Assembly detection tool and method for stacking hydrogen production electrolytic cell

By designing an electrolytic cell stacking tooling with hydraulic support columns and identification components, the problems of unstable electrolytic cell stacking and difficulty in angle adjustment in the prior art are solved, and the accurate, flexible stacking and efficient deviation correction of the electrolytic cell are achieved.

CN120232346APending Publication Date: 2025-07-01SANTACC ENERGY CO LTD
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Patent Information

Application Number
CN202510304169.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2025-07-01

AI Technical Summary

Technical Problem

The existing electrolytic cell assembly tooling has problems such as unstable, difficult to adjust the horizontal angle, wrong inclination angle or stacking direction during the stacking process, which leads to cumbersome deviation correction process and is difficult to compatible with tooling of different sizes.

Method used

An assembly detection tool for stacking of hydrogen electrolytic cells is designed. By setting up a first hydraulic support column and a second hydraulic support column, real-time detection and precision adjustment are carried out in conjunction with the identification components to ensure accurate stacking of the electrolytic cells and mid-way deviation correction.

Benefits of technology

The accuracy and flexibility of the electrolytic cell stacking process is achieved, and it can adapt to electrolytic cells of different sizes, reduce deviation correction time, and improve assembly stability and accuracy.

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Abstract

The assembly detection tool comprises a bottom plate installed in a fixed rail, four second hydraulic supporting columns are arranged on the bottom plate in the circumferential direction at equal intervals, a first hydraulic supporting column is arranged between every two adjacent second hydraulic supporting columns, a third hydraulic supporting column and a stretching device are arranged in the center of the bottom plate, and an identification assembly on the fixed rail is electrically connected with the four second hydraulic supporting columns and the stretching device. The tool is small in occupied area, can adapt to electrolytic cells of various sizes, can dynamically adjust the size and the height of a supporting point, and improves the assembly stability and precision. The method comprises the steps of leveling a bottom plate, installing and leveling an end plate, gradually stacking electrolytic cell parts, recognizing card features and horizontal positions by using a recognition assembly, and alarming and correcting deviation when the electrolytic cell parts are not horizontal. The stacking device is safe and convenient in stacking, low in cost and capable of accurately positioning wrong polar plates and shortening deviation rectifying time.
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Description

Technical Field

[0001] The present invention relates to an assembly detection tooling and method for hydrogen production electrolyzer stacking. Background Art

[0002] With the production activities and industrial development of mankind, the greenhouse gas emissions are increasing day by day, and countries around the world are gradually promoting green energy; and as the carrier of all green energy, the production equipment of green hydrogen - the electrolyzer has gradually become the main equipment facility.

[0003] At present, during the assembly process of the electrolyzer, the existing support tooling has problems such as instability during the stacking process, difficult adjustment of the horizontal angle during the stacking process, cumbersome rectification process due to errors in the inclination angle, stacking direction, accessories, etc., incompatibility between large and small tooling, and the need for multiple sets of equipment tooling.

[0004] In particular, during the assembly process of the electrolyzer at present, the support tooling at the lower part of the electrolyzer has instability problems during the stacking process, which will lead to difficult adjustment of the horizontal angle during the electrolyzer stacking process; however, when such instability occurs, there is no simple rectification means in the existing stacking equipment. Once rectification is required due to angle problems, it is necessary to re - stack the electrolyzer plates, which is time - consuming and laborious.

[0005] Therefore, how to achieve accurate and mid - process rectifiable assembly of the electrolyzer is a problem to be solved. Summary of the Invention

[0006] The purpose of the present invention is to solve the above - mentioned deficiencies of the prior art. An assembly detection tooling for hydrogen production electrolyzer stacking is provided. By setting the first hydraulic support column and the second hydraulic support column, the device can cooperate with more specifications of electrolyzers. At the same time, by installing the recognition component, the horizontal position deviation of the end plate or the plate can be detected in real time and precisely adjusted by the hydraulic support column. The present invention also provides an assembly detection method for hydrogen production electrolyzer stacking. Through continuous detection, the stacking sequence is ensured to be accurate, non - horizontal conditions are detected in advance and closed - loop adjustment is immediately carried out. These purposes of the present invention are achieved as follows:

[0007] The present invention provides an assembly detection tool for hydrogen production electrolyzer stacking, including a bottom plate and a fixed track. The bottom plate is installed inside the fixed track. Four second hydraulic support columns are circumferentially and equidistantly installed on the bottom plate. A first hydraulic support column is installed between adjacent hydraulic support columns. A third hydraulic support column is installed at the center of the bottom plate. A stretching device is also installed at the center of the bottom plate. The stretching device is connected to the first hydraulic support column through a stretching rod. The first hydraulic support column moves inward under the stretching action of the stretching rod. A plurality of recognition components are movably installed on the fixed track, and all the recognition components face the bottom plate. The recognition components are electrically connected to the first hydraulic support column and the stretching device respectively. A laser recognition device and a vision recognition device are installed on each recognition component. The laser recognition devices correspond to the first hydraulic support column and the second hydraulic support column respectively. The vision recognition devices correspond to the first hydraulic support column and the second hydraulic support column respectively.

