A natural gas connection flange condition monitoring device

CN224414930UActive Publication Date: 2026-06-26高琦

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
高琦
Filing Date
2025-08-21
Publication Date
2026-06-26

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    Figure CN224414930U_ABST
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Abstract

The utility model discloses a natural gas connecting flange state monitoring device, including fixed bottom plate, one end top of fixed bottom plate is fixedly connected with two fixed vertical boards, two fixed vertical boards outside swing joint has location component, the location component end portion is fixedly connected with fixed component, and the fixed component top middle part is fixedly installed with detection component, the other end top of fixed bottom plate is fixedly connected with support component in symmetry, the inside installation of support component has symmetrical two natural gas pipeline, and one end outside fixed connection has flange plate of two natural gas pipeline mutual close, this device can detect the state of flange connecting place and can detect various specifications natural gas pipeline, and the scope of application is wide, utilizes integrated detection sensor to detect the temperature, pressure, connection state etc. of flange connecting place simultaneously, and through alarm lamp, bee calling external loudspeaker and report, the position of flange connecting failure place is convenient and direct perception to determine.
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Description

Technical Field

[0001] This utility model relates to the field of flange condition monitoring technology, specifically a natural gas connection flange condition monitoring device. Background Technology

[0002] Natural gas connection flanges are key connecting components in natural gas pipeline systems used to connect pipes, valves, equipment, and other parts. They achieve a sealed connection by bolting two flanges together. They are characterized by easy disassembly and a strong connection, and are widely used in natural gas transportation, storage, and application scenarios.

[0003] Currently, the condition inspection of natural gas connection flanges mainly relies on manual inspection. Although this method is still used in the operation and maintenance of natural gas pipelines, its limitations are becoming increasingly apparent as the industry's requirements for safety and efficiency increase. The inspection efficiency is low, the coverage is limited, and traditional manual inspection relies on sensory judgment, which makes it difficult to identify minor leaks and easily leads to the omission of hidden dangers. Long-term reliance on manual inspection requires a large investment of manpower. Utility Model Content

[0004] The purpose of this invention is to provide a natural gas connection flange condition monitoring device to solve the problems mentioned in the background art, such as the difficulty in identifying minute leaks due to the reliance on sensory judgment for manual inspection, which can easily lead to the omission of hidden dangers and the need for a large investment of manpower for long-term manual inspection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a natural gas connection flange status monitoring device, comprising a fixed base plate, two fixed vertical plates symmetrically fixedly connected to the top of one end of the fixed base plate, a positioning component movably connected to the outer side of the two fixed vertical plates, a fixing component threadedly connected to the end of the positioning component, a detection component fixedly installed at the top center of the fixing component, and a support component symmetrically fixedly connected to the top of the other end of the fixed base plate. Two symmetrical natural gas pipelines are installed inside the support component, and flanges are fixedly connected to the outer side of the two natural gas pipelines at their adjacent ends. This device can detect the status of the flange connection and can detect natural gas pipelines of various specifications, with a wide range of applications. Simultaneously, it utilizes integrated detection sensors to detect the temperature, pressure, and connection status of the flange connection, and provides alarms via alarm lights and a buzzer speaker to alert personnel, facilitating intuitive identification of the location of flange connection faults, improving the comprehensiveness and correlation of monitoring, and reducing the risk of missed detections.

[0006] Preferably, the positioning assembly includes two lifting limit frames, which are movably sleeved on the outside of two fixed vertical plates. The bottom ends of the two lifting limit frames are fixedly connected to positioning vertical plates, and positioning bolts are threaded to the sides of the positioning vertical plates to make preliminary adjustments to the position of the lifting limit frames and better adapt to the diameter of the natural gas pipeline.

[0007] Preferably, both of the fixed vertical plates have multiple fixed limiting holes equidistantly opened on their sides, and both of the fixed vertical plates have anti-detachment blocks fixedly connected to their top ends to limit the lifting limit frame and prevent it from falling off. At the same time, the limiting holes provide a limiting reference for the lifting limit frame.

