Real-time monitoring device and monitoring system for weld stress of buried pipeline

Abstract

The application discloses a kind of buried pipeline weld seam stress real-time monitoring device and monitoring system, the buried pipeline weld seam stress real-time monitoring device includes monitor, strain gauge, first shell and second shell.The strain gauge is suitable for being installed at the weld seam of the buried pipeline, and the strain gauge is electrically connected and signal connected with the monitor;The first shell is detachably connected with the second shell, and the first shell and the second shell define a containing cavity between them, the containing cavity has first and second avoiding openings for the buried pipeline to pass through, and the strain gauge is arranged in the containing cavity.The buried pipeline weld seam stress real-time monitoring device of the embodiment of the application has the advantages of simple structure, high installation efficiency, etc.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of buried pipeline, in particular to a buried pipeline weld stress real-time monitoring device and a monitoring system. BACKGROUND

[0002] Buried pipeline is suitable for long-distance transportation of industrial steam, heating steam, natural gas, oil and the like, and is also suitable for underground direct burial of conductors for power supply lines of electrical equipment and lighting with alternating current 50 Hz and rated voltage 500 V or less or direct current 1000 V and less. Compared with overhead pipeline, buried pipeline has the advantages of good self-insulation, no influence on the normal operation of various ground facilities, saving of ground space, reduction of natural and man-made damage and the like. However, in order to ensure the normal operation of the buried pipeline, personnel need to monitor the weld stress of the buried pipeline in real time so as to timely perceive whether the buried pipeline is damaged.

[0003] In the related art, the buried part of the buried pipeline weld stress real-time monitoring device has a complex structure, and a lot of time is consumed and the installation efficiency is low during installation and laying. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the related art. To this end, the embodiments of the present application propose a buried pipeline weld stress real-time monitoring device with a simple structure and high installation efficiency, and a buried pipeline weld stress real-time monitoring system with high data transmission reliability.

[0005] The buried pipeline weld stress real-time monitoring device of the embodiments of the present application comprises a monitor, a strain gauge, a first shell and a second shell. The strain gauge is adapted to be installed at the weld of the buried pipeline, and the strain gauge is electrically and signal connected with the monitor. The first shell is detachably connected with the second shell, and a containing cavity is defined between the first shell and the second shell. The containing cavity has a first avoiding opening and a second avoiding opening for the buried pipeline to pass through, and the strain gauge is arranged in the containing cavity.

[0006] In the installation process of the buried pipeline weld stress real-time monitoring device of the embodiments of the present application, after the monitor and the strain gauge are electrically and signal connected, the first shell is connected with the first shell, and the installation of the buried part of the buried pipeline weld stress real-time monitoring device of the embodiments of the present application is completed, so that the buried pipeline weld stress real-time monitoring device of the embodiments of the present application has a simple structure, is easy to install, and can greatly improve the installation efficiency.

[0007] Therefore, the buried pipeline weld stress real-time monitoring device of the embodiments of the present application has the advantages of simple structure, high installation efficiency and the like.

[0008] In some embodiments, the first shell has a first slot extending through the first shell along a first direction, the second shell has a second slot extending through the second shell along the first direction, the first slot and the second slot both extend along a second direction, the second slot has a flared portion at an end of the second slot away from the first slot along the first direction, the first direction is consistent with a direction in which the first shell and the second shell are arranged, the second direction is perpendicular to the first direction, and the buried pipeline weld stress real-time monitoring device further comprises:

[0009] a connecting member movably connected to the first shell along the first direction, the connecting member and the second shell being switchable between a moving state and a locking state, the connecting member comprising a rod body and a stop portion connected to each other, the rod body being inserted into the first slot and the second slot along the first direction;

[0010] in the moving state, the rod body is slidable along the second direction;

[0011] in the locking state, the stop portion is located in the flared portion to lock the relative position of the connecting member and the second shell.

[0012] In some embodiments, the first shell has a first mounting hole extending along the first direction, and the buried pipeline weld stress real-time monitoring device further comprises:

[0013] a rotating rod, a portion of the rotating rod being rotatably inserted into the first mounting hole;

[0014] a movable member movably connected to an end of the rotating rod away from the second shell along the first direction, the rod body being connected to the movable member; and

[0015] a first elastic member arranged between the rotating rod and the movable member to provide the rod body with an elastic force away from the second shell.

[0016] In some embodiments, the first elastic member is a compression spring, the movable member has a mounting cavity with an opening facing the rotating rod, an end of the rotating rod away from the second shell is arranged in the mounting cavity, the first elastic member is arranged in the mounting cavity, one end of the compression spring abuts against the mounting cavity, and the other end of the compression spring abuts against the rotating rod.

