Channel leakage detection system

Abstract

The invention relates to the technical field of leakage detection, and discloses a channel leakage detection system comprising a plurality of pressure sensors used for detecting water pressure and installed in a channel; the plurality of water immersion sensors are used for detecting the water immersion condition, and the water immersion sensors are mounted at low-lying positions outside the channel; the central processing unit is used for receiving and analyzing the data of the sensor and sending information to a mobile phone terminal of a maintainer; the geographic information module generates an electronic map for calibrating the position of each sensor; the channel is continuously monitored through internal water pressure detection and external water immersion detection, and timely response is ensured; water resource waste and damage and repair cost caused by water resource waste are reduced; automatic detection is achieved, manual inspection cost is reduced, maintenance work efficiency is improved, secondary hazards and accidents are prevented, and water supply safety is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of leakage detection, and in particular to a channel leakage detection system. Background Art

[0002] Pipeline leakage refers to damage or failure of the pipeline system used to transport liquids, gases or other substances, resulting in the leakage of the substances inside.

[0003] For example, in urban water supply and drainage systems, industrial water systems, and agricultural irrigation systems, if the water supply pipes leak, it will cause waste of water resources and affect normal water use; it may even pollute the surrounding soil and groundwater.

[0004] The causes of pipeline leakage include pipeline aging, corrosion, construction quality problems, external damage (such as geological disasters, third-party construction mis-digging), etc. In order to prevent pipeline leakage, it is necessary to regularly inspect and maintain the pipeline, use high-quality pipeline materials, strengthen construction supervision, and establish a complete emergency plan. However, regular inspection and maintenance are not conducive to timely detection of leakage, resulting in waste of water resources; manual inspection is inefficient and costly, and leakage cannot be discovered in time, which may cause secondary hazards and accidents. Summary of the invention

[0005] The purpose of the present invention is to provide a channel leakage detection system in order to solve the above-mentioned problems in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions: A channel leakage detection system, comprising: A number of pressure sensors for detecting water pressure, the pressure sensors being installed in the channel; A number of water flooding sensors for detecting water flooding, the water flooding sensors being installed in low-lying areas outside the channel; Central processing unit, which receives and analyzes sensor data and sends information to the maintenance personnel's mobile terminal; Geographic information module, the geographic information module generates an electronic map that calibrates the location of each sensor.

[0007] Furthermore, it also includes a data acquisition unit and a storage module. The central processing unit receives sensor data through the data acquisition unit; the central processing unit sends information to the storage module, and the storage module stores the information.

[0008] Furthermore, the pressure sensor includes a plurality of pressure sensor groups, the pressure sensor group includes a first pressure sensor and a second pressure sensor, and the first pressure sensor and the second pressure sensor are respectively arranged at the beginning and the end of a section of a non-dividing channel.

[0009] Furthermore, the central processing unit compares the data difference between the first pressure sensor and the second pressure sensor of the pressure sensor group, and determines that there is a channel leakage when the difference is greater than a threshold.

[0010] Furthermore, the pressure sensor group also includes a third pressure sensor, which moves from the first pressure sensor to the second pressure sensor with the water flow. The third pressure sensor collects water pressure at several collection points on the moving path. When the water pressure difference between adjacent collection points is greater than a threshold, it is determined that the leakage location is between adjacent collection points.

[0011] Furthermore, it also includes a sphere for installing a third pressure sensor, a release component for releasing the sphere, and a capture component for capturing the sphere; the release component is located at the first pressure sensor of the channel, and the capture component is located at the second pressure sensor of the channel; the sphere is provided with a groove, and the third pressure sensor is installed in the groove.

[0012] Furthermore, the release component and the capture component both include a sealing cover and an annular frame for accommodating the sphere, the annular frame passes through one side of the sealing cover, and an automatic telescopic rod for driving the annular frame to move is provided on the sealing cover; when the annular frame partially extends out of the sealing cover, the extended part extends into the channel.

[0013] Furthermore, an opening is provided on one side of the sealing cover, a sealing plate for sealing the opening is provided on the outer side of the opening, and the sealing plate is connected to the sealing cover by bolts.

[0014] Furthermore, a grid for blocking the sphere is provided in the annular frame of the capture component.

[0015] Furthermore, the sphere is provided with a plurality of third pressure sensors, and the plurality of third pressure sensors collect water pressure data at the collection point, and the maximum value among the water pressure data is used as the water pressure at the collection point.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention continuously monitors the channel through internal water pressure detection and external water flooding detection to ensure timely response; reduces water resource waste and the resulting damage and repair costs; automatically detects, reduces manual inspection costs, improves maintenance work efficiency, prevents secondary hazards and accidents, and ensures water supply safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the principle of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the present invention.

