Diaphragm mounting unit and diaphragm mounting method, electrolytic device

Abstract

The application belongs to the technical field of electrolysis equipment, and discloses a diaphragm mounting unit, a diaphragm mounting method and an electrolysis device. The diaphragm mounting unit comprises two bipolar frame assemblies. The bipolar frame assembly comprises a bipolar frame, a diaphragm, a sealing element and a magnetic attraction fixing element. The bipolar frame is provided with electrodes with opposite polarities on both sides. The diaphragm is arranged between the sealing element and the bipolar frame. The magnetic attraction fixing element is arranged in the sealing element and magnetically connected to the bipolar frame. The magnetic attraction fixing element can press the sealing element against the diaphragm. The bipolar frame of one bipolar frame assembly can be sleeved around the outer periphery of the magnetic attraction fixing element of the other bipolar frame assembly. The electrolysis device and the diaphragm mounting unit can improve the working efficiency of diaphragm mounting, avoid diaphragm falling off during installation, and improve the convenience of diaphragm mounting.

Description

Technical Field

[0001] This invention relates to the field of electrolysis equipment technology, and in particular to a diaphragm installation unit and diaphragm installation method, and an electrolysis apparatus. Background Technology

[0002] An electrolysis unit is a device that uses direct current to electrolyze an electrolyte on electrodes to produce gases or other chemical products. Because the gases produced at the cathode and anode are different, a diaphragm is needed to separate them and prevent mixing, which would affect purity. Therefore, the quality of the diaphragm installation significantly impacts the overall performance of the electrolysis unit. The diaphragm should be installed flat and without wrinkles. However, in actual production, the diaphragm is relatively flexible, making it difficult to ensure flatness during installation, and it is also prone to detachment.

[0003] Currently, the most common method for ensuring a smooth and stable installation of the diaphragm is to apply chemical agents to the electrode frame to guarantee the flatness of the diaphragm installation. For example, in the field of hydrogen energy, when using alkaline water electrolysis to produce hydrogen, the commonly used composite diaphragms are relatively soft and thin, so manual installation is often used. However, this method is inefficient, the uniformity of the diaphragm is difficult to guarantee, and the problem of diaphragm detachment still exists. In the chlor-alkali industry, the common installation method is to wet the diaphragm with a balancing solution before installation, or to spray pure water or demineralized water during manual installation to achieve diaphragm adsorption on the electrode plate. However, during the installation process, the influence of gravity and differences in the wetting effect can also cause the diaphragm to detach, seriously affecting work efficiency.

[0004] Therefore, there is an urgent need to design a diaphragm installation unit and diaphragm installation method, as well as an electrolysis device, to solve the above-mentioned technical problems. Summary of the Invention

[0005] One object of the present invention is to provide a diaphragm installation unit that can improve the working efficiency of diaphragm installation, prevent diaphragm from falling off, and improve the ease of diaphragm installation.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The diaphragm mounting unit includes two bipolar frame assemblies. Each bipolar frame assembly includes a bipolar frame, a diaphragm, a seal, and a magnetic fastener. Electrodes of opposite polarities are provided on both sides of the bipolar frame. A seal is provided between the magnetic fastener and the bipolar frame. The diaphragm is disposed between the seal and the bipolar frame. The magnetic fastener passes through the seal and is magnetically connected to the bipolar frame, and the magnetic fastener can press the seal tightly onto the diaphragm.

[0008] The bipolar frame of one of the above-mentioned bipolar frame assemblies can be fitted onto the outer periphery of the magnetic fastener of another of the above-mentioned bipolar frame assemblies.

[0009] Optionally, the sealing element has a plurality of auxiliary hole groups, the auxiliary hole groups including a first auxiliary hole and a second auxiliary hole, the first auxiliary hole and the second auxiliary hole are spaced apart, and the positions of the first auxiliary hole and the second auxiliary hole of the two bipolar frame assemblies are opposite; the magnetic fastener can pass through the first auxiliary hole and be magnetically connected to the bipolar frame; the second auxiliary hole can be fitted onto the magnetic fastener of another bipolar frame assembly.

