Pipeline leakage detection device and detection method

Abstract

The invention provides a pipeline leakage detection device and method, and belongs to the field of pipeline detection.The method comprises the steps that an intelligent video detection sensing device advances along a pipeline, the motion trail of bubbles or suspended particles in fluid in the pipeline is detected through the intelligent video detection sensing device, and whether leakage exists in the pipeline or not is judged; the leakage condition comprises leakage position and leakage amount detection. The device comprises an intelligent video detection sensing device located in the pipeline, a carrier connected with the intelligent video detection sensing device, a transmission cable connected with the carrier, and a terminal controller connected with the transmission cable. According to the invention, rapid detection of pipeline leakage can be realized, the position of a leakage point and the leakage amount can be accurately determined, the method is suitable for leakage detection of an automatic flow pipe and a pressure flow pipeline, and the pipeline does not need to be subjected to plugging precipitation and complex pretreatment work.

Description

Technical Field

[0001] The present invention relates to the field of pipeline detection, and in particular to a pipeline leakage detection device and a detection method. Background Art

[0002] Pipes are a common channel for material transmission, including drainage pipes, fire water pipes, grey water pipes and tap water pipes. When the pipes are not installed tightly, or when there are misalignments, disconnections, ruptures, etc. during operation, leakage often occurs. Take the sewage pipe network in the drainage network as an example. When external water such as groundwater and surface water leaks into the sewage pipe network, on the one hand, the concentration of sewage is diluted, causing the terminal sewage treatment plant to operate at high load and low efficiency. On the other hand, external water leakage invades and squeezes the pipe space, increasing the risk of sewage overflow. When the sewage pipe network leaks out, it causes water environment or soil pollution.

[0003] In terms of pipeline leakage detection technology, the commonly used detection methods currently include water closure test, leak detection method, correlation analyzer method, water quality and quantity inspection method, and CCTV detection method. Among them, the leak detection method and the correlation analyzer method are currently only used for pressure pipelines, and when the noise background signal is low. The CCTV detection method can only be used to obtain results through simple video observation after plugging, precipitation and silt removal. The water quality and quantity detection method has large errors and can generally only be used for leakage detection in pipe sections. The water closure test cannot be detected in the operating state, the pre-treatment project is large, and it can only be used for leakage detection in pipe sections. Summary of the invention

[0004] The purpose of this patent is to solve the problems mentioned in the above background technology, and to provide a pipeline leakage detection device and detection method, which can solve the rapid detection of pipeline leakage, accurately determine the location of the leakage point and the leakage amount, and is suitable for leakage detection of gravity pipes and pressure flow pipes. The pipeline does not need to be blocked and dewatered or complex pretreatment work. The intelligent video detection of the present invention is fast and can be used for pipeline leakage detection under various working conditions, and can accurately locate and quantitatively detect the leakage point.

[0005] The technical solution of the present invention provides: a pipeline leakage detection method, wherein an intelligent video detection sensor device is moved along the pipeline, and the movement trajectory of bubbles or suspended particles in the fluid in the pipeline is detected by the intelligent video detection sensor device to determine whether there is a leakage inside the pipeline, and the leakage situation includes leakage position and leakage amount detection.

[0006] Preferably, the intelligent video detection sensor device is moved along the pipeline by utilizing the power of the pipeline fluid itself, or by traction, or by a robot carrier, enters the pipeline, and performs detection along the pipeline.

[0007] Preferably, the bubbles or suspended particles may be present in the pipeline fluid, or may be generated by an intelligent video detection sensor device.

[0008] Preferably, the intelligent video detection sensor device is a position sensor assembled with intelligent video detection, specifically an intelligent video sensor.

[0009] Preferably, the leakage position is detected and located by an intelligent video detection sensor device.

[0010] Preferably, the leakage amount is detected by performing video scanning of the flow velocity and cross-section by an intelligent video detection sensor device for integral calculation, or by intelligently calculating the leakage flow rate through big data model training.

[0011] Preferably, the light source used in the intelligent video detection sensor device is selected from one or a combination of natural light source, visible light source, infrared light source, laser light source.

[0012] A pipeline leakage detection device using the above method includes an intelligent video detection sensor device located inside the pipeline, a carrier connected to the intelligent video detection sensor device, a transmission cable connected to the carrier, and a terminal controller connected to the transmission cable.

[0013] Working principle: The intelligent video detection sensor device is moved along the pipeline by utilizing the pipeline fluid's own power, or by traction, or by a robot carrier. The intelligent video sensor detects the movement trajectory of bubbles or suspended particles in the fluid in the pipeline to determine whether there is leakage inside the pipeline. The bubbles or suspended particles can be inherent in the pipeline fluid or generated by the detection device.

