A detection and leveling tool for a bipolar plate assembly of an electrolytic cell

Abstract

The utility model belongs to the field of detection and leveling tool of electrolytic cell bipolar plate assembly, specifically a kind of detection and leveling tool of electrolytic cell bipolar plate assembly, including tool rest, the both sides of tool rest are fixedly connected with first sliding rail, the surface of first sliding rail is slidably connected with sliding block;Through the first sliding rail, sliding block and connecting rod of tool rest both sides, leveling assembly whole translation can be driven, and the connecting frame in leveling assembly can be independently slid along the second sliding rail on leveling support adjustment, so that the extrusion plate of screw rod end portion can be flexibly and accurately positioned to any deformation position of electrolytic cell internal support or porous plate net structure, to realize the function of targeted mechanical extrusion correction to local uneven place, effectively ensure the flatness of bipolar plate assembly whole, make the cathode and anode " pole distance " meet design target, avoid the diaphragm damage risk caused by local overvoltage and the energy consumption increase problem caused by pole distance too large.

Description

Technical Field

[0001] This utility model relates to the field of testing and leveling fixtures for bipolar plate assemblies in electrolytic cells, specifically a testing and leveling fixture for bipolar plate assemblies in electrolytic cells. Background Technology

[0002] Electrolyzers are core equipment in the electrochemical industry. Taking chlor-alkali electrolyzers and alkaline water hydrogen production electrolyzers as examples, the internal support components and porous plate mesh structure of the cell often become uneven during the production process. These unevennesses will eventually cause the electrode "gap" in some areas to not meet the design target, resulting in overpressure of the diaphragm by the electrode mesh on both sides of the diaphragm, or the "gap" to be too large.

[0003] These uneven conditions can lead to some adverse consequences. If the height of the supports on both sides of the diaphragm is higher than the design value, the electrode mesh will exert excessive pressure on the diaphragm, which may cause damage to the diaphragm, resulting in gas leakage between the anode and cathode, and thus posing a risk of explosion. If the height of the supports on both sides of the diaphragm is lower than the design value, the distance between the anode and cathode will be too large, which will cause the voltage of the electrolysis chamber to rise, thereby consuming more electrical energy.

[0004] This requires the production organization to use convenient and reliable leveling devices and measures to level uneven areas generated by the support components during the production process.

[0005] Therefore, a testing and leveling fixture for bipolar plate assemblies in electrolytic cells is proposed to address the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, such as the lack of a precise and convenient detection height and the inability to correct deformation, this invention proposes a detection and leveling fixture for bipolar plate assemblies in electrolytic cells.

[0007] The technical solution adopted by this utility model to solve its technical problem is: the detection and leveling fixture for the bipolar plate assembly of the electrolytic cell described in this utility model includes a fixture frame, a first slide rail is fixedly connected to both sides of the fixture frame, a slider is slidably connected to the surface of the first slide rail, a leveling component is fixedly connected to the side of the slider, and a detection component is provided on the top surface of the fixture frame.

[0008] The leveling assembly includes a connecting rod fixedly connected to the side of the slider. One end of the connecting rod is fixedly connected to two leveling brackets arranged symmetrically on the axis. The inner walls of the two leveling brackets are fixedly connected to two second slide rails symmetrically on the axis. Several connecting frames are slidably connected between each pair of second slide rails. The sides of the several connecting frames are threadedly connected to a through screw rod. One end of the screw rod is fixedly connected to a pressing plate.

[0009] The testing assembly includes a testing frame disposed on the top surface of the tooling frame. A third slide rail is fixedly connected to the side of the testing frame, and a dial indicator structure is slidably connected to the side of the third slide rail. Magnetic plates are fixedly connected to the bottom ends of both ends of the testing frame, and the testing frame is magnetically connected to the top surface of the tooling frame through the magnetic plates.

