A tooling for fastening a vertical assembly alkaline water electrolyzer

Abstract

This invention discloses a tooling suitable for the vertical assembly of fasteners in an alkaline water electrolyzer, comprising: electrode plates stacked between parallel upper and lower pressure plates; tension bolts passing through the upper and lower pressure plates and arranged along their contours for fastening and limiting the stacked electrode plates; and disc spring assemblies stacked on the tension bolts and secured to the upper / lower pressure plates by tension nuts. Each disc spring assembly comprises two symmetrically arranged disc springs stacked on top of each other, and the disc springs are structurally divided into a horizontal portion, an arc-shaped edge, and a grooved contact portion. The tooling provided by this invention for the vertical assembly of fasteners in an alkaline water electrolyzer suffers from problems such as difficulty aligning the tension bolts with the bolt holes of the pressure plates during installation, easy jamming or slippage of the tension bolts when they fall, scattering of the disc spring assemblies during assembly, and irregular arrangement of the disc spring assemblies preventing the tension bolts from passing through smoothly.

Description

Technical Field

[0001] This invention relates to lifting tools, and more specifically to a tooling suitable for vertically assembling fasteners for alkaline water electrolysis cells. Background Technology

[0002] With the nation's emphasis on energy conservation and emission reduction, the development of green energy has become a top priority, among which hydrogen energy has gained significant attention and is widely considered an ultimate energy source. Electrolysis of water plays a crucial role in the hydrogen energy field, and the electrolyzer is the core equipment of the electrolysis hydrogen production system. The quality of its assembly directly affects the system's performance. The rapid development of water electrolysis hydrogen production has intensified market demand for large-scale electrolyzers. Currently, there is no mature and convenient assembly method for large-scale electrolyzers; some steps still rely on relatively primitive operating methods. Therefore, the use of tooling to efficiently complete the work in different assembly environments is particularly important. Summary of the Invention

[0003] The purpose of this invention is to provide a tooling suitable for vertically assembling fasteners for alkaline water electrolysis cells, in order to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A tooling suitable for vertically assembling fasteners for alkaline water electrolysis cells, comprising:

[0006] Electrode plates stacked between parallel upper and lower pressure plates;

[0007] Tensioning bolts are inserted through the upper and lower pressure plates and arranged along their contours to fasten and limit the stacked electrode plates;

[0008] Each tensioning bolt is provided with a stacked disc spring assembly that is abutted against the upper / lower pressure plate by a tensioning nut;

[0009] The disc spring assembly comprises two symmetrically arranged disc springs stacked together. The disc springs are structurally divided into a horizontal part, an arc-shaped edge, and a grooved contact part. The two disc springs are symmetrically arranged, and an elastic rubber pad is provided on the grooved contact part to form a cavity.

[0010] The groove-shaped contact portion is provided with a second arc-shaped support member that is symmetrically arranged and whose one end is connected to the bent portion provided on the arc-shaped side;

[0011] A first arc-shaped support is provided between the horizontal part and the second arc-shaped support;

[0012] A connecting pipe is provided between the groove-shaped contact portion and the horizontal portion through a corrugated pipe, and the connecting pipe located on the groove-shaped contact portion is connected to the chamber.

[0013] Both connecting pipes are provided with arc-shaped sealing elements extending into the corrugated pipe;

[0014] The arc-shaped sealing element opens and closes the chamber as the bellows contracts axially.

[0015] As a preferred option, it also includes:

[0016] A tooling lug assembled to the first end of the tension bolt;

[0017] The U-shaped shackles are located at both ends of the wire rope and are fitted onto the symmetrically arranged hanging ears on the tooling lifting lugs.

[0018] Preferably, the tooling lifting lug includes a fixing sleeve fitted onto the first end of the tension bolt.

[0019] Preferably, the assembly includes a disc spring cylinder that is rotatably assembled via a fixing pin, the disc spring assembly consisting of disc springs stacked inside the disc spring cylinder;

[0020] The two disc spring cylinders are also provided with movable pins that lock them together into a clamp.

[0021] Preferably, the outer arc apex of the disc spring cylinder is provided with a handle sleeve for inserting the handle.