[0010] Optionally, the bipolar frame is provided with a plurality of clearance holes, which are fitted onto the magnetic fastener. The clearance holes of the bipolar frames of the two bipolar frame assemblies are in different positions, and the clearance hole of one bipolar frame assembly is coaxially arranged with the first auxiliary hole of the other bipolar frame assembly.

[0011] Optionally, the above-mentioned magnetic fastener includes:

[0012] A magnetic attraction part, which passes through the sealing member and is magnetically connected to the bipolar frame;

[0013] A limiting part is connected to the magnetic attraction part, and the bipolar frame of one bipolar frame assembly is sleeved on the outer periphery of the limiting part of another bipolar frame assembly.

[0014] The cross-sectional area of ​​the magnetic attraction part is smaller than the cross-sectional area of ​​the limiting part to form a stepped part. The stepped part abuts against the sealing member to press the diaphragm between the sealing member and the bipolar frame.

[0015] Optionally, the length of the magnetic attraction part is A, and the thickness of the sealing element is B, where A < B.

[0016] Optionally, the length of the magnetic fastener is C, and the thickness of the bipolar frame is D, where C > 2D.

[0017] Optionally, the bipolar frame is provided with a through hole, the electrode is installed in the through hole, and the diaphragm is disposed in the through hole.

[0018] Optionally, the sealing element is provided with a loop hole corresponding to the through hole, and the bipolar frame is provided with a positioning stop along the circumference of the through hole, and the loop hole is engaged with the positioning stop.

[0019] Another objective of this invention is to provide a diaphragm installation method that can complete the installation of the diaphragm, avoid interference caused by extra structures, ensure the stability of the diaphragm, prevent the diaphragm from falling off or deforming before installation, and improve the reliability and working efficiency of the electrolysis device.

[0020] To achieve this objective, the present invention adopts the following technical solution:

[0021] The diaphragm installation method, using the diaphragm installation unit described in any of the above schemes, includes the following steps:

[0022] S1: The bipolar frames of several first bipolar frame assemblies are placed horizontally, the wetted diaphragm is laid flat and installed on the bipolar frame, the corresponding sealing member is placed and pressed on the diaphragm, and the magnetic fixing member is installed to obtain several first bipolar frame assemblies; the above operation is repeated to install the diaphragm of several second bipolar frame assemblies to obtain several second bipolar frame assemblies.

[0023] S2: Install the first bipolar frame assembly into the electrolytic cell, fit the clearance hole of the second bipolar frame assembly onto the magnetic fastener of the first bipolar frame assembly, and install the second bipolar frame assembly.

[0024] S3: Remove the magnetic fastener of the first bipolar frame assembly through the clearance hole of the second bipolar frame assembly;

[0025] S4: Fit the clearance hole of the second group of the first bipolar frame assembly onto the magnetic fastener of the first group of the second bipolar frame assembly, and install the second group of the first bipolar frame assembly.

[0026] S5: Take out the magnetic fastener of the first set of the second bipolar frame assembly through the clearance hole of the second set of the first bipolar frame assembly;

[0027] S6: Repeat steps S2 to S5 until the preset number of the first bipolar frame assembly and the second bipolar frame assembly are installed.

[0028] Another object of the present invention is to provide an electrolysis device that can improve the working efficiency of diaphragm installation, prevent diaphragm detachment, and improve the ease of diaphragm installation.

[0029] To achieve this objective, the present invention adopts the following technical solution:

[0030] The electrolysis apparatus is manufactured using the diaphragm mounting method described in any of the above schemes.

[0031] The beneficial effects of this invention are:

[0032] This invention provides a diaphragm installation unit, a diaphragm installation method, and an electrolysis device. By incorporating a magnetic fixing component, the sealing component is pressed tightly, ensuring the sealing component is securely mounted on the bipolar frame while the diaphragm is in place, preventing it from falling off after installation. When installing two bipolar frame assemblies sequentially, the magnetic fixing component facilitates alternating installation, improving the efficiency and ease of diaphragm installation. Furthermore, by using two bipolar frame assemblies, with one bipolar frame fitting over the outer periphery of the magnetic fixing component of the other, after the two bipolar frame assemblies are installed and secured, the diaphragm is already fixed, eliminating the need for further magnetic fixing. The magnetic fixing component can be directly removed without affecting the usability of the installed diaphragm installation unit. Attached Figure Description

