A pipeline leakage monitoring device based on optical fiber early warning
By setting up settlement monitoring structures and limit structures on oil and gas transportation pipelines and using buried optical fibers to collect and analyze signals, timely early warning and automated monitoring of pipeline settlement and leakage is achieved, and the problem of inefficient monitoring in the existing technology is solved.
Patent Information
- Application Number
- CN202421277856.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The existing technology is difficult to accurately and timely monitor the leakage and settlement of oil and gas transportation pipelines, resulting in difficulty in finding leakage locations and inefficient efficiency.
A pipeline leakage monitoring device based on optical fiber warning is designed. By setting up a settlement monitoring structure and limit structure on the pipeline, and using buried optical fibers to collect and analyze signals, the automated monitoring and early warning functions are realized.
It realizes timely early warning of pipeline settlement and leakage, improves monitoring efficiency, reduces the time to find settlement locations, and realizes 24-hour full-time and all-area automated monitoring.
Smart Images
Figure CN222718013U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil and gas pipeline leakage monitoring equipment, in particular to a pipeline leakage monitoring device based on optical fiber early warning. Background Art
[0002] Oil and gas pipelines pass through different environments during transportation and are easily affected by natural disasters and human factors, which can cause leakage in long-distance pipelines. Once oil and gas leak, it will have a great impact on the environment and people's safety. The safety management of oil and gas pipelines can be achieved through automation technology.
[0003] After years of use, pipelines buried deep underground will sink, leak, or even break due to various environmental factors. However, manual line inspection is inefficient, the cost of deploying cameras is high, it is difficult to get electricity, and the loss is large and difficult to bear. In view of this, we propose a pipeline leakage monitoring device based on optical fiber early warning. Utility Model Content
[0004] In view of the shortcomings of the prior art, the utility model provides a pipeline leakage monitoring device based on optical fiber early warning, which solves the problem that the pipeline cannot be accurately and timely monitored. To achieve the above purpose, the utility model is implemented through the following technical solutions: a pipeline leakage monitoring device based on optical fiber early warning, including a pipeline body, the top of the pipeline body is respectively fixedly connected with two mounting seats, the mounting seats are provided with optical fibers, the monitoring instrument body is arranged above the optical fibers, and a settlement monitoring structure is arranged between the two mounting seats, and the settlement monitoring structure includes an extension block, the extension block is respectively fixedly connected to the adjacent side of the two mounting seats, the inner side of the mounting seat is provided with a limiting groove, the groove wall of the limiting groove is fixedly connected with a spring, the other end of the spring is fixedly connected with a positive electrode sheet, the groove bottom of the limiting groove is fixedly connected with a negative electrode sheet, the inner sides of the two extension blocks are hinged with connecting rods through pin shafts, and one end of the optical fiber passes through the two card slots in sequence.
[0005] Preferably, a limiting structure is arranged between the monitoring instrument body and the mounting seat, and the limiting structure includes a fixing seat, and the fixing seat is fixedly connected to the top of the two mounting seats respectively, and the hypotenuse of the mounting seat is hinged with a limiting block through a pin shaft, and a card slot is provided on a side of the limiting block adjacent to the mounting seat, and the groove wall of the card slot is arranged in cooperation with the optical fiber.
[0006] Preferably, a threaded hole is provided at the top of the limit block, and a threaded groove is provided at the top of the mounting seat. The threaded hole and the groove wall of the threaded groove are both threadedly connected with studs, and a nut is threadedly connected to the surface of the stud. The nut is tightly pressed against the top of the limit block. The threaded installation method is used to firmly install the limit block and the fixing seat, and at the same time, it plays a role in limiting the optical fiber.
[0007] Preferably, an insulating pad is fixedly connected to the groove wall of the card slot, and the card slot abuts against the outer surface of the optical fiber through the insulating pad, and the provided insulating pad can insulate the optical fiber.
[0008] Preferably, the positive electrode sheet and the negative electrode sheet are both in the shape of cylindrical sheets, and the outer edge of the positive electrode sheet contacts and is slidably connected to the groove wall of the limiting groove. The limiting groove is set to limit the positive electrode sheet, so that a closed cavity is formed in the limiting groove. The positive electrode sheet is then used to touch the negative electrode sheet, and then acts on the main body of the monitor, thereby realizing the early warning function of the sedimentation phenomenon, solving the problem of being unable to find the sedimentation position in time, improving the monitoring intensity, reducing the time for finding the sedimentation, and realizing the automated monitoring function.
