A gas cylinder airtightness testing device

Abstract

The utility model provides a kind of gas cylinder airtightness test device, it is related to special equipment inspection technical field, including airtight detection groove, gantry, lifting frame, second gas cylinder transfer frame, gas cylinder upper bottle rack, first gas cylinder transfer frame and busbar, gantry is installed in airtight detection groove middle part, first electric push rod is installed in gantry top, lifting frame is set in airtight detection groove, lifting frame top is connected with first electric push rod, second gas cylinder transfer frame is connected with lifting frame bottom, gas cylinder upper bottle rack is connected in airtight detection groove one end, busbar is installed in gas cylinder upper bottle rack other end, first gas cylinder transfer frame is rotatably installed in gas cylinder upper bottle rack, gas cylinder supporting plate is installed in first gas cylinder transfer frame bottom, gas cylinder fixing chain is set on first gas cylinder transfer frame, the present application can solve the problem of insufficient link of current airtightness detection link, rely on manual operation, operation risk is high, and detection efficiency is low.

Description

Technical Field

[0001] This utility model relates to the field of special equipment inspection technology, specifically to a gas cylinder airtightness testing device. Background Technology

[0002] As high-pressure gas storage devices, the sealing performance of gas cylinders directly affects their safety. Currently, the gas cylinder transfer, positioning, immersion testing, and pressure control processes for airtightness testing lack coordination and largely rely on manual operation. This lack of multi-station collaboration not only poses high operational risks but also makes it difficult to achieve process-oriented control during batch testing, resulting in low testing efficiency. Utility Model Content

[0003] To overcome the problems in the background technology, this utility model provides a gas cylinder airtightness testing device, which solves the problems of insufficient connection in the current airtightness testing process, reliance on manual operation, high operational risks, and low testing efficiency.

[0004] A gas cylinder airtightness testing device includes an airtightness testing tank, a gantry frame, a lifting frame, a second gas cylinder transfer frame, a gas cylinder upper rack, a first gas cylinder transfer frame, and a manifold. The gantry frame is installed in the middle of the airtightness testing tank, and a first electric push rod is installed on the top of the gantry frame. The lifting frame is set in the airtightness testing tank, and the top of the lifting frame is connected to the telescopic rod of the first electric push rod. The second gas cylinder transfer frame is horizontally set in the airtightness testing tank and connected to the bottom of the lifting frame. The gas cylinder upper rack is connected to one end of the airtightness testing tank, and the manifold is installed at the other end of the gas cylinder upper rack. The first gas cylinder transfer frame is rotatably mounted on the gas cylinder upper rack and can be rotated 90 degrees to horizontally overlap the top opening of the airtightness testing tank. A gas cylinder support plate is installed at the bottom of the first gas cylinder transfer frame, and a gas cylinder fixing chain is provided on the first gas cylinder transfer frame.

[0005] Furthermore, the first and second gas cylinder transfer racks include horizontal frame plates and rollers mounted on the frame plates. The rollers are installed in several rows on the frame plates, and each row of rollers forms a gas cylinder chute. The gas cylinder chute on the second gas cylinder transfer rack corresponds to the gas cylinder chute on the first gas cylinder transfer rack.

[0006] Furthermore, a second electric push rod is installed on the cylinder rack of the gas cylinder, and the telescopic rod of the second electric push rod is connected to the rotating shaft installed in the bearing of the first gas cylinder transfer rack.

[0007] Furthermore, a clamping rod is provided between the second gas cylinder transfer frame and the lifting frame, and a third electric push rod is installed on the top of the lifting frame. The clamping rod is connected to the telescopic rod of the third electric push rod.

[0008] Furthermore, one end of the manifold is connected to a high-pressure gas source via a valve body. The manifold is equipped with a detection station valve and a gas guide station valve. The detection station valve and the gas guide station valve are equipped with high-pressure hoses that can be connected to the valve port of the gas cylinder under test.

[0009] Furthermore, a surveillance camera is installed on the gantry.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. By coordinating the second gas cylinder transfer rack, the gas cylinder loading rack, the first gas cylinder transfer rack, and the electric push rod, a high degree of connection is achieved between the gas cylinder loading, transportation, and immersion testing stages, thereby reducing operational risks and improving testing efficiency.

[0012] 2. The manifold is equipped with a test station valve and a gas guide station valve, which supports switching between single-cylinder independent testing and multi-cylinder parallel testing modes. The gas guide station valve can guide half of the gas in the water tank gas cylinder into the cylinder to be tested, saving gas supply and compression time, improving work efficiency and saving energy. It can be quickly connected with a high-pressure hose to adapt to the testing needs of gas cylinders of different specifications.

[0013] 3. The gantry crane integrates a camera to collect real-time data on water bubbles during immersion. After immersion, the pressure testing process can be remotely observed through the camera to check the airtightness and ensure safety. Attached Figure Description

[0014] To clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments are explained.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the lifting frame structure of this utility model;

[0018] Figure 4 This is a front view structural diagram of the lifting frame of this utility model;

[0019] Figure 5 This is a schematic diagram of the cylinder rack structure of the present invention.

