Pipeline deformation detection device

Abstract

The utility model discloses a pipeline deformation detection device, relates to the technical field of pipeline inspection and detection, and can greatly reduce the possibility of major safety accidents caused by pipeline deformation. In the pipeline deformation detection device, a laser sensor is used for converting an electric signal into a laser signal and transmitting the laser signal to the surface of a pipeline, and is also used for converting the laser signal reflected by the surface of the pipeline into an electric signal and carrying out later signal processing; the laser sensor driving and signal processing device is used for supplying power to the laser sensor and performing data processing on an electric signal fed back by the laser sensor; the laser sensor driving and signal processing device comprises a driving circuit and a signal processing circuit which are connected with the laser sensor, the driving circuit is connected with a processor, and the processor is connected with the signal processing circuit; the processor is connected with a communication module, and the communication module is connected with a tablet computer.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection and testing technology, and in particular to a pipeline deformation detection device. Background Technology

[0002] In industries such as petroleum, natural gas, chemical, and municipal water supply, pipeline systems are widely used to transport liquid or gaseous media. However, during long-term use, pipelines may undergo varying degrees of deformation due to factors such as geological activity, external forces, temperature changes, and the aging of the pipeline itself, resulting in phenomena such as bending, collapsing, bulging, and breakage.

[0003] If these deformations are not detected and addressed in a timely manner, they may affect the safety and service life of pipelines, and even lead to serious accidents such as leaks and explosions. Therefore, accurate and real-time detection of pipeline deformation has significant engineering value and safety implications.

[0004] Currently, the main methods used for pipeline deformation detection include the bore diameter detector method, ultrasonic testing, and in-pipe imaging. Among these, the bore diameter detector method has low accuracy, slow detection speed, and is affected by its own power supply lifespan, and also places high demands on the propulsion system. The ultrasonic method is limited by the probe diameter, resulting in low accuracy for detecting minute deformations. The in-pipe imaging method requires a light source, which is not suitable for long-distance and automated inspection inside pipelines. Furthermore, all of these methods are designed for inspecting the inner surface of pipelines and are not applicable to inspecting the outer surface.

[0005] Therefore, how to provide a pipeline deformation detection device that can detect pipeline outer surface deformation with high precision has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a pipeline deformation detection device that, with the help of the high-precision ranging function of a laser sensor, can periodically monitor the deformation of pipelines, thereby significantly reducing the possibility of major safety accidents caused by pipeline deformation.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A pipe deformation detection device includes: a laser sensor, and a laser sensor driving and signal processing device connected to the laser sensor;

[0009] The laser sensor is used to convert electrical signals into laser signals and emit them onto the surface of the pipe. It is also used to convert the laser signals reflected from the surface of the pipe into electrical signals and perform subsequent signal processing.

[0010] The laser sensor driving and signal processing device is used to power the laser sensor and process the electrical signals fed back by the laser sensor.

[0011] The laser sensor driving and signal processing device includes: a driving circuit and a signal processing circuit connected to the laser sensor, wherein the driving circuit is connected to a processor, and the processor is connected to the signal processing circuit; the processor is connected to a communication module, and the communication module is connected to a tablet computer.

[0012] The driving circuit is used to generate a stable electrical signal for the laser sensor in order to generate a stable laser.

[0013] The signal processing circuit is used to amplify and filter the electrical signal output by the laser sensor;

[0014] The processor is used to control the various modules mounted on the processor to perform their corresponding functions;

[0015] The communication module is used to transmit the data measured by the laser sensor to the tablet computer for post-processing of the data.

[0016] The tablet computer is used to install software and control the data measurement of the laser sensor through the communication module, as well as to process the data of the laser sensor through the software.

[0017] In practical applications, the laser sensor is mounted on the outer wall of the pipe via a sensor bracket, and the sensor bracket is generally circular in shape.

[0018] The sensor bracket has multiple equally spaced circular holes along its circumference. Some of these holes are used to install fixing bolts to fix the sensor bracket to the outer surface of the pipe. Other holes are sensor placement slots for mounting and fixing the laser sensor.

[0019] The sensor bracket has sensor fixing knobs on its side wall located at the sensor placement slot, and each laser sensor is fixed by two sensor fixing knobs on the side wall.

[0020] Specifically, the fixing bolt is installed in the circular hole of the sensor bracket, and tightening the fixing bolt can stably mount the sensor bracket on the outer surface of the pipe.

[0021] Furthermore, the sensor bracket has eight circular holes, four of which are used to install the fixing bolts, and the other four are sensor placement slots.

[0022] Furthermore, the inner diameter of the sensor bracket is slightly larger than the outer diameter of the pipe.

[0023] Furthermore, the software interface of the tablet computer is divided into three areas: the first area displays the distance data from the pipe surface measured by each of the laser sensors; the second area displays the change value of the laser sensor measurement data compared with the previous measurement data; and the third area displays the software buttons, including: an on / off button, a data analysis button, a data save button, and a measurement button.

[0024] The on / off button controls the software's on / off state, the data analysis button is used to analyze and compare the data with the previous data, the data save button is used to save the current data, and the measurement button is used to control the laser sensor to measure data.