[0017] In some embodiments, the first mounting hole extends through the first shell along the first direction, the second shell has a second mounting hole extending along the first direction, and a portion of the rotating rod is rotatably inserted into the second mounting hole.

[0018] In some embodiments, the second chute is provided with the flared portion on both sides of the second direction.

[0019] In some embodiments, the buried pipeline weld stress real-time monitoring device further comprises

[0020] a support connected to the first housing, the support having a first channel, the monitor being arranged on the support, the first housing having a first opening communicating the accommodating cavity and the first channel; and

[0021] a positive electrode conductive column and a negative electrode conductive column, a part of the positive electrode conductive column and a part of the negative electrode conductive column being arranged in the accommodating cavity, another part of the positive electrode conductive column and another part of the negative electrode conductive column being arranged in the first channel, the monitor having a positive electrode terminal and a negative electrode terminal, the positive electrode terminal being electrically and signal connected with the positive electrode of the strain gauge through the positive electrode conductive column, the negative electrode terminal being electrically and signal connected with the negative electrode of the strain gauge through the negative electrode conductive column.

[0022] In some embodiments, the buried pipeline weld stress real-time monitoring device further comprises:

[0023] a first clamping member and a second clamping member, the first clamping member and the second clamping member being arranged on the support, the first clamping member having a first clamping portion and a second clamping portion, the first clamping member being movably connected with the support along the second direction, the second clamping member having a third clamping portion and a fourth clamping portion, the second clamping member being movably connected with the support along the second direction, the first clamping portion and the third clamping portion cooperating to clamp the positive electrode conductive column, the second clamping portion and the fourth clamping portion cooperating to clamp the negative electrode conductive column.

[0024] In some embodiments, at least one of the first clamping portion, the second clamping portion, the third clamping portion and the fourth clamping portion is arc-shaped; and / or

[0025] at least one of the first clamping portion, the second clamping portion, the third clamping portion and the fourth clamping portion is provided with an elastic pad.

[0026] The buried pipeline weld stress real-time monitoring system of the embodiments of the present application comprises:

[0027] a plurality of buried pipeline weld stress real-time monitoring devices, the buried pipeline weld stress real-time monitoring devices being the buried pipeline weld stress real-time monitoring device of any one of the above embodiments; and

[0028] Wireless communication device, a plurality of wireless communication device one-to-one correspondence with a plurality of monitors, the wireless communication device and the corresponding monitor electrical connection and signal connection, any two adjacent wireless communication device distance is less than or equal to 5 kilometers.

[0029] Therefore, the buried pipeline weld stress real-time monitoring system of the embodiment of the application has the advantages of high data transmission reliability. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 Figure 1 is a schematic diagram of the installation of the buried pipeline weld stress real-time monitoring device of the embodiment of the application.

[0031] Figure 2 Figure 2 is a schematic diagram of the local structure of the buried pipeline weld stress real-time monitoring device of the embodiment of the application.

[0032] Figure 3 Figure 3 is an enlarged view of part A in Figure 2. Figure 2

[0033] Figure 4 Figure 4 is a schematic diagram of the local structure of the buried pipeline weld stress real-time monitoring device of the embodiment of the application from another perspective.

[0034] Figure 5 Figure 5 is an enlarged view of part B in Figure 4. Figure 4

[0035] Figure 6 Figure 6 is a sectional view of the buried pipeline weld stress real-time monitoring device of the embodiment of the application.

[0036] Figure 7 Figure 7 is an enlarged view of part C in Figure 6. Figure 6

[0037] Figure 8 Figure 8 is a sectional view of the buried pipeline weld stress real-time monitoring device of the embodiment of the application from another perspective.

[0038] Figure 9 Figure 9 is an enlarged view of part D in Figure 8. Figure 8

[0039] Figure 10 Figure 10 is a schematic diagram of the distribution of the wireless communication device of the buried pipeline weld stress real-time monitoring system of the embodiment of the application.

[0040] REFERENCE NUMERALS:

[0041] Buried pipeline weld stress real-time monitoring device 100;

[0042] Monitor 1;

[0043] Strain gauge 2; ​​​​

[0044] Buried pipeline 3;

[0045] First housing 4; first sliding groove 401; first mounting hole 402; first opening 403;

[0046] Second housing 5; second sliding groove 501; first section groove 5011; second section groove 5012; third section groove 5013; flared portion 5014; second mounting hole 502;

[0047] Accommodation cavity 6; first escape port 601; second escape port 602;

[0048] Connecting piece 7; rod body 701; stop portion 702;

[0049] Movable piece 8; mounting cavity 801;

[0050] First elastic piece 901; second elastic piece 902; third elastic piece 903;

[0051] Supporting piece 10; first channel 1001;

[0052] Positive electrode conductive column 1101; negative electrode conductive column 1102;

[0053] First clamping piece 12;

[0054] Second clamping piece 13;

[0055] Elastic pad 14;

[0056] Wireless communicator 15;

[0057] Solar panel 16;

[0058] First wire 17;

[0059] Second wire 18;

[0060] Rotating rod 19;

[0061] Sealing piece 20. DETAILED DESCRIPTION

[0062] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0063] The technical solutions of the present application are described in detail below with reference to the accompanying drawings.

