A compressed natural gas storage well leak detection device
By introducing a protective door, a transparent observation window, a sliding cover, and an elastic clamping structure into the leak detection device for compressed natural gas storage wells, the problem of poor device protection performance has been solved, and the stability of the detection head and ease of operation have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 李海龙
- Filing Date
- 2025-08-19
- Publication Date
- 2026-05-29
Smart Images

Figure CN224300950U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of compressed natural gas storage well leakage detection devices, specifically a compressed natural gas storage well leakage detection device. Background Technology
[0002] Natural gas leaks account for more than 43% of all gas-related accidents. High-pressure gas storage wells, due to long-term pressure (typically up to 25 MPa) and underground corrosive environments, are prone to metal fatigue cracks and sealing failures. Traditional acoustic detection methods have a detection rate of less than 60% for micro-leaks (<0.1 L / min), highlighting the urgent need for more precise detection methods.
[0003] However, it still has some drawbacks. For example, the current compressed natural gas storage well leakage detection device has a relatively simple structure. Generally, the detection head and button are exposed, which makes the detection head easy to be damaged and dust to enter. The button is also easy to be accidentally touched or bumped, which affects the use of the detection device and has poor protection performance.
[0004] To address the aforementioned issues, this application proposes a leak detection device for compressed natural gas storage wells. Utility Model Content
[0005] The purpose of this invention is to provide a leak detection device for compressed natural gas storage wells to solve the problem of poor protection performance in the prior art mentioned in the background section.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a compressed natural gas storage well leakage detection device, comprising a detection device body, anti-slip pads fixedly installed on both sides of the detection device body, a movable shaft fixedly installed on one side of the front end of the detection device body, and a protective door movably connected to one side of the outer surface of the movable shaft.
[0007] Preferably, a transparent observation window is fixedly installed on the front outer surface of the protective door, and a display screen and control buttons are fixedly installed on the front of the main body of the detection device, with the display screen located above the control buttons.
[0008] Preferably, a sliding cover is slidably installed on the upper end of the main body of the detection device, and a connecting groove is provided on the upper end of the main body of the detection device.
[0009] Preferably, a connecting wire is movably connected to the inner cavity of the main body of the detection device, and a detection head is fixedly connected to the upper outer surface of the connecting wire.
[0010] Preferably, a reset spring is fixedly installed on the lower outer surface of the inner cavity of the connecting groove, a clamping block is fixedly connected to one side of the reset spring, a protective soft pad is fixedly installed on one side of the outer surface of the clamping block, and an anti-slip pushing pad is fixedly installed on the upper end of the sliding cover.
[0011] Preferably, there are two sets of anti-slip mats, and the protective door is located in front of the display screen and control buttons.
[0012] Preferably, the sliding cover is slidably connected to the rear end of the detection device body through the upper end of the connecting groove, and there are two sets of the reset spring and the clamping blocks. The clamping blocks are located on both sides of the detection head and are set in an arc shape.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This utility model uses a protective door and a transparent observation window connected by a movable shaft to form the first line of protection, effectively preventing the control buttons and display screen from being accidentally touched or damaged by external forces. The anti-slip pads on both sides enhance the stability of the device, making it especially suitable for slippery environments such as underground wellheads. Operators can read data in real time through the transparent observation window without having to frequently open the protective door.
[0015] This invention utilizes a second protective structure consisting of a sliding cover and a connecting groove to prevent the detection head from being exposed to dust or mechanical impact when not in use. An arc-shaped clamping block, in conjunction with a return spring and protective pad, automatically secures the detection head in the storage state, preventing tangling of the connecting wires and wear on the probe surface. The anti-slip push pad design makes the sliding cover operation more convenient and reduces the risk of slippage during opening and closing. The return spring and clamping block within the connecting groove, along with the protective pad on the outside of the clamping block, together form an elastic clamping structure that firmly holds the detection head, preventing it from shaking or falling off during use. The elastic design of the return spring makes the detection head more flexible during installation or removal, while the arc-shaped design of the clamping block better conforms to the shape of the detection head, ensuring both stability and comfort during clamping. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a compressed natural gas storage well leakage detection device according to the present invention;
[0017] Figure 2 This is a schematic diagram of the protective door opening structure of a compressed natural gas storage well leakage detection device according to the present invention;
[0018] Figure 3 This is a schematic diagram of the sliding cover opening structure of a compressed natural gas storage well leakage detection device according to the present invention;
[0019] Figure 4 This is a schematic diagram of the detection head structure of a compressed natural gas storage well leakage detection device according to the present invention.
[0020] In the diagram: 1. Main body of the detection device; 2. Anti-slip pad; 3. Movable shaft; 4. Protective door; 5. Transparent observation window; 6. Display screen; 7. Control button; 8. Sliding cover; 9. Connecting groove; 10. Connecting wire; 11. Detection head; 12. Return spring; 13. Clamping block; 14. Protective soft pad; 15. Anti-slip pushing pad. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Please see Figures 1-2 This utility model provides a technical solution: a compressed natural gas storage well leakage detection device, including a detection device body 1. Anti-slip pads 2 are fixedly installed on both sides of the detection device body 1. The double-sided arrangement of the anti-slip pads 2 enhances the stability of the device, making it particularly suitable for slippery environments such as underground wellheads. The operator can read data in real time through a transparent observation window 5 without frequently opening the protective door 4. A movable shaft 3 is fixedly installed on one side of the front end of the detection device body 1. A protective door 4 is movably connected to the outer surface of one side of the movable shaft 3. A transparent observation window 5 is fixedly installed on the outer surface of the front end of the protective door 4. The protective door 4 and the transparent observation window 5 connected by the movable shaft 3 constitute the first... The detection device body 1 has a second layer of protection to effectively prevent the control button 7 and the display screen 6 from being accidentally touched or damaged by external force. The display screen 6 and the control button 7 are fixedly installed at the front end of the detection device body 1. The display screen 6 is located above the control button 7. There are two sets of anti-slip pads 2. The protective door 4 is located at the front end of the display screen 6 and the control button 7. The upper end of the detection device body 1 is slidably installed with a sliding cover 8. The upper end of the detection device body 1 is provided with a connecting groove 9. The second protective structure formed by the sliding cover 8 and the connecting groove 9 prevents the detection head 11 from being exposed to dust or mechanical impact when not in use. The sliding cover 8 is slidably connected to the rear end of the detection device body 1 through the upper end of the connecting groove 9.