[0008] Furthermore, in order to further increase the stability of the hydraulic support column, the first hydraulic support column includes a hydraulic support rod and a hydraulic support cylinder. The second hydraulic support column includes a hydraulic support rod and a hydraulic support cylinder. The hydraulic support rod is movably installed inside the hydraulic support cylinder.

[0009] Furthermore, in order to further increase the stability of the first hydraulic support column during movement, four track grooves are provided on the bottom plate. The first hydraulic support column cooperates with the track grooves. The axis of the stretching rod is parallel to the axis of the track grooves.

[0010] Furthermore, in order to further increase the stability during the installation of large electrolyzers, a hydraulic support rib is installed at the lower part of the second hydraulic support column.

[0011] Furthermore, in order to further enhance the recognition effect, four recognition components are installed.

[0012] On the other hand, the present invention provides an assembly detection method for hydrogen production electrolyzer stacking, including the following steps: leveling the bottom plate, adjusting the heights of the first hydraulic support column and the second hydraulic support column, adjusting the diameter of the second hydraulic support column to match the diameter of the end plate, and installing the end plate; using the recognition component to measure the horizontal position of the end plate, adjusting the end plate to the horizontal position by changing the heights of the first hydraulic support column and the second hydraulic support column, and recording the height H = 0mm of each support column; gradually stacking the electrolyzer components. During this process, the recognition component will continuously identify and compare the card features of each electrolyzer component, and identify the horizontal position data after each stacking; judging whether it is horizontal according to the horizontal position data; if so, continue stacking; if not, the device alarms and adjusts the heights of the first hydraulic support column and the second hydraulic support column for correction, and then continues stacking.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The device occupies a small area, is applicable to stacking electrolytic cells of various different sizes, the stacking process is safe and convenient, the installation cost is low, and the installation accuracy is high;

[0014] The device can dynamically adjust the size, adjust the horizontal height of each support point as needed, and improve the assembly stability; it can adjust the support height, ensure the levelness, and save manpower, material resources and time;

[0015] When loading the cell, it not only identifies the card features of the component, but also identifies the horizontal position of the component. If there are problems during cell loading or testing, the error plate number can be quickly found by identifying the identification data of the component, and accurately positioned and replaced; at the same time, it can identify and compare the installation features of the plate during the plate loading process to ensure the stacking accuracy, and alarm and identify in time, greatly reducing the rectification time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a top view schematic diagram of an assembly detection tooling for hydrogen production electrolytic cell stacking;

[0017] Figure 2 is a side view schematic diagram of an assembly detection tooling for hydrogen production electrolytic cell stacking;

[0018] Figure 3 is a three-dimensional view schematic diagram of an assembly detection tooling for hydrogen production electrolytic cell stacking;

[0019] Figure 4 is a flow schematic diagram of an assembly detection method for hydrogen production electrolytic cell stacking;

[0020] Figure 5 is the experimental data of Examples 1 to 4 of an assembly detection device and method for hydrogen production electrolytic cell stacking;

[0021] In the figure: 1. First hydraulic support column, 2. Second hydraulic support column, 3. Tensile rod, 4. Track groove, 5. Tensile device, 6. Fixed ring, 7. Bottom plate, 8. Identification component, 10. Electrolytic cell end plate, 11. Hydraulic support rod, 12. Hydraulic support cylinder, 13. Hydraulic support rib plate. DETAILED DESCRIPTION OF THE INVENTION

[0022] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with the embodiments and the drawings. The embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0023] Please refer to Figures 1-4, an embodiment of the present invention provides an assembly detection tooling for a hydrogen production electrolytic cell stack, including a bottom plate 7 and a fixed track. The bottom plate 7 is installed inside the fixed track. Four second hydraulic support columns 2 are circumferentially and equidistantly installed on the bottom plate 7. A first hydraulic support column 1 is installed between adjacent hydraulic support columns. A third hydraulic support column is installed at the center of the bottom plate 7. A stretching device 5 is also installed at the center of the bottom plate 7. The stretching device 5 is connected to the first hydraulic support column 1 through a stretching rod 3. The first hydraulic support column 1 moves inward under the stretching action of the stretching rod 3. A plurality of identification components 8 are movably installed on the fixed track. The identification components 8 are all arranged facing the bottom plate 7. The identification components 8 are respectively electrically connected to the first hydraulic support column 1 and the stretching device 5. Laser identification devices and visual identification devices are installed on the identification components 8. The laser identification devices correspond to the first hydraulic support column 1 and the second hydraulic support column 2 respectively. The visual identification devices correspond to the first hydraulic support column 1 and the second hydraulic support column 2 respectively.