[0022] Preferably, the system also includes a support platform on which multiple uprights are mounted, with the lower pressure plate placed on the uprights.

[0023] Preferably, a support platform tray is slidably mounted on one or more of the uprights.

[0024] Preferably, the disc spring cylinder is provided with protruding eaves at both ends, and the protruding eaves are adapted to the bending part.

[0025] In the above technical solution, the present invention provides a tooling suitable for vertical assembly of fasteners for alkaline water electrolysis cells, which has the following beneficial effects: while partially solving the problem of limited factory height, this tooling can solve the problems of multiple adjustments caused by the deviation of the reserved size of the bolts at both ends, difficulty in aligning the tension bolt with the bolt hole of the pressure plate during installation, easy jamming or slippage of the tension bolt when it falls, scattering of the disc spring assembly during assembly, and irregular arrangement of the disc spring assembly causing the tension bolt to be unable to pass smoothly. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 This is a schematic diagram of the implementation structure provided in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of the assembly structure of the fixing pin and disc spring assembly provided in an embodiment of the present invention;

[0030] Figure 4 This is a schematic cross-sectional view of the fixed pin and disc spring assembly provided in an embodiment of the present invention.

[0031] Figure 5 This is a schematic diagram of the disc spring assembly provided in an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Tooling lifting lug; 2. Fixing sleeve; 3. U-shaped shackle; 4. Wire rope; 5. Tensioner nut; 6. Tensioner bolt; 7. Upper end pressure plate; 8. Insulating sleeve; 9. Electrode plate; 10. Lower end pressure plate; 11. Support platform tray; 12. Support platform; 13. Disc spring sleeve; 14. Hand rod sleeve; 15. Hand rod; 16. Fixing pin; 17. Movable pin; 18. Disc spring assembly; 181. Horizontal part; 182. Bending part; 183. Arc-shaped edge; 184. Groove contact part; 185. Elastic rubber pad; 186. First arc-shaped support; 187. Second arc-shaped support; 188. Connecting pipe; 189. Corrugated pipe; 19. Arc-shaped sealing part. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] like Figure 1-5 As shown, a tooling suitable for vertically assembling fasteners in an alkaline water electrolysis cell includes:

[0036] Electrode 9 is stacked between the parallel-arranged upper pressure plate 7 and lower pressure plate 10;

[0037] Tensioning bolts 6 are installed on the upper pressure plate 7 and the lower pressure plate 10 and arranged along their contours to fasten and limit the stacked electrode plates 9.

[0038] Each tension bolt 6 is provided with a stacked disc spring assembly 18 which is abutted against the upper pressure plate 7 / lower pressure plate 10 by tension nuts 5;

[0039] The disc spring assembly 18 comprises two symmetrically arranged disc springs stacked together. The disc springs are divided into a horizontal part 181, an arc-shaped edge 183 and a groove-shaped contact part 184 according to their structure. The two disc springs are symmetrically arranged, and the elastic rubber pads 185 provided on the groove-shaped contact part 184 are in contact with each other, and the two groove-shaped contact parts 184 form a cavity.

[0040] The groove-shaped contact portion 184 is provided with a second arc-shaped support member 187 that is symmetrically arranged and whose one end is connected to the bent portion 182 provided on the arc-shaped edge 183;

[0041] A first arc-shaped support 186 is provided between the horizontal part 181 and the second arc-shaped support 187;

[0042] A connecting pipe 188 is provided between the groove-shaped contact portion 184 and the horizontal portion 181 through a bellows 189, and the connecting pipe 188 located on the groove-shaped contact portion 184 is in communication with the chamber.

[0043] Two connecting pipes 188 are provided with arc-shaped sealing elements 19 extending into the bellows 189;

[0044] The arc-shaped sealing element 19 opens and closes the chamber as the bellows 189 contracts axially.

[0045] Specifically, in the above embodiments, as shown in Figure 5, the disc spring assembly 18 is arranged with multiple disc springs stacked to replace the elastic damping force provided by the metal. As the disc spring assembly 18 is subjected to force, the horizontal portion 181, due to the force, reduces the distance between itself and the grooved contact portion 184, thereby causing the bellows 189 to contract. At this time, the two arc-shaped sealing members 19 contact and compress, deforming to achieve a seal. This keeps the chamber in a sealed state, thus providing a highly elastic air pressure damping force.

