Pipeline damage early warning system

Abstract

The invention relates to the technical field of pipeline monitoring, in particular to a pipeline damage early warning system which comprises a pipe section, a weak current signal network, a signal generator and a signal receiver, the weak current signal network is composed of a plurality of wires arranged in the circumferential direction, the length direction and the spiral direction of the pipe section, and the tightening state of the wires is kept through elastic pieces. When the surface of the pipeline is damaged, the weak current signal network in the corresponding area can be damaged, fluctuation of monitoring signals is caused, whether the pipeline is damaged or not is judged, and the approximate damaged position of the pipeline is obtained according to the crossed area of the affected longitudinal line and the affected spiral line. According to the invention, tiny deformation and damage of the pipeline can be effectively detected, and the safety and reliability of the pipeline are improved.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline monitoring, and in particular to a pipeline damage early warning system. Background Art

[0002] A comprehensive drainage network is a prerequisite for improving the living environment and building beautiful cities. However, with the long-term operation of municipal drainage networks, problems such as aging facilities, pipe leakage, and damage by external entities have become prominent.

[0003] Over time, damaged pipe sections generally cause the following impacts: 1. Soil erosion, leading to road collapse and safety accidents; 2. Water accumulation in the pipe, leading to blockage of the pipe section and overflow upstream, causing environmental accidents; 3. Intrusion of foreign water, resulting in "impure" sewage, causing production accidents in sewage treatment plants.

[0004] Typically, damage to underground pipe sections caused by pipe pulling or jacking is difficult to detect in the short term. Such problems can only be discovered through CCTV inspections during pipe maintenance. Ultimately, the long lead time to discover the problem causes the optimal repair time to be missed, leading to the aforementioned impacts.

[0005] How to use simple methods to detect damage to pipe sections during pipe pulling or jacking construction as soon as possible, so as to deal with it immediately and ensure the safe operation of drainage pipe sections is one of the difficulties in drainage maintenance and management. Summary of the Invention

[0006] In order to detect damaged pipe sections in a short period of time, the present application provides a pipeline damage early warning system.

[0007] The pipeline damage early warning system provided in this application adopts the following technical solutions: A pipeline damage early warning system includes a pipeline section, a weak current signal network, a signal generator and a signal receiver. The plurality of pipe sections are used to be interconnected to form a pipe network. The weak current signal network is connected to the pipe section and includes several wires. Several of the wires are spaced apart along the circumference of the pipe segment, a portion of the wires extend along the length direction of the pipe segment, and another portion of the wires extend along the spiral direction. The signal generator and the signal receiver are connected to both ends of the wire.

[0008] By adopting the above technical solution, the weak current signal network is composed of wires extending along the length direction and wires extending along the spiral direction, which can cover the entire pipe section and ensure that signal changes can be generated when any position is damaged.

[0009] Signal generators and receivers installed at both ends of the pipe segment monitor the status of the weak-current signal network in real time. Any signal changes trigger an alarm, allowing rapid location of the damaged section. Damage to the pipe segment disrupts the weak-current signal network in the corresponding area, causing fluctuations in the monitoring signal. This allows users to determine if the pipe segment is damaged. The location of the damaged section is determined by the intersection of the affected longitudinal lines (conductors running along the length of the pipe segment) and the spiral lines (conductors running in a spiral direction). The denser the intersection of the longitudinal and spiral lines, the more accurate the location.

[0010] The real-time monitoring function shortens the time period for problem discovery, avoiding problems such as soil erosion, road collapse, pipe blockage and guest water intrusion caused by long-term undetected damage, effectively ensuring the safe operation of drainage pipes and reducing potential safety accident risks.

[0011] Preferably, the pitch of the wire extending in the spiral direction is greater than or equal to the length of the tube segment.

[0012] By adopting the above technical solution, each longitudinal line and each spiral line has only one intersection area, so that the location where the pipe section is damaged can be determined based on the intersection area of the affected longitudinal line and spiral line.