[0064] As Figures 1 to 10As shown, the buried pipeline weld stress real-time monitoring device 100 of the embodiment of the present application comprises a monitor 1, a strain gauge 2, a first shell 4 and a second shell 5. The strain gauge 2 is adapted to be installed at the weld of the buried pipeline 3, the strain gauge 2 is electrically connected and signal connected with the monitor 1, the first shell 4 is detachably connected with the second shell 5, a containing cavity 6 is defined between the first shell 4 and the second shell 5, the containing cavity 6 has a first avoiding port 601 and a second avoiding port 602 for the buried pipeline 3 to pass through, and the strain gauge 2 is arranged in the containing cavity 6.

[0065] In the installation of the buried pipeline weld stress real-time monitoring device 100 of the embodiment of the present application, firstly, the strain gauge 2 is installed at the weld of the buried pipeline 3; then, the strain gauge 2 is electrically connected and signal connected with the monitor 1, the stress at the weld monitored by the strain gauge 2 is transmitted to the monitor 1 in real time, so as to monitor the stress at the weld of the buried pipeline 3 in real time; finally, the first shell 4 is connected with the second shell 5, the buried pipeline 3 passes through the first avoiding port 601 and the second avoiding port 602, and the strain gauge 2 is located in the containing cavity 6 formed by the first shell 4 and the second shell 5, so as to protect the strain gauge 2 and prevent the external environment from affecting the monitoring value of the strain gauge 2.

[0066] Therefore, in the installation process of the buried pipeline weld stress real-time monitoring device 100 of the embodiment of the present application, after the monitor 1 is electrically connected and signal connected with the strain gauge 2, the first shell 4 is only connected with the first shell 4, so that the installation of the buried part of the buried pipeline weld stress real-time monitoring device 100 of the embodiment of the present application is completed, thereby the structure of the buried pipeline weld stress real-time monitoring device 100 of the embodiment of the present application is simple, the installation is convenient, and the installation efficiency can be greatly improved.

[0067] Therefore, the buried pipeline weld stress real-time monitoring device 100 of the embodiment of the present application has the advantages of simple structure, high installation efficiency and the like.

[0068] Optionally, the monitor 1 adopts a protective outer box with a protection level not less than IP67, so as to meet the dustproof and waterproof requirements of long-term monitoring in the field.

[0069] Optionally, the first shell 4 and the second shell 5 are made of polytetrafluoroethylene corrosion-resistant material.

[0070] Optionally, the strain gauge 2 is a resistance strain gauge or a vibrating wire strain gauge.

[0071] In some embodiments, the first shell 4 has a first sliding groove 401 extending through in a first direction, the second shell 5 has a second sliding groove 501 extending through in the first direction, the first sliding groove 401 and the second sliding groove 501 both extend in a second direction, the second sliding groove 501 has a flared portion 5014 at an end away from the first sliding groove 401 in the first direction, the first direction is consistent with the arrangement direction of the first shell 4 and the second shell 5, and the second direction is perpendicular to the first direction. The buried pipeline weld stress real-time monitoring device 100 further comprises a connecting piece 7 movably connected with the first shell 4 in the first direction, the connecting piece 7 and the second shell 5 can be switched between a moving state and a locking state, the connecting piece 7 comprises a rod body 701 and a stop portion 702 connected with each other, and the rod body 701 is inserted in the first sliding groove 401 and the second sliding groove 501 in the first direction. In the moving state, the rod body 701 can slide in the second direction; in the locking state, the stop portion 702 is located in the flared portion 5014 to lock the relative position of the connecting piece 7 and the second shell 5.

[0072] In order to make the technical scheme of the present application easier to be understood, the following will further describe the technical scheme of the present application by taking the first direction consistent with the up-down direction and the second direction consistent with the front-rear direction as an example, wherein the up-down direction is as shown in Figures 1 to 9 , and the front-rear direction is as shown in Figures 1 to 5 .

[0073] As shown in Figures 3 to 5 , the first sliding groove 401 and the second sliding groove 501 correspond to each other in the up-down direction and both extend in the front-rear direction, and the lower end of the second sliding groove 501 is provided with a flared portion 5014. The connecting piece 7 is movably connected with the first shell 4 in the up-down direction, the rod body 701 of the connecting piece 7 is inserted in the first sliding groove 401 and the second sliding groove 501 in the up-down direction, and the rod body 701 can slide in the front-rear direction.

