Membrane electrode type gas diffusion electrolytic tank

Abstract

The utility model relates to the technical field of electrolytic tanks, in particular to a membrane electrode type gas diffusion electrolytic tank. Comprising a cathode current collector and an anode current collector, and further comprises a gasket assembly which is arranged between the cathode current collector and the anode current collector and is used for reducing the overall thickness of the device and effectively improving the overall current of the device; the gas inlet pipe and the gas outlet pipe are communicated with the outside of the cathode current collector; the cathode liquid inlet pipe and the cathode liquid outlet pipe are both communicated with the outside of the cathode current collector, and a reference electrode is arranged in the cathode liquid inlet pipe. According to the utility model, the distance between the cathode current collector and the anode current collector can be effectively reduced through the arranged gasket assembly, so that the overall current of the device can be effectively increased, and the overall conductivity of the device can be effectively improved through the arranged conductive assembly; therefore, the device is prevented from electric leakage or short circuit in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic cells, and specifically to a membrane electrode type gas diffusion electrolytic cell. Background Art

[0002] A gas diffusion electrolytic cell is a common electrolytic cell, which is often used in water treatment systems to treat chemical pollutants, sulfides, etc. to improve water quality. It mainly consists of three parts: an electrolytic cell, a gas diffuser, and an electric machine assembly. In daily life, a membrane electrode type gas diffusion electrolytic cell is required.

[0003] Currently, the distance between the anode and cathode of the electrolytic cell is generally about 6 mm. Since the distance between the anode and cathode of the electrolytic cell is closely related to the magnitude of the current, the smaller the distance between the anode and cathode, the smaller the resistance, and the smaller the resistance, the larger the current. However, the current distance between the anode and cathode is relatively far, which will result in a relatively large resistance between the anode and cathode, thereby resulting in a relatively small overall current of the electrolytic cell, unable to meet different requirements, and reducing the overall practicality of the electrolytic cell.

[0004] Therefore, those skilled in the art provide a membrane electrode type gas diffusion electrolytic cell to solve the problems raised in the above background art. Content of the Utility Model

[0005] The purpose of the utility model is to provide a membrane electrode type gas diffusion electrolytic cell, including a cathode current collector and an anode current collector, and further including:

[0006] A gasket assembly, arranged between the cathode current collector and the anode current collector, and used to reduce the overall thickness of the device, and at the same time can effectively increase the overall current of the device;

[0007] An inlet pipe and an outlet pipe, both connected to the outside of the cathode current collector;

[0008] A cathode inlet pipe and a cathode outlet pipe, both connected to the outside of the cathode current collector, and a reference electrode is arranged inside the cathode inlet pipe;

[0009] An anode inlet pipe and an anode outlet pipe, both connected to the outside of the anode current collector;

[0010] A conductive assembly, arranged inside the anode current collector, and used to improve the overall conductivity of the device, thereby preventing the device from short - circuiting and other situations;

[0011] A conductive ear, arranged outside the anode current collector.

[0012] As a further improvement of the technical solution, the gasket assembly includes a cathode gasket disposed between the cathode current collector and the anode current collector. One side of the cathode gasket is provided with a cathode electrolyte gasket, and one side of the cathode electrolyte gasket is provided with an anode gasket. The thicknesses of the cathode gasket, the cathode electrolyte gasket, and the anode gasket are all 0.3 mm.

[0013] As a further improvement of the technical solution, the cathode current collector and the anode current collector are fixedly connected by a plurality of bolts and nuts, and activity holes for the bolts to move are provided inside the cathode gasket, the cathode electrolyte gasket, and the anode gasket.

[0014] As a further improvement of the technical solution, first serpentine groove channels are provided inside the cathode current collector, second serpentine groove channels are provided inside the anode current collector, and circular holes are provided inside the cathode current collector.

[0015] As a further improvement of the technical solution, rectangular hole grooves are provided inside the cathode gasket, the cathode electrolyte gasket, and the anode gasket, and a transmission channel is provided inside the cathode electrolyte gasket.