[0024] It should be noted that in this embodiment, the identification component 8 can move around the track to improve the identification effect.

[0025] Specifically, this device has the ability to radially adjust to adapt to the size of the electrode plate. The radial hydraulic pull rod can contract the support rod to adapt to the size of the stacked electrode plate, effectively reducing the situation that the traditional stacking tooling has poor adaptability and requires multiple toolings of different sizes, enabling the same working station to have the attribute of a multi-task mode and allowing the assembly of electrolytic cells of various specifications and sizes.

[0026] In this embodiment, the first hydraulic support column 1 includes a hydraulic support rod 11 and a hydraulic support cylinder 12. The second hydraulic support column 2 includes a hydraulic support rod 11 and a hydraulic support cylinder 12. The hydraulic support rod 11 is movably installed inside the hydraulic support cylinder 12. Four track grooves 4 are provided on the bottom plate 7. The first hydraulic support column 1 cooperates with the track grooves 4. The axis of the stretching rod 3 is parallel to the axis of the track grooves 4. A hydraulic support rib plate 13 is installed at the lower part of the second hydraulic support column 2. Four identification components 8 are installed.

[0027] Please refer to Figure 4, on the other hand, an embodiment of the present invention provides an assembly detection method for a hydrogen production electrolyzer stack, including the following steps: leveling the bottom plate 7, adjusting the heights of the first hydraulic support column 1 and the second hydraulic support column 2, adjusting the diameter of the second hydraulic support column 2 to match the diameter of the end plate, and installing the end plate; using the recognition component 8 to measure the horizontal position of the end plate, adjusting the end plate to the horizontal position by changing the heights of the first hydraulic support column 1 and the second hydraulic support column 2, and recording the height H = 0 mm of each support column; gradually stacking the electrolyzer components. During this process, the recognition component 8 will continuously identify and compare the card features of each electrolyzer component, and identify the horizontal position data after each stack; judge whether it is horizontal according to the horizontal position data; if so, continue stacking; if not, the device will alarm and adjust the heights of the first hydraulic support column 1 and the second hydraulic support column 2 for correction, and then continue stacking.

[0028] Specifically, first manually level the bottom plate 7, then adjust the height spacing of the hydraulic supports, support the legs on the end plate at an appropriate distance, and then input the support height into the control system. The support height in this embodiment is 600 mm, and place the electrolyzer end plate 10 on the tooling;

[0029] Then input the comparison diagrams of the process nodes in the control system of this stacking into the system, such as: comparison diagrams of the gas flow channel, liquid flow channel, positioning holes, plate electrode marking points, etc. The subsequent vision recognition system will perform standard card recognition and comparison, error correction and alarm during the stacking process;

[0030] After the stacking tooling is stable, perform adaptive horizontal calibration. The laser rangefinder first measures and calibrates the same plane of the first end plate or plate electrode, and adjusts the support system to be horizontal, and records H = 0 mm at this time; then perform secondary manual verification and calibration of the levelness; at the same time, slightly adjust the height of the hydraulic support to make it horizontal. After calibration is correct, reset the height of each support tube H = 0; maintain this state, and at this time, components such as plate electrodes, electrode frames, diaphragms, and electrode meshes can be gradually stacked;

[0031] During the gradual stacking process, each stacked plate electrode will continuously identify and compare according to the card features input or called from the database during the installation process to ensure the accuracy of the stacking process. The number of each plate, such as "SANTACC-1000 / 1.6-L-001", is recorded in the vision recognition system, and then the assembly process of this plate electrode is also recorded; in addition, the relevant data of the laser ranging are also recorded. The relevant data are the data of the stack height automatically converted by the system, and continuously compare and analyze the laser ranging conditions of each point. When the height error exceeds 0.01 - 0.1 mm per piece cumulatively, an alarm and positive / negative correction will be started, which can eliminate errors at an early stage and avoid the situation that subsequent errors accumulate too much to be corrected, or even tilt and collapse.

[0032] It should be noted that the visual recognition system is electrically connected to the recognition component 8; the card features are recognition features that are pre-set and can be recognized by the recognition component 8.

[0033] Through this method, the height and diameter can be quickly expanded according to the actual on-site needs.

