A device for detecting the tightness of a gas pipeline

Abstract

The utility model discloses a kind of gas pipeline leakproofness detection devices, comprising: the detection water tank that inside is filled with fresh water;Storage board, storage board is placed in the side of the detection water tank, the top of the storage board is provided with the gap of inclined structure, the side of the detection water tank is lifted and is provided with pusher frame, the beneficial effects of the utility model are: when pressure reaches preset value, stop inflation, ensure the accuracy and stability of inflation pressure, provide reliable condition for leakproofness detection;After inflation is completed, lifting frame moves downward under the action of cylinder two, so that pipeline is completely sunk in the fresh water of detection water tank;By observing whether bubble emerges on water surface, pipeline is judged to be air leak position intuitively;And, pressure sensor continuously detects internal pressure variation of pipeline, when pressure changes, further confirms air leak, and according to bubble position, the specific position of air leak can be accurately distinguished, and detection result is accurate and reliable.

Description

Technical Field

[0001] This utility model relates to the field of pipeline sealing test technology, specifically a gas pipeline sealing test device. Background Technology

[0002] In the production and quality inspection of gas pipelines, sealing testing is a crucial step. As a vital carrier for flammable and explosive gases, the sealing performance of gas pipelines directly affects the safety and stability of gas transmission. If a pipeline has sealing defects, such as cracks or pinholes, the risk of gas leakage increases significantly. This not only leads to energy waste but can also cause serious safety accidents such as fires and explosions, posing a significant threat to the surrounding environment and the lives and property of people. Currently, in the pipeline sealing testing process, traditional methods for loading and unloading pipelines mostly rely on manual handling or robotic arms. Manual operation is labor-intensive, and robotic arms require a large area and are prone to collisions and damage to the pipelines during handling, affecting pipeline quality. While some automated loading and unloading devices exist, most have limited functions and cannot seamlessly integrate with the sealing testing process, resulting in an inefficient testing flow and reduced overall testing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a gas pipeline sealing test device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a gas pipeline sealing performance testing device, comprising:

[0005] The testing tank is filled with clean water.

[0006] A storage plate is placed on one side of the testing water tank. The top of the storage plate has an inclined notch. A pusher is raised and lowered on one side of the testing water tank to push the pipe at the end of the notch into the testing water tank while restricting the rolling of adjacent pipes.

[0007] The lifting frame is positioned inside the testing water tank. The top two ends of the lifting frame are equipped with sealing plugs with air inlets for sealing and pressurizing multiple pipes.

[0008] The clamping part is located on the top of the lifting frame. The clamping part includes multiple sets of clamping plates for clamping and positioning the pipe. One side of the clamping plate is provided with a slanted hook plate for switching the position of the pipe and a discharge slanted plate for unloading.

[0009] Preferably, a guide ramp is fixed to the end of the detection water tank for guiding the pipe into the clamping plate near the storage plate. A support frame is fixed to one side of the detection water tank, and a cylinder is fixedly connected to the middle of the support frame. A lifting plate is fixedly connected to the output end of the cylinder, and a pusher frame is fixedly connected to both ends of the top of the lifting plate.

[0010] Preferably, a guide plate with a guide pipe fixed to one side of the detection water tank and placed on top of the storage plate is provided.

[0011] Preferably, support plates are fixedly connected to both ends of the top of the detection water tank, and a second cylinder is fixedly connected to the top of the support plate. The output end of the second cylinder is fixedly connected to the lifting frame, and a limit rod that is slidably connected to the lifting frame is fixedly connected to the bottom of the support plate.

[0012] Preferably, both ends of the top of the lifting frame are fixedly connected to a fixing plate, and a cylinder three is fixedly connected to one side of each fixing plate. The output end of the cylinder three is fixedly connected to a sealing plug, and a pressure sensor is fixedly connected to one side of the sealing plug.

[0013] Preferably, the lifting frame has multiple fixed plates fixedly connected at equal intervals in the middle, and two sliding plates with clamping plates fixedly connected to the top of the fixed plates are slidably connected. The two sliding plates are symmetrically arranged about the middle of the fixed plates, and the top of the fixed plates is fixedly connected to cylinders four that drive the two sliding plates to slide respectively.

[0014] Preferably, cylinders five and six are fixedly connected to the bottom of the fixing plate, the output end of cylinder five is fixedly connected to the inclined hook plate, and the output end of cylinder six is ​​fixedly connected to the unloading inclined plate.

