GIL expansion joint monitoring device with heat dissipation function
By installing a cooling block and a laser source monitoring device on the GIL expansion joint, automatic heat dissipation and displacement monitoring of the expansion joint are achieved, solving the problem of automatic heat dissipation in the existing technology and improving monitoring efficiency and service life.
Patent Information
- Application Number
- CN202510900265.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-01
- Publication Date
- 2025-09-23
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During operation, the existing GIL expansion joint monitoring device can only monitor the relative position movement of the expansion joint due to thermal expansion and contraction, and does not have the function of dissipating heat from the expansion joint, resulting in the need for manual maintenance, which consumes manpower and time.
A GIL expansion joint monitoring device with heat dissipation function is designed. By installing multiple cooling blocks and laser sources on the expansion joint, the movement of the cooling blocks drives the laser source to emit laser for displacement monitoring. The circulating pump realizes the circulation of coolant for heat dissipation, and the buffer protection component is combined to prevent the device from being damaged.
It realizes automatic heat dissipation and displacement monitoring of the expansion joint, improves the accuracy and efficiency of monitoring, reduces the frequency of manual maintenance, and extends the service life of the expansion joint.
Smart Images
Figure CN120686018A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of GIL operation and maintenance monitoring, and in particular to a GIL expansion joint monitoring device with a heat dissipation function. Background Art
[0002] Gas-insulated metal-enclosed transmission lines (GILs), as a new type of power transmission method, are increasingly widely used in power systems. GILs are generally assembled on-site from prefabricated long-distance straight pipe units and corresponding expansion joints, elbows, brackets, and other units. However, after the GIL is put into operation, it is difficult to quickly and accurately locate the fault location when insulation failure occurs due to thermal expansion and contraction caused by ambient temperature and thermal effects of operating equipment. Therefore, a GIL expansion joint monitoring device is needed to quickly determine the fault location.
[0003] During operation, the current GIL expansion joint monitoring device can only monitor the relative position movement of the expansion joint due to thermal expansion and contraction, and does not have the function of dissipating heat from the expansion joint. The service life of the expansion joint can only be guaranteed by inspection and maintenance by operation and maintenance personnel, which is relatively labor-intensive and time-consuming. Summary of the Invention
[0004] The object of the present invention is to provide a GIL expansion joint monitoring device with a heat dissipation function to solve the problems raised in the prior art.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: the GIL telescopic joint monitoring device with heat dissipation function comprises a plurality of cooling blocks, and the plurality of cooling blocks are mounted on the telescopic joint and arranged in an axial array, and the tops of the plurality of cooling blocks are each mounted with an adjustment plate, and the tops of the plurality of adjustment plates are each mounted with a laser source, and a monitoring box is mounted on the telescopic joint, and a long groove is provided at the bottom of the monitoring box, and the laser source passes through the long groove, and the monitoring box comprises a left shell and a right shell, and an L-shaped hole is provided at one end of the right shell, and a compensation plate is mounted at one end of the left shell, and the compensation plate is slidably mounted in the L-shaped hole, and a detection plate is mounted in the monitoring box, and a main box is mounted at one end of the telescopic joint, and a telescopic rod is mounted on one side of the main box, and the other end of the telescopic joint is provided with a telescopic rod. A support plate is installed, and a connecting rod is installed on the support plate. The connecting rod is connected to the telescopic rod through a universal joint. A telescopic protective cover is provided on the telescopic rod and the connecting rod. The telescopic rod and the detection plate are electrically connected to the main box. When the temperature rises and the telescopic joint is displaced, the cooling block moves with the telescopic joint and starts to dissipate heat, while driving the laser source on the top of the cooling block to move synchronously, thereby converting the movement of the telescopic joint into a position change of the laser emitted by the laser source on the detection plate, and then the detection result of the detection plate is fed back to the main box to realize the displacement monitoring of the telescopic joint. At the same time, when the telescopic joint is displaced, the length of the telescopic rod on the main box is driven to change to measure the tension exerted on the telescopic joint, thereby realizing data monitoring of the telescopic joint to estimate the service life and maintenance frequency.
[0006] As a preferred technical solution, the laser lights emitted by the multiple laser sources are all different in color.
