Gas pipeline evaluation device with automatic detection function

By synchronously detecting methane, ethane, and hydrogen and combining AI vision and lidar, the gas pipeline evaluation device is solved, and efficient and accurate gas pipeline inspection is achieved.

CN223271052UActive Publication Date: 2025-08-26BEIJING GAS GRP
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422210560.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-10
Publication Date
2025-08-26
Estimated Expiration
2034-09-10

AI Technical Summary

Technical Problem

The existing gas inspection technology has problems such as low inspection quality, high labor intensity, high safety risks, difficulty in entering complex environments of testing equipment and insufficient detection accuracy, especially in hydrogen-doped gas environments, dilution of ethane proportion has increased the difficulty of detection.

Method used

Synchronous detection of methane, ethane and hydrogen is adopted, combined with AI intelligent visual perception technology and lidar, to realize independent planning of inspection routes, use high-definition video cameras to identify abnormalities, and assist inspection through Beidou positioning equipment to reduce false alarm rates and improve detection accuracy.

Benefits of technology

It has achieved efficient and safe gas pipeline inspection in harsh environments, reduced false alarm rate, improved detection accuracy and inspection coverage rate, reduced manual review workload, and ensured inspection quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223271052U_ABST
    Figure CN223271052U_ABST
Patent Text Reader

Abstract

The utility model discloses a gas pipeline evaluation device capable of automatic detection, which comprises a gas detector, the front side of the gas detector is provided with an illuminating lamp, the left side and the right side of the gas detector are symmetrically provided with two groups of side protection clamping plates, and the front end and the rear end in each group of side protection clamping plates are respectively provided with a group of range finders; an alarm apparatus is movably installed on the upper portion of the gas detector, an AI intelligent sensing module is movably installed at the top end of the alarm apparatus, and a high-definition video camera is electrically connected and installed on the front side of the AI intelligent sensing module. According to the system, methane, ethane and hydrogen are synchronously detected, methane leakage or gas leakage in the environment can be more accurately distinguished, the false alarm rate of equipment is reduced to the maximum extent, the workload of manual rechecking is reduced, the rechecking efficiency is improved, meanwhile, the AI intelligent visual perception technology is adopted, and image data collected by a high-definition video camera can be compared with the prior art. The information is timely fed back to background workers, and third-party damage is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline assessment, in particular to a gas pipeline assessment device capable of automatic detection. Background Art

[0002] Production safety is a core component of gas companies' entire production and operations management process. Improving inspection efficiency and coverage while ensuring personnel safety is paramount in daily operations and maintenance. Currently, gas inspections within urban communities and gas plants primarily rely on handheld or vehicle-mounted detection equipment to check for leaks or equipment anomalies. While these methods are numerous, most have drawbacks. For example, manual inspections suffer from low quality, limited methods, high labor intensity, significant exposure to inclement weather, difficulty in identifying abnormal targets, and potential safety risks. Furthermore, inspection quality varies due to varying personnel qualifications. Community environments differ from typical environments. Gas pipelines are laid in complex locations, covering large areas, and are located close to buildings. This makes it difficult for handheld detection equipment or vehicles to access and effectively inspect hidden leaks or hazardous areas.

[0003] At the same time, with the rapid development of the hydrogen energy industry, blending hydrogen into natural gas at a certain ratio and then transporting it via natural gas pipelines has become an effective way to achieve large-scale hydrogen transportation. Currently, urban gas pipeline leak detection mostly focuses on methane, with some on-board detection equipment also detecting ethane to distinguish between other methane emission sources in the city, such as manholes, rivers, gas stations, and motor vehicles. However, with the progress of cleaner urban gas, more and more biomass gas and hydrogen are being added to gas pipelines, which will greatly dilute the proportion of ethane in the gas. Therefore, new gas detection technologies are urgently needed to improve detection accuracy.

