Buried pipeline vibration sensing device and buried gas pipeline assembly

Abstract

The buried pipeline vibration sensing device comprises a groove shell, a bottom cover and a vibration sensor, a groove opening of the groove shell faces downwards, the bottom cover is horizontally arranged and covers the groove opening of the groove shell in a sealing mode, and an installation cavity is defined by the bottom cover, the groove shell and the vibration sensor. A mounting cavity is formed in the bottom cover, a wire inlet hole and a wire outlet hole are formed in the groove wall of the groove shell, the vibration sensor is mounted in the mounting cavity, and wire protection rings are arranged at the wire inlet hole and the wire outlet hole, so that the vibration sensor can be arranged in the mounting cavity defined by the groove shell and the bottom cover and is integrally mounted on a buried pipeline; and after the groove shell and the bottom cover are connected, the vibration sensor can be subjected to waterproof and pressure-resistant treatment, and the operation stability of the vibration sensor is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of natural gas transmission pipeline network, and in particular relates to an underground pipeline vibration sensing device and an underground gas transmission pipeline assembly. Background Art

[0002] Oil and gas pipelines are characterized by long distances, complex environments around pipelines, frequent natural disasters, and much surrounding construction (and optical cables need to be laid along the oil and gas pipelines for communication). Once pipelines and optical cables are damaged by weather disasters, geological disasters, or third-party construction, oil and gas leakage and communication interruption will occur, which may cause major disasters and accidents in serious cases. Therefore, it is extremely important to ensure the safe and stable operation of oil and gas pipelines. Although all oil and gas companies currently arrange line patrol personnel to patrol the lines every day (of course, they also use drones to patrol the lines), due to the complexity of pipeline lines and human limitations, the workload of line patrol is large, and pipelines and optical cables are frequently damaged (including geological disasters, excavator construction, etc.), resulting in pipeline ruptures, oil and gas leakage, communication interruption and other serious consequences. Utility Model Content

[0003] In order to solve the above technical problems, one of the purposes of the utility model is to provide a buried pipeline vibration sensing device which has a simple structure and can be buried underground to monitor the vibration of the buried pipeline.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a buried pipeline vibration sensing device, including a slot shell, a bottom cover and a vibration sensor, the slot shell has a slot facing downward, the bottom cover is horizontally arranged and the sealing cover is arranged at the slot of the slot shell, and together they form an installation cavity, the slot wall of the slot shell is provided with an inlet hole and an outlet hole, the vibration sensor is installed in the installation cavity, and protective coils are arranged at the inlet hole and the outlet hole.

[0005] The beneficial effect of the above technical solution is that the vibration sensor can be placed in the installation cavity formed by the trough shell and the bottom cover, and installed as a whole on the buried pipe. At this time, after the trough shell and the bottom cover are connected, the vibration sensor can be waterproof and pressure-resistant, thereby improving the stability of the vibration sensor operation.

[0006] The above technical solution also includes multiple connecting parts. The notch of the trough shell is provided with an outer flange, and a plurality of connecting holes are circumferentially spaced at the outer flange. A plurality of the connecting parts are circumferentially spaced on the bottom cover, and the plurality of connecting holes correspond to the plurality of connecting parts one by one. The bottom cover is provided at the notch of the trough shell, and each of the connecting holes and the corresponding connecting part are aligned with each other. The connecting part passes through the corresponding connecting hole and fastens the trough shell to the bottom cover.

[0007] The beneficial effect of the above technical solution is that the tank shell and the bottom cover are connected with each other with better stability.

[0008] The connecting piece in the above technical solution includes a screw column and a connecting nut. The screw column is vertically connected to the corresponding part of the bottom cover. The screw column passes through the corresponding connecting hole, and the connecting nut is tightened on the corresponding screw column.

[0009] The beneficial effects of the above technical solution are: its structure is simple and it makes it easier to connect the tank shell and the bottom cover.

[0010] In the above technical solution, a sealing gasket is sandwiched between the bottom cover and the outer flange.

[0011] The beneficial effect of the above technical solution is that the sealing performance of the joint between the tank shell and the bottom cover is better.

[0012] In the above technical solution, a concave arc surface is provided on the side of the bottom cover facing away from the tank shell, which penetrates front and back and matches with the outer wall of the pipeline.

