Fiber optic acoustic wave sensing OTDR pipe monitoring device

Abstract

This utility model discloses a fiber optic acoustic wave sensing OTDR pipeline monitoring device, relating to the field of mechanical engineering technology. The fiber optic acoustic wave sensing OTDR pipeline monitoring device includes an OTDR fiber optic tester, a display screen, buttons, connectors, and interfaces. The OTDR fiber optic tester is equipped with four protective devices, each including rubber damping pads and rubber limiting blocks. When the fiber optic acoustic wave sensing OTDR pipeline monitoring device is subjected to external vibration, the vibration is transmitted to the OTDR fiber optic tester. At this time, the rubber damping pads installed at the four corners of the OTDR fiber optic tester come into play. They possess elasticity and viscosity; their elasticity allows them to deform under vibration impact, converting some of the vibration energy into their own elastic potential energy. Through this elastic deformation and internal dissipation, the rubber damping pads absorb and buffer the vibration energy, reducing the vibration transmitted to the inside of the OTDR fiber optic tester, thereby protecting the internal precision optical and electronic components.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to an optical fiber acoustic wave sensing OTDR pipeline monitoring device. Background Technology

[0002] With the rapid development of modern industry, pipeline transportation of various substances such as oil, natural gas, and water is widely used in various fields. The safety of pipeline transportation is of paramount importance. Once a leak or damage occurs, it will not only waste resources but may also cause serious safety accidents, causing great harm to the environment and society. Therefore, real-time and accurate monitoring of pipelines has become the key to ensuring the safe operation of pipelines.

[0003] Among them, the fiber optic acoustic wave sensing OTDR pipeline monitoring device, based on distributed fiber optic sensing technology, utilizes the scattering characteristics of light signals in optical fibers to achieve continuous monitoring of long-distance pipelines. It accurately detects acoustic signals around the pipeline, thereby promptly identifying abnormalities such as pipeline leaks and damage caused by third-party construction. This device boasts numerous advantages, including high sensitivity, long-distance monitoring, and resistance to electromagnetic interference, and is finding increasingly widespread application in the field of pipeline monitoring.

[0004] The existing housings of fiber optic acoustic wave sensing OTDR pipeline monitoring devices have significant shortcomings when dealing with these complex environments. Ordinary housing structures cannot effectively buffer and absorb vibration energy when subjected to vibration, making the precision optical components and electronic devices inside the device extremely susceptible to damage due to vibration. This, in turn, affects the monitoring performance and service life of the device. According to relevant statistics, the proportion of device failures caused by vibration in some harsh environment applications can be as high as 30% or more. At the same time, frequent vibration may also loosen the internal wiring connections of the device, causing signal transmission interruption or instability, seriously affecting the accuracy and reliability of monitoring data, leading to false alarms and missed alarms, and posing a great hidden danger to pipeline safety monitoring. Utility Model Content

[0005] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a fiber optic acoustic wave sensing OTDR pipeline monitoring device. This device can solve the problem that ordinary shell structures cannot effectively buffer and absorb vibration energy when subjected to vibration, which makes the precision optical components and electronic devices inside the device easily damaged by vibration, thus affecting the monitoring performance and service life of the device. According to relevant statistics, the proportion of device failures caused by vibration in some harsh environment application scenarios is as high as 30% or more. At the same time, frequent vibration may also loosen the internal wiring connections of the device, causing signal transmission interruption or instability, seriously affecting the accuracy and reliability of monitoring data, leading to false alarms, missed alarms and other situations, which pose a great hidden danger to pipeline safety monitoring.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an optical fiber acoustic wave sensing OTDR pipeline monitoring device, including a TDR optical fiber tester, a display screen, buttons, connectors and interfaces, wherein the OTDR optical fiber tester is equipped with four protective devices.