[0074] Specifically, when the buried pipeline weld stress real-time monitoring device 100 of the present application is installed, first, the first sliding groove 401 of the first shell 4 and the second sliding groove 501 on the second shell 5 are aligned in the up-down direction; then the connecting piece 7 is moved downward and the rod body 701 passes through the second sliding groove 501, and the stop portion 702 of the connecting piece 7 is placed below the second sliding groove 501, at this time the connecting piece 7 is in the moving state; secondly, the connecting piece 7 is moved in the front-rear direction, so that the stop portion 702 moves to the flared portion 5014, and the stop portion 702 and the flared portion 5014 correspond to each other in the up-down direction; finally, the connecting piece 7 is moved upward so that the stop portion 702 is located in the flared portion 5014, so that the connecting piece 7 is in the locking state, thereby locking the relative position of the connecting piece 7 and the second shell 5, and the connection of the first shell 4 and the second shell 5 is completed by using the connecting piece 7.

[0075] Therefore, the buried pipeline weld stress real-time monitoring device 100 of the present invention can achieve the connection between the first housing 4 and the second housing 5 by setting a first groove 401 on the first housing 4 and a second groove 501 on the second housing 5, and by moving the position of the connecting member 7 in the second groove 501, thereby making the connection between the first housing 4 and the second housing 5 convenient and further improving the installation efficiency of the buried pipeline weld stress real-time monitoring device 100 of the present invention.

[0076] Optionally, the second slide 501 is provided with flared portions 5014 on both sides in the second direction.

[0077] The buried pipeline weld stress real-time monitoring device 100 of this invention provides flared portions 5014 on both sides of the second chute 501. During actual installation, the position of the connector 7 can be moved forward or backward so that the stop portion 702 is placed inside the flared portion 5014 on the front side or on the flared portion 5014 on the rear side. This further facilitates the installation of the connector 7 and improves the installation efficiency of the buried pipeline weld stress real-time monitoring device 100 of this invention.

[0078] Optionally, the stop 702 is a cylindrical stop 702, and the diameter of the stop 702 is larger than the diameter of the rod 701. The second groove 501 includes a first groove 5011, a second groove 5012 and a third groove 5013 connected in sequence. The groove opening size of the first groove 5011 is larger than the diameter of the stop 702, so that the stop 702 passes through the first groove 5011 in the vertical direction. The groove opening size of the second groove 5012 is larger than the diameter of the rod 701 and smaller than the diameter of the stop 702. The groove opening size of the third groove 5013 is larger than the diameter of the rod 701 and smaller than the diameter of the stop 702. The flared part 5014 is provided in the third groove 5013.

[0079] For example, such as Figure 5 As shown, during installation, since the opening size of the first groove 5011 is larger than the diameter of the stop 702, the stop 702 of the connector 7 is first passed through the first groove 5011 from top to bottom, and positioned below the second groove 5012. Then, the connector 7 is moved so that the rod 701 moves along the second groove 5012 into the third groove 5013, and the flared portion 5014 corresponds to the stop 702 in the vertical direction. Finally, the connector 7 is moved upward so that the stop 702 is placed inside the flared portion 5014. Because the diameter of the stop 702 is larger than the opening diameter of the second groove 5012, the connector 7 cannot move from the third groove 5013 into the second groove 5012, thereby locking the relative positions of the connector 7 and the second housing 5.

[0080] In some embodiments, the first shell 4 has a first mounting hole 402 extending along a first direction, and the buried pipeline weld stress real-time monitoring device 100 further comprises a rotating rod 19, a movable element 8 and a first elastic element 901. A part of the rotating rod 19 is rotatably inserted into the first mounting hole 402, the movable element 8 is movably connected to an end of the rotating rod 19 away from the second shell 5 along the first direction, the rod body 701 is connected to the movable element 8, and the first elastic element 901 is arranged between the rotating rod 19 and the movable element 8 to provide an elastic force of the rod body 701 away from the second shell 5.

