Multi-parameter optical fiber pipeline safety monitoring device

Abstract

The utility model discloses a multi-parameter optical fiber pipeline safety monitoring device relates to monitoring technical field. Multi-parameter optical fiber pipeline safety monitoring device, including optical fiber host computer and monitoring optical fiber, monitoring optical fiber spiral winding is on the pipeline main part, and the optical fiber fixed structure is located on the pipeline main part, and the optical fiber fixed structure includes a plurality of bolts, positioning plate no.

Description

Technical Field

[0001] This utility model relates to the field of monitoring technology, and in particular to a multi-parameter fiber optic pipeline safety monitoring device. Background Technology

[0002] In the field of safety monitoring of industrial pipelines such as oil, natural gas, chemicals, heating, and phosphogypsum, real-time perception and location of safety hazards such as pipeline leaks, structural damage, and illegal intrusion are core requirements for ensuring production safety and environmental protection.

[0003] When existing multi-parameter optical fibers are wound around the outside of pipes for monitoring, the installation of the optical fibers on the outside of the pipe is mostly done by binding with cable ties or adhesive. When the pipe expands and contracts due to temperature changes, the optical fiber is prone to slippage. When the optical fiber is bound to the pipe surface by cable ties, the difference in axial expansion and contraction rates between the optical fiber and the pipe due to temperature changes will cause shear stress at the cable tie, which will then cause the optical fiber to slip axially in the gap of the cable tie. Adhesive residue may contaminate the pipe surface, and the residual adhesive layer is difficult to remove when the optical fiber is replaced, which increases the difficulty of secondary construction. Therefore, we propose a multi-parameter optical fiber pipe safety monitoring device. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a multi-parameter fiber optic pipeline safety monitoring device. This device can solve the problem that when monitoring multi-parameter fiber optic cables are wound around the outside of the pipeline, the fiber optic cables are often installed on the outside of the pipeline by binding or bonding them with cable ties. When the pipeline expands or contracts due to temperature changes, the difference in axial expansion and contraction rates between the fiber optic cable and the pipeline will cause shear stress at the cable tie, which will then cause the fiber optic cable to slip axially in the gap of the cable tie. Adhesive residue may contaminate the pipeline surface, and when the fiber optic cable is replaced, the residual adhesive layer is difficult to remove, increasing the difficulty of secondary construction.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-parameter fiber optic pipeline safety monitoring device, comprising:

[0006] The fiber optic host and monitoring fiber optic cable are spirally wound around the main body of the pipe.

[0007] The optical fiber fixing structure is located on the main body of the pipe.

[0008] The fiber optic fixing structure includes multiple bolts, positioning plate one, and positioning plate two. Two connecting plates are fixedly connected to the outer surfaces of positioning plate one and positioning plate two. Two through holes are opened on each of the four connecting plates. Multiple bolts pass through the corresponding two through holes. Positioning plate one is fixedly installed on positioning plate two by multiple bolts. Positioning plate one and positioning plate two are both fitted onto the outer surface of the pipe body. Positioning plate one has a positioning groove inside, and the monitoring fiber is located inside the positioning groove.

[0009] Preferably, both the first positioning plate and the second positioning plate are fixedly connected to an anti-slip pad, and a through groove is provided on the anti-slip pad near the first positioning plate, which communicates with the interior of the positioning groove.

[0010] Preferably, the anti-slip mat is made of rubber.

[0011] Preferably, the second positioning plate has two mating grooves on the side near the first positioning plate, and the first positioning plate has two mating strips fixedly connected to the side near the second positioning plate, with both mating strips inserting into the corresponding mating grooves.

[0012] Preferably, both of the connecting strips are made of rubber.

[0013] Preferably, a connecting optical fiber is fixedly connected to the optical fiber host, and the end of the connecting optical fiber away from the optical fiber host is fixedly connected to the end of the monitoring optical fiber.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This multi-parameter fiber optic pipeline safety monitoring device has two positioning plates, Positioning Plate 1 and Positioning Plate 2, which are bolted to the outer surface of the pipeline body. The internal rubber anti-slip pads are tightly fitted to the pipeline to increase friction and prevent the optical fiber from slipping due to pipeline deformation or external impact, thus ensuring the stability of the optical fiber path. The positioning groove and the through groove together constrain the spiral path of the optical fiber, ensuring stable contact between the optical fiber and the pipeline surface. The combined structure of Positioning Plate 1 and Positioning Plate 2 facilitates quick assembly and disassembly, is suitable for the renovation and upgrading of existing pipelines, and does not require complicated tools, reducing construction difficulty. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the positioning plate structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the positioning plate two structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the anti-slip mat structure of this utility model.