[0020] Figure 6 This is a schematic diagram of the gas cylinder transfer according to this utility model;

[0021] Figure 7 This is a schematic diagram of the airtightness detection of this utility model.

[0022] 1-Air tightness testing tank, 2-Gantry frame, 21-First electric push rod, 3-Lifting frame, 31-Third electric push rod, 4-Second gas cylinder transfer frame, 41-Roller, 42-Gas cylinder chute, 5-Gas cylinder mounting rack, 51-Second electric push rod, 6-First gas cylinder transfer frame, 61-Pattern, 62-Gas cylinder fixing chain, 7-Manifold, 71-Testing station valve, 72-Gas guide station valve, 73-High pressure hose, 8-Pressure rod, 9-Monitoring camera. Detailed Implementation

[0023] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0024] See Figure 1-7 This utility model proposes a gas cylinder airtightness testing device, including an airtightness testing tank 1, a gantry frame 2, a lifting frame 3, a second gas cylinder transfer frame 4, a gas cylinder upper rack 5, a first gas cylinder transfer frame 6, and a manifold 7. The gantry frame 2 is installed in the middle of the airtightness testing tank 1. A first electric push rod 21 is installed on the top of the gantry frame 2, which can push the lifting frame 3 to move up and down. The lifting frame 3 is set in the airtightness testing tank 1, and the top of the lifting frame 3 is connected to the telescopic rod of the first electric push rod 21. The second gas cylinder transfer frame 4 is horizontally set in the airtightness testing tank 1 and connected to the bottom of the lifting frame 3. The gas cylinder upper rack 5... The gas cylinder is connected to one end of the gas tightness testing tank 1 to perform the loading and unloading of the gas cylinder during the testing process. The manifold 7 is installed on the other end of the gas cylinder rack 5 and can be connected to the gas cylinder to be tested for pressure testing. The first gas cylinder transfer rack 6 is rotatably installed on the gas cylinder rack 5. The first gas cylinder transfer rack 6 can be rotated 90 degrees to be horizontally overlapped on the top opening of the gas tightness testing tank 1 and docked with the second gas cylinder transfer rack 4 to transfer the gas cylinder to be tested. The bottom of the first gas cylinder transfer rack 6 is equipped with a gas cylinder support plate 61 to place the gas cylinder to be tested. The first gas cylinder transfer rack 6 is equipped with a gas cylinder fixing chain 62 to fix the gas cylinder to be tested.

[0025] See Figure 1-7 The first gas cylinder transfer rack 6 and the second gas cylinder transfer rack 4 include a horizontal frame plate and rollers 41 mounted on the frame plate. The rollers 41 are installed in several rows on the frame plate, and each row of rollers 41 forms a gas cylinder slide 42. The gas cylinder slide 42 on the second gas cylinder transfer rack 4 and the first gas cylinder transfer rack 6 correspond to each other. The gas cylinder to be tested can be transferred between the first gas cylinder transfer rack 6 and the second gas cylinder transfer rack 4 through the rollers 41 and the gas cylinder slide 42.

[0026] See Figure 1-7 The cylinder rack 5 is equipped with a second electric push rod 51. The telescopic rod of the second electric push rod 51 is connected to the rotating shaft installed in the bearing of the first cylinder transfer rack 6, which facilitates the flipping of the first cylinder transfer rack 6.

[0027] See Figure 1-7 A clamping rod 8 is provided between the second gas cylinder transfer frame 4 and the lifting frame 3. A third electric push rod 31 is installed on the top of the lifting frame 3. The clamping rod 8 is connected to the telescopic rod of the third electric push rod 31, which can clamp the gas cylinder to be tested immersed in the airtightness test tank 1.

[0028] See Figure 1-7 One end of the manifold 7 is connected to a high-pressure gas source via a valve body. The manifold 7 is equipped with a test station valve 71 and a gas guide station valve 72. The test station valve 71 and the gas guide station valve 72 are equipped with high-pressure hoses 73 that can be connected to the valve port of the gas cylinder under test. The gas guide station valve can guide half of the gas in the water tank gas cylinder into the gas cylinder under test, saving gas supply and compression time.

[0029] See Figure 1-7 The gantry 2 is equipped with a monitoring camera 9, which facilitates remote monitoring of the detection process and improves safety.

[0030] Work process:

[0031] (1) Preparation

[0032] Turn on the power; turn on the instrument air source and ensure that the cylinder working pressure is 0.6-0.8 MPa; observe the pressure of the airtightness test air source (high pressure cylinder group), which should be greater than 1.1 times the airtightness test pressure of the test cylinder; turn on the air monitoring camera 9; fill the airtightness test tank 1 with clean, oil-free water.

[0033] (2) Install the test gas cylinder

[0034] Push the two test gas cylinders to position 5 on the cylinder rack and secure them.