[0009] Preferably, the optical fiber signal is connected to an optical fiber sensor, the optical fiber sensor signal is connected to a perception algorithm engine, and the perception algorithm engine is respectively connected to a GIS system, a video detection system, and a line patrol system, and utilizes buried optical fibers laid along the medium to collect external event signals, accurately analyze and identify event types.
[0010] Preferably, the optical fiber is used for a vibration frequency range of 0.5Hz-1kHz, the optical fiber is used for a spatial resolution of s2m, the optical fiber sensing distance is 60km, the strain accuracy is ±20με, the optical fiber type is single-mode, and the coverage distance is long; saving investment costs, optical fiber coverage of 50 kilometers, superior to massive point-type sensor development, inherently safe, no application risk; optical medium is used inside the optical fiber, which is inherently safe and has no potential safety hazards; external electrical insulation, not subject to electromagnetic interference, reliable sensing 7x24 hours coverage equipment autonomous online, real-time detection and analysis, to achieve 24-hour full-time, full-area coverage.
[0011] It can be seen from the above technical solutions that the pipeline leakage monitoring device based on optical fiber early warning provided in the embodiments of this specification has at least the following beneficial effects:
[0012] (1) The utility model has a settlement monitoring structure. When the pipeline body settles, the two ends of the connecting rod rotate around the corresponding pin shafts respectively, and one end of the connecting rod squeezes the positive electrode sheet. The limit groove is used to limit the positive electrode sheet, so that a closed cavity is formed in the limit groove. The positive electrode sheet is then used to touch the negative electrode sheet, which then acts on the monitoring instrument body, thereby realizing the early warning function of the settlement phenomenon, solving the problem of being unable to find the settlement position in time, improving the monitoring intensity, reducing the time for finding the settlement, and realizing the automated monitoring function.
[0013] (2) The utility model uses a limit structure to install the limit block and the fixing seat by threaded fastening, and uses the limit groove to limit the optical fiber; uses the buried optical fiber laid along the medium to collect external event signals and accurately analyze and identify the event type. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is an enlarged view of the structure of A in the utility model;
[0017] Figure 3 It is a cross-sectional view of the settlement monitoring structure in the utility model;
[0018] Figure 4 It is a schematic diagram of the limiting structure and optical fiber in the utility model.
[0019] In the figure: 1. pipeline body; 2. optical fiber; 3. settlement monitoring structure; 301. extension block; 302. connecting rod; 303. positive electrode; 304. spring; 305. negative electrode; 4. monitoring instrument body; 5. limiting structure; 501. fixing seat; 502. limiting block; 503. slot; 504. stud; 505. nut; 6. mounting seat. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] Example 1
[0022] See also Figure 1-Figure 3As shown, a pipeline leakage monitoring device based on optical fiber early warning includes a pipeline body 1, the top of the pipeline body 1 is fixedly connected to two mounting seats 6, an optical fiber 2 is arranged on the mounting seat 6, a monitoring instrument body 4 is arranged above the optical fiber 2, a settlement monitoring structure 3 is arranged between the two mounting seats 6, and the settlement monitoring structure 3 includes an extension block 301, the extension block 301 is fixedly connected to one side adjacent to the two mounting seats 6, a limiting groove is provided on the inner side of the mounting seat 6, a spring 304 is fixedly connected to the groove wall of the limiting groove, the other end of the spring 304 is fixedly connected to a positive electrode sheet 303, and a negative electrode sheet 305 is fixedly connected to the groove bottom of the limiting groove. The inner sides of the two extension blocks 301 are both hinged with a connecting rod 302 through a pin shaft, one end of the optical fiber 2 passes through the two card slots 503 in sequence, the positive electrode sheet 303 and the negative electrode sheet 305 are both cylindrical sheets, and the positive electrode sheet 3 The outer edge of 03 contacts and slides with the wall of the limit groove, and the limit groove is set to limit the positive electrode 303, so that a closed cavity is formed in the limit groove, and then the positive electrode 303 is used to touch the negative electrode 305, and then act on the monitoring instrument body 4, realizing the early warning function of the settlement phenomenon, solving the problem of not being able to find the settlement position in time, improving the monitoring intensity, reducing the time for finding the settlement, and realizing the automatic monitoring function. The optical fiber 2 signal is connected to the optical fiber sensor, and the optical fiber sensor signal is connected to the perception algorithm engine. The perception algorithm engine is respectively connected