Stress-strain real-time monitoring clamp for rapid emergency repair of hydrogen pipeline

Abstract

The invention relates to the technical field of rapid repair of pipelines, and discloses a stress-strain real-time monitoring clamp for rapid repair of hydrogen pipelines. Comprising a sealing sleeve shaft and a stabilizing sleeve shaft, the sealing sleeve shaft and the stabilizing sleeve shaft are fixedly connected through a fixing assembly, the stress-strain sensing assembly is arranged on the outer side face of the sealing sleeve shaft, and the sealing cushion block is arranged on the inner side face of the sealing sleeve shaft. Through the arrangement of the stress-strain sensing assembly, the stress-strain in the rapid repair process of the pipeline can be monitored in real time and accurately, a scientific data basis is provided for repair operation, the repair quality is ensured, meanwhile, through analysis and storage of monitored data, powerful support is provided for long-term maintenance and safety assessment of the pipeline, the operation risk of the pipeline is reduced, and the safety of the pipeline is improved. And potential safety risks can be warned in advance, so that the safety of operators is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline rapid repair, in particular to a hydrogen pipeline rapid repair stress and strain real-time monitoring clamp. BACKGROUND

[0002] The hydrogen pipeline is usually under high pressure, and once a leakage occurs, it may cause a serious safety accident. Common defect repair techniques include welding, clamps, and carbon nanometer polymer material bonding.

[0003] During the operation of the pipeline, stress may be generated due to internal pressure, external load, temperature change, vibration, and other factors. Excessive stress may cause safety hazards, especially in the damaged repair area, which is prone to stress concentration and may cause serious economic losses.

[0004] The repair of the hydrogen pipeline needs to meet the requirements of low operation risk, permanent repair, convenience and efficiency, and real-time monitoring of stress and strain. The commonly used hydrogen pipeline repair clamp currently adopts epoxy resin filling to achieve reinforcement, but it has the problems of insufficient sealing performance and easy hydrogen leakage, and cannot realize real-time monitoring of the stress and strain of the repaired area, making it difficult to realize early warning of potential risks. SUMMARY

[0005] The purpose of the present application is to solve the problems raised in the background art, and a hydrogen pipeline rapid repair stress and strain real-time monitoring clamp is proposed. The present application realizes instant and accurate monitoring of stress and strain during the rapid repair of the pipeline by setting a stress and strain sensing component, provides scientific data basis for the repair operation, ensures the repair quality, and provides strong support for the long-term maintenance and safety evaluation of the pipeline through analysis and preservation of the monitoring data, reduces the risk of pipeline operation, and can also early warn potential safety risks to protect the safety of the operators.

[0006] The technical solution adopted by the present application to solve the technical problems is: A hydrogen pipeline rapid repair stress and strain real-time monitoring clamp, comprising a sealing sleeve shaft and a stable sleeve shaft, the sealing sleeve shaft and the stable sleeve shaft are fixedly connected through a fixing component, further comprising a stress and strain sensing component and a sealing pad, the stress and strain sensing component is arranged on the outer side of the sealing sleeve shaft, the sealing pad is arranged on the inner side of the sealing sleeve shaft, and the stress and strain sensing component is electrically connected with a data processing terminal.

[0007] Further description of the above technical solution: The sealing sleeve shaft comprises an arc plate and a wing plate, the arc plate is a semicircular arc plate, the wing plate is fixedly arranged on both sides of the arc plate, and the wing plate is arranged vertically to the end face of the arc plate; the stable sleeve shaft has the same shape structure as the sealing sleeve shaft, and the stable sleeve shaft and the sealing sleeve shaft can be spliced into a complete cylindrical structure.

[0008] As a further description of the above technical solution: The wing plate is provided with a fixing hole, the stabilizing sleeve shaft is provided with a mounting hole corresponding to the fixing hole, a fixing component is penetrated in the fixing hole and the mounting hole, and the fixing of the stabilizing sleeve shaft and the sealing sleeve shaft is realized through the fixing component.

[0009] As a further description of the above technical solution: The stress-strain sensing component comprises mounting blocks and a stress-strain monitor, the two mounting blocks are fixedly arranged on the outer side of the sealing sleeve shaft, the stress-strain monitor is respectively inserted into the inner sides of the two mounting blocks, and is fixed through mounting bolts.

[0010] As a further description of the above technical solution: The inner top end of the arc plate is provided with a mounting groove, and the sealing pad block is arranged in the inner side of the mounting groove.

