An on-line monitoring system for temperature stress deformation of a buried pipeline

Abstract

The application discloses a kind of buried pipeline temperature difference stress deformation on-line monitoring system, including pipeline;Pipeline: its outer side is equipped with protection mechanism, protection mechanism includes upper protective cover, hexagon bolt, lower protective cover, the left and right ends of the upper protective cover and lower protective cover are fixedly connected by the hexagon bolt of uniform setting, pipeline is located at the clearance of upper protective cover and lower protective cover;Wherein: the inside top wall of the upper protective cover is plane, the inside top wall of upper protective cover is respectively provided with infrared temperature sensor and controller, the input end of the controller is electrically connected external power supply, the output end of infrared temperature sensor is electrically connected the input end of controller, this buried pipeline temperature difference stress deformation on-line monitoring system, it is convenient to carry out on-line monitoring to the temperature difference stress deformation of pipeline, it is more convenient to use, can effectively reduce the influence caused by external vibration to pipeline deformation, make monitoring data more accurate, longer service life.

Description

Technical Field

[0001] This invention relates to the field of buried pipeline stress deformation monitoring technology, specifically to an online monitoring system for temperature difference stress deformation of buried pipelines. Background Technology

[0002] Urban buried pipelines are vital urban infrastructure, serving as the lifeline for the organic connection and operation of various urban functional areas. Due to their long-term underground burial, over time, factors such as soil properties and topographic subsidence can cause corrosion, perforation, and leakage, resulting in significant losses to the country. Economic losses caused by construction and corrosion of oil and gas pipelines can be categorized into direct and indirect losses. Furthermore, buried pipelines are affected by temperature changes, leading to deformation due to thermal expansion and contraction. When the deformation exceeds safe limits, the pipeline risks rupture. Current technologies typically use sensitive grids to monitor pipeline stress and deformation, lacking protection for the internal structure and being susceptible to external vibrations, resulting in inaccurate monitoring data and a short service life. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an online monitoring system for temperature difference stress deformation of buried pipelines. This system facilitates online monitoring of temperature difference stress deformation of pipelines, is more convenient to use, has better internal structural protection performance, can effectively reduce the impact of external vibration on pipeline deformation, makes monitoring data more accurate, and also facilitates the arrangement of internal wiring, making the wiring less prone to loosening and extending its service life. This system can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an online monitoring system for temperature difference stress deformation of buried pipelines, comprising the pipeline;

[0005] Pipeline: A protective mechanism is installed on its outer side. The protective mechanism includes an upper protective cover, hexagonal bolts, and a lower protective cover. The left and right ends of the upper and lower protective covers are fixedly connected by evenly arranged hexagonal bolts. The pipeline is located in the gap between the upper and lower protective covers.

[0006] The upper protective cover has a flat inner top wall, which is equipped with an infrared temperature sensor and a controller. The input of the controller is electrically connected to an external power source, and the output of the infrared temperature sensor is electrically connected to the input of the controller. This facilitates online monitoring of the pipeline's temperature stress deformation, making it more convenient to use. The internal structure provides better protection, effectively reducing the impact of external vibrations on pipeline deformation, making the monitoring data more accurate. It also facilitates the arrangement of internal wiring, preventing the wiring from becoming loose and extending its service life.

[0007] Furthermore, a strain gauge is bonded to the lower end of the outer side of the pipeline. The strain gauge is located inside the lower protective cover, and the output end of the strain gauge is electrically connected to the input end of the controller, which can monitor the deformation of the pipeline in real time.

[0008] Furthermore, the upper edge of the lower protective cover is symmetrically provided with stepped grooves, and the lower edge of the upper protective cover is symmetrically provided with protrusions that cooperate with the stepped grooves, so as to facilitate the snap-fit ​​of the upper and lower protective covers.

[0009] Furthermore, the lower protective cover is provided with buckles at equal intervals on both the left and right sides. The buckles correspond to the positions of the hexagonal bolts on the same side. The upper ends of the buckles are engaged with the edge of the upper protective cover, and the lower ends of the hexagonal bolts are threaded with nuts that engage with the lower ends of the buckles, making the installation of the upper and lower protective covers more secure and stable.

[0010] Furthermore, both the upper and lower protective covers are provided with buffer components on their outer arc surfaces. The buffer components include elastic plates and protective plates. The elastic plates are all wavy. Both the upper and lower protective covers are provided with elastic plates on their outer arc surfaces, and the outer sides of the elastic plates are provided with protective plates, which play a buffering role against external vibrations.