[0021] Attached reference numerals: 1. Pipe body; 2. Fiber optic host; 3. Connecting fiber optic cable; 4. Monitoring fiber optic cable; 5. Positioning plate one; 6. Positioning plate two; 7. Anti-slip pad; 8. Connecting plate; 9. Bolt; 10. Through hole; 11. Butt groove; 12. Butt strip; 13. Positioning groove; 14. Through groove. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a multi-parameter fiber optic pipeline safety monitoring device, comprising:

[0027] The fiber optic host 2 and the monitoring fiber 4 are spirally wound around the pipe body 1;

[0028] The optical fiber fixing structure is located on the main body of the pipe 1;

[0029] The fiber optic fixing structure includes multiple bolts 9, positioning plate one 5, and positioning plate two 6. Two connecting plates 8 are fixedly connected to the outer surfaces of positioning plate one 5 and positioning plate two 6. Two through holes 10 are opened on each of the four connecting plates 8. Multiple bolts 9 pass through the corresponding two through holes 10. Positioning plate one 5 is fixedly installed on positioning plate two 6 by multiple bolts 9. Positioning plate one 5 and positioning plate two 6 are both fitted onto the outer surface of the pipe body 1. Positioning groove 13 is opened inside the positioning plate one 5, and the monitoring fiber optic 4 is located inside the positioning groove 13.

[0030] Both positioning plate 5 and positioning plate 6 have anti-slip pads 7 fixedly connected inside. The anti-slip pad 7 near positioning plate 5 has a through groove 14, which is connected to the inside of positioning groove 13. The anti-slip pad 7 is made of rubber.

[0031] The second positioning plate 6 has two docking slots 11 on the side near the first positioning plate 5. The first positioning plate 5 is fixedly connected to two docking strips 12 on the side near the second positioning plate 6. Both docking strips 12 are inserted into the corresponding docking slots 11. Both docking strips 12 are made of rubber. The fiber optic host 2 is fixedly connected to a connecting fiber optic cable 3. The end of the connecting fiber optic cable 3 away from the fiber optic host 2 is fixedly connected to the end of the monitoring fiber optic cable 4.

[0032] Furthermore, when using the device, the monitoring optical fiber 4 is wound in a spiral shape around the outer surface of the pipe body 1. Through distributed optical fiber sensing technology, it synchronously senses the changes in multiple parameters such as temperature, strain, and vibration along the pipe. The optical fiber host 2 is connected to the monitoring optical fiber 4 through the connecting optical fiber 3, transmits and receives optical signals, analyzes the intensity, phase, wavelength or frequency shift characteristics of the optical signals, and demodulates the temperature distribution, strain gradient or vibration frequency at different locations in the pipe.

[0033] Positioning plate 5 and positioning plate 6 are fixedly mounted on the outer surface of the pipe body 1 by bolts 9. The rubber anti-slip pads 7 inside are tightly attached to the pipe surface to increase friction and prevent the optical fiber from slipping due to thermal expansion and contraction of the pipe or external impact. Positioning groove 13 and through groove 14 together constrain the spiral path of the monitoring optical fiber 4 to ensure that the optical fiber maintains stable contact with the pipe surface. At the same time, it allows the optical fiber to have a certain redundant length in the axial and circumferential directions to buffer displacement caused by thermal stress or vibration. The plugging structure of rubber mating strip 12 and mating groove 11 further enhances the connection stability of positioning plate 5 and positioning plate 6.

[0034] Positioning plate 5 and positioning plate 6 are fitted onto the outer surface of the pipe body 1 by bolts 9. The rubber anti-slip pads 7 inside are tightly fitted to the pipe to increase friction and prevent the monitoring optical fiber 4 from slipping due to pipe deformation or external impact, thus ensuring the stability of the optical fiber path. The positioning groove 13 and the through groove 14 together constrain the spiral path of the monitoring optical fiber 4, ensuring stable contact between the optical fiber and the pipe surface. The combined structure of positioning plate 5 and positioning plate 6 facilitates quick assembly and disassembly, is suitable for the renovation and upgrading of existing pipes, and does not require complicated tools, reducing construction difficulty.

[0035] Structural Description: Pipeline Body 1: Serves as the carrier of the transport medium, provides the installation foundation for the monitoring optical fiber 4, and is the monitoring object;

[0036] Fiber Optic Host 2: Transmits and receives optical signals, analyzes the intensity, phase, wavelength or frequency shift characteristics of the optical signals, and demodulates the temperature distribution, strain gradient or vibration frequency at different locations in the pipeline. It is the core control and signal processing equipment of the monitoring system.

