Electrolytic tank assembling equipment and electrolytic tank assembling method

Abstract

The invention discloses electrolytic bath assembly equipment and an electrolytic bath assembly method, relates to the technical field of electrolytic bath assembly, and aims to solve the problems of low alignment efficiency and labor consumption of a draw-in bolt and an upper end pressing plate. The electrolytic bath assembling equipment comprises a mounting base, a plurality of supporting plates, a plurality of connecting plates, a plurality of connecting plates, a plurality of connecting plates and a plurality of connecting plates, and the mounting base is provided with a supporting surface and is used for supporting electrolytic baths sequentially stacked from bottom to top; the jacking mechanism comprises a jacking plate and a plurality of positioning pieces, and the positioning pieces are arranged on the jacking plate and used for radially and axially positioning the lower ends of the tension bolts; and the plurality of positioning pieces form a plurality of axial positioning surfaces which have different heights and are used for axially positioning the draw-in bolt.

Description

Technical Field

[0001] This invention relates to the field of electrolytic cell technology, and in particular to an electrolytic cell assembly device and an electrolytic cell assembly method. Background Technology

[0002] Commercially available alkaline electrolyzers consist of multiple sets of individual cells combined to form a single electrolyzer with a large gas production capacity. For example, an electrolyzer with a hydrogen production capacity of 1000 standard cubic meters per hour is composed of 300 electrolysis cells stacked together. To ensure stacking accuracy (verticality, alignment) and sealing, the electrolyzers must be stacked horizontally layer by layer. This horizontal layer-by-layer stacking refers to stacking the end pressure plates, electrode plates, diaphragms, and gaskets vertically layer by layer. After assembly, the electrolyzer is flipped to a horizontal position. Due to the stacking of more than 300 cells, the total length of a single electrolyzer is >5m. A lifting platform is an essential operating platform for electrolyzer stacking. After the electrolyzers are stacked, the bolts need to be tightened for secure fastening.

[0003] like Figure 1 As shown, the current stacked platform and bolt installation process is as follows: Installation base 6 → Lower end pressure plate 4 → End electrode plate → Gasket → Diaphragm → Electrode plate → … → Gasket → Diaphragm → Electrode plate → End electrode plate → Upper end pressure plate 2 → Through tension bolt 1 → Install upper elastic element and large nut → Install lower elastic element and large nut → Hydraulic tightening. Because after the upper end pressure plate 2 is stacked, the tension bolt 1 passes through the upper end pressure plate 2 and lower end pressure plate 4 sequentially from the top of the upper end pressure plate 2. This assembly method requires the net operating height of the electrolytic cell installation workshop to equal the length of the electrolytic cell plus the length of the tension bolt, resulting in high height requirements for the electrolytic cell installation workshop and high engineering construction costs. Summary of the Invention

[0004] The purpose of this invention is to provide an electrolytic cell assembly equipment and an electrolytic cell assembly method, so as to reduce the height of the electrolytic cell installation workshop and reduce the engineering construction cost.

[0005] In a first aspect, the present invention provides an electrolytic cell assembly apparatus, comprising:

[0006] The mounting base has a support surface for supporting electrolytic cells stacked sequentially from bottom to top, and the electrolytic cells include multiple tension bolts;

[0007] The lifting mechanism includes a lifting plate and multiple positioning elements. The multiple positioning elements are disposed on the lifting plate and are used to radially and axially position the lower end of the tension bolt. The multiple positioning elements form multiple axial positioning surfaces of different heights for axially positioning the tension bolt.

[0008] With the above technical solution, compared with the existing assembly equipment that only has a mounting base, the assembly equipment of this application can abut against the positioning part of the lifting mechanism after the lower end of the tension bolt passes through the lower end pressure plate. The positioning part positions the lower end of the tension bolt axially and radially, which can realize the introduction of the tension bolt before stacking the upper end pressure plate, greatly shortening the lifting stroke of the tension bolt in the height direction, reducing the lifting height of the tension bolt, thereby reducing the height of the electrolytic cell installation workshop and reducing the engineering construction cost. Because multiple positioning components create multiple axial positioning surfaces of varying heights for the axially positioned tension bolts, the upper surfaces of the different tension bolts are not coplanar and have height differences. When the tension bolts are assembled first and then the upper end plate is stacked, as the upper end plate gradually descends, the distance between the upper surface of the different tension bolts and the upper end plate varies. Only one or a few tension bolts closest to the upper end plate need to be aligned and aligned with the through holes on the upper end plate. This allows the tension bolts at different heights to pass through the upper end plate quickly and sequentially. Only one or a few operators are needed for alignment, eliminating the need for multiple operators to simultaneously align all the tension bolts. Therefore, manpower is saved, the alignment operation is simple, and assembly efficiency is improved. The lifting mechanism can simultaneously lift the tension bolts and uniformly assemble all lower locking components, improving assembly efficiency and saving manpower.

[0009] In some possible implementations, the lifting plate has multiple through holes corresponding to multiple tension bolts, and the positioning element is detachably connected to the through holes.