to the GIS system, the video detection system, and the line patrol system. The buried optical fiber laid along the medium is used to collect external event signals, accurately analyze and identify the event type, and the optical fiber 2 is used for the vibration frequency range of 0.5Hz-1kHz, and the optical fiber 2 is used for the spatial resolution of s2 m, optical fiber 2 sensing distance is 60km, strain accuracy is ±20με, optical fiber 2 type is single mode, covering long distance, saving investment cost, optical fiber 2 covers 50 kilometers, which is superior to massive point sensors, intrinsically safe, and has no application risk. Optical fiber 2 uses optical medium inside, which is intrinsically safe and has no accident hazards. It is electrically insulated outside and is not affected by electromagnetic interference. The sensing is reliable 7x24 hours coverage equipment is autonomously online and performs real-time detection and analysis to achieve 24-hour full-time and full-area coverage.
[0023] Furthermore, through the settling monitoring structure 3, when the pipeline main body 1 settles, the two ends of the connecting rod 302 rotate around the corresponding pin shafts respectively, and one end of the connecting rod 302 squeezes the positive electrode sheet 303, and the set limiting groove is used to limit the positive electrode sheet 303, so that a closed cavity is formed in the limiting groove, and then the positive electrode sheet 303 is used to touch the negative electrode sheet 305, and then act on the monitoring instrument main body 4, thereby realizing the early warning function of the settlement phenomenon, solving the problem of being unable to find the settlement position in time, improving the monitoring intensity, reducing the time for finding the settlement, and realizing the automated monitoring function.
[0024] Example 2
[0025] See also Figure 4 As shown, a limiting structure 5 is arranged between the monitor body 4 and the mounting seat 6, and the limiting structure 5 includes a fixing seat 501, and the fixing seat 501 is fixedly connected to the top of the two mounting seats 6 respectively. The hypotenuse of the mounting seat 6 is hinged to the limiting block 502 through a pin shaft, and a slot 503 is provided on the side adjacent to the fixing seat 6. The slot wall of the slot 503 is arranged in cooperation with the optical fiber 2, and a threaded hole is provided on the top of the limiting block 502, and a threaded groove is provided on the top of the mounting seat 6. The threaded hole and the slot wall of the threaded groove are both threadedly connected with a stud 504, and a nut 505 is threadedly connected to the surface of the stud 504, and the nut 505 is tightly abutted against the top of the limiting block 502. Through the threaded installation method, the limiting block 502 and the fixing seat 501 are firmly installed, and at the same time, the optical fiber 2 is limited. The slot wall of the slot 503 is fixedly connected with an insulating pad, and the slot 503 abuts against the outer surface of the optical fiber 2 through the insulating pad, and the optical fiber 2 can be insulated by the provided insulating pad.
[0026] Furthermore, by setting a limiting structure 5, the limiting block 502 and the fixing seat 501 are installed by adopting a threaded fastening installation method, and the opened limiting groove is used to limit the optical fiber 2; the buried optical fiber 2 laid along the medium is used to collect external event signals, and the event type is accurately analyzed and identified.
[0027] The utility model is a pipeline leakage monitoring device based on optical fiber early warning. When in use, the buried optical fiber 2 laid along the medium is used to collect external event signals, accurately analyze and identify the event type, such as gasoline explosion, pipeline leakage, illegal intrusion, construction damage; when one end of the pipeline body 1 sinks, the two ends of the connecting rod 302 rotate around the corresponding pin shaft respectively, and one end of the connecting rod 302 squeezes the positive electrode sheet 303, and the positive electrode sheet 303 is limited by the set limiting groove, so that a closed cavity is formed in the limiting groove, and then the positive electrode sheet 303 is used to touch the negative electrode sheet 305, and then act on the monitoring instrument body 4, so as to realize the early warning of the sinking phenomenon. The function solves the problem of not being able to find the settlement position in time, improves the monitoring intensity, reduces the time for finding the settlement, and realizes the automated monitoring function; uses the buried optical fiber 2 laid along the medium to collect external event signals, accurately analyze and identify the event type, and in the early stage of laying the optical fiber 2, the nut 505 above the pipeline body 1 can be removed from the stud 504, and then the stud 504 can be removed from the threaded hole and the threaded groove, and the limit block 502 is opened around the pin shaft. The surface of the optical fiber 2 is located between the two card grooves 503, and then the limit block 502 and the fixing seat 501 are installed by a threaded fastening installation method, and the limit groove plays a role in limiting the optical fiber 2.
