CN-121995436-A - Nonmetallic pipeline detection positioning device, method and system

Abstract

The invention discloses a nonmetallic pipeline detection positioning device, a method and a system, wherein the positioning device integrates a sound generating device, a pickup, a main controller and the like through a detection box body, an operator can carry only one detection box body to detect the nonmetallic pipeline. The sound generating device and the pickup are matched to be used, and the position of the nonmetallic pipeline can be accurately determined by emitting sound with specific frequency and receiving echoes of the sound after the sound is transmitted in the nonmetallic pipeline. The display device is arranged on the detection box body and can display the position information of the nonmetallic pipeline in real time. The main controller accurately analyzes and processes the sound signal sent by the sound generating device and the echo signal received by the pickup, and extracts the specific signal related to the nonmetallic pipeline so as to improve the detection accuracy.

Inventors

• YU YOUJUN
• TAO JIAN
• XIA MINGMING
• GE HAILONG
• PAN CHENG
• HUANG QIANG
• LI JIA

Assignees

• 中国石油天然气股份有限公司

Dates

Publication Date

20260508

Application Date

20241108

Claims (10)

1. 1. The nonmetal pipeline detection positioning device is characterized by comprising a detection box body (1) and a main controller, wherein a sound generating device (2) and a pickup (3) are arranged in the detection box body (1), a display device (6) for acquiring the position of a nonmetal pipeline is arranged on the detection box body (1), and the sound generating device (2), the pickup (3) and the display device (6) are all connected with the main controller.
2. 2. Nonmetallic pipeline detection and positioning device according to claim 1, characterized in that a moving device is arranged below the detection box (1).
3. 3. The nonmetallic pipeline detection and positioning device according to claim 2, characterized in that the moving device comprises a plurality of connecting rods (4) and a plurality of rollers (7); The side faces of the detection box body (1) are provided with the connecting rods (4), and the rollers (7) are movably connected to the bottoms of the connecting rods (4).
4. 4. Nonmetallic pipeline detection positioning device according to claim 1, characterized in that a hand-held rod (5) is arranged above the detection box (1).
5. 5. Nonmetallic pipeline detection and positioning device according to claim 4, characterized in that a pinching handle (8) is connected to the hand-held rod (5).
6. 6. Nonmetallic pipeline detection positioning device according to claim 1, characterized in that a buffer sound insulation strip (9) is provided on the detection box (1).
7. 7. The nonmetallic pipeline detection and positioning device according to claim 6, characterized in that the buffering sound insulation strip (9) is arranged on the side surface of the detection box body (1).
8. 8. The nonmetallic pipeline detection positioning device according to claim 1, wherein the plurality of sound pickups (3) are uniformly distributed at the bottom in the detection box body (1).
9. 9. A nonmetallic pipeline detection and positioning method, characterized in that the nonmetallic pipeline detection and positioning device according to any one of claims 1-8 is adopted, comprising: Acquiring pipeline data, and constructing an echo analysis model of a nonmetallic pipeline based on the pipeline data; transmitting detection sound waves to a detection area through a sound generating device (2) in the detection box body (1), and collecting echo sound waves of the detection area through a pickup (3) in the detection box body (1); And inputting the echo sound wave into an echo analysis model of the nonmetallic pipeline to obtain a nonmetallic pipeline detection result, and detecting the nonmetallic pipeline based on the nonmetallic pipeline detection result combined with a main controller and a display device (6).
10. 10. A nonmetallic pipeline detection and positioning system, characterized in that the nonmetallic pipeline detection and positioning method as claimed in claim 9 is adopted, and comprises the following steps: the model construction module is used for acquiring pipeline data and constructing an echo analysis model of the nonmetallic pipeline based on the pipeline data; The data acquisition module is used for sending detection sound waves to a detection area through a sound generation device (2) in the detection box body (1) and collecting echo sound waves of the detection area through a sound pickup (3) in the detection box body (1); the data processing module is used for inputting echo sound waves into an echo analysis model of the nonmetallic pipeline to obtain a nonmetallic pipeline detection result, and nonmetallic pipeline detection is realized based on the nonmetallic pipeline detection result combined with the main controller and the display device (6).