[0010] With the above technical solution, multiple through holes on the lifting plate can complete the unified assembly of the lower locking components of the tension bolt. After the upper locking components are locked and fixed to the upper end of the tension bolt, the positioning component can be removed from the through hole position of the lifting plate, and the tension bolt can be locked and fixed at the through hole position, which improves assembly efficiency and saves manpower.

[0011] In some possible implementations, the electrolytic cell further includes an upper locking component and a lower locking component, each comprising an elastic element and a nut. A through-hole allows the lower end of the tension bolt and the nut of the lower locking component to pass through, but does not allow the elastic element of the lower locking component to pass through. This configuration allows each elastic element to be placed in the through-hole after the positioning component is removed, and supported by a lifting mechanism. This facilitates alignment of all elastic elements when the lower locking component is used to lock the electrolytic cell, preventing misalignment. Furthermore, during the installation of the lower locking component, it is not necessary to install each elastic element individually; the lifting plate can simultaneously lift and mount the corresponding elastic elements of each tension bolt onto the tension bolt, significantly reducing labor intensity and improving assembly efficiency.

[0012] In some possible implementations, the positioning element includes a positioning base detachably connected to the through hole, and the positioning base is provided with a positioning groove for positioning the lower end of the tension bolt. In this configuration, the positioning groove in the positioning base supports and positions the lower end of the tension bolt.

[0013] In some possible implementations, the positioning element also includes a guide sleeve disposed at the opening of the positioning groove. This arrangement allows the lower end of the tension bolt to be easily inserted into the positioning groove for positioning via the guide sleeve.

[0014] In some possible implementations, the outer wall of the positioning element is provided with an overlapping structure, through which the positioning element overlaps with the edge of the through hole; and / or, the positioning element is threaded to the through hole. With this configuration, the positioning element achieves a detachable connection through overlapping or threaded connection.

[0015] In some possible implementations, the mounting base includes a base plate and a support member, one end of which is fixed to the base plate, and the other end has the support surface. A lifting plate is located around the periphery of the support member. Thus, the base plate can be placed on the ground, and the support surface of the support member provides stable support for the lower end pressure plate, ensuring the stable stacking of the electrolytic cells from bottom to top. The lifting plate is located around the periphery of the support member, directly below the location of the tension bolts.

[0016] In some possible implementations, the support structure includes multiple support columns arranged circumferentially, with the top surfaces of the columns forming a support surface. This arrangement of multiple circumferentially arranged support columns provides stable support while reducing the volume and material requirements of the support structure. Furthermore, the area enclosed by the support columns can accommodate components of the lifting mechanism, improving space utilization.

[0017] In some possible implementations, the lifting plate is a ring-shaped plate that surrounds the support member. The ring-shaped plate, as a whole, can simultaneously support and raise / lower each tension bolt.

[0018] In some possible implementations, when the support component includes multiple support columns, the annular plate has corresponding limiting holes through which the support columns pass, or the inner edge of the annular plate has corresponding limiting notches through which the support columns pass. This configuration enables circumferential limiting between the annular plate and the support component, improves the stability of the annular plate's lifting and lowering, and ensures the alignment accuracy of the tension bolts.

[0019] In some possible implementations, the lifting mechanism further includes a drive component, the lifting drive end of which is connected to the lifting plate for driving the lifting plate to rise and fall; in some possible implementations, the drive component includes a lifting cylinder, the lifting end of which is connected to the lifting plate.

[0020] In some possible implementations, the driving component also includes:

[0021] A sprocket, rotating around its axis, is connected to the lifting end of the lifting cylinder; the axis of the sprocket is set horizontally.

[0022] One end of the chain is fixed relative to the fixed end of the lifting cylinder, and the other end goes around the top of the sprocket and connects to the lifting plate.

[0023] With the above technical solution, the lifting end of the lifting cylinder rises and falls, driving the sprocket to rise and fall together, which in turn drives the moving end of the chain to rise and fall, thus achieving the lifting drive of the lifting plate. The transmission between the chain and sprocket facilitates the arrangement of the lifting cylinder.

[0024] In some possible implementations, the driving component also includes:

[0025] The guide plate is fixedly installed relative to the fixed end of the lifting cylinder, and the guide plate has a vertical guiding structure;

[0026] The guide slider moves and cooperates with the vertical guide structure in the vertical direction, and the guide slider is connected to the lifting plate.

[0027] By adopting the above technical solution, the lifting plate and guide slider can be set to provide stable vertical guidance for the lifting of the lifting plate, thereby improving the stability and directional accuracy of the lifting.

[0028] In some possible implementations, the drive component also includes a connecting plate that connects the lifting plate and the guide slider, with the movable end of the chain connected to the connecting plate. The connecting plate facilitates the connection between the lifting plate and the guide slider, as well as between the chain and the lifting plate.

[0029] Secondly, the present invention also provides a method for assembling an electrolytic cell, comprising:

[0030] Above the support surface of the mounting base, the lower end pressure plate and multiple electrolysis chambers are stacked sequentially from bottom to top;

[0031] Move multiple tension bolts downwards through the lower end pressure plate;

[0032] Position the lower ends of multiple tension bolts so that there is a height difference between the upper end faces of the multiple tension bolts;

[0033] Move the upper end plate to above the upper electrolysis chamber, and then move the upper end plate downwards;

[0034] Align the tension bolts with the corresponding holes on the upper end plate and pass them through in descending order of the upper end face.