[0033] Figure 1 This is a cross-sectional view of the diaphragm mounting unit with the magnetic fastener provided in a specific embodiment of the present invention;

[0034] Figure 2 This is a cross-sectional view of the diaphragm mounting unit disassembly magnetic fastener provided in a specific embodiment of the present invention;

[0035] Figure 3 This is a front view of the first bipolar frame assembly provided in a specific embodiment of the present invention;

[0036] Figure 4 This is a front view of the second bipolar frame assembly provided in a specific embodiment of the present invention;

[0037] Figure 5 This is a front view of the seal of the first bipolar frame assembly provided in a specific embodiment of the present invention;

[0038] Figure 6 This is a front view of the seal of the second bipolar frame assembly provided in a specific embodiment of the present invention;

[0039] Figure 7 This is a front view of the magnetic fastener provided in a specific embodiment of the present invention;

[0040] Figure 8 This is a front view of the bipolar frame of the first bipolar frame assembly provided in a specific embodiment of the present invention;

[0041] Figure 9 This is a front view of the bipolar frame of the second bipolar frame assembly provided in a specific embodiment of the present invention.

[0042] In the picture:

[0043] 1. First bipolar frame assembly; 2. Second bipolar frame assembly;

[0044] 10. Bipolar frame; 11. Clearance hole; 12. Through hole;

[0045] 20. Diaphragm;

[0046] 30. Magnetic fastener; 31. Magnetic part; 32. Limiting part; 33. Stepped part;

[0047] 40. Seal; 41. Auxiliary hole group; 411. First auxiliary hole; 412. Second auxiliary hole; 42. U-shaped hole;

[0048] 50. Hook. Detailed Implementation

[0049] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0050] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and 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. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0053] The following reference Figures 1-9 The diaphragm mounting unit, diaphragm mounting method, and electrolysis device provided by the present invention are described below.

[0054] Please refer to Figures 1 to 4 In this embodiment, the diaphragm mounting unit includes two bipolar frame assemblies. Each bipolar frame assembly includes a bipolar frame 10, a diaphragm 20, a sealing element 40, and a magnetic fixing element 30. The bipolar frame 10 is also provided with electrodes of opposite polarity on both sides. The diaphragm 20 is disposed between the sealing element 40 and the bipolar frame 10. The magnetic fixing element 30 passes through the sealing element 40 and is magnetically connected to the bipolar frame 10. The magnetic fixing element 30 can press the sealing element 40 tightly onto the diaphragm 20, thereby achieving the pressing and fixing of the diaphragm 20 and preventing the diaphragm 20 from falling off. The bipolar frame 10 of one bipolar frame assembly can be fitted onto the outer periphery of the magnetic fixing element 30 of the other bipolar frame assembly.

[0055] In this embodiment, the diaphragm installation unit, by providing a magnetic fixing member 30, can press the sealing member 40 tightly, thereby ensuring that the sealing member 40 presses the diaphragm 20 firmly onto the bipolar frame 10, preventing the diaphragm 20 from falling off after installation. When installing the two bipolar frame assemblies sequentially, the positioning of the magnetic fixing member 30 facilitates the alternating installation of the two bipolar frame assemblies, improving the efficiency and ease of diaphragm 20 installation in this diaphragm installation unit. Furthermore, by providing two bipolar frame assemblies, with the bipolar frame 10 of one bipolar frame assembly fitting around the outer periphery of the magnetic fixing member 30 of the other bipolar frame assembly, after the two bipolar frame assemblies are installed and fixed, since the diaphragm 20 is already installed and fixed, there is no need for further fixation with the magnetic fixing member 30; the magnetic fixing member 30 can be directly removed without affecting the use of the diaphragm installation unit after installation.

[0056] For example, the diaphragm mounting unit in this embodiment includes a first bipolar frame assembly 1 and a second bipolar frame assembly 2. The bipolar frame 10 of the first bipolar frame assembly 1 can be sleeved on the outer periphery of the magnetic fastener 30 of the second bipolar frame assembly 2, and the bipolar frame 10 of the second bipolar frame assembly 2 can be sleeved on the outer periphery of the magnetic fastener 30 of the first bipolar frame assembly 1.

