Capacitive deionization device

Abstract

The utility model discloses a capacitive deionization device, relates to the technical field of water treatment equipment, and comprises a bottom fixing frame, a water pump is arranged on the right side of the top of the bottom fixing frame, three groups of cylindrical housings are transversely and fixedly connected inside a supporting frame, and flushing components convenient for backwashing regeneration are arranged inside the cylindrical housings. The capacitive deionization device is provided with a micro electric cylinder, a distribution cavity, a side groove, a flat nozzle, an access pipe and a sealing ring, when the capacitive deionization device is used, the micro electric cylinder retracts to pull the distribution cavity to displace, the flat nozzle sprays high-speed water flow outwards, the surfaces of an anion selective permeable membrane and a cation selective permeable membrane are washed, attachments on the surfaces are removed, and the service life of the anion selective permeable membrane and the cation selective permeable membrane is prolonged. Meanwhile, the repelled electrolyte ions are taken away, the function of accelerating the water flow to improve the backwashing efficiency is realized, and the problem that the device does not have the function of accelerating the water flow to improve the backwashing efficiency is solved.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, specifically a capacitor deionization device. Background Technology

[0002] Capacitive deionization is a novel technology for removing salt from water. It is widely used in seawater desalination, desalination of industrial and agricultural water, and desalination of domestic water. Its basic idea is to force ions to move towards electrodes with opposite charges by applying an electrostatic field.

[0003] Most commonly available capacitive deionization devices on the market are similar in overall structure, with a cylindrical casing as the main body and two or four sets of electrode plates installed horizontally inside. The outer surface of the electrode plates has a selective permeation membrane. The electrode plates adsorb electrolyte ions when energized. However, there are some functional shortcomings in actual use, which have room for improvement. For example, the current backwashing of the electrode plates is done by reversing the applied electric field to interchange the positive and negative electrodes, and then expelling the electrolyte ions of the same polarity and carrying them away with the water flow. The water flow rate inside the casing is constant, which is not very effective at rinsing impurities attached to the membrane surface. The backwashing efficiency still needs to be improved, but there is no function to accelerate the water flow to improve the backwashing efficiency.

[0004] Now, a novel capacitor deionization device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a capacitor deionization device to solve the problem mentioned in the background art of not having the function of accelerating water flow to improve backwashing efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a capacitive deionization device, comprising a bottom fixing frame, a water pump installed on the right side of the top of the bottom fixing frame, a support frame welded to the middle position of the top of the bottom fixing frame, three sets of cylindrical covers horizontally fixedly connected inside the support frame, a first sealing plate connected to the right flange of the cylindrical cover, a water inlet welded to the middle position of the right side of the first sealing plate, a water inlet pipe fixedly connected between the water pump and the water inlet, a second sealing plate connected to the left flange of the cylindrical cover, a water outlet welded to the middle position of the left side of the second sealing plate, an activated carbon anode plate horizontally fixedly connected to the top of the right side of the second sealing plate, an anion selective permeation membrane covered at the bottom end of the activated carbon anode plate, an activated carbon cathode plate horizontally fixedly connected to the bottom of the right side of the second sealing plate, a cation selective permeation membrane covered at the top end of the activated carbon cathode plate, a water outlet pipe fixedly connected to the left side of the three sets of water outlets, a controller fixedly connected to the bottom of the front end of the support frame, and a rinsing assembly for easy backwashing and regeneration provided inside the cylindrical cover.

[0007] The flushing assembly includes a dispensing chamber disposed inside a cylindrical cover. Miniature electric cylinders are installed at the upper and lower ends of the right side of the first sealing plate. Side grooves are provided at the front and rear ends of the dispensing chamber. Flat nozzles are fixedly connected to the upper and lower ends of the left side of the dispensing chamber. An inlet tube is fixedly connected to the middle position of the right side of the dispensing chamber. A sealing ring is glued to the left side of the outside of the inlet tube.