[0011] Furthermore, both sides of the inner arc surface of the upper and lower protective covers are provided with arc-shaped buffer pads that contact the outer side of the pipeline, which facilitates sealing and protection of the left and right ends of the upper and lower protective covers.

[0012] Furthermore, the opening at the upper end of the upper protective cover is fixedly connected to the wire trough via a connecting component. A fastening strip is fastened to the upper end of the wire trough. Both the upper elastic plate and the outer side of the upper protective plate are provided with clearance holes that cooperate with the connecting component, facilitating the organization of the internal wiring.

[0013] Furthermore, the connecting assembly includes a fixing sleeve, a rotating sleeve, a notch, and a conduit. The conduit is located at the opening at the upper end of the upper protective cover, and the fixing sleeve is located at the opening at the lower end of the wire trough. The rotating sleeve is rotatably connected inside the fixing sleeve. The upper outer surface of the conduit is provided with a protruding strip that mates with the lower inner edge of the rotating sleeve. Notches are evenly distributed on the upper edge of the conduit. The outer sides of the upper elastic plate and the upper protective plate are both provided with clearance holes that mate with the conduit, facilitating the positioning and installation of the wire trough.

[0014] Furthermore, the lower end of the rotating sleeve engages with the threaded connection at the lower end of the outer side of the conduit, and a rubber tube is inserted into the lower opening of the wire groove. The lower end of the rubber tube is located inside the conduit, which facilitates clamping and fixing the wire.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This online monitoring system for temperature difference stress deformation of buried pipelines has the following advantages:

[0016] 1. Attach the strain gauge to the lower outer side of the pipeline. Then, install the upper and lower protective covers onto the outer side of the pipeline, positioning the strain gauge inside the lower protective cover. At this point, the protrusion on the lower edge of the upper protective cover mates with the corresponding stepped groove on the upper edge of the lower protective cover. Simultaneously, the upper end of the clip engages with the outer side of the upper protective cover, thus limiting the movement of the upper and lower protective covers. Next, pass the hexagonal bolt through the stepped hole at the edge of the upper protective cover and tighten the nut at the lower end of the hexagonal bolt until the nut engages with the lower end of the corresponding clip, thus fixing the upper and lower protective covers. This provides protection for the internal structure, while the elastic plate and protective plate buffer external vibrations, greatly reducing the impact of external vibrations on pipeline deformation and making the monitoring data more accurate.

[0017] 2. Align the rotating sleeve at the lower end of the fixing sleeve with the protruding strip at the upper end of the conduit, so that the rotating sleeve is snapped into the upper end of the conduit, facilitating the positioning and installation of the wire trough. Then, the wires inside the upper and lower protective covers pass through the rubber tube inside the conduit and are located inside the wire trough. Rotate the rotating sleeve to connect it with the threaded connection provided on the lower end of the outer side of the conduit. The inclined surface at the upper end of the rotating sleeve aligns with the protruding strip. Because the upper edge of the conduit has evenly distributed notches, the upper end of the conduit contracts inward, and the middle of the rubber tube contracts to clamp and fix the wires, preventing the wires inside the upper and lower protective covers from detaching during subsequent wiring inside the wire trough. This facilitates the arrangement of internal wires and provides protection for the internal wires.

[0018] 3. The infrared temperature sensor can monitor the temperature of the outer surface of the pipeline in real time and feed the information back to the controller. The sensitive grid resistance inside the strain gauge will change with the deformation of the pipeline. The strain gauge also feeds the information back to the controller. The controller integrates the temperature and deformation of the pipeline and feeds it back to the external monitoring terminal, which facilitates online monitoring of the thermal stress deformation of the pipeline and makes it more convenient to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure on the left side of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Pipeline, 2. Protective mechanism, 21. Upper protective cover, 22. Hex bolt, 23. Lower protective cover, 3. Connecting assembly, 31. Fixing sleeve, 32. Rotary sleeve, 33. Notch, 34. Conduit, 341. Raised strip, 4. Infrared temperature sensor, 5. Controller, 6. Strain gauge, 7. Arc-shaped buffer pad, 8. Buffer assembly, 81. Elastic plate, 82. Protective plate, 9. Cable trough, 10. Fastener strip, 11. Rubber tube, 12. Step groove, 13. Buckle. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-3 The present invention provides a technical solution: an online monitoring system for temperature difference stress deformation of buried pipelines, including pipeline 1;