[0013] The beneficial effect of the above technical solution is that the bottom cover can be attached to the outer wall of the buried pipeline and adhered to the buried pipeline.

[0014] The surface of the concave arc surface in the above technical solution is a frosted surface.

[0015] The beneficial effect of the above technical solution is that it makes the bonding degree with the adhesive better.

[0016] In the above technical solution, "C"-shaped wire clamping grooves are arranged on the side walls on the left and right sides of the slot shell.

[0017] The beneficial effect of the above technical solution is that the conductive wires entering and exiting the slot shell can be clamped and fixed through the wire clamping slot.

[0018] In the above technical solution, the wire inlet and outlet holes are both arranged on the left or right side of the slot shell, and two wire clamping grooves are arranged on the side of the slot shell where the wire inlet and outlet holes are arranged, and the wire inlet and outlet holes are located between the two wire clamping grooves on the corresponding sides.

[0019] The beneficial effect of the above technical solution is that it makes the wiring outside the slot shell easier and avoids the bending of the conductive wire.

[0020] The above technical solution also includes a flexible cable and a steel ball. The vibration sensor is installed in the middle of the upper end of the bottom cover. One end of the flexible cable is connected to the middle of the bottom wall of the trough shell. The steel ball is connected to the other end of the flexible cable. The steel ball is supported on the upper end of the vibration sensor. The flexible cable suspends the steel ball at the upper end of the vibration sensor for movement.

[0021] The beneficial effect of the above technical solution is that the flexible rope and the steel ball can cooperate to amplify the surrounding vibration signals and directly transmit them to the vibration sensor, thus making it more sensitive to the vibration signals.

[0022] A second purpose of the utility model is to provide an underground gas pipeline assembly which has a simple structure and can perform vibration monitoring along the underground gas pipeline.

[0023] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a buried gas transmission pipeline assembly, comprising a pipeline body, an optical cable, an electrical cable and a plurality of buried pipeline vibration sensing devices as described above, the pipeline body and the optical cable are buried underground, and the optical cable is arranged along the pipeline body, a plurality of the buried pipeline vibration sensing devices are arranged at intervals on the side wall of the pipeline body along its length direction, and the electrical cable is buried underground and arranged along the pipeline body, the wire entry hole and the wire exit hole on each of the buried pipeline vibration sensing devices are respectively used for the cable to enter and exit the installation cavity, and a plurality of the vibration sensors are connected in series via the cable, and one end of the cable is used to be electrically connected to a terminal device.

[0024] The beneficial effect of the above technical solution is that: multiple buried pipeline vibration sensing devices are arranged along the pipeline body to monitor the vibration signals along the pipeline body, and the cables and optical cables are arranged along the pipeline body, and the cables connect the multiple buried pipeline vibration sensing devices in series, which makes the routing more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a cross-sectional view of the buried pipeline vibration sensing device described in Example 1 of the utility model;

[0026] Figure 2 A top view of the buried pipeline vibration sensing device described in Example 1 of the utility model;

[0027] Figure 3 This is a cross-sectional view of the buried pipeline vibration sensing device described in Example 2 of the utility model;

[0028] Figure 4 A top view of a plurality of buried pipeline vibration sensing devices in Embodiment 3 of the utility model arranged on a pipeline body;

[0029] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0030] Figure 6 This is a schematic diagram of the buried pipeline vibration sensing device described in Example 3 of the utility model being arranged on the outer wall of the pipeline body.

[0031] In the figure: 1 buried pipeline vibration sensing device; 11 tank shell; 111 inlet hole; 112 outlet hole; 113 protective wire coil; 114 outer flange; 115 connecting hole; 12 bottom cover; 121 concave arc surface; 13 vibration sensor; 14 connecting piece; 141 screw column; 142 connecting nut; 15 sealing gasket; 16 wire groove; 17 flexible rope; 18 steel ball; 2 pipeline body; 3 optical cable; 4 cable. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0033] Example 1