[0016] As a further improvement of the technical solution, the material of the cathode current collector is engineering plastic, and the material of the anode current collector is metal.

[0017] As a further improvement of the technical solution, the conductive assembly includes a cathode conductive electrode disposed inside the anode current collector. One side of the cathode conductive electrode is provided with a sealing screw, the sealing screw is fixedly connected to the anode current collector by a thread, one side of the sealing screw is provided with a propulsion screw, and the propulsion screw is fixedly connected to the sealing screw by a thread.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] In the membrane electrode type gas diffusion electrolytic cell, through the provided gasket assembly and conductive assembly, the gasket assembly can effectively shorten the distance between the cathode current collector and the anode current collector, thereby reducing the ion transfer impedance, and further effectively improving the overall performance and stability of the electrolytic cell. The conductive assembly can effectively play a conductive role, thereby preventing short circuits and other situations from occurring during the use of the electrolytic cell as a whole, affecting the normal use effect of the electrolytic cell as a whole. In this device, the electrolyte inlet and outlet are integrated on the current collector, and an ultra-thin insulating flexible cathode electrolyte gasket with a channel shape is provided to replace the original rigid electrolyte flow channel assembly with electrolyte inlet and outlet, greatly shortening the distance between the cathode and anode of the electrolytic cell, reducing the ion transfer impedance, and further improving the performance and stability of the electrolytic cell. The overall structure design is simple and easy to manufacture. Description of the Drawings

[0020] Figure 1 is a three-dimensional structural diagram of the disassembly of the present utility model;

[0021] Figure 2 is a three-dimensional structural diagram of the conductive component in the present utility model;

[0022] Figure 3 is a three-dimensional structural diagram of the cathode electrolyte gasket in the present utility model;

[0023] Figure 4 is Figure 1 an enlarged structural diagram of area A in;

[0024] Figure 5 is Figure 2 an enlarged structural diagram of area B in.

[0025] The meanings of each label in the figure are as follows:

[0026] 1. Cathode current collector; 2. Anode current collector; 3. Cathode gasket; 4. Cathode electrolyte gasket; 5. Anode gasket; 6. Inlet pipe; 7. Outlet pipe; 8. Cathode liquid outlet pipe; 9. Anode liquid inlet pipe; 10. Anode liquid outlet pipe; 11. Bolt; 12. Nut; 13. Conductive ear; 14. Cathode conductive electrode; 15. Sealing screw; 16. Propelling screw; 17. Rectangular hole groove; 18. Transmission flow channel; 19. Cathode liquid inlet pipe; 20. Reference electrode; 21. First serpentine groove flow channel; 22. Circular hole; 23. Second serpentine groove flow channel. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0028] Please refer to Figure 1 - Figure 5 as shown, this embodiment provides a membrane electrode type gas diffusion electrolytic cell, including a cathode current collector 1 and an anode current collector 2, and further including:

[0029] A gasket assembly, disposed between the cathode current collector 1 and the anode current collector 2, and used to reduce the overall thickness of the device, and at the same time can effectively improve the overall current of the device;

[0030] An inlet pipe 6 and an outlet pipe 7, both connected to the outside of the cathode current collector 1;

[0031] The cathode inlet pipe 19 and the cathode outlet pipe 8 are both connected to the outside of the cathode current collector 1, and a reference electrode 20 is provided inside the cathode inlet pipe 19;

[0032] The anode inlet pipe 9 and the anode outlet pipe 10 are both connected to the outside of the anode current collector 2;

[0033] The conductive component is arranged inside the anode current collector 2 and is used to improve the overall electrical conductivity of the device, thereby preventing situations such as short circuits in the device;

[0034] The conductive electrode tab 13 is arranged outside the anode current collector 2.