[0034] Specifically, the electrolytic cell support installation device and method adopted in this embodiment are superior to the traditional electrolytic cell installation method in terms of installation time, installation efficiency, installation accuracy, floor area and volume, convenience of installation or replacement, etc., and have a real-time deviation correction system, high efficiency, safety, and long service life. Specifically as follows: In this embodiment, the larger the diameter size of the electrolytic cell stack, the more time is saved. The advantages of using the device and method of this embodiment for stacking are obvious, saving at least 90% of the time for single-time deviation correction and 20% of the time for misstacking positioning and correction; the stacking tool of the present invention has a real-time deviation correction function, avoiding error accumulation and the manual measurement error in the traditional stacking process. The traditional steps require measurement every 10 - 30 pieces installed, and cannot be effectively corrected; in addition, the wrong plates can be directly identified by the visual recognition system and the recognition component 8 during the positioning and stacking process, effectively reducing the stacking error and the time for reinstallation.

[0035] Figure 5 The experimental data of Examples 1 to 4 for stacking using this device and this method; in the figure, the flatness δ (dmax - dmin) (mm): refers to the height difference between the highest and lowest points on the same (stacking) plane when the electrolytic cell stacking is completed; the average normal cell installation time (min): refers to the average time required to install the electrolytic cell using the traditional tooling; the average stacking time of the present invention (min): refers to the average time required to install the electrolytic cell using the tooling of the present invention; the stacking accuracy rate (%): refers to the percentage of the number of misstacked plates in the total number of plates for each installed cell; the average time required for single-time deviation correction (min): the average time for correcting a misstacked single plate; the average misstacking positioning and correction time when unstacking (min): the total time used for searching and unstacking after misstacking; as shown in the figure, a single unit of this embodiment can be applicable to the assembly of plates and their cells with a diameter of 500 - 2500 mm; the cell installation efficiency, accuracy rate, and deviation correction method have all been greatly improved, effectively avoiding the occurrence of cell installation failure and excessive deviation correction time.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An assembly and inspection tool for hydrogen production electrolyzer stacking, characterized in that: It includes a base plate and a fixed track, the base plate is installed inside the fixed track, four second hydraulic support columns are installed equidistantly on the base plate in the circumferential direction, a first hydraulic support column is installed between adjacent hydraulic support columns, a third hydraulic support column is installed in the center of the base plate, and a stretching device is also installed in the center of the base plate, the stretching device is connected to the first hydraulic support column through a stretching rod, and the first hydraulic support column moves inward with the stretching action of the stretching rod; a plurality of identification components are movably installed on the fixed track, and the identification components are all arranged facing the base plate; the identification components are electrically connected to the first hydraulic support column and the stretching device, respectively, and laser identification devices and visual identification devices are installed on the identification components, the laser identification devices correspond to the first hydraulic support column and the second hydraulic support column, and the visual identification devices correspond to the first hydraulic support column and the second hydraulic support column.

2. The assembly and inspection tool for hydrogen production electrolyzer stacking according to claim 1 is characterized in that: The first hydraulic support column includes a hydraulic support rod and a hydraulic support cylinder, and the second hydraulic support column includes a hydraulic support rod and a hydraulic support cylinder. The hydraulic support rod is movably installed in the hydraulic support cylinder.

3. The assembly and inspection tool for hydrogen production electrolyzer stacking according to claim 1 is characterized in that: The bottom plate is provided with four track grooves, the first hydraulic support column cooperates with the track grooves, and the axis of the stretching rod is parallel to the axis of the track grooves.

4. The assembly and inspection tool for hydrogen production electrolyzer stacking according to claim 3 is characterized in that: A hydraulic support rib is installed at the lower part of the second hydraulic support column.

5. The assembly and inspection tool for hydrogen production electrolyzer stacking according to claim 1, characterized in that: Four identification components are installed.

6. A method for detecting the stacking of hydrogen production electrolyzers, used for implementing the assembly detection tool for the stacking of hydrogen production electrolyzers as described in claims 1-5, characterized in that: The method comprises the following steps: leveling the bottom plate, adjusting the height of the first hydraulic support column and the second hydraulic support column, adjusting the diameter of the second hydraulic support column to match the diameter of the end plate, and installing the end plate; using an identification component to measure the horizontal position of the end plate, adjusting the end plate to a horizontal position by changing the height of the first hydraulic support column and the second hydraulic support column, and recording the height H=0 mm of each support column; gradually stacking the electrolytic cell components, during which the identification component continuously identifies and compares the card features of each electrolytic cell component, and identifies the horizontal position data after each stacking; judging whether it is horizontal according to the horizontal position data; if so, continuing to stack; if not, the device alarms and adjusts the height of the first hydraulic support column and the second hydraulic support column to correct the deviation, and continuing to stack.