[0026] Pipeline 1: A protective mechanism 2 is installed on its outer side. The protective mechanism 2 includes an upper protective cover 21, hexagonal bolts 22, and a lower protective cover 23. The left and right ends of the upper protective cover 21 and the lower protective cover 23 are fixedly connected by evenly spaced hexagonal bolts 22. Pipeline 1 is located in the gap between the upper protective cover 21 and the lower protective cover 23. The upper edge of the lower protective cover 23 is symmetrically provided with stepped grooves 12. The lower edge of the upper protective cover 21 is symmetrically provided with bosses that mate with the stepped grooves 12. The left and right sides of the lower protective cover 23 are evenly spaced with... Clip 13 is positioned corresponding to the hexagonal bolt 22 on the same side. The upper end of clip 13 engages with the edge of the upper protective cover 21. The lower end of the hexagonal bolt 22 is threaded with a nut that engages with the lower end of clip 13. The upper protective cover 21 and the lower protective cover 23 are then installed onto the outer side of the pipeline 1, so that the strain gauge 6 is located inside the lower protective cover 23. At this time, the boss on the lower edge of the upper protective cover 21 engages with the corresponding stepped groove 12 on the upper edge of the lower protective cover 23. Simultaneously, the upper end of clip 13 engages with the outer side of the upper protective cover 21. The upper protective cover 21 and the lower protective cover 23 are locked in place by a snap-fit ​​mechanism. Then, a hexagonal bolt 22 is passed through the stepped hole at the edge of the upper protective cover 21 and the nut at the lower end of the hexagonal bolt 22 is tightened until the nut engages with the lower end of the corresponding snap-fit ​​13, thus fixing the upper protective cover 21 and the lower protective cover 23. This facilitates the installation and fixation of the upper and lower protective covers 21 and 23, providing protection for the internal structure. Both the upper and lower protective covers 21 and 23 have a buffer assembly 8 on their outer arc surfaces. The buffer assembly 8 includes... The elastic plate 81 and the protective plate 82 are both corrugated. The outer arc surface of the upper protective cover 21 and the lower protective cover 23 are provided with the elastic plate 81, and the outer side of the elastic plate 81 is provided with the protective plate 82. They can buffer external vibrations and greatly reduce the impact of external vibrations on the deformation of pipeline 1, making the monitoring data more accurate. The left and right sides of the inner arc surface of the upper protective cover 21 and the lower protective cover 23 are provided with arc-shaped buffer pads 7 that contact the outer side of pipeline 1 to seal the edges of the upper protective cover 21 and the lower protective cover 23.

[0027] The upper protective cover 21 has a flat inner top wall. An infrared temperature sensor 4 and a controller 5 are respectively installed on the inner top wall of the upper protective cover 21. The input terminal of the controller 5 is electrically connected to an external power supply, and the output terminal of the infrared temperature sensor 4 is electrically connected to the input terminal of the controller 5. A strain gauge 6 is attached to the lower end of the outer side of the pipeline 1. The strain gauge 6 is located inside the lower protective cover 23. The output terminal of the strain gauge 6 is electrically connected to the input terminal of the controller 5. The infrared temperature sensor 4 can monitor the temperature of the outer side of the pipeline 1 in real time and feed back information to the controller 5. The sensitive grid resistance inside the strain gauge 6 changes with the deformation of the pipeline 1. The strain gauge 6 also feeds back information to the controller 5. The controller 5 integrates the temperature and deformation of the pipeline 1 and feeds it back to the external monitoring terminal, which facilitates online monitoring of the temperature difference stress deformation of the pipeline 1.