[0023] In this embodiment, as Figures 3-4As shown, a connecting wire 10 is movably connected to the inner cavity of the main body 1 of the detection device. A detection head 11 is fixedly connected to the upper outer surface of the connecting wire 10. A return spring 12 is fixedly installed on the lower outer surface of the inner cavity of the connecting groove 9. There are two sets of return springs 12 and clamping blocks 13. A clamping block 13 is fixedly connected to one side of the return spring 12. A protective soft pad 14 is fixedly installed on one side of the outer surface of the clamping block 13. The arc-shaped clamping block 13, together with the return spring 12 and the protective soft pad 14, automatically fixes the detection head 11 in the storage state, which not only prevents the connecting wire 10 from getting tangled, but also avoids wear on the probe surface. The anti-slip pushing pad 15 is designed to make the sliding cover 8. The operation is more convenient. The clamping blocks 13 are located on both sides of the detection head 11, and the clamping blocks 13 are set in an arc shape. The reset spring 12 set in the connecting groove 9, together with the clamping blocks 13 and the protective soft pad 14 on the outside of the clamping blocks 13, form an elastic clamping structure that can firmly clamp the detection head 11 and prevent it from shaking or falling off during use. The upper end of the sliding cover 8 is fixedly installed with an anti-slip pushing pad 15. The elastic design of the reset spring 12 makes the detection head 11 more flexible when installed or removed. At the same time, the arc design of the clamping blocks 13 can better fit the shape of the detection head 11, ensuring the stability and comfort of the clamping.
[0024] Working principle:
[0025] The first layer of protection consists of a protective door 4 and a transparent observation window 5 connected by a movable shaft 3, effectively preventing accidental touches or damage to the control button 7 and display screen 6. Anti-slip pads 2 on both sides enhance the stability of the device, making it particularly suitable for slippery environments such as underground wellheads. Operators can read data in real time through the transparent observation window 5 without frequently opening the protective door 4. The second layer of protection, consisting of a sliding cover 8 and a connecting groove 9, prevents the detection head 11 from being exposed to dust or mechanical impact when not in use. An arc-shaped clamping block 13, in conjunction with a return spring 12 and a protective pad 14, automatically secures the detection head when stored. 11. This design prevents the connecting wire 10 from getting tangled and avoids wear on the probe surface. The anti-slip push pad 15 makes the operation of the sliding cover 8 more convenient and reduces the risk of slippage during opening and closing. The reset spring 12 and the clamping block 13 set in the connecting groove 9, together with the protective soft pad 14 on the outside of the clamping block 13, form an elastic clamping structure that can firmly clamp the detection head 11 and prevent it from shaking or falling off during use. The elastic design of the reset spring 12 makes the detection head 11 more flexible when installing or removing it. At the same time, the arc design of the clamping block 13 can better fit the shape of the detection head 11, ensuring the stability and comfort of the clamping.
[0026] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
Claims
1. A leak detection device for compressed natural gas storage wells, comprising a detection device body (1), characterized in that: Anti-slip pads (2) are fixedly installed on both sides of the main body (1) of the detection device. A movable shaft (3) is fixedly installed on one side of the front end of the main body (1). A protective door (4) is movably connected to one side of the outer surface of the movable shaft (3).
2. The compressed natural gas storage well leakage detection device according to claim 1, characterized in that: A transparent observation window (5) is fixedly installed on the outer surface of the front end of the protective door (4), and a display screen (6) and a control button (7) are fixedly installed on the front end of the main body (1) of the detection device. The display screen (6) is located above the control button (7).
3. The compressed natural gas storage well leakage detection device according to claim 2, characterized in that: A sliding cover (8) is slidably installed on the upper end of the main body (1) of the detection device, and a connecting groove (9) is opened on the upper end of the main body (1) of the detection device.
4. The compressed natural gas storage well leakage detection device according to claim 3, characterized in that: The inner cavity of the main body (1) of the detection device is movably connected to a connecting line (10), and a detection head (11) is fixedly connected to the outer surface of the upper end of the connecting line (10).
5. The compressed natural gas storage well leakage detection device according to claim 4, characterized in that: A reset spring (12) is fixedly installed on the lower outer surface of the inner cavity of the connecting groove (9). A clamping block (13) is fixedly connected to one side of the reset spring (12). A protective soft pad (14) is fixedly installed on one side of the outer surface of the clamping block (13). An anti-slip pushing pad (15) is fixedly installed on the upper end of the sliding cover (8).
6. The compressed natural gas storage well leakage detection device according to claim 1, characterized in that: The number of anti-slip mats (2) is two sets, and the protective door (4) is located in front of the display screen (6) and the control button (7).
7. The compressed natural gas storage well leakage detection device according to claim 5, characterized in that: The sliding cover (8) is slidably connected to the rear end of the detection device body (1) through the upper end of the connecting groove (9). There are two sets of the reset spring (12) and the clamping block (13). The clamping block (13) is located on both sides of the detection head (11) and is set to be arc-shaped.