Rapid air leakage detection device for pressure vessel

Abstract

The utility model relates to a rapid air leakage detection device for a pressure container, which belongs to the technical field of sealing detection and comprises a detection pipeline, a pressure gauge I, an air delivery hose, an air guide pipe, a high-pressure air storage tank, a box body, a movable frame and an air compressor, the threaded sleeve is connected with a plurality of installation pipes in a matched mode through threads, connecting flanges with unequal outer diameters are fixed to the other ends of the installation pipes, and a second pressure gauge is arranged on the high-pressure gas storage tank. The integral movement of the device is realized through the movable frame, the box body integrates core components such as the air compressor and the high-pressure air storage tank, the structure is compact, the device is suitable for field detection operation, the connecting pipe, the thread bushing, the mounting pipe and the connecting flange are arranged, the synchronous detection of the performance of the breather valve and the air leakage of the tank body is realized, and the detection functions are enriched.

Description

Technical Field

[0001] This utility model relates to a rapid leak detection device for pressure vessels, belonging to the field of sealing detection technology. Background Technology

[0002] Tank trucks belong to the category of mobile pressure vessels, specifically truck-mounted tankers. After production or during use, pressure and leak testing is required to check the tank's pressure resistance and leakage. This involves pressurizing the tank with air and observing for leaks, visible deformation, and abnormal noises. Current testing equipment is installed at fixed pressurization pipeline locations, requiring the tank truck to be driven to a fixed position, which is limiting. Furthermore, existing equipment cannot simultaneously and accurately test the performance of the breather valve. Utility Model Content

[0003] This invention provides a rapid leak detection device for pressure vessels, which solves the problems existing in the background art.

[0004] This utility model relates to a rapid leak detection device for pressure vessels, including a detection pipe connected to the unloading pipe port of the tank body, a pressure gauge on the detection pipe, a gas supply hose connected to the detection pipe, a gas guide pipe fixed to the other end of the gas supply hose, a high-pressure gas storage tank fixed to the other end of the gas guide pipe, a housing fixed to the high-pressure gas storage tank, a mobile frame fixed to the bottom of the housing, an air compressor fixed inside the housing, the air outlet of the air compressor connected to the high-pressure gas storage tank through a pressurization pipe, a connecting pipe connected to the high-pressure gas storage tank, a threaded sleeve fixed to the other end of the connecting pipe, multiple installation pipes threadedly connected to the threaded sleeve, and a connecting flange of different outer diameters fixed to the other end of each installation pipe, valves on the detection pipe, the gas guide pipe, the connecting pipe, and the pressurization pipe, a pressure gauge on the high-pressure gas storage tank, and quick-connect couplings at the connection ends of the gas supply hose and the detection pipe, and the connection ends of the detection pipe and the unloading pipe.

[0005] As a preferred embodiment, the top of the enclosure is fixed with a storage box for the testing pipe. The inner wall of the storage box is lined with a sponge layer, and both the bottom of the storage box and the top of the enclosure have clearance slots for the pressure gauge to extend into. The storage box provides dedicated storage for the testing pipe, preventing wear or loss caused by careless placement; the sponge layer cushions the testing pipe, reducing collision damage during transportation or storage; and the clearance slots provide space for the pressure gauge, ensuring that the testing pipe and pressure gauge can be placed together in the storage box, improving storage convenience. Furthermore, the pressure gauge is better protected when retracted into the clearance slots.

[0006] As a preferred embodiment, a support plate is fixed to the outer wall of the housing. A locking tube, which engages with the quick-connect fitting on the gas hose, is fixed to the top of the support plate and locked in place. The lower end of the locking tube is sealed. The support plate provides stable support for the locking tube. The locking tube, through its engagement with the quick-connect fitting at the end of the gas hose, effectively secures the end of the gas hose, preventing it from swinging freely when not in use, avoiding damage to the quick-connect fitting due to impact, and maintaining the neatness of the pipeline storage.

[0007] As a preferred embodiment, the upper part of the locking tube is equipped with a semi-circular clamping ring and a support ring that mate with the outer wall of the gas delivery hose. A support arm plate is fixed to the outer side of the support ring and is fixed to the outer wall of the housing. Connecting flanges are fixed to the outer ends of both the clamping ring and the support ring, and connecting bolts are provided at the connecting flanges. The support ring is fixed to the housing by the support arm plate, forming a bottom support for the gas delivery hose. The clamping ring mates with the support ring, and the connecting flanges are locked by the connecting bolts, which can form a stable clamp on the middle of the gas delivery hose, preventing the gas delivery hose from shaking freely when not in use and ensuring the stability of the quick-connect coupling connection.

[0008] As a preferred embodiment, both the clamping ring and the support ring have a rubber anti-slip layer fixed on their inner sidewalls. The rubber anti-slip layer increases the friction with the outer wall of the gas delivery hose, further preventing the gas delivery hose from sliding under clamping conditions; at the same time, the rubber material has a certain degree of elasticity, which can prevent the clamping ring and the support ring from causing hard compression damage to the outer wall of the gas delivery hose, thus extending the service life of the gas delivery hose.