[0013] Preferably, the weak-current signal network is embedded in the pipe wall of the pipe section.

[0014] By adopting the above technical solution, the weak current signal network is prevented from contacting soil and sewage, ensuring signal stability, and then, when the monitoring signal fluctuates, it is possible to promptly and accurately determine whether the pipe section is damaged.

[0015] Preferably, the weak current signal network further includes a plurality of elastic members. The elastic member is connected between the wire and the pipe section, and is used to keep the wire in a taut state.

[0016] By adopting the above technical solution, the wire in a taut state is highly sensitive to external forces, ensuring that the weak current signal network is destroyed as the pipe section is destroyed, so that when the pipe section is destroyed, the monitoring signal fluctuates.

[0017] Preferably, the wire is provided with a breakable point.

[0018] By adopting the above technical solution, the breaking position of the conductor does not necessarily have to coincide with the damaged position of the pipe section.

[0019] Setting fragile points increases the sensitivity of the system. When the pipeline is damaged by external forces, the fragile points on the wire will break first, generating a significant signal change, thereby issuing an alarm promptly and accurately, and quickly locating the damaged location.

[0020] Controlling the break position of the conductor at an appropriate location is conducive to repairing the weak current signal network during the process of repairing the pipe section.

[0021] Preferably, the conductor includes wire 1 and wire 2. The outer periphery of the end of the wire rod 1 is provided with a connecting groove. The end of the second wire is connected with a connecting piece, and the connecting piece is used to be embedded in the connecting groove.

[0022] By adopting the above technical solution, the connecting groove reduces the cross-sectional area of the wire at that location, forming the above-mentioned easy-to-break point.

[0023] Preferably, a plurality of connecting grooves are provided at intervals along the length direction of the wire.

[0024] By adopting the above technical solution, during the process of repairing the pipe section, the connector is embedded in the connecting groove closest to the second wire to repair the weak current signal network.

[0025] Preferably, the outer periphery of the wire is covered with a tensile layer.

[0026] By adopting the above technical solution, the tensile layer is used to increase the strength of the pipe section; if the pipe wall of the pipe section breaks, the fragments will not fall off, making it easier to fill the gap with quick-drying cement and other materials for subsequent repair; the tensile layer provides protection for the conductors.

[0027] Preferably, when the conductive wire is in a taut state, the anti-tension layer is sleeved onto the outside of the connector, and the anti-tension layer adheres to the wire and the connector.

[0028] By employing this technical solution, the tensile layer prevents bending of wire 1 at the connection slot, ensuring close contact between the connector and wire 1 and improving the stability and reliability of signal transmission. When a pipe segment is impacted by a pulling pipe or a jacking pipe, the pipe wall dents, causing the tensile layer to bend. This bending of the wire is compensated for by the elastic member. Specifically, the connection slot remains essentially stationary, while the tensile layer bends, causing the end of the tensile layer to shift, exposing the connection slot and connector. This can lead to wire disconnection at these locations, causing fluctuations in the monitoring signal.

[0029] In summary, this application includes at least one of the following beneficial technical effects: 1. Real-time monitoring of pipeline damage, timely detection of pipeline damaged areas through changes in weak current signal networks, avoiding missing the best repair opportunity due to a long problem detection cycle, and effectively preventing safety accidents and environmental pollution; 2. Improve the accuracy of pipeline damage positioning. The dense grid structure formed by the intersection of longitudinal lines and spiral lines can accurately locate the damaged parts, reducing the maintenance workload and time cost; 3. Simplify the inspection process. Without the need for complex equipment and technical support, pipeline status assessment can be quickly completed during daily inspections, reducing operating and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a block diagram of the pipeline damage early warning system.

[0031] Figure 2 is a block diagram of a pipeline damage early warning system in another embodiment.

[0032] Figure 3 It is a schematic diagram of the weak current signal network embedded in the pipe wall.

[0033] Figure 4 This is a schematic diagram of the elastic part connected to the pipe section and the wire.