[0004] To sum up, this patent proposes an automatic inspection device for hydrogen blending plants or residential areas, which can replace or assist personnel in working in extremely dangerous environments, reduce the labor intensity of inspectors, ensure stable and efficient inspection quality in harsh environments, significantly reduce safety risks, and ensure the safety of inspectors. Therefore, there is a need for a gas pipeline evaluation device that can automatically detect. Utility Model Content

[0005] The purpose of this utility model is to provide a gas pipeline evaluation device that can automatically detect, realize autonomous planning of inspection routes through cooperation between various positioning components, use algorithm assistance through the internal processing chip of the gas detector to reduce false alarm interference sources, and use AI intelligent visual perception technology to autonomously identify abnormal problems found during inspections to solve the technical problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a gas pipeline assessment device capable of automatic detection, comprising a gas detector, a lighting lamp provided on the front side of the gas detector, two sets of side protection plywood symmetrically installed on the left and right sides of the gas detector, and a set of rangefinders installed at the front and rear ends of each set of side protection plywood;

[0007] An alarm is movably installed on the upper part of the gas detector, an AI intelligent sensing module is movably installed on the top of the alarm, and a high-definition video camera is electrically connected to the front side of the AI ​​intelligent sensing module;

[0008] The bottom of the gas detector is snap-fitted with a mounting base, a battery module is snap-fitted inside the base, the battery module is electrically connected to the gas detector, and a laser radar is movably mounted on the lower part of the base.

[0009] Preferably, air intake ports are symmetrically provided on the left and right sides of the gas detector, and a positioning device is bolted and installed on the upper surface of the gas detector.

[0010] Preferably, a mounting seat is bolted to the upper surface of the gas detector at the rear side of the locator, a slide groove is provided inside the mounting seat, and two sets of limit seats are symmetrically installed on both sides of the slide groove inside the mounting seat.

[0011] Preferably, a movable seat is slidably installed inside the mounting seat at the corresponding slide groove position, the left and right sides of the movable seat are inserted into the limit seat for sliding installation, a rotating control seat is rotatably installed on the top of the movable seat, and the alarm instrument is bolted to the upper surface of the rotating control seat.

[0012] Preferably, a corrugated connecting pipe is provided at the bottom of the movable seat, and the corrugated connecting pipe passes through the slide groove and extends into the interior of the gas detector, and the connecting wire of the rotating control seat is electrically connected to the internal processing chip of the gas detector.

[0013] Preferably, an angle control frame is electrically connected and installed on the outer side of the rotation control seat, a support seat is installed on the top of the angle control frame, and the AI ​​intelligent sensing module is bolted and installed on the top of the support seat.

[0014] Preferably, four groups of limit buckles are symmetrically arranged on the left and right sides of the base, and the limit buckles are movably connected to the gas detector. A protective seat is installed at the bottom of the base, and two groups of control legs are installed in the front and back of the protective seat respectively, and a movable wheel is provided on the outside of each group of control legs.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This patent adopts the simultaneous detection of methyl ethane, ethyl ethane and hydrogen, which can more accurately distinguish whether it is a biogas leak or a natural gas leak in the environment, minimize the false alarm rate of the equipment, reduce the workload of manual review and improve the review efficiency.

[0017] 2. This patent uses AI intelligent visual perception technology, which can accurately identify anomalies such as landforms, construction signs, and third-party dangerous operations through repeated training of image data collected by high-definition video cameras, and provide timely feedback to back-end staff to avoid third-party sabotage.

[0018] 3. This patent uses laser radar, Beidou and other positioning facilities, which can realize autonomous planning of inspection routes based on road network and pipeline network information, ensuring that the inspection equipment can be as close to the pipeline network as possible and improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the base of the utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure of the gas detector of the utility model;

[0023] Figure 5 This is a schematic diagram of the installation structure of the AI ​​intelligent perception module of this utility model.

[0024] In the figure: 1. Gas detector; 2. Air intake; 3. Light; 4. Positioner; 5. Mounting seat; 6. Slide; 7. Limit seat; 8. Side protection splint; 9. Rangefinder; 10. Moving seat; 11. Corrugated connecting pipe; 12. Rotation control seat; 13. Alarm; 14. Angle control frame; 15. Support seat; 16. AI intelligent sensing module; 17. High-definition video camera; 18. Base; 19. Battery module; 20. Limit buckle; 21. Protection seat; 22. LiDAR; 23. Control leg; 24. Moving wheel. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figure 1-Figure 5 As shown, the utility model provides a gas pipeline evaluation device that can automatically detect, including a gas detector 1, a lighting lamp 3 is arranged on the front side of the gas detector 1, two groups of side protection splints 8 are symmetrically installed on the left and right sides of the gas detector 1, and a group of rangefinders 9 are respectively installed at the front and rear ends of each group of side protection splints 8. The device comprehensively selects the inspection route according to the pre-designed inspection area, the equipment combines the road network map and the gas pipeline network map, and gives priority to detection above the pipeline when there are no obstacles around. At the same time, whether to turn on the lighting lamp 3 is selected according to the detection at night or during the day.