Description

Nonmetallic pipeline detection positioning device, method and system Technical Field The invention belongs to the technical field of pipeline detection, and relates to a nonmetallic pipeline detection positioning device, method and system. Background Buried pipelines play a vital role in the infrastructure construction of modern cities. However, the existing buried pipeline detection technology faces a plurality of difficulties in the detection of nonmetallic pipelines. The traditional buried pipeline detection technology mainly aims at detecting a metal pipeline. The principle is that the conductivity of the metal pipeline is utilized, an electromagnetic signal is given to the metal pipeline through a signal transmitter, then the metal pipeline is detected along the metal pipeline through a receiver, and the metal pipeline is detected and positioned according to the strength of the received electromagnetic signal. The method has been widely used in the detection of metal pipes and has high accuracy and reliability. However, these electromagnetic induction type detection methods and magnetic methods lose their effectiveness when facing nonmetallic pipelines. For example, the main wire-bonding detection methods such as a direct connection method, a clamp method, an active source induction method, a passive source search method, a magnetic field intensity method, a magnetic gradient method and the like cannot play a role on nonmetallic pipelines. This is because the non-metallic pipeline does not have the ability to conduct electricity and magnetism and cannot interact with electromagnetic signals. Under the prior art condition, in order to mark the position of a nonmetallic pipeline, detection is usually carried out mainly by investigation and assisted by a concise method of opening inspection well observation and the like. Although this method can determine the location of nonmetallic pipelines to some extent, it has significant limitations. First, the investigation method requires a lot of manpower and time, and accuracy is also difficult to ensure. Secondly, the method for opening inspection well observation can only be suitable for nonmetallic pipelines with inspection wells, and can not be used for detecting nonmetallic pipelines with large buried depths and without inspection wells. In addition, in order to solve the detection problem of the nonmetallic pipeline, a method for arranging a metal tracing line above the nonmetallic pipeline is adopted at present, so that the pipeline position is conveniently determined by adopting an electromagnetic technology. However, this method also has some problems. First, the tracer line needs to be buried in the ground at the time of pipeline laying, which undoubtedly increases the cost and construction period of pipeline laying. Secondly, the trace is thinner, is easily influenced by external factors, such as extrusion and corrosion of soil, and the trace effect is difficult to ensure. In addition, for some already laid nonmetallic pipelines, it becomes impractical to re-embed the tracer line. In order to solve the difficult problem of nonmetallic pipeline detection, researchers have been struggling to explore new technologies and methods. Currently, some emerging detection technologies are gradually rising, such as a geological radar method, an ultrasonic method, an infrared method and the like. Although these techniques can detect nonmetallic pipelines to some extent, there are still some problems. For example, the geological radar method requires arranging transmitting and receiving antennas on the ground, has poor detection effect on a nonmetal pipeline with large burial depth, the ultrasonic method requires injecting liquid or gas into the pipeline as a propagation medium, and cannot be used on nonmetal pipelines which cannot be injected with the medium, and the infrared method is greatly influenced by the ambient temperature, and the accuracy of detection results can be influenced under the condition of large temperature change. Disclosure of Invention The invention aims to solve the problems that in the prior art, when a trace line is difficult to lay, the trace effect is difficult to ensure and the nonmetallic pipeline cannot be accurately detected and positioned, and provides a nonmetallic pipeline detection and positioning device and method. In order to achieve the purpose, the invention is realized by adopting the following technical scheme: The invention provides a nonmetal pipeline detection positioning device which comprises a detection box body and a main controller, wherein a sound generating device and a sound pickup are arranged in the detection box body, a display device for acquiring the position of a nonmetal pipeline is arranged on the detection box body, and the sound generating device, the sound pickup and the display device are all connected with the main controller. Preferably, a moving device is arranged below the detection box body. Pre