[0034] Figure 5 This is a schematic diagram showing that wire 1 and wire 2 are connected to each other.

[0035] Figure 6 This is a schematic diagram showing the disconnection between wire 1 and wire 2.

[0036] Explanation of the accompanying reference numerals: 1. Pipe section; 11. Receiving slot; 12. Card slot; 13. Installation slot; 14. Embedded slot; 15. Operating space; 2. Weak-current signal network; 21. Wire; 211. Wire one; 212. Wire two; 213. Connecting slot; 214. Connecting piece; 22. Longitudinal line; 23. Spiral line; 24. Elastic piece; 25. Metal sheet; 26. Connecting piece; 3. Signal generator; 4. Signal receiver; 5. Tensile layer; 6. Protective plate. DETAILED DESCRIPTION

[0037] The present application is further described in detail below with reference to the accompanying drawings.

[0038] Reference Figure 1 The embodiment of the present application discloses a pipeline damage early warning system, including a pipeline section 1, a weak current signal network 2, a signal generator 3 and a signal receiver 4.

[0039] Several pipe sections 1 are used to communicate with each other to form a pipe network.

[0040] The weak-current signal network 2 corresponds to the pipe section 1 one-to-one, and is embedded in the pipe wall of the pipe section 1, so that when the pipe section 1 is destroyed, the weak-current signal network 2 is also destroyed.

[0041] The signal generator 3 and the signal receiver 4 are connected to both ends of the weak-current signal network 2 along the length direction of the pipe section 1 to cause monitoring signal fluctuations when the weak-current signal network 2 is damaged.

[0042] Reference Figure 1In one embodiment, the signal generator 3 and the signal receiver 4 correspond to each pipe segment 1 one by one, the A end of any pipe segment 1 is connected to the B end of another pipe segment 1, the signal generator 3 is located at the A end of the pipe segment 1, and the signal receiver 4 is located at the B end of the pipe segment 1.

[0043] Reference Figure 2 In another embodiment, the A end of any pipe segment 1 is connected to the A end of another pipe segment 1, and the B end of any pipe segment 1 is connected to the B end of yet another pipe segment 1. The two directly connected A ends share a signal generator 3, and the two directly connected B ends share a signal receiver 4.

[0044] Reference Figure 3 The weak current signal network 2 includes several conductors 21. Conductors 21 can be made of copper, aluminum, or other materials with good electrical conductivity. A portion of conductors 21 extends along the length of the pipe segment 1, defined as longitudinal conductors 22. The remaining conductors 21 extend in a spiral direction, defined as spirals 23. Furthermore, the pitch of the spirals 23 is greater than or equal to the length of the pipe segment 1. Preferably, the pitch of the spirals 23 is greater than the length of the pipe segment 1.

[0045] The longitudinal lines 22 and the spiral lines 23 are arranged at intervals along the circumference of the pipe section 1, and there is no conduction between the longitudinal lines 22 and the spiral lines 23.

[0046] In an example of a weak current signal network 2, a signal generator 3, and a signal receiver 4: one end of all the wires 21 are connected to the signal generator 3 after being paralleled; the signal receiver 4 and the other end of each wire 21 are independently connected.

[0047] In another example of the weak current signal network 2 and the signal generator 3 and the signal receiver 4 , the signal generator 3 and one end of each wire 21 are independently connected; and the signal receiver 4 and the other end of each wire 21 are independently connected.

[0048] Signal generator 3 can be a simple DC power supply or an oscillator capable of generating an AC signal of a specific frequency. Signal receiver 4 can be a highly sensitive oscilloscope or data acquisition card, used to monitor signal changes in real time. If an external force is applied to a portion of pipe section 1, causing conductor 21 to break, signal receiver 4 will immediately detect the signal interruption or abnormal fluctuation, triggering an alarm.

[0049] Reference Figure 4 The weak current signal network 2 further includes an elastic member 24. The elastic member 24 corresponds to the wire 21. The elastic member 24 is connected between the wire 21 and the pipe section 1, and is used to keep the wire 21 in a taut state.