[0011] As a further description of the above technical solution: The position of the sealing sleeve shaft provided with the mounting groove is penetrated by a pressurizing threaded hole, the pressurizing threaded hole is located on the top surface of the sealing pad block, and a pressurizing bolt is arranged on the pressurizing threaded hole.

[0012] As a further description of the above technical solution: The inner side of the sealing pad block is provided with a glue filling channel, the glue filling channel is spirally arranged, and a nitrile rubber sealing pad is arranged in the glue filling channel.

[0013] The present application has the following beneficial effects: 1. The stress-strain sensing component is arranged, the stress-strain in the process of rapid repair of the pipeline is monitored in real time and accurately, scientific data basis is provided for the repair operation, the repair quality is ensured, the analysis and preservation of the monitoring data provide strong support for the long-term maintenance and safety evaluation of the pipeline, the operation risk of the pipeline is reduced, potential safety risks can be warned in advance, and the safety of the operating personnel is ensured.

[0014] 2. The sealing pad block is arranged, the inner side of the sealing pad block is provided with a glue filling channel, the glue filling channel is spirally arranged, a nitrile rubber sealing pad is arranged in the glue filling channel, multi-layer sealing and plugging of the leakage are realized, and the plugging effect is better than that of general annular glue sealing.

[0015] 3. The clamp has simple structure, convenient installation and strong adaptability, can be quickly applied to the repair and plugging site of the hydrogen pipeline, improves the work efficiency, and reduces the safety risk.

[0016] 4. The application sets sealing pad block, the length of clamp is determined by sealing pad block, the length range is 400-2000mm, and the application is suitable for small and medium-sized damage repair in hydrogen pipeline.

[0017] 5. The application sets pressurized threaded hole, and the torque is converted into pressure by rotating bolt, the pressure between sealing pad block and pipeline is increased, and the sealing effect of repair is improved.

[0018] 6. In the application, glue filling channel is arranged in the inner side of sealing pad block, the glue filling channel is spirally arranged, nitrile rubber sealing pad is arranged in the inner side of glue filling channel, a circle of nitrile rubber sealing pad and a circle of circulating sealing structure of inner wall of sealing pad block 5 are formed around the damaged part of pipeline, and the sealing and plugging effect is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 for the overall structure of the application Figure 1 ; Figure 2 for the overall structure of the application Figure 2 ; Figure 3 for the overall structure of the application Figure 4 for the overall structure of the application Figure 5 for the overall structure of the application

[0020] Among them: Among them: 1, sealing sleeve shaft; 11, pressurized threaded hole; 12, mounting groove; 13, wing plate; 14, fixing hole; 15, arc plate 2, stable sleeve shaft; 3, stress and strain sensing assembly; 31, mounting block; 32, mounting bolt; 33, stress and strain monitor; 4, fixing assembly; 5, sealing pad block; 51, glue filling channel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0022] Embodiment: as Figures 1-5As shown, a kind of hydrogen pipeline quick repair stress strain real-time monitoring clamp, including sealing sleeve shaft 1 and stable sleeve shaft 2, the sealing sleeve shaft 1 and stable sleeve shaft 2 are fixedly connected by fixed assembly 4, still include stress strain sensing component 3 and sealing pad 5, the stress strain sensing component 3 is set on the outer side of sealing sleeve shaft 1, the sealing pad 5 is set on the inner side of sealing sleeve shaft 1, the stress strain sensing component 3 is electrically connected with data processing terminal.

[0023] Wherein, the stress strain sensing component 3 is by the stress sensing sheet of high sensitivity elastic material, stress strain monitor 33 is installed on sealing sleeve shaft 1 by mounting block 31, when the clamp is slightly deformed due to the gas pressure inside pipe, stress strain monitor 33 can produce deformation synchronously, with the form of electric signal, stress strain information is transmitted to data processing terminal, data processing terminal uses prior art, has the functions of data receiving, processing, display and storage information, its display screen uses high-resolution, strong light visible screen, and it is convenient for repair personnel to also clearly read data in outdoor strong light environment.

[0024] As Figures 1-3 Shown, the sealing sleeve shaft 1 includes arc plate 15 and wing plate 13, the arc plate 15 is semicircular arc plate, the wing plate 13 is fixedly arranged on the both sides of arc plate 15, and the wing plate 13 is vertically arranged with the end face of arc plate 15;The stable sleeve shaft 2 and sealing sleeve shaft 1 are same in shape structure, the stable sleeve shaft 2 and sealing sleeve shaft 1 can be spliced into a complete cylindrical structure, and the stable sleeve shaft 2 and sealing sleeve shaft 1 can be closely attached to the outer wall of pipe after butt joint installation.

