A resilient detection pressure device for a sealing gasket of a strong alkali corrosion resistant hydrogen production electrolytic cell

Abstract

The utility model relates to electrolytic bath sealing gasket resilience detection technical field, concretely is a kind of resilience detection pressure-applying device of strong alkali corrosion resistant hydrogen production electrolytic bath sealing gasket, it include: base, bottom layer placing plate is provided on base, and bottom layer placing plate is used to place the sealing gasket to be detected;Bottom layer placing plate is uniformly provided with multiple sets of positioning assembly, and positioning assembly can be positioned to sealing gasket;Base is also provided with pressure-applying component, and pressure-applying component includes drive structure and lifting structure, and lifting structure includes middle layer plate and pressing plate, and drive structure includes two groups of mobiles slidingly arranged along the length direction of base symmetry, and mobile is connected with bottom layer placing plate, middle layer plate and pressing plate by connecting structure, when drive structure drives two groups of mobiles mutually away, connecting structure can drive middle layer plate and pressing plate equidistantly close to bottom layer placing plate, so that sealing gasket can be uniformly subjected to pressure, and deformation is carried out, to improve the accuracy of detection structure.

Description

Technical Field

[0001] This utility model relates to the field of elasticity testing technology for sealing gaskets in electrolytic cells, specifically a pressure testing device for elasticity testing of sealing gaskets in hydrogen production electrolytic cells resistant to strong alkali corrosion. Background Technology

[0002] Electrolytic cell gaskets must withstand a pressure of 1.61 MPa and a temperature of 90°C during operation. Insufficient resilience of the gasket can lead to increased gaps in the sealing surface, causing leakage of hydrogen-oxygen mixtures and potentially resulting in a safety accident. Therefore, resilience testing is necessary before using gaskets to ensure they can quickly return to their original shape under high pressure and high temperature conditions, maintaining their sealing performance, preventing leakage of hydrogen, oxygen, and other gases, and ensuring safe equipment operation.

[0003] Currently, the testing methods for the resilience of gaskets include: pressure release test, creep relaxation test, and electrical insulation verification. The pressure release test involves compressing the gasket to a specified deformation, holding it for a certain period, and then releasing it, measuring the residual deformation to assess the attenuation of its resilience performance.

[0004] Currently, a compression permanent deformation (CPD) meter can be used to test the resilience of gaskets. However, this process involves manually rotating the nut on the CPD meter to disassemble the upper pressure plate, placing the sample in place, and then fixing the pressure plate back in place with the nut. Rotating the nut forces the pressure plate down, applying pressure to the sample. This process is complex and only allows testing one set of samples at a time. When sampling and testing the resilience of large batches of gaskets, relying on the results of only one set of samples to assess the overall batch's resilience performance is neither representative nor accurate. Therefore, it is necessary to increase the number of samples tested, requiring the use of multiple CPD meters. However, in practice, it is difficult to ensure that each set of gaskets experiences consistent pressure, leading to invalid test results. Utility Model Content

[0005] The purpose of this invention is to provide a pressure testing device for the resilience of sealing gaskets in hydrogen electrolysis cells resistant to strong alkali corrosion, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pressure-applying device for testing the resilience of a sealing gasket in a hydrogen electrolyzer resistant to strong alkali corrosion, comprising:

[0008] A base, on which a bottom placement plate is provided, the bottom placement plate being used to place the sealing gasket to be tested;

[0009] Multiple sets of positioning components are evenly arranged on the bottom placement plate, and the positioning components can position the sealing gasket.

[0010] The base is also provided with a pressure application component, which includes a driving structure and a lifting structure. The lifting structure includes a middle layer plate and a pressure plate. The driving structure includes two sets of movable parts that are symmetrically slidably arranged along the length of the base. The movable parts are connected to the bottom placement plate, the middle layer plate and the pressure plate through a connecting structure. When the driving structure drives the two sets of movable parts to move away from each other, the connecting structure can drive the middle layer plate and the pressure plate to move closer to the bottom placement plate at equal distances.

[0011] As described above, the elasticity detection pressure device for the sealing gasket of the hydrogen electrolysis cell resistant to strong alkali corrosion is as follows: multiple sets of positioning components are also evenly arranged on the middle layer plate. The positioning component includes a positioning post, which is slidably disposed in a placement groove opened on the bottom placement plate. A spring is disposed in the placement groove, with one end of the spring abutting against the bottom of the placement groove and the other end abutting against the positioning post.

