Fused salt electrolysis flange and electrolysis device with same

Abstract

The utility model provides a fused salt electrolysis flange and an electrolyzer with the same, the fused salt electrolysis flange comprises a flange seat, the flange seat is provided with a mounting port, the flange seat is provided with a first end and a second end which are oppositely arranged, and the second end of the flange seat is used for being mounted on an electrolytic bath; the flange plate covers the first end of the flange seat and is detachably connected with the flange seat, and the flange plate is used for sealing the mounting opening; the first fixing pipe and the second fixing pipe are both arranged at the end, away from the electrolytic bath, of the flange plate, the first fixing pipe and the second fixing pipe communicate with the mounting opening, the first fixing pipe is used for penetrating through the solid conductor film, and the second fixing pipe is used for penetrating through the anode. According to the technical scheme provided by the utility model, the problem that the separation efficiency of the solid conductor film is reduced due to the fact that the solid conductor film cannot be fixed by the flange and is easy to damage in the prior art can be solved.

Description

Technical Field

[0001] This utility model relates to the field of chemical manufacturing technology, and more specifically, to a molten salt electrolysis flange and an electrolysis device having electricity thereon. Background Technology

[0002] In membrane separation-molten salt electrolysis units, flanges are key components connecting various parts, and their performance directly affects the overall operating efficiency and safety of the unit. However, in existing technologies, traditional flanges cannot accurately position the solid conductor membrane in membrane separation technology, causing the solid conductor membrane to easily shift or deform under high temperature and chemical corrosion environments, resulting in reduced separation efficiency and affecting electrolysis efficiency and product purity. Utility Model Content

[0003] This invention provides a molten salt electrolysis flange and an electrolysis device with electricity thereon, to solve the problem in the prior art that the flange cannot fix the solid conductor film, making it susceptible to damage and resulting in a reduction in the separation efficiency of the solid conductor film.

[0004] According to one aspect of the present invention, a molten salt electrolysis flange is provided, comprising: a flange seat having an installation port, the flange seat having a first end and a second end disposed opposite to each other, the second end of the flange seat being used for mounting on an electrolytic cell; a flange plate covering the first end of the flange seat and detachably connected to the flange seat, the flange plate being used for sealing the installation port; a first fixing pipe and a second fixing pipe, both disposed at the end of the flange plate away from the electrolytic cell, the first fixing pipe and the second fixing pipe respectively communicating with the installation port, the first fixing pipe being used for passing through a solid conductor membrane, and the second fixing pipe being used for passing through an anode.

[0005] Furthermore, the inner diameter of the first fixing tube is larger than the inner diameter of the second fixing tube.

[0006] Furthermore, the molten salt electrolysis flange also includes sleeves. Sleeves are provided on both the first fixed pipe and the second fixed pipe. The sleeves are threadedly connected to the ends of the first fixed pipe and the second fixed pipe that are away from the flange. The first fixed pipe and the corresponding sleeve cooperate to fix the position of the solid conductor film on the flange, and the second fixed pipe and the corresponding sleeve cooperate to fix the position of the anode on the flange.

[0007] Furthermore, a first annular sealing ring is provided inside the sleeve.

[0008] Furthermore, the molten salt electrolysis flange also includes a third fixing pipe, which is located at the end of the flange away from the electrolysis cell. The third fixing pipe is connected to the mounting port and is used to install a temperature sensor.

[0009] Furthermore, there are multiple second fixing pipes, the axis of the first fixing pipe coincides with the axis of the flange, and the multiple second fixing pipes are arranged in a ring at intervals around the outer periphery of the first fixing pipe.

[0010] Furthermore, multiple second fixing tubes are located on one side of the first fixing tube, and a third fixing tube is located on the other side of the first fixing tube.

[0011] Furthermore, a second annular sealing ring is provided inside the mounting port, which is used to seal the gap between the mounting port and the electrolytic cell.

[0012] Furthermore, the molten salt electrolysis flange also includes an inlet pipe and an outlet pipe, one end of which is fixedly connected to the flange, and both the inlet pipe and the outlet pipe are connected to the mounting port.

[0013] According to another aspect of the present invention, an electrolysis apparatus is provided, the electrolysis apparatus including an electrolysis cell and a molten salt electrolysis flange, the electrolysis cell having an opening and an electrolysis chamber that are interconnected, the molten salt electrolysis flange being disposed at the opening, and the molten salt electrolysis flange being the aforementioned molten salt electrolysis flange.