[0035] When using the above technical solution, after assembling the tension bolts and then stacking the upper end plate, as the upper end plate gradually descends, due to the height difference between the upper surfaces of different tension bolts, the distance between different tension bolts and the upper end plate varies. Only one or a few tension bolts closest to the upper end plate need to be aligned and aligned each time to match the through holes on the upper end plate. This allows tension bolts at different heights to pass through the upper end plate sequentially. Only one or a few operators are needed for alignment, eliminating the need for multiple operators to simultaneously align all tension bolts. Therefore, it saves manpower, simplifies the alignment operation, and improves assembly efficiency.

[0036] In some implementations, positioning the lower ends of multiple tension bolts involves positioning the lower ends of the bolts in a stepped manner along the circumferential arrangement of the bolts. This results in a stepped increase in the height of the upper surfaces of the tension bolts, making the alignment and positioning operation more convenient by following the circumferential arrangement of the bolts. Attached Figure Description

[0037] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0038] Figure 1 This is an assembly diagram of an electrolytic cell assembly device in the prior art.

[0039] Figure 2 This is a schematic diagram of the installation and tightening bolts of an electrolytic cell assembly device provided in an embodiment of the present invention;

[0040] Figure 3 A schematic diagram of the stacked upper end pressure plate of an electrolytic cell assembly device provided in an embodiment of the present invention;

[0041] Figure 4 A schematic diagram of an upper locking component for mounting an electrolytic cell assembly device provided in an embodiment of the present invention;

[0042] Figure 5 A schematic diagram of the lower locking component for mounting an electrolytic cell assembly device provided in an embodiment of the present invention;

[0043] Figure 6 A schematic diagram of the lifting plate and positioning component of another lifting mechanism provided in an embodiment of the present invention;

[0044] Figure 7 for Figure 6 Front view diagram;

[0045] Figure 8 forFigure 6 The working intention of the lifting mechanism in the middle;

[0046] Figure 9 This is a schematic diagram of the structure of an electrolytic cell assembly device provided in an embodiment of the present invention;

[0047] Figure 10 This is a schematic diagram of the mounting base and lifting mechanism of an electrolytic cell assembly device provided in an embodiment of the present invention;

[0048] Figure 11 A schematic diagram of a support tension bolt for a lifting mechanism provided in an embodiment of the present invention;

[0049] Figure 12 A schematic diagram of the elastic element of the lower locking component of a lifting mechanism provided in an embodiment of the present invention;

[0050] Figure 13 A schematic diagram of a lifting mechanism with a set of elastic elements provided in an embodiment of the present invention;

[0051] Figure 14 A schematic diagram of a tightening nut for a lifting mechanism provided in an embodiment of the present invention;

[0052] Figure 15 This is a schematic diagram of the structure of a driving component of a lifting mechanism provided in an embodiment of the present invention.

[0053] Reference numerals in the attached figures: 1 is the tension bolt, 2 is the upper end pressure plate, 3 is the electrolysis chamber, 4 is the lower end pressure plate, 5 is the lower locking component, 51 is the elastic element, 52 is the nut, 6 is the mounting base, 61 is the base plate, 62 is the support component, 7 is the upper locking component, 8 is the lifting mechanism, 81 is the lifting plate, 811 is the limiting hole, 812 is the through hole, 82 is the driving component, 821 is the lifting cylinder, 822 is the chain, 823 is the sprocket, 824 is the guide slider, 825 is the connecting plate, 826 is the guide plate, 83 is the positioning component, 831 is the positioning base, 832 is the guide sleeve, 9 is the lifting platform, and 10 is the upper end plate. Detailed Implementation

[0054] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0055] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0057] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., 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 invention and simplifying the description, 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 this invention.

[0058] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 according to the specific circumstances.

[0059] See Figures 2-10This invention provides an electrolytic cell assembly device, including a mounting base 6, a lifting platform 9, and a lifting mechanism 8. The mounting base 6 has a supporting surface for supporting electrolytic cells stacked sequentially from bottom to top. The lifting platform 9 is located around the mounting base 6 and is used to lift and support operators, facilitating the assembly of the electrolytic cells at different heights. The lifting mechanism 8 includes a lifting plate 81 and multiple positioning components 83. The lifting plate 81 is located below the supporting surface, and the multiple positioning components 83 are disposed on the lifting plate 81. The positioning element 83 is used to radially and axially position the lower end of the tension bolt 1; the lifting drive end of the drive component 82 is connected to the lifting plate 81 and is used to drive the lifting plate 81 to rise and fall; multiple positioning elements 83 form multiple axial positioning surfaces of different heights for axially positioning the tension bolt 1, that is, the distance from the axial positioning surface of the positioning groove of different positioning elements 83 to the top surface of the lifting plate 81 is different. It can be that the distance from the axial positioning surface of each positioning element 83 to the top surface of the lifting plate 81 is different, or it can be partially the same and partially different.