[0007] As an optimal technical solution, grooves are provided at the bottoms of the multiple cooling blocks, and the grooves are fitted with the wave crests on the telescopic joint. Chambers are provided in the multiple cooling blocks, and the adjacent chambers are connected end to end through U-shaped tubes. Pipe joints are installed at the bottoms of the cooling blocks at both ends, and the two pipe joints are connected through plastic hoses. A slide rail is installed on one side of the corrugation, and a storage table is slidably installed on the slide rail. A cooling box is installed on the storage table, and a reflux hole is provided on the top of the cooling box. A circulating pump is installed in the cooling box, and the output end of the circulating pump is connected to the input end of the head end cooling block through an output pipe, and the reflux hole is connected to the output end of the end cooling block through an input pipe. When the telescopic joint is displaced due to temperature increase, the circulating pump is started to transport the coolant in the cooling box to the chambers in the multiple cooling blocks, and then the coolant flows from the chamber into the plastic hose. Then the coolant flows back to the cooling box through the input pipe to complete the cycle, and then is evenly distributed on the telescopic joint through the plastic hose to achieve uniform heat dissipation of the telescopic joint.
[0008] As a preferred technical solution, the plastic hose is evenly distributed on the outer wall of the telescopic joint.
[0009] As a preferred technical solution, a hollow tube is rotatably installed in the cooling box, a rotary joint is installed on the top of the hollow tube, and the rotary joint is connected to the return hole through a pipe. Two groups of rotors are installed on the hollow tube, each group of rotors includes two bent hollow tubes, and the bending directions of the bent hollow tubes in the two groups of rotors are opposite. A plurality of nozzles are installed on the multiple bent hollow tubes, and two support frames are symmetrically installed on the hollow tube. Multiple rotating shafts are rotatably installed on the two support frames, and refrigeration fins are installed on the multiple rotating shafts. When the coolant flows back into the cooling box, it passes through the hollow tube and is then sprayed out by the nozzles on the bent hollow tubes in the rotors. By arranging two groups of rotors with different bending directions, the thrust generated when the coolant is sprayed drives the hollow tube to rotate. At this time, the hollow tube drives the support frame to rotate synchronously, and then drives the refrigeration fins on the support frame to revolve around the hollow tube. At the same time, the refrigeration fins rotate around the rotating shaft under the resistance of the coolant, ultimately realizing the cooling and reuse of the cooling.
[0010] As an optimal technical solution, the bending angle of the bent hollow tube is 45°.
[0011] As a preferred technical solution, a buffer protection component is further provided on the telescopic joint, and the buffer protection component can prevent the telescopic joint from instantaneously displacing a large distance and causing damage to the monitoring device.
[0012] As a preferred technical solution, the buffer protection assembly includes a first fixed plate, a second fixed plate, a connecting plate, a square groove, a slide, a slider, a push rod, a rack, a storage groove, a rotating rod, a gear, a buffer box, a circular groove, a stop block, a turntable, a claw, an arc hole, a storage block, a sliding hole, a slide rod, and a reset spring; The two ends of the telescopic joint are respectively provided with a first fixed plate and a second fixed plate, the second fixed plate is rotatably connected to one end of the connecting plate, the other end of the connecting plate is provided with a square groove, the square groove is provided with a connecting shaft, one end of the first fixed plate is rotatably connected to the connecting shaft, the side wall of the square groove is symmetrically provided with a slide, the slide is slidably installed on the slide, the slider is installed on the slider, the push rod is installed on the push rod, the rack is installed on the push rod, the buffer box is provided with a circular groove on the buffer box, a plurality of stop blocks are installed on the side wall of the circular groove, the circular groove is penetrated by the rotating rod, and the rotating rod is provided with a rotating The disc has a plurality of claws rotatably installed on the turntable, and arc holes are provided on the plurality of claws. A placement block is installed on the turntable, and a sliding hole is provided on the placement block. A sliding rod is slidably installed in the sliding hole, and a return spring is installed between the sliding rod and the placement block. One end of the sliding rod is slidably installed in the arc hole. When the telescopic joint fatigue failure occurs and a long displacement occurs, the distance between the first fixed plate and the second fixed plate becomes larger, and the first fixed plate drives the slider on the connecting plate to move quickly, so that the push rod on the slider drives the rack drive gear to rotate quickly, and then drives the turntable on the rotating rod to rotate synchronously with the gear, and the centrifugal force generated when the turntable rotates drives the claws to open, so that the claws hit the stop block for buffering during the rotation, thereby realizing protection of the monitoring device.
[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives the cooling block to move by the expansion of the telescopic joint, and cools the telescopic joint by the cooling block. At the same time, the position of the laser emitted by the laser source changes on the detection plate, and the displacement of the telescopic joint is converted into the displacement of the laser on the detection plate. At the same time, when the telescopic joint is displaced, the telescopic rod changes synchronously with the telescopic joint, and the tension on the telescopic joint is calculated by the change in the length of the telescopic rod by the main box.