[0007] The protective device includes rubber damping pads and rubber limiting blocks. T-shaped block grooves are opened on the outer walls of the four corners of the OTDR fiber optic tester. Two first limiting block grooves are opened on the outer walls of both sides of the four T-shaped block grooves. Second limiting block grooves are opened on the outer walls of both sides of the T-shaped block on the rubber limiting block. Limiting blocks are slidably connected inside the two second limiting block grooves.

[0008] Among them, the outer wall of the T-shaped block on the rubber limit block is provided with a push block groove. Two push blocks are slidably connected inside the push block groove. Three reset springs are set inside the push block groove. The rubber limit block is installed inside the push block groove and its two outer walls are respectively in contact with the outer wall of the corresponding push block. The four limit devices are set at the four corners of the OTDR fiber optic tester.

[0009] Preferably, the rubber damping pad is L-shaped, and the outer wall of the T-shaped block on the rubber damping pad is slidably connected to the inside of the corresponding T-shaped block groove;

[0010] The interiors of both second limiting block slots are connected to the interiors of the push block slots.

[0011] Preferably, the ends of the two push blocks near the limiting block slide into the interior of the second limiting block groove, and the outer wall of the limiting block is fixedly connected to the two ends of three reset springs, which are respectively fixedly connected to the outer wall of one side of the corresponding push block.

[0012] The end of each limiting block near the first limiting block groove slides into the interior of the T-shaped block groove and contacts the inner wall of the corresponding first limiting block groove.

[0013] Preferably, the connector is installed on the upper end of the OTDR fiber optic tester;

[0014] The OTDR fiber optic tester is electrically connected to the connector.

[0015] Preferably, the interface is installed at the lower end of the OTDR fiber optic tester;

[0016] The OTDR fiber optic tester is electrically connected to the interface.

[0017] Preferably, the outer wall of the connector is fitted with a connector protective cover, and an interface protection block is installed inside the interface;

[0018] The display screen is fixedly installed on the upper outer wall of the OTDR fiber optic tester, and the buttons are installed on the lower outer wall of the OTDR fiber optic tester.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This fiber optic acoustic wave sensing OTDR pipeline monitoring device utilizes a protective device. When the OTDR pipeline monitoring device is subjected to external vibration, the vibration is transmitted to the OTDR fiber optic tester. At this time, the rubber damping pads installed at the four corners of the OTDR fiber optic tester come into play. The pads have elasticity and viscosity. Their elasticity allows them to deform when subjected to vibration impact, converting some of the vibration energy into their own elastic potential energy, like a compressed spring. At the same time, their viscosity allows the vibration energy to be converted into heat energy and dissipated through intermolecular friction within the pads. Through this elastic deformation and internal dissipation, the rubber damping pads absorb and buffer the vibration energy, reducing the vibration transmitted to the inside of the OTDR fiber optic tester, thereby protecting the internal precision optical and electronic components, reducing the risk of performance degradation or damage caused by vibration, and ensuring the stable and reliable operation of the device. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the external structure of the rubber damping pad of this utility model;

[0024] Figure 3 This is a schematic diagram of the external structure of the OTDR fiber optic tester of this utility model;

[0025] Figure 4 This utility model Figure 3 A structural schematic diagram of the enlarged view at point A in the middle.

[0026] Reference numerals in the attached diagram: 1. OTDR fiber optic tester; 2. Connector protective cover; 3. Display screen; 4. Button; 5. Rubber damping pad; 6. Rubber limit block; 7. Push block slot; 8. Connector; 9. First limit block slot; 10. Interface protection block; 11. Interface; 12. Push block; 13. Second limit block slot; 14. Limit block; 15. T-shaped block slot; 16. Reset spring. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] Please see Figures 1-4 This utility model provides a technical solution: an optical fiber acoustic wave sensing OTDR pipeline monitoring device, including an OTDR optical fiber tester 1, a display screen 3, a button 4, a connector 8, and an interface 11;

[0032] The OTDR fiber optic tester 1 is equipped with four protective devices.