[0046] As a further embodiment provided by this utility model, it also includes:

[0047] Tooling lug 1 is assembled at the first end of the tension bolt 6;

[0048] The U-shaped shackles 3 are set at both ends of the wire rope 4 and are mounted on the symmetrically opened hanging ears on the tooling lifting lugs 1.

[0049] Secondly, the tooling lifting lug 1 includes a fixing sleeve 2 sleeved on the first end of the tension bolt 6.

[0050] As another embodiment of the present invention, it includes a disc spring cylinder 13 rotatably assembled by a fixing pin 16, and a disc spring assembly 18 consisting of disc springs stacked in the disc spring cylinder 13.

[0051] The two disc spring sleeves 13 are also provided with movable pins 17 that lock the two together into a clamp.

[0052] Secondly, the outer arc top of the disc spring cylinder 13 is provided with a hand rod sleeve 14 for the hand rod 15 to be inserted.

[0053] As another embodiment of this utility model, it also includes a support platform 12 on which a plurality of uprights are provided, and a lower pressure plate 10 is placed on the uprights.

[0054] Furthermore, multiple uprights are slidably equipped with support platform trays 11.

[0055] As another embodiment of this utility model, the disc spring cylinder 13 is provided with protruding eaves at both ends, and the protruding eaves are adapted to the bent portion 182.

[0056] Instructions for using the 6-piece tooling for installing tension bolts under different working conditions:

[0057] 1. If there is sufficient lifting height in the hoisting environment: the upper and lower end pressure plates 10 and electrode plates 9 of the electrolytic cell can be stacked before installing the tension bolts 6 (see figure). Figure 1 First, insert the tension bolt fixture onto the top of the tension bolt 6, and tighten the tension nut 5 to the calculated allowable length of the top bolt. Then, use the matching U-shaped shackles 3 to connect both ends of the sling wire rope 4 to the lifting lugs 1 on both sides of the fixture. Finally, pull out the movable pin 17 in the disc spring assembly 18 fixture to open the fixture, and press the disc spring assembly 18... Figure 4Sequentially place the springs into the disc spring sleeve 13, and after inspection and approval, close the fixture and insert the movable pin 17 for later use. Use a crane to lift the tension bolt 6 with the lifting wire rope 4. At this time, the bolt will be in a vertical position due to gravity. Adjust the crane to align the bolt with the bolt hole of the upper pressure plate 7. Operate the crane to lower the tension bolt 6 vertically, so that it can easily pass through the bolt hole of the upper pressure plate 7. During the descent, install the insulating sleeve 8. Continue to lower it through the bolt hole of the lower pressure plate 10 in the same way as passing through the bolt hole of the upper pressure plate. Then, place the approved spare disc spring assembly fixture on the support platform plate 11 directly below the tension bolt 6. Operate the crane to lower the tension bolt 6 vertically through the disc spring assembly 18. Lift the disc spring assembly fixture using the lever 15 until it reaches the reserved height of the lower disc spring assembly 18, and then tighten the tension nut 5. Using the support platform plate 11 to support the bottom bolt, pull out the movable pin 17 of the disc spring assembly fixture to remove the disc spring assembly fixture. Then, lower the crane to the bottom and remove the tension bolt 6 fixture. This completes the installation of the tension bolt 6 and the lower disc spring assembly 18. Repeat this process to install the remaining tension bolts 6 and the lower disc spring assembly 18. Finally, install the disc spring assembly 18 to complete the vertical installation of the electrolytic cell fasteners.