[0012] The above-mentioned pressure device for testing the resilience of the sealing gasket of the hydrogen electrolysis cell resistant to strong alkali corrosion: the driving structure further includes a bidirectional lead screw, which is rotatably installed in the mounting groove opened on the base, and a knob is coaxially provided at one end of the bidirectional lead screw.

[0013] The above-mentioned pressure device for testing the resilience of the sealing gasket of the hydrogen electrolysis cell resistant to strong alkali corrosion: the moving part includes a threaded sleeve that is threadedly connected to the bidirectional lead screw, and the threaded sleeve is fixedly connected to a sliding plate that is slidably disposed on the base.

[0014] The above-mentioned pressure device for detecting the resilience of the sealing gasket of the hydrogen electrolyzer resistant to strong alkali corrosion: the connection structure includes a connector and a driving component, the driving component including a slide rod disposed on the slide plate.

[0015] The above-mentioned pressure device for testing the resilience of the sealing gasket of the hydrogen electrolysis cell resistant to strong alkali corrosion: the connecting parts include a first sleeve and a second sleeve slidably disposed on the slide rod. The first sleeve is connected to the pressure plate and the middle layer plate respectively through a first hinge rod and a second hinge rod. The second sleeve is connected to the middle layer plate and the bottom placement plate respectively through a third hinge rod and a fourth hinge rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] By setting up positioning components, multiple sets of sealing gasket samples can be placed on the bottom and middle plates at one time, and multiple sets of test values ​​can be obtained simultaneously during subsequent testing, improving testing efficiency and making it suitable for batch sampling testing of products.

[0018] Meanwhile, with the cooperation of multiple positioning components, sufficient gaps can be reserved for each gasket to ensure that the sealing gaskets will not contact or interfere with each other during the radial deformation process under pressure, so that the sealing gaskets can undergo normal and real deformation, so that the rebound data measured later is more accurate.

[0019] By setting up a pressure-applying component, the middle layer plate and the pressure plate can be driven to move downwards towards the bottom placement plate at equal intervals and synchronously. This ensures that all samples experience uniform pressure during the testing process, guaranteeing consistent testing conditions and a stable overall pressure application process. This improves the accuracy of the test results, thereby accurately reflecting and representing the resilience performance of the batch of gaskets. Attached Figure Description

[0020] Figure 1 A schematic diagram of the pressure application device for testing the resilience of the sealing gasket of a hydrogen electrolysis cell resistant to strong alkali corrosion.

[0021] Figure 2 A schematic diagram of the drive component in the pressure application device for testing the resilience of the sealing gasket of a hydrogen electrolyzer resistant to strong alkali corrosion.

[0022] Figure 3 A schematic diagram of the structure of the bidirectional lead screw and moving parts in the pressure application device for testing the resilience of the sealing gasket of the hydrogen electrolysis cell resistant to strong alkali corrosion.

[0023] Figure 4 A schematic diagram of the connection structure in the pressure application device for testing the resilience of the sealing gasket of a hydrogen electrolyzer resistant to strong alkali corrosion.

[0024] Figure 5 A schematic diagram of the positioning component in the pressure application device for testing the resilience of the sealing gasket of a hydrogen electrolyzer resistant to strong alkali corrosion.

[0025] In the diagram: 1. Base; 101. Mounting slot; 102. Scale line; 2. Two-way lead screw; 201. Knob; 3. Bottom placement plate; 4. Pressure plate; 5. Slide rod; 6. Slide plate; 7. Middle layer plate; 8. Positioning post; 801. Locking block; 9. First sleeve; 10. Second sleeve; 11. First hinge rod; 12. Second hinge rod; 13. Placement slot; 1301. Locking slot; 14. Spring; 15. Threaded sleeve; 16. Third hinge rod; 17. Fourth hinge rod. Detailed Implementation

[0026] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0027] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0028] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0029] Please see Figures 1-5 In this embodiment of the invention, a pressure-applying device for detecting the resilience of a sealing gasket in a hydrogen electrolysis cell resistant to strong alkali corrosion includes:

[0030] Base 1, on which a bottom placement plate 3 is provided, the bottom placement plate 3 being used to place the sealing gasket to be tested;

[0031] Multiple sets of positioning components are evenly arranged on the bottom placement plate 3. The positioning components can position the sealing gaskets so that the multiple sets of sealing gaskets are evenly placed on the bottom placement plate 3.