[0081] For example, as shown in FIGS. 1 to 3, the first sliding groove 401 and the second sliding groove 501 are both arc-shaped grooves, the first mounting hole 402 extends along an up-down direction, and the rotating rod 19 is rotatably inserted into the first mounting hole 402 through a bearing. The movable element 8 is movably connected to an upper end of the rotating rod 19 along the up-down direction, the upper end of the rod body 701 is connected to the movable element 8, the upper end of the first elastic element 901 is connected to the movable element 8, and the lower end of the first elastic element 901 is connected to the rotating rod 19 to provide an upward elastic force of the rod body 701. Figure 3 、 Figure 5 and Figure 7 For example, as shown in FIGS. 1 to 3, the first sliding groove 401 and the second sliding groove 501 are both arc-shaped grooves, the first mounting hole 402 extends along an up-down direction, and the rotating rod 19 is rotatably inserted into the first mounting hole 402 through a bearing. The movable element 8 is movably connected to an upper end of the rotating rod 19 along the up-down direction, the upper end of the rod body 701 is connected to the movable element 8, the upper end of the first elastic element 901 is connected to the movable element 8, and the lower end of the first elastic element 901 is connected to the rotating rod 19 to provide an upward elastic force of the rod body 701.

[0082] Specifically, in use, the buried pipeline weld stress real-time monitoring device 100 of the embodiment of the present application is pressed downwardly to the movable element 8, the movable element 8 is rotated after the stop portion 702 passes through the first section groove 5011 downwardly, and the rod body 701 is moved from the first section groove 5011 to the flared portion 5014 of the third section groove 5013 due to the arc-shaped first sliding groove 401 and the second sliding groove 501. Finally, the movable element 8 is released, and the movable element 8 is moved upwardly to the flared portion 5014 under the elastic force of the first elastic element 901, so as to realize the locking of the relative position between the connecting element 7 and the second shell 5, and thus the connection of the first shell 4 and the second shell 5 is completed.

[0083] Therefore, the buried pipeline weld stress real-time monitoring device 100 of the embodiment of the present application is provided with the rotating rod 19 and the movable element 8, which is beneficial to the movement of the connecting element 7 in the first sliding groove 401 and the second sliding groove 501, and the first elastic element 901 is provided, which is beneficial to the fast entering of the stop portion 702 into the flared portion 5014, and thus the installation efficiency of the buried pipeline weld stress real-time monitoring device 100 of the embodiment of the present application is further improved.

[0084] Optionally, the first elastic element 901 is a compression spring, the movable element 8 has a mounting cavity 801 with an opening facing the rotating rod 19, an end of the rotating rod 19 away from the second shell 5 is arranged in the mounting cavity 801, the first elastic element 901 is arranged in the mounting cavity 801, one end of the compression spring is abutted to the mounting cavity 801, and the other end of the compression spring is abutted to the rotating rod 19.

[0085] For example, as shown in FIGS. 1 to 3, the first sliding groove 401 and the second sliding groove 501 are both arc-shaped grooves, the first mounting hole 402 extends along an up-down direction, and the rotating rod 19 is rotatably inserted into the first mounting hole 402 through a bearing. The movable element 8 is movably connected to an upper end of the rotating rod 19 along the up-down direction, the upper end of the rod body 701 is connected to the movable element 8, the upper end of the first elastic element 901 is connected to the movable element 8, and the lower end of the first elastic element 901 is connected to the rotating rod 19 to provide an upward elastic force of the rod body 701.Figure 7 As shown, the movable part 8 has a mounting cavity 801 with the opening facing downward. The upper end of the rotating rod 19 is placed in the mounting cavity 801. The first elastic member 901 is placed in the mounting cavity 801. The upper end of the first elastic member 901 is connected to the top wall of the mounting cavity 801, and the lower end of the first elastic member 901 is connected to the upper end of the rotating rod 19.

[0086] Therefore, by providing an installation cavity 801 on the movable part 8 and placing the first elastic element 901 inside the installation cavity 801, it is beneficial to protect the first elastic element 901, prevent the external soil from affecting the normal operation of the first elastic element 901 after burial, improve the working reliability of the first elastic element 901, and improve the working reliability of the buried pipeline weld stress real-time monitoring device 100 of the present invention.

[0087] In some embodiments, the first mounting hole 402 extends through the first housing 4 in a first direction, the second housing 5 has a second mounting hole 502 extending in the first direction, and a portion of the rotating rod 19 is rotatably inserted into the second mounting hole 502.

[0088] For example, such as Figure 7 As shown, the first mounting hole 402 penetrates the first housing 4 in the vertical direction, and the second mounting hole 502 penetrates the second housing 502 in the vertical direction. The lower end of the rotating rod 19 is rotatably inserted into the second mounting hole 502. By providing the second mounting hole 502 and rotatably inserting the lower end of the rotating rod 19 into the second mounting hole 502, it is beneficial to limit the first housing 4 and the second housing 5 in the front-back and left-right directions, which is beneficial to further improve the reliability of the connection between the first housing 4 and the second housing 5, and to improve the connection reliability of the buried pipeline weld stress real-time monitoring device 100 of this embodiment of the invention.