[0008] Preferably, the fixing component includes two adjusting bolts, which are threadedly connected to the middle of the end of the lifting limit frame away from the fixed vertical plate. The bottom end of the adjusting bolts is rotatably connected to a support frame, and the inner wall of the support frame is fixedly connected to a contact anti-slip pad, which is pressed and fixed from the top of the natural gas pipeline.

[0009] Preferably, the detection component includes a mounting plate, which is fixedly connected to the middle of the top of two lifting limit frames. Two L-shaped mounting brackets are symmetrically fixedly connected to the top of the mounting plate. A display controller is fixedly mounted on the top of the two L-shaped mounting brackets. An alarm light is signal-connected to one corner of the top of the display controller. A buzzer speaker is signal-connected to the middle of one side of the display controller. A plug-in power supply battery pack is inserted into the middle of the side of the display controller. A connecting integrated wire is signal-connected to the middle of the bottom of the display controller. An integrated detection sensor is signal-connected to the bottom of the connecting integrated wire. The integrated detection sensor is fixedly installed between two flanges to detect the state of the flange connection.

[0010] Preferably, the support assembly includes two fixed bases, which are symmetrically fixedly connected to the top of the fixed base plate at the end away from the fixed vertical plate. Each of the two fixed bases is fixedly connected to an additional support frame at its top, providing support from the bottom of the natural gas pipeline.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The device is fixed from the top and bottom surfaces of the natural gas pipeline by means of a fixed base plate, a fixed vertical plate, a lifting limit frame, a fixed limit hole, a positioning vertical plate, positioning bolts, a fixed base, a support frame, and adjusting bolts. This allows the device to be stably installed on the outside of the pipeline and the fixing range is adjustable, making it convenient to fix natural gas pipelines of different specifications.

[0013] This device integrates wires, a display controller, alarm lights, a buzzer speaker, a plug-in power supply battery pack, an anti-detachment block, and integrated detection sensors to monitor the status of the flange connection in real time. Based on the monitoring data, it promptly issues flashing lights and alarms, facilitating timely detection of faults by staff. It features strong real-time performance, rapid risk response, comprehensive monitoring, reduced missed detections and misjudgments, high accuracy, and reliable data. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram showing the location distribution of the display controller, alarm light, buzzer speaker, and plug-in power supply battery pack of this utility model.

[0016] Figure 3 This is the front view of the present utility model;

[0017] Figure 4 This is a side view of the present invention.

[0018] In the diagram: 1. Fixed base plate; 2. Fixed vertical plate; 3. Lifting limit frame; 4. Fixed limit hole; 5. Positioning vertical plate; 6. Positioning bolt; 7. Fixed base; 8. Support frame; 9. Adjusting bolt; 10. Natural gas pipeline; 11. Connecting flange; 12. Mounting horizontal plate; 13. Contact anti-slip pad; 14. Connecting integrated wire; 15. Display controller; 16. Alarm light; 17. Buzzer speaker; 18. Plug-in power supply battery pack; 19. Anti-detachment block; 20. Integrated detection sensor; 21. L-shaped mounting bracket. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Please see Figure 1-4 This utility model provides a natural gas connection flange status monitoring device, including a fixed base plate 1. Two fixed vertical plates 2 are symmetrically fixedly connected to the top of one end of the fixed base plate 1. A positioning component is movably connected to the outer side of the two fixed vertical plates 2. A fixing component is threadedly connected to the end of the positioning component. A detection component is fixedly installed at the top center of the fixing component. A support component is symmetrically fixedly connected to the top of the other end of the fixed base plate 1. Two symmetrical natural gas pipelines 10 are installed inside the support component. A flange 11 is fixedly connected to the outer side of the two natural gas pipelines 10 that are close to each other. The flange 11 is connected by matching bolts and is equipped with a sealing gasket.