[0015] Compared with existing technologies, the advantages of this utility model are as follows: Through the coordinated operation of the pusher frame, inclined hook plate, guide inclined plate, unloading inclined plate, and various cylinders, automatic feeding, positioning, clamping, and unloading of pipelines are achieved; manual handling and placement of pipelines are eliminated, greatly reducing manual operation steps, lowering labor intensity, and improving detection efficiency. Sealing plugs with inflation holes are installed on both sides of the top of the lifting frame. Pressure sensors monitor the internal pressure of the pipeline in real time, stopping inflation when the pressure reaches a preset value, ensuring the accuracy and stability of the inflation pressure and providing reliable conditions for sealing detection. After inflation, the lifting frame moves downward under the action of cylinder two, causing the pipeline to completely submerge in the clean water of the detection tank. By observing whether bubbles emerge from the water surface, the location of the leak can be intuitively determined. Furthermore, the pressure sensor continuously monitors changes in the internal pressure of the pipeline; when the pressure decreases, the leak is further confirmed. Simultaneously, the specific location of the leak can be accurately identified based on the position of the bubbles, resulting in accurate and reliable detection results. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the storage plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of cylinder one of this utility model;

[0019] Figure 4 This is a schematic diagram of the sealing plug of this utility model;

[0020] Figure 5 This is a schematic diagram of the inclined hook plate and the feeding inclined plate of this utility model in operation.

[0021] In the diagram: 1. Detection water tank; 2. Guide plate; 3. Storage plate; 4. Guide ramp; 5. Support frame; 6. Cylinder 1; 7. Lifting plate; 8. Pusher frame; 9. Lifting frame; 10. Limiting rod; 11. Support plate; 12. Cylinder 2; 13. Cylinder 3; 14. Sealing plug; 15. Pressure sensor; 16. Fixing plate; 17. Clamping plate; 18. Cylinder 4; 19. Cylinder 5; 20. Inclined hook plate; 21. Discharge ramp; 22. Cylinder 6. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , 2 As shown in Figures 3, 4, and 5, this utility model provides a technical solution: a gas pipeline sealing test device, comprising: a test water tank 1 filled with clean water, a drain pipe installed on the side of the test water tank 1; a storage plate 3 fixed to one side of the test water tank 1, the top of the storage plate 3 having an inclined notch, a pusher 8 being lifted and lowered on one side of the test water tank 1, the top of the pusher 8 having an inclined structure, used to push the pipe at the end of the notch into the test water tank 1 while restricting the rolling of adjacent pipes; a lifting frame 9 slidingly installed inside the test water tank 1, the top two sides of the lifting frame 9 having sealing plugs 14 with air inlets, one end of the sealing plug 14 having an air inlet connected to the workshop gas source through an air duct. The sealing plug 14 at one end is connected to a solenoid valve for venting, sealing and pressurizing the pipeline; the clamping part is located on the top of the lifting frame 9, and the clamping part includes multiple clamping plates 17 for clamping and positioning the pipeline. One side of the clamping plate 17 is provided with a slanted hook plate 20 for switching the position of the pipeline and a discharge slant plate 21 for discharging material.

[0024] It should be noted that this embodiment is equipped with a PLC controller and an operation panel. Under the action of the conveying equipment, the pipes are orderly stacked on the top of the storage plate 3 along its inclined surface. When testing is required, the inclined surface of the pusher 8 rises, lifting the foremost pipe. Guided by the inclined surface at the top of the pusher 8, the pipe rolls into the testing tank 1. One end of the pusher 8 blocks the second pipe, preventing it from entering the testing tank 1. During the rising of the pusher 8, the inclined hook plate 20 rises, causing the pipe to bounce off the lower part of the inclined hook plate 20 and roll into the clamping plate 17 opposite to the end of the storage plate 3. When the inclined hook plate 20 returns to its original position, the pipe enters the corresponding clamping plate 17. The pusher 8 returns to its original position, causing the pipe to roll back onto the top of the storage plate 3. 8 rises again, guided by the guide plate 4, and enters the clamping plate 17 near the end of the guide plate 4. The clamping plate 17 moves towards the pipe to clamp the pipe. At this time, the center of the pipe corresponds to the sealing plug 14. The sealing plug 14 moves towards the end of the pipe to seal the pipe. The pipe is inflated by a high-pressure air source. After inflation, the lifting frame 9 moves downward so that the pipe is completely submerged in the water. Observe whether there are bubbles on the water surface. Under the action of the timer, the controller controls the lifting frame 9 to rise. When there is a pipe leak, the controller controls the corresponding sound and light alarm to sound. After manual marking, the sealing plug 14 and the clamping plate 17 are reset, and the unloading plate 21 rises, so that the two pipes roll to one side to the receiving position at the same time.