[0060] The working process of this electrolytic cell assembly equipment is as follows:

[0061] like Figures 2-8 As shown, above the support surface of the mounting base 6, a lower end pressure plate 4 and multiple electrolytic chambers 3 are stacked sequentially from bottom to top. The support surface of the mounting base 6 directly supports and contacts the lower end pressure plate 4. The electrolytic chamber 3 can be composed of layers of electrode plates, gaskets, diaphragms, and gaskets. The electrode plate closest to the lower end pressure plate 4 is the lower end electrode plate, and the electrode plate closest to the upper end pressure plate 2 is the upper end electrode plate 10. The electrode plate located between the lower and upper end electrode plates can be a bipolar plate.

[0062] Next, multiple tension bolts 1 are moved from the side of the electrolytic cell assembly equipment to above the lower end pressure plate 4, and the lower ends of the tension bolts 1 are moved downward through the lower end pressure plate 4, with the lower ends of the tension bolts 1 abutting against the positioning element 83 of the lifting mechanism 8, as shown. Figure 11As shown, the positioning element 83 corresponds to the position of multiple tension bolts 1 one by one. The positioning element 83 positions the lower end of the tension bolt 1 in the axial and radial directions. Since there is a height difference between the axial positioning surfaces of different positioning elements 83 used for axial positioning of the tension bolt 1, the upper end surfaces of different tension bolts 1 are not coplanar and there is a height difference. Next, the upper end pressure plate 2 is hoisted above the electrolysis chamber 3 on the upper level. The upper end pressure plate 2 is then moved downwards. During its descent, the upper ends of the tension bolts 1 are aligned with the through holes on the upper end pressure plate 2 and passed through. Specifically, as the upper end pressure plate 2 gradually descends, the distance between the upper end face of different tension bolts 1 and the upper end pressure plate 2 varies. Only one or a few tension bolts 1 closest to the upper end pressure plate 2 need to be aligned to match the through holes. This process is repeated until the upper ends of all tension bolts 1 have passed through the upper end pressure plate 2. Afterwards, the lifting plate 81 and positioning component 83 simultaneously lift each tension bolt 1, adjusting the length of the tension bolts 1 passing through the upper end pressure plate 2, thus completing the locking and fixing of the upper ends of the tension bolts 1 by the upper locking component 7. Figure 4 As shown. Then, the lifting plate 81 and the positioning member 83 are lowered, disengaging from the lower end of the tension bolt 1. Specifically, the lifting plate 81 can be lowered to the lowest position or any other position, so that a space is formed between the lifting plate 81 and the lower end of the tension bolt 1 for placing the elastic element 51 of the lower locking member 5 (such as a stacked spring assembly (multiple spring structures stacked together), disc spring, leaf spring, and compression spring, etc.) and for installation operations. Then, the lower locking member 5 is locked and fixed to the lower end of the tension bolt 1.

[0063] As can be seen from the above, compared with the existing assembly equipment that only has a mounting base, the assembly equipment of this application, after the lower end of the tension bolt 1 passes through the lower end pressure plate 4, can abut against the positioning element 83 of the lifting mechanism 8. The positioning element 83 positions the lower end of the tension bolt 1 axially and radially, which allows the tension bolt 1 to be introduced before stacking the upper end pressure plate 2. The tension bolt 1 does not need to be hoisted above the upper end pressure plate 2, but only needs to be moved from the side to above the lower end pressure plate 4, which greatly shortens the hoisting stroke of the tension bolt 1 in the height direction and reduces the lifting height of the tension bolt 1, thereby reducing the height of the electrolytic cell installation workshop and reducing the engineering construction cost. At the same time, when installing the upper end pressure plate 2, since multiple positioning elements 83 form multiple axial positioning surfaces of different heights for axial positioning of the tension bolt 1, the upper end surfaces of different tension bolts 1 are not coplanar and there is a height difference. As the upper end plate 2 gradually descends, the distance between the upper end face of different tension bolts 1 and the upper end plate 2 varies. Only one or a few tension bolts 1 closest to the upper end plate 2 need to be aligned and aligned with the through holes on the upper end plate 2. This allows the tension bolts 1 at different heights to pass through the upper end plate 2 sequentially and quickly. Only one or a few operators are needed for alignment, compared to the existing method requiring nine people to simultaneously align 18 tension bolts. This application eliminates the need for additional operators to simultaneously align all tension bolts 1, thus saving manpower, simplifying the alignment operation, and improving assembly efficiency. The lifting mechanism 8 can simultaneously lift the tension bolts 1 and uniformly assemble the lower locking components 5, improving assembly efficiency and saving manpower.

[0064] Furthermore, in this embodiment, the axial positioning surface of each positioning member 83 is at a different height from the lifting plate 81, and the axial positioning surface of the positioning member 83 increases from the lifting plate 81 along the circumferential arrangement of the tension bolts 1. Thus, the height of the upper end face of the tension bolts 1 increases in a stepwise manner, and the alignment operation is more convenient when the tension bolts 1 are arranged in a circumferential order.