[0010] Preferably, the leveling bracket moves on the first slide rail via a connecting rod and a slider to adjust the position of the leveling component.

[0011] Preferably, the connecting bracket slides on the second slide rail to adjust the position of the screw rod, and the connecting bracket can be increased in appropriate number according to actual needs to slide between the two second slide rails.

[0012] Preferably, the dial indicator structure slides on a third slide rail to measure the height of components inside the electrolytic cell.

[0013] Preferably, the rotation of the screw rod drives the extrusion plate to move linearly for extrusion correction.

[0014] Preferably, the detection component is used to measure the height of the bipolar plate assembly of the electrolytic cell, and the leveling component is used to level the bipolar plate assembly of the electrolytic cell.

[0015] Preferably, the four second slide rails on the leveling bracket are arranged symmetrically to form two pairs of slide rails, and a connecting frame is slidably connected between each pair of second slide rails, thereby realizing the balance and stable movement of the connecting frame.

[0016] Preferably, the third slide rail is horizontally fixed to the side of the testing frame to guide the horizontal sliding of the dial indicator structure, ensuring the continuity and coverage of height measurement.

[0017] Preferably, the threaded connection between the screw rod and the connecting frame provides a controllable linear feed, making the corrective force of the extrusion plate precisely adjustable.

[0018] Preferably, the tooling frame integrates a detection component and a leveling component to achieve coordinated operation of detection and leveling, and guides the targeted correction of the leveling component through the measurement data of the dial gauge structure.

[0019] The advantages of this utility model are:

[0020] 1. This utility model can drive the leveling assembly to move as a whole through the first slide rail, slider and connecting rod on both sides of the tooling frame. The connecting frame in the leveling assembly can slide and adjust independently along the second slide rail on the leveling bracket. This allows the extrusion plate at the end of the screw rod to be flexibly and accurately positioned to any deformation position of the support or porous plate mesh structure inside the electrolytic cell. This enables targeted mechanical extrusion correction of local unevenness, effectively ensuring the overall flatness of the bipolar plate assembly, making the anode and cathode “pole distance” meet the design target, avoiding the risk of diaphragm damage caused by local overpressure and the problem of increased energy consumption caused by excessive pole distance.

[0021] 2. This utility model, by independently setting the detection component on the tooling frame, allows the dial indicator structure to slide along the third slide rail on the detection frame, thereby enabling rapid and convenient continuous height measurement of the leveled or unleveled areas inside the electrolytic cell. This achieves the separation and synergy of detection and leveling functions. Furthermore, the magnetically connected detection frame can be placed anywhere on the tooling frame, facilitating flexible adjustment of the detection position. This structure provides an efficient and intuitive on-site detection method, overcoming the limitations of traditional production where the electrode pitch can only be indirectly guaranteed by precisely controlling the height of a single support component. It reduces the over-reliance on the accuracy of preceding parts and production costs, while effectively detecting and reporting deformations that may be introduced by subsequent installation and welding, making the entire leveling and detection process easier, more accurate, and more reliable. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the detection component structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the leveling component structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the tooling frame and the first slide rail structure of this utility model;

[0027] Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0028] In the diagram: 1. Tooling frame; 2. First slide rail; 3. Slider; 5. Leveling assembly; 51. Leveling bracket; 52. Second slide rail; 53. Connecting frame; 54. Tightening rod; 55. Extrusion plate; 56. Connecting rod; 6. Detection assembly; 61. Detection frame; 62. Third slide rail; 63. Dial indicator structure; 64. Magnetic suction plate. Detailed Implementation

[0029] 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 scope of protection of the present utility model.

[0030] Please see Figures 1-5 As shown, a testing and leveling fixture for an electrolytic cell bipolar plate assembly includes a fixture frame 1, with first slide rails 2 fixedly connected to both sides of the fixture frame 1, sliders 3 slidably connected to the surface of the first slide rails 2, leveling components 5 fixedly connected to the side of the sliders 3, and a testing component 6 provided on the top surface of the fixture frame 1.

