Gas leakage monitoring device
By using an adjustable fixing ring and slider structure, combined with multiple air inlets and sensors, the problem of detection blind spots caused by fixed air inlets in gas leak monitoring devices is solved, enabling wider and more accurate gas detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGMAI ENVIRONMENTAL TECH (SHANGHAI) CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-24
AI Technical Summary
The number and layout of existing gas leak monitoring devices are fixed, which limits the detection area, creates blind spots, and makes it difficult to adapt to the gas collection needs at different locations and angles, affecting the accuracy and comprehensiveness of monitoring.
It adopts an adjustable fixing ring and slider structure, combined with multiple air inlet pipes, adapter pipes and connectors, to achieve flexible adjustment of the air inlet pipe position, and improves the detection range and accuracy by using temperature and humidity sensors and controllers for environmental compensation correction.
It expands the gas intake range, avoids the limitation of detection area, improves the comprehensiveness and accuracy of gas leak monitoring, reduces the interference of environmental factors on detection, and reduces false alarms.
Smart Images

Figure CN224162452U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of gas monitoring, and in particular to a gas leak monitoring device. Background Technology
[0002] In many fields such as industrial production, petrochemicals, and gas transmission, gas leaks often pose serious safety hazards, such as explosions and poisoning. Therefore, gas leak monitoring devices play a crucial role.
[0003] A search revealed Chinese Patent Publication No. CN212273725U, which discloses a gas leak monitoring device. By using an integrated circuit board in conjunction with an electromagnetic valve, it can promptly block the gas in the pipeline when a gas detection probe detects a gas leak, thus preventing accidents. This utility model has a simple and reasonable structure, a novel design, and can effectively meet the requirements for real-time detection and processing of pipeline gas, thus possessing high practical value.
[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: gas leak monitoring devices are typically designed and manufactured with a fixed number and layout of air inlets, which cannot be altered according to different monitoring scenarios, space sizes, and complexity. Leaked gas in areas far from the air inlets is difficult to be effectively drawn in and detected, resulting in a limited detection area, blind spots, and potential risks to safe production. Similarly, because the number of air inlets is not adjustable, it is difficult to adapt to the gas collection needs at different locations and angles, thus affecting the accuracy and comprehensiveness of gas leak monitoring. Utility Model Content
[0005] In order to effectively expand the gas intake range and avoid the problem of limited detection area caused by a fixed number of air inlets, and significantly improve the comprehensiveness of gas leak monitoring, this application provides a gas leak monitoring device.
[0006] This application provides a gas leak monitoring device, which adopts the following technical solution: it includes a fixed ring and a detection component. The fixed ring is provided with a groove, and a slider is provided in the groove. A fixing member is provided between the slider and the fixed ring. An air inlet pipe is provided on the slider. The detection component is provided with a transfer pipe. The transfer pipe is provided with multiple connectors. A valve is provided on each connector. The connector is connected to the air inlet pipe through a connecting pipe.
[0007] Optionally, the fastener includes a threaded tube, which is mounted on the slider. One end of the air inlet pipe passes through the threaded tube, and a nut is provided on the threaded tube, which is threadedly connected to the threaded tube.
[0008] Optionally, the detection component includes a housing, which is fixedly connected to the adapter pipe. A monitoring tube is disposed inside the housing, one end of which is connected to the adapter pipe. A gas sensor is disposed on the monitoring tube. A controller is disposed on the inner wall of the housing, and the gas sensor is connected to the controller. A fan is disposed at one end of the monitoring tube.
[0009] Optionally, the controller is equipped with a temperature and humidity sensor and a signal antenna, which are located on the outside of the housing.
[0010] Optionally, a filter screen is provided at one end of the monitoring tube near the adapter tube, and the filter screen is installed on the monitoring tube.
[0011] Optionally, a backup battery is provided on one side of the controller, and the backup battery is connected to the controller.
[0012] Optionally, a fixing bolt is provided on the fixing ring, and the fixing bolt is threadedly connected to the fixing ring.