[0028] The upper protective cover 21 has an opening at its upper end that is fixedly connected to the wire trough 9 via a connecting component 3. A fastening strip 10 is fastened to the upper end of the wire trough 9. Both the upper elastic plate 81 and the upper protective plate 82 have clearance holes on their outer surfaces that mate with the connecting component 3. The connecting component 3 includes a fixing sleeve 31, a rotating sleeve 32, a notch 33, and a wire guide tube 34. The wire guide tube 34 is located at the opening at the upper end of the upper protective cover 21. The fixing sleeve 31 is located at the lower opening of the wire trough 9. The rotating sleeve 32 is rotatably connected inside the fixing sleeve 31. The upper outer surface of the wire guide tube 34 has a protrusion 341 that mates with the lower inner edge of the rotating sleeve 32. Notches 33 are evenly distributed along the upper edge of the wire guide tube 34. Both the upper elastic plate 81 and the upper protective plate 82 have clearance holes that mate with the wire guide tube 34. The lower end of the rotating sleeve 32 mates with the threaded thread at the lower end of the outer surface of the wire guide tube 34. A rubber tube is inserted into the lower opening of the wire trough 9. 11. The lower end of the rubber tube 11 is located inside the conduit 34. The rotating sleeve 32 at the lower end of the fixing sleeve 31 is engaged with the protrusion 341 at the upper end of the conduit 34, so that the rotating sleeve 32 is snapped into the upper end of the conduit 34, which facilitates the positioning and installation of the wire trough 9. Then, the wires inside the upper protective cover 21 and the lower protective cover 23 pass through the rubber tube 11 inside the conduit 34 and are located inside the wire trough 9. Rotate the rotating sleeve 32 so that the rotating sleeve 32 is connected to the threaded thread provided at the lower end of the outer side of the conduit 34. The inclined surface at the upper end of the rotating sleeve 32 engages with the protrusion 341. Because the upper edge of the conduit 34 is evenly provided with notches 33, the upper end of the conduit 34 shrinks inward and the middle part of the rubber tube 11 shrinks to clamp and fix the wires, so as to prevent the wires inside the upper protective cover 21 and the lower protective cover 23 from detaching when wiring inside the wire trough 9 later. This facilitates the arrangement of the internal wires and provides protection for the internal wires.

[0029] In use: Attach the strain gauge 6 to the lower outer side of pipeline 1. Then, install the upper protective cover 21 and the lower protective cover 23 onto the outer side of pipeline 1, so that the strain gauge 6 is located inside the lower protective cover 23. At this time, the boss on the lower edge of the upper protective cover 21 engages with the corresponding stepped groove 12 on the upper edge of the lower protective cover 23. Simultaneously, the upper end of the buckle 13 engages with the outer side of the upper protective cover 21, thereby limiting the movement of the upper protective cover 21 and the lower protective cover 23. Then, pass the hexagonal bolt 22 through the upper protective cover... Tighten the step hole at the edge of cover 21 and the nut at the lower end of hexagonal bolt 22 until the nut engages with the lower end of the corresponding clip 13, thereby fixing the upper protective cover 21 and the lower protective cover 23. Engage the rotating sleeve 32 at the lower end of the fixing sleeve 31 with the protrusion 341 at the upper end of the conduit 34, so that the rotating sleeve 32 engages with the upper end of the conduit 34, facilitating the positioning and installation of the wire trough 9. Then, the wiring inside the upper protective cover 21 and the lower protective cover 23 passes through the rubber tube 11 inside the conduit 34 and is located in the wire trough 9. Inside, rotating the rotating sleeve 32 connects it to the threaded connection at the lower end of the outer side of the conduit 34. The inclined surface at the upper end of the rotating sleeve 32 mates with the protrusion 341. Because the upper edge of the conduit 34 is uniformly provided with notches 33, the upper end of the conduit 34 contracts inward, and the middle part of the rubber tube 11 contracts to clamp and fix the line, preventing the line inside the upper protective cover 21 and the lower protective cover 23 from detaching during subsequent wiring in the wire trough 9. The infrared temperature sensor 4 can monitor the temperature of the outer side of the pipeline 1 in real time and feed back information to the controller 5. The sensitive grid resistance inside the strain gauge 6 changes with the deformation of the pipeline 1. The strain gauge 6 also feeds back information to the controller 5. The controller 5 integrates the temperature and deformation of the pipeline 1 and feeds it back to the external monitoring terminal, which facilitates online monitoring of the temperature difference stress deformation of the pipeline 1 and makes it more convenient to use. At the same time, the elastic plate 81 and the protective plate 82 can buffer external vibrations, greatly reducing the impact of external vibrations on the deformation of the pipeline 1 and making the monitoring data more accurate.

[0030] It is worth noting that the infrared temperature sensor 4 and strain gauge 6 disclosed in this embodiment can be freely configured according to the actual application scenario. It is recommended that the infrared temperature sensor 4 be a ZTP-135SR infrared temperature sensor, and the strain gauge 6 be a 1-RDS 20 strain gauge. It is recommended that the core chip inside the controller 5 be an AT90 series microcontroller. The controller 5 controls the operation of the infrared temperature sensor 4 and strain gauge 6 using methods commonly used in the prior art.

