A new energy liquid hydrogen valve sealing test equipment and test method

Abstract

The present invention discloses a new energy liquid hydrogen valve sealing test equipment and a test method, which relate to the technical field of valve test equipment. The present invention includes a test box and a valve body, one side inner wall of the test box is fixedly connected with a placement plate, the valve body is placed on the top of the placement plate, the top of the test box is fixedly connected with a cross plate, and the bottom of the cross plate is provided with a clamping assembly for clamping the valve body. The present invention can drive the valve body to move laterally by setting a driving assembly, and then immerse it in water to complete the detection process. The placement assembly can temporarily place the valve body, and workers no longer need to do other work, which reduces the workload of workers. At the same time, the clamping assembly can clamp both sides of the valve body and move the valve body, making the detection process faster, improving work efficiency, and easy to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of valve testing equipment, and in particular relates to a new energy liquid hydrogen valve sealing test equipment and a test method. Background Art

[0002] Liquid hydrogen is a mixture of parahydrogen and orthohydrogen. Parahydrogen and orthohydrogen have identical chemical properties, but differ in physical properties, manifested in a lower ground state energy for parahydrogen than for orthohydrogen. A mixture of orthohydrogen and parahydrogen in equilibrium at various temperatures is called equilibrium hydrogen. The equilibrium concentrations of orthohydrogen and parahydrogen vary with temperature below 273K. A mixture of orthohydrogen and parahydrogen in equilibrium above 273K is called normal hydrogen, consisting of 75% orthohydrogen and 25% parahydrogen. During liquefaction and storage, orthohydrogen is converted to parahydrogen due to autocatalysis, releasing heat and causing evaporation losses of the liquid hydrogen. Therefore, the parahydrogen content in liquid hydrogen products must be at least 95%, meaning that substantially all of the orthohydrogen must be catalytically converted to parahydrogen during liquefaction.

[0003] Valves are needed to transport liquid hydrogen, and their sealing performance needs to be tested before they are put into use. Existing testing mechanisms have the following defects:

[0004] 1. Valve inspection requires workers to perform manual inspection, resulting in low inspection efficiency and inability to work for a long time;

[0005] 2. During the inspection process, the valve may be damaged and leak. However, due to manual operation, very small leaks are difficult to detect. Summary of the Invention

[0006] The purpose of the present invention is to provide a new energy liquid hydrogen valve sealing test equipment and test method. By setting a driving component, the valve body can be driven to move horizontally, and then immersed in water to complete the detection process. The placement component can temporarily place the valve body, and workers no longer need to do other work, thereby reducing the workers' workload. At the same time, the clamping component can clamp the two sides of the valve body and move the valve body. The detection process is faster, the work efficiency is improved, and it is easy to use, solving the existing technical problems.

[0007] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] A new energy liquid hydrogen valve sealing test device includes: a test box and a valve body, wherein a placement plate is fixedly connected to an inner wall of one side of the test box, and the valve body is placed on top of the placement plate; a cross plate is fixedly connected to the top of the test box, and a clamping assembly for clamping the valve body is provided at the bottom of the cross plate;

[0009] A mounting groove is provided inside the placement plate, and a placement component for placing the valve body is provided inside the installation groove;

[0010] A driving assembly for driving the valve body to move is provided on one side of the detection box.

[0011] Optionally, the clamping assembly includes a threaded block slidably connected to the bottom of the horizontal plate, the internal sliding of the threaded block passes through two symmetrically arranged first sliding rods, the bottoms of the two first sliding rods are fixedly connected to the same connecting block, the top of the first sliding rod is fixedly connected to the first limit block, and the first limit block and the threaded block are fixedly connected to the same tension spring, and the tension spring is sleeved on the first sliding rod.

[0012] Optionally, two second sliding rods that are centrally symmetrical are inserted into the internal sliding portion of the connecting block, one end of each of the second sliding rods is fixedly connected to a clamping block, and the other end of each of the second sliding rods is fixedly connected to a second limiting block. The same second spring is fixedly connected between the second limiting block and the connecting block, and the second spring is sleeved on the second sliding rod.

[0013] Optionally, a sealing gasket is fixedly connected to each other's side of the two clamping blocks, and the sealing gasket is used in conjunction with the valve body. A notch is provided on the top of the clamping block, and the notch is used in conjunction with the second limit block.

