Air tightness detection equipment for hydrogen energy pipeline

Abstract

The utility model discloses an air tightness detection device for a hydrogen energy pipeline, and belongs to the field of hydrogen energy pipelines. Comprising a workbench, a positioning mechanism arranged on the workbench, an air supply connector and a detection connector which are arranged on the workbench and correspond to the two ends of the positioning mechanism respectively, an air pump arranged in the workbench, and a pipeline used for communicating the outlet end of the air pump with the air supply connector. A display is fixedly installed on the workbench, and a pressure sensor connected with the input end of the display is arranged in the detection connector. According to the air tightness detection equipment for the hydrogen energy pipeline, the adjustable positioning mechanism is arranged between the gas supply joint and the detection joint, so that hydrogen energy pipes with different bends can be conveniently positioned, and the flexible gas supply joint and the flexible detection joint are matched, so that the hydrogen energy pipelines with any shape can be effectively connected and detected.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen energy pipelines, in particular to air tightness detection equipment for hydrogen energy pipelines. Background Art

[0002] Hydrogen pipeline refers to the pipeline system used to transport hydrogen in hydrogen energy systems. With the development and application of hydrogen energy technology, hydrogen is widely used in fuel cells, chemical production and energy storage, so it is necessary to specially design and build pipeline systems that can safely and efficiently transport hydrogen.

[0003] A Chinese utility model patent with publication number CN217111377U discloses an air tightness detection device for hydrogen automobile pipeline processing, including a mounting frame, a drive motor is fixedly installed on one side of the mounting frame, a drive rod is fixedly connected to the output end of the drive motor, and a pipe limiting unit is slidably connected to one end of the drive rod. The pipe limiting unit includes a feeding sleeve, and a plurality of equidistantly distributed limiting grooves are opened on the outer wall of the feeding sleeve.

[0004] The above-mentioned air tightness detection device for hydrogen automobile pipeline processing, by providing a feeding sleeve and arranging a plurality of limit grooves on the feeding sleeve, enables the device to simultaneously realize the sealing detection operation of multiple pipe fittings. However, due to space limitations, automobile hydrogen energy pipelines are mostly various curved pipelines that cannot be positioned by the feeding sleeve. Therefore, the above-mentioned device is not applicable and has limitations.

[0005] Therefore, an air tightness detection device for a hydrogen energy pipeline is provided to solve the above-mentioned problem. Utility Model Content

[0006] In order to solve the problem mentioned in the above background technology that the existing hydrogen energy pipeline air tightness detection equipment cannot locate the bent hydrogen energy pipe, the utility model provides an air tightness detection equipment for hydrogen energy pipeline.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A gas tightness detection device for a hydrogen energy pipeline comprises a workbench, a positioning mechanism arranged on the workbench, an air supply joint and a detection joint respectively placed on the workbench at positions corresponding to the two ends of the positioning mechanism, an air pump arranged inside the workbench, and a pipeline for connecting the outlet end of the air pump with the air supply joint, a display is fixedly installed on the workbench, and a pressure sensor connected to the input end of the display is arranged inside the detection joint.

[0009] In order to fix hydrogen energy tubes of different shapes, the positioning mechanism includes two slides that move closer to or away from each other on the workbench, a slider that moves laterally along the slides, and an elastic buckle that is rotatably connected to the top of the slider; wherein the movement directions of the slide and the slider are perpendicular to each other, and two elastic buckles that can adjust their positions on the workbench are used to adapt to hydrogen energy tubes of different curved shapes, thereby forming two stable supporting points for support and fixation.

[0010] Preferably, in order to further lock the slide seat, a first locking bolt for contacting the surface of the workbench is screwed onto the slide seat.

[0011] Preferably, in order to enable the slider to slide stably, a guide rail is fixedly mounted on the slide seat, and a slide groove adapted to the guide rail is provided on the slider.

[0012] Preferably, in order to lock the sliding block, a second locking bolt for contacting the guide rail is screwed onto the sliding block.

[0013] Preferably, in order to facilitate automatic resetting of the air supply connector and the detection connector, the pipeline is a spring hose, one end of the pipeline is connected to the outlet end of the air pump, and the other end passes through the top of the workbench and is connected to the inlet end of the air supply connector. The detection equipment also includes a winding mechanism arranged inside the workbench for resetting the detection connector.

[0014] Preferably, in order to achieve the resetting of the detection joint, the winding mechanism includes a support frame fixedly installed inside the workbench, a winding reel rotatably installed on the inner side of the support frame, and a pull rope wound around the winding reel, wherein one end of the pull rope away from the winding reel passes through the top of the workbench and is connected to the detection joint; wherein a torsion spring is arranged between the winding reel and the support frame, and both ends of the torsion spring are respectively connected to the winding reel and the support frame.