[0050] Specifically: the elastic member 24 can be a metal spring; a receiving groove 11 can be provided at the end surface of the pipe section 1 to accommodate the elastic member 24; at the same time, a card slot 12 is provided at the wall of the receiving groove 11, Figure 4 In the figure, the slot 12 passes through the end face of the pipe section 1; one end of the metal spring is connected to a metal sheet 25, which is embedded in the slot 12; the other end of the metal spring is connected to one end of the wire 21; the other end of the wire 21 is fixedly connected to the pipe section 1; the signal generator 3 or the signal receiver 4 can be connected to the metal sheet 25 to transmit the signal.

[0051] Reference Figure 5 , the wire 21 is provided with a breakable point. As the wire 21 is stressed, the breakable point is first disconnected.

[0052] Reference Figure 4 and Figure 5 The wire 21 includes a wire 1 211 and a wire 2 212 . One end of the wire 1 211 is fixedly connected to the elastic member 24 .

[0053] The other end of the wire 1 211 is provided with a plurality of connection grooves 213 to form the aforementioned breakable point. The plurality of connection grooves 213 are spaced apart along the length direction of the wire 1 211 .

[0054] One end of the second wire 212 is connected to a connector 214, which is used to be embedded in the connection groove 213. Moreover, when the connector 214 is embedded in the connection groove 213, the outer surfaces of the connector 214 and the first wire 211 are flush.

[0055] The other end of the wire 212 is fixedly connected to the pipe section 1. Specifically: a mounting groove 13 is provided at the end surface of the pipe section 1; a recessed groove 14 is provided at the wall of the mounting groove 13; Figure 5 the other end of the wire 212 is connected to a connecting piece 26, the connecting piece 26 is embedded in the embedding groove 14, the connecting piece 26 is conductive, the signal generator 3 or the signal receiver 4 can be connected to the connecting piece 26 to transmit the signal.

[0056] Reference Figure 4 and Figure 5 The pipeline damage early warning system further includes a tensile layer 5. The tensile layer 5 can be made of high-strength materials such as nylon fiber, carbon fiber or Kevlar fiber. These materials are not only light and soft, but also have excellent mechanical properties.

[0057] The tensile layer 5 is embedded in the wall of the pipe section 1. The tensile layer 5 is sleeved on the outside of the conductor 21. One end of the tensile layer 5 is fixedly connected to the pipe section 1.

[0058] Specifically, one end of the tensile layer 5 is located in the receiving groove 11 , and the tensile layer 5 is fixedly connected to the groove wall of the receiving groove 11 ; the fixing method can be bonding, rivets, etc.

[0059] The other end of the tensile layer 5 extends into the mounting groove 13 , and when the wire 21 is in a taut state, the tensile layer 5 can be sleeved onto the outside of the connector 214 , and the tensile layer 5 fits the wire 1 211 and the connector 214 .

[0060] Under normal conditions, the tensile layer 5 prevents the first wire 211 from bending at the connection groove 213 , and the first wire 211 and the second wire 212 remain in a conductive state to transmit signals.

[0061] Reference Figure 5 and Figure 6 When pipe section 1 is hit by the pulling pipe or the jacking pipe: The wall of the pipe section 1 will be concave, which will cause the tensile layer 5 to bend; the tensile layer 5 is fixed at one end in the receiving groove 11, and the end of the tensile layer 5 in the mounting groove 13 will shrink (attached Figure 5 In the figure, the tensile layer 5 moves to the left); The second wire 212 is fixedly connected to the pipe section 1, that is, the position of the connecting piece 214 does not move; due to the movement of the tensile layer 5, the connecting piece 214 is exposed; this process is also accompanied by the extension of the elastic piece 24 (metal spring); Once the connector 214 is exposed, the elastic force of the elastic member 24 and the pulling force of the concave wall of the pipe section 1 on the wire 1 211 will cause the wire 1 211 to bend or break at the connecting groove 213. The wire 1 211 and the wire 2 212 are disconnected, the signal transmission is interrupted, and the monitoring signal fluctuates.