[0065] Furthermore, in this embodiment, the lifting plate 81 has multiple through holes 812 corresponding to multiple tension bolts 1, and the positioning member 83 is detachably connected to the through holes 812. The working process of the lifting mechanism 8 is as follows:

[0066] When the positioning component 83 is normally positioned on the lower end of the tension bolt 1, the positioning component 83 is installed on the through hole 812 of the lifting plate 81, and the lifting plate 81 and the positioning component 83 are raised and lowered together as a whole. After the upper locking component 7 is locked and fixed to the upper end of the tension bolt 1, the lifting plate 81 and the positioning component 83 are lowered together, so that the positioning component 83 is disengaged from the lower end of the tension bolt 1. Then, the positioning component 83 is removed from the through hole 812 of the lifting plate 81, so that the through hole 812 is not blocked by the positioning component 83 and is in a state of vertical continuity. Then, the lower locking component 5 is locked and fixed to the lower end of the tension bolt 1 at the through hole 812, which facilitates the installation of the lower locking component 5, improves assembly efficiency, and saves manpower.

[0067] Considering the elastic element 51 and nut 52 at the lower end of the tension bolt 1, each tension bolt 1 needs to be installed and tightened individually, resulting in a long installation time. In particular, when installing the elastic element 51 and nut 52 at the lower end of the tension bolt 1, the operator needs to squat down to support the elastic element 51, leading to high labor intensity and poor safety. Figure 6 , Figures 12-14 As shown, further, in this embodiment, the through hole 812 on the lifting plate 81 allows the lower end of the tension bolt 1 and the nut 52 of the lower locking member 5 to pass through, but does not allow the elastic element 51 of the lower locking member 5 to pass through.

[0068] When the electrolytic cell assembly equipment is in operation, after the upper end of the tension bolt 1 is locked and fixed by the upper locking component 7, when the lower part of the tension bolt 1 is locked and fixed, the lifting plate 81 and the positioning component 83 descend, disengaging from contact with the lower end of the tension bolt 1. Specifically, the lifting plate 81 can be lowered to the lowest position or any other position, so that a space is formed between the lifting plate 81 and the lower end of the tension bolt 1, which can accommodate the elastic element 51 (such as a stacked spring assembly, disc spring, leaf spring, and compression spring) of the lower locking component 5. Afterwards, the positioning component 83 is removed from the through hole 812 of the lifting plate 81, so that the through hole 812 is not blocked by the positioning component 83 and is in a vertically open state. The elastic elements 51 of each lower locking component 5 are placed at the corresponding through hole 812 positions on the lifting plate 81. Figure 12 As shown. Then, the drive component 82 drives the lifting plate 81 to rise, causing each elastic element 51 to rise synchronously and correspondingly fit onto the lower end of each tension bolt 1. The lower end of the tension bolt 1 passes through the through hole 812, as shown. Figure 13 As shown. Finally, tighten the nut 52 of the lower locking component 5, as shown. Figure 14 As shown.

[0069] As can be seen from the above, during the installation of the lower locking component 5, compared to the traditional manual process of installing the lower locking component 5 one by one at the lower end of each tension bolt 1, this embodiment eliminates the need for operators to squat down and lift the elastic element 51 for installation to prevent the elastic element 51 from falling while simultaneously installing the nut 52. This application uses a lifting plate 81 to simultaneously lift and install the elastic element 51 corresponding to each tension bolt 1 onto the tension bolt 1. The lower end of the tension bolt 1 passes through the through hole 812 on the lifting plate 81 to lock the nut 52, greatly reducing labor intensity, improving operational safety, and increasing assembly efficiency. By supporting the elastic element 51 with the lifting mechanism 8, it is beneficial to align all elastic elements 51 when using the lower locking component 5 to lock the electrolytic cell, avoiding misalignment.

[0070] Of course, the lifting plate 81 may not have the through hole 812, and the positioning part 83 may be fixedly integrated with the lifting plate 81. This can achieve the positioning and lifting operation of the lower end of the tension bolt 1, but the lower end of the tension bolt 1 needs to be installed with the lower locking part 5 one by one.

[0071] like Figure 11 As shown, in some embodiments, the positioning element 83 includes a positioning base 831, which is detachably connected to the through hole 812. The positioning base 831 has a positioning groove at its center for positioning the lower end of the tension bolt 1. The bottom of the positioning groove is an axial positioning surface, and the sidewall of the positioning groove is a radial positioning surface. The diameter of the positioning groove is slightly larger than the diameter of the lower end of the tension bolt 1 for better radial positioning. With this configuration, the positioning groove in the positioning base 831 supports and positions the lower end of the tension bolt 1. The height difference between different positioning elements 83 is achieved by setting positioning bases 831 of different heights.

[0072] like Figure 6 and Figure 7 As shown, in some embodiments, the positioning member 83 further includes a guide sleeve 832 disposed in the opening of the positioning groove. For example, the guide sleeve 832 and the positioning groove can be fixed by insertion or by thread. The upper port diameter of the guide sleeve 832 is larger than the lower port diameter, forming a chamfer. This configuration facilitates the smooth insertion of the lower end of the tension bolt 1 into the positioning groove for positioning. The guide sleeve 832 can be made of non-metallic material to reduce wear on the tension bolt 1 during insertion.