[0014] 2. The present invention circulates the coolant in the cooling block and the plastic hose through a circulating pump, and evenly distributes the plastic hose on the expansion joint to achieve uniform cooling of the expansion joint. The reflux coolant then drives the refrigeration fins to revolve and rotate in the cooling box, thereby achieving cooling recycling of the coolant.
[0015] 3. The present invention pushes the push rod on the slider to move by the first fixed plate, providing driving force for the rack to drive the gear. At the same time, the gear drives the turntable to rotate to generate centrifugal force, and the centrifugal force drives the claw to open and the stop block to collide for buffering. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the main structure of the present invention from a first perspective; Figure 2 This is a schematic diagram of the structure of the main body of the present invention from a second viewing angle; Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention from a first viewing angle; Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention from a second viewing angle; Figure 5 This is a schematic diagram of the cross-sectional structure of the present invention from a third viewing angle; Figure 6 This is a schematic structural diagram of the displacement compensation assembly of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the displacement compensation assembly of the present invention; Figure 8 for Figure 5 Schematic diagram of the structure at A in FIG; Figure 9 for Figure 6 Schematic diagram of the structure at point B in the figure.
[0017] In the figure: 11, cooling block; 111, U-shaped tube; 112, chamber; 113, groove; 12, plastic hose; 13, pipe joint; 14, cooling box; 141, return hole; 15, circulation pump; 16, slide rail; 17, storage table; 21. Hollow tube; 22. Rotary joint; 23. Rotor; 231. Bent hollow tube; 232. Nozzle; 24. Support frame; 25. Rotating shaft; 26. Refrigeration fin; 31. Adjustment plate; 32. Laser source; 33. Monitoring box; 331. Left housing; 332. Right housing; 333. Compensation plate; 334. L-shaped hole; 335. Long slot; 34. Detection plate; 35. Main unit box; 36. Telescopic rod; 37. Connecting rod; 38. Universal joint; 39. Support plate; 310. Telescopic protective cover; 4. Buffer protection assembly; 41. First fixed plate; 42. Second fixed plate; 43. Connecting plate; 431. Square groove; 432. Slideway; 433. Slider; 434. Push rod; 44. Storage slot; 45. Rotating rod; 46. Gear; 47. Buffer box; 48. Circular groove; 481. Stop block; 49. Turntable; 410. Claw; 4101. Arc hole; 411. Storage block; 4111. Slide hole; 412. Slide rod; 413. Return spring. DETAILED DESCRIPTION
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0019] Example: Figure 1-Figure 5 As shown, the present invention provides a technical solution of a GIL telescopic joint monitoring device with a heat dissipation function, the GIL telescopic joint monitoring device with a heat dissipation function comprises a plurality of cooling blocks 11, the plurality of cooling blocks 11 are mounted on the telescopic joint and are in an axial array, the tops of the plurality of cooling blocks 11 are each mounted with an adjusting piece 31, the tops of the plurality of adjusting pieces 31 are each mounted with a laser source 32, a monitoring box 33 is mounted on the telescopic joint, a long slot 335 is provided at the bottom of the monitoring box 33, the laser source 32 passes through the long slot 335, the monitoring box 33 comprises a left shell 331 and a right shell 332, an L-shaped hole 334 is provided at one end of the right shell 332, a compensation piece 333 is mounted at one end of the left shell 331, the compensation piece 333 is slidably mounted in the L-shaped hole 334, a detection plate 34 is mounted in the monitoring box 33, a main box 35 is mounted at one end of the telescopic joint, a telescopic rod 36 is mounted on one side of the main box 35, A support plate 39 is installed at the other end of the retractable joint, and a connecting rod 37 is installed on the support plate 39. The connecting rod 37 is connected to the telescopic rod 36 by a universal joint 38. A telescopic protective cover 310 is provided on the telescopic rod 36 and the connecting rod 37. The telescopic rod 36 and the detection plate 34 are electrically connected to the main box 35. When the temperature rises and the telescopic joint is displaced, the cooling block 11 moves with the telescopic joint and starts to dissipate heat, while driving the laser source 32 on the top of the cooling block 11 to move synchronously, thereby converting the movement of the telescopic joint into a position change of the laser emitted by the laser source 32 on the detection plate 34, and then the detection result of the detection plate 34 is fed back to the main box 35 to realize the displacement monitoring of the telescopic joint. At the same time, when the telescopic joint is displaced, the length of the telescopic rod 36 on the main box 35 is driven to change to measure the tension exerted on the telescopic joint, thereby realizing data monitoring of the telescopic joint to estimate the service life and maintenance frequency.
