UHV transformer maintenance support assembly and maintenance method

Abstract

The application discloses a kind of overhaul support assembly and overhaul method of extra-high voltage transformer, it is related to the technical field of extra-high voltage transformer maintenance equipment, including support, support includes multiple columns, support rod and support plate, column is suitable for being fixedly connected with extra-high voltage transformer, support rod is provided with two and is fixed on column in a manner of being liftable, support plate is movably arranged between support rod along the length direction of support rod;Protective component, protective component includes two guardrails and protective rod, two guardrails are fixed on support plate in a manner of being liftable, and the end of two guardrails is abutted and is formed first protection area by surrounding;Air cooling component, air cooling component includes fan and arc track, fan is arranged in arc track and can move along arc track.The application can adjust the height and horizontal position of overhaul according to the overhaul position, and can provide protection and cooling for overhaul personnel when high temperature.

Description

Technical Field

[0001] The present application relates to the technical field of ultra-high voltage transformer maintenance, and in particular to an ultra-high voltage transformer maintenance bracket assembly and maintenance method. Background Art

[0002] Existing UHV transformer maintenance platforms cannot be raised or lowered to adjust their height or horizontal position based on the maintenance location, resulting in low maintenance efficiency. Furthermore, the platforms lack protective devices, which cannot guarantee the safety of maintenance personnel. Furthermore, the platforms lack cooling devices for maintenance personnel. During hot summer weather, maintenance personnel may find it difficult to withstand the high temperatures, hindering maintenance work. Summary of the Invention

[0003] In order to solve the above technical problems, the present application provides a maintenance bracket assembly and maintenance method for a UHV transformer, which can adjust the maintenance height and horizontal position according to the maintenance position, and can provide protection for maintenance personnel and cooling at high temperatures.

[0004] The specific technical solutions provided in this application are as follows:

[0005] In a first aspect, a maintenance support assembly for an ultra-high voltage transformer is provided, comprising a support, the support comprising a plurality of columns, support rods, and support plates, the columns being adapted to be fixedly connected to a low-voltage bushing elevation panel of the ultra-high voltage transformer, the support rods being provided with two columns and being fixedly mounted on the columns in a manner such that they can be raised and lowered, and the support plates being provided with two plates and being movably mounted between the support rods along their lengths.

[0006] A protection assembly, comprising two arc-shaped guardrails and guard rods respectively fixed to the guardrails, wherein the two guardrails are respectively fixedly mounted on the two support plates via corresponding guard rods and can be raised and lowered, and when the opposite ends of the two support plates abut against each other, the ends of the two guardrails abut against each other and enclose a first protection zone;

[0007] An air cooling assembly includes a fan and a curved track provided on the guardrail. The fan is provided on the curved track and can move along the curved track. The fan is used to blow air toward the first protection zone.

[0008] The power supply assembly includes a photovoltaic assembly, an energy storage component and a connecting wire. The photovoltaic assembly and the energy storage component are arranged on the support rod. The energy storage component connects the photovoltaic assembly and the connecting wire, and the connecting wire is connected to the fan.

[0009] As a preferred form of the above solution, the protection assembly further comprises two end rods, the ends of the two protection fences are separated when the two support plates move away from each other along the length direction of the support rods, the two end rods are respectively fixed to the ends of the two protection fences and respectively surround to form a second protection area and a third protection area, and the fans on the two protection fences are respectively used to blow wind to the second protection area and the third protection area.

[0010] As a preferred form of the above solution, the two ends of the end rods are respectively fixedly connected with the two ends of the protection fences through first fixing members when the two protection fences are separated.

[0011] The two ends of the two protection fences are fixedly connected through second fixing members when the two protection fences abut against each other, and the second fixing members comprise buckle members or magnetic attraction members.

[0012] As a preferred form of the above solution, the maintenance support assembly of the extra-high voltage transformer further comprises a positioning assembly, the positioning assembly comprises a first fitting part and a second fitting part, the opposite side walls of the two support rods are provided with guide grooves extending along the length direction of the support rods, and the opposite side walls of the support plates are provided with guide blocks which are inserted into the guide grooves.