[0073] like Figure 11As shown, in some embodiments, the outer wall of the positioning member 83 is provided with an overlapping structure, through which the positioning member 83 overlaps with the edge of the through hole 812. For example, the overlapping structure can be a flange protruding from the outer wall of the positioning member 83, or a shoulder structure formed on the positioning member 83. Specifically, the overlapping structure is located on the positioning base 831. The positioning member 83 is then detachably inserted and fixed in the through hole, and the axial positioning of the positioning member 83 on the lifting plate 81 is achieved through the overlapping structure.

[0074] In other embodiments, the positioning element 83 is threaded to the through hole 812. Specifically, the positioning element 83 is provided with external threads, and the through hole 812 is provided with internal threads, and the positioning element 83 is threaded to the through hole 812. With this configuration, the positioning element 83 achieves a detachable connection through a threaded connection.

[0075] In other embodiments, while the positioning member 83 is threadedly connected to the through hole 812, the positioning member 83 is also provided with an overlapping structure. The overlapping structure enables further axial positioning of the positioning member 83 and the through hole 812, thereby improving the axial support strength when the positioning member 83 is connected to the lifting plate 81.

[0076] For example, such as Figure 11 As shown, the positioning base 831 can be a positioning bracket, which has a positioning groove and a flange on its edge, overlapping the edge of the through hole 812. Alternatively, as... Figure 6 As shown, the positioning base 831 is a positioning post with a positioning groove, and the positioning post is threadedly connected to the through hole 812. Alternatively, the positioning base 831 is an insert ring, which is a ring-shaped structure with a positioning groove at its center. The bottom of the positioning groove is an annular plane, and the insert ring is inserted into the through hole 812. As long as the positioning of the tension bolt 1 and the detachable connection of the positioning base 831 to the through hole 812 can be achieved, it is not limited to the structural forms listed in this embodiment.

[0077] like Figure 10 and Figure 15 As shown, in some possible implementations, the mounting base 6 includes a base plate 61 and a support member 62. One end of the support member 62 is fixed to the base plate 61, and the other end has a support surface. A lifting plate 81 is located around the support member 62. Thus, the base plate 61 can be placed on the ground, and the support surface of the support member 62 is used to stably support the lower end pressure plate 4, ensuring the stable stacking of the electrolytic cells from bottom to top. There is a certain height difference between the support surface and the base plate 61 to provide lifting space for the lifting plate 81. The lifting plate 81 is located around the support member 62, directly below the location of the tension bolt 1.

[0078] In some embodiments, the support member 62 includes multiple support columns arranged circumferentially, with their top surfaces coplanar to form an intermittent annular support surface that supports the lower end pressure plate 4. Thus, the multiple circumferentially arranged support columns provide stable support while reducing the volume and material requirements of the support member 62. Furthermore, the area enclosed by the support columns can accommodate some components of the lifting mechanism 8, improving space utilization. Of course, the support member 62 can also be a single, integral support block with a complete support surface, as long as it provides stable support; it is not limited to the structure of the mounting base 6 listed in this embodiment.

[0079] like Figure 6 , Figure 10 and Figure 15 As shown, in some embodiments, the lifting plate 81 is an annular plate surrounding the support member 62. The annular plate, as a whole, can synchronously support and raise / lower each tension bolt 1, improving the consistency of the lifting height of the lifting plate 81. Of course, the lifting plate 81 can also comprise multiple plates arranged circumferentially around the support member 62, with each plate driven to rise and fall by a driving component 82, as long as the synchronous rising and falling of multiple plates ensures a consistent lifting height.

[0080] Furthermore, in this embodiment, when the support member 62 includes multiple support columns arranged in a circumferential direction, a limiting hole 811 corresponding to the support column is provided on the annular plate, or a limiting notch corresponding to the support column is provided on the inner edge of the annular plate. This configuration can achieve circumferential limiting between the annular plate and the support member 62, improve the stability of the annular plate's lifting and lowering, and ensure the alignment accuracy of the tension bolt 1.

[0081] In some possible implementations, the lifting mechanism 8 further includes a drive component 82, the lifting drive end of which is connected to the lifting plate 81 for driving the lifting plate 81 to rise and fall. Preferably, the drive component 82 includes a lifting cylinder 821, the lifting end of which is connected to the lifting plate 81. For example, the lifting cylinder 821 can be a hydraulic cylinder, an electric cylinder, or a pneumatic cylinder, and a suitable lifting cylinder 821 can be selected as needed. When the support member 62 includes multiple support columns, the lifting cylinder 821 can be fixed to the base plate 61, can be disposed inside the annular plate, or can be disposed outside the annular plate. The annular plate is driven to rise and fall by one or more lifting cylinders 821. Preferably, the multiple lifting cylinders 821 are evenly distributed along the circumference of the annular plate to improve the stability of the lifting.

[0082] like Figure 15As shown, in this embodiment, the drive component 82 further includes a sprocket 823 and a chain 822; wherein, the sprocket 823 is rotatably connected to the lifting end of the lifting cylinder 821 around its axis, and the axis of the sprocket 823 is horizontally set; one end of the chain 822 is fixed relative to the fixed end of the lifting cylinder 821. Specifically, one end of the chain 822 can be fixed to the fixed end of the lifting cylinder 821 or the base plate 61, and the other end passes over the top of the sprocket 823 and is connected to the lifting plate 81.

