Air tightness detection equipment for hydrogen energy pipeline

Abstract

The utility model relates to the technical field of hydrogen energy pipeline air tightness detection, in particular to an air tightness detection device for a hydrogen energy pipeline. An air pump is fixedly installed in the center of the side face of the air tightness detector, a detection connector is fixedly installed in the center of the side face of the air tightness detector, an air outlet pipe is arranged in the center of the interior of the detection connector, and clamping grooves are formed in the two sides of the surface of the detection connector; the clamping mechanism comprises a first clamping ring and a second clamping ring, the first clamping ring and the second clamping ring are symmetrically distributed on the periphery of the side face of the air tightness detector, one sides of the surfaces of the first clamping ring and the second clamping ring are fixedly connected with a first connecting rod and a second connecting rod, and one sides of the surfaces of the first connecting rod and the second connecting rod are fixedly connected with a first sliding block and a second sliding block. The first sliding block and the second sliding block are slidably connected to the first sliding groove and the second sliding groove, and the first clamping ring and the second clamping ring are distributed on the periphery of the outer surface of the detection connector. The first clamping ring and the second clamping ring are arranged to stably clamp the hydrogen pipeline clamped at the position of the detection connector, and the problem of loosening and falling is avoided.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen pipeline air tightness testing technology, specifically, to an air tightness testing device for hydrogen pipelines. Background Technology

[0002] Hydrogen pipelines refer to pipeline systems 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, thus requiring specially designed and constructed pipeline systems capable of safely and efficiently transporting hydrogen.

[0003] Currently available airtightness testing equipment for hydrogen pipelines typically involves connecting one end of the hydrogen pipeline to the equipment's connector. A rotatable and adjustable bearing is used to tighten the connector between the equipment and the hydrogen pipeline. However, this requires manual operation, and the bearing's rotation during tightening causes friction and wear on the hydrogen pipeline surface, which in turn affects the accuracy of the airtightness test.

[0004] Therefore, there is an urgent need for a gas tightness testing device for hydrogen energy pipelines to solve the existing technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an airtightness testing device for hydrogen energy pipelines to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention aims to provide an airtightness testing device for hydrogen energy pipelines, including an airtightness detector, a clamping mechanism, and a base plate.

[0007] An air pump is fixedly installed at the center of the side of the airtightness detector, and a test connector is fixedly installed at the center of the side of the airtightness detector. An air outlet pipe is provided at the center of the inside of the test connector, and slots are opened on both sides of the surface of the test connector.

[0008] The clamping mechanism includes a first retaining ring and a second retaining ring. The first retaining ring and the second retaining ring are symmetrically distributed around the sides of the airtightness detector. A first connecting rod and a second connecting rod are fixedly connected to one side of the surface of the first retaining ring and the second retaining ring. A first slider and a second slider are fixedly connected to one side of the surface of the first connecting rod and the second connecting rod. The first slider and the second slider are slidably connected to the first slide groove and the second slide groove. The first retaining ring and the second retaining ring are distributed around the outer surface of the detection connector.

[0009] A cylinder is fixedly installed at the center of the top of the base plate, and a connector rod is fixedly installed at the center of the inside of the cylinder.

[0010] As a further improvement to this technical solution, a display is provided at the center of the front of the airtightness detector.

[0011] As a further improvement to this technical solution, guide rail one and guide rail two are fixedly installed around the outer surface of the test connector. Snap ring one and snap ring two are distributed in a staggered manner around the outer surface of the test connector, with snap ring one and snap groove corresponding to each other in parallel.

[0012] As a further improvement to this technical solution, the first and second retaining rings slide and adjust on the surfaces of the first and second guide rails via the first and second sliders, and the first retaining ring penetrates the retaining groove and is clamped and contacted on both sides of the surface of the hydrogen energy pipeline that is clamped inside the detection connector.

[0013] As a further improvement to this technical solution, the second retaining ring is symmetrically distributed on both sides above the first retaining ring, clamping and contacting both sides of the hydrogen energy pipeline surface that is clamped to the outer surface of the detection connector.

[0014] As a further improvement to this technical solution, the positions of the plug rod and the gas outlet pipe are vertically aligned, and the diameters of the plug rod and the gas outlet pipe are matched to clamp the two ends of the hydrogen energy pipeline.

[0015] As a further improvement to this technical solution, the detection connector and the air pump are horizontally aligned, and one end of the air pump passes through the interior of the airtightness detector and is connected to one end of the air outlet pipe.

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

[0017] 1. The hydrogen pipeline uses an airtightness testing device that uses two clamping rings to securely hold the hydrogen pipeline at the testing joint, preventing it from loosening or falling off.