[0013] The first fitting part is arranged on the guide block, the second fitting part is arranged on the guide groove, and the first fitting part and the second fitting part cooperate to position the support plate on the support rod when the support plate moves to different positions along the length direction of the support rod.

[0014] As a preferred form of the above solution, one of the first fitting part and the second fitting part is a groove, and the other is an elastic column, the end of the elastic column is arc-shaped, and the end of the elastic column is embedded in the groove when the support plate moves to different positions along the length direction of the support rod.

[0015] As a preferred form of the above solution, a plurality of protection rods are fixedly connected to one of the protection fences, the cross section of the protection rod is arc-shaped, the support plate is formed with an arc-shaped through hole, and the protection rod penetrates through the arc-shaped through hole and abuts against the inner wall of the arc-shaped through hole.

[0016] The protection assembly further comprises a magnetic material and an electromagnet, one side wall of the protection rod is provided with the magnetic material, the inner wall of the arc-shaped through hole is embedded with an arc-shaped electromagnet, the electromagnet tightly abuts against the magnetic material and is connected with the energy storage member through the connecting line, and the electromagnet fixes the protection rod on the support plate by attracting the magnetic material when the electromagnet is electrified.

[0017] As a preferred embodiment of the above solution, the air cooling assembly further includes a fan frame, a drive motor, a gear, an arc-shaped rack and an induction member, the fan frame is arranged on the arc track, the fan is arranged on the fan frame, the drive motor is fixed to the fan frame and connected to the energy storage member through the connecting line, and the gear is connected to the drive motor;

[0018] The arc-shaped rack is fixed to the arc-shaped track, the arc-shaped rack is engaged with the gear, the induction member is arranged at both ends of the arc-shaped track and connected to the drive motor, and the induction member is used to sense the fan frame and drive the drive motor to switch forward or reverse.

[0019] As a preferred embodiment of the above solution, the bracket further includes four sleeves, which are respectively inserted into the two ends of the two support rods, and the four columns are provided and correspond to the four sleeves respectively;

[0020] A first slide groove and a second slide groove of the same structure are provided on the opposite side walls of the column. The first slide groove and the second slide groove extend along the height direction of the column. The sleeve is provided with a sliding protrusion, and the sliding protrusion is slidably set in the first slide groove. A fastener passes through the column between the first slide groove and the second slide groove and fixes the sliding protrusion to the column.

[0021] As a preferred embodiment of the above solution, the power supply assembly further includes a photovoltaic support frame, and the photovoltaic support frame includes a bottom plate, a first support, a first elastic hook, a first limit block, a second support, a second elastic hook and a second limit block;

[0022] The bottom plate is fixed to one end of the support rod, the first support and the second support are fixed to the bottom plate at intervals, and the height of the first support is greater than that of the second support, one end of the first elastic hook is fixed to the first support and a first elastic slot is formed on the first elastic hook, and one end of the second elastic hook is fixed to the second support and a second elastic slot is formed on the second elastic hook;

[0023] The first limit block and the second limit block are fixed at intervals on the bottom of the photovoltaic component, the first limit block is clamped in the first elastic slot, and the second limit block is clamped in the second elastic slot, so that the photovoltaic component is tilted on the bottom plate.

[0024] The maintenance bracket assembly of the ultra-high voltage transformer of the present application is fixedly connected to the low-voltage bushing lifting seat panel of the ultra-high voltage transformer through a column, so that the bracket is installed on the low-voltage bushing lifting seat panel of the ultra-high voltage transformer; the positions of the support rod and the support plate on the column are adjusted according to the maintenance position and the support rod is fixed, so as to adjust the maintenance height; the position of the support plate on the support rod is adjusted according to the maintenance position, so as to adjust the horizontal position, and make the ends of the two support plates abut against each other, and the maintenance personnel stand on the support plate and are located in the first protection zone; the position of the protection rod on the support plate is adjusted by lifting and fixing the protection rod so that the position of the guardrail is adapted to the height of the maintenance personnel, thereby effectively protecting the maintenance personnel; the photovoltaic component converts solar energy into electrical energy and stores it by the energy storage component. In hot weather, the fan is powered by the energy storage component and moves along an arc track to blow air to the maintenance personnel to cool them down.