[0008] As a further technical solution of this utility model, the output end of the micro electric cylinder passes through the first sealing plate and extends into the interior of the cylindrical cover, and the output end of the micro electric cylinder is fixedly connected to the distribution cavity.

[0009] As a further technical solution of this utility model, the dispensing cavity and the flat nozzle are internally connected, and the flat nozzle is symmetrically distributed about the horizontal center line of the dispensing cavity.

[0010] As a further technical solution of this utility model, the outer diameter of the access pipe is consistent with the inner diameter of the water inlet, and the miniature electric cylinder and the controller are electrically connected.

[0011] As a further technical solution of this utility model, the activated carbon anode plate and the activated carbon cathode plate are respectively fitted with outer covers, and two sets of stainless steel limiting plates are welded to the front and rear ends of the cylindrical cover.

[0012] As a further technical solution of this utility model, the shape and size of the outer shell are adapted to the shape and size of the inner shell of the cylindrical shell, and the outer shell can slide left and right along the gap between the cylindrical shell and the stainless steel limiting plate.

[0013] As a further technical solution of this utility model, external clamp-type flow sensors are respectively clamped and fixed on the outside of the water inlet pipe and the water outlet pipe, and sensor wiring is movably connected between the controller and the external clamp-type flow sensors.

[0014] As a further technical solution of this utility model, the inner walls of the two sets of external clamp-on flow sensors are tightly fitted to the outer walls of the inlet pipe and the outlet pipe, respectively, and the external clamp-on flow sensors and the controller are electrically connected.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the capacitor deionization device not only realizes the function of accelerating water flow and improving backwashing efficiency, but also realizes the function of easy disassembly and assembly of electrode plates, and also realizes the function of monitoring inlet and outlet flow rates.

[0016] (1) Equipped with a miniature electric cylinder, a distribution chamber, a side groove, a flat nozzle, an inlet pipe, and a sealing ring, the water pump pumps raw water into the cylindrical casing through the inlet pipe during use. The activated carbon anode plate and activated carbon cathode plate are energized to generate an electrostatic field. The activated carbon anode plate adsorbs electrolyte anions, and the activated carbon cathode plate adsorbs electrolyte cations. The selective permeation membrane can block ions of the same polarity, improving adsorption efficiency. When backwashing is required, the electric field of the activated carbon anode plate and activated carbon cathode plate is reversed, and the electrolytes originally adsorbed on the activated carbon anode plate and activated carbon cathode plate are removed. Ions are expelled, the micro-electric cylinder retracts and pulls the distribution chamber to move, the inlet pipe is inserted into the water inlet, the sealing ring increases the interface sealing, and water enters the distribution chamber directly from the inlet pipe. The flat nozzle sprays out a high-speed water flow to rinse the surface of the anion selective osmosis membrane and the cation selective osmosis membrane, removing the surface deposits and carrying away the expelled electrolyte ions. After backwashing, the micro-electric cylinder extends, the inlet pipe is removed from the water inlet, and the water speed returns to the original level. The side groove facilitates the flow of water, realizing the function of accelerating the water flow and improving the backwashing efficiency.

[0017] (2) By setting stainless steel limiting plate and outer cover, when in use, activated carbon anode plate and activated carbon cathode plate are fixed on the second sealing plate. The outer cover of activated carbon anode plate and activated carbon cathode plate can increase their structural strength. When installing, they can be directly inserted along the inside of the cylindrical cover. The stainless steel limiting plate can restrict their movement path. They are easy to disassemble and assemble, and realize the function of easy disassembly and assembly of electrode plates.

[0018] (3) By setting up an external clamp-on flow sensor and sensor wiring, when in use, the treated water flows out along the outlet pipe. The external clamp-on flow sensor outside the inlet and outlet pipes can keep monitoring its flow. When an abnormal flow is detected, the staff can intuitively perceive it and make it convenient to carry out maintenance, thus realizing the function of monitoring the inlet and outlet flow. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model;

[0020] Figure 2 This is an enlarged structural schematic diagram of the front cross-section of the cylindrical cover of this utility model;

[0021] Figure 3 This is a magnified left-view schematic diagram of the distribution cavity structure of this utility model;

[0022] Figure 4 This is an enlarged front cross-sectional view of the distribution cavity of this utility model.