[0025] In one embodiment, a guide ramp 4 is fixedly connected to the end of the detection water tank 1 for introducing the pipe into the clamping plate 17 near the storage plate 3. A support frame 5 is fixedly connected to one side of the detection water tank 1. A cylinder 6 is fixedly connected to the middle of the support frame 5. A lifting plate 7 is fixedly connected to the output end of the cylinder 6. Pusher frames 8 are fixedly connected to both ends of the top of the lifting plate 7. A guide plate 2 is fixedly connected to one side of the detection water tank 1 to guide the pipe to the top of the storage plate 3.

[0026] It should be noted that, in this embodiment, when the conveying device transports the pipe to the top of the storage plate 3, the inclined surface of the guide plate 2 guides and constrains the pipe, allowing it to align with the detection water tank 1. When the pipe at the top of the storage plate 3 is pushed into the detection water tank 1, the storage plate 3 causes the lifting plate 7 to rise, which in turn causes the pusher frame 8 to rise. The pusher frame 8 then lifts the pipe from the top of the storage plate 3. When the pipe separates from the top of the guide plate 2, the pipe rolls forward along the inclined guide plate 4 under the inclined surface of the pusher frame 8, thereby placing the pipe inside the detection water tank 1.

[0027] In one embodiment, support plates 11 are fixedly connected to both ends of the top of the detection tank 1. A second cylinder 12 is fixedly connected to the top of the support plate 11. The output end of the second cylinder 12 is fixedly connected to the lifting frame 9. A limiting rod 10 that is slidably connected to the lifting frame 9 is fixedly connected to the bottom of the support plate 11.

[0028] It should be noted that, in this embodiment, when the lifting frame 9 is raised or lowered, the cylinder 2 12 drives the lifting frame 9 to rise or fall along the limit rod 10 inside the detection water tank 1. In this way, the lifting frame 9 drives the pipe to enter the water surface, so as to facilitate observation of whether there is any air leakage and the location of air bubbles.

[0029] In one embodiment, fixed plates are fixed to both ends of the top of the lifting frame 9, and cylinders 13 are fixed to one side of each fixed plate. The output end of cylinder 13 is fixedly connected to a sealing plug 14, and a pressure sensor 15 is fixedly connected to one side of the sealing plug 14. Multiple fixed plates 16 are fixedly fixed at equal intervals in the middle of the lifting frame 9. Two sliding plates with clamping plates 17 are slidably connected to the top of the fixed plates 16. The two sliding plates are symmetrically arranged about the middle of the fixed plates 16, and cylinders 18 that drive the two sliding plates to slide are fixedly connected to the top of the fixed plates 16 respectively.

[0030] It should be noted that in this embodiment, when the pipe is guided by the inclined hook plate 20 and the guide inclined plate 4, the pipe enters the corresponding clamping plate 17. At this time, the corresponding cylinder 18 pulls the two sliding plates to move towards the center of the pipe, so that the sliding plates drive the clamping plate 17 to move towards the middle of the pipe, thereby clamping the sliding plates at the top, so that its center corresponds to the center of the sealing plug 14. At this time, the cylinder 13 drives the sealing plug 14 to move laterally, so that its end fits against the end of the pipe. The internal air of the pipe is then circulated through the workshop air station and the air inlet. During inflation and pressurization, when the pressure sensor 15 detects the pressure, inflation stops when the pressure reaches the preset value. Cylinder 2 12 drives the lifting frame 9 to move downward to observe whether any bubbles emerge. The pressure sensor 15 detects changes in internal pressure. When the pressure decreases, it indicates a leak. The location of the leak is determined by observing the bubbles. After detection, the lifting frame 9 resets and the pipe is discharged. The sealing plug 14 at one end is vented through the solenoid valve. After depressurization, the sealing plug 14 separates from the pipe, and the clamping plate 17 resets to both sides and separates from the pipe.