[0019] Figure 3 It is a schematic diagram of a water channel of the present invention.

[0020] Figure 4It is a schematic diagram of the release component of the present invention.

[0021] Figure 5 It is a schematic diagram of the capture component of the present invention.

[0022] Figure 6 It is a schematic diagram of a sphere of the present invention.

[0023] Figure 7 It is a schematic diagram of the water pressure at the collection points of the ball moving path of the present invention.

[0024] In the figure: 1. first pressure sensor; 2. second pressure sensor; 3. sphere; 4. release assembly; 5. capture assembly; 6. third pressure sensor; 7. sealing cover; 8. annular frame; 9. automatic telescopic rod; 10. opening; 11. sealing plate; 12. grid; 13. bottom plate; 14. groove; 15. channel. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Specific embodiment 1 of the channel leakage detection system provided by the present invention: See also Figure 1 The channel leakage detection system includes: a number of pressure sensors for detecting water pressure. The pressure sensors are installed at key nodes in the channel to monitor the water pressure. If the pressure drops suddenly, it means that a leak has occurred near the upstream; a number of water immersion sensors for detecting flooding. The water immersion sensors are installed at possible leakage points in various low-lying areas outside the channel. When a leak occurs in the channel, water flows to the water immersion sensor, which will send a signal.

[0030] The data collection unit receives data from each sensor and converts it into a readable format. The control center is equipped with a central processing unit, which receives and analyzes sensor data to confirm whether there is a leak. If a leak occurs, it sends information to the mobile terminal of the maintenance personnel. The geographic information module, namely GIS, generates an electronic map that calibrates the location of each sensor. The electronic map is sent to the application of the maintenance personnel's collection terminal through the central processing unit, and the location of the sensor where the leak is detected is marked.

[0031] In some other embodiments, a text message module is included, and the central processing unit sends a text message notification to the mobile phone terminal of the maintenance personnel through the text message module.

[0032] Storage module, the central processing unit receives sensor data through the data acquisition unit; the central processing unit sends information to the storage module, and the storage module stores the detected time information and related data for subsequent analysis and reporting.

[0033] In this embodiment, a wireless communication module is included, and the sensor transmits data to the data acquisition unit through wired communication or the wireless communication module. The data acquisition unit establishes contact with the central processing unit through the wireless communication module; the central processing unit establishes contact with the maintenance personnel's mobile phone terminal through wireless communication.

[0034] The sensor continuously monitors the flooding and pressure conditions along the channel. When a pressure sensor suddenly drops in pressure or a flood sensor is flooded, a signal is sent, and the data acquisition unit sends the abnormal data to the control center. The central processing unit of the control center analyzes the data, confirms the sudden drop in pressure or flooding, determines that there is a leak, and notifies the maintenance personnel. After receiving the notification, the maintenance personnel quickly locate the leak point based on the information provided by GIS and take repair measures.

[0035] This embodiment is applicable to channel systems of various sizes, including urban water supply systems, industrial water systems, agricultural irrigation systems, etc., and is an important tool to ensure the effective management and utilization of water resources.

[0036] Specific embodiment 2 of the channel leakage detection system provided by the present invention: See also Figure 1-7 In Example 1, the canals 15 and pipes in the urban water supply system, industrial water system, and agricultural irrigation system are complicated, and the local water pressure changes caused by normal water use will interfere with the detection accuracy. Therefore, this embodiment is proposed to improve the detection accuracy.

[0037] In this embodiment, the pressure sensor includes a plurality of pressure sensor groups, and the pressure sensor group includes a first pressure sensor 1 and a second pressure sensor 2. The first pressure sensor 1 and the second pressure sensor 2 are respectively arranged at the head and tail ends of a section of a non-diverting channel. A non-diverting channel refers to a canal 15 or a pipeline without branches or forks. This embodiment is described by taking a canal 15 as an example. The first pressure sensor 1 and the second pressure sensor 2 are arranged at the bottom of the head and tail ends of a section of a non-diverting canal 15 to detect the water pressure at both ends of the section of the canal 15. Each section of the non-diverting canal 15 can be provided with a group of pressure sensor groups. In a state where a section of a canal 15 is non-diverting and non-leaking, the water pressures at both ends are similar.

[0038] When a leak occurs somewhere in a water channel 15, the flow rate on the downstream side of the leak drops suddenly, the water volume drops suddenly, and the water pressure drops significantly. The central processing unit compares the data difference between the first pressure sensor 1 and the second pressure sensor 2 of the pressure sensor group. When the difference is greater than the threshold, it is determined that the channel is leaking, that is, the water channel 15 between the pressure sensor groups has a leak.