[0023] Figure 5 This is an enlarged side view cross-sectional schematic diagram of the cylindrical cover of this utility model.

[0024] In the diagram: 1. Bottom mounting bracket; 2. Water pump; 3. Inlet pipe; 4. Support frame; 5. Cylindrical casing; 6. First sealing plate; 7. Inlet; 8. Second sealing plate; 9. Outlet; 10. Activated carbon anode plate; 11. Anion selective osmosis membrane; 12. Activated carbon cathode plate; 13. Cation selective osmosis membrane; 14. Miniature electric cylinder; 15. Distribution chamber; 16. Side groove; 17. Flat nozzle; 18. Connecting pipe; 19. Sealing ring; 20. Stainless steel limiting plate; 21. Outer casing; 22. Outlet pipe; 23. External clamp-on flow sensor; 24. Sensor wiring; 25. Controller. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example: Please refer to Figure 1-5 A capacitive deionization device includes a bottom mounting frame 1. A water pump 2 is mounted on the top right side of the bottom mounting frame 1. A support frame 4 is welded to the middle position of the top of the bottom mounting frame 1. Three sets of cylindrical covers 5 are horizontally fixedly connected inside the support frame 4. A first sealing plate 6 is connected to the right flange of the cylindrical cover 5. A water inlet 7 is welded to the middle position of the right side of the first sealing plate 6. A water inlet pipe 3 is fixedly connected between the water pump 2 and the water inlet 7. A second sealing plate 8 is connected to the left flange of the cylindrical cover 5. A second sealing plate 8 is welded to the middle position of the left side of the second sealing plate 8. The outlet 9 is welded at the bottom. An activated carbon anode plate 10 is horizontally fixed to the top right side of the second sealing plate 8. An anion selective permeation membrane 11 is covered at the bottom of the activated carbon anode plate 10. An activated carbon cathode plate 12 is horizontally fixed to the bottom right side of the second sealing plate 8. A cation selective permeation membrane 13 is covered at the top of the activated carbon cathode plate 12. An outlet pipe 22 is fixedly connected to the left side of the three outlets 9. A controller 25 is fixedly connected to the bottom front end of the support frame 4. A flushing component for easy backwashing and regeneration is provided inside the cylindrical cover 5.

[0027] Please see Figure 1-5 A capacitor deionization device also includes a rinsing assembly, which includes a distribution chamber 15 disposed inside a cylindrical cover 5. Miniature electric cylinders 14 are respectively installed at the upper and lower ends of the right side of the first sealing plate 6. Side grooves 16 are respectively provided at the front and rear ends of the distribution chamber 15. Flat nozzles 17 are respectively fixedly connected to the upper and lower ends of the left side of the distribution chamber 15. An inlet tube 18 is fixedly connected at the middle position of the right side of the distribution chamber 15. A sealing ring 19 is glued to the left side of the outside of the inlet tube 18.

[0028] The output end of the miniature electric cylinder 14 passes through the first sealing plate 6 and extends into the interior of the cylindrical cover 5. The output end of the miniature electric cylinder 14 is fixedly connected to the distribution cavity 15. The interiors of the distribution cavity 15 and the flat nozzle 17 are connected. The flat nozzle 17 is symmetrically distributed about the horizontal center line of the distribution cavity 15. The outer diameter of the inlet pipe 18 is consistent with the inner diameter of the inlet 7. The miniature electric cylinder 14 and the controller 25 are electrically connected, resulting in high backwashing efficiency.

