27, thereby driving the sliding substrate 22 to move leftward, and cooperating with the membrane stack substrate 1 to complete the fixing process of the ion exchange membrane main body 11. In the state where the manual valve 275 is opened, the sliding substrate 22 can be pushed to the right to release the fixation of the ion exchange membrane main body 11. With this design, it is possible to replace the ion exchange membrane main body 11 without disassembling and assembling bolts.

[0024] Furthermore, as Figures 1 - 3As shown, a stabilizing rod 25 is fixedly installed on the right side of the movable plate 26, and the outer wall of the stabilizing rod 25 is slidably connected to the inner wall of the fixed side plate 24. A cross bar 21 is slidably connected to the inner wall of the sliding base plate 22, and the cross bar 21 is welded to the right side of the membrane stack base plate 1. A hollow block 273 is fixedly connected to the right side of the hollow cylinder 27, and a pressure gauge 274 is fixedly connected to the top of the hollow block 273. A manual valve 275 is fixedly connected to the top of the manual valve 275. A raised pipe 276 is fixedly connected to the inner wall of the raised pipe 276. A limit ring 277 is fixedly installed on the top, and a movable filter 278 is movably inserted on the top of the limit ring 277. After opening the manual valve 275, an external air pump is used to transport gas from the protruding tube 276 to the inner cavity of the hollow block 273 and the hollow cylinder 27. The design of the movable filter 278 can avoid the problem of impurities entering during inflation. The design of the pressure gauge 274 is convenient for the operator to observe the air pressure in the inner cavity of the hollow block 273, so as to stop the inflation in time and avoid the problem of the ion exchange membrane body 11 being crushed.

[0025] Furthermore, if Figure 1 , Figure 4 , Figure 5 As shown, the water leakage alarm mechanism 3 includes a bottom support frame 31, the membrane stack substrate 1 is fixedly installed at the bottom of the inner wall of the bottom support frame 31, the support leg 23 is fixedly installed on the right side of the bottom support frame 31, the bottom of the inner wall of the bottom support frame 31 is fixedly installed with an inclined plate 32, the bottom of the inner wall of the bottom support frame 31 is fixedly installed with a symmetrical inclined plate 33 and is located on the right side of the bottom support frame 31, a through groove is opened at the bottom of the bottom support frame 31, a water collecting frame 34 is fixedly installed on the inner wall of the through groove, a water leakage sensor 35 is fixedly installed at the bottom of the inner wall of the water collecting frame 34, and a rubber plug 3 is movably inserted at the bottom of the inner wall of the water collecting frame 34. 6. If water seepage occurs in the ion exchange membrane body 11, the bottom support frame 31 is designed to receive the water seepage, and the inclined plate 32 and the symmetrical inclined plate 33 cooperate to guide the water seepage into the inner cavity of the water collecting frame 34. The water leakage sensor 35 can monitor the water seepage signal. The water leakage sensor 35 is connected to an external buzzer or other alarm device through an external controller, and then the external buzzer or other alarm device can be controlled to work, prompting nearby personnel, so that the operator can promptly maintain the entire ion exchange membrane body 11 to reduce the waste of water resources.

[0026] The working principle of this low-resistance electrodialysis membrane stack is described in detail below.

[0027] like Figures 1 - 5As shown, when the manual valve 275 is opened, the sliding substrate 22 can be pushed to the right to release the fixation of the ion exchange membrane body 11. After opening the manual valve 275, an external air pump can be used to transport gas into the inner cavities of the hollow block 273 and the hollow cylinder 27 from the raised tube 276, completing the fixation of the ion exchange membrane body 11 and realizing the function of facilitating the maintenance of the ion exchange membrane body 11 by workers.

[0028] It should be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

[0029] The above has generally described the present utility model in detail, but on the basis of the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, the modifications or improvements that do not depart from the spirit and idea of the present utility model are all within the protection scope of the present utility model.

Claims

1. A low resistance electrodialysis membrane stack, characterized in that: It includes a membrane stack substrate and an ion exchange membrane body, wherein the ion exchange membrane body is movably connected to the right side of the membrane stack substrate, a convenient membrane replacement mechanism is provided on the membrane stack substrate, and a water leakage alarm mechanism is provided on the membrane stack substrate; The convenient membrane changing mechanism includes a supporting leg, a fixed side plate is fixedly installed on the top of the supporting leg, a hollow cylinder is fixedly installed on the right side of the fixed side plate, a sealing slider is slidably connected to the inner wall of the hollow cylinder, an extension shaft is fixedly installed on the left side of the sealing slider, the left end of the extension shaft extends to the left side of the fixed side plate and is fixedly connected to a movable plate, a sliding base plate is fixedly installed on the left side of the movable plate, and the left side of the sliding base plate is movably connected to the right side of the ion exchange membrane body.

2. A low resistance electrodialysis membrane stack according to claim 1, characterized in that: A stabilizing rod is fixedly installed on the right side of the movable plate, the outer wall of the stabilizing rod is slidably connected to the inner wall of the fixed side plate, a cross bar is slidably connected to the inner wall of the sliding base plate, and the cross bar is welded to the right side of the membrane stack base plate.

3. A low resistance electrodialysis membrane stack according to claim 1, characterized in that: A hollow block is fixedly connected to the right side of the hollow cylinder, and a pressure gauge is fixedly connected to the top of the hollow block.

4. A low resistance electrodialysis membrane stack according to claim 3, characterized in that: A manual valve is fixedly connected to the top of the hollow block, a raised tube is fixedly connected to the top of the manual valve, a limiting ring is fixedly installed on the inner wall of the raised tube, and a movable filter is movably inserted at the top of the limiting ring.

5. The low resistance electrodialysis membrane stack according to claim 1, characterized in that: The water leakage alarm mechanism comprises a bottom support frame, the membrane stack substrate is fixedly mounted on the bottom of the inner wall of the bottom support frame, and the support leg is fixedly mounted on the right side of the bottom support frame.

6. A low resistance electrodialysis membrane stack according to claim 5, characterized in that: An inclined plate is fixedly installed at the bottom of the inner wall of the bottom support frame, a symmetrical inclined plate is fixedly installed at the bottom of the inner wall of the bottom support frame and is located on the right side of the bottom support frame, a through groove is opened at the bottom of the bottom support frame, and a water collecting frame is fixedly installed on the inner wall of the through groove.

7. A low resistance electrodialysis membrane stack according to claim 6, characterized in that: A water leakage sensor is fixedly installed at the bottom of the inner wall of the water collecting frame, and a rubber plug is movably inserted at the bottom of the inner wall of the water collecting frame.

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