Distributed optical fiber temperature measurement early warning bus

Abstract

The utility model discloses a distributed optical fiber temperature measurement early warning bus, which belongs to the technical field of optical fiber temperature measurement and comprises a bus duct, a bus bar connecting point arranged on the bus duct, a temperature sensing optical fiber laid in an inner cavity of the bus duct, an optical fiber positioning assembly arranged in the inner cavity of the bus duct, and a coil assembly arranged on the upper surface of the bus bar connecting point. The temperature sensing optical fiber is wound on the winding reel, the movable sleeve cover covers the wound temperature sensing optical fiber for protection, and the movable sleeve cover can change the height of the movable sleeve cover by pulling the spring to extend upwards, so that an operator can conveniently wind more circles of temperature sensing optical fiber on the winding reel, and different requirements are met; meanwhile, the spring can provide certain elastic force, the movable sleeve cover is automatically pulled downwards to tightly extrude and fix the temperature sensing optical fiber to the busbar connection point, the winding reel is fixed to the busbar connection point through all-purpose glue, and an operator can flexibly disassemble the temperature sensing optical fiber according to requirements; and compared with a traditional ribbon fixing mode, the method is simpler and more convenient and can be repeatedly used.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber temperature measurement, and more specifically, to a distributed optical fiber temperature measurement early warning bus. Background Art

[0002] The fiber optic temperature measurement and early warning bus is a system that uses fiber optic sensing technology to monitor the temperature of the power bus and issue an early warning when the temperature exceeds the safety threshold. This system combines advanced fiber optic sensing technology and data processing technology to provide reliable temperature monitoring and early warning functions in the power system. It uses optical fiber as a sensor and can detect temperature changes at any position along the length of the optical fiber, which is very important for preventing safety accidents caused by overheating.

[0003] Existing early warning bus systems typically consist of a distributed temperature sensing system (DTS host), temperature-sensing optical fiber, a data acquisition and processing unit, and an alarm system. When light pulses propagate through the optical fiber, due to the molecular vibrations of the optical fiber material, some photons will undergo inelastic collisions with electrons, resulting in energy transfer and a change in the frequency of the light. This change can be used to measure temperature, monitor the temperature status of the bus in real time, and issue an early warning when necessary, thereby achieving effective management and control of the bus temperature.

[0004] In actual use of the existing technology, when laying temperature-sensitive optical fibers, a section of optical fiber is usually coiled in a specific area to increase the temperature resolution and monitoring density of the area. Since the temperature-sensitive optical fibers are usually fixed with cable ties or binding wires when coiling, it is troublesome to remove the cable ties or binding wires when adjusting the position of the optical fibers or rewiring, and the removed cable ties usually cannot be reused, which increases maintenance costs. Therefore, a distributed optical fiber temperature measurement and early warning bus is proposed. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In response to the problems existing in the prior art, the utility model provides a distributed optical fiber temperature measurement and early warning busbar, which winds the temperature-sensitive optical fiber on a winding drum and protects the coiled temperature-sensitive optical fiber with a movable sleeve cover. The movable sleeve cover can change its height by pulling the spring to extend upward, so that the operator can wind more turns of temperature-sensitive optical fiber on the winding drum to meet different needs. At the same time, the spring can provide a certain elastic force, automatically pulling the movable sleeve cover downward to tightly squeeze the temperature-sensitive optical fiber and fix it on the busbar connection point. The winding drum is fixed to the busbar connection point by universal glue, and the operator can flexibly disassemble it according to needs. Compared with the traditional cable tie fixing method, it is simpler and more reusable.

[0007] 2. Technical solution

[0008] In order to solve the above problems, the present invention adopts the following technical solutions.

[0009] A distributed optical fiber temperature measurement and early warning busbar comprises a busbar trough, a busbar connection point is provided on the busbar trough, a temperature-sensitive optical fiber is laid in the inner cavity of the busbar trough, an optical fiber positioning assembly is provided in the inner cavity of the busbar trough, and a coil assembly is provided on the upper surface of the busbar connection point; the optical fiber positioning assembly comprises a T-slot symmetrically provided on both sides of the inner cavity of the busbar trough, a slider is slidably connected to the inner cavity of the T-slot, a moving block is movably connected to the inner cavity of the slider, a plurality of spring telescopic rods are fixedly connected to the upper surface of the moving block, and an optical fiber positioning plate is fixedly connected to the lower surface of the moving block; the coil assembly comprises a winding drum fixedly connected to the upper surface of the busbar connection point, a moving sleeve cover is slidably connected to the inner cavity of the winding drum, a spring is fixedly connected to the bottom of the inner cavity of the moving sleeve cover, and two limit plates are symmetrically and movably connected to the lower surface of the moving sleeve cover.