[0035] The above working principle: The gasket assembly can effectively shorten the distance between the cathode current collector 1 and the anode current collector 2, thereby reducing the ion transport impedance, and further effectively improving the overall performance and stability of the electrolytic cell. The conductive component can effectively play a conductive role, thereby preventing situations such as short circuits during the use of the overall electrolytic cell, which affect the normal use effect of the overall electrolytic cell. In this device, the electrolyte inlets and outlets are integrated on the current collector, and the ultra-thin insulating flexible cathode electrolyte gasket 4 with a flow channel shape is set to replace the original rigid electrolyte flow channel assembly with electrolyte inlets and outlets, greatly shortening the distance between the cathode and anode of the electrolytic cell, reducing the ion transport impedance, and further improving the performance and stability of the electrolytic cell. The overall structural design is simple and easy to manufacture.

[0036] In order to effectively reduce the distance between the cathode current collector 1 and the anode current collector 2, thereby effectively increasing the overall current of the device, the gasket assembly includes a cathode gasket 3 arranged between the cathode current collector 1 and the anode current collector 2. One side of the cathode gasket 3 is provided with a cathode electrolyte gasket 4, and one side of the cathode electrolyte gasket 4 is provided with an anode gasket 5. The thicknesses of the cathode gasket 3, the cathode electrolyte gasket 4, and the anode gasket 5 are all 0.3 mm. Since the thicknesses of the cathode gasket 3, the cathode electrolyte gasket 4, and the anode gasket 5 are all 0.3 mm, installing the cathode gasket 3, the cathode electrolyte gasket 4, and the anode gasket 5 between the cathode current collector 1 and the anode current collector 2 can effectively reduce the distance between the cathode current collector 1 and the anode current collector 2, thereby effectively reducing the resistance between the cathode current collector 1 and the anode current collector 2, and further effectively increasing the overall current of the electrolytic cell.

[0037] Considering that the overall electrolytic cell needs to be assembled before use, the cathode current collector 1 and the anode current collector 2 are fixedly connected by a plurality of bolts 11 and nuts 12. Activity holes for the bolts 11 to move are provided inside the cathode gasket 3, the cathode electrolyte gasket 4, and the anode gasket 5. When the overall device needs to be assembled, only need to first place the cathode gasket 3, the cathode electrolyte gasket 4, and the anode gasket 5 between the cathode current collector 1 and the anode current collector 2, and then use the bolts 11 and nuts 12 to fix the cathode current collector 1 and the anode current collector 2. Since activity holes for the bolts 11 to move are provided inside the cathode gasket 3, the cathode electrolyte gasket 4, and the anode gasket 5, after the installation between the cathode current collector 1 and the anode current collector 2 is completed, the cathode gasket 3, the cathode electrolyte gasket 4, and the anode gasket 5 will also be synchronously installed between the cathode current collector 1 and the anode current collector 2.

[0038] In order to enable the gas to flow and at the same time be able to transport the electrolyte, first serpentine groove channels 21 are provided inside the cathode current collector 1, second serpentine groove channels 23 are provided inside the anode current collector 2, and circular holes 22 are provided inside the cathode current collector 1. The first serpentine groove channels 21 provided inside the cathode current collector 1 can be used for the gas to flow, the second serpentine groove channels 23 provided inside the anode current collector 2 can be used for the anode electrolyte to flow, and the circular holes 22 provided inside the cathode current collector 1 can be used for the cathode electrolyte to be transported.

[0039] In order to effectively improve the overall performance and stability of the electrolytic cell, rectangular hole grooves 17 are provided inside the cathode gasket 3, the cathode electrolyte gasket 4, and the anode gasket 5. A transmission channel 18 is provided inside the cathode electrolyte gasket 4. The transmission channel 18 can be used for the cathode electrolyte to be transported and flow. By using the cathode electrolyte gasket 4 with the shape of the transmission channel 18, the distance between the cathode current collector 1 and the anode current collector 2 of the electrolytic cell can be significantly shortened, thereby reducing the impedance of ion transmission, and further effectively improving the overall performance and stability of the electrolytic cell.