[0057] Optionally, the seal 40 can be made of commonly used sealing materials, and no specific limitation is made here.

[0058] Please refer to Figure 5 and Figure 6In this embodiment, the sealing member 40 has a plurality of auxiliary hole groups 41, the auxiliary hole group 41 including a first auxiliary hole 411 and a second auxiliary hole 412, the first auxiliary hole 411 and the second auxiliary hole 412 are spaced apart, and the positions of the first auxiliary hole 411 and the second auxiliary hole 412 of the two bipolar frame assemblies are opposite; the magnetic fastener 30 can pass through the first auxiliary hole 411 and be magnetically connected to the bipolar frame 10, that is, the first auxiliary hole 411 can position and install the magnetic fastener 30; the second auxiliary hole 412 can be fitted onto the magnetic fastener 30 of another bipolar frame assembly, that is, the second auxiliary hole 412 can avoid the magnetic fastener 30 of another bipolar plate assembly, so as to facilitate the removal of the magnetic fastener 30 of the other bipolar plate assembly.

[0059] For example, in this embodiment, there are four auxiliary hole groups 41, which are respectively disposed at the four corners of the sealing member 40 to achieve better fixation of the diaphragm 20.

[0060] Optionally, the distance between the first auxiliary hole 411 and the second auxiliary hole 412 in this embodiment is not specifically limited, as long as they do not affect each other.

[0061] For example, the first auxiliary hole 411 of the first bipolar frame assembly 1 is opened inside the second auxiliary hole 412, and the distance between the first auxiliary hole 411 and the second auxiliary hole 412 is 50mm, and the first auxiliary hole 411 of the second bipolar frame assembly 2 is opened outside the second auxiliary hole 412, and the distance between the two is 50mm; thus, the assembly of the diaphragm mounting unit can be realized.

[0062] Furthermore, the seal 40 has a U-shaped structure, which only needs to meet the requirements of pressing the diaphragm 20 and sealing performance.

[0063] Specifically, the seal 40 is provided with a loop hole 42, which is used to avoid the diaphragm 20 and the electrode.

[0064] Optionally, the cross-sectional area of ​​the diaphragm 20 is larger than the opening area of ​​the orifice 42, so as to press the diaphragm 20 between the seal 40 and the bipolar frame 10.

[0065] Please refer to Figure 7 In this embodiment, the magnetic fastener 30 includes a magnetic fastening part 31 and a limiting part 32. Specifically, the magnetic fastening part 31 passes through the sealing member 40 and is magnetically connected to the bipolar frame 10. The magnetic fastening part 31 is provided to fix the magnetic connection between the magnetic fastener 30 and the bipolar frame 10.

[0066] Furthermore, the limiting part 32 is connected to the magnetic suction part 31. The bipolar frame 10 of one bipolar frame assembly is sleeved on the outer periphery of the limiting part 32 of another bipolar frame assembly. The limiting part 32 is provided to connect the other bipolar frame assembly, which can realize the positioning of the other bipolar frame assembly, and at the same time facilitates the picking and putting of the magnetic suction fastener 30.

[0067] Furthermore, the cross-sectional area of ​​the magnetic suction part 31 is smaller than that of the limiting part 32 to form a stepped part 33. The stepped part 33 abuts against the sealing member 40. The magnetic suction fixing member 30 can press the sealing member 40 so that the sealing member 40 can press and fix the diaphragm 20 onto the bipolar frame 10.

[0068] Specifically, the magnetic suction part 31 is connected to the first auxiliary hole 411, and the limiting part 32 is connected to the second auxiliary hole 412, so as to realize the positioning of the magnetic suction fastener 30 by the first auxiliary hole 411 and the avoidance of the magnetic suction fastener 30 by the second auxiliary hole 412.

[0069] Optionally, the opening area of ​​the first auxiliary hole 411 is smaller than the opening area of ​​the second auxiliary hole 412. This setting also distinguishes the first auxiliary hole 411 and the second auxiliary hole 412, preventing operators from assembling the magnetic fastener 30 incorrectly and improving the error prevention performance of the diaphragm installation unit.