[0031] The leveling assembly 5 includes a connecting rod 56 fixedly connected to the side of the slider 3. One end of the connecting rod 56 is fixedly connected to two leveling brackets 51 arranged symmetrically on the axis. The inner walls of the two leveling brackets 51 are fixedly connected to two second slide rails 52 symmetrically on the axis. Several connecting frames 53 are slidably connected between each pair of second slide rails 52. The sides of the several connecting frames 53 are threaded with through screw rods 54. One end of the screw rods 54 is fixedly connected to an extrusion plate 55.

[0032] During operation, the operator first places the fixture 1 above the bipolar plate assembly of the electrolytic cell to be processed. By manually pushing the connecting rod 56 or the leveling bracket 51, the slider 3 slides along the first slide rail 2 on both sides of the fixture 1, thereby moving the entire leveling assembly 5 above the approximate area where the support or perforated plate structure in the cell deforms. Next, the operator can manually slide the connecting bracket 53, moving it along the paired second slide rail 52 on the leveling bracket 51, thereby fine-tuning the connecting bracket 53 and its screw rod 54 and extrusion plate 55 to directly above or to the side of the deformed position. After positioning, the operator uses a tool to screw the screw rod 54 on the side of the connecting bracket 53. Driven by the threaded pair, the screw rod 54 makes a linear feed, pushing the extrusion plate 55 fixed at one end to apply continuous mechanical extrusion force to the protruding deformed part below or to the side, achieving local correction. This process is repeated until the area is flat again. This design achieves precise and flexible application of the leveling force, effectively ensuring the overall flatness of the bipolar plate assembly.

[0033] Furthermore, the testing component 6 includes a testing frame 61 fixedly connected to the top surface of the tooling frame 1, a third slide rail 62 fixedly connected to the side of the testing frame 61, and a dial indicator structure 63 slidably connected to the side of the third slide rail 62.

[0034] During operation, after placing the tooling frame 1, the operator directly pushes the dial indicator structure 63 by hand, allowing it to slide smoothly along the third slide rail 62 fixed to the side of the inspection frame 61. The dial indicator probe will pass over the surface of the internal components of the electrolytic cell below, and its dial can display the height difference of each point relative to the reference in real time and accurately, thereby quickly scanning and locating the uneven areas of the entire plane. In the collaborative leveling operation, the operator can first use the dial indicator structure 63 to perform a full inspection and mark the non-conforming points, and then move the leveling component 5 to the corresponding position according to the marked points for precise correction. After correction, the dial indicator structure 63 can be used again for retesting and verification. This process combines high-precision continuous measurement with adjustable mechanical correction, which greatly improves the quality and efficiency of "distance" control and reduces the over-reliance on the machining accuracy of individual parts.

[0035] Furthermore, the dial indicator structure 63 slides on the third slide rail 62 to measure the height of the components inside the electrolytic cell;

[0036] During operation, in the inspection process, the operator smoothly slides the dial indicator structure 63 connected to the side of the third slide rail 62, causing its probe to move above the components inside the electrolytic cell. The dial indicator structure 63 can continuously and accurately read and display the height values ​​of each measurement point, thereby quickly scanning and locating the uneven areas of the entire plane. This implementation method achieves rapid, convenient, and accurate measurement of the height of components related to "pole distance," overcoming the limitations of traditional production that relies solely on strictly controlling the precision of individual parts to indirectly ensure the pole distance after installation. It provides direct and reliable data for whether subsequent leveling is required and for verifying the leveling effect, significantly improving the efficiency and accuracy of assembly and adjustment.