[0034] like Figure 1 and Figure 2 As shown, this embodiment provides a buried pipeline vibration sensing device, including a slot shell 11, a bottom cover 12 and a vibration sensor 13, the slot shell 11 has a slot facing downward, the bottom cover 12 is horizontally arranged and a sealing cover is arranged at the slot of the slot shell 11, and together they form an installation cavity, the slot wall of the slot shell 11 is provided with an inlet hole 111 and an outlet hole 112, the vibration sensor 13 is installed in the installation cavity, and a protective coil 113 (such as an existing dust-proof and waterproof coil made of silicone material) is arranged at the inlet hole 111 and the outlet hole 112, so that the vibration sensor can be placed in the installation cavity formed by the slot shell and the bottom cover, and installed as a whole on the buried pipeline, at this time, after the slot shell and the bottom cover are connected, the vibration sensor can be waterproof and pressure-resistant, thereby improving the stability of the vibration sensor operation.

[0035] See Figure 1 and Figure 2 The above technical solution also includes multiple connecting members 14. An outer flange 114 is provided at the notch of the trough shell 11. A plurality of connecting holes 115 are circumferentially spaced at the outer flange 114. A plurality of the connecting members 14 are circumferentially spaced on the bottom cover 12. The plurality of connecting holes 115 correspond to the plurality of connecting members 14 one by one. The bottom cover 12 is covered at the notch of the trough shell 11. Each of the connecting holes 115 and the corresponding connecting member 14 are aligned with each other. The connecting member 14 passes through the corresponding connecting hole 115 and fastens the trough shell 11 to the bottom cover 12, so that the stability of the connection between the trough shell and the bottom cover is better.

[0036] Specifically, the connecting member 14 includes a screw column 141 and a connecting nut 142. The screw column 141 is vertically connected to the corresponding portion of the bottom cover 12. The screw column 141 passes through the corresponding connecting hole 115, and the connecting nut 142 is tightened on the corresponding screw column 141. The structure is simple and makes it easier to connect the trough shell and the bottom cover (specifically, the screw column and the upper end of the bottom cover are integrally formed).

[0037] In this embodiment, the upper end surface of the bottom cover is a flat surface, and the trough shell and the bottom cover are both square, the screw columns are arranged at the four corners of the upper end of the bottom cover, the connecting holes are also arranged at the four corners of the outer flange, and the trough wall of the trough shell is sloped.

[0038] In the above technical solution, a sealing gasket 15 is sandwiched between the bottom cover 12 and the outer flange 114, so that the sealing performance of the joint between the tank shell and the bottom cover is better (the setting method of the sealing gasket belongs to the conventional technical means in this field and will not be repeated here).

[0039] In the above technical solution, the bottom cover 12 is provided with a concave arc surface 121 on the side away from the tank shell 11, which penetrates front and back and matches the outer wall of the pipeline, so that the bottom cover can fit and adhere to the outer wall of the buried pipeline.

[0040] The surface of the concave arc surface 121 in the above technical solution is frosted, so that it can better bond with the adhesive.

[0041] In the above technical solution, the side walls on both sides of the slot shell 11 are provided with "C"-shaped wire clamping grooves 16, so that the conductive wires entering and exiting the slot shell can be clamped and fixed through the wire clamping grooves.

[0042] In the above technical solution, the wire inlet hole 111 and the wire outlet hole 112 are both arranged on the left or right side of the slot shell 11, and two wire clamping grooves 16 are arranged on one side of the slot shell 11 where the wire inlet hole 111 and the wire outlet hole 112 are arranged, and the wire inlet hole 111 and the wire outlet hole 112 are located between the two wire clamping grooves 16 on the corresponding sides, so that the wiring outside the slot shell is simpler and the conductive wires are prevented from being bent.

[0043] In this embodiment, the vibration sensor can be installed in the middle of the upper end of the bottom cover or on the bottom wall of the tank shell. The vibration sensor can be a mature product on the market, which will not be described in detail here.

[0044] In this embodiment, the wire inlet and outlet holes are mainly used for the conductive wires to enter and exit to be electrically connected to the vibration sensor.

[0045] The protective wire loops at the wire inlet and wire outlet holes in this embodiment are mainly used to seal and waterproof the conductive wires passing through the two holes.