[0013] In summary, this application includes the following beneficial technical effects:
[0014] 1. This utility model, by incorporating components such as a slider, a fixing ring, an air inlet pipe, an adapter pipe, and a connecting pipe, allows for the fixing of the air inlet pipe's position by connecting the slider and the fixing ring during use. The connecting pipe, connector, and adapter pipe work together to connect multiple air inlets to the detection component, thereby increasing the detection range and avoiding the limitation of the detection area caused by a fixed number of air inlets. This significantly improves the comprehensiveness and accuracy of gas leak monitoring.
[0015] 2. This utility model incorporates components such as a temperature and humidity sensor, a controller, and a signal antenna. During use, the temperature and humidity sensor monitors environmental parameters in real time, and the software algorithm within the controller compensates and corrects the detection results based on this environmental data, reducing the interference of environmental factors on the gas detection sensitivity and minimizing the range of false alarms. The signal antenna and controller work together to maintain a wireless connection with a remote control terminal. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;
[0017] Figure 2 This is a schematic diagram of the internal structure of the outer shell in an embodiment of this application;
[0018] Figure 3 This is an embodiment of the present application. Figure 2 Enlarged view of point A in the middle;
[0019] Figure 4 This is a cross-sectional view of the monitoring tube in an embodiment of this application.
[0020] Reference numerals in the attached diagram: 1. Fixing ring; 2. Slide groove; 3. Slider; 4. Air inlet pipe; 5. Connecting pipe; 6. Adapter pipe; 7. Connector; 8. Threaded pipe; 9. Nut; 10. Housing; 11. Monitoring pipe; 12. Gas sensor; 13. Controller; 14. Temperature and humidity sensor; 15. Signal antenna; 16. Fan; 17. Fixing bolt; 18. Filter screen; 19. Valve; 20. Backup battery. Detailed Implementation
[0021] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0022] This application discloses a gas leak monitoring device. For example... Figure 1 , Figure 2 , Figure 3 As shown, the device includes a fixed ring 1 and a detection assembly. The fixed ring 1 is provided with multiple fixing bolts 17, which are evenly distributed. The fixing bolts 17 are threadedly connected to the fixed ring 1. The fixed ring 1 is placed on a designated pipe, and the pipe is squeezed and fixed by driving the fixing bolts 17 to rotate, thereby fixing the fixed ring 1. The fixed ring 1 is provided with a groove 2, and a slider 3 is provided in the groove 2. A fastener is provided between the slider 3 and the fixed ring 1, and the fastener includes a threaded tube 8.
[0023] See Figure 2 , Figure 3 As shown, the threaded tube 8 is installed on the slider 3, and one end of the air inlet pipe 4 passes through the threaded tube 8. A nut 9 is provided on the threaded tube 8, and the nut 9 is threadedly connected to the threaded tube 8. When it is necessary to adjust the position of the air inlet pipe 4, the nut 9 is driven away from the fixing ring 1 to release the fixation of the slider 3. Then, the slider 3 is driven to move in the slide groove 2. The slider 3 drives the air inlet pipe 4 to move accordingly, thereby adjusting the position of the air inlet pipe 4. When the air inlet pipe 4 moves to the preset position, the nut 9 is driven to rotate in the opposite direction to fix the slider 3. The air inlet pipe 4 is provided on the slider 3, and the adapter pipe 6 is provided on the detection component. The detection component includes a housing 10, and the housing 10 is fixedly connected to the adapter pipe 6.
[0024] See Figure 2 , Figure 4As shown, a monitoring tube 11 is provided inside the outer casing 10. One end of the monitoring tube 11 is connected to the adapter tube 6. A filter screen 18 is provided at the end of the monitoring tube 11 near the adapter tube 6. The filter screen 18 is installed on the monitoring tube 11. A gas sensor 12 is provided on the monitoring tube 11. A controller 13 is provided on the inner wall of the outer casing 10. A backup battery 20 is provided on one side of the controller 13. The backup battery 20 is connected to the controller 13. The controller 13 is connected to the mains power through a wire.