[0028] The above implementation methods are only used to illustrate the embodiments of the present utility model, and are not limitations of the embodiments of the present utility model. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present utility model. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present utility model. The patent protection scope of the embodiments of the present utility model should be limited by the claims.
Claims
1. A pipeline leakage monitoring device based on optical fiber early warning, comprising a pipeline body (1), characterized in that: Two mounting seats (6) are fixedly connected to the top of the pipeline body (1), an optical fiber (2) is arranged on the mounting seat (6), a monitoring instrument body (4) is arranged above the optical fiber (2), a settlement monitoring structure (3) is arranged between the two mounting seats (6), and the settlement monitoring structure (3) comprises an extension block (301), the extension block (301) is fixedly connected to the adjacent side of the two mounting seats (6), a limiting groove is provided on the inner side of the mounting seat (6), a spring (304) is fixedly connected to the groove wall of the limiting groove, the other end of the spring (304) is fixedly connected to the positive electrode sheet (303), and the groove bottom of the limiting groove is fixedly connected to the negative electrode sheet (305), the inner sides of the two extension blocks (301) are hinged with connecting rods (302) through pin shafts, and one end of the optical fiber (2) passes through the two card slots (503) in sequence.
2. According to claim 1, a pipeline leakage monitoring device based on optical fiber early warning is characterized in that: A limiting structure (5) is arranged between the monitoring instrument body (4) and the mounting seat (6), and the limiting structure (5) includes a fixing seat (501), and the fixing seat (501) is fixedly connected to the top of the two mounting seats (6) respectively. The hypotenuse of the mounting seat (6) is hinged to a limiting block (502) through a pin shaft, and a groove (503) is provided on a side of the limiting block (502) adjacent to the mounting seat (6), and the groove wall of the groove (503) is arranged in cooperation with the optical fiber (2).
3. The pipeline leakage monitoring device based on optical fiber early warning according to claim 2 is characterized in that: A threaded hole is provided at the top of the limit block (502), a threaded groove is provided at the top of the mounting seat (6), a stud (504) is threadedly connected to the groove wall of the threaded hole and the groove, a nut (505) is threadedly connected to the surface of the stud (504), and the nut (505) is tightly pressed against the top of the limit block (502).
4. The pipeline leakage monitoring device based on optical fiber early warning according to claim 2 is characterized in that: An insulating pad is fixedly connected to the groove wall of the clamping groove (503), and the clamping groove (503) abuts against the outer surface of the optical fiber (2) via the insulating pad.
5. The pipeline leakage monitoring device based on optical fiber early warning according to claim 1 is characterized in that: The positive electrode sheet (303) and the negative electrode sheet (305) are both in the form of cylindrical sheets, and the outer edge of the positive electrode sheet (303) is in contact with the groove wall of the limiting groove and is slidably connected thereto.
6. The pipeline leakage monitoring device based on optical fiber early warning according to claim 1 is characterized in that: The optical fiber (2) is signal-connected to an optical fiber sensor, the optical fiber sensor is signal-connected to a perception algorithm engine, and the perception algorithm engine is signal-connected to a GIS system, a video detection system, and a line patrol system.
7. The pipeline leakage monitoring device based on optical fiber early warning according to claim 1 is characterized in that: The optical fiber (2) is used for a vibration frequency range of 0.5 Hz-1 kHz, the optical fiber (2) is used for a spatial resolution of s2 m, the optical fiber (2) has a sensing distance of 60 km, a strain accuracy of ±20 με, and the optical fiber (2) is single-mode.