[0010] Furthermore, an optical fiber temperature measurement host body is provided at one end of the temperature-sensing optical fiber, and an upper end of the spring telescopic rod is fixedly connected to the top of the inner cavity of the slider.

[0011] Furthermore, the middle portion of the optical fiber positioning plate is in an arc-shaped convex shape, the temperature-sensitive optical fiber is located inside the arc-shaped convex shape of the optical fiber positioning plate, and a rubber pad is fixedly connected to the lower surface of the optical fiber positioning plate.

[0012] Furthermore, the winding drum is fixed to the busbar connection point by means of universal glue, the temperature-sensitive optical fiber is coiled on the outer surface of the winding drum, and the upper end of the spring is fixedly connected to the top of the inner cavity of the winding drum.

[0013] Furthermore, a circular arc opening is provided on the lower surface of the limiting plate, and the temperature-sensing optical fiber is located inside the circular arc opening of the limiting plate.

[0014] Furthermore, a second spring telescopic rod is fixedly connected to the bottom of the inner cavity of the limiting plate, and the upper end of the second spring telescopic rod is fixedly connected to the movable sleeve cover.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) This solution installs a slider inside the T-slot and adjusts its position by sliding it inside the T-slot to locate the different positions of the temperature-sensitive optical fiber. The spring telescopic rod provides a certain elastic force to help the optical fiber positioning plate squeeze the temperature-sensitive optical fiber into the bus duct and increase the friction between the optical fiber positioning plate and the bus duct to prevent the optical fiber positioning plate from moving around randomly inside the bus duct. The optical fiber positioning plate protects the outer surface of the temperature-sensitive optical fiber with a rubber pad to avoid wear or damage. This fixing method is convenient for regular inspection and maintenance. If the optical fiber position needs to be adjusted or replaced, it can be easily completed by sliding the slider without rewiring or removing other components.

[0018] (2) This solution winds the temperature-sensitive optical fiber on a winding drum and protects the wound temperature-sensitive optical fiber by covering it with a movable sleeve cover. The movable sleeve cover can change its height by pulling the spring upward to extend it, so that the operator can wind more turns of the temperature-sensitive optical fiber on the winding drum to meet different needs. At the same time, the spring can provide a certain elastic force to automatically pull the movable sleeve cover downward to tightly squeeze the temperature-sensitive optical fiber and fix it on the busbar connection point. The winding drum is fixed to the busbar connection point by universal glue, and the operator can flexibly disassemble it according to needs. Compared with the traditional cable tie fixing method, it is simpler and more reusable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the partial structure of the utility model when viewed from above;

[0022] Figure 4 This is a schematic diagram of the partial structure of the utility model;

[0023] Figure 5 This is a partial structural breakdown diagram of the utility model;

[0024] Figure 6 It is a schematic cross-sectional view of the local structure of the utility model.

[0025] Description of the numbers in the figure:

[0026] 1. Bus duct; 101. Busbar connection point; 2. Temperature-sensing optical fiber; 201. Fiber optic temperature measurement host body; 3. Fiber optic positioning assembly; 301. T-slot; 302. Slider; 303. Moving block; 304. Spring telescopic rod 1; 305. Fiber optic positioning plate; 306. Rubber pad; 4. Coil assembly; 401. Winding reel; 402. Moving sleeve cover; 403. Spring; 404. Spring telescopic rod 2; 405. Limit plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0030] Example 1

[0031] Reference Figure 1 、 Figure 2 and Figure 4 , which is the first embodiment of the utility model, and provides a distributed optical fiber temperature measurement and early warning bus, including a bus duct 1, characterized in that: a busbar connection point 101 is provided on the bus duct 1, a temperature-sensitive optical fiber 2 is laid in the inner cavity of the bus duct 1, and an optical fiber positioning component 3 is provided in the inner cavity of the bus duct 1, including T-slots 301 symmetrically opened on both sides of the inner cavity of the bus duct 1, a slider 302 is slidably connected to the inner cavity of the T-slot 301, a moving block 303 is movably connected to the inner cavity of the slider 302, a plurality of spring telescopic rods 304 are fixedly connected to the upper surface of the moving block 303, and an optical fiber positioning plate 305 is fixedly connected to the lower surface of the moving block 303.