[0014] Optionally, the placement component includes a pushing block that slides through the top of the mounting slot, the bottom of the pushing block is fixedly connected to a sliding plate, two symmetrically arranged first springs are fixedly connected between the bottom of the sliding plate and the bottom inner wall of the mounting slot, the top of the sliding plate is fixedly connected to two symmetrically arranged rectangular blocks, the top of the rectangular block is fixedly connected to a triangular block, and the two triangular blocks slide through the mounting slot and extend to the top of the placement plate.

[0015] Optionally, one side of the push block is provided with an arc-shaped groove for use with the valve body.

[0016] Optionally, the drive assembly includes a servo motor fixedly connected to one side of the detection box, the output shaft of the servo motor rotates through the detection box and is fixedly connected to a reciprocating screw, a thread groove is opened inside the thread block, and the reciprocating screw thread passes through the thread groove.

[0017] Optionally, both side inner walls of the detection box are fixedly connected with fixed side panels, the top of the placement plate is fixedly connected with two symmetrically arranged second inclined plates, the second inclined plates are fixedly connected to the fixed side panels, and one side of the placement plate is fixedly connected with a first inclined plate, and the bottom of the first inclined plate is flush with the bottom of the fixed side panel.

[0018] A new energy liquid hydrogen valve sealing test method specifically includes the following steps:

[0019] S1. Place the valve body to be tested on the placement plate and make it located on one side of the push block. At this time, start the servo motor. The output shaft of the servo motor drives the reciprocating screw to rotate, and the reciprocating screw drives the threaded block to move horizontally. The threaded block drives the connecting block to move horizontally, and the connecting block drives the two clamping blocks to move horizontally. Because the two clamping blocks conflict with the inclined surface of the second inclined plate, the two clamping blocks approach each other and gradually clamp the two ends of the valve body to prevent moisture from entering the interior of the valve body. At this time, the interior of the test box is filled with water, and the water level line is flush with the surface of the placement plate.

[0020] S2. The two clamping blocks clamp the valve body and drive the valve body forward. At this time, the clamping blocks are between the two fixed side plates and will not loosen. At the same time, the clamping blocks push the two triangular blocks to move vertically downward. The triangular blocks drive the rectangular blocks to move vertically downward. The rectangular blocks drive the sliding plate to move vertically downward and squeeze the first spring. The sliding plate drives the push block to move vertically downward. At this time, the clamping blocks can drive the valve body to continue moving forward.

[0021] S3. When the valve body moves between the two fixed side plates, since the bottom of the clamping block no longer contacts the placement plate, the connecting block moves vertically downward under the tension of the tension spring, and the connecting block drives the first slide bar and the first limit block vertically downward and drives the valve body to move vertically downward to be immersed in water. At the same time, the setting of the first inclined plate facilitates the downward movement of the device. At this time, if the device leaks, bubbles will be generated on the water surface to judge whether the device is qualified or not. When the valve body moves to one end of the test box, it will reset again until the two clamping blocks release the valve body. A new valve body can be replaced for testing, and this cycle repeats.

[0022] The embodiments of the present invention have the following beneficial effects:

[0023] By setting up a driving component, the valve body can be driven to move laterally, so that it can be immersed in water to complete the detection process. The placement component can temporarily place the valve body, and workers no longer need to do other work, which reduces the workers' workload. At the same time, the clamping component can clamp both sides of the valve body and move the valve body, making the detection process faster, improving work efficiency, and easy to use.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic diagram of a three-dimensional structure of an embodiment of the present invention;

[0027] Figure 2 A schematic top view of the structure of an embodiment of the present invention;

[0028] Figure 3 Schematic diagram of the three-dimensional structure of the detection box in one embodiment of the present invention;

[0029] Figure 4 A schematic diagram of a three-dimensional structure of a placement plate in one embodiment of the present invention;

[0030] Figure 5 A schematic diagram of the three-dimensional structure of a threaded block in one embodiment of the present invention;

[0031] Figure 6 Schematic diagram of the three-dimensional structure of the threaded block and the connecting block in one embodiment of the present invention.