[0015] Preferably, in order to extend the service life of the pipe and the pull rope, the pipe and the pull rope are both provided with a support seat fixedly connected to the workbench, and the support seat longitudinally penetrates the top surface of the workbench.

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

[0017] The utility model overcomes the shortcomings of the prior art. An adjustable positioning mechanism is provided between the gas supply joint and the detection joint to facilitate the positioning of hydrogen energy tubes with different bends. Combined with the flexible gas supply joint and the detection joint, effective connection and detection can be performed regardless of the shape of the hydrogen energy pipeline. This flexibility enables the equipment to adapt to different working environments and requirements, improves its scope of use and practicality, and has high social use value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of an air tightness detection device for hydrogen energy pipeline;

[0020] Figure 2 This is a schematic diagram of the internal structure of a hydrogen pipeline air tightness detection device;

[0021] Figure 3 for Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 4 for Figure 1 The enlarged structural diagram at B in the middle;

[0023] Figure 5 The present invention is a structural schematic diagram of a rewinding mechanism of an air tightness detection device for hydrogen energy pipelines.

[0024] In the figure:

[0025] 1. Workbench; 11. Support seat;

[0026] 2. Positioning mechanism; 21. Sliding seat; 211. First locking bolt; 212. Guide rail; 22. Sliding block; 221. Second locking bolt; 23. Elastic buckle;

[0027] 3. Air supply connector; 4. Detection connector; 41. Pressure sensor; 5. Air pump;

[0028] 6. Pipe; 7. Display; 8. Reeling mechanism; 81. Support frame; 82. Reeling reel; 83. Pull rope; 84. Torsion spring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0030] See also Figure 1-Figure 4 The utility model provides a technical solution: an air tightness detection device for a hydrogen energy pipeline, comprising a workbench 1, a positioning mechanism 2 arranged on the workbench 1, an air supply joint 3 and a detection joint 4 respectively placed at the positions at both ends of the workbench 1 corresponding to the positioning mechanism 2, an air pump 5 arranged inside the workbench 1, and a pipe 6 for connecting the outlet end of the air pump 5 with the air supply joint 3, a display 7 is fixedly installed on the workbench 1, and a pressure sensor 41 connected to the input end of the display 7 is arranged inside the detection joint 4, wherein the air supply joint 3 and the detection joint 4 are both sealed joints.

[0031] The positioning mechanism 2 includes two slides 21 that move toward or away from each other on the workbench 1, a slider 22 that moves laterally along the slides 21, and an elastic buckle 23 that is rotatably connected to the top of the slider 22; wherein the movement directions of the slides 21 and the slider 22 are perpendicular to each other.

[0032] Among them, a first locking bolt 211 for contacting the surface of the workbench 1 is screwed on the slide seat 21, a guide rail 212 is fixedly installed on the slide seat 21, a sliding groove adapted to the guide rail 212 is opened on the slider 22, and a second locking bolt 221 for contacting the guide rail 212 is screwed on the slider 22.

[0033] When in use, the hydrogen energy tube is placed on the positioning mechanism 2 of the workbench 1. Specifically, the elastic buckle 23 rotates on the slider 22 according to the bending condition of the hydrogen energy tube, so that one part of the hydrogen energy tube can be clamped into the elastic buckle 23, and then the two slide seats 21 are slid to adjust the position of the other elastic buckle 23 corresponding to the other part of the hydrogen energy tube, and then the two slide seats 22 are slid on the respective corresponding slide seats 21 to perform further alignment adjustment, so as to ensure that the second elastic buckle 23 can smoothly clamp the hydrogen energy tube, so that the hydrogen energy tube is fixed by the two elastic buckles 23 at different positions, and finally the first locking bolt 211 and the second locking bolt 21 are tightened. The locking bolt 221 locks the slide 21 and the slider 22 respectively to complete the positioning of the hydrogen energy tube. During the inspection, the gas supply connector 3 and the detection connector 4 are respectively connected to the two ends of a qualified hydrogen energy tube, and the gas is sent into the hydrogen energy tube through the pipeline 6 by the air pump 5 to form air pressure. By controlling the running time of the air pump 5, the gas entering the hydrogen energy tube is guaranteed to be a fixed amount, and then the pressure value is displayed on the display 7 through the pressure sensor 41 in the detection connector 4. If the air pressure in the hydrogen energy tube to be detected subsequently is lower than this value, it indicates that there is a leak. In addition, both the gas supply connector 3 and the detection connector 4 use sealed connectors to further ensure the accuracy of the detection value. Example 2

[0034] Different from Example 1, Figure 2As shown, the pipeline 6 is a spring hose, one end of the pipeline 6 is connected to the outlet end of the air pump 5, and the other end passes through the top of the workbench 1 and is connected to the inlet end of the air supply connector 3. The detection equipment also includes a winding mechanism 8 arranged inside the workbench 1 for resetting the detection connector 4; after the detection work is completed and the detection connector 4 and the air supply connector 3 are disassembled, the two can be automatically stored under the action of the winding mechanism 8 and the spring hose pipeline 6 respectively to complete the reset, thereby saving manpower, and is therefore more convenient and practical.