[0025] As Figure 3 Shown, the wing plate 13 is provided with fixed hole 14, the stable sleeve shaft 2 is provided with corresponding mounting hole, the fixed hole 14 and mounting hole are passed through fixed assembly 4, and the fixation of stable sleeve shaft 2 and sealing sleeve shaft 1 is realized by fixed assembly 4.

[0026] As Figure 1 , Figure 2 And Figure 4 Shown, the stress strain sensing component 3 includes mounting block 31 and stress strain monitor 33, two the mounting block 31 is fixedly arranged on the outer side of sealing sleeve shaft 1, and the stress strain monitor 33 is respectively inserted into the inner side of two mounting block 31, and is fixed by mounting bolt 32.

[0027] Under the influence of external force, the pipeline will be deformed, and the stable sleeve shaft 2 and the sealing sleeve shaft 1 are driven to be deformed at the same time. The stress and strain monitor 33 can monitor the change at any time and send the monitored data to the data processing terminal. Thus, the stress and strain of the pipeline during the rapid repair process can be monitored in real time and accurately, scientific data basis is provided for the repair operation, the repair quality is ensured, and through the analysis and preservation of the monitoring data, strong support is provided for the long-term maintenance and safety evaluation of the pipeline, the operation risk of the pipeline is reduced, potential safety risks can be warned in advance, and the safety of the operating personnel is ensured.

[0028] As shown in Figure 3 , the inner top end of the arc plate 15 is provided with a mounting groove 12, and the sealing pad block 5 is arranged in the inner side of the mounting groove 12. The sealing pad block 5 is tightly matched with the mounting groove 12, and the inner circle arc surface of the sealing pad block 5 is completely overlapped with the inner circle arc surface of the sealing sleeve shaft 1.

[0029] As shown in Figures 1-3 , the sealing sleeve shaft 1 is provided with a pressurizing threaded hole 11 which penetrates the position of the mounting groove 12. The pressurizing threaded hole 11 is located on the top surface of the sealing pad block 5, and a pressurizing bolt is arranged on the pressurizing threaded hole 11. By rotating the pressurizing bolt, the bottom surface of the pressurizing bolt contacts the top surface of the sealing pad block 5 first, and then the pressure is continuously applied.

[0030] As shown in Figure 1 , Figure 2 , and Figure 5 , the inner side of the sealing pad block 5 is provided with a glue filling channel 51, and the glue filling channel 51 is spirally arranged. Nitrile rubber sealing pads are arranged in the glue filling channel 51.

[0031] In the pressurizing threaded hole 11 on the sealing sleeve shaft 1, a flat-end fixing screw is tightened, which applies a pressure on the sealing pad block 5, so that the sealing pad block 5 is tightly attached to the pipe wall. The nitrile rubber sealing ring in the sealing pad block 5 is also extruded between the sealing pad block 5 and the pipeline, forming a contact pressure, so that the extrusion deformation occurs on the outer surface of the pipeline, and the pipeline is in contact with the rough outer surface of the pipeline, filling the micro-concave body on the mechanical processing surface of the pipeline. It is ensured that the contact pressure between the rubber sealing ring and the pipe wall is greater than the medium pressure, so that the rubber sealing ring forms a circumferential sealing of the pipeline leakage. At this time, the leakage of the pipeline is blocked by the sealing surface of the clamp and the rubber sealing ring, and the leakage gas is isolated from the outside, and cannot leak out of the clamp, thereby realizing the sealing and plugging effect of the clamp. The inner side of the sealing pad block 5 is provided with a glue filling channel 51, and the glue filling channel 51 is spirally arranged. Nitrile rubber sealing pads are arranged in the glue filling channel 51, so that a circle of nitrile rubber sealing pads and a circle of inner wall of the sealing pad block 5 are formed around the damaged part of the pipeline, forming a circulating sealing structure, which greatly improves the sealing and plugging effect.