[0032] In the figure: 1. detection box; 2. fixed side plate; 3. first inclined plate; 4. second inclined plate; 5. valve body; 6. threaded block; 7. servo motor; 8. reciprocating screw; 9. clamping block; 10. placement plate; 11. triangular block; 12. rectangular block; 13. sliding plate; 14. first spring; 15. mounting groove; 16. arc groove; 17. pushing block; 18. sealing gasket; 19. tension spring; 20. first limit block; 21. first slide rod; 22. second spring; 23. second limit block; 24. notch; 25. second slide rod; 26. connecting block; 27. cross plate; 28. threaded groove. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inner" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0036] Example 1

[0037] See also Figure 1-2 As shown, in this embodiment, a new energy liquid hydrogen valve sealing test device is provided, which includes a test box 1 and a valve body 5. A placement plate 10 is fixedly connected to the inner wall of one side of the test box 1, and the valve body 5 is placed on the top of the placement plate 10. A horizontal plate 27 is fixedly connected to the top of the test box 1, and a clamping assembly for clamping the valve body 5 is provided at the bottom of the horizontal plate 27;

[0038] The interior of the placement plate 10 is provided with a mounting groove 15, and the interior of the mounting groove 15 is provided with a placement component for placing the valve body 5;

[0039] A driving assembly for driving the valve body 5 to move is provided on one side of the detection box 1 .

[0040] In one aspect of this embodiment, Figure 1-2 As shown, the clamping assembly includes a threaded block 6 slidably connected to the bottom of the horizontal plate 27, and two symmetrically arranged first slide bars 21 are slidably passed through the internal part of the threaded block 6. The bottoms of the two first slide bars 21 are fixedly connected to the same connecting block 26, and the tops of the first slide bars 21 are fixedly connected to the first limit block 20. The same tension spring 19 is fixedly connected between the first limit block 20 and the threaded block 6, and the tension spring 19 is sleeved on the first slide bar 21. Optionally, two centrally symmetrical second slide bars 25 are slidably passed through the internal part of the connecting block 26, one end of each of the two second slide bars 25 is fixedly connected to the clamping block 9, and the other ends of each of the two second slide bars 25 are fixedly connected to the second limit block 23, and the same second spring 22 is fixedly connected between the second limit block 23 and the connecting block 26, and the second spring 22 is sleeved on the second slide bar 25. The present application is not limited to this.

[0041] When the valve body 5 moves between the two fixed side plates 2, since the bottom of the clamping block 9 no longer contacts the placement plate 10, the connecting block 26 moves vertically downward under the tension of the tension spring 19, and the connecting block 26 drives the first slide bar 21 and the first limit block 20 vertically downward and drives the valve body 5 to move vertically downward to be immersed in water. At the same time, the setting of the first inclined plate 3 facilitates the downward movement of the device. At this time, if the device leaks, bubbles will be generated on the water surface to judge whether the device is qualified or not. When the valve body 5 moves to one end of the detection box 1, it will reset again until the two clamping blocks 9 release the valve body 5. Then, a new valve body 5 can be replaced for testing, and so on.

[0042] In one aspect of this embodiment, Figure 1-3 As shown, the two clamping blocks 9 are fixedly connected to a sealing gasket 18 on one side close to each other. The sealing gasket 18 is used in conjunction with the valve body 5. A notch 24 is provided on the top of the clamping block 9. The notch 24 is used in conjunction with the second limit block 23.

[0043] In another aspect of this embodiment, Figure 1-3 As shown, the placement assembly includes a pushing block 17 that slides through the top of the mounting groove 15, the bottom of the pushing block 17 is fixedly connected to the sliding plate 13, two symmetrically arranged first springs 14 are fixedly connected between the bottom of the sliding plate 13 and the bottom inner wall of the mounting groove 15, the top of the sliding plate 13 is fixedly connected to two symmetrically arranged rectangular blocks 12, the top of the rectangular block 12 is fixedly connected to a triangular block 11, and the two triangular blocks 11 slide through the mounting groove 15 and extend to the top of the placement plate 10.

[0044] In other aspects of this embodiment, Figure 1-4 As shown, an arc-shaped groove 16 for cooperating with the valve body 5 is formed on one side of the push block 17 .

[0045] Example 2

[0046] Improvements based on Example 1: Refer to the attached Figure 1-3 The driving assembly includes a servo motor 7 fixedly connected to one side of the detection box 1. The output shaft of the servo motor 7 rotates through the detection box 1 and is fixedly connected to a reciprocating screw 8. A thread groove 28 is opened inside the thread block 6, and the reciprocating screw 8 is threaded through the thread groove 28. At this time, the servo motor 7 is started, and the output shaft of the servo motor 7 drives the reciprocating screw 8 to rotate. The reciprocating screw 8 drives the thread block 6 to move horizontally. The thread block 6 drives the connecting block 26 to move horizontally. The connecting block 26 drives the two clamping blocks 9 to move horizontally.