[0046] Example 2

[0047] Same as Example 1, except that Figure 3 As shown, the buried pipeline vibration sensing device provided in this embodiment also includes a flexible rope 17 and a steel ball 18. The vibration sensor 13 is installed in the middle of the upper end of the bottom cover 12. One end of the flexible rope 17 is connected to the middle of the inner bottom wall of the tank shell 11, and the steel ball 18 is connected to the other end of the flexible rope 17. The steel ball 18 is supported on the upper end of the vibration sensor 13. The flexible rope 17 suspends the steel ball 18 on the upper end of the vibration sensor 13 for movement. In this way, the flexible rope and the steel ball can cooperate to amplify the surrounding vibration signals and directly transmit them to the vibration sensor, which makes it more sensitive to the vibration signal.

[0048] The flexible rope in this embodiment can be a thin line similar to a fishing line. The middle part of the inner bottom wall of the trough shell and the steel ball are provided with corresponding hanging points to connect with the flexible rope. The sum of the length of the flexible rope and the diameter of the steel ball is slightly larger than the distance from the upper end of the vibration sensor to the inner bottom wall of the trough shell, so that the steel ball has a certain amount of margin of movement at the upper end of the vibration sensor (but the length of the flexible rope must also prevent the steel ball from rolling to the side of the vibration sensor).

[0049] Example 3

[0050] like Figure 4-Figure 6 As shown, this embodiment provides an underground gas transmission pipeline assembly, including a pipeline body 2, an optical cable 3, a cable 4 and a plurality of buried pipeline vibration sensing devices 1 as described in Example 1 or Example 2, wherein the pipeline body 2 and the optical cable 3 are both buried underground, and the optical cable 3 is arranged along the pipeline body 2, a plurality of the buried pipeline vibration sensing devices 1 are arranged at intervals on the side wall of the pipeline body 2 along its length direction, and the cable 4 is buried underground and arranged along the pipeline body 2, and the inlet hole 111 and the outlet hole 112 on each of the buried pipeline vibration sensing devices 1 are respectively used for the cable 4 to enter and exit the installation cavity, and a plurality of the vibration sensors 13 are connected in series through the cable 4, and one end of the cable 4 is used to be electrically connected to the terminal device, so that a plurality of buried pipeline vibration sensing devices are arranged along the pipeline body to monitor the vibration signal along the pipeline body, and the cable and the optical cable are both arranged along the pipeline body, and the cable connects a plurality of buried pipeline vibration sensing devices in series, which makes its routing more convenient.

[0051] The wire entry holes on the slot shell farthest from the terminal device can be sealed with rubber plugs (since only a single cable needs to pass through, the extra wire entry holes can be sealed).

[0052] The pipeline body in this embodiment can be a natural gas long-distance pipeline formed by butt-welding multiple sections of pipelines. A buried pipeline vibration sensing device can be installed on the pipeline body every 50-100m, and the buried pipeline vibration sensing device is preferably installed at the top of the pipeline. The trough shell and bottom cover can be made of aluminum alloy, which makes the structure strong and has good pressure-bearing performance in the later stage.

[0053] In this embodiment, two wire-clamping grooves can be arranged at intervals along the front-to-back direction on the left side of the groove shell (the wire inlet hole and the wire outlet hole are located on the left side and between the two wire-clamping grooves on the same side), and one wire-clamping groove is arranged on the right side. At this time, the cable 4 is arranged along the left side of the buried pipeline vibration sensing device 1, and the optical cable is arranged along the right side of the buried pipeline vibration sensing device 1. The optical cable is clamped in the wire-clamping groove on the right side, which can prevent the optical cable from being randomly arranged in the ditch buried along the pipeline body. Similarly, since the cable needs to be electrically connected to the vibration sensor, the cable is disconnected at the position of each of the buried pipeline vibration sensing devices and is respectively inserted into the installation cavity through the wire inlet hole and the wire outlet hole. It is electrically connected to the vibration sensor (one for input and one for output), and finally one end of the cable is electrically connected to the terminal device (computer). In this way, the buried pipeline vibration sensing device along the pipeline body can monitor the vibration signal on the surface along the pipeline body and preliminarily locate the position of the vibration signal. In this way, the source of the vibration signal can be predicted in advance and a judgment can be made whether there is a risk of endangering the pipeline body, so as to avoid damage to the pipeline due to accidental human construction. Of course, when the background personnel learn the vibration position through the terminal device, the line patrol personnel can quickly arrive at the scene to check or release the drone to the destination for inspection and remote communication.