[0020] The laser lights emitted by the multiple laser sources 32 have different colors.
[0021] The bottom of the plurality of cooling blocks 11 is provided with a groove 113, and the groove 113 fits with the crest of the expansion joint. The plurality of cooling blocks 11 are provided with a chamber 112, and the adjacent chambers 112 are connected end to end through a U-shaped tube 111. The bottom of the cooling blocks 11 at both ends is provided with a pipe joint 13, and the two pipe joints 13 are connected through a plastic hose 12. A slide rail 16 is provided on one side of the corrugation, and a storage platform 17 is slidably installed on the slide rail 16. A cooling box 14 is installed on the storage platform 17, and a reflux hole 141 is provided on the top of the cooling box 14. The cooling box 1 4 is installed with a circulation pump 15, the output end of the circulation pump 15 is connected to the input end of the head cooling block 11 through an output pipe, and the reflux hole 141 is connected to the output end of the terminal cooling block 11 through an input pipe. When the temperature reaches the limit, the circulation pump 15 is started to transport the coolant in the cooling box 14 to the chambers 112 in the multiple cooling blocks 11, and then flow from the chambers 112 into the plastic hose 12, and then the coolant flows back to the cooling box 14 through the input pipe to complete the cycle, and then is evenly distributed on the telescopic joint through the plastic hose 12 to achieve uniform heat dissipation of the telescopic joint.
[0022] The plastic hose 12 is evenly distributed on the outer wall of the telescopic joint.
[0023] like Figure 5 and Figure 8 As shown, a hollow tube 21 is rotatably installed in the cooling box 14, a rotary joint 22 is installed on the top of the hollow tube 21, and the rotary joint 22 is connected to the return hole 141 through a pipe. Two sets of rotors 23 are installed on the hollow tube 21, and each set of rotors 23 includes two bent hollow tubes 231. The bending directions of the bent hollow tubes 231 in the two sets of rotors 23 are opposite. A plurality of nozzles 232 are installed on the multiple bent hollow tubes 231. Two support frames 24 are symmetrically installed on the hollow tube 21. Multiple shafts 25 are rotatably installed on the two support frames 24. The multiple shafts 25 5 are both equipped with cooling fins 26. When the coolant flows back into the cooling box 14, it passes through the hollow tube 21 and is then ejected by the nozzle 232 on the bent hollow tube 231 in the rotor 23. By setting two sets of rotors 23 with different bending directions, the thrust generated when the coolant is ejected drives the hollow tube 21 to rotate. At this time, the hollow tube 21 drives the support frame 24 to rotate synchronously, and then drives the cooling fins 26 on the support frame 24 to revolve around the hollow tube 21. At the same time, the cooling fins 26 rotate around the rotating shaft 25 under the resistance of the coolant, ultimately achieving cooling and reuse of the cooling.
[0024] The bending angle of the bent hollow tube 231 is 45°.
[0025] like Figure 6 、 Figure 7 and Figure 9 As shown, a buffer protection component 4 is also provided on the telescopic joint, and the buffer protection component 4 can prevent the telescopic joint from instantaneously displacing a large distance and causing damage to the monitoring device.
[0026] The buffer protection assembly 4 includes a first fixing plate 41, a second fixing plate 42, a connecting plate 43, a square groove 431, a slideway 432, a slider 433, a push rod 434, a rack 4341, a storage groove 44, a rotating rod 45, a gear 46, a buffer box 47, a circular groove 48, a stop block 481, a rotating disk 49, a claw 410, an arc-shaped hole 4101, a storage block 411, a sliding hole 4111, a sliding rod 412, and a return spring 413; The first and second fixing plates 41 and 42 are respectively installed at both ends of the telescopic joint. The second fixing plate 42 is rotatably connected to one end of the connecting plate 43. The other end of the connecting plate 43 is provided with a square groove 431. A connecting shaft is installed in the square groove 431. One end of the first fixing plate 41 is rotatably connected to the connecting shaft. A slideway 432 is symmetrically provided on the side wall of the square groove 431. A slider 433 is slidably installed in the slideway 432. A push rod 434 is installed on the slider 433. A rack is installed, a storage groove 44 is opened on the connecting plate 43, a rotating rod 45 is installed in the storage groove 44, a gear 46 is installed on the rotating rod 45, the gear 46 is meshed with the rack, a buffer box 47 is installed on the side wall of the storage groove 44, a circular groove 48 is opened on the buffer box 47, a plurality of stop blocks 481 are installed on the side wall of the circular groove 48, the circular groove 48 is penetrated by the rotating rod 45, a turntable 49 is installed on the rotating rod 45, and a plurality of cards are rotatably installed on the turntable 49. The gear 46 is rotated by the gear 48 on the first and second plates 411, and the gear 48 is rotated by the gear 48 on the second plate 412.