[0037] Furthermore, the rotation of the screw rod 54 causes the extrusion plate 55 to move linearly for extrusion correction;

[0038] During operation, in the leveling process, after the screw rod 54 and its end pressing plate 55 are positioned at the deformation point, the operator uses a tool to screw the screw rod 54 on the side of the connecting frame 53. Driven by the threaded pair, the screw rod 54 feeds linearly, thereby pushing the pressing plate 55 to apply a controllable, unidirectional mechanical pressing force to the protruding part of the support or porous plate mesh structure, thus achieving compression correction. This implementation method transforms a simple rotational action into a precise linear pushing force, making the application of the correction force stable, controllable, and easy to fine-tune. It can effectively correct local deformation while greatly reducing the risk of component damage or new deformation caused by excessive or uneven correction force, ensuring the safety and reliability of the leveling process.

[0039] Furthermore, the connecting bracket 53 slides on the second slide rail 52 to adjust the position of the screw rod 54. The connecting bracket 53 can be increased in an appropriate number according to actual needs and slidably connected between the two second slide rails 52.

[0040] During operation, the operator can manually slide the connecting frame 53 along the second slide rail 52 symmetrically arranged on the leveling bracket 51 to fine-tune the position of the tightening rod 54 and the extrusion plate 55, ensuring they are precisely aligned with the deformation points of the internal support components or porous plate mesh structure of the electrolytic cell. Simultaneously, the connecting frame 53 can be increased in appropriate numbers according to actual correction needs, sliding between each pair of second slide rails 52 to expand the coverage area and adapt to different sizes of local uneven areas. The beneficial effects of this implementation are that it achieves flexible and precise application of the leveling force, enabling targeted mechanical extrusion correction of local deformations, effectively ensuring the overall flatness of the bipolar plate assembly, ensuring the anode and cathode "pole distance" meets design targets, avoiding the risk of diaphragm damage due to local overpressure and the increased energy consumption caused by excessive pole distance, thereby improving the efficiency and reliability of the leveling process.

[0041] Furthermore, the leveling bracket 51 moves on the first slide rail 2 via the connecting rod 56 and the slider 3 to adjust the position of the leveling assembly 5;

[0042] During operation, the leveling bracket 51 moves along the first slide rail 2 via the connecting rod 56 and the slider 3 to adjust the overall position of the leveling component 5. During operation, the slider 3 is driven to slide along the first slide rail 2 on both sides of the tooling frame 1 by manually pushing the connecting rod 56 or the leveling bracket 51, thereby realizing the translation and positioning of the leveling component 5. The two leveling brackets 51 are arranged axially symmetrically, so that the leveling component 5 can cover symmetrical areas and adapt to the correction needs of vertical or split alignment. At the same time, based on the sliding connection structure between the slider 3 and the first slide rail 2, the leveling component 5 can be completely disassembled from the tooling frame 1 by sliding the slider 3 to the end of the first slide rail 2, thereby realizing the separation and quick maintenance of the component.