[0025] In a second aspect, a maintenance method for the maintenance support assembly of the UHV transformer as described above is provided, comprising the following steps:

[0026] The column is fixedly connected to the low-voltage bushing lifting seat panel of the ultra-high voltage transformer, and the position of the support rod and the support plate on the column is adjusted according to the maintenance position, and the support rod is fixed;

[0027] Adjust the position of the support plate on the support rod according to the maintenance position, and make the ends of the two support plates abut against each other, and the maintenance personnel stand on the support plate and are located in the first protection area;

[0028] Lifting and adjusting the position of the guardrail on the support plate and fixing the guardrail so that the position of the guardrail is adapted to the height of the maintenance personnel;

[0029] The photovoltaic assembly converts solar energy into electrical energy and stores it in an energy storage component. The fan is powered by the energy storage component and moves along an arc track to blow air toward the maintenance personnel to cool them down. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 This is a front view structural diagram of the maintenance bracket assembly of the ultra-high voltage transformer of this application;

[0032] Figure 2This is a schematic diagram of the top view of the maintenance bracket assembly of the ultra-high voltage transformer of this application;

[0033] Figure 3 This is a schematic cross-sectional structural diagram of the support plate of the present application;

[0034] Figure 4 This is a schematic diagram of the structure of the support plate of this application when it is in abutment;

[0035] Figure 5 This is a schematic diagram of the structure of the support plate of this application when it is separated;

[0036] Figure 6 This is a schematic diagram of the end structure of the guardrail and the lever of this application;

[0037] Figure 7 A schematic diagram of the structure of the power supply assembly of this application;

[0038] Figure 8 This is a schematic cross-sectional view of the column of the present application;

[0039] Figure 9 This is a schematic structural diagram of the sleeve of this application;

[0040] Figure 10 This is a flow chart of a maintenance method for an overhaul bracket assembly of an ultra-high voltage transformer of the present application.

[0041] The above drawings include the following reference numerals:

[0042] Bracket 1; column 11; first slide 111; second slide 112; fastener 113; curved surface 114; straight wall 115; through hole 116; support rod 12; guide groove 121; receiving groove 122; support plate 13; guide block 131; curved through hole 132; mounting plate 14; bolt kit 15; sleeve 16; sliding protrusion 161; threaded hole 162; protective assembly 2; guard rail 21; fixing hole 211; first threaded hole 212; protective rod 22; gear lever 23; fixing block 231; second threaded hole 232; fastening bolt 233; magnetic material 24; electromagnet 25; air cooling assembly 3; fan 31; curved track 32; fan bracket 33 ; Gear 34; Arc-shaped rack 35; Induction component 36; Power supply component 4; Photovoltaic component 41; Energy storage component 42; Photovoltaic support frame 43; Base plate 431; First support 432; First elastic hook 433; First limit block 434; Second support 435; Second elastic hook 436; Second limit block 437; First elastic slot 438; Second elastic slot 439; Arc-shaped side wall 44; Straight wall 45; Positioning component 5; First matching portion 51; Second matching portion 52; First protection zone 61; Second protection zone 62; Third protection zone 63; First magnetic ring 71; Second magnetic ring 72; UHV transformer 100; Low-voltage bushing riser panel 101. DETAILED DESCRIPTION

[0043] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more elements can be located between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more elements can be located between them. The terms "vertical," "horizontal," "left," "right," "upper," "lower," "inner," "outer," "bottom," etc. used in this specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are intended only to facilitate the description of this application and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be construed as limiting this application. In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] As described in the background art, during the annual inspection of UHV substation equipment, the maintenance of UHV transformers is particularly important. Typical maintenance content of UHV transformers is the disassembly and installation of low-voltage leads.

[0046] Existing UHV transformer maintenance platforms cannot be raised or lowered to adjust their height or horizontal position based on the maintenance location, resulting in low maintenance efficiency. Furthermore, the platforms lack protective devices, which cannot guarantee the safety of maintenance personnel. Furthermore, the platforms lack cooling devices for maintenance personnel. During hot summer weather, maintenance personnel may find it difficult to withstand the high temperatures, hindering maintenance work.