[0025] See Figure 1 , Figure 2 As shown, the gas sensor 12 is connected to the controller 13. The controller 13 is equipped with a temperature and humidity sensor 14 and a signal antenna 15. The temperature and humidity sensor 14 monitors environmental parameters in real time, and the software algorithm in the controller 13 compensates and corrects the detection results according to these environmental data to reduce the interference of environmental factors on the gas detection sensitivity. The temperature and humidity sensor 14 and the signal antenna 15 are located on the outside of the housing 10. A fan 16 is installed at one end of the monitoring tube 11. Multiple connectors 7 are installed on the adapter tube 6. Valves 19 are installed on the connectors 7. The connectors 7 are connected to the air inlet tube 4 through the connecting tube 5.
[0026] The implementation principle of a gas leak monitoring device according to this application embodiment is as follows: In use, according to the actual situation, the corresponding number of air inlet pipes 4 are installed on the fixed ring 1 by the slider 3, and the position of the air inlet pipes 4 is adjusted. Then, the nut 9 on the threaded pipe 8 is driven to rotate, so that the nut 9 squeezes and fixes the fixed ring 1, thereby fixing the position of the air inlet pipes 4. Then, the air inlet pipes 4 are connected to the connector 7 through the connecting pipe 5, and the valve 19 on the connector 7 is opened, so that the air inlet pipes 4 are connected to the adapter pipe 6. The fan 16 works and performs air extraction. The air flow drawn in from the air inlet pipes 4 enters the monitoring pipe 11 after passing through the connecting pipe 5 and the adapter pipe 6. The gas sensor 12 on the monitoring pipe 11 is used for detection. When leaked gas is detected and reaches the preset value, the controller 13 sends the information to the remote control terminal through the signal antenna 15 to achieve the alarm effect.
[0027] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A gas leak monitoring device, comprising a fixing ring (1) and a detection assembly, characterized in that: The fixed ring (1) is provided with a sliding groove (2), and a slider (3) is provided in the sliding groove (2). A fixing member is provided between the slider (3) and the fixed ring (1). An air inlet pipe (4) is provided on the slider (3). An adapter pipe (6) is provided on the detection component. Multiple connectors (7) are provided on the adapter pipe (6). A valve (19) is provided on the connector (7). The connector (7) is connected to the air inlet pipe (4) through a connecting pipe (5).
2. The gas leak monitoring device according to claim 1, characterized in that: The fastener includes a threaded tube (8), which is mounted on the slider (3). One end of the air inlet pipe (4) passes through the threaded tube (8), and a nut (9) is provided on the threaded tube (8). The nut (9) is threadedly connected to the threaded tube (8).
3. The gas leak monitoring device according to claim 1, characterized in that: The detection component includes a housing (10), which is fixedly connected to the adapter pipe (6). A monitoring tube (11) is provided inside the housing (10). One end of the monitoring tube (11) is connected to the adapter pipe (6). A gas sensor (12) is provided on the monitoring tube (11). A controller (13) is provided on the inner wall of the housing (10). The gas sensor (12) is connected to the controller (13). A fan (16) is provided at one end of the monitoring tube (11).
4. A gas leak monitoring device according to claim 3, characterized in that: The controller (13) is equipped with a temperature and humidity sensor (14) and a signal antenna (15), which are located on the outside of the housing (10).
5. A gas leak monitoring device according to claim 3, characterized in that: A filter screen (18) is provided at one end of the monitoring tube (11) near the transfer tube (6), and the filter screen (18) is installed on the monitoring tube (11).
6. A gas leak monitoring device according to claim 3, characterized in that: A backup battery (20) is provided on one side of the controller (13), and the backup battery (20) is connected to the controller (13).
7. A gas leak monitoring device according to claim 1, characterized in that: The fixing ring (1) is provided with a fixing bolt (17), and the fixing bolt (17) is threadedly connected to the fixing ring (1).
Citation Information
Patent Citations
Gas leakage monitoring device
CN212273725U