[0032] The base 1 is also provided with a pressure application component, which includes a driving structure and a lifting structure. The lifting structure includes a middle layer plate 7 and a pressure plate 4. The driving structure includes two sets of movable parts that are symmetrically slidably arranged along the length of the base 1. The movable parts are connected to the bottom placement plate 3, the middle layer plate 7 and the pressure plate 4 through a connecting structure. When the driving structure drives the two sets of movable parts to move away from each other, the connecting structure can drive the middle layer plate 7 and the pressure plate 4 to move closer to the bottom placement plate 3 at equal distances.

[0033] The middle layer plate 7 is also uniformly provided with multiple sets of positioning components. The positioning components include positioning posts 8. The positioning posts 8 are slidably disposed in the placement groove 13 opened on the bottom placement plate 3. A spring 14 is provided in the placement groove 13. One end of the spring 14 abuts against the bottom of the placement groove 13, and the other end abuts against the positioning post 8.

[0034] Preferably, please refer to Figures 1-5The bottom placement plate 3 and the middle plate 7 are evenly distributed with six sets of positioning components. In particular, the positioning post 8 is set in the shape of a frustum and the longitudinal section is a "six-shaped trapezoid". Each positioning post 8 is equidistantly provided with two sets of locking blocks 801 along its circumference. The locking blocks 801 are slidably set in the locking groove 1301 opened on the inner wall of the placement groove 13. With the cooperation of the locking groove 1301 and the locking blocks 801, the positioning post 8 can only move up and down in the vertical direction.

[0035] Furthermore, the aforementioned spring 14 is always in a compressed state, pushing the positioning post 8 to tend to move towards the outside of the placement groove 13, so that in the initial state, the positioning post 8 is higher than the bottom placement plate 3 (middle plate 7); when performing resilience testing on the sealing gasket, several sets of samples are extracted from the same batch of circular sealing gaskets, and then the samples are placed on the positioning post 8. At this time, due to the special structure of the positioning post 8, the sealing gasket automatically maintains a coaxial state with the positioning post 8, and the upper end surface of the positioning post 8 is higher than the sealing gasket.

[0036] Specifically, under the constraint of multiple sets of positioning posts 8, multiple sets of sealing gaskets can be placed on the bottom placement plate 3 and the middle plate 7, and sufficient gaps are left between adjacent sets of sealing gaskets. This ensures that during the process of the subsequent pressure application components driving the middle plate 7 and the pressure plate 4 to move towards the bottom placement plate 3 and continuously pressurize the sealing gaskets, there will be no contact interference between the sealing gaskets that are deformed outward under force. This ensures that the sealing gaskets can deform normally in the vertical and horizontal directions, so as to finally measure the true rebound amount of the sealing gaskets. At the same time, multiple sets of test values ​​can be obtained at one time. With the support of multiple sets of sample test values, the rebound performance of the batch of sealing gaskets can be more accurately reflected and represented.

[0037] Specifically, please refer to Figures 1-5 The drive structure also includes a bidirectional lead screw 2, which is rotatably mounted in a mounting groove 101 on the base 1, and a knob 201 is coaxially provided at one end of the bidirectional lead screw 2.

[0038] The movable component includes a threaded sleeve 15 threadedly connected to the bidirectional lead screw 2. The threaded sleeve 15 is fixedly connected to a sliding plate 6 slidably disposed on the base 1. With the cooperation of the sliding plate 6 and the bottom placement plate 3, the threaded sleeve 15 can only slide along the axial direction of the bidirectional lead screw 2. In particular, scale lines 102 are provided on both sides of the mounting groove 101. When the knob 201 is turned to drive the bidirectional lead screw 2 to slide the threaded sleeve 15 and the sliding plate 6 along the length direction of the base 1, the pressure on the sealing gasket can be intuitively understood by observing the scale lines 102 and the sliding plate 6, which makes it convenient for the operator to adjust the pressure according to actual needs.

[0039] For details, please refer to Figure 4 The connection structure includes a connector and a drive component, and the drive component includes a slide bar 5 disposed on the slide plate 6;

[0040] The connector includes a first sleeve 9 and a second sleeve 10 slidably disposed on the slide rod 5. The first sleeve 9 is connected to the pressure plate 4 and the middle layer plate 7 respectively through the first hinge rod 11 and the second hinge rod 12. The second sleeve 10 is connected to the middle layer plate 7 and the bottom placement plate 3 respectively through the third hinge rod 16 and the fourth hinge rod 17.