[0032] Specifically, an optical fiber temperature measurement host body 201 is provided at one end of the temperature-sensing optical fiber 2, the upper end of the spring telescopic rod 304 is fixedly connected to the top of the inner cavity of the slider 302, the middle position of the optical fiber positioning plate 305 is an arc-shaped convex shape, the temperature-sensing optical fiber 2 is located inside the arc-shaped convex shape of the optical fiber positioning plate 305, and the lower surface of the optical fiber positioning plate 305 is fixedly connected to a rubber pad 306.

[0033] Furthermore, the temperature-sensitive optical fiber 2 is laid inside the bus duct 1, which can detect temperature changes in real time. The bus duct 1 is a high-current conductor used to transmit electricity and is usually made of metal, such as copper or aluminum. The busbar connection point 101 is the connection part between the busbar sections in the bus duct 1. It is a key node for power transmission and can detect temperature changes in real time. The optical fiber temperature measurement host body 201 is the central processing unit, which is responsible for receiving the temperature data transmitted by the temperature-sensitive optical fiber and performing processing and analysis.

[0034] The slider 302 is slidably installed inside the T-slot 301, and the position is adjusted by sliding in the T-slot 301 to position the temperature-sensitive optical fiber 2 at different positions. The spring telescopic rod 304 provides a certain elastic force to help the optical fiber positioning plate 305 squeeze and fix the temperature-sensitive optical fiber 2 in the bus duct 1, and at the same time increase the friction between the optical fiber positioning plate 305 and the bus duct to prevent the optical fiber positioning plate 305 from moving freely in the bus duct 1. The optical fiber positioning plate 305 protects the outer surface of the temperature-sensitive optical fiber 2 through the rubber pad 306 to avoid wear or damage. At the same time, the rubber pad 306 can also increase a certain friction.

[0035] Example 2

[0036] Reference Figure 1 、 Figure 3 、 Figure 5 and Figure 6 , which is the second embodiment of the present utility model. This embodiment is based on the previous embodiment. A coil assembly 4 is provided on the upper surface of the busbar connection point 101, including a winding drum 401 fixedly connected to the upper surface of the busbar connection point 101, a movable sleeve cover 402 is slidably connected to the inner cavity of the winding drum 401, a spring 403 is fixedly connected to the bottom of the inner cavity of the movable sleeve cover 402, and two limit plates 405 are symmetrically and movably connected to the lower surface of the movable sleeve cover 402.

[0037] Specifically, the winding drum 401 is fixed to the busbar connection point 101 by means of universal glue, the temperature-sensitive optical fiber 2 is coiled on the outer surface of the winding drum 401, the upper end of the spring 403 is fixedly connected to the top of the inner cavity of the winding drum 401, and a circular arc-shaped opening is provided on the lower surface of the limiting plate 405. The temperature-sensitive optical fiber 2 is located inside the circular arc-shaped opening of the limiting plate 405. A spring telescopic rod 2 404 is fixedly connected to the bottom of the inner cavity of the limiting plate 405, and the upper end of the spring telescopic rod 2 404 is fixedly connected to the movable sleeve cover 402.

[0038] Furthermore, the temperature-sensitive optical fiber 2 is wound on the winding drum 401 to keep it neat and orderly. At this time, the movable sleeve cover 402 covers the upper surface of the coiled temperature-sensitive optical fiber 2 to protect the temperature-sensitive optical fiber 2. The movable sleeve cover 402 can change its height by pulling the spring 403 to extend upward, thereby making it easier for the operator to wind more turns of the temperature-sensitive optical fiber 2 on the winding drum 401 to meet different needs.

[0039] At the same time, the spring 403 can provide a certain elastic force, automatically pulling the movable sleeve cover 402 downward to tightly squeeze and fix the temperature-sensitive optical fiber 2 on the busbar connection point 101, and the position of the two ends of the temperature-sensitive optical fiber 2 is limited by the limit plate 405. When the height of the movable sleeve cover 402 changes, the elastic force of the spring telescopic rod 404 itself automatically pushes the limit plate 405 downward to limit and fix the temperature-sensitive optical fiber 2 on the busbar connection point 101. The winding drum 401 is fixed to the busbar connection point 101 by universal glue, and the operator can flexibly disassemble it according to needs.