[0031] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An on-line monitoring system for temperature stress deformation of a buried pipeline, characterized in that, The pipeline (1) comprises a pipeline (1); The pipeline (1) is provided with a protection mechanism (2) on the outer side, the protection mechanism (2) comprises an upper protection cover (21), a hexagonal bolt (22) and a lower protection cover (23), the left and right ends of the upper protection cover (21) and the lower protection cover (23) are fixedly connected through the uniformly arranged hexagonal bolts (22), and the pipeline (1) is located at the gap between the upper protection cover (21) and the lower protection cover (23); The inner top wall of the upper protection cover (21) is a plane, and the inner top wall of the upper protection cover (21) is provided with an infrared temperature sensor (4) and a controller (5), respectively; the input end of the controller (5) is electrically connected with an external power supply, and the output end of the infrared temperature sensor (4) is electrically connected with the input end of the controller (5); The outer arc surfaces of the upper protection cover (21) and the lower protection cover (23) are provided with buffer assemblies (8), and the buffer assemblies (8) comprise elastic plates (81) and protection plates (82); the elastic plates (81) are all wave-shaped, the outer arc surfaces of the upper protection cover (21) and the lower protection cover (23) are provided with the elastic plates (81), and the outer sides of the elastic plates (81) are provided with the protection plates (82). The opening at the upper end of the upper protection cover (21) is fixedly connected with a wire slot (9) through a connecting assembly (3), the upper end of the wire slot (9) is buckled with a buckling strip (10), and the outer sides of the upper end elastic plate (81) and the upper end protection plate (82) are provided with avoiding holes matched with the connecting assembly (3); The connecting assembly (3) comprises a fixed sleeve (31), a rotating sleeve (32), an opening (33) and a wire pipe (34); the wire pipe (34) is arranged at the opening at the upper end of the upper protection cover (21), the fixed sleeve (31) is arranged at the lower end opening of the wire slot (9), the inner part of the fixed sleeve (31) is rotatably connected with the rotating sleeve (32), the outer side of the upper end of the wire pipe (34) is provided with a convex strip (341) matched with the inner lower edge of the rotating sleeve (32), the upper edge of the wire pipe (34) is uniformly provided with the openings (33), and the outer sides of the upper end elastic plate (81) and the upper end protection plate (82) are provided with avoiding holes matched with the wire pipe (34).

2. The on-line monitoring system for temperature stress deformation of buried pipeline according to claim 1, characterized in that, The outer side of the lower end of the pipeline (1) is bonded with a strain gauge (6), the strain gauge (6) is located in the inner part of the lower protection cover (23), and the output end of the strain gauge (6) is electrically connected with the input end of the controller (5).

3. The on-line monitoring system for temperature stress deformation of buried pipeline according to claim 1, characterized in that, The upper edge of the lower protection cover (23) is provided with step grooves (12) which are left-right symmetrical, and the lower edge of the upper protection cover (21) is provided with convex platforms matched with the step grooves (12).

4. The on-line monitoring system for temperature stress deformation of buried pipeline according to claim 1, characterized in that, The left and right sides of the lower protection cover (23) are provided with buckles (13) which are equally spaced, the buckles (13) are positionally corresponding to the hexagonal bolts (22) on the same side, the upper ends of the buckles (13) are all clamped with the edges of the upper protection cover (21), and the lower ends of the hexagonal bolts (22) are all threadedly connected with nuts matched with the lower ends of the buckles (13) for clamping.

5. The on-line monitoring system for temperature stress deformation of buried pipeline according to claim 1, characterized in that, The inner arc surfaces of the left and right sides of the upper protection cover (21) and the lower protection cover (23) are all provided with arc-shaped buffer pads (7) in contact with the outer side of the pipeline (1).

6. The on-line monitoring system for temperature stress deformation of buried pipeline according to claim 1, characterized in that, The lower end of the rotating sleeve (32) is matched with the screw thread arranged at the lower end of the outer side of the threading pipe (34), the rubber pipe (11) is inserted into the opening at the lower end of the wire slot (9), and the lower end of the rubber pipe (11) is located in the interior of the threading pipe (34).

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