[0033] The protective device includes a rubber damping pad 5 and a rubber limiting block 6. The rubber damping pad 5 is L-shaped. T-shaped slots 15 are formed on the outer walls of the four corners of the OTDR fiber optic tester 1. The outer walls of the T-shaped blocks on the rubber damping pad 5 are slidably connected to the interior of the corresponding T-shaped slots 15. Two first limiting block slots 9 are formed on the outer walls of both sides of the four T-shaped slots 15. Second limiting block slots 13 are formed on the outer walls of both sides of the T-shaped blocks on the rubber limiting block 6. Limiting blocks 14 are slidably connected inside the two second limiting block slots 13. Push block slots 7 are formed on the outer walls of the T-shaped blocks on the rubber limiting block 6. Two push blocks 12 are slidably connected inside the push block slots 7. The interiors of the two second limiting block slots 13 are... The push block groove 7 is connected to the inside of the push block 12. The ends of the two push blocks 12 near the limiting block 14 are slidably extended into the inside of the second limiting block groove 13, and the outer wall of the limiting block 14 is fixedly connected. The push block groove 7 is provided with three return springs 16. The two ends of the three return springs 16 are fixedly connected to the outer wall of the corresponding push block 12. The ends of the limiting blocks 14 near the first limiting block groove 9 are slidably extended into the inside of the T-shaped block groove 15 and respectively contact the inner wall of the corresponding first limiting block groove 9. The rubber limiting block 6 is installed inside the push block groove 7 and its two outer walls are respectively in contact with the outer wall of the corresponding push block 12. The four limiting devices are set at the four corners of the OTDR fiber optic tester 1.

[0034] The connector 8 is installed on the upper end of the OTDR fiber optic tester 1, and the OTDR fiber optic tester 1 is electrically connected to the connector 8. The interface 11 is installed on the lower end of the OTDR fiber optic tester 1, and the OTDR fiber optic tester 1 is electrically connected to the interface 11. The outer wall of the connector 8 is fitted with a connector protective cover 2. The interface 11 is equipped with an interface protective block 10. The display screen 3 is fixedly installed on the upper outer wall of the OTDR fiber optic tester 1, and the button 4 is installed on the lower outer wall of the OTDR fiber optic tester 1.

[0035] Furthermore, when using the device, it is started by connecting to an external power source. During normal operation, the external optical fiber is connected to the OTDR fiber optic tester 1 via connector 8. The optical signal enters the device for processing. The OTDR fiber optic tester 1 uses its own principle to detect and analyze the optical signal in the optical fiber, transmitting the detected acoustic wave signals along the pipeline and other data to the display screen 3 for display through its internal circuitry. Operators can operate and set the device via buttons 4, such as adjusting monitoring parameters and viewing historical data. Interface 11 can be connected to an external power source to power the device, or it can be connected to a data transmission device to upload monitoring data to other devices for further analysis and storage. The connector protective cover 2 and the interface protective block 10 protect the connector 8 and interface 11 respectively, ensuring the stability and reliability of the device's connection points. Simultaneously, when the fiber optic acoustic wave sensing OTDR pipeline monitoring device is subjected to external vibration, the vibration is transmitted to the OTDR fiber optic tester 1. At this time, the rubber dampers installed at the four corners of the OTDR fiber optic tester 1... The pad 5 plays a crucial role. It possesses both elasticity and viscosity. On one hand, its elasticity allows it to deform under vibration and impact, converting some of the vibration energy into its own elastic potential energy, much like a compressed spring. On the other hand, its viscosity allows the vibration energy to dissipate internally through intermolecular friction, transforming it into heat. Through this elastic deformation and internal dissipation, the rubber damping pad 5 absorbs and buffers vibration energy, reducing the vibration transmitted to the OTDR fiber optic tester 1, thereby protecting the internal precision optical and electronic components, reducing the risk of performance degradation or damage due to vibration, and ensuring stable and reliable operation of the device. When it is necessary to disassemble the rubber damping pad 5, pull the handle on the rubber limit block 6 to remove it from the push block groove 7. Then push the rubber limit block 6 to make the push block 12 slide within the push block groove 7, compressing the reset spring 16 and causing the limit block 14 to retract from the first limit block groove 9 to the second limit block groove 13. At this point, the rubber damping pad 5 loses its limit and can be pulled out of the T-shaped block groove 15, completing the disassembly.