[0029] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the miniature electric cylinder 14 retracts, pulling the distribution chamber 15 to a certain position. The connecting pipe 18 is inserted into the water inlet 7. The sealing ring 19 increases the sealing of the interface. Water enters the distribution chamber 15 directly from the connecting pipe 18. The flat nozzle 17 sprays high-speed water outward, rinsing the surfaces of the anion selective osmosis membrane 11 and the cation selective osmosis membrane 13, removing surface deposits, and carrying away the repelled electrolyte ions. After backwashing, the miniature electric cylinder 14 extends, the connecting pipe 18 disengages from the water inlet 7, and the water flow rate returns to its original level. The side groove 16 facilitates water flow. The miniature electric cylinder 14 and the controller 25 are electrically connected. This technology is existing technology and will not be described in detail.

[0030] The activated carbon anode plate 10 and activated carbon cathode plate 12 are respectively fitted with outer covers 21. Two sets of stainless steel limiting plates 20 are welded to the front and rear ends of the cylindrical cover 5. The shape and size of the outer cover 21 are matched with the shape and size of the inner part of the cylindrical cover 5. The outer cover 21 can slide left and right along the gap between the cylindrical cover 5 and the stainless steel limiting plates 20, which facilitates the disassembly and assembly of the electrode plates.

[0031] Specifically, such as Figure 1 and Figure 5 As shown, the outer casing 21 of the activated carbon anode plate 10 and activated carbon cathode plate 12 can increase their structural strength. During installation, it can be directly inserted along the inside of the cylindrical casing 5. The stainless steel limiting plate 20 can restrict its movement path, making it easy to disassemble and assemble.

[0032] External clamp-on flow sensors 23 are respectively clamped and fixed to the outside of the inlet pipe 3 and the outlet pipe 22. Sensor wiring 24 is movably connected between the controller 25 and the external clamp-on flow sensors 23. The inner walls of the two sets of external clamp-on flow sensors 23 are tightly fitted to the outer walls of the inlet pipe 3 and the outlet pipe 22 respectively. The external clamp-on flow sensors 23 and the controller 25 are electrically connected to facilitate flow monitoring.

[0033] Specifically, such as Figure 1As shown, the external clamp-on flow sensor 23 on the outside of the inlet pipe 3 and the outlet pipe 22 can keep monitoring their flow. When an abnormal flow is detected, the staff can intuitively perceive it and make it convenient for maintenance. The external clamp-on flow sensor 23 and the controller 25 are electrically connected. This technology is existing technology, so it will not be described in detail.