[0070] Furthermore, the length of the magnetic suction part 31 is A, and the thickness of the sealing member 40 is B, A < B, so that the sealing member 40 is compressed, which can not only ensure the sealing performance of the sealing member 40, but also provide a certain clamping force to the diaphragm 20 to press and fix the diaphragm 20 and prevent the diaphragm 20 from falling off.

[0071] Optionally, A satisfies the compression amount of seal 40, thereby improving the sealing performance of seal 40. It should be noted that the compression amount of seal 40 is the amount of compression required for seal 40 to meet its sealing performance.

[0072] Furthermore, the length of the magnetic fastener 30 is C, and the thickness of the bipolar frame 10 is D, where C > 2D. This ensures that when the magnetic fastener 30 is removed after both bipolar frame assemblies are installed, there is an exposed portion of the magnetic fastener 30, which facilitates the disassembly of the magnetic fastener 30.

[0073] Optionally, the cross-sectional shape of the magnetic fastener 30 can be a circular structure or a polygonal structure, both of which can achieve the function of fixing the diaphragm 20 of the magnetic fastener 30. No specific limitation is made here.

[0074] For example, the magnetic fastener 30 in this embodiment has a circular cross-sectional shape, which eliminates the need for alignment and facilitates the installation of the magnetic fastener 30.

[0075] Please refer to Figure 8 and Figure 9 In this embodiment, the bipolar frame 10 is provided with a through hole 12, an electrode is installed in the first through hole 12, and a diaphragm 20 is covered by the through hole 12. The through hole 12 is used to install the electrode so that the electrode is set in two adjacent bipolar frame assemblies. At the same time, the diaphragm 20 isolates the two adjacent electrodes to form an independent electrode installation space so that the two electrodes will not interfere with each other.

[0076] Furthermore, the sealing element 40 has a U-shaped hole 42 corresponding to the through hole 12. The bipolar frame 10 has a positioning stop along the circumference of the through hole 12. The U-shaped hole 42 is engaged with the positioning stop to realize the positioning and installation of the sealing element 40 by the positioning stop. When installing the sealing element 40, the positioning and installation of the sealing element 40 can be realized by installing the U-shaped hole 42 of the sealing element 40 at the positioning stop, which improves the assembly speed of the two.

[0077] Furthermore, the bipolar frame 10 has several clearance holes 11, which are fitted onto the magnetic fastener 30. The clearance holes 11 of the bipolar frames 10 of the two bipolar frame assemblies are in different positions. The clearance hole 11 of one bipolar frame assembly is coaxially arranged with the first auxiliary hole 411 of the other bipolar frame assembly. The clearance holes 11 are provided to avoid the magnetic fastener of the adjacent bipolar frame assembly, so that the magnetic fastener 30 can extend out and be easily removed.

[0078] For example, the clearance hole 11 of the first bipolar frame assembly 1 is disposed outside the clearance hole 11 of the second bipolar frame assembly 2, corresponding to the position of the first auxiliary hole 411.

[0079] Optionally, the opening area of ​​the clearance hole 11 is α, the opening area of ​​the first auxiliary hole 411 is β, and the opening area of ​​the second auxiliary hole 412 is γ, where α≥γ>β, which facilitates the installation of the magnetic fastener and provides a certain installation tolerance.

[0080] Furthermore, hooks 50 are provided on both sides of the bipolar frame 10. The hooks 50 can be installed in the tank inside the electrolysis device to realize the installation of the bipolar frame assembly.

[0081] This embodiment also provides a diaphragm installation method. By using the diaphragm installation unit described in any of the above schemes, the diaphragm 20 is prevented from falling off, and the reliability and efficiency of the diaphragm 20 installation are improved.

[0082] The diaphragm installation method includes the following steps:

[0083] S1: A plurality of bipolar frames 10 of the first bipolar frame assembly 1 are placed horizontally. A wetted diaphragm 20 is laid flat and installed on the bipolar frame 10. A corresponding sealing element 40 is placed and pressed onto the diaphragm 20. A magnetic fixing element 30 is then installed, resulting in a plurality of first bipolar frame assemblies 1. The above operation is repeated to install the diaphragms 20 of a plurality of second bipolar frame assemblies 2, resulting in a plurality of second bipolar frame assemblies 2. This step enables the assembly of each bipolar frame assembly.