[0021] Furthermore, the positioning assembly includes two lifting limit frames 3, which are respectively movably sleeved on the outside of two fixed vertical plates 2. The top surface of the lifting limit frame 3 has a through hole matching the fixed vertical plate 2, so that the lifting limit frame 3 can slide up and down along the fixed vertical plate 2. The bottom ends of the two lifting limit frames 3 are fixedly connected to positioning vertical plates 5. Positioning bolts 6 are threadedly connected to the side of the positioning vertical plate 5, and the center of the positioning vertical plate 5 has a threaded hole matching the positioning bolts 6.

[0022] Furthermore, multiple fixing limit holes 4 are equally spaced on the sides of both fixed vertical plates 2, and anti-detachment blocks 19 are fixedly connected to the top of both fixed vertical plates 2. The fixing limit holes 4 and positioning bolts 6 are matched.

[0023] Furthermore, the fixing component includes two adjusting bolts 9, which are threadedly connected to the middle of the end of the lifting limit frame 3 away from the fixed vertical plate 2. The bottom end of the adjusting bolts 9 is rotatably connected to a support frame 8. The support frame 8 and the adjusting bolts 9 can rotate relative to each other. When the support frame 8 rotates, the adjusting bolts 9 can remain stationary. The inner wall of the support frame 8 is fixedly connected to a contact anti-slip pad 13, which is used to increase the friction with the pipeline and make the device more stable.

[0024] Furthermore, the detection assembly includes a mounting plate 12, which is fixedly connected to the top center of two lifting limit frames 3. Two L-shaped mounting brackets 21 are symmetrically fixedly connected to the top of the mounting plate 12. A display controller 15 is fixedly mounted on the top of the two L-shaped mounting brackets 21. An alarm light 16 is signal-connected to one corner of the top of the display controller 15. A buzzer speaker 17 is signal-connected to the center of one side of the display controller 15. A plug-in power supply battery pack 18 is inserted into the center of the side of the display controller 15. A connecting integrated wire 14 is signal-connected to the center of the bottom of the display controller 15. An integrated detection sensor 20 is signal-connected to the bottom of the connecting integrated wire 14. The integrated detection sensor 20 is fixedly installed between two flanges 11. The integrated detection sensor 20 collects relevant data from the flanges 11 according to the corresponding detection principle. The integrated detection sensor 20 mainly includes a pressure sensor, a temperature sensor, a stress sensor, and a leakage sensor.

[0025] The pressure sensor is mainly used to detect the change in resistance of the sensing element caused by pressure, converting it into a measurable electrical signal to reflect the internal pressure at the flange 11 connection. The temperature sensor uses the thermoelectric effect of a thermocouple or the resistance change property of a PT100 or other resistance thermometer with temperature to measure temperature. The stress sensor senses the deformation of the bolt under stress through a strain gauge, converting it into an electrical signal to reflect the tightness. The leak sensor judges the sealing condition by detecting gas concentration or sound waves. The integrated wire 14 serves as a signal transmission path, accurately transmitting the electrical signal generated by the integrated detection sensor 20 to the display controller 15, avoiding interference or attenuation during transmission, and ensuring the integrity and accuracy of the signal. The display controller 15... It receives and analyzes electrical signals from sensors, converting them into intuitive digital or graphical information such as temperature and pressure values ​​for easy monitoring. Internally, it has preset normal threshold ranges for various parameters, comparing real-time data with these thresholds to determine if the flange 11 is functioning correctly. The alarm light 16 and the buzzer speaker 17 are controlled by the display controller 15. When the display controller 15 determines that the monitored data exceeds the threshold, it sends a trigger signal to the alarm light 16 and the buzzer speaker 17, causing them to flash and sound, quickly alerting maintenance personnel and preventing further danger. The plug-in power supply battery pack 18 houses all power-consuming components; its pluggable design facilitates timely replacement and prevents monitoring interruptions.

[0026] Furthermore, the support assembly includes two fixed bases 7, which are symmetrically fixed to the top of the fixed base plate 1 at the end away from the fixed vertical plate 2. Each of the two fixed bases 7 has an additional support frame 8 fixedly connected to its top, which supports the bottom of the natural gas pipeline 10.