[0027] Working principle of the present invention: When the temperature rises and the expansion joint is displaced, the cooling block 11 moves with the expansion joint and starts to dissipate heat, and at the same time drives the laser source 32 on the top of the cooling block 11 to move synchronously, thereby converting the movement of the expansion joint into a position change of the laser emitted by the laser source 32 on the detection plate 34, and then the detection result of the detection plate 34 is fed back to the main box 35 to realize the displacement monitoring of the expansion joint. At the same time, when the expansion joint is displaced, the length of the expansion rod 36 on the main box 35 is driven to change to measure the tension exerted on the expansion joint, thereby realizing data monitoring of the expansion joint to estimate the service life and maintenance frequency.
[0028] When the temperature reaches the limit, the circulation pump 15 is started to transport the coolant in the cooling box 14 to the chambers 112 in the multiple cooling blocks 11, and then flows into the plastic hose 12 from the chamber 112, and then the coolant flows back to the cooling box 14 through the input pipe to complete the circulation, and then is evenly distributed on the telescopic joint through the plastic hose 12 to achieve uniform heat dissipation of the telescopic joint. After the coolant flows back to the cooling box 14, it passes through the hollow tube 21 and is sprayed out by the nozzle 232 on the bent hollow tube 231 in the rotor 23. By setting two groups of rotors 23 with different bending directions, the thrust generated when the coolant is sprayed drives the hollow tube 21 to rotate. At this time, the hollow tube 21 drives the support frame 24 to rotate synchronously, and then drives the refrigeration plate 26 on the support frame 24 to revolve around the hollow tube 21. At the same time, the refrigeration plate 26 rotates around the rotating shaft 25 under the resistance of the coolant, and finally realizes the cooling and reuse of the cooling.
[0029] When the telescopic joint is fatigued and fails, resulting in a longer displacement, the distance between the first fixed plate 41 and the second fixed plate 42 becomes larger, and the first fixed plate 41 drives the slider 433 on the connecting plate 43 to move quickly, so that the push rod 434 on the slider 433 drives the rack drive gear 46 to rotate quickly, and then drives the turntable 49 and the gear 46 on the rotating rod 45 to rotate synchronously. The centrifugal force generated by the rotation of the turntable 49 drives the claw 410 to open, so that the claw 410 hits the stop block 481 for buffering during the rotation process, thereby protecting the monitoring device.
[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. A GIL expansion joint monitoring device with heat dissipation function, characterized by: The GIL telescopic joint monitoring device with heat dissipation function comprises a plurality of cooling blocks (11), the plurality of cooling blocks (11) being mounted on the telescopic joint and arranged in an axial array, the tops of the plurality of cooling blocks (11) being mounted with adjustment plates (31), the tops of the plurality of adjustment plates (31) being mounted with laser sources (32), a monitoring box (33) being mounted on the telescopic joint, a long slot (335) being provided at the bottom of the monitoring box (33), the laser source (32) passing through the long slot (335), the monitoring box (33) comprising a left shell (331) and a right shell (332), one end of the right shell (332) being mounted with an L-shaped hole (334), and one end of the left shell (331) being mounted with a laser source (32). A compensation plate (333) is installed, and the compensation plate (333) is slidably installed in the L-shaped hole (334). A detection plate (34) is installed in the monitoring box (33). A main box (35) is installed at one end of the telescopic section. A telescopic rod (36) is installed on one side of the main box (35). A support plate (39) is installed at the other end of the telescopic section. A connecting rod (37) is installed on the support plate (39). The connecting rod (37) is connected to the telescopic rod (36) through a universal joint (38). A telescopic protective cover (310) is provided on the telescopic rod (36) and the connecting rod (37). The telescopic rod (36) and the detection plate (34) are electrically connected to the main box (35).