[0084] Optionally, the first bipolar frame assembly 1 and the second bipolar frame assembly 2 can be installed simultaneously on two production lines to improve the production efficiency of the diaphragm 20 installation.

[0085] S2: Install the first bipolar frame assembly 1 onto the electrolytic cell, fit the clearance hole 11 of the second bipolar frame assembly 2 onto the magnetic fastener 30 of the first bipolar frame assembly 1, and install the second bipolar frame assembly 2.

[0086] Specifically, the first bipolar frame assembly 1 can be installed by attaching the hook 50 to the electrolytic cell body. Then, the second bipolar frame assembly 2 is positioned by using the first bipolar frame assembly 1, and the hook 50 of the second bipolar frame assembly 2 is then attached to the electrolytic cell body to complete the installation of the second bipolar frame assembly 2.

[0087] S3: Remove the magnetic fastener 30 of the first bipolar frame assembly 1 through the clearance hole 11 of the second bipolar frame assembly 2. After the installation of the second bipolar frame assembly 2 is completed, the magnetic fastener 30 can be removed through the clearance hole 11 of the second bipolar frame 10.

[0088] S4: Fit the clearance hole 11 of the second set of first bipolar frame assembly 1 onto the magnetic fastener 30 of the second bipolar frame assembly 2, and install the second set of first bipolar frame assembly 1. After completing the installation of one set of diaphragm mounting units, position the next set of first bipolar frame assembly 1 using the magnetic fastener 30 and install it using the hook 50.

[0089] S5: Take out the magnetic fastener 30 of the second bipolar frame assembly 2 through the clearance hole 11 of the second group of the first bipolar frame assembly 1.

[0090] After the installation of the second set of first bipolar frame assemblies 1 is completed, the magnetic fastener 30 of the second set of second bipolar frame 10 can be removed through the clearance hole 11 of the second set of first bipolar frame assemblies 1.

[0091] S6: Repeat steps S2 to S5 until the preset number of first bipolar frame assemblies 1 and second bipolar frame assemblies 2 are installed. By continuously repeating steps S2 to S5 and stacking the preset number of diaphragm mounting units, the diaphragm 20 of the electrolysis device can be installed.

[0092] The diaphragm installation method involves fixing the diaphragm 20 to the bipolar frame assembly using magnetic fasteners 30, then alternately positioning and installing the first bipolar frame assembly 1 and the second bipolar frame assembly 2, and finally removing the corresponding magnetic fasteners 30. This method not only completes the installation of the diaphragm 20 without creating unnecessary structures that could cause interference, but also ensures the stability of the diaphragm 20, preventing it from falling off or deforming before installation, thus improving the reliability of the electrolysis device.

[0093] This embodiment also provides an electrolysis device, which is manufactured using the diaphragm mounting method described in any of the above-mentioned schemes. During the assembly of this electrolysis device, the two bipolar frame assemblies are installed alternately in sequence, that is, the first bipolar frame assembly 1 and the second bipolar frame assembly 2 are installed in an overlapping manner. The positioning by the magnetic fixing member 30 facilitates the alternating installation of the two bipolar frame assemblies, improving the efficiency and ease of installation of the diaphragm 20 in this diaphragm mounting unit. Furthermore, after the next bipolar frame assembly is installed, the magnetic fixing member 30 of the previous bipolar frame assembly can be removed without affecting the use of the diaphragm mounting unit after installation. The installation and removal of the magnetic fixing member 30 are performed sequentially until the diaphragm mounting unit is fully installed.

[0094] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A diaphragm mounting unit, characterized in that, The device includes two bipolar frame assemblies, each comprising a bipolar frame (10), a diaphragm (20), a seal (40), and a magnetic fastener (30). The bipolar frame (10) is further provided with electrodes of opposite polarity on both sides. The diaphragm (20) is disposed between the seal (40) and the bipolar frame (10). The magnetic fastener (30) passes through the seal (40) and is magnetically connected to the bipolar frame (10), and the magnetic fastener (30) can press the seal (40) tightly onto the diaphragm (20). The bipolar frame (10) of one of the bipolar frame assemblies can be fitted onto the outer periphery of the magnetic fastener (30) of another bipolar frame assembly.