[0062] If the pipe section 1 is damaged and detected in a short time, the pipe section 1 can be repaired in time. During the repair process of the pipe section 1, the connector 214 can be re-inserted into a certain connecting groove 213 to keep monitoring the repaired pipe section 1.

[0063] Reference Figure 6 In order to facilitate reconnection of wire 1 211 and wire 2 212, an operating space 15 penetrating the outer circumference of the pipe section 1 can be provided at the installation groove 13, and the operating space 15 can be covered by a protective plate 6. The protective plate 6 can be made of the same material as the pipe section 1.

[0064] When reconnecting wire 1 211 and wire 2 212, first pull the protective layer and wire 1 211 ( Figure 6 Then, insert the connecting piece 214 into the appropriate connecting groove 213 and allow the connecting piece 214 to extend into the protective layer; then, insert the connecting piece 26 into the embedding groove 14; and then install the protective plate 6.

[0065] The implementation principle of a pipeline damage early warning system in an embodiment of the present application is as follows: by laying a weak current signal network 2 on the outer wall of the pipeline, all-round monitoring of the pipeline surface can be achieved. When a part of the pipeline is damaged by external factors, the corresponding wire 21 will be cut, causing the signal emitted by the signal generator 3 to fluctuate abnormally in that area. The signal receiver 4 receives and analyzes these signals in real time. Once an abnormality is detected, it can quickly issue an alarm to notify relevant personnel to conduct on-site inspections and repairs. Compared with traditional manual inspections and professional equipment detection methods, this early warning system has the advantages of simple operation, low cost, and fast response speed. It can effectively prevent various safety accidents caused by pipeline damage and ensure the safe operation of urban infrastructure.

[0066] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pipeline damage early warning system, characterized in that: It includes a pipe section (1), a weak current signal network (2), a signal generator (3) and a signal receiver (4), The plurality of pipe sections (1) are used to be interconnected to form a pipe network, The weak current signal network (2) is connected to the pipe section (1), and the weak current signal network (2) includes a plurality of wires (21). A plurality of the conductive wires (21) are arranged at intervals along the circumference of the pipe section (1), a portion of the conductive wires (21) extend along the length direction of the pipe section (1), and another portion of the conductive wires (21) extend along the spiral direction. The signal generator (3) and the signal receiver (4) are connected to both ends of the wire (21).

2. The pipeline damage early warning system according to claim 1, characterized in that: The pitch of the wire (21) extending in the spiral direction is greater than or equal to the length of the pipe section (1).

3. The pipeline damage early warning system according to claim 1, characterized in that: The weak current signal network (2) is embedded in the pipe wall of the pipe section (1).

4. The pipeline damage early warning system according to claim 1, characterized in that: The weak current signal network (2) further includes a plurality of elastic members (24), The elastic member (24) is connected between the wire (21) and the pipe section (1), and the elastic member (24) is used to keep the wire (21) in a taut state.

5. The pipeline damage early warning system according to claim 4, characterized in that: The conductor (21) is provided with a breakable point.

6. The pipeline damage early warning system according to claim 5, characterized in that: The conductor (21) includes a first wire (211) and a second wire (212). The outer periphery of the end of the wire rod 1 (211) is provided with a connecting groove (213). The end of the second wire (212) is connected to a connecting piece (214), and the connecting piece (214) is used to be embedded in the connecting groove (213).

7. The pipeline damage early warning system according to claim 6, characterized in that: A plurality of connecting grooves (213) are provided at intervals along the length direction of the wire 1 (211).

8. The pipeline damage early warning system according to claim 6, characterized in that: The outer periphery of the conductor (21) is covered with a tensile layer (5).

9. The pipeline damage early warning system according to claim 8, characterized in that: When the conductive wire (21) is in a tensioned state, the anti-tension layer (5) is sleeved onto the outside of the connector (214), and the anti-tension layer (5) is adhered to the wire (211) and the connector (214).

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