[0027] An alarm device 13 is movably installed on the upper part of the gas detector 1, an AI intelligent sensing module 16 is movably installed on the top of the alarm device 13, and a high-definition video camera 17 is electrically connected and installed on the front side of the AI ​​intelligent sensing module 16.

[0028] The bottom of the gas detector 1 is snap-fitted with a mounting base 18, and a battery module 19 is snap-fitted inside the base 18. The battery module 19 is electrically connected to the gas detector 1. A laser radar 22 is movably installed at the bottom of the base 18. During the inspection process, the laser radar 22, the rangefinder 9 and the high-definition video camera 17 are turned on in real time. On the one hand, they monitor the equipment body to avoid accidents such as collisions and falls; on the other hand, they monitor the surrounding environment above the pipeline network and use the AI ​​intelligent perception module 16 to analyze whether there are any third-party dangerous operations such as construction and illegal occupation. When there is an abnormality, the background alarm feedback is given, and the high-definition video camera 17 can adjust the monitoring height and monitoring angle through the angle control frame 14 and the support seat 15.

[0029] The gas detector 1 has air inlets 2 symmetrically provided on the left and right sides, and a locator 4 is bolted onto the upper surface of the gas detector 1. During the inspection process, the gas detector 1 is turned on in real time, and the gas is pumped into the gas detector 1 through the air inlet 2. When the methane gas content exceeds 5000ppm, the ethane and hydrogen detectors are automatically turned on to analyze whether the gas contains ethane or hydrogen content.

[0030] The upper surface of the gas detector 1 is bolted with a mounting seat 5 on the rear side of the locator 4, and a slide groove 6 is opened inside the mounting seat 5. Two sets of limit seats 7 are symmetrically installed on both sides of the slide groove 6 inside the mounting seat 5. The locator 4 is a Beidou positioning device, which can cooperate with the laser radar 22 to realize autonomous planning of the inspection route. At the same time, it can better enable the staff to capture the device and monitor the position of the device in real time. The installed mounting seat 5 and the limit seat 7 set inside the mounting seat 5 limit the mobile seat 10, and the movement of the mobile seat 10 is controlled by the internal driving structure of the mobile seat 10, so that the alarm 13, AI intelligent perception module 16 and high-definition video camera 17 on the upper part of the mobile seat 10 can be more flexibly moved and used.

[0031] A moving seat 10 is slidably installed in the position of the slide groove 6 inside the mounting seat 5, and the left and right sides of the moving seat 10 are inserted into the limit seat 7 for sliding installation. A rotating control seat 12 is rotatably installed on the top of the moving seat 10, and the alarm instrument 13 is bolted and installed on the upper surface of the rotating control seat 12. The rotating rotating control seat 12 can control the use angle of the alarm instrument 13, the AI ​​intelligent sensing module 16, and the high-definition video camera 17. The cooperation of the AI ​​intelligent sensing module 16 and the high-definition video camera 17 is used to autonomously identify abnormal problems found during the inspection, thereby simulating the surrounding environment to further control the walking path of the device.

[0032] A corrugated connecting tube 11 is provided at the bottom of the movable seat 10. The corrugated connecting tube 11 passes through the slide groove 6 and extends into the interior of the gas detector 1, and the rotating control seat 12 connects the connecting wire to the internal processing chip of the gas detector 1 and is electrically connected. The corrugated connecting tube 11 provided at the bottom of the movable seat 10 facilitates the movement of the movable seat 10 to protect the circuit. After the internal wire of the corrugated connecting tube 11 is connected to the internal chip of the gas detector 1, the algorithm of the gas detector 1 can be used to assist in reducing the false alarm interference source and improve the stability of the use of the alarm 13.

[0033] An angle control frame 14 is electrically connected to the outside of the rotation control seat 12, a support seat 15 is installed on the top of the angle control frame 14, and an AI intelligent sensing module 16 is bolted to the top of the support seat 15. The angle control frame 14 and the support seat 15 can independently control the use angle of the AI ​​intelligent sensing module 16 to better capture the surrounding environment information, making the device safer during use.