[0018] 2. The hydrogen pipeline uses an airtightness testing device. When the cylinder is filled with water, the airtightness of the hydrogen pipeline is tested. If there is a leak, whether there are air bubbles in the water inside the cylinder can directly indicate whether the hydrogen pipeline is damaged and causing the leak. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the airtightness detector structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the airtightness detector and the clamping mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the cylinder and the plug rod of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure of the detection connector, retaining ring one, and retaining ring two of this utility model.

[0023] The meanings of the labels in the diagram are as follows:

[0024] 100. Air tightness detector; 101. Display; 102. Air pump; 103. Detection connector; 104. Air outlet pipe; 105. Card slot;

[0025] 200. Clamping mechanism; 201. Guide rail one; 202. Slide groove one; 203. Slider one; 204. Connecting rod one; 205. Snap ring one; 206. Guide rail two; 207. Slide groove two; 208. Slider two; 209. Connecting rod two; 210. Snap ring two;

[0026] 300, base plate; 301, cylinder; 302, connector rod. Detailed Implementation

[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Please see Figure 1 - Figure 4 As shown, the purpose of this embodiment is to provide an airtightness testing device for hydrogen energy pipelines, including an airtightness detector 100, a clamping mechanism 200, and a base plate 300.

[0029] An air pump 102 is fixedly installed at the center of the side of the airtightness detector 100. A test connector 103 is fixedly installed at the center of the side of the airtightness detector 100. An air outlet pipe 104 is provided at the center of the inside of the test connector 103. Slots 105 are provided on both sides of the surface of the test connector 103.

[0030] The clamping mechanism 200 includes a first retaining ring 205 and a second retaining ring 210. The first retaining ring 205 and the second retaining ring 210 are symmetrically distributed around the sides of the airtightness detector 100. A first connecting rod 204 and a second connecting rod 209 are fixedly connected to one side of the surface of the first retaining ring 205 and the second retaining ring 210. A first slider 203 and a second slider 208 are fixedly connected to one side of the surface of the first connecting rod 204 and the second connecting rod 209. The first slider 203 and the second slider 208 are slidably connected to the first slide groove 202 and the second slide groove 207. The first retaining ring 205 and the second retaining ring 210 are distributed around the outer surface of the detection connector 103.

[0031] A cylinder 301 is fixedly installed at the center position above the base plate 300, and a plug rod 302 is fixedly installed at the center position inside the cylinder 301;

[0032] It should be noted that there are two sets of clasp 1 205 and clasp 2 210. The movement of the two sets of clasp 1 205 and clasp 2 210 is controlled by a hydraulic pump, which is fixedly installed inside the airtightness detector 100.

[0033] Furthermore, by clamping one end of the hydrogen pipeline to the detection connector 103, the outlet pipe 104 is connected to the hydrogen pipeline. The hydraulic pump is started, and the retaining ring 205 slides and adjusts on the surface of the guide rail 201 via the slider 203. At the same time, the retaining ring 210 slides and adjusts on the surface of the guide rail 206 via the slider 208, thus clamping and securing the hydrogen pipeline from all sides. The other end of the hydrogen pipeline is clamped to the insertion rod 302, which achieves a clamping and stabilizing effect on the hydrogen pipeline.

[0034] Meanwhile, the cylinder 301 is filled with water, and the hydrogen pipeline is immersed inside the cylinder 301 to conduct an airtightness test on the hydrogen pipeline. Observe whether bubbles are generated in the water inside the cylinder 301. If bubbles are generated, it indicates that there is a leak in the hydrogen pipeline; otherwise, it indicates that there is no problem with the hydrogen pipeline.

[0035] Therefore, based on the above structure, combined with Figure 1 and Figure 4 As shown, the structure of the airtightness detector 100 is further disclosed, and a display 101 is provided at the center of the front of the airtightness detector 100.

[0036] Furthermore, the air pump 102 is controlled via the display 101. After both ends of the hydrogen pipeline are fixedly engaged with the detection connector 103 and the plug rod 302, and one end of the hydrogen pipeline is fixedly engaged with the first retaining ring 205 and the second retaining ring 210, the air pump 102 injects gas into the hydrogen pipeline through the outlet pipe 104. The gas flows inside the hydrogen pipeline. Since the cylinder 301 is filled with water, when the gas flows inside the hydrogen pipeline, if there is gas leakage from inside the hydrogen pipeline, bubbles will be generated in the water inside the cylinder 301, thus indicating that there is a gas leak in the hydrogen pipeline.