[0041] In particular, the first hinge rod 11, the second hinge rod 12, the third hinge rod 16 and the fourth hinge rod 17 mentioned above have the same length;

[0042] Initially, the two sets of sliding plates 6 are close to each other, with evenly spaced gaps between the bottom plate 3, the middle plate 7, and the pressure plate 4, allowing the operator to evenly place the sealing gasket to be tested onto the bottom plate 3 and the middle plate 7. After placement, the knob 201 is turned, driving the bidirectional lead screw 2 to move the two sets of sliding plates 6 closer together. During this process, the sliding rod 5 pulls the first sleeve 9 and the second sleeve 10 away from the bottom plate 3. Simultaneously, with the cooperation of the first hinge rod 11, the second hinge rod 12, the third hinge rod 16, and the fourth hinge rod 17, the pressure plate 4 and the middle plate 7 are pulled downwards towards the bottom plate 3 at equal intervals. During the pressing process, the pressure plate 4 and the middle layer plate 7 first contact the positioning post 8, and then push the positioning post 8 back into the placement groove 13. During this process, the sealing gasket will not shift. As the pressure plate 4 and the middle layer plate 7 continue to descend, they contact the sealing gasket and squeeze it, causing it to deform. Throughout the pressing process, due to the synchronous descent of the pressure plate 4 and the middle layer plate 7, the sealing gasket placed on the bottom placement plate 3 and the middle layer plate 7 can be subjected to the same pressure, thereby maintaining constant pressure control to improve the accuracy of the final test structure and enable operators to obtain more accurate and representative test results.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A resilient detection pressure device for a sealing gasket of a strong alkali corrosion resistant hydrogen production electrolytic cell, comprising: A base (1) is provided with a bottom placement plate (3), which is used to place the sealing gasket to be tested; characterized in that: Multiple sets of positioning components are evenly arranged on the bottom placement plate (3), and the positioning components can position the sealing gasket. The base (1) is also provided with a pressure application component, which includes a driving structure and a lifting structure. The lifting structure includes a middle plate (7) and a pressure plate (4). The driving structure includes two sets of movable parts that are symmetrically slidably arranged along the length of the base (1). The movable parts are connected to the bottom placement plate (3), the middle plate (7) and the pressure plate (4) through a connecting structure. When the driving structure drives the two sets of movable parts to move away from each other, the connecting structure can drive the middle plate (7) and the pressure plate (4) to move closer to the bottom placement plate (3) at equal distances.

2. The resilient detection pressure applying device for the sealing gasket of the strong alkali corrosion resistant hydrogen production electrolyzer according to claim 1, characterized in that, Multiple positioning components are also evenly arranged on the middle layer plate (7). The positioning components include positioning posts (8). The positioning posts (8) are slidably arranged in the placement groove (13) opened on the bottom placement plate (3). A spring (14) is arranged in the placement groove (13). One end of the spring (14) abuts against the bottom of the placement groove (13), and the other end abuts against the positioning post (8).

3. The resilience testing and pressure application device for a sealing gasket of a hydrogen electrolysis cell resistant to strong alkali corrosion according to claim 2, characterized in that, The drive structure also includes a bidirectional lead screw (2), which is rotatably mounted in a mounting groove (101) on the base (1), and a knob (201) is coaxially provided at one end of the bidirectional lead screw (2).

4. The pressure-applying device for detecting the resilience of a sealing gasket in a hydrogen electrolysis cell resistant to strong alkali corrosion, as described in claim 3, is characterized in that... The moving part includes a threaded sleeve (15) that is threadedly connected to the bidirectional lead screw (2), and the threaded sleeve (15) is fixedly connected to a sliding plate (6) that is slidably disposed on the base (1).

5. The pressure-applying device for detecting the resilience of a sealing gasket in a hydrogen electrolysis cell resistant to strong alkali corrosion, as described in claim 4, is characterized in that... The connection structure includes a connector and a drive component, the drive component including a slide bar (5) disposed on the slide plate (6).

6. The resilience testing and pressure application device for a sealing gasket of a hydrogen electrolysis cell resistant to strong alkali corrosion according to claim 5, characterized in that, The connector includes a first sleeve (9) and a second sleeve (10) slidably disposed on the slide rod (5). The first sleeve (9) is connected to the pressure plate (4) and the middle layer plate (7) respectively through the first hinge rod (11) and the second hinge rod (12). The second sleeve (10) is connected to the middle layer plate (7) and the bottom placement plate (3) respectively through the third hinge rod (16) and the fourth hinge rod (17).

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