[0014] Applying the technical solution of this utility model, the flange seat is installed on the electrolytic cell, and the flange plate is detachably connected to the first end of the flange seat, making flange assembly and disassembly more convenient. The end of the flange plate away from the electrolytic cell is provided with a first fixing pipe and a second fixing pipe communicating with the installation port. The first fixing pipe is used to pass through the solid conductor membrane. By setting the first fixing pipe, the solid conductor membrane can not only be safely and securely fixed inside the electrolytic cell, but also facilitate installation and disassembly, simplifying the maintenance process of the solid conductor membrane. The second fixing pipe is used to pass through the anode to ensure the stability of the anode. Through the above structural design, this embodiment can achieve convenient installation and disassembly while effectively fixing the solid conductor membrane and anode, preventing damage, thereby maintaining the high performance of the solid conductor membrane and anode in the experimental environment. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure of a molten salt electrolysis flange provided in an embodiment of the present invention is shown;

[0017] Figure 2 It shows Figure 1 A cross-sectional view of the molten salt electrolysis flange;

[0018] Figure 3 A simplified structural diagram of an electrolysis apparatus provided in another embodiment of the present invention is shown.

[0019] The above figures include the following reference numerals:

[0020] 10. Flange seat; 101. First end; 102. Second end;

[0021] 11. Second annular sealing ring;

[0022] 12. Cooling channel;

[0023] 20. Flange;

[0024] 21. First fixed tube;

[0025] 22. Second fixed tube;

[0026] 23. Third fixed tube;

[0027] 30. Solid conductor film;

[0028] 41. Cathode;

[0029] 42. Anode;

[0030] 50. Temperature sensor;

[0031] 60. Sleeve;

[0032] 61. First annular sealing ring;

[0033] 71. Intake pipe; 72. Exhaust pipe;

[0034] 01. Electrolytic cell. Detailed Implementation

[0035] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0036] like Figures 1 to 2As shown, an embodiment of this utility model provides a molten salt electrolysis flange, which includes a flange seat 10, a flange plate 20, a first fixing pipe 21, and a second fixing pipe 22. The flange seat 10 has an installation port and has a first end 101 and a second end 102 disposed opposite to each other. The second end 102 of the flange seat 10 is used for installation on the electrolytic cell 01. The flange plate 20 covers the first end 101 of the flange seat 10 and is detachably connected to the flange seat 10. The flange plate 20 is used to seal the installation port. The first fixing pipe 21 and the second fixing pipe 22 are both disposed at the end of the flange plate 20 away from the electrolytic cell 01. The first fixing pipe 21 and the second fixing pipe 22 are respectively connected to the installation port. The first fixing pipe 21 is used to pass through the solid conductor film 30, and the second fixing pipe 22 is used to pass through the anode 42.

[0037] Applying the technical solution of this utility model, the flange seat 10 is installed on the electrolytic cell 01, and the flange 20 is detachably connected to the first end 101 of the flange seat 10, making flange assembly and disassembly more convenient. The end of the flange 20 away from the electrolytic cell 01 is provided with a first fixing pipe 21 and a second fixing pipe 22 communicating with the installation port. The first fixing pipe 21 is used to pass through the solid conductor membrane 30. By setting the first fixing pipe 21, the solid conductor membrane 30 can not only be safely and securely fixed inside the electrolytic cell 01, but also facilitates installation and disassembly, simplifying the maintenance process of the solid conductor membrane 30. The second fixing pipe 22 is used to pass through the anode 42 to ensure the stability of the anode 42. Through the above structural design, this embodiment can achieve convenient installation and disassembly while effectively fixing the solid conductor membrane 30 and the anode 42, preventing damage, thereby maintaining the high performance of the solid conductor membrane 30 and the anode 42 in the experimental environment.

[0038] Specifically, in this application, the solid conductor film 30 is a cylindrical structure with one end closed, and the electrodes include an anode 42 and a cathode 41. The anode 42 is inserted into the second fixed tube 22, and the cathode 41 is inserted into the cylindrical body of the solid conductor film 30.

[0039] Specifically, the flange seat 10 is a cylindrical structure with openings at both ends. The first end 101 is an open end for detachable connection with the flange 20, and the second end 102 is suitable for installation on the electrolytic cell 01 to form a tight connection.