[0047] To solve the above technical problems, an embodiment of the present application provides a maintenance bracket assembly and maintenance method for a UHV transformer, which can adjust the maintenance height and horizontal position according to the maintenance position, and can provide protection for maintenance personnel and cooling at high temperatures.

[0048] Example 1

[0049] The present application provides a maintenance bracket assembly for a UHV transformer, such as Figure 1 、 Figure 2As shown, it includes a bracket 1, a protective assembly 2, an air cooling assembly 3 and a power supply assembly 4. The bracket 1 includes multiple columns 11, support rods 12 and support plates 13. The columns 11 are suitable for fixed connection with the low-voltage bushing elevation seat panel 101 of the ultra-high voltage transformer 100. Specifically, the lower end of the column 11 can be fixedly connected to the low-voltage bushing elevation seat panel 101 through a mounting plate 14 and a bolt kit 15, and the bracket 1 is installed between two ultra-high voltage transformers 100. The support rods 12 are provided in two pieces and are fixedly arranged on the columns 11 in a liftable manner. The support plates 13 are provided in two pieces and are movably arranged between the support rods 12 along the length direction of the support rods 12.

[0050] like Figure 2 As shown, the bracket 1 further includes four sleeves 16, which are respectively inserted into the two ends of the two support rods 12. The four columns 11 are provided with four sleeves 16, which correspond to the four sleeves 16. The sleeves 16 can be T-shaped, and the upper part of the sleeves 16 is inserted into the end of the support rod 12, so that the sleeves 16 can be easily installed and removed from the support rod 12.

[0051] like Figure 1 、 Figure 2 、 Figure 8 、 Figure 9As shown, a first slide groove 111 and a second slide groove 112 with the same structure are provided on the opposite side walls of the column 11. The first slide groove 111 and the second slide groove 112 extend along the height direction of the column 11. A sliding protrusion 161 is provided at the lower part of the sleeve 16. The sliding protrusion 161 is slidably set in the first slide groove 111. The fastener 113 passes through the column 11 between the first slide groove 111 and the second slide groove 112, and fixes the sliding protrusion 161 to the column 11. The first chute 111, the second chute 112, and the sliding protrusion 161 can be generally T-shaped. The first chute 111, the second chute 112, and the sliding protrusion 161 can form a matching curved surface 114 and a straight wall surface 115. The curved surface 114 can make the lifting and sliding of the sliding protrusion 161 smoother when adjusting the height of the support rod 12 and the support plate 13. After adjusting the height, the fastener 113 passes through the straight wall surface 115 to fix the sliding protrusion 161 to the column 11, which has a better fixing effect. The first chute 111 and the second chute 112 have the same structure. This allows the first chute 111 or the second chute 112 to be flexibly selected to connect with the sliding protrusion 161, avoiding the wear of one of the first chute 111 or the second chute 112, which may cause the column 11 to be unusable. The fastener 113 can be a threaded member 113. A plurality of through holes 116 can be provided on the column 11 between the first and second chute 111, 112, and evenly spaced along the height of the column 11. The through holes 116 extend through the first and second chute 111, 112. The sliding protrusion 161 can be provided with threaded holes 162 corresponding to the through holes 116. The threaded member 113, through holes 116, and threaded holes 162 are mated with each other. The first and second chute 111, 112 can extend through the ends of the column 11 to facilitate the installation and removal of the sleeve 16 from the column 11.

[0052] like Figure 4 、 Figure 5 As shown, the maintenance support assembly for the UHV transformer further includes a positioning assembly 5, which includes a first mating portion 51 and a second mating portion 52. Guide grooves 121 extending along the length of the support rods 12 are provided on opposing side walls of the two support rods 12. Guide blocks 131 are provided on opposing side walls of the support plate 13. The guide blocks 131 are inserted into the guide grooves 121. The first mating portion 51 is disposed in the guide blocks 131, and the second mating portion 52 is disposed in the guide grooves 121. When the support plate 13 moves to different positions along the length of the support rod 12, the first mating portion 51 and the second mating portion 52 cooperate to position the support plate 13 on the support rod 12.