[0032] The use method of the clamp is disclosed: S1. Clamps are installed, nitrile rubber sealing pads are installed in the glue channel 51, and lubricating grease is evenly applied around the sealing pad block 5, which is attached to the pipe section defect, ensuring that the leakage hole is in the center position of the sealing ring, and then the sealing sleeve shaft 1 and the stable sleeve shaft 2 are installed, and the fixing assembly 4 is tightened. The sealing sleeve shaft 1 and the stable sleeve shaft 2 are tightly pressed on the pipe section to achieve the sealing and plugging effect of the clamp; S2. The stress and strain monitor 33 is installed between the two mounting blocks 31 and fixed by the mounting bolts 32, and then electrically connected with the data processing terminal; S3. Install the pressure bolt on the pressure threaded hole 11, the bottom surface of the pressure bolt is in contact with the top surface of the sealing pad block 5, and the extrusion effect of the multiple pressure bolts further increases the sealing effect between the sealing pad block 5 (nitrile rubber sealing pad) and the pipe wall, realizing double sealing effect.

[0033] In the description of the present application, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the present application and not required to be constructed or operated in a particular orientation. Therefore, it cannot be understood as a limitation on the present application. In the present application, "connected" and "connected" should be understood broadly, for example, it can be connected, or it can be detachable connection; it can be direct connection, or indirect connection through intermediate components. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] The above is the preferred operation mode of the present application, and the description of the specific operation mode is only for better understanding the idea of the present application. For ordinary skilled in the art, according to the principle of the present application, several improvements or equivalent replacements can also be made, which are also considered to fall within the protection scope of the present application.

Claims

1. A real-time stress and strain monitoring fixture for rapid emergency repair of hydrogen pipelines, comprising a sealing sleeve shaft (1) and a stabilizing sleeve shaft (2), wherein the sealing sleeve shaft (1) and the stabilizing sleeve shaft (2) are fixedly connected by a fixing component (4), characterized in that: It also includes a stress-strain sensing component (3) and a sealing gasket (5). The stress-strain sensing component (3) is disposed on the outer side of the sealing sleeve shaft (1), and the sealing gasket (5) is disposed on the inner side of the sealing sleeve shaft (1). The stress-strain sensing component (3) is electrically connected to the data processing terminal.

2. The real-time stress and strain monitoring fixture for rapid repair of hydrogen pipelines according to claim 1, characterized in that: The sealing sleeve shaft (1) includes an arc plate (15) and a wing plate (13). The arc plate (15) is a semi-circular arc plate. The wing plate (13) is fixedly arranged on both sides of the arc plate (15). The wing plate (13) is perpendicular to the end face of the arc plate (15). The stabilizing sleeve shaft (2) has the same shape and structure as the sealing sleeve shaft (1). The stabilizing sleeve shaft (2) and the sealing sleeve shaft (1) can be spliced ​​into a complete cylindrical structure.

3. A real-time stress and strain monitoring fixture for rapid repair of hydrogen pipelines according to claim 2, characterized in that: The wing plate (13) is provided with a fixing hole (14), and the stabilizing sleeve shaft (2) is provided with a corresponding mounting hole. The fixing component (4) passes through the fixing hole (14) and the mounting hole, and the stabilizing sleeve shaft (2) and the sealing sleeve shaft (1) are fixed through the fixing component (4).

4. A real-time stress and strain monitoring fixture for rapid repair of hydrogen pipelines according to claim 1, characterized in that: The stress-strain sensing component (3) includes a mounting block (31) and a stress-strain monitor (33). The two mounting blocks (31) are fixedly mounted on the outer side of the sealing sleeve shaft (1). The two ends of the stress-strain monitor (33) are respectively inserted into the inner side of the two mounting blocks (31) and fixed by mounting bolts (32).

5. A real-time stress and strain monitoring fixture for rapid repair of hydrogen pipelines according to claim 2, characterized in that: The inner top of the arc plate (15) is provided with an installation groove (12), and the sealing gasket (5) is provided inside the installation groove (12).

6. A real-time stress and strain monitoring fixture for rapid repair of hydrogen pipelines according to claim 5, characterized in that: The sealing sleeve shaft (1) has a pressure threaded hole (11) through the mounting groove (12). The pressure threaded hole (11) is located on the top surface of the sealing gasket (5), and a pressure bolt is provided on the pressure threaded hole (11).

7. A real-time stress and strain monitoring fixture for rapid repair of hydrogen pipelines according to claim 6, characterized in that: The sealing gasket (5) is provided with a filling channel (51) on the inner side. The filling channel (51) is spirally arranged and a nitrile rubber sealing gasket is provided inside the filling channel (51).

Images