[0025] A method for detecting pipeline deformation, using the pipeline deformation detection device described in any one of the above claims, includes the following steps:

[0026] Select an adjustable sensor bracket based on the pipe diameter;

[0027] Secure the sensor bracket to the outer wall of the pipe using fixing bolts;

[0028] Use the sensor fixing knob to fix the laser sensor on the sensor bracket;

[0029] Adjust the position of the laser sensor so that it is aligned with the axis of the pipe;

[0030] Laser sensor measurement data;

[0031] Data processing and report generation;

[0032] Specifically, let the distance data measured by the laser sensors in each direction be x1, x2, x3, and x4, respectively.

[0033] For a brand new pipeline, it should be assumed that the pipeline does not deform. At this time, by adjusting the fixing bolts and the sensor fixing knob, x1=x2=x3=x4.

[0034] After the measurement is completed, there is no need to disassemble the device. Periodically measure the data on these four laser sensors. The minimum value among these four values ​​is the angle of the pipe's largest indentation, and the maximum value is the angle of the pipe's largest protrusion.

[0035] In addition, by comparing the data with the previous data and calculating the difference, the changes in the four directions are obtained. These four changing values ​​are the deformation values ​​of the pipeline.

[0036] Compared with existing technologies, the pipeline deformation detection device of this utility model has the following advantages:

[0037] The pipeline deformation detection device provided by this utility model utilizes the high-precision ranging function of a laser sensor to periodically monitor the deformation status of the pipeline, thereby significantly reducing the possibility of major safety accidents caused by pipeline deformation. Attached Figure Description

[0038] Figure 1 A schematic diagram of the structure of the pipeline deformation detection device provided in this embodiment of the utility model;

[0039] Figure 2 A schematic diagram of the frame structure of the laser sensor driving and signal processing device in the pipeline deformation detection device provided in this embodiment of the utility model;

[0040] Figure 3 A schematic diagram of the software interface of the tablet computer in the pipeline deformation detection device provided in this embodiment of the utility model;

[0041] Figure 4 A schematic flowchart of the pipeline deformation detection method provided in this embodiment of the utility model.

[0042] Figure label:

[0043] 1-Laser sensor; 2-Sensor bracket; 3-Fixing bolt; 4-Sensor fixing knob; 5-Laser sensor driver and signal processing device; 6-Pipeline;

[0044] 51-Driver circuit; 52-Signal processing circuit; 53-Processor; 54-Communication module; 55-Tablet PC; 551-First area; 552-Second area; 553-Third area. Detailed Implementation

[0045] For ease of understanding, the pipeline deformation detection device provided in the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0046] This utility model embodiment provides a pipeline deformation detection device, such as Figures 1-2 As shown, it includes: a laser sensor 1, and a laser sensor driver and signal processing device 5 connected to the laser sensor 1;

[0047] Laser sensor 1 is used to convert electrical signals into laser signals and emit them onto the surface of the pipe. It is also used to convert the laser signals reflected from the surface of the pipe into electrical signals and perform subsequent signal processing.

[0048] The laser sensor driving and signal processing device 5 is used to power the laser sensor 1 and to process the electrical signals fed back by the laser sensor 1.

[0049] The laser sensor driving and signal processing device 5 includes: a driving circuit 51 and a signal processing circuit 52 connected to the laser sensor 1, and the driving circuit 51 is connected to a processor 53, which is connected to the signal processing circuit 52; the processor 53 is connected to a communication module 54, and the communication module 54 is connected to a tablet computer 55.

[0050] The driving circuit 51 is used to generate a stable electrical signal for the laser sensor 1 in order to generate a stable laser.

[0051] The signal processing circuit 52 is used to amplify and filter the electrical signal output by the laser sensor 1;

[0052] Processor 53 is used to control the various modules mounted on the processor to perform their corresponding functions;

[0053] The communication module 54 is used to transmit the data measured by the laser sensor 1 to the tablet computer 55 for post-processing of the data;

[0054] The tablet computer 55 is used to install software and control the data measurement of the laser sensor 1 through the communication module 54, as well as to process the data of the laser sensor 1 through the software.

[0055] Compared with the prior art, the pipeline deformation detection device described in this embodiment of the utility model has the following advantages:

[0056] The pipeline deformation detection device provided in this embodiment of the invention utilizes the high-precision ranging function of a laser sensor to periodically monitor the deformation status of the pipeline, thereby significantly reducing the possibility of major safety accidents caused by pipeline deformation.

[0057] In practical applications, such as Figure 1 As shown, the laser sensor 1 can be mounted on the outer wall of the pipe 6 via the sensor bracket 2, and the sensor bracket 2 can be in the shape of a ring.

[0058] The sensor bracket 2 may have multiple equally spaced circular holes along its circumference. Some of these holes can be used to install fixing bolts 3 so that the sensor bracket 2 can be fixed to the outer surface of the pipe 6. Other holes can be used as sensor placement slots for mounting and fixing the laser sensor 1.