[0009] As a preferred embodiment, the top of the housing is fixed with multiple threaded connecting sleeves that connect to the mounting pipes. These connecting sleeves are arranged along the front-to-back direction, and a push handle is fixed to the top of the housing on the right side of the connecting sleeves. The connecting sleeves can thread and fix unused mounting pipes, achieving orderly storage of the mounting pipes and preventing them from being lost or damaged by collisions. The arrangement of multiple connecting sleeves along the front-to-back direction saves space at the top of the housing, making the structure more compact. The push handle, together with the mobile frame at the bottom, makes it easy for operators to push the entire device forward, improving the portability of the device and adapting to the mobile needs of different testing sites.

[0010] This utility model has the following beneficial effects:

[0011] The entire device can be moved using a mobile chassis. The housing integrates core components such as an air compressor and a high-pressure gas tank. It has a compact structure and is suitable for on-site testing. It is also equipped with connecting pipes, threaded sleeves, mounting pipes, and connecting flanges to enable simultaneous testing of the breather valve performance and tank leakage, thus enriching the testing functions. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2This is a schematic diagram of the structure during the testing process of this utility model;

[0014] Figure 3 This is a schematic diagram of the top structure of the clamping ring and the support ring;

[0015] In the diagram: 1. Pressure gauge one; 2. Testing pipe; 3. Quick-connect coupling; 4. Gas delivery hose; 5. Gas guide pipe; 6. High-pressure gas storage tank; 7. Pressure gauge two; 8. Connecting pipe; 9. Threaded sleeve; 10. Installation pipe; 11. Connecting sleeve; 12. Pressurizing pipe; 13. Air compressor; 14. Housing; 15. Support plate; 16. Locking pipe; 17. Support ring; 18. Compression ring; 19. Clearance opening groove; 20. Sponge layer; 21. Placement box; 22. Tank; 23. Oil unloading pipe. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments.

[0017] Example 1, as Figures 1 to 3 As shown, this utility model is a rapid leak detection device for pressure vessels, including a detection pipe 2 connected to the unloading pipe 23 port of the tank 22, a pressure gauge 1 installed on the detection pipe 2, a gas delivery hose 4 connected to the detection pipe 2, a gas guide pipe 5 fixed to the other end of the gas delivery hose 4, a high-pressure gas storage tank 6 fixed to the other end of the gas guide pipe 5, a housing 14 fixed to the high-pressure gas storage tank 6, a plug installed inside the housing 14, a mobile frame fixed to the bottom of the housing 14, and an air compressor 13 fixed inside the housing 14. The air compressor 13 outputs gas... The port is connected to the high-pressure gas storage tank 6 through the pressurization pipe 12. The high-pressure gas storage tank 6 is connected to the connecting pipe 8. The other end of the connecting pipe 8 is fixed with a threaded sleeve 9. The threaded sleeve 9 is threadedly connected to multiple installation pipes 10. The other end of each installation pipe 10 is fixed with a connecting flange of different outer diameters. Valves are provided on the detection pipe 2, the gas guide pipe 5, the connecting pipe 8 and the pressurization pipe 12. The high-pressure gas storage tank 6 is equipped with a pressure gauge 2 7. The connection end of the gas delivery hose 4 to the detection pipe 2 and the connection end of the detection pipe 2 to the oil unloading pipe 23 are both equipped with quick-connect couplings 3.

[0018] In use, push the device to the unloading pipe 23 port of tank 22, then connect the detection pipe 2 to the unloading pipe 23 through the quick-connect coupling 3, then connect the detection pipe 2 to the air supply hose 4 through the quick-connect coupling 3, then remove the breather valve on the top of tank 22 and seal it with a plug, then open the valves on the detection pipe 2, the air supply pipe 5 and the pressurization pipe 12, start the air compressor 13 to inject air into tank 22 and pressurize it, observe the pressure through pressure gauge 1, gradually increase the pressure until the test pressure is reached, then close the valve on the detection pipe 2, then close the air compressor 13, close the valves on the air supply pipe 5 and the pressurization pipe 12, and then maintain the pressure for a period of time. During the pressure maintenance, check the device with soap solution or a gas leak scanner. If there is no air leakage, no abnormal noise, no visible deformation and the pressure on pressure gauge 1 remains unchanged during the pressure maintenance, it is considered qualified.

[0019] Furthermore, the breather valve can be tested for quality at the same time. The disassembled breather valve is fixed to the connecting flange on the corresponding mounting pipe 10 with bolts. When testing for leakage in tank 22, the valve on the connecting pipe 8 is opened at the same time. As the pressure increases, the pressure gauge 27 is observed. When the pressure is near the set point, the breather valve will open, indicating that it is a qualified product. If the pressure exceeds the set point and it does not open, it is considered a damaged product. After the breather valve opens, the valve on the connecting pipe 8 is closed. When the pressure reaches the set point and it does not open, the valve on the connecting pipe 8 is also closed. The pressure is then increased to the test pressure to perform the above test on tank 22.