[0036] When the fiber optic acoustic wave sensing OTDR pipeline monitoring device is subjected to external vibration, the vibration is transmitted to the OTDR fiber optic tester 1. At this time, the rubber damping pads 5 installed at the four corners of the OTDR fiber optic tester 1 play a role. They have elasticity and viscosity. Their elasticity allows them to deform when subjected to vibration impact, converting some of the vibration energy into their own elastic potential energy, just like a compressed spring. At the same time, their viscosity allows the vibration energy to be converted into heat energy and dissipated through intermolecular friction inside. Through this elastic deformation and internal dissipation, the rubber damping pads 5 absorb and buffer the vibration energy, reducing the vibration transmitted to the inside of the OTDR fiber optic tester 1, thereby protecting the internal precision optical and electronic components, reducing the risk of performance degradation or damage caused by vibration, and ensuring the stable and reliable operation of the device.

[0037] Structural Description: OTDR Fiber Optic Tester 1: As the core component of the entire device, it is used to realize fiber optic acoustic wave sensing and OTDR pipeline monitoring functions, and is the main body for signal detection, analysis and processing of the entire device;

[0038] Connector Protective Cover 2: The sleeve is on the outer wall of connector 8. Its main function is to protect connector 8 from external dust, moisture and other contamination and physical damage, and to ensure the stability and signal transmission quality when connector 8 is connected to the optical fiber.

[0039] Display screen 3: Fixedly installed on the upper outer wall of OTDR fiber optic tester 1, used to intuitively display various data information monitored by the device, such as the fiber status along the pipeline, acoustic signal strength, fault location and other results, so that the operator can view them.

[0040] Button 4: Installed on the lower outer wall of the OTDR fiber optic tester 1, the operator can press button 4 to input various operation commands for the device, such as start and stop monitoring, set parameters, switch display interfaces, etc.

[0041] Rubber damping pad 5: It is L-shaped, and its T-shaped block outer wall is slidably connected to the T-shaped block groove 15 opened on the four corner outer walls of the OTDR fiber optic tester 1. It mainly plays the role of buffering and shock absorption. When the device is subjected to external vibration, it can absorb vibration energy and reduce the impact of vibration on the precision components inside the OTDR fiber optic tester 1.

[0042] Rubber limiting block 6: The outer walls on both sides of the T-shaped block are provided with second limiting block grooves 13 and push block grooves 7. The rubber limiting block 6 is used to limit the rubber damping pad 5 to prevent it from sliding excessively or detaching in the T-shaped block groove 15 of the OTDR fiber optic tester 1. At the same time, it cooperates with the reset spring 16, push block 12, etc. to realize its own installation and function.

[0043] Connector 8: Installed on the upper end of OTDR fiber optic tester 1, electrically connected to OTDR fiber optic tester 1, used to connect external optical fiber, enabling the device to receive optical signals transmitted from optical fibers along the pipeline, and is the interface component of the optical signal input device.

[0044] Interface protection block 10: Installed inside the interface 11, its function is to protect the interface 11 and prevent dust, debris and other objects from entering the interface, and to prevent the interface 11 from affecting the connection between the device and external equipment and signal transmission due to contamination or short circuit.

[0045] Interface 11: Installed at the lower end of OTDR fiber optic tester 1, electrically connected to OTDR fiber optic tester 1, used to connect external devices, such as power supply equipment, data transmission equipment, etc., to realize the device's power supply and data interaction with the outside.