[0035] Open the valve of the second electric push rod 51 on the cylinder rack 5, flip the first cylinder transfer rack 6 horizontally to overlap the air tightness test tank 1, start the first electric push rod 21 on the gantry 2, adjust the height of the lifting frame 3 so that the second cylinder transfer rack 4 is consistent with the first cylinder transfer rack 6, and then manually push the test cylinder into the second cylinder transfer rack 4; start the third electric push rod 31, the clamping rod 8 descends, and clamps and fixes the test cylinder.

[0036] Connect the test gas cylinder to the test station valve 71 and high-pressure hose 73 on the manifold 7 of the airtightness test tank 1; lower the lifting frame 3 into the airtightness test tank 1, and completely submerge the gas cylinder in clean, oil-free water. Slowly open the pressure gauge valve and the test station valve 71 through the operating platform away from the airtightness test tank 1. Observe whether there is any leakage at the connection of the test gas cylinder to the high-pressure hose 73 through the monitoring camera 9. If there is any leakage, close the test station valve 71, lift the gas cylinder out of the water surface, check and re-tighten the connection, and lower it back into the water tank. After there is no leakage, open the gas cylinder valve.

[0037] (3) Experiment

[0038] Slowly open the pressure gauge valve and air inlet valve on the operating platform away from the air tightness test tank 1 to allow pressure to enter the test cylinder; when the pressure in the cylinder reaches 15 MPa or 30 MPa, test the station valve 71. If there is no leakage, maintain the pressure for 2 minutes. If there is still no leakage after 2 minutes, the cylinder is judged as qualified.

[0039] If the test gas cylinder leaks, close the test station valve 71, empty the gas in the cylinder, and the leaking gas cylinder needs to be refilled or other effective sealing measures should be adopted.

[0040] If the gas cylinder is qualified, in order to improve work efficiency, the gas guiding process is adopted. Open the gas guiding station valve 72, and half of the gas in the water tank gas cylinder is introduced into the bottle to be tested for testing. When the pressure is reached, close the gas guiding station valve 72 and empty the gas in the water tank gas cylinder.

[0041] Activate the first electric push rod 21 on the gantry 2, adjust the height of the lifting frame 3 so that the gas cylinder under test rises with the second gas cylinder transfer frame 4 to the side of the airtightness testing tank 1, and unscrew the high-pressure hose 73. Push the gas cylinder onto the upper cylinder rack 5 to remove it. At this point, the airtightness test is complete. Gas cylinders that pass the airtightness test are judged to be qualified gas cylinders.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gas cylinder airtightness testing device, characterized in that: The system includes an airtightness testing tank (1), a gantry (2), a lifting frame (3), a second gas cylinder transfer frame (4), a gas cylinder upper rack (5), a first gas cylinder transfer frame (6), and a manifold (7). The gantry (2) is installed in the middle of the airtightness testing tank (1), and a first electric push rod (21) is installed on the top of the gantry (2). The lifting frame (3) is set in the airtightness testing tank (1), and the top of the lifting frame (3) is connected to the telescopic rod of the first electric push rod (21). The second gas cylinder transfer frame (4) is horizontally set in the airtightness testing tank. The bottom of the trough (1) is connected to the lifting frame (3). The cylinder rack (5) is connected to one end of the air tightness testing trough (1). The manifold (7) is installed at the other end of the cylinder rack (5). The first cylinder transfer rack (6) is rotatably installed on the cylinder rack (5). The first cylinder transfer rack (6) can be rotated 90 degrees to be horizontally connected to the top opening of the air tightness testing trough (1). The bottom of the first cylinder transfer rack (6) is equipped with a cylinder support plate (61). The first cylinder transfer rack (6) is equipped with a cylinder fixing chain (62).

2. The gas cylinder airtightness testing device according to claim 1, characterized in that: The first gas cylinder transfer rack (6) and the second gas cylinder transfer rack (4) include a horizontal frame plate and rollers (41) mounted on the frame plate. The rollers (41) are mounted in several columns on the frame plate, and each column of rollers (41) forms a gas cylinder groove (42). The gas cylinder grooves (42) on the second gas cylinder transfer rack (4) and the first gas cylinder transfer rack (6) correspond to each other.

3. The gas cylinder airtightness testing device according to claim 1, characterized in that: A second electric push rod (51) is installed on the cylinder rack (5) of the gas cylinder. The telescopic rod of the second electric push rod (51) is connected to the rotating shaft installed in the bearing of the first gas cylinder transfer rack (6).

4. The gas cylinder airtightness testing device according to claim 1, characterized in that: A clamping rod (8) is provided between the second gas cylinder transfer frame (4) and the lifting frame (3). A third electric push rod (31) is installed on the top of the lifting frame (3). The clamping rod (8) is connected to the telescopic rod of the third electric push rod (31).

5. The gas cylinder airtightness testing device according to claim 1, characterized in that: One end of the manifold (7) is connected to a high-pressure gas source through a valve body. The manifold (7) is equipped with a detection station valve (71) and a gas guide station valve (72). The detection station valve (71) and the gas guide station valve (72) are equipped with high-pressure hoses (73) that can be connected to the valve port of the gas cylinder under test.

6. The gas cylinder airtightness testing device according to claim 1, characterized in that: A monitoring camera (9) is installed on the gantry (2).

Images