[0034] Working Principle: In use, the water pump 2 first pumps raw water into the cylindrical casing 5 through the inlet pipe 3. The activated carbon anode plate 10 and activated carbon cathode plate 12 are energized to generate an electrostatic field. The activated carbon anode plate 10 adsorbs electrolyte anions, and the activated carbon cathode plate 12 adsorbs electrolyte cations. The selective permeation membrane can block ions of the same polarity, improving adsorption efficiency. When backwashing is required, the electric field of the activated carbon anode plate 10 and activated carbon cathode plate 12 is reversed, and the electrolyte ions originally adsorbed on the activated carbon anode plate 10 and activated carbon cathode plate 12 are repelled. The miniature electric cylinder 14 retracts, pulling the distribution chamber 15 to move. The connecting pipe 18 is inserted into the water inlet 7. The sealing ring 19 increases the interface sealing. Water enters the distribution chamber 15 directly from the connecting pipe 18. The flat nozzle 17 sprays high-speed water outward, rinsing the surfaces of the anion selective osmosis membrane 11 and the cation selective osmosis membrane 13, removing surface deposits, and carrying away the repelled electrolyte ions. After backwashing, the miniature electric cylinder 14 extends, the connecting pipe 18 disengages from the water inlet 7, and the water flow rate returns to its original level. The side groove 16 facilitates water flow. The activated carbon anode plate 10 and activated carbon cathode plate 12 are fixed on the second sealing plate 8. The outer casing 21 of the activated carbon anode plate 10 and activated carbon cathode plate 12 can increase their structural strength. During installation, they are directly inserted along the inside of the cylindrical casing 5. The stainless steel limiting plate 20 can restrict their movement path, making disassembly and assembly convenient. The treated water flows out along the outlet pipe 22. The external clamp-on flow sensor 23 on the outside of the inlet pipe 3 and the outlet pipe 22 can monitor the flow rate. When an abnormal flow rate is detected, the staff can intuitively perceive it and facilitate maintenance.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A capacitor deionization device, comprising a bottom mounting bracket (1), characterized in that: A water pump (2) is installed on the right side of the top of the bottom fixing frame (1). A support frame (4) is welded to the middle position of the top of the bottom fixing frame (1). Three sets of cylindrical covers (5) are horizontally fixedly connected inside the support frame (4). A first sealing plate (6) is connected to the right flange of the cylindrical cover (5). A water inlet (7) is welded to the middle position of the right side of the first sealing plate (6). A water inlet pipe (3) is fixedly connected between the water pump (2) and the water inlet (7). A second sealing plate (8) is connected to the left flange of the cylindrical cover (5). A water outlet is welded to the middle position of the left side of the second sealing plate (8). (9), an activated carbon anode plate (10) is horizontally fixedly connected to the top right side of the second sealing plate (8), the bottom end of the activated carbon anode plate (10) is covered with anion selective permeation membrane (11), the bottom end of the right side of the second sealing plate (8) is horizontally fixedly connected with an activated carbon cathode plate (12), the top end of the activated carbon cathode plate (12) is covered with cation selective permeation membrane (13), the left side of the three sets of water outlets (9) is fixedly connected with water outlet pipes (22), the bottom of the front end of the support frame (4) is fixedly connected with a controller (25), and the inside of the cylindrical cover (5) is provided with a rinsing component that facilitates backwashing and regeneration; The flushing assembly includes a distribution chamber (15), which is located inside the cylindrical cover (5). Miniature electric cylinders (14) are installed at the upper and lower ends of the right side of the first sealing plate (6). Side grooves (16) are provided at the front and rear ends of the distribution chamber (15). Flat nozzles (17) are fixedly connected to the upper and lower ends of the left side of the distribution chamber (15). An inlet pipe (18) is fixedly connected at the middle position of the right side of the distribution chamber (15). A sealing ring (19) is glued to the left side of the outside of the inlet pipe (18).

2. The capacitor deionization device according to claim 1, characterized in that: The output end of the micro electric cylinder (14) passes through the first sealing plate (6) and extends into the interior of the cylindrical cover (5). The output end of the micro electric cylinder (14) and the distribution cavity (15) are fixedly connected.

3. The capacitor deionization device according to claim 1, characterized in that: The distribution cavity (15) and the flat nozzle (17) are connected internally, and the flat nozzle (17) is symmetrically distributed about the horizontal center line of the distribution cavity (15).

4. The capacitor deionization device according to claim 1, characterized in that: The outer diameter of the access pipe (18) is consistent with the inner diameter of the water inlet (7), and the micro electric cylinder (14) and the controller (25) are electrically connected.

5. The capacitor deionization device according to claim 1, characterized in that: The activated carbon anode plate (10) and activated carbon cathode plate (12) are respectively fitted with outer shells (21), and two sets of stainless steel limiting plates (20) are welded to the front and rear ends of the cylindrical shell (5).

6. The capacitor deionization device according to claim 5, characterized in that: The shape and size of the outer shell (21) are adapted to the shape and size of the inner cylindrical shell (5), and the outer shell (21) can slide left and right along the gap between the cylindrical shell (5) and the stainless steel limiting plate (20).

7. The capacitor deionization device according to claim 1, characterized in that: External clamp-type flow sensors (23) are respectively clamped and fixed to the outside of the water inlet pipe (3) and the water outlet pipe (22), and sensor wiring (24) is movably connected between the controller (25) and the external clamp-type flow sensor (23).

8. A capacitor deionization device according to claim 7, characterized in that: The inner walls of the two sets of external clamp-on flow sensors (23) are tightly fitted to the outer walls of the inlet pipe (3) and the outlet pipe (22), respectively, and the external clamp-on flow sensors (23) and the controller (25) are electrically connected.

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