2. The diaphragm mounting unit according to claim 1, characterized in that, The sealing element (40) has a plurality of auxiliary hole groups (41), the auxiliary hole group (41) includes a first auxiliary hole (411) and a second auxiliary hole (412), the first auxiliary hole (411) and the second auxiliary hole (412) are spaced apart, and the positions of the first auxiliary hole (411) and the second auxiliary hole (412) of the two bipolar frame assemblies are opposite; the magnetic fastener (30) can pass through the first auxiliary hole (411) and be magnetically connected to the bipolar frame (10); the second auxiliary hole (412) can be fitted onto the magnetic fastener (30) of another bipolar frame assembly.

3. The diaphragm mounting unit according to claim 2, characterized in that, The bipolar frame (10) has a plurality of clearance holes (11), which are fitted onto the magnetic fastener (30). The clearance holes (11) of the bipolar frames (10) of the two bipolar frame assemblies are in different positions. The clearance hole (11) of one bipolar frame assembly is coaxially arranged with the first auxiliary hole (411) of the other bipolar frame assembly.

4. The diaphragm mounting unit according to claim 1, characterized in that, The magnetic fastener (30) includes: A magnetic suction part (31) is inserted through the sealing member (40) and magnetically connected to the bipolar frame (10). The limiting part (32) is connected to the magnetic suction part (31), and the bipolar frame (10) of one bipolar frame assembly is sleeved on the outer periphery of the limiting part (32) of another bipolar frame assembly; The cross-sectional area of ​​the magnetic suction part (31) is smaller than that of the limiting part (32) to form a stepped part (33), which abuts against the sealing member (40) to press the diaphragm (20) between the sealing member (40) and the bipolar frame (10).

5. The diaphragm mounting unit according to claim 4, characterized in that, The length of the magnetic suction part (31) is A, and the thickness of the sealing element (40) is B, where A < B.

6. The diaphragm mounting unit according to claim 4, characterized in that, The length of the magnetic fastener (30) is C, and the thickness of the bipolar frame (10) is D, where C > 2D.

7. The diaphragm mounting unit according to claim 1, characterized in that, The bipolar frame (10) is provided with a through hole (12), the electrode is installed in the through hole (12), and the diaphragm (20) covers the through hole (12).

8. The diaphragm mounting unit according to claim 7, characterized in that, The sealing element (40) is provided with a loop hole (42) corresponding to the through hole (12), and the bipolar frame (10) is provided with a positioning stop along the circumference of the through hole (12), and the loop hole (42) is engaged with the positioning stop.

9. A diaphragm installation method, characterized in that, Using the diaphragm mounting unit as described in claim 3, the diaphragm mounting method includes the following steps: S1: Horizontally place the bipolar frames (10) of several first bipolar frame assemblies (1), lay the wetted diaphragm (20) flat on the bipolar frame (10), place the corresponding sealing member (40) on the diaphragm (20), and install the magnetic fixing member (30) to obtain several first bipolar frame assemblies (1); repeat the above operation to install the diaphragm (20) of several second bipolar frame assemblies (2) to obtain several second bipolar frame assemblies (2); S2: Install the first bipolar frame assembly (1) on the electrolytic cell, put the clearance hole (11) of the second bipolar frame assembly (2) onto the magnetic fastener (30) of the first bipolar frame assembly (1), and install the second bipolar frame assembly (2); S3: Take out the magnetic fastener (30) of the first bipolar frame assembly (1) through the clearance hole (11) of the second bipolar frame assembly (2). S4: Place the clearance hole (11) of the second group of the first bipolar frame assembly (1) onto the magnetic fastener (30) of the first group of the second bipolar frame assembly (2), and install the second group of the first bipolar frame assembly (1); S5: Take out the magnetic fastener (30) of the first group of the second bipolar frame assembly (2) through the clearance hole (11) of the second group of the first bipolar frame assembly (1). S6: Repeat steps S2 to S5 until the preset number of the first bipolar frame assembly (1) and the second bipolar frame assembly (2) are installed.

10. An electrolysis apparatus, characterized in that, It is manufactured using the diaphragm installation method as described in claim 9.

Images