[0031] In one embodiment, cylinder 5 19 and cylinder 6 22 are fixedly connected to the bottom of the fixed plate 16. The output end of cylinder 5 19 is fixedly connected to the inclined hook plate 20, and the output end of cylinder 6 22 is fixedly connected to the unloading inclined plate 21.

[0032] It should be noted that in this embodiment, multiple metal rods are fixedly connected to the bottom of the inclined hook plate 20 and the unloading inclined plate 21. The metal rods are slidably connected to the fixed plate 16. The cylinder 5 19 drives the inclined hook plate 20 to rise. The inclined hook plate 20 cooperates with the guide inclined plate 4, and the inclined surface of the inclined hook plate 20 is higher than the top of the clamping plate 17, so that the pipe rolls down to the end of the inclined hook plate 20. At this time, the pipe is located in the middle of the lower clamping plate 17. When the inclined hook plate 20 is reset, under the guidance of the guide inclined plate 4, the pipe directly enters the adjacent clamping plate 17. After the test is completed, the unloading inclined plate 21 rises, and its inclined surface is higher than the height of the two clamping plates 17, so that the pipe rolls down along its inclined surface to the outside of the test water tank 1.

[0033] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas pipeline sealing performance testing device, characterized in that: include: The test water tank (1) is filled with clean water; Storage plate (3), the storage plate (3) is placed on one side of the detection water tank (1), the top of the storage plate (3) is provided with an inclined structure notch, and a pusher (8) is provided on one side of the detection water tank (1) to push the pipe at the end of the notch into the detection water tank (1) while restricting the rolling of adjacent pipes; The lifting frame (9) is raised and placed inside the detection water tank (1). The top two ends of the lifting frame (9) are provided with sealing plugs (14) with air holes for sealing and pressurizing multiple pipes. The clamping part is located on the top of the lifting frame (9). The clamping part includes multiple sets of clamping plates (17) for clamping and positioning the pipe. One side of the clamping plate (17) is provided with a slanted hook plate (20) for switching the position of the pipe and a discharge slanted plate (21) for discharging material.

2. The gas pipeline sealing test device according to claim 1, characterized in that: The end of the detection water tank (1) is fixedly connected to a guide inclined plate (4) for introducing the pipe into the clamping plate (17) near the storage plate (3). A support frame (5) is fixedly connected to one side of the detection water tank (1). A cylinder (6) is fixedly connected to the middle of the support frame (5). A lifting plate (7) is fixedly connected to the output end of the cylinder (6). A pusher frame (8) is fixedly connected to both ends of the top of the lifting plate (7).

3. The gas pipeline sealing test device according to claim 1, characterized in that: The detection tank (1) is fixed to one side with a guide plate (2) that guides the pipes and is placed on top of the storage plate (3).

4. The gas pipeline sealing test device according to claim 1, characterized in that: Both ends of the top of the detection water tank (1) are fixedly connected to support plates (11). The top of the support plate (11) is fixedly connected to cylinder two (12). The output end of cylinder two (12) is fixedly connected to the lifting frame (9). The bottom of the support plate (11) is fixedly connected to a limiting rod (10) that is slidably connected to the lifting frame (9).

5. A gas pipeline sealing test device according to claim 1, characterized in that: The top of the lifting frame (9) is fixed with a fixing plate at both ends, and a cylinder three (13) is fixed with one side of the fixing plate. The output end of the cylinder three (13) is fixedly connected to the sealing plug (14), and a pressure sensor (15) is fixed with one side of the sealing plug (14).

6. The gas pipeline sealing test device according to claim 1, characterized in that: The lifting frame (9) has multiple fixed plates (16) fixed at equal intervals in the middle. The top of the fixed plate (16) is slidably connected to two slide plates with clamping plates (17) fixed to them. The two slide plates are symmetrically arranged about the middle of the fixed plate (16). The top of the fixed plate (16) is fixedly connected to cylinders (18) that drive the two slide plates to slide respectively.

7. A gas pipeline sealing test device according to claim 6, characterized in that: The bottom of the fixed plate (16) is fixedly connected to cylinder five (19) and cylinder six (22). The output end of cylinder five (19) is fixedly connected to the inclined hook plate (20), and the output end of cylinder six (22) is fixedly connected to the unloading inclined plate (21).

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