[0083] During operation, the lifting end of the lifting cylinder 821 rises and falls, driving the sprocket 823 to rise and fall together, which in turn drives the movable end of the chain 822 to rise and fall. The movable end of the chain 822 drives the lifting plate 81 to rise and fall. The lifting cylinder 821 is connected to the lifting plate 81 through the chain 822 and the sprocket 823, which facilitates the arrangement of the lifting cylinder 821. It can be set inside the annular plate, saving space.

[0084] Furthermore, the drive component 82 also includes a guide plate 826 and a guide slider 824. The guide plate 826 is fixedly disposed relative to the fixed end of the lifting cylinder 821. Specifically, the guide plate 826 can be fixed on the base plate 61 or the ground. The guide plate 826 has a vertical guide structure. For example, the vertical guide structure can be a guide rail or a guide groove. The guide slider 824 moves and cooperates with the vertical guide structure in the vertical direction. The guide slider 824 has a guide groove that cooperates with the guide rail or a guide rail that cooperates with the guide groove. The guide slider 824 is connected to the lifting plate 81.

[0085] By adopting the above technical solution, the guide plate 826 and guide slider 824 can provide stable vertical guidance for the lifting of the jacking plate 81, improving the stability and directional accuracy of the lifting of the tension bolt 1. This also improves assembly precision.

[0086] Furthermore, in this embodiment, the drive component 82 also includes a connecting plate 825, which connects the lifting plate 81 and the guide slider 824. The movable end of the chain 822 is connected to the connecting plate 825. The connecting plate 825 facilitates the connection between the lifting plate 81 and the guide slider 824, as well as between the chain 822 and the lifting plate 81.

[0087] This invention also provides an electrolytic cell assembly method, which can use the electrolytic cell assembly equipment described in any of the above embodiments. The electrolytic cell assembly method includes the following steps:

[0088] Step S100, as follows Figure 2As shown, above the support surface of the mounting base 6, a lower end pressure plate 4 and multiple electrolytic chambers 3 are stacked sequentially from bottom to top. The support surface of the mounting base 6 directly supports and contacts the lower end pressure plate 4. Each electrolytic chamber 3 can be composed of layers of electrode plates, gaskets, diaphragms, and gaskets. The electrode plate closest to the lower end pressure plate 4 is the lower end electrode plate, and the electrode plate closest to the upper end pressure plate 2 is the upper end electrode plate 10. The electrode plate between the lower and upper end electrode plates can be a double electrode plate. In actual assembly, the stacking is repeated until only the upper end pressure plate 2 remains. However, if the distance the tension bolt 1 extends sufficiently below the lower end pressure plate 4, the stacking can also be repeated until only a small number of electrolytic chambers 3 and the upper end pressure plate 2 remain.

[0089] In step S200, multiple tension bolts 1 are moved downward through the lower end pressure plate 4. Specifically, the tension bolts 1 can be moved one by one from the side of the electrolytic cell assembly equipment to the top of the lower end pressure plate 4 and passed downward through the lower end pressure plate 4 until all tension bolts 1 are arranged and inserted around the circumference of the electrolytic cell in the same way.

[0090] Step S300, as follows Figure 8 As shown, the lower ends of multiple tension bolts 1 are positioned so that there is a height difference between the upper end faces of the multiple tension bolts 1. For example, the lower ends of each tension bolt 1 can be positioned by positioning members 83 that are set at different heights on the lifting plate 81.

[0091] Step S400, as follows Figure 3 and Figure 8 As shown, the upper end plate 2 is moved above the upper electrolysis chamber 3, and then the upper end plate 2 is moved downward.

[0092] In step S500, the tension bolts 1 are aligned with the corresponding through holes in the upper end pressure plate 2 and passed through them in descending order of their upper end faces. The specific operation process can be referred to the description in the above embodiment of the electrolytic cell assembly equipment, and will not be repeated here.

[0093] After that, as Figure 4 , Figure 5 and Figure 9 As shown, the lifting plate 81 and positioning member 83 are driven by the driving component 82 to synchronously lift the tension bolt, so that the upper end of the tension bolt extends sufficiently beyond the upper end pressure plate 2. The upper end of the tension bolt 1 is locked and fixed by the upper locking component 7, and the lower end of the tension bolt 1 is locked and fixed by the lower locking component 5. Finally, a tighter tightening force is applied to the upper locking component 7 and the lower locking component 5, and the tension bolt 1 applies a pressing force to the upper end pressure plate 2 and the lower end pressure plate 4 to ensure the sealed assembly of the electrolytic cell.

[0094] When the above technical solution is adopted, after assembling the tension bolts 1 and stacking the upper end plate 2, as the upper end plate 2 gradually descends, due to the height difference between the upper surfaces of different tension bolts 1, the distance between different tension bolts 1 and the upper end plate 2 is different. It is only necessary to straighten and align one or a few tension bolts 1 closest to the upper end plate 2 each time to align with the through holes on the upper end plate 2, so that tension bolts 1 at different height positions can pass through the upper end plate 2 one by one. Only one or a few operators are needed to straighten and align them, instead of more operators to straighten and align all tension bolts 1 at the same time. Therefore, manpower is saved, the alignment operation is simple, and the assembly efficiency is improved.