[0040] Specifically, the flange seat 10, flange 20, first fixed pipe 21 and second fixed pipe 22 are all made of high temperature and corrosion resistant materials, such as stainless steel 316L or titanium alloy, to enhance the stability and durability of the overall structure.

[0041] The first fixing tube 21 and the second fixing tube 22 can be installed through the flange 20, which can extend the limiting area between the first fixing tube 21 and the solid conductor film 30, and the limiting area between the second fixing tube 22 and the anode 42, so as to better fix the position of the solid conductor film 30 and the anode 42 on the flange 20.

[0042] Furthermore, the inner diameter of the first fixing tube 21 is larger than the inner diameter of the second fixing tube 22. In this embodiment, the first fixing tube 21 is used to pass through the solid conductor film 30, and the second fixing tube 22 is used to pass through the anode 42. Since the solid conductor film 30 has a certain thickness and rigidity, the larger inner diameter of the first fixing tube 21 can provide sufficient space and support for the solid conductor film 30, ensuring the structural stability and material compatibility of the solid conductor film 30 in the experimental environment, thereby avoiding problems such as deformation and damage to the solid conductor film 30.

[0043] Specifically, the inner diameter of the first fixing tube 21 can be set to 15mm to 30mm, such as 20mm, 25mm and 30mm. The inner diameter of the second fixing tube 22 can be set to 6mm to 10mm, such as 7mm, 8mm and 9mm.

[0044] Furthermore, the molten salt electrolysis flange also includes a sleeve 60. The first fixing pipe 21 and the second fixing pipe 22 are both provided with sleeves 60. The sleeves 60 are threaded to the end of the first fixing pipe 21 that is away from the flange 20, and the sleeves 60 can be threaded to the end of the second fixing pipe 22 that is away from the flange 20. The first fixing pipe 21 and the corresponding sleeve 60 cooperate to fix the position of the solid conductor film 30 on the flange 20, and the second fixing pipe 22 and the corresponding sleeve 60 cooperate to fix the position of the anode 42 on the flange 20.

[0045] In this embodiment, the sleeve 60 is threaded to the end of the first fixing tube 21 furthest from the flange 20, and the second fixing tube 22 furthest from the flange 20. By adjusting the threaded connection depth between the sleeve 60 and the first fixing tube 21, appropriate pressure is applied to further fix the solid conductor membrane 30 in a preset position, ensuring that the solid conductor membrane 30 will not move due to thermal expansion or pressure changes under experimental conditions, maintaining its precise position. The second fixing tube 22 is similar to the first fixing tube 21, and its main function is to fix the anode 42. The threaded connection between the sleeve 60 and the first fixing tube 21 and the second fixing tube 22 allows for easy disassembly and replacement of the solid conductor membrane 30 and the anode 42 during maintenance without damaging the entire flange structure, significantly reducing maintenance costs and downtime.

[0046] Furthermore, a first annular sealing ring 61 is provided inside the sleeve 60. In this embodiment, the inner diameter of the first annular sealing ring 61 is slightly smaller than the diameter of the inner hole of the sleeve 60, so that the first annular sealing ring 61 can form a tightly fitting sealing surface inside the sleeve 60, and form a sealed contact with the surface of the solid conductor film 30 or the anode 42 under the action of pre-tightening force, so as to ensure that the device is always in a sealed state during the experiment, preventing electrolyte leakage or the entry of external impurities.

[0047] Furthermore, the molten salt electrolysis flange also includes a third fixing pipe 23. The third fixing pipe 23 is located at the end of the flange 20 furthest from the electrolytic cell 01, and is connected to the mounting port. The third fixing pipe 23 is used to pass through the temperature sensor 50. In this embodiment, the third fixing pipe 23 is located at the end of the flange 20 furthest from the electrolytic cell 01, and is connected to the mounting port to ensure that the temperature sensor 50 can directly contact or monitor the temperature from inside the electrolytic cell 01.

[0048] Specifically, the inner diameter of the third fixing tube 23 is designed to be slightly larger than the diameter of the temperature sensor 50, ensuring that the temperature sensor 50 can be inserted smoothly, while the sealing performance or structural stability of the flange will not be affected by the excessive diameter of the third fixing tube 23.