[0047] Example 3

[0048] Improvements based on Example 1: Refer to the attached Figure 5-6The inner walls on both sides of the detection box 1 are fixedly connected with fixed side panels 2, and the top of the placement plate 10 is fixedly connected with two symmetrically arranged second inclined plates 4, the second inclined plates 4 are fixedly connected to the fixed side panels 2, and one side of the placement plate 10 is fixedly connected with a first inclined plate 3, and the bottom of the first inclined plate 3 is flush with the bottom of the fixed side panel 2. Since the two clamping blocks 9 conflict with the inclined surfaces of the second inclined plates 4, the two clamping blocks 9 approach each other and gradually clamp the two ends of the valve body 5 to prevent moisture from entering the interior of the valve body 5. At this time, the interior of the detection box 1 is filled with water, and the water level is flush with the surface of the placement plate 10.

[0049] A new energy liquid hydrogen valve sealing test method specifically includes the following steps:

[0050] S1. Place the valve body 5 to be tested on the placement plate 10 and make it located on one side of the push block 17. At this time, start the servo motor 7. The output shaft of the servo motor 7 drives the reciprocating screw 8 to rotate. The reciprocating screw 8 drives the threaded block 6 to move laterally. The threaded block 6 drives the connecting block 26 to move laterally. The connecting block 26 drives the two clamping blocks 9 to move laterally. Since the two clamping blocks 9 conflict with the inclined surface of the second inclined plate 4, the two clamping blocks 9 approach each other and gradually clamp the two ends of the valve body 5 to prevent moisture from entering the interior of the valve body 5. At this time, the interior of the test box 1 is filled with water, and the water level is flush with the surface of the placement plate 10.

[0051] S2. The two clamping blocks 9 clamp the valve body 5 and drive the valve body 5 to move forward. At this time, the clamping blocks 9 are between the two fixed side plates 2 and will not loosen. At the same time, the clamping blocks 9 push the two triangular blocks 11 to move vertically downward. The triangular blocks 11 drive the rectangular blocks 12 to move vertically downward. The rectangular blocks 12 drive the sliding plate 13 to move vertically downward and squeeze the first spring 14. The sliding plate 13 drives the push block 17 to move vertically downward. At this time, the clamping blocks 9 can drive the valve body 5 to continue to move forward.

[0052] S3. When the valve body 5 moves between the two fixed side plates 2, since the bottom of the clamping block 9 no longer contacts the placement plate 10, the connecting block 26 moves vertically downward under the tension of the tension spring 19, and the connecting block 26 drives the first slide bar 21 and the first limit block 20 vertically downward and drives the valve body 5 to move vertically downward to be immersed in water. At the same time, the setting of the first inclined plate 3 facilitates the downward movement of the device. At this time, if the device leaks, bubbles will be generated on the water surface to judge whether the device is qualified or not. When the valve body 5 moves to one end of the detection box 1, it will reset again until the two clamping blocks 9 release the valve body 5. A new valve body 5 can be replaced for testing, and this cycle repeats.

[0053] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are only used to distinguish various features and have no actual order or directional meaning, and this application is not limited to this.

[0054] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0055] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A new energy liquid hydrogen valve sealing test equipment, characterized in that: include: A detection box (1) and a valve body (5), wherein a placement plate (10) is fixedly connected to an inner wall of one side of the detection box (1), the valve body (5) is placed on the top of the placement plate (10), a transverse plate (27) is fixedly connected to the top of the detection box (1), and a clamping assembly for clamping the valve body (5) is provided at the bottom of the transverse plate (27); A mounting groove (15) is provided inside the placement plate (10), and a placement component for placing the valve body (5) is provided inside the installation groove (15); A driving assembly for driving the valve body (5) to move is provided on one side of the detection box (1); The clamping assembly includes a threaded block (6) slidably connected to the bottom of the horizontal plate (27), the interior of the threaded block (6) slides through two symmetrically arranged first slide bars (21), the bottoms of the two first slide bars (21) are fixedly connected to the same connecting block (26), the tops of the first slide bars (21) are fixedly connected to the first limit block (20), and the first limit block (20) and the threaded block (6) are fixedly connected to the same tension spring (19), and the tension spring (19) is sleeved on the first slide bar (21); The connecting block (26) is internally slidably penetrated by two second sliding rods (25) that are centrally symmetrical, one end of each of the two second sliding rods (25) is fixedly connected to a clamping block (9), and the other end of each of the two second sliding rods (25) is fixedly connected to a second limiting block (23), and a second spring (22) is fixedly connected between the second limiting block (23) and the connecting block (26), and the second spring (22) is sleeved on the second sliding rod (25); The placement assembly includes a push block (17) that slides through the top of the installation groove (15), the bottom of the push block (17) is fixedly connected to a sliding plate (13), two symmetrically arranged first springs (14) are fixedly connected between the bottom of the sliding plate (13) and the bottom inner wall of the installation groove (15), the top of the sliding plate (13) is fixedly connected to two symmetrically arranged rectangular blocks (12), the top of the rectangular block (12) is fixedly connected to a triangular block (11), and the two triangular blocks (11) slide through the installation groove (15) and extend to the top of the placement plate (10); The inner walls on both sides of the detection box (1) are fixedly connected to fixed side panels (2), the top of the placement plate (10) is fixedly connected to two symmetrically arranged second inclined plates (4), the second inclined plates (4) are fixedly connected to the fixed side panels (2), and one side of the placement plate (10) is fixedly connected to a first inclined plate (3), the bottom of the first inclined plate (3) is flush with the bottom of the fixed side panel (2).