[0089] In some embodiments, the buried pipeline weld stress real-time monitoring device 100 of the present invention further includes a support member 10, a positive conductive post 1101, and a negative conductive post 1102. The support member 10 is connected to the first housing 4, and the support member 10 has a first channel 1001. The monitor 1 is disposed on the support member 10, and the first housing 4 has a first opening 403 that connects the receiving cavity 6 and the first channel 1001.

[0090] A portion of the positive conductive post 1101 and a portion of the negative conductive post 1102 are disposed within the receiving cavity 6, while the other portion of the positive conductive post 1101 and the other portion of the negative conductive post 1102 are disposed within the first channel 1001. The monitor 1 has a positive terminal and a negative terminal. The positive terminal is electrically and signal-connected to the positive terminal of the strain gauge 2 through the positive conductive post 1101, and the negative terminal is electrically and signal-connected to the negative terminal of the strain gauge 2 through the negative conductive post 1102.

[0091] As shown in Figure 1 , Figure 6 and Figure 9 , the positive conductive column 1101 is located at the left side of the negative conductive column 1102, the lower end of the positive conductive column 1101 is placed in the accommodation cavity 6 and connected with the positive pole of the strain gauge 2, the upper end of the positive conductive column 1101 is placed in the first channel 1001 through the first opening 403 and connected with the monitor 1 through the first lead wire 17. The lower end of the negative conductive column 1102 is connected with the negative pole of the strain gauge 2, the upper end of the negative conductive column 1102 is placed in the first channel 1001 through the first opening 403 and connected with the monitor 1 through the second lead wire 18, so as to realize the electrical connection and signal connection between the monitor 1 and the strain gauge 2.

[0092] Therefore, the buried pipeline weld seam stress real-time monitoring device 100 of the embodiment of the present application is provided with the positive conductive column 1101 and the negative conductive column 1102, which is conducive to the electrical connection and signal connection between the strain gauge 2 and the monitor 1, and is conducive to further improving the installation efficiency of the buried pipeline weld seam stress real-time monitoring device 100 of the embodiment of the present application.

[0093] In some embodiments, the buried pipeline weld seam stress real-time monitoring device 100 of the embodiment of the present application further comprises a first clamping piece 12 and a second clamping piece 13, both of which are arranged on the support piece 10. The first clamping piece 12 has a first clamping part and a second clamping part, and is movably connected with the support piece 10 in the second direction. The second clamping piece 13 has a third clamping part and a fourth clamping part, and is movably connected with the support piece 10 in the second direction. The first clamping part and the third clamping part cooperate to clamp the positive conductive column 1101, and the second clamping part and the fourth clamping part cooperate to clamp the negative conductive column 1102.

[0094] For example, as shown in Figure 6 and Figure 9 , the first clamping piece 12 is located at the front side of the second clamping piece 13, and both of them are movably connected with the support piece 10 in the front-rear direction. The first clamping part and the third clamping part clamp the positive conductive column 1101 in the front-rear direction, and the second clamping part and the fourth clamping part clamp the negative conductive column 1102 in the front-rear direction, so as to stably fix the positive conductive column 1101 and the negative conductive column 1102 in the accommodation cavity 6. This can effectively avoid the influence of the position change of the positive conductive column 1101 and the negative conductive column 1102 on the monitoring result of the strain gauge 2, and is conducive to the monitoring accuracy of the buried pipeline weld seam stress real-time monitoring device 100 of the embodiment of the present application.

[0095] Optionally, at least one of the first clamping part, the second clamping part, the third clamping part and the fourth clamping part is arc-shaped.

[0096] The fact that at least one of the first clamping part, the second clamping part, the third clamping part, and the fourth clamping part is arc-shaped can be understood as one of the first clamping part, the second clamping part, the third clamping part, and the fourth clamping part being arc-shaped, or each of the first clamping part, the second clamping part, the third clamping part, and the fourth clamping part being arc-shaped.

[0097] Therefore, by making at least one of the first clamping part, the second clamping part, the third clamping part, and the fourth clamping part arc-shaped, the positive electrode conductive post 1101 and the negative electrode conductive post 1102 can be limited in the front-back and left-right directions by using the arc-shaped opening. This is beneficial to further improve the clamping stability of the positive electrode conductive post 1101 and the negative electrode conductive post 1102, and to further improve the monitoring accuracy of the buried pipeline weld stress real-time monitoring device 100 of the present invention.