[0049] Furthermore, there are multiple second fixing tubes 22, with the axis of the first fixing tube 21 coinciding with the axis of the flange 20, and the multiple second fixing tubes 22 are arranged in a ring at intervals around the outer periphery of the first fixing tube 21. In this embodiment, the multiple second fixing tubes 22 surround the outer periphery of the first fixing tube 21, forming a uniformly distributed ring array.

[0050] Specifically, the number of second fixing tubes 22 is usually set to 3-5, for example, in this embodiment, it is set to 3. The first one is used to pass through the anode 42 in the electrode, the second one is used to pass through the reference electrode, and the third one is in a spare state. This allows for adjustment of the number of second fixing tubes 22 used according to actual needs, so as to adapt to different operating conditions and scales, thereby realizing the modularity and flexibility of the device.

[0051] Furthermore, multiple second fixing tubes 22 are located on one side of the first fixing tube 21, and a third fixing tube 23 is located on the other side of the first fixing tube 21. In this embodiment, multiple second fixing tubes 22 are arranged on one side of the first fixing tube 21, and these second fixing tubes 22 are spaced apart from each other to ensure a uniform electric field inside the electrolytic cell 01 and improve electrolysis efficiency. A third fixing tube 23 for mounting a temperature sensor 50 is arranged on the other side of the first fixing tube 21 to monitor key parameters in the electrolysis process. By setting the third fixing tube 23 on the other side of the first fixing tube 21, interference from monitoring equipment to the anode 42 or solid conductor film 30 can be avoided, while providing convenience for direct monitoring of the internal environment of the electrolytic cell 01, which helps to adjust electrolysis parameters in real time and optimize the electrolysis process. The above layout not only makes full use of the available space of the flange 20, but also optimizes the distribution of electrodes inside the electrolytic cell 01, thereby improving electrolysis efficiency and product purity.

[0052] Furthermore, a second annular sealing ring 11 is provided inside the mounting port, which is used to seal the gap between the mounting port and the electrolytic cell 01. In this embodiment, a sealing groove can be provided on the inner wall of the mounting port of the flange seat 10 to accommodate the second annular sealing ring 11.

[0053] Specifically, during the experiment, the flange and electrolytic cell 01 may undergo thermal expansion at high temperatures, resulting in minute gaps at the connection. To compensate for this thermal expansion, the second annular sealing ring 11 is designed with a certain elastic margin. When thermal expansion occurs, the sealing ring can adapt to the gap change under elastic action and maintain sealing performance.

[0054] Specifically, a cooling circulation unit is provided on the outer wall of the flange seat 10 and the flange 20. The cooling circulation unit includes a cooling channel 12, which is arranged in a ring on the outer wall of the flange seat 10 and the flange 20 respectively. It is used to maintain the temperature of the flange, the first annular sealing ring 61 and the second annular sealing ring 11 within a safe range and ensure their stable performance, avoid deformation due to thermal expansion and extend the service life of the flange.

[0055] Furthermore, the molten salt electrolysis flange also includes an inlet pipe 71 and an outlet pipe 72. One end of the inlet pipe 71 and the outlet pipe 72 are fixedly connected to the flange 20, and both the inlet pipe 71 and the outlet pipe 72 are connected to the mounting port. In this embodiment, by providing the inlet pipe 71 and the outlet pipe 72, it is convenient to manage the intake and exhaust of air, and it is also convenient to connect external equipment to the flange.

[0056] Specifically, in the high-purity lithium metal preparation experiment, the inlet pipe 71 is used to introduce inert gas or cooling gas, and the outlet pipe 72 is used to discharge by-product gas from the electrolysis process or return gas for gas circulation. Due to the gas flow efficiency and the symmetry of the flange structure, the inlet pipe 71 and the outlet pipe 72 can be axially symmetrically arranged on the flange 20 to promote uniform gas distribution and effective circulation.

[0057] Specifically, the diameters of the intake pipe 71 and the exhaust pipe 72 are between 6 and 10 mm, such as 8 mm and 9 mm.

[0058] In this embodiment, the inlet pipe 71 is connected to an external gas source, such as an inert gas cylinder or a gas circulation device, to provide the gaseous environment required for electrolysis. The outlet pipe 72 is connected to a gas treatment or recovery system to collect and treat the gas generated during electrolysis, in order to meet the requirements of energy conservation and emission reduction.