[0095] Further, in this embodiment, the step S300 of positioning the lower ends of the plurality of tension bolts 1 specifically includes: positioning the lower ends of the plurality of tension bolts 1 in a stepped manner along the circumferential arrangement direction of the tension bolts 1. For example, as... Figure 6 As shown, by setting the height of these positioning parts 83 along the circumferential arrangement direction of the tension bolt 1 to a stepped increase, after the lower end of the tension bolt 1 is positioned by the positioning parts 83, the height position of the upper end face of the tension bolt 1 is stepped. According to the circumferential arrangement sequence of the tension bolt 1, the alignment operation is more convenient.

[0096] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0097] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An electrolytic cell assembly device, characterized in that, include: The mounting base has a support surface for supporting electrolytic cells stacked sequentially from bottom to top, and the electrolytic cells include multiple tension bolts; A lifting mechanism includes a lifting plate and multiple positioning elements, the multiple positioning elements being disposed on the lifting plate; the multiple positioning elements are used for radial and axial positioning of the lower end of the tension bolt; the multiple positioning elements form multiple axial positioning surfaces of different heights for axial positioning of the tension bolt.

2. The electrolytic cell assembly equipment according to claim 1, characterized in that, The lifting plate has multiple through holes corresponding to multiple tension bolts, and the positioning element is detachably connected to the through holes.

3. The electrolytic cell assembly equipment according to claim 2, characterized in that, The electrolytic cell further includes an upper locking component and a lower locking component, which each includes an elastic element and a nut; the through hole allows the lower end of the tension bolt and the nut of the lower locking component to pass through, but does not allow the elastic element of the lower locking component to pass through.

4. The electrolytic cell assembly equipment according to claim 2, characterized in that, The positioning element includes a positioning base, which is detachably connected to the through hole, and the positioning base is provided with a positioning groove for positioning the lower end of the tensioning bolt.

5. The electrolytic cell assembly equipment according to claim 4, characterized in that, The positioning component also includes a guide sleeve disposed in the opening of the positioning groove.

6. The electrolytic cell assembly equipment according to claim 2, characterized in that, The outer wall of the positioning member is provided with an overlapping structure, and the positioning member overlaps with the edge of the through hole through the overlapping structure; And / or, the positioning element is threaded into the through hole.

7. The electrolytic cell assembly equipment according to claim 1, characterized in that, The lifting plate is an annular plate, and the mounting base includes: Base plate; The support member has one end fixed to the base plate and the other end having the support surface, and the annular plate is arranged around the support member.

8. The electrolytic cell assembly equipment according to claim 7, characterized in that, The support member includes multiple support columns arranged in a circumferential direction, and the top surface of the multiple support columns forms the support surface.

9. The electrolytic cell assembly equipment according to claim 8, characterized in that, The annular plate has a corresponding limiting hole for passing through the support column, or the inner edge of the annular plate has a corresponding limiting notch for passing through the support column.

10. The electrolytic cell assembly equipment according to any one of claims 1-9, characterized in that, The lifting mechanism further includes a driving component, the lifting drive end of which is connected to the lifting plate and is used to drive the lifting plate to rise and fall; the driving component includes a lifting cylinder, the lifting end of which is connected to the lifting plate.

11. The electrolytic cell assembly equipment according to claim 10, characterized in that, The drive component further includes: A sprocket is rotatably connected to the lifting end of the lifting cylinder around its axis, and the axis of the sprocket is set horizontally. One end of the chain is fixed relative to the fixed end of the lifting cylinder, and the other end passes over the top of the sprocket and connects to the lifting plate.

12. The electrolytic cell assembly equipment according to claim 11, characterized in that, The drive component further includes: A guide plate is fixedly installed relative to the fixed end of the lifting cylinder, and the guide plate has a vertical guiding structure; The guide slider moves and engages with the vertical guide structure in the vertical direction, and the guide slider is connected to the lifting plate.

13. The electrolytic cell assembly equipment according to claim 12, characterized in that, The drive component also includes a connecting plate, which connects the lifting plate and the guide slider, and the movable end of the chain is connected to the connecting plate.

14. A method for assembling an electrolytic cell, characterized in that, include: Above the support surface of the mounting base, the lower end pressure plate and multiple electrolysis chambers are stacked sequentially from bottom to top; Multiple tension bolts are moved downward through the lower end pressure plate; Position the lower ends of the plurality of tension bolts so that there is a height difference between the upper end faces of the plurality of tension bolts; Move the upper end pressure plate to a position above the upper electrolysis chamber, and then move the upper end pressure plate downwards; Align the tension bolts with the corresponding through holes in the upper end pressure plate in descending order of their upper end faces and pass them through.

15. The electrolytic cell assembly method according to claim 14, characterized in that, Positioning the lower ends of the plurality of tension bolts includes: positioning the lower ends of the plurality of tension bolts in a stepped manner along the circumferential arrangement of the tension bolts.

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