[0059] Among them, such as Figure 1 As shown, sensor fixing knobs 4 can be provided on the side wall of the sensor bracket 2 located at the sensor placement slot. Each laser sensor 1 is fixed by two sensor fixing knobs 4 on the side wall.

[0060] Specifically, such as Figure 1As shown, the aforementioned fixing bolt 3 can be installed in the round hole of the sensor bracket 2. Tightening the fixing bolt 3 can stably mount the sensor bracket 2 on the outer surface of the pipe 6.

[0061] Furthermore, such as Figure 1 As shown, the sensor bracket 2 may have eight circular holes, four of which can be used to install fixing bolts 3, and the other four of which can be sensor placement slots.

[0062] Furthermore, such as Figure 1 As shown, the inner diameter of the sensor bracket 2 can preferably be slightly larger than the outer diameter of the pipe 6.

[0063] Furthermore, such as Figure 3 As shown, the software interface of the tablet computer 55 can be divided into three areas. The first area 551 can be the data of the distance from the surface of the pipe 6 measured by each laser sensor 1. The second area 552 can be the change value of the measurement data of the laser sensor 1 compared with the previous measurement data. The third area 553 can be the software buttons, and the buttons can include: power button, data analysis button, data save button, and measurement button.

[0064] The on / off button can be used to control the software's on / off state, the data analysis button can be used to analyze and compare with the previous data, the data save button can be used to save the current data, and the measurement button can be used to control the laser sensor 1 to measure data.

[0065] This utility model embodiment further provides a method for detecting pipeline deformation, using any of the pipeline deformation detection devices described above, such as... Figure 4 As shown, it may include the following steps:

[0066] Select an adjustable sensor bracket based on the pipe diameter;

[0067] Secure the sensor bracket to the outer wall of the pipe using fixing bolts;

[0068] Use the sensor fixing knob to fix the laser sensor on the sensor bracket;

[0069] Adjust the position of the laser sensor so that it is aligned with the axis of the pipe;

[0070] Laser sensor measurement data;

[0071] Data processing and report generation;

[0072] Specifically, let the distance data measured by the laser sensors in each direction be x1, x2, x3, and x4, respectively.

[0073] For a brand new pipeline, it should be assumed that the pipeline does not deform. At this time, by adjusting the fixing bolts and the sensor fixing knob, x1=x2=x3=x4.

[0074] After the measurement is completed, there is no need to disassemble the device. Periodically measure the data on these four laser sensors. The minimum value among these four values ​​is the angle of the pipe's largest indentation, and the maximum value is the angle of the pipe's largest protrusion.

[0075] In addition, by comparing the data with the previous data and calculating the difference, the changes in the four directions are obtained. These four changing values ​​are the deformation values ​​of the pipeline.

[0076] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A pipe deformation detection device, characterized in that, include: A laser sensor, and a laser sensor driver and signal processing device connected to the laser sensor; The laser sensor is used to convert electrical signals into laser signals and emit them onto the surface of the pipe. It is also used to convert the laser signals reflected from the surface of the pipe into electrical signals and perform subsequent signal processing. The laser sensor driving and signal processing device is used to power the laser sensor and process the electrical signals fed back by the laser sensor. The laser sensor driving and signal processing device includes: a driving circuit and a signal processing circuit connected to the laser sensor, wherein the driving circuit is connected to a processor, and the processor is connected to the signal processing circuit; the processor is connected to a communication module, and the communication module is connected to a tablet computer. The driving circuit is used to generate a stable electrical signal for the laser sensor in order to generate a stable laser. The signal processing circuit is used to amplify and filter the electrical signal output by the laser sensor; The processor is used to control the various modules mounted on the processor to perform their corresponding functions; The communication module is used to transmit the data measured by the laser sensor to the tablet computer for post-processing of the data. The tablet computer is used to install software and control the data measurement of the laser sensor through the communication module, as well as to process the data of the laser sensor through the software.

2. The pipeline deformation detection device according to claim 1, characterized in that, The laser sensor is mounted on the outer wall of the pipe via a sensor bracket, and the sensor bracket is generally circular in shape. The sensor bracket has multiple equally spaced circular holes along its circumference. Some of these holes are used to install fixing bolts to fix the sensor bracket to the outer surface of the pipe. Other holes are sensor placement slots for mounting and fixing the laser sensor.

3. The pipeline deformation detection device according to claim 2, characterized in that, The sensor bracket has sensor fixing knobs on its side wall and located at the sensor placement slot. Each laser sensor is fixed by two sensor fixing knobs on the side wall.

4. The pipeline deformation detection device according to claim 2, characterized in that, The fixing bolt is installed in the circular hole of the sensor bracket. Tightening the fixing bolt can stably mount the sensor bracket on the outer surface of the pipe.

5. The pipeline deformation detection device according to claim 2, characterized in that, The sensor bracket has eight circular holes, four of which are used to install the fixing bolts, and the other four are sensor placement slots.

6. The pipeline deformation detection device according to claim 2, characterized in that, The inner diameter of the sensor bracket is slightly larger than the outer diameter of the pipe.

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