[0027] When this application embodiment is used:

[0028] When installing the device, first connect the natural gas pipeline 10 and flange 11, and place the integrated detection sensor 20 between the flanges 11, sealing it with a sealing gasket. Then, place the device's fixed base plate 1, fixed vertical plate 2, fixed base 7, and support frame 8 on the outer bottom of the natural gas pipeline 10, ensuring that the contact anti-slip pad 13 inside the support frame 8 contacts the outer bottom of the natural gas pipeline 10. Next, adjust the position of the lifting limit frame 3 on the fixed vertical plate 2. After adjusting the position, insert the positioning bolt 6 through the positioning vertical plate 5 into the fixed position. The lifting limit frame 3 is limited inside the limiting hole 4. Then, the adjusting bolt 9 is rotated and screwed into the lifting limit frame 3, so that the support frame 8 at the bottom of the adjusting bolt 9 is close to the top of the natural gas pipeline 10. The adjusting bolt 9 is continuously rotated so that the contact anti-slip pad 13 inside the support frame 8 contacts the top of the natural gas pipeline 10, thus completing the fixation of the device. Then, the mounting plate 12, display controller 15, alarm light 16, buzzer speaker 17, and plug-in power supply battery pack 18 are installed in sequence. At the same time, the signal of the display controller 15 connected to the integrated wire 14 is connected.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A natural gas connection flange condition monitoring device, comprising a fixed base plate (1), characterized in that: Two fixed vertical plates (2) are symmetrically fixedly connected to the top of one end of the fixed base plate (1). A positioning component is movably connected to the outside of the two fixed vertical plates (2). A fixing component is threadedly connected to the end of the positioning component. A detection component is fixedly installed at the top center of the fixing component. A support component is symmetrically fixedly connected to the top of the other end of the fixed base plate (1). Two symmetrical natural gas pipelines (10) are installed inside the support component. A flange (11) is fixedly connected to the outside of the two natural gas pipelines (10) that are close to each other.

2. The natural gas connection flange condition monitoring device according to claim 1, characterized in that: The positioning assembly includes two lifting limit frames (3), which are respectively movably sleeved on the outside of two fixed vertical plates (2). The bottom ends of the two lifting limit frames (3) are fixedly connected to positioning vertical plates (5), and the side of the positioning vertical plates (5) is threaded with positioning bolts (6).

3. The natural gas connection flange condition monitoring device according to claim 2, characterized in that: Both of the fixed vertical plates (2) have multiple fixed limiting holes (4) at equal intervals on their sides, and both of the fixed vertical plates (2) have anti-detachment blocks (19) fixedly connected to their top ends.

4. The natural gas connection flange condition monitoring device according to claim 2, characterized in that: The fixing assembly includes two adjusting bolts (9), which are threadedly connected to the middle of the end of the lifting limit frame (3) away from the fixed vertical plate (2). The bottom end of the adjusting bolts (9) is rotatably connected to a support frame (8), and the inner wall of the support frame (8) is fixedly connected to a contact anti-slip pad (13).

5. A natural gas connection flange condition monitoring device according to claim 4, characterized in that: The detection assembly includes a mounting plate (12), which is fixedly connected to the middle of the top of two lifting limit frames (3). Two L-shaped mounting brackets (21) are symmetrically fixedly connected to the top of the mounting plate (12). A display controller (15) is fixedly installed on the top of the two L-shaped mounting brackets (21). An alarm light (16) is signal-connected to one corner of the top of the display controller (15). A buzzer speaker (17) is signal-connected to the middle of one side of the display controller (15). A plug-in power supply battery pack (18) is inserted into the middle of the side of the display controller (15). A connecting integrated wire (14) is signal-connected to the middle of the bottom of the display controller (15). An integrated detection sensor (20) is signal-connected to the bottom of the connecting integrated wire (14). The integrated detection sensor (20) is fixedly installed between two flanges (11).

6. The natural gas connection flange condition monitoring device according to claim 1, characterized in that: The support assembly includes two fixed bases (7), which are symmetrically fixed to the top of the fixed base plate (1) away from the fixed vertical plate (2), and each of the two fixed bases (7) is fixedly connected to another support frame (8).