[0059] like Figure 3 As shown, another embodiment of this utility model provides an electrolysis device, which includes an electrolytic cell 01 and a molten salt electrolysis flange. The electrolytic cell 01 has an opening and an electrolysis chamber that are interconnected. The molten salt electrolysis flange is disposed at the opening and is the aforementioned molten salt electrolysis flange. The installation of the molten salt electrolysis flange at the opening of the electrolytic cell 01 ensures a tight fit and seal between the molten salt electrolysis flange and the electrolytic cell 01, enhancing the stability and safety of the experimental process.

[0060] Specifically, the electrolytic cell 01 is provided with an interconnected opening and an electrolytic chamber, wherein the electrolytic chamber is used to accommodate the mixed molten salt, the anode 42 and the solid conductor film 30, etc., and the opening is used to install the molten salt electrolysis flange for easy connection with external equipment.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0062] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0063] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0064] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0065] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0066] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fused salt electrolysis flange characterized by, The molten salt electrolysis flange comprises: A flange base (10) having a mounting port, the flange base (10) having oppositely arranged first end (101) and second end (102), the second end (102) of the flange base (10) is used for mounting on the electrolytic cell (01); A flange plate (20) is arranged on the first end (101) of the flange base (10) and is detachably connected with the flange base (10), the flange plate (20) is used for sealing the mounting port; A first fixed pipe (21) and a second fixed pipe (22) are arranged at one end of the flange plate (20) away from the electrolytic cell (01), the first fixed pipe (21) and the second fixed pipe (22) are respectively communicated with the mounting port, the first fixed pipe (21) is used for penetrating the solid conductor film (30) and the cathode (41), and the second fixed pipe (22) is used for penetrating the anode (42).

2. The fused salt electrolytic flange of claim 1, wherein, The inner hole diameter of the first fixed pipe (21) is larger than the inner hole diameter of the second fixed pipe (22).

3. The fused salt electrolytic flange of claim 1, wherein, The molten salt electrolysis flange further comprises a sleeve (60), the first fixed pipe (21) and the second fixed pipe (22) are provided with the sleeve (60), the sleeve (60) is correspondingly screwed with one end of the first fixed pipe (21) away from the flange plate (20) and one end of the second fixed pipe (22) away from the flange plate (20), the first fixed pipe (21) cooperates with the corresponding sleeve (60) to fix the position of the solid conductor film (30) on the flange plate (20), and the second fixed pipe (22) cooperates with the corresponding sleeve (60) to fix the position of the anode (42) on the flange plate (20).

4. The fused salt electrolytic flange of claim 3, wherein, The sleeve (60) is provided with a first annular sealing ring (61) inside.

5. The fused salt electrolytic flange of claim 1, wherein, The molten salt electrolysis flange further comprises a third fixed pipe (23), the third fixed pipe (23) is arranged at one end of the flange plate (20) away from the electrolytic cell (01), the third fixed pipe (23) is communicated with the mounting port, and the third fixed pipe (23) is used for penetrating the temperature sensor (50).

6. The fused salt electrolytic flange of claim 5, wherein, The second fixed pipe (22) has a plurality of, the axis of the first fixed pipe (21) coincides with the axis of the flange plate (20), and a plurality of the second fixed pipe (22) is arranged annularly and spaced apart on the outer periphery of the first fixed pipe (21).

7. The fused salt electrolytic flange of claim 6, wherein, A plurality of the second fixed pipe (22) is located on one side of the first fixed pipe (21), and the third fixed pipe (23) is located on the other side of the first fixed pipe (21).

8. The fused salt electrolytic flange of claim 1, wherein, A second annular sealing ring (11) is arranged in the mounting port, and the second annular sealing ring (11) is used for sealing the gap between the mounting port and the electrolytic cell (01).

9. The fused salt electrolytic flange of claim 1, wherein, The molten salt electrolysis flange further comprises: An air inlet pipe (71) and an air outlet pipe (72), one end of the air inlet pipe (71) and the air outlet pipe (72) is fixedly connected on the flange plate (20), and the air inlet pipe (71) and the air outlet pipe (72) are communicated with the mounting port.

10. An electrolysis device, characterized by The electrolysis device comprises an electrolytic cell (01) and a molten salt electrolysis flange, the electrolytic cell (01) has an opening and an electrolysis cavity in communication with each other, and the molten salt electrolysis flange is arranged at the opening, and the molten salt electrolysis flange is the molten salt electrolysis flange in any one of claims 1 to 9.

Images