[0035] Specifically, Figure 2 and Figure 5 As shown, the winding mechanism 8 includes a support frame 81 fixedly installed inside the workbench 1, a winding reel 82 rotatably installed on the inner side of the support frame 81, and a pull rope 83 wound around the winding reel 82, and the end of the pull rope 83 away from the winding reel 82 passes through the top of the workbench 1 and is connected to the detection connector 4; wherein, a torsion spring 84 is arranged between the winding reel 82 and the support frame 81, and the two ends of the torsion spring 84 are respectively connected to the winding reel 82 and the support frame 81; the winding reel 82 can be stabilized in the workbench 1 through the support frame 81, and due to the existence of the torsion spring 84, the pull rope 83 can be automatically retracted onto the winding reel 82, so that the detection connector 4 can be automatically pulled back by the pull rope 83 after being removed from the hydrogen energy tube, which is more labor-saving and convenient.

[0036] Furthermore, the pipe 6 and the pull rope 83 are both provided with a support base 11 fixedly connected to the workbench 1, and the support base 11 longitudinally penetrates the top surface of the workbench 1; through the protection of the support base 11, the pipe 6 and the pull rope 83 avoid direct contact with the workbench 1, avoiding friction damage, thereby extending the service life of the components.

[0037] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gas tightness detection device for a hydrogen energy pipeline, comprising a workbench (1), a positioning mechanism (2) arranged on the workbench (1), a gas supply joint (3) and a detection joint (4) respectively placed on the workbench (1) at positions corresponding to the two ends of the positioning mechanism (2), an air pump (5) arranged inside the workbench (1), and a pipeline (6) for connecting the outlet end of the air pump (5) with the gas supply joint (3), a display (7) fixedly mounted on the workbench (1), and a pressure sensor (41) connected to the input end of the display (7) is arranged inside the detection joint (4); Features: The positioning mechanism (2) comprises two slides (21) that move toward or away from each other on the workbench (1), a slider (22) that moves laterally along the slides (21), and an elastic buckle (23) that is rotatably connected to the top of the slider (22); wherein the movement directions of the slide (21) and the slider (22) are perpendicular to each other.

2. The air tightness detection device for hydrogen energy pipeline according to claim 1 is characterized in that: The sliding seat (21) is threaded with a first locking bolt (211) for contacting the surface of the workbench (1).

3. The air tightness detection equipment for hydrogen energy pipeline according to claim 1 is characterized in that: A guide rail (212) is fixedly mounted on the slide seat (21), and a slide groove adapted to the guide rail (212) is provided on the slide block (22).

4. The air tightness detection device for hydrogen energy pipeline according to claim 3 is characterized in that: A second locking bolt (221) for contacting the guide rail (212) is screwed onto the sliding block (22).

5. The air tightness detection device for hydrogen energy pipeline according to claim 1 is characterized in that: The pipeline (6) is a spring hose, one end of which is connected to the outlet end of the air pump (5), and the other end of which passes through the top of the workbench (1) and is connected to the inlet end of the air supply connector (3). The detection device also includes a reeling mechanism (8) arranged inside the workbench (1) for resetting the detection connector (4).

6. The air tightness detection equipment for hydrogen energy pipeline according to claim 5, characterized in that: The winding mechanism (8) comprises a support frame (81) fixedly mounted inside the workbench (1), a winding reel (82) rotatably mounted inside the support frame (81), and a pull rope (83) wound around the winding reel (82), wherein one end of the pull rope (83) away from the winding reel (82) passes through the top of the workbench (1) and is connected to the detection connector (4); wherein a torsion spring (84) is provided between the winding reel (82) and the support frame (81), and the two ends of the torsion spring (84) are respectively connected to the winding reel (82) and the support frame (81).

7. The air tightness detection equipment for hydrogen energy pipeline according to claim 6 is characterized in that: The pipe (6) and the pull rope (83) are both provided with a support seat (11) fixedly connected to the workbench (1), and the support seat (11) longitudinally penetrates the top surface of the workbench (1).

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