[0034] Four groups of limit buckles 20 are symmetrically arranged on the left and right sides of the base 18. The limit buckles 20 are movably connected to the gas detector 1. A protective seat 21 is installed at the bottom of the base 18. Two groups of control legs 23 are installed in front and behind the protective seat 21, and a moving wheel 24 is arranged on the outside of each group of control legs 23. The battery module 19 installed inside the base 18 provides working power for the device. Since the base 18 as a whole is inserted into the lower part of the gas detector 1 through the limit buckles 20, the base 18 and the battery module 19 are easier to be removed and replaced. At the same time, the protective seat 21 is provided to protect the laser radar 22, so that the laser radar 22 is not easily damaged during use, and the cooperation between the laser radar 22 and the locator 4 is more stable and accurate. The control legs 23 and the moving wheels 24 are controlled to move, making the overall movement of the device more convenient.

[0035] In addition, when the ethane or hydrogen content in the gas exceeds 100ppm and is analyzed by the algorithm as a non-biogas source, the point will be recorded and feedback will be given, and the next time the point is tested, it will be tested again. When the point has an alarm for more than three times, the point will be recorded as a point to be manually reviewed, and the feedback will be given to the background record to start the manual review procedure. When the methane content in the environment exceeds 5%vol and the ethane or hydrogen content is greater than 1000ppm, the 6-alarm device will automatically turn on on site with a flashing yellow light, and the background will give feedback and start manual review immediately. During the inspection process, the equipment operating status will be monitored in real time. When the battery module 19 is less than 20%, or when the main detection modules such as the gas detector 1 and the high-definition video camera 17 fail, the feedback will be recorded in the background, and the inspection data will be uploaded and the inspection task will be ended early and returned to the base.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas pipeline assessment device capable of automatic detection, characterized by: The gas detector (1) comprises a gas detector (1), wherein a lighting lamp (3) is provided on the front side of the gas detector (1), two sets of side protection splints (8) are symmetrically installed on the left and right sides of the gas detector (1), and a set of rangefinders (9) are respectively installed at the front and rear ends of each set of side protection splints (8); An alarm device (13) is movably mounted on the upper portion of the gas detector (1), an AI intelligent sensing module (16) is movably mounted on the top of the alarm device (13), and a high-definition video camera (17) is electrically connected to the front side of the AI ​​intelligent sensing module (16); The bottom of the gas detector (1) is snap-fitted with a mounting base (18), a battery module (19) is snap-fitted inside the base (18), the battery module (19) is electrically connected to the gas detector (1), and a laser radar (22) is movably mounted on the lower part of the base (18).

2. The automatic detection gas pipeline assessment device according to claim 1, characterized in that: The gas detector (1) is symmetrically provided with air intake ports (2) on the left and right sides, and a positioning device (4) is bolted and installed on the upper surface of the gas detector (1).

3. The automatic detection gas pipeline assessment device according to claim 2, characterized in that: The upper surface of the gas detector (1) is bolted to a mounting seat (5) at the rear side of the positioning instrument (4), a sliding groove (6) is provided inside the mounting seat (5), and two groups of limit seats (7) are symmetrically installed on both sides of the sliding groove (6) inside the mounting seat (5).

4. The automatic detection gas pipeline assessment device according to claim 3, characterized in that: A movable seat (10) is slidably mounted in the interior of the mounting seat (5) corresponding to the position of the slide groove (6); the left and right sides of the movable seat (10) are snapped into the interior of the limit seat (7) for slidable mounting; a rotation control seat (12) is rotatably mounted on the top of the movable seat (10); and the alarm instrument (13) is bolted and mounted on the upper surface of the rotation control seat (12).

5. The automatic detection gas pipeline assessment device according to claim 4, characterized in that: A corrugated connecting pipe (11) is provided at the bottom of the movable seat (10), and the corrugated connecting pipe (11) passes through the slide groove (6) and extends into the interior of the gas detector (1), and the rotating control seat (12) is connected to the wire electrically connected to the internal processing chip of the gas detector (1).

6. The automatic detection gas pipeline assessment device according to claim 5, characterized in that: An angle control frame (14) is electrically connected and installed on the outside of the rotation control seat (12), a support seat (15) is installed on the top of the angle control frame (14), and the AI ​​intelligent sensing module (16) is bolted and installed on the top of the support seat (15).

7. The automatic detection gas pipeline assessment device according to claim 6, characterized in that: Four groups of limit buckles (20) are symmetrically arranged on the left and right sides of the base (18), and the limit buckles (20) are movably connected to the gas detector (1). A protective seat (21) is installed at the bottom of the base (18), and two groups of control legs (23) are installed at the front and back of the protective seat (21), and a moving wheel (24) is installed on the outside of each group of control legs (23).