[0058] 2. In situations where lifting height is limited in the hoisting environment: After stacking the lower end pressure plate 10 and electrode plate 9 of the electrolytic cell, install the tension bolt 6. After installing the tension bolt 6, install the upper end pressure plate 7. Figure 2 First, insert the tension bolt fixture onto the top of the tension bolt 6, and tighten the tie rod nut to the calculated allowable length of the top bolt. Then, use the matching U-shaped shackles 3 to connect both ends of the sling wire rope 4 to the lifting lugs 1 on both sides of the fixture. Finally, pull out the movable pin 17 in the disc spring assembly fixture to open the fixture, and press the disc spring assembly 18... Figure 4The spring assembly fixtures are sequentially placed into the disc spring sleeve 13. After inspection and approval, the fixture is closed, and the movable pin 17 is inserted for later use. Using a crane, the tension bolt 6 is lifted via the lifting wire rope 4. The bolt will be vertical due to gravity. The crane is adjusted to align the bolt with the bolt hole in the lower pressure plate 10. The crane is then lowered vertically to easily pass through the bolt hole in the lower pressure plate 10. The approved spare disc spring assembly fixture is then placed on the support platform plate 11 directly below the tension bolt 6. The crane is then lowered vertically to pass through the disc spring assembly 18. The disc spring assembly fixture is lifted using the lever 15 until it reaches the reserved height of the lower disc spring assembly 18. The tension nut 5 is then tightened. The bottom bolt is supported by the support platform plate 11. The movable pin 17 of the disc spring assembly fixture is pulled out to remove the fixture. The crane wire rope is then lowered to the bottom, and the tension bolt 6 fixture is removed, completing the installation of the tension bolt 6 and the lower disc spring assembly 18. Follow this method to complete the installation of the remaining tension bolts 6 and the lower disc spring assembly 18 in sequence. Finally, install the upper pressure plate 7 and the upper disc spring assembly 18 to complete the vertical installation of the electrolytic cell fasteners.

[0059] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A tooling suitable for vertically assembling fasteners in an alkaline water electrolysis cell, characterized in that, include: The electrode plate (9) is stacked between the upper pressure plate (7) and the lower pressure plate (10) arranged in parallel. Tensioning bolts (6) are inserted through the upper pressure plate (7) and the lower pressure plate (10) and arranged along their contours to fasten and limit the stacked electrode plates (9). Each of the tensioning bolts (6) is provided with a stacked disc spring assembly (18) which is abutted against the upper pressure plate (7) / lower pressure plate (10) by tensioning nuts (5). The disc spring assembly (18) comprises two symmetrically arranged disc springs stacked together. The disc springs are divided into a horizontal part (181), an arc-shaped edge (183), and a groove-shaped contact part (184) according to their structure. The two disc springs are arranged symmetrically, and the elastic rubber pads (185) provided on the groove-shaped contact part (184) are in contact with each other, and the two groove-shaped contact parts (184) form a cavity. The groove-shaped contact portion (184) is provided with a second arc-shaped support member (187) that is symmetrically arranged and whose one end is connected to the bent portion (182) provided on the arc-shaped edge (183). A first arc-shaped support member (186) is provided between the horizontal part (181) and the second arc-shaped support member (187). A connecting pipe (188) is provided between the groove-shaped contact portion (184) and the horizontal portion (181) through a bellows pipe (189), and the connecting pipe (188) located on the groove-shaped contact portion (184) is connected to the chamber. The two connecting pipes (188) are provided with arc-shaped sealing elements (19) extending into the bellows (189). The arc-shaped sealing element (19) opens and closes the chamber as the bellows (189) contracts axially; Also includes: Tooling lug (1) assembled at the first end of the tension bolt (6); The U-shaped shackles (3) set at both ends of the wire rope (4) are assembled on the hanging ears symmetrically opened on the tooling lifting lugs (1); The tooling lifting lug (1) includes a fixing sleeve (2) sleeved on the first end of the tension bolt (6); Includes a disc spring cylinder (13) rotatably assembled via a fixing pin (16), the disc spring assembly (18) consisting of disc springs stacked inside the disc spring cylinder (13); The two disc spring cylinders (13) are also provided with movable pins (17) that lock the two together into a hoop. The outer arc top of the disc spring cylinder (13) is provided with a hand rod sleeve (14) for the hand rod (15) to be inserted. It also includes a support platform (12) on which multiple uprights are provided, and the lower end pressure plate (10) is placed on the uprights; Support platform trays (11) are slidably mounted on multiple of the uprights. The disc spring cylinder (13) has protruding eaves at both ends, which are adapted to the bent part (182).

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