[0046] Push block 12: Slides inside the push block groove 7, with one end extending into the second limit block groove 13 and fixedly connected to the outer wall of the limit block 14. By sliding inside the push block groove 7, the limit block 14 moves, thereby realizing the extension and retraction of the limit block 14 when installing and removing the rubber damping pad 5.

[0047] Limiting block 14: It slides in the second limiting block groove 13, and one end can slide to the inside of the T-shaped block groove 15 and contact the inner wall of the first limiting block groove 9. It can limit and release the rubber damping pad 5 through its own extension and contraction, thereby realizing the convenient installation and disassembly of the rubber damping pad 5.

[0048] Reset spring 16: It is set inside the push block groove 7, and its two ends are fixedly connected to the outer wall of the corresponding push block 12. It provides reset elastic force for the push block 12. When the push block 12 is pushed by an external force, it can automatically reset under the action of the reset spring 16, thereby driving the limit block 14 to reset, so as to realize the stable limit installation of the rubber damping pad 5.

[0049] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An OTDR pipeline monitoring device with fiber optic acoustic wave sensing, comprising an OTDR fiber optic tester (1), a display screen (3), buttons (4), connectors (8), and interfaces (11), characterized in that: The OTDR fiber optic tester (1) is equipped with four protective devices; The protective device includes a rubber damping pad (5) and a rubber limiting block (6). The outer walls of the four corners of the OTDR fiber optic tester (1) are provided with T-shaped block grooves (15). The outer walls on both sides of the four T-shaped block grooves (15) are provided with two first limiting block grooves (9). The outer walls on both sides of the T-shaped block on the rubber limiting block (6) are provided with second limiting block grooves (13). The two second limiting block grooves (13) are slidably connected to limiting blocks (14). Among them, the outer wall of the T-shaped block on the rubber limiting block (6) is provided with a push block groove (7), and two push blocks (12) are slidably connected inside the push block groove (7). Three reset springs (16) are provided inside the push block groove (7). The rubber limiting block (6) is installed inside the push block groove (7) and its two outer walls are respectively in contact with one side of the outer wall of the corresponding push block (12). The four limiting devices are set at the four corners of the OTDR fiber optic tester (1).

2. The fiber optic acoustic wave sensing OTDR pipeline monitoring device according to claim 1, characterized in that: The rubber damping pad (5) is L-shaped, and the outer wall of the T-shaped block on the rubber damping pad (5) is slidably connected to the inside of the corresponding T-shaped block groove (15); The interiors of the two second limiting block slots (13) are connected to the interiors of the push block slots (7).

3. The fiber optic acoustic wave sensing OTDR pipeline monitoring device according to claim 1, characterized in that: The two push blocks (12) are slidably extended into the interior of the second limit block groove (13) at one end near the limit block (14), and the two ends of three reset springs (16) are fixedly connected to the outer wall of the limit block (14) and respectively fixedly connected to the outer wall of one side of the corresponding push block (12). Among them, the end of the limiting block (14) near the first limiting block groove (9) slides into the interior of the T-shaped block groove (15) and contacts the inner wall of the corresponding first limiting block groove (9).

4. The fiber optic acoustic wave sensing OTDR pipeline monitoring device according to claim 1, characterized in that: The connector (8) is installed on the upper end of the OTDR fiber optic tester (1); Among them, the OTDR fiber optic tester (1) is electrically connected to the connector (8).

5. The fiber optic acoustic wave sensing OTDR pipeline monitoring device according to claim 1, characterized in that: The interface (11) is installed at the lower end of the OTDR fiber optic tester (1); Among them, the OTDR fiber optic tester (1) is electrically connected to the interface (11).

6. The fiber optic acoustic wave sensing OTDR pipeline monitoring device according to claim 1, characterized in that: The outer wall of the connector (8) is fitted with a connector protective cover (2), and the interface (11) is fitted with an interface protective block (10). The display screen (3) is fixedly installed on the upper outer wall of the OTDR fiber optic tester (1), and the button (4) is installed on the lower outer wall of the OTDR fiber optic tester (1).

Images