2. A new energy liquid hydrogen valve sealing test equipment as claimed in claim 1, characterized in that: The two clamping blocks (9) are fixedly connected to a sealing gasket (18) on one side close to each other, and the sealing gasket (18) is used in conjunction with the valve body (5). A notch (24) is provided on the top of the clamping block (9), and the notch (24) is used in conjunction with the second limit block (23).

3. A new energy liquid hydrogen valve sealing test equipment as claimed in claim 2, characterized in that: An arc-shaped groove (16) for use with the valve body (5) is provided on one side of the push block (17).

4. A new energy liquid hydrogen valve sealing test equipment as claimed in claim 3, characterized in that: The drive assembly comprises a servo motor (7) fixedly connected to one side of the detection box (1); an output shaft of the servo motor (7) rotates through the detection box (1) and is fixedly connected to a reciprocating screw rod (8); a thread groove (28) is provided inside the thread block (6), and the reciprocating screw rod (8) is threadedly passed through the thread groove (28).

5. A new energy liquid hydrogen valve sealing test method, characterized in that: The new energy liquid hydrogen valve sealing test equipment according to claim 4 is used, specifically comprising the following steps: S1. Place the valve body (5) to be tested on the placement plate (10) and make it located on one side of the push block (17). At this time, start the servo motor (7). The output shaft of the servo motor (7) drives the reciprocating screw (8) to rotate. The reciprocating screw (8) drives the threaded block (6) to move laterally. The threaded block (6) drives the connecting block (26) to move laterally. The connecting block (26) drives the two clamping blocks (9) to move laterally. Since the two clamping blocks (9) collide with the inclined surface of the second inclined plate (4), the two clamping blocks (9) approach each other and gradually clamp the two ends of the valve body (5) to prevent moisture from entering the interior of the valve body (5). At this time, the interior of the test box (1) is filled with water, and the water level is flush with the surface of the placement plate (10). S2, the two clamping blocks (9) clamp the valve body (5) and drive the valve body (5) to move forward. At this time, the clamping blocks (9) are between the two fixed side plates (2) and will not be loose. At the same time, the clamping blocks (9) push the two triangular blocks (11) to move vertically downward. The triangular blocks (11) drive the rectangular blocks (12) to move vertically downward. The rectangular blocks (12) drive the sliding plate (13) to move vertically downward and squeeze the first spring (14). The sliding plate (13) drives the push block (17) to move vertically downward. At this time, the clamping blocks (9) drive the valve body (5) to continue to move forward. S3. When the valve body (5) moves between the two fixed side plates (2), since the bottom of the clamping block (9) no longer contacts the placement plate (10), the connecting block (26) moves vertically downward under the tension of the tension spring (19). The connecting block (26) drives the first slide bar (21) and the first limit block (20) vertically downward and drives the valve body (5) to move vertically downward to be immersed in water. At the same time, the setting of the first inclined plate (3) facilitates the downward movement of the device. At this time, if the device leaks, bubbles will be generated on the water surface, which can be used to judge whether the device is qualified or not. When the valve body (5) moves to one end of the detection box (1), it will reset again until the two clamping blocks (9) release the valve body (5). A new valve body (5) is replaced for detection, and this cycle repeats.

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