[0020] In Example 2, based on Example 1, a placement box 21 for placing the detection pipe 2 is fixed to the top of the housing 14. A sponge layer 20 is provided on the inner wall of the placement box 21. Both the bottom of the placement box 21 and the top of the housing 14 are provided with clearance openings 19 for the pressure gauge 1 to extend into. When the detection pipe 2 is placed, the pressure gauge 1 extends downwards into the clearance opening 19, and then the entire detection pipe 2 is placed inside the placement box 21.

[0021] A support plate 15 is fixed to the outer wall of the housing 14. A locking tube 16 is fixed to the top of the support plate 15, which is locked in conjunction with the quick-connect fitting 3 on the gas hose 4. The lower end of the locking tube 16 is closed. After the test is completed, the gas hose 4 is bent downwards, and then the quick-connect fitting 3 on the gas hose 4 is fixed to the locking tube 16 for fixation.

[0022] Above the locking tube 16 are a semi-circular clamping ring 18 and a support ring 17 that mate with the outer wall of the gas delivery hose 4. A support arm plate is fixed to the outer side of the support ring 17 and is fixed to the outer wall of the housing 14. Connecting flanges are fixed to the outer ends of the clamping ring 18 and the support ring 17, and connecting bolts are provided at the connecting flanges. After the quick-connector 3 on the gas delivery hose 4 is fixed to the locking tube 16, the gas delivery hose 4 is placed against the support ring 17, and then the clamping ring 18 is used to press down the gas delivery hose 4, and the connecting flanges are fixed with bolts.

[0023] Rubber anti-slip layers are fixed on the inner walls of both the clamping ring 18 and the support ring 17.

[0024] Multiple connecting sleeves 11, which are threadedly connected to the mounting tube 10, are fixed to the top of the housing 14. The multiple connecting sleeves 11 are arranged in the front-back direction. A push handle is fixed to the top of the housing 14 on the right side of the connecting sleeve 11. When the mounting tube 10 is not in use, the mounting tube 10 is screwed onto the connecting sleeve 11.

[0025] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A rapid leak detection device for pressure vessels, comprising a detection pipe (2) connected to the unloading pipe (23) port of a tank (22), a pressure gauge (1) provided on the detection pipe (2), a gas delivery hose (4) connected to the detection pipe (2), and a gas guide pipe (5) fixed to the other end of the gas delivery hose (4), characterized in that: The other end of the air duct (5) is fixedly connected to a high-pressure air tank (6). The high-pressure air tank (6) is fixed with a box (14). The bottom of the box (14) is fixed with a mobile frame. An air compressor (13) is fixed inside the box (14). The air outlet of the air compressor (13) is connected to the high-pressure air tank (6) through a pressurizing pipe (12). The high-pressure air tank (6) is connected to a connecting pipe (8). The other end of the connecting pipe (8) is fixed with a threaded sleeve (9). The threaded sleeve (9) is threadedly connected to multiple installation pipes (10). The other end of each installation pipe (10) is fixed with a connecting flange of different outer diameters. Valves are provided on the detection pipe (2), air duct (5), connecting pipe (8) and pressurizing pipe (12). Pressure gauge 2 (7) is provided on the high-pressure air tank (6). Quick-connect couplings (3) are provided at the connection end of the air delivery hose (4) and the detection pipe (2) and the connection end of the detection pipe (2) and the unloading pipe (23).

2. The pressure vessel rapid leak detection device according to claim 1, characterized in that: The top of the box (14) is fixed with a placement box (21) for placing the detection pipe (2). The inner wall of the placement box (21) is provided with a sponge layer (20). The bottom of the placement box (21) and the top of the box (14) are provided with clearance opening slots (19) for the pressure gauge (1) to extend into.

3. The pressure vessel rapid leak detection device according to claim 1, characterized in that: A support plate (15) is fixed on the outer side wall of the box (14). A locking tube (16) is fixed on the top of the support plate (15) and locks in conjunction with the quick-connect fitting (3) on the gas hose (4). The lower end of the locking tube (16) is closed.

4. The rapid leak detection device for pressure vessels according to claim 3, characterized in that: Above the locking tube (16) are a semi-circular clamping ring (18) and a support ring (17) that mate with the outer wall of the gas delivery hose (4). A support arm plate is fixed to the outside of the support ring (17), and the support arm plate is fixed to the outer wall of the box (14). Connecting flanges are fixed to the outer sides of both ends of the clamping ring (18) and the support ring (17), and connecting bolts are provided at the connecting flanges.

5. The rapid leak detection device for pressure vessels according to claim 4, characterized in that: Rubber anti-slip layers are fixed on the inner walls of both the clamping ring (18) and the support ring (17).

6. The pressure vessel rapid leak detection device according to claim 1, characterized in that: The top of the housing (14) is fixed with multiple connecting sleeves (11) that are threaded to the mounting pipe (10). The multiple connecting sleeves (11) are arranged in the front-back direction. A pusher is fixed on the top of the housing (14) on the right side of the connecting sleeves (11).

Images