Natural gas pipeline leakage detection device
By designing a natural gas pipeline leak detection device that includes an arc plate, clamps, and rollers, the problem of full coverage for long-distance pipeline inspection was solved, achieving efficient natural gas pipeline leak detection and reducing installation and maintenance costs.
Patent Information
- Application Number
- CN202520360038.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Existing methods for detecting leaks in natural gas pipelines are difficult to achieve full coverage over long distances, especially in complex terrain or urban areas. Installation and maintenance costs are high, and regular manual inspections rely on the experience and attention of staff, making it difficult to guarantee the comprehensiveness and timeliness of detection.
A natural gas pipeline leak detection device was designed, including a detection component and a drive component. Utilizing structures such as arc plates, clamps, drive shafts, and rollers, the detection component is moved on the pipeline by an active roller. Combined with a detection sensor, it achieves full-coverage detection and can be quickly disassembled and installed to cross pipeline support structures.
It achieves full coverage inspection of long-distance natural gas pipelines, reduces the difficulty of installation and disassembly, improves the scope and efficiency of inspection, and solves the problem of movement of inspection components on pipeline support structures.
Smart Images

Figure CN223840189U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of natural gas pipeline leak detection technology, and specifically relates to a natural gas pipeline leak detection device. Background Technology
[0002] Current monitoring capabilities are often limited, especially for long-distance pipelines, where full coverage is difficult to achieve, particularly in complex terrain or urban areas. Installation and maintenance costs are high, and management becomes more challenging. Conventional solutions include combining periodic manual inspections with quantitative monitoring, increasing the number of monitoring sensors, or employing more advanced technologies such as fiber optic sensors or acoustic detection. However, these methods also have limitations. Periodic manual inspections rely on the experience and attentiveness of staff, making it difficult to guarantee comprehensive and timely detection. Furthermore, inspection costs are high when pipelines are long and widely distributed. Therefore, we aim to design a novel natural gas pipeline leak detection device to address this problem. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a natural gas pipeline leak detection device to solve the problems mentioned in the background technology.
[0004] This utility model is achieved through the following technical solution: a natural gas pipeline leak detection device, comprising: a detection component and a driving component, wherein the detection component includes an arc plate one, an arc plate two and a clamp, the arc plate two is fixed to the upper side of the arc plate one by the clamp, and a mounting frame is welded to the front side of the upper end of the arc plate two, and a detection sensor for natural gas pipeline leak detection is installed inside the mounting frame.
[0005] The drive assembly includes a drive shaft, a right-angle drive module, and a drive roller. The front end of the drive shaft is fixedly connected to the rear end of the right-angle drive module, and the lower end of the right-angle drive module is fixed with a drive roller for driving.
[0006] In a preferred embodiment, two sets of mounting seats are installed on the outer wall of the arc plate. Each set of mounting seats is connected by a driven roller rotatably via a bearing. The driven rollers assist the entire detection assembly in moving on the natural gas pipeline, thereby expanding the detection range.
[0007] In a preferred embodiment, a set of clearance holes is provided radially inward on the outer wall of the arc plate, and the structure and size of the clearance holes are matched with the structure and size of the driven roller.
[0008] In a preferred embodiment, the front end of the mounting bracket extends forward to form an arc plate 2, and the detection sensor is a natural gas detection sensor. The detection sensor can be selected from commercially available natural gas leak detection sensors as needed.
[0009] In a preferred embodiment, two sets of mounting seats are respectively provided on the upper right side and the lower left side of the arc plate, and a driven roller is rotatably mounted between each set of mounting seats via a bearing.
[0010] In a preferred embodiment, the drive assembly further includes a drive module, a reducer, and a bracket, with the front end of the drive module fixedly connected to the rear end of the reducer.
[0011] In a preferred embodiment, the reducer is connected to the rear end of the drive shaft, the front end of the reducer is fixedly connected to the upper end of the bracket, and the inner part of the drive roller is embedded inside the second arc plate.
[0012] After adopting the above technical solution, the beneficial effects of this utility model are: by setting a driving component, the active roller and the driven roller of the second arc plate are installed side by side, and the rotating active roller can drive the entire detection component to move on the natural gas pipeline, which enables the detection component to move and detect on a long distance of natural gas pipeline, and helps to improve the detection range of the detection component.
[0013] The detection components are designed to be quickly disassembled and reinstalled, greatly reducing the difficulty of installation and disassembly, and also solving the problem that the detection components cannot pass over the natural gas pipeline support structure for long-distance detection. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall structure of a natural gas pipeline leak detection device according to the present invention.
[0016] Figure 2 This is a side view schematic diagram of the natural gas pipeline leak detection device of this utility model.
[0017] Figure 3 This is a schematic diagram of the drive assembly of a natural gas pipeline leak detection device according to the present invention.
[0018] In the diagram, 100-detection component, 110-arc plate one, 111-driven roller one, 112-mounting base one, 120-arc plate two, 130-clamp, 140-mounting bracket, 150-detection sensor;
[0019] 200-Drive assembly, 210-Drive module, 220-Reducer, 230-Drive shaft, 240-Right angle transmission module, 250-Drive roller, 260-Bracket. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1 to 3 This utility model provides a technical solution: a natural gas pipeline leak detection device, including: a detection component 100 and a drive component 200. The detection component 100 includes an arc plate 110, an arc plate 200 and a clamp 130. The arc plate 200 is fixed to the upper side of the arc plate 110 by the clamp 130. A mounting frame 140 is welded to the front side of the upper end of the arc plate 200. A detection sensor 150 for natural gas pipeline leak detection is installed inside the mounting frame 140.