[0043] Working principle: During operation, the fixture 1 is first placed above the electrolytic cell assembly. The dial indicator structure 63 is manually pushed to slide along the third slide rail 62 of the detection assembly 6 to continuously scan and measure the supporting component or perforated plate structure below, thereby quickly locating areas with excessive height tolerance or unevenness. Subsequently, for the detected deformation position, the operator drives the entire leveling assembly 5 to move along the first slide rail 2 on both sides of the fixture 1 to above the target area through the slider 3 and connecting rod 56. The connecting frame 53 can be further fine-tuned to slide along the second slide rail 52 on the leveling bracket 51, thereby accurately aligning the extrusion plate 55 at the end of the screw rod 54 with the point to be corrected. Finally, the screw rod 54 is rotated to move forward in a straight line under the thread drive, driving the extrusion plate 55 to apply controllable mechanical pressure to the protruding part for correction. After correction, the dial indicator structure 63 can be used again for retesting and verification, thus forming a complete closed-loop workflow of "detection-positioning-fine-tuning-force correction-verification", realizing efficient and accurate measurement and repair of the flatness of the bipolar plate assembly of the electrolytic cell.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A testing and leveling fixture for bipolar plate assemblies in an electrolytic cell, characterized in that: The tooling includes a tooling frame (1), on both sides of the tooling frame (1) are fixedly connected to a first slide rail (2), on the surface of the first slide rail (2) are slidably connected to a slider (3), on the side of the slider (3) are fixedly connected to a leveling component (5), and on the top surface of the tooling frame (1) are a detection component (6). The leveling assembly (5) includes a connecting rod (56) fixedly connected to the side of the slider (3). One end of the connecting rod (56) is fixedly connected to two leveling brackets (51) arranged symmetrically. The inner walls of the two leveling brackets (51) are fixedly connected to two second slide rails (52) symmetrically. Several connecting frames (53) are slidably connected between each pair of second slide rails (52). The sides of the several connecting frames (53) are threaded with through screw rods (54). One end of the screw rods (54) is fixedly connected to an extrusion plate (55). The detection component (6) includes a detection frame (61) disposed on the top surface of the tooling frame (1). A third slide rail (62) is fixedly connected to the side of the detection frame (61). A dial indicator structure (63) is slidably connected to the side of the third slide rail (62). Magnetic plates (64) are fixedly connected to the bottom ends of both ends of the detection frame (61). The detection frame (61) is magnetically connected to the top surface of the tooling frame (1) through the magnetic plates (64).

2. The inspection and leveling fixture for an electrolytic cell bipolar plate assembly according to claim 1, characterized in that: The leveling bracket (51) moves on the first slide rail (2) via the connecting rod (56) and the slider (3) to adjust the position of the leveling assembly (5).

3. The inspection and leveling fixture for an electrolytic cell bipolar plate assembly according to claim 1, characterized in that: The connecting frame (53) slides on the second slide rail (52) to adjust the position of the screw rod (54). The connecting frame (53) can be increased in appropriate number according to actual needs and slidably connected between the two second slide rails (52).

4. The inspection and leveling fixture for an electrolytic cell bipolar plate assembly according to claim 1, characterized in that: The dial gauge structure (63) slides on the third slide rail (62) to measure the height of the components inside the electrolytic cell.

5. The inspection and leveling fixture for an electrolytic cell bipolar plate assembly according to claim 1, characterized in that: The rotation of the screw rod (54) causes the extrusion plate (55) to move linearly for extrusion correction.

6. The inspection and leveling fixture for an electrolytic cell bipolar plate assembly according to claim 1, characterized in that: The detection component (6) is used to measure the height of the bipolar plate assembly of the electrolytic cell, and the leveling component (5) is used to level the bipolar plate assembly of the electrolytic cell.

7. The inspection and leveling fixture for an electrolytic cell bipolar plate assembly according to claim 1, characterized in that: The four second slide rails (52) on the leveling bracket (51) are arranged symmetrically to form two pairs of slide rails. A connecting frame (53) is slidably connected between each pair of second slide rails (52), thereby realizing the balance and stable movement of the connecting frame (53).

8. The inspection and leveling fixture for an electrolytic cell bipolar plate assembly according to claim 1, characterized in that: The third slide rail (62) is horizontally fixed to the side of the test frame (61) to guide the horizontal sliding of the dial gauge structure (63) and ensure the continuity and coverage of height measurement.

9. The inspection and leveling fixture for an electrolytic cell bipolar plate assembly according to claim 1, characterized in that: The threaded connection between the screw rod (54) and the connecting frame (53) provides a controllable linear feed, making the corrective force of the extrusion plate (55) precisely adjustable.

10. The inspection and leveling fixture for an electrolytic cell bipolar plate assembly according to claim 1, characterized in that: The tooling frame (1) integrates the detection component (6) and the leveling component (5) to achieve coordinated operation of detection and leveling. The measurement data of the dial indicator structure (63) guides the targeted correction of the leveling component (5).

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