[0037] Fiber optic cable 3: connects fiber optic host 2 and monitoring fiber optic cable 4 to realize the transmission of optical signals;

[0038] Monitoring fiber optic 4: It is wound in a spiral shape around the outer surface of the main body of the pipeline 1, and synchronously senses the changes of multiple parameters such as temperature, strain, and vibration along the pipeline through distributed optical fiber sensing technology;

[0039] Positioning plate 1 5: It cooperates with positioning plate 2 6 and is fixedly fitted to the outer surface of the pipe body 1 by bolts 9. A positioning groove 13 is opened inside to constrain the spiral path of the monitoring optical fiber 4.

[0040] Positioning plate 2 6: It works in conjunction with positioning plate 1 5 and is fixedly mounted on the outer surface of the pipe body 1 by bolts 9, together with positioning plate 1 5, to form the main part of the optical fiber fixing structure;

[0041] Anti-slip pad 7: It is fixedly connected inside the positioning plate 5 and the positioning plate 6. It is made of rubber and fits tightly against the surface of the pipe to increase friction and prevent the optical fiber from slipping due to thermal expansion and contraction of the pipe or external impact.

[0042] Connecting plate 8: It is fixedly connected to the outer surface of positioning plate 5 and positioning plate 6 respectively. Each positioning plate has two connecting plates for opening through holes 10. The fixed connection between positioning plate 5 and positioning plate 6 is achieved by bolts 9.

[0043] Bolt 9: Passes through the through hole 10 on the connecting plate 8 to fix the positioning plate 5 and the positioning plate 6 together.

[0044] Through hole 10: It is formed on the connecting plate 8 for the bolt 9 to pass through, so as to connect the positioning plate 1 5 and the positioning plate 2 6;

[0045] Dating groove 11: It is opened on the side of positioning plate 2 6 near positioning plate 1 5, and cooperates with the docking strip 12 to enhance the connection stability between positioning plate 1 5 and positioning plate 2 6.

[0046] The mating strip 12 is fixedly connected to the side of the positioning plate 1 5 near the positioning plate 2 6. It is made of rubber and is inserted into the mating groove 11 to enhance the connection stability between the positioning plate 1 5 and the positioning plate 2 6.

[0047] Positioning groove 13: It is formed inside the positioning plate 5 and together with the through groove 14, it constrains the spiral path of the monitoring optical fiber 4 to ensure that the optical fiber maintains stable contact with the pipe surface.

[0048] Through groove 14: It is opened on the anti-slip pad 7 near the positioning plate 5 and communicates with the interior of the positioning groove 13. Together they constrain the spiral path of the monitoring optical fiber 4, while allowing the optical fiber to have a certain redundant length in the axial and circumferential directions to buffer displacement caused by thermal stress or vibration.

[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. A multi-parameter fiber optic pipeline safety monitoring device, characterized in that, include: The fiber optic host (2) and the monitoring fiber (4) are spirally wound around the main body of the pipe (1); The optical fiber fixing structure is located on the main body of the pipe (1); The fiber optic fixing structure includes multiple bolts (9), positioning plate one (5) and positioning plate two (6). Two connecting plates (8) are fixedly connected to the outer surfaces of positioning plate one (5) and positioning plate two (6). Two through holes (10) are opened on each of the four connecting plates (8). Multiple bolts (9) pass through the corresponding two through holes (10). Among them, positioning plate one (5) is fixedly installed on positioning plate two (6) by multiple bolts (9). Positioning plate one (5) and positioning plate two (6) are both fitted on the outer surface of the pipe body (1). Positioning groove (13) is opened inside the positioning plate one (5), and the monitoring optical fiber (4) is located inside the positioning groove (13).

2. The multi-parameter fiber optic pipeline safety monitoring device according to claim 1, characterized in that: The anti-slip pads (7) are fixedly connected inside both the positioning plate one (5) and the positioning plate two (6). A through groove (14) is opened on the anti-slip pad (7) near the positioning plate one (5), and the through groove (14) is connected to the inside of the positioning groove (13).

3. The multi-parameter fiber optic pipeline safety monitoring device according to claim 2, characterized in that: The anti-slip mat (7) is made of rubber.

4. The multi-parameter fiber optic pipeline safety monitoring device according to claim 1, characterized in that: The second positioning plate (6) has two docking slots (11) on the side near the first positioning plate (5). The first positioning plate (5) has two docking strips (12) fixedly connected to the side near the second positioning plate (6). Both docking strips (12) are inserted into the corresponding docking slots (11).

5. The multi-parameter fiber optic pipeline safety monitoring device according to claim 4, characterized in that: Both of the aforementioned mating strips (12) are made of rubber.

6. The multi-parameter fiber optic pipeline safety monitoring device according to claim 1, characterized in that: A connecting fiber (3) is fixedly connected to the fiber optic host (2), and the end of the connecting fiber (3) away from the fiber optic host (2) is fixedly connected to the end of the monitoring fiber (4).

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