[0039] In order to accurately determine the location of the leakage point of the long-distance non-divided canal 15. In this embodiment, the pressure sensor group also includes a third pressure sensor 6. The third pressure sensor 6 moves from the first pressure sensor 1 to the second pressure sensor 2 along with the water flow. The third pressure sensor 6 collects the water pressure of several collection points along the moving path. When the water pressure difference between adjacent collection points is greater than a threshold, it is determined that the leakage point is between adjacent collection points. Figure 7As shown, the third pressure sensor 6 detects the water pressure at various locations in the water channel 15. The location where the water pressure suddenly drops is the leakage location. In this embodiment, a number of data from the third pressure sensor 6 are selected, that is, the water pressure at a number of collection points. If the water pressure drop at adjacent collection points is greater than a threshold, it can be determined that there is a leakage at two adjacent collection points. The distance from the location to the first pressure sensor 1 or the second pressure sensor 2 is calculated, which can facilitate maintenance personnel to accurately and quickly find the leakage location and then quickly perform repairs.

[0040] In this embodiment, a sphere 3 for installing a third pressure sensor 6, a release assembly 4 for releasing the sphere 3, and a capture assembly 5 for capturing the sphere 3 are provided; the release assembly 4 is located at the first pressure sensor 1 of the channel, and the capture assembly 5 is located at the second pressure sensor 2 of the channel; a groove 14 is provided on the sphere 3, and the third pressure sensor 6 is installed in the groove 14 and does not protrude from the spherical surface, because the sphere 3 needs to roll, and the groove 14 can protect the third pressure sensor 6. The shape of the sphere 3 itself is easy to flow with the water flow, and then it can smoothly move from the first pressure sensor 1 to the second pressure sensor 2. The sphere 3 has a built-in wireless communication module and a power supply, and the wireless communication module is used to transmit the water pressure data detected by the third pressure sensor 6 to the data acquisition unit.

[0041] The release assembly 4 and the capture assembly 5 both include a sealing cover 7 and an annular frame 8 for accommodating the sphere 3. The annular frame 8 in this embodiment is a rectangular frame structure. The annular frame 8 passes through one side of the sealing cover 7. The sealing cover 7 is provided with an automatic telescopic rod 9 for driving the annular frame 8 to move. The automatic telescopic rod 9 is preferably an electric telescopic rod. When the annular frame 8 partially extends out of the sealing cover 7, the extended part extends into the channel. In this embodiment, the annular frame 8 extends into the water in the water channel 15. Because the channel in this embodiment is the water channel 15, a bottom plate 13 corresponding to the sealing cover 7 is provided on the upper side of the water channel 15. The sealing cover 7 is mounted on the bottom plate 13. The bottom plate 13 is provided with a through hole for the annular frame 8 to pass through. The annular frame 8 of the capture assembly 5 is provided with a grid 12 for blocking the sphere 3.

[0042] In normal state, the sphere 3 is located in the annular frame 8 of the release component 4; the annular frames 8 of the release component 4 and the capture component 5 are both in their sealing covers 7. When the difference between the first pressure sensor 1 and the second pressure sensor 2 is greater than the threshold value, the telescopic ends of the automatic telescopic rods 9 of the release component 4 and the capture component 5 are both extended, so that the annular frame 8 enters the water of the canal 15, and the water flow carries away the sphere 3 in the annular frame 8 of the release component 4, and the sphere 3 can roll at the bottom of the water with the water flow and then move to the second pressure sensor 2; during the movement of the sphere 3, the third pressure sensor 6 on the sphere 3 detects the water pressure. The amount of water downstream of the leak decreases, and the water pressure decreases, which will be detected by the third pressure sensor 6. When the sphere 3 moves to the annular frame 8 of the capture component 5 and is blocked by the grid 12, the water pressure detection of the moving path is completed. In some embodiments, after the sphere 3 is released, the telescopic end of the automatic telescopic rod 9 of the release component 4 retracts to retract the upstream annular frame 8 into the sealing cover 7; after the sphere 3 is captured, the telescopic end of the automatic telescopic rod 9 of the capture component 5 can automatically retract to raise the annular frame 8 and retract the sphere 3.

[0043] In this embodiment, an opening 10 is provided on one side of the sealing cover 7, and a sealing plate 11 is provided outside the opening 10 to block the opening 10, and the sealing plate 11 is connected to the sealing cover 7 by bolts. The sealing plate 11 seals the sealing cover 7, and after removing the sealing plate 11, it is convenient to move the ball 3 to reset it for the next detection.