[0022] The drive assembly 200 includes a drive shaft 230, a right-angle drive module 240, and a drive roller 250. The front end of the drive shaft 230 is fixedly connected to the rear end of the right-angle drive module 240, and the drive roller 250 for driving is fixed at the lower end of the right-angle drive module 240.
[0023] Please see Figures 1 to 2 Two sets of mounting seats 112 are installed on the outer wall of the arc plate 110. Each set of mounting seats 112 is connected by a driven roller 111 through a bearing. The driven roller 111 can assist the entire detection assembly 100 to move on the natural gas pipeline, thereby expanding the detection range.
[0024] A set of clearance holes is provided radially inward on the outer wall of the arc plate 110. The structure and size of the clearance holes are matched with the structure and size of the driven roller 111.
[0025] The mounting bracket 140 extends forward to form an arc plate 120. The detection sensor 150 is a natural gas detection sensor 150. The detection sensor 150 can be selected from existing natural gas leak detection sensors available on the market as needed.
[0026] Two sets of mounting seats are respectively provided on the upper right and lower left sides of the arc plate 2 120. Each set of mounting seats 2 is connected by a driven roller 111 through a bearing.
[0027] As the first embodiment of this utility model, the detection component 100 is configured with arc plate one 110 and arc plate two 120 in conjunction with clamp 130. This allows the entire detection component 100 to be disassembled and reinstalled when necessary. When detecting leaks in long-distance natural gas pipelines, it can be quickly disassembled and reinstalled when encountering the support structure of the natural gas pipeline, greatly reducing the difficulty of installing and disassembling the detection component 100. It also solves the problem that the detection component 100 cannot cross the support structure of the natural gas pipeline for long-distance detection.
[0028] Please see Figures 1 to 3 The drive assembly 200 also includes a drive module 210, a reducer 220, and a bracket 260. The front end of the drive module 210 is fixedly connected to the rear end of the reducer 220.
[0029] The reducer 220 is connected to the rear end of the drive shaft 230, the front end of the reducer 220 is fixedly connected to the upper end of the bracket 260, and the inner part of the drive roller 250 is embedded in the arc plate 120.
[0030] As a second embodiment of this utility model, based on the first embodiment described above, by setting up a drive assembly 200, the active roller 250 and the driven roller 2 of the arc plate 2 120 are installed side by side. With the assistance of the drive module 210, reducer 220, transmission shaft 230 and transmission module (in actual use, the drive module 210 is equipped with a motor for providing power and a power supply battery), the rotating active roller 250 can drive the entire detection assembly 100 to move on the natural gas pipeline. This enables the detection assembly 100 to move and detect on long-distance natural gas pipelines, which helps to improve the detection range of the detection assembly 100.
[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A natural gas pipeline leak detection device, comprising: The detection component (100) and the drive component (200) are characterized in that the detection component (100) includes an arc plate one (110), an arc plate two (120) and a clamp (130), the arc plate two (120) is fixed on the upper side of the arc plate one (110) by the clamp (130), the upper front side of the arc plate two (120) is welded with a mounting bracket (140), and a detection sensor (150) for detecting natural gas pipeline leaks is installed inside the mounting bracket (140). The drive assembly (200) includes a drive shaft (230), a right-angle drive module (240), and a drive roller (250). The front end of the drive shaft (230) is fixedly connected to the rear end of the right-angle drive module (240), and the lower end of the right-angle drive module (240) is fixed with a drive roller (250) for driving. The drive assembly (200) also includes a drive module (210), a reducer (220), and a bracket (260), with the front end of the drive module (210) fixedly connected to the rear end of the reducer (220).
2. The natural gas pipeline leak detection device as described in claim 1, characterized in that: Two sets of mounting seats (112) are installed on the outer wall of the arc plate (110), and a driven roller (111) is rotatably mounted between each set of mounting seats (112) via a bearing.
3. The natural gas pipeline leak detection device as described in claim 2, characterized in that: The outer wall of the arc plate (110) is provided with a set of relief holes in the radial direction. The structure and size of the relief holes are matched with the structure and size of the driven roller (111).
4. A natural gas pipeline leak detection device as described in claim 3, characterized in that: The mounting bracket (140) extends forward to form an arc plate (120), and the detection sensor (150) is a natural gas detection sensor (150).
5. A natural gas pipeline leak detection device as described in claim 4, characterized in that: Two sets of mounting seats are respectively provided on the upper right side and the lower left side of the arc plate 2 (120), and a driven roller 1 (111) is rotatably mounted between each set of mounting seats 2 via a bearing.
6. A natural gas pipeline leak detection device as described in claim 1, characterized in that: The reducer (220) is connected to the rear end of the drive shaft (230), the front end of the reducer (220) is fixedly connected to the upper end of the bracket (260), and the inner part of the drive roller (250) is embedded in the arc plate (120).