[0014] Beneficial effects of the present invention: 1. The present invention adopts intelligent video detection, and judges the external water intrusion and pipeline seepage through video observation of the running trajectory of bubbles and suspended (floating) particles in the pipeline medium, and judges the leakage amount through flow velocity and cross section. This method can realize in-situ detection of pipeline leakage, does not require precipitation and pretreatment, and has the advantages of simplicity, convenience, accurate detection and positioning, and high detection accuracy.

[0015] 2. The present invention can detect the leakage of pipeline fluid under different filling conditions, accurately locate the leakage point, and quantitatively detect the leakage flow. The present invention is simple and fast in detection and is suitable for pipeline leakage detection under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0017] Figure 1 It is a schematic diagram of the structure of the detection device of the present invention.

[0018] Among them, 1. pipeline, 2. pipeline fluid, 3. leakage point, 4. bubbles or particles, 5. intelligent video detection sensor device, 6. carrier, 7. transmission cable, 8. terminal controller. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0021] The present invention is described in further detail below by way of examples. Example

[0022] A pipeline leakage detection method is provided, wherein an intelligent video detection sensor device is moved along the pipeline, and the movement trajectory of bubbles or suspended particles in the fluid in the pipeline is detected by the intelligent video detection sensor device to determine whether there is leakage inside the pipeline, wherein the leakage situation includes leakage position and leakage amount detection.

[0023] In this embodiment, the intelligent video detection sensor device is moved along the pipeline by utilizing the power of the pipeline fluid itself, or by traction, or by a robot carrier, enters the pipeline, and performs detection along the pipeline.

[0024] In this embodiment, the bubbles or suspended particles may be present in the pipeline fluid, or may be generated by an intelligent video detection sensor device.

[0025] In this embodiment, the intelligent video detection sensor device is a position sensor assembled with intelligent video detection, specifically an intelligent video sensor.

[0026] In this embodiment, the leakage position is detected and located by an intelligent video detection sensor device.

[0027] In this embodiment, the leakage amount is detected by performing video scanning flow velocity and cross-section integral calculation through an intelligent video detection sensor device, or by intelligently calculating the leakage flow through big data model training.

[0028] In this embodiment, the light source used in the intelligent video detection sensor device is selected from one or a combination of natural light source, visible light source, infrared light source, laser light source.

[0029] A pipeline leakage detection device using the above method comprises an intelligent video detection sensor device 5 located inside the pipeline, a carrier 6 connected to the intelligent video detection sensor device 5, a transmission cable 7 connected to the carrier 6, and a terminal controller 8 connected to the transmission cable (7).

[0030] Working principle: The intelligent video detection sensor device is moved along the pipeline by utilizing the pipeline fluid's own power, or by traction, or by a robot carrier. The intelligent video sensor detects the movement trajectory of bubbles or suspended particles in the fluid in the pipeline to determine whether there is leakage inside the pipeline. The bubbles or suspended particles can be inherent in the pipeline fluid or generated by the detection device.

[0031] The above describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claim involved.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pipeline leakage detection method, characterized in that: The intelligent video detection sensor device is moved along the pipeline, and the movement trajectory of bubbles or suspended particles in the fluid in the pipeline is detected by the intelligent video detection sensor device to determine whether there is leakage inside the pipeline. The leakage situation includes leakage location and leakage amount detection.

2. The method according to claim 1, characterized in that: The intelligent video detection sensor device is moved along the pipeline by utilizing the power of the pipeline fluid itself, or by traction, or by a robot carrier, enters the pipeline, and performs detection along the pipeline.

3. The method according to claim 1, characterized in that: The bubbles or suspended particles may be present in the pipeline fluid itself, or may be generated by an intelligent video detection sensor device.

4. The method according to claim 1, characterized in that: The intelligent video detection sensor device is a position sensor assembled with intelligent video detection, specifically an intelligent video sensor.

5. The method according to claim 1, characterized in that: The leakage position is detected and located by intelligent video detection sensor device.

6. The method according to claim 1, characterized in that: Leakage detection is carried out by using intelligent video detection sensors to perform video scanning of flow velocity and cross-section for integral calculation, or by intelligently calculating leakage flow through big data model training.

7. The method according to claim 1, characterized in that: The light source used in the intelligent video detection sensor device is selected from one or a combination of natural light sources, visible light sources, infrared light sources, and laser light sources.

8. A pipeline leakage detection device using any one of the methods of claims 1-7, characterized in that: The invention comprises an intelligent video detection sensor device (5) located inside a pipeline, a carrier (6) connected to the intelligent video detection sensor device (5), a transmission cable (7) connected to the carrier (6), and a terminal controller (8) connected to the transmission cable (7).

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