[0098] Optionally, the buried pipeline weld stress real-time monitoring device 100 of this embodiment further includes a second elastic element 902 and a third elastic element 903. The second elastic element 902 is disposed between the first clamping member 12 and the support member 10. One end of the second elastic element 902 abuts against the first housing 4, and the other end of the second elastic element 902 abuts against the first clamping member 12. The second elastic element 902 provides an elastic force toward the second clamping member 13. The third elastic element 903 is disposed between the second clamping member 13 and the support member 10. One end of the third elastic element 903 abuts against the first housing 4, and the other end of the third elastic element 903 abuts against the second clamping member 13. The third elastic element 903 provides an elastic force toward the first clamping member 12.

[0099] For example, such as Figure 9 As shown, both the second elastic element 902 and the third elastic element 903 are compression springs. During installation, by moving the first clamping member 12 to the left and the second clamping member 13 to the right, the positive conductive post 1101 and the negative conductive post 1102 pass through the first opening 403 in the vertical direction. Then, the elastic force of the second elastic element 902 and the third elastic element 903 clamps the positive conductive post 1101 and the negative conductive post 1102 in the front-back direction. Thus, by setting the second elastic element 902 and the third elastic element 903, and using the elastic force of the second elastic element 902 and the third elastic element 903 to clamp the positive conductive post 1101 and the negative conductive post 1102, it is further beneficial to quickly install the positive conductive post 1101 and the negative conductive post 1102, and further beneficial to improve the installation efficiency of the buried pipeline weld stress real-time monitoring device 100 of this embodiment of the invention.

[0100] Optionally, at least one of the first clamping part, the second clamping part, the third clamping part and the fourth clamping part is provided with an elastic pad 14.

[0101] At least one of the first clamping part, the second clamping part, the third clamping part and the fourth clamping part is provided with the elastic pad 14. It can be understood that one of the first clamping part, the second clamping part, the third clamping part and the fourth clamping part is provided with the elastic pad 14, or each of the first clamping part, the second clamping part, the third clamping part and the fourth clamping part is provided with the elastic pad 14.

[0102] Therefore, by providing the elastic pad 14 in at least one of the first clamping part, the second clamping part, the third clamping part and the fourth clamping part, the positive electrode conductive column 1101 and the negative electrode conductive column 1102 are protected, and the first clamping piece 12 and the second clamping piece 13 are prevented from clamping the positive electrode conductive column 1101 and the negative electrode conductive column 1102, thereby affecting the signal current and signal transmission performance of the positive electrode conductive column 1101 and the negative electrode conductive column 1102, and the working reliability of the buried pipeline weld stress real-time monitoring device 100 of the embodiment of the application is improved.

[0103] Optionally, the buried pipeline weld stress real-time monitoring device 100 of the embodiment of the application further comprises a sealing piece 20, and the sealing piece 20 is arranged in each of the first avoiding opening 601 and the second avoiding opening 602 to seal the accommodation cavity 6 and prevent external media from entering the installation cavity 801 to affect the strain gauge 2.

[0104] Optionally, the buried pipeline weld stress real-time monitoring device 100 of the embodiment of the application further comprises a solar panel 16, and the solar panel 16 is electrically connected with the monitor 1 to provide electric energy for the monitor 1.

[0105] The buried pipeline weld stress real-time monitoring system of the embodiment of the application comprises a plurality of buried pipeline weld stress real-time monitoring devices 100, a plurality of wireless communication devices 15 and a server. The buried pipeline weld stress real-time monitoring device 100 is the buried pipeline weld stress real-time monitoring device 100 in any one of the above embodiments, the plurality of wireless communication devices 15 are provided, the plurality of wireless communication devices 15 correspond to the plurality of monitors 1 one by one, the wireless communication device 15 is electrically connected and signal connected with the corresponding monitor 1, the distance between any two adjacent wireless communication devices 15 is less than or equal to 5 kilometers, and the server is signal connected with the wireless communication device.

[0106] For example, as shown in FIG. 9, the buried pipeline weld stress real-time monitoring system of the embodiment of the application comprises a plurality of buried pipeline weld stress real-time monitoring devices 100, a plurality of wireless communication devices 15 and a server. Figure 1 and Figure 10As shown, the wireless communication device 15 comprises a LoRa self-organizing network module and an antenna, adopts a LoRa (Long Range Radio) local area network wireless standard and a wireless mesh network technology, the communication distance of each node is about 5 kilometers, generally there are multiple strain monitoring points within 5 kilometers, sufficient redundancy is left between the nodes, and after individual node damage, the mesh network automatically bypasses the node to complete communication through other nodes, to ensure that in the area without wireless network signal coverage, self-organizing network communication and stable transmission of signals are realized, and finally the strain data collected by the monitor is transmitted to the server, the server analyzes, evaluates and diagnoses the stress signal, so as to realize real-time monitoring of the stress of each buried pipeline weld.

[0107] Therefore, the buried pipeline weld stress real-time monitoring system of the embodiment of the application has the advantages of high data transmission reliability.