[0037] Therefore, based on the above structure, combined with Figure 2 and Figure 3 As shown, the structure of the clamping mechanism 200 is further disclosed. Guide rail 1 201 and guide rail 206 are fixedly installed around the outer surface of the detection connector 103. Snap ring 1 205 and snap ring 210 are distributed in a staggered manner around the outer surface of the detection connector 103. Snap ring 1 205 and snap groove 105 are parallel and corresponding.

[0038] Furthermore, after fixing both ends of the hydrogen pipeline to the surfaces of the detection connector 103 and the plug rod 302, the hydraulic pump is started, causing the retaining ring 205 and retaining ring 210 to slide and adjust on the surfaces of the guide rail 201 and the guide rail 206. Since retaining ring 205 is located on the left and right sides of the hydrogen pipeline, and retaining ring 210 is located on the upper and lower sides of the hydrogen pipeline, and the height of retaining ring 205 is lower than the height of retaining ring 210, there will be no collision or squeezing problem when retaining ring 205 and retaining ring 210 are adjusted.

[0039] In summary, the working principle of this solution is as follows: one end of the hydrogen pipeline is clamped to the detection connector 103, corresponding to and connected to the outlet pipe 104, and the other end is clamped to the insertion rod 302. The two ends of the hydrogen pipeline are clamped and fixed to ensure stable airtightness testing of the hydrogen pipeline. At the same time, the clamping ring 205 and clamping ring 210 are set to firmly clamp the hydrogen pipeline clamped to the detection connector 103, preventing loosening and falling off.

[0040] The cylinder 301 is filled with water. The hydrogen pipeline, which is connected to one end of the plug rod 302, is inside the cylinder 301. When the airtightness of the hydrogen pipeline is tested, if there is a leak, whether air bubbles are generated by checking the water filling the cylinder 301 can directly indicate whether the hydrogen pipeline is damaged and causing the leak.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gas tightness inspection apparatus for a hydrogen energy pipeline, characterized by: It include air tightness detector (100), clamping mechanism (200) and bottom plate (300); The air pump (102) is fixedly installed at the side center position of the air tightness detector (100), a detection connector (103) is fixedly installed at the side center position of the air tightness detector (100), an air outlet pipe (104) is arranged at the inner center position of the detection connector (103), and clamping grooves (105) are formed in the surface of the detection connector (103) on both sides. The clamping mechanism (200) includes a clamping ring one (205) and a clamping ring two (210), the clamping ring one (205) and the clamping ring two (210) are symmetrically distributed around the side of the air tightness detector (100), the clamping ring one (205) and the clamping ring two (210) are fixedly connected with a connecting rod one (204) and a connecting rod two (209) on one side of the surface, the connecting rod one (204) and the connecting rod two (209) are fixedly connected with a sliding block one (203) and a sliding block two (208) on one side of the surface, the sliding block one (203) and the sliding block two (208) are slidingly connected with a sliding groove one (202) and a sliding groove two (207), and the clamping ring one (205) and the clamping ring two (210) are distributed around the outer surface of the detection connector (103). The bottom plate (300) is fixedly installed with a cylinder (301) at the upper center position, and the cylinder (301) is fixedly installed with a plug-in rod (302) at the inner center position.

2. The gas tightness inspection apparatus for hydrogen energy pipelines according to claim 1, characterized by: The air tightness detector (100) is provided with a display (101) at the front center position.

3. The apparatus according to claim 2, wherein: The detection connector (103) is fixedly installed with a guide rail one (201) and a guide rail two (206) around the outer surface, the clamping ring one (205) and the clamping ring two (210) are distributed in a staggered manner around the outer surface of the detection connector (103), and the clamping ring one (205) and the clamping groove (105) are in parallel correspondence.

4. The apparatus according to claim 2, wherein: The clamping ring one (205) and the clamping ring two (210) are slidingly adjusted on the surface of the guide rail one (201) and the guide rail two (206) through the sliding block one (203) and the sliding block two (208), the clamping ring one (205) penetrates through the clamping groove (105) and is in clamping contact with the surface of the hydrogen energy pipeline inside the detection connector (103).

5. The apparatus according to claim 4, wherein: The clamping ring two (210) is symmetrically distributed on the upper two sides of the clamping ring one (205) and is in clamping contact with the surface of the hydrogen energy pipeline clamped on the outer surface of the detection connector (103).

6. The apparatus according to claim 1, wherein: The plug-in rod (302) and the air outlet pipe (104) are vertically corresponding in position, and the diameters of the plug-in rod (302) and the air outlet pipe (104) are matched, so as to clamp the hydrogen energy pipeline at both ends.

7. The apparatus according to claim 1, wherein: The detection connector (103) and the air pump (102) are horizontally corresponding, and one end of the air pump (102) penetrates through the inside of the air tightness detector (100) and is in communication with one end of the air outlet pipe (104).

Images