2. A GIL expansion joint monitoring device with heat dissipation function according to claim 1, characterized in that: The laser lights emitted by the plurality of laser sources (32) all have different colors.
3. The GIL expansion joint monitoring device with heat dissipation function according to claim 2, characterized in that: The bottoms of the plurality of cooling blocks (11) are provided with grooves (113), the grooves (113) being fitted with the crests of the expansion joints, the plurality of cooling blocks (11) are provided with chambers (112), the adjacent chambers (112) are connected end to end via U-shaped tubes (111), the bottoms of the cooling blocks (11) at both ends are provided with pipe joints (13), the two pipe joints (13) are connected via a plastic hose (12), and one side of the corrugation is provided with a A slide rail (16) is provided with a storage platform (17) slidably mounted on the slide rail (16), a cooling box (14) is mounted on the storage platform (17), a reflux hole (141) is provided on the top of the cooling box (14), a circulating pump (15) is mounted in the cooling box (14), an output end of the circulating pump (15) is connected to an input end of the head cooling block (11) via an output pipe, and the reflux hole (141) is connected to an output end of the tail cooling block (11) via an input pipe.
4. The GIL expansion joint monitoring device with heat dissipation function according to claim 3, characterized in that: The plastic hose (12) is evenly distributed on the outer wall of the telescopic joint.
5. The GIL expansion joint monitoring device with heat dissipation function according to claim 4, characterized in that: A hollow tube (21) is rotatably installed in the cooling box (14), a rotary joint (22) is installed on the top of the hollow tube (21), the rotary joint (22) is connected to the return hole (141) through a pipeline, two groups of rotors (23) are installed on the hollow tube (21), each group of the rotors (23) includes two bent hollow tubes (231), the bending directions of the bent hollow tubes (231) in the two groups of the rotors (23) are opposite, and a plurality of nozzles (232) are installed on the plurality of bent hollow tubes (231), two support frames (24) are symmetrically installed on the hollow tube (21), a plurality of rotating shafts (25) are rotatably installed on the two support frames (24), and a plurality of refrigeration fins (26) are installed on the plurality of rotating shafts (25).
6. The GIL expansion joint monitoring device with heat dissipation function according to claim 5, characterized in that: The bending angle of the bent hollow tube (231) is 45°.
7. The GIL expansion joint monitoring device with heat dissipation function according to claim 6, characterized in that: A buffer protection component (4) is also provided on the telescopic joint, and the buffer protection component (4) can prevent the telescopic joint from instantaneously displacing a large distance and causing damage to the monitoring device.
8. The GIL expansion joint monitoring device with heat dissipation function according to claim 7, characterized in that: The buffer protection assembly (4) includes a first fixed plate (41), a second fixed plate (42), a connecting plate (43), a square groove (431), a slideway (432), a slider (433), a push rod (434), a rack (4341), a storage groove (44), a rotating rod (45), a gear (46), a buffer box (47), a circular groove (48), a stop block (481), a rotating disk (49), a claw (410), an arc hole (4101), a storage block (411), a sliding hole (4111), a slide rod (412), and a return spring (413); The telescopic joint is provided with a first fixing plate (41) and a second fixing plate (42) at both ends thereof, the second fixing plate (42) is rotatably connected to one end of the connecting plate (43), the other end of the connecting plate (43) is provided with a square groove (431), a connecting shaft is installed in the square groove (431), one end of the first fixing plate (41) is rotatably connected to the connecting shaft, a slideway (432) is symmetrically provided on the side wall of the square groove (431), a slider (433) is slidably installed in the slideway (432), a push rod (434) is installed on the slider (433), a rack is installed on the push rod (434), a storage groove (44) is provided on the connecting plate (43), a rotating rod (45) is installed in the storage groove (44), a gear (46) is installed on the rotating rod (45), and the gear (46) is meshed with the rack. A buffer box (47) is installed on the side wall of the storage groove (44), a circular groove (48) is provided on the buffer box (47), and a plurality of stop blocks (481) are installed on the side wall of the circular groove (48). The circular groove (48) is penetrated by a rotating rod (45), a turntable (49) is installed on the rotating rod (45), a plurality of claws (410) are rotatably installed on the turntable (49), and the plurality of claws (410) are all provided with arc holes (4101), a storage block (411) is installed on the turntable (49), a sliding hole (4111) is provided on the storage block (411), a sliding rod (412) is slidably installed in the sliding hole (4111), a return spring (413) is installed between the sliding rod (412) and the storage block (411), and one end of the sliding rod (412) is slidably installed in the arc hole (4101).