[0108] Therefore, the buried pipeline weld stress real-time monitoring system of the embodiment of the application has the advantages of high data transmission reliability.

[0109] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0110] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0111] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", "fixedly connected", "connection", "fixedly connected", "connected", "fixed", and the like should be construed broadly, for example, can be fixed connection, can be detachable connection, or integral; can be mechanical connection, can be electrical connection or communication with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0112] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "under" and "under" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0113] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0114] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and cannot be construed as limiting the present application, and changes, modifications, replacements and variations of the above embodiments made by those skilled in the art are within the scope of the present application.

Claims

1. A buried pipeline weld stress real-time monitoring device, characterized in that, The utility model relates to a kind of buried pipeline monitoring device, including: monitor; Strain gauge, the strain gauge is suitable for being installed at the weld of the buried pipeline, and the strain gauge is electrically connected and signal connection with the monitor; And First shell and second shell, the first shell is detachably connected with the second shell, the first shell and the second shell define accommodating cavity between, the accommodating cavity has first and second avoiding mouth for the buried pipeline to pass through, the strain gauge is located in the accommodating cavity, the first shell has first sliding groove through in first direction, the second shell has second sliding groove through in the first direction, the first sliding groove and the second sliding groove all extend along second direction, the first direction is consistent with the arrangement direction of the first shell and the second shell, the second direction is perpendicular to the first direction, the first shell has first mounting hole extending along the first direction, the first mounting hole is through the first shell along the first direction, the second shell has second mounting hole extending along the first direction, the second sliding groove has flared portion at the end of the first direction away from the first sliding groove, the second sliding groove is equipped with the flared portion on both sides of the second direction; Connecting piece, the connecting piece is movably connected with the first shell along the first direction, the connecting piece and the second shell can be switched between moving state and locking state, the connecting piece includes connected rod body and stop portion, the rod body is inserted in the first sliding groove and the second sliding groove along the first direction;In the moving state, the rod body can slide along the second direction; In the locking state, the stop portion is located in the flared portion to lock the relative position of the connecting piece and the second shell; Rotary lever, part of the rotary lever is rotatably inserted into the first mounting hole, part of the rotary lever is rotatably inserted into the second mounting hole; Movable element, the movable element is movably connected with the end of the rotary lever away from the second shell along the first direction, the rod body is connected with the movable element; First elastic element, the first elastic element is arranged between the rotary lever and the movable element to provide the rod body with elastic force away from the second shell, the first elastic element is compression spring, the movable element has mounting cavity with opening towards the rotary lever, the end of the rotary lever away from the second shell is arranged in the mounting cavity, the first elastic element is arranged in the mounting cavity, one end of the compression spring is abutted to the mounting cavity, the other end of the compression spring is abutted to the rotary lever; Support, the support is connected with the first shell, the support has first channel, the monitor is arranged on the support, the first shell has first opening communicating the accommodating cavity and the first channel. A positive conductive column and a negative conductive column, a part of the positive conductive column and a part of the negative conductive column are arranged in the accommodating cavity, another part of the positive conductive column and another part of the negative conductive column are arranged in the first channel, the monitor has a positive terminal and a negative terminal, the positive terminal is electrically and signal connected with the positive pole of the strain gauge through the positive conductive column, and the negative terminal is electrically and signal connected with the negative pole of the strain gauge through the negative conductive column.

2. The apparatus of claim 1, wherein, Further comprising: A first clamping member and a second clamping member, the first clamping member and the second clamping member are arranged on the support member, the first clamping member has a first clamping part and a second clamping part, the first clamping member is movably connected with the support member along the second direction, the second clamping member has a third clamping part and a fourth clamping part, the second clamping member is movably connected with the support member along the second direction, the first clamping part cooperates with the third clamping part to clamp the positive conductive column, and the second clamping part cooperates with the fourth clamping part to clamp the negative conductive column.

3. The apparatus of claim 2, wherein, At least one of the first clamping part, the second clamping part, the third clamping part and the fourth clamping part is arc-shaped; and / or At least one of the first clamping part, the second clamping part, the third clamping part and the fourth clamping part is provided with an elastic pad.

4. A buried pipeline weld stress real-time monitoring system characterized by, Comprising: A plurality of buried pipeline weld stress real-time monitoring devices, the buried pipeline weld stress real-time monitoring device is the buried pipeline weld stress real-time monitoring device in any one of claims 1-3; A plurality of wireless communicators, the plurality of wireless communicators correspond to the plurality of monitors one by one, the wireless communicator is electrically and signal connected with the corresponding monitor, and the distance between any two adjacent wireless communicators is less than or equal to 5 kilometers; And A server, the server is signal connected with the wireless communicator.

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