[0044] In some other embodiments, the system can be used in a pipeline. Unlike the water channel 15, the bottom plate 13 is not required. The sealing cover 7 is directly sealed and arranged outside the pipeline. The side wall of the pipeline is provided with a through hole corresponding to the sealing cover 7 and adapted to the annular frame 8, and the through hole is passed through by the annular frame 8. In the prior art, the cross section of the pipeline is generally circular, so the annular frame 8 should adopt a circular frame structure instead of a rectangular frame structure.

[0045] Specific embodiment 3 of the channel leakage detection system provided by the present invention: The difference between this embodiment and embodiment 2 is that in embodiment 2, one third pressure sensor 6 is provided on the sphere 3, while in this embodiment, three third pressure sensors 6 are provided on the sphere 3. At the same collection point, the three third pressure sensors 6 all collect water pressure data, and the maximum value among the water pressure data is used as the collection point water pressure of the collection point.

[0046] In Example 2, even if the sphere 3 is made smaller, the height of the third pressure sensor 6 is constantly changing due to the rolling of the sphere 3, resulting in poor stability of the water pressure at the collection point. In this embodiment, multiple third pressure sensors 6 are arranged on the sphere 3, and the maximum value of the water pressure data is taken, that is, the data of the third pressure sensor 6 at the lowest position on the sphere 3 is always taken, so that the water pressure at the collection point of the moving path obtained can be stabilized, the fluctuation amplitude of the obtained water pressure data can be reduced, and the accuracy of the water pressure data can be improved, which is conducive to the detection of small leaks.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A channel leakage detection system, characterized in that: include: A number of pressure sensors for detecting water pressure, the pressure sensors being installed in the channel; A number of water flooding sensors for detecting water flooding, the water flooding sensors being installed in low-lying areas outside the channel; Central processing unit, which receives and analyzes sensor data and sends information to the maintenance personnel's mobile terminal; Geographic information module, the geographic information module generates an electronic map that calibrates the location of each sensor.

2. The channel leakage detection system according to claim 1, characterized in that: It also includes a data acquisition unit and a storage module. The central processing unit receives sensor data through the data acquisition unit; the central processing unit sends information to the storage module, and the storage module stores the information.

3. The channel leakage detection system according to claim 1, characterized in that: The pressure sensor comprises a plurality of pressure sensor groups, the pressure sensor group comprising a first pressure sensor (1) and a second pressure sensor (2), the first pressure sensor (1) and the second pressure sensor (2) being arranged at the head and tail ends of a section of a non-dividing channel respectively.

4. The channel leakage detection system according to claim 3, characterized in that: The central processing unit compares the data difference between the first pressure sensor (1) and the second pressure sensor (2) of the pressure sensor group, and determines that there is a channel leak when the difference is greater than a threshold.

5. The channel leakage detection system according to claim 3, characterized in that: The pressure sensor group further comprises a third pressure sensor (6), the third pressure sensor (6) moves with the water flow from the first pressure sensor (1) to the second pressure sensor (2), the third pressure sensor (6) collects water pressure at a plurality of collection points along the moving path, and when the water pressure difference between adjacent collection points is greater than a threshold, it is determined that the area between adjacent collection points is a leakage location.

6. The channel leakage detection system according to claim 5, characterized in that: It also comprises a sphere (3) for mounting a third pressure sensor (6), a release assembly (4) for releasing the sphere (3), and a capture assembly (5) for capturing the sphere (3); the release assembly (4) is located at the first pressure sensor (1) of the channel, and the capture assembly (5) is located at the second pressure sensor (2) of the channel; the sphere (3) is provided with a groove (14), and the third pressure sensor (6) is mounted in the groove (14).

7. The channel leakage detection system according to claim 6, characterized in that: The release assembly (4) and the capture assembly (5) both comprise a sealing cover (7) and an annular frame (8) for accommodating the sphere (3); the annular frame (8) passes through one side of the sealing cover (7); an automatic telescopic rod (9) for driving the annular frame (8) to move is provided on the sealing cover (7); when the annular frame (8) partially extends out of the sealing cover (7), the extended portion extends into the channel.

8. The channel leakage detection system according to claim 7, characterized in that: An opening (10) is provided on one side of the sealing cover (7), and a sealing plate (11) for sealing the opening (10) is provided outside the opening (10), and the sealing plate (11) is connected to the sealing cover (7) by bolts.

9. The channel leakage detection system according to claim 7, characterized in that: A mesh frame (12) for blocking the sphere (3) is provided in the annular frame (8) of the capture component (5).

10. The channel leakage detection system according to claim 6, characterized in that: The sphere (3) is provided with a plurality of third pressure sensors (6), and at a collection point, the plurality of third pressure sensors (6) collect water pressure data, and the maximum value among the water pressure data is used as the water pressure at the collection point.

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