[0040] Working principle: During the use of the device, the temperature-sensitive optical fiber 2 is laid inside the bus duct 1, and then the slider 302 is slidably installed inside the T-slot 301. By sliding and adjusting the position in the T-slot 301, the temperature-sensitive optical fiber 2 is positioned at different positions, and a certain elastic force is provided by the spring telescopic rod 304 to help the optical fiber positioning plate 305 squeeze the temperature-sensitive optical fiber 2 into the bus duct 1, and at the same time increase the friction between the optical fiber positioning plate 305 and the bus duct to prevent the optical fiber positioning plate 305 from moving freely in the bus duct 1. The optical fiber positioning plate 305 protects the outer surface of the temperature-sensitive optical fiber 2 through the rubber pad 306 to avoid wear or damage. At the same time, the rubber pad 306 can also increase a certain friction. The operator winds the temperature-sensitive optical fiber 2 on the winding drum 401 to keep it neat and orderly. At this time, the movable sleeve cover 402 covers the coiled The upper surface of the temperature-sensitive optical fiber 2 protects the temperature-sensitive optical fiber 2. The movable sleeve cover 402 can change its height by extending upward by pulling the spring 403, so that the operator can wind more turns of the temperature-sensitive optical fiber 2 on the winding drum 401 to meet different needs. At the same time, the spring 403 can provide a certain elastic force, automatically pulling the movable sleeve cover 402 downward to tightly squeeze and fix the temperature-sensitive optical fiber 2 on the busbar connection point 101, and limiting the position of the two ends of the temperature-sensitive optical fiber 2 by the limit plate 405. When the height of the movable sleeve cover 402 changes, the elastic force of the spring telescopic rod 404 itself automatically pushes the limit plate 405 downward to limit and fix the temperature-sensitive optical fiber 2 on the busbar connection point 101. The winding drum 401 is fixed to the busbar connection point 101 by universal glue, and the operator can flexibly disassemble it according to needs.

[0041] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A distributed optical fiber temperature measurement and early warning bus, comprising a bus duct (1), characterized in that: The bus duct (1) is provided with a busbar connection point (101), a temperature-sensitive optical fiber (2) is laid in the inner cavity of the bus duct (1), an optical fiber positioning component (3) is opened in the inner cavity of the bus duct (1), and a coil component (4) is provided on the upper surface of the busbar connection point (101); The optical fiber positioning assembly (3) comprises T-slots (301) symmetrically arranged on both sides of the inner cavity of the busbar duct (1); a slider (302) is slidably connected to the inner cavity of the T-slot (301); a moving block (303) is movably connected to the inner cavity of the slider (302); a plurality of spring telescopic rods (304) are fixedly connected to the upper surface of the moving block (303); and an optical fiber positioning plate (305) is fixedly connected to the lower surface of the moving block (303); The coil assembly (4) comprises a winding drum (401) fixedly connected to the upper surface of the busbar connection point (101), a movable sleeve cover (402) being slidably connected to the inner cavity of the winding drum (401), a spring (403) being fixedly connected to the bottom of the inner cavity of the movable sleeve cover (402), and two limit plates (405) being symmetrically and movably connected to the lower surface of the movable sleeve cover (402).

2. The distributed optical fiber temperature measurement and early warning bus according to claim 1, characterized in that: One end of the temperature-sensing optical fiber (2) is provided with an optical fiber temperature measurement host body (201), and the upper end of the spring telescopic rod (304) is fixedly connected to the top of the inner cavity of the slider (302).

3. The distributed optical fiber temperature measurement and early warning bus according to claim 1, characterized in that: The middle portion of the optical fiber positioning plate (305) is in an arc-shaped convex shape, the temperature-sensing optical fiber (2) is located inside the arc-shaped convex shape of the optical fiber positioning plate (305), and a rubber pad (306) is fixedly connected to the lower surface of the optical fiber positioning plate (305).

4. The distributed optical fiber temperature measurement and early warning bus according to claim 1, characterized in that: The winding drum (401) is fixed to the busbar connection point (101) by means of universal glue, the temperature-sensitive optical fiber (2) is wound on the outer surface of the winding drum (401), and the upper end of the spring (403) is fixedly connected to the top of the inner cavity of the winding drum (401).

5. The distributed optical fiber temperature measurement and early warning bus according to claim 1, characterized in that: The lower surface of the limiting plate (405) is provided with an arc-shaped opening, and the temperature-sensing optical fiber (2) is located inside the arc-shaped opening of the limiting plate (405).

6. The distributed optical fiber temperature measurement and early warning bus according to claim 1, characterized in that: The bottom of the inner cavity of the limiting plate (405) is fixedly connected to a second spring telescopic rod (404), and the upper end of the second spring telescopic rod (404) is fixedly connected to the movable sleeve cover (402).

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