[0040] In addition, in order to prevent short circuits and other situations from occurring during the use of the device, the material of the cathode current collector 1 is engineering plastic, and the material of the anode current collector 2 is metal. The engineering plastic can effectively play an insulating role, thereby preventing leakage and short circuits and other situations from occurring during the overall use of the device, which affects the normal use effect of the device.

[0041] In order to further improve the overall electrical conductivity of the device, the conductive component includes a cathode conductive electrode 14 disposed inside the anode current collector 2. A sealing screw 15 is provided on one side of the cathode conductive electrode 14. The sealing screw 15 is fixedly connected to the anode current collector 2 by a thread. A propulsion screw 16 is provided on one side of the sealing screw 15. The propulsion screw 16 is fixedly connected to the sealing screw 15 by a thread. Through the cooperation among the cathode conductive electrode 14, the sealing screw 15 and the propulsion screw 16, the overall electrical conductivity of the device can be further improved, thereby further preventing the occurrence of leakage and short circuit during the use of the device.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A membrane electrode gas diffusion electrolytic cell, comprising a cathode current collector (1) and an anode current collector (2), characterized in that: Also includes: A gasket assembly is arranged between the cathode current collector (1) and the anode current collector (2) and is used to reduce the thickness of the entire device and can effectively increase the current of the entire device; An air inlet pipe (6) and an air outlet pipe (7) are both connected to the outside of the cathode current collector (1); A cathode liquid inlet pipe (19) and a cathode liquid outlet pipe (8) are both connected to the outside of the cathode current collector (1), and a reference electrode (20) is provided inside the cathode liquid inlet pipe (19); An anode liquid inlet pipe (9) and an anode liquid outlet pipe (10) are both connected to the outside of the anode current collector (2); A conductive component is arranged inside the anode current collector (2) and is used to improve the overall conductivity of the device, thereby preventing the device from short-circuiting; A conductive electrode lug (13) is arranged outside the anode current collector (2).

2. A membrane electrode gas diffusion electrolytic cell according to claim 1, characterized in that: The gasket assembly comprises a cathode gasket (3) arranged between a cathode current collector (1) and an anode current collector (2); a cathode electrolyte gasket (4) is arranged on one side of the cathode gasket (3); and an anode gasket (5) is arranged on one side of the cathode electrolyte gasket (4); the thickness of the cathode gasket (3), the cathode electrolyte gasket (4) and the anode gasket (5) are all 0.3 mm.

3. A membrane electrode gas diffusion electrolytic cell according to claim 2, characterized in that: The cathode current collector (1) and the anode current collector (2) are fixedly connected by a plurality of bolts (11) and nuts (12); movable holes for the bolts (11) to move are provided inside the cathode gasket (3), the cathode electrolyte gasket (4) and the anode gasket (5).

4. A membrane electrode gas diffusion electrolytic cell according to claim 1, characterized in that: The cathode current collector (1) is provided with a first serpentine groove flow channel (21), the anode current collector (2) is provided with a second serpentine groove flow channel (23), and the cathode current collector (1) is provided with a circular hole (22).

5. A membrane electrode gas diffusion electrolytic cell according to claim 2, characterized in that: The cathode gasket (3), the cathode electrolyte gasket (4) and the anode gasket (5) are all provided with rectangular holes (17) inside, and the cathode electrolyte gasket (4) is provided with a transmission flow channel (18) inside.

6. A membrane electrode gas diffusion electrolytic cell according to claim 1, characterized in that: The cathode current collector (1) is made of engineering plastic, and the anode current collector (2) is made of metal.

7. A membrane electrode gas diffusion electrolytic cell according to claim 1, characterized in that: The conductive component comprises a cathode conductive electrode (14) arranged inside the anode current collector (2); a sealing screw (15) is provided on one side of the cathode conductive electrode (14); the sealing screw (15) and the anode current collector (2) are fixedly connected via a thread; a driving screw (16) is provided on one side of the sealing screw (15); the driving screw (16) and the sealing screw (15) are fixedly connected via a thread.

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