[0054] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A buried pipeline vibration sensing device, characterized in that: The invention comprises a slot shell (11), a bottom cover (12) and a vibration sensor (13); the slot opening of the slot shell (11) faces downward, the bottom cover (12) is arranged horizontally and a sealing cover is arranged at the slot opening of the slot shell (11), and they are jointly enclosed to form an installation cavity; a slot wall of the slot shell (11) is provided with an inlet hole (111) and an outlet hole (112); the vibration sensor (13) is installed in the installation cavity, and a protective wire coil (113) is arranged at both the inlet hole (111) and the outlet hole (112).

2. The buried pipeline vibration sensing device according to claim 1, characterized in that: The invention also comprises a plurality of connecting members (14); an outer flange (114) is arranged at the notch of the tank shell (11); a plurality of connecting holes (115) are arranged at annular intervals at the outer flange (114); a plurality of connecting members (14) are arranged at annular intervals on the bottom cover (12); the plurality of connecting holes (115) and the plurality of connecting members (14) correspond one to one; the bottom cover (12) is arranged at the notch of the tank shell (11); each connecting hole (115) and the corresponding connecting member (14) are aligned with each other; the connecting member (14) passes through the corresponding connecting hole (115) and fastens the tank shell (11) to the bottom cover (12).

3. The buried pipeline vibration sensing device according to claim 2, characterized in that: The connecting member (14) comprises a screw column (141) and a connecting nut (142); the screw column (141) is vertically connected to a corresponding portion of the bottom cover (12); the screw column (141) passes through the corresponding connecting hole (115), and the connecting nut (142) is tightened onto the corresponding screw column (141).

4. The buried pipeline vibration sensing device according to claim 2 or 3, characterized in that: A sealing gasket (15) is sandwiched between the bottom cover (12) and the outer flange (114).

5. The buried pipeline vibration sensing device according to claim 1, characterized in that: A concave arc surface (121) is formed on a side of the bottom cover (12) facing away from the tank shell (11) and penetrates front to back and matches with the outer wall of the pipeline.

6. The buried pipeline vibration sensing device according to claim 5, characterized in that: The surface of the concave arc surface (121) is a frosted surface.

7. The buried pipeline vibration sensing device according to claim 2, characterized in that: The side walls on the left and right sides of the slot shell (11) are both provided with "C"-shaped wire clamping grooves (16).

8. The buried pipeline vibration sensing device according to claim 7, characterized in that: The wire inlet hole (111) and the wire outlet hole (112) are both arranged on the left side or the right side of the slot shell (11), and two wire clamping grooves (16) are arranged on the side of the slot shell (11) where the wire inlet hole (111) and the wire outlet hole (112) are arranged, and the wire inlet hole (111) and the wire outlet hole (112) are located between the two wire clamping grooves (16) on the corresponding side.

9. The buried pipeline vibration sensing device according to claim 1, characterized in that: It also includes a flexible cable (17) and a steel ball (18), wherein the vibration sensor (13) is installed at the middle of the upper end of the bottom cover (12), one end of the flexible cable (17) is connected to the middle of the inner bottom wall of the tank shell (11), the steel ball (18) is connected to the other end of the flexible cable (17), and the steel ball (18) is supported on the upper end of the vibration sensor (13), and the flexible cable (17) suspends the steel ball (18) at the upper end of the vibration sensor (13) for movement.

10. An underground gas transmission pipeline assembly, comprising a pipeline body (2) and an optical cable (3), wherein the pipeline body (2) and the optical cable (3) are both buried underground, and the optical cable (3) is arranged along the pipeline body (2), characterized in that: It also includes a cable (4) and a plurality of buried pipeline vibration sensing devices (1) as described in any one of claims 1 to 9, wherein the plurality of buried pipeline vibration sensing devices (1) are arranged at intervals on the side wall of the pipeline body (2) along its length direction, and the cable (4) is buried underground and arranged along the pipeline body (2), and the inlet hole (111) and the outlet hole (112) on each of the buried pipeline vibration sensing devices (1) are respectively used for the cable (4) to enter and exit the installation cavity, and the plurality of vibration sensors (13) are connected in series via the cable (4), and one end of the cable (4) is used to be electrically connected to a terminal device.

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