[0053] like Figure 4 、 Figure 5As shown, one of the first fitting portion 51 and the second fitting portion 52 is a groove, and the other is an elastic column. The end of the elastic column is arc-shaped. When the support plate 13 moves to different positions along the length of the support rod 12, the end of the elastic column is embedded in the groove. When the support plate 13 moves along the length of the support rod 12, the end of the elastic column is squeezed and contracted. When the elastic column moves to the groove, the end of the elastic column pops out into the groove, thereby achieving the positioning of the support plate 13. The grooves can be evenly distributed along the length of the support rod 12 and formed on the inner wall of the guide groove 121. The elastic column can be set on the guide block 131, and when the opposite ends of the two support plates 13 abut against each other, the end of the elastic column is embedded in the corresponding groove. The provision of the guide groove 121, the groove, and the elastic column also facilitates the assembly and disassembly between the support rod 12 and the support plate 13.

[0054] like Figures 1 to 3 As shown, the protection assembly 2 includes two arc-shaped guardrails 21 and guard rods 22 respectively fixed to the guardrails 21. The two guardrails 21 are respectively fixed on the two support plates 13 by the corresponding guard rods 22 so as to be liftable. Moreover, when the opposite ends of the two support plates 13 abut against each other, the ends of the two guardrails 21 abut against each other and enclose to form a first protection zone 61. The two guardrails 21 can be set in a semicircular shape and located above the support plates 13. The first protection zone 61 can be circular. The guard rod 22 can be set parallel to the column 11, and the upper end of the guard rod 22 is fixed to the bottom of the guardrail 21. The first protection zone 61 can provide protection for a maintenance worker standing on the two support plates 13, and the two support blocks 13 can move together along the length direction of the support rod 12 to adjust the horizontal maintenance position.

[0055] like Figure 2 、 Figure 5As shown, the guard assembly 2 further comprises two stop rods 23. The support rod 12 can be provided with a receiving groove 122. When the two support plates 13 abut against each other, the stop rods 23 can be temporarily stored in the receiving groove 122. An elastic buckle (not shown) can be arranged on one side of the inner wall of the receiving groove 122. The end of the elastic buckle is formed with an abutting wall which is adapted to the shape of the stop rod 23. The abutting wall and the other side of the inner wall of the receiving groove form a placing space. The stop rod 23 is placed in the placing space. The elastic buckle presses the stop rod 23 against the inner wall of the receiving groove through elasticity and the abutting wall, so as to realize the positioning of the stop rod 23 in the receiving groove. When the stop rod 23 needs to be taken out, the stop rod 23 is only needed to be extracted from the receiving groove. The elastic buckle returns to the natural state. When the two support plates 13 move away from each other along the length direction of the support rod 12, the ends of the two guard fences 21 are separated. The two stop rods 23 can be taken out from the receiving groove 122 and fixed on the two guard fences 21 respectively, and the second guard area 62 and the third guard area 63 are formed by surrounding respectively. The second guard area 62 and the third guard area 63 can both be semicircular. The second guard area 62 and the third guard area 63 can respectively provide protection for the two maintenance personnel who stand on the two support plates 13 respectively. The two support plates 13 can move along the length direction of the support rod 12 respectively, so as to adjust the horizontal maintenance positions of the two maintenance personnel respectively.

[0056] As Figures 4 to 6As shown, when the two guardrails 21 are separated, the ends of the lever 23 are fixedly connected to the ends of the guardrails 21 via first fixing members. When the two guardrails 21 are abutted against each other, the ends of the two guardrails 21 are fixedly connected via second fixing members, which include snap fasteners or magnetic members. In this embodiment, the second fixing member is a magnetic member. Specifically, the ends of the two guardrails 21 are respectively provided with first magnetic rings 71 with opposite magnetism. The ends of the two guardrails 21 are abutted against each other and fixed by adsorption through the first magnetic rings 71. Since the auxiliary support of the guardrail 22 is provided, the two guardrails 21 only need to be lightly fixed and connected by the first magnetic rings 71; the first fixing member includes a first magnetic ring 71 and a second magnetic ring 72 provided at the end of the gear lever 23 and a bolt fastening assembly. The first magnetic ring 71 and the second magnetic ring 72 have opposite magnetism. The bolt fastening assembly includes a fixing hole 211 provided at the end of the guardrail 21 and located at the center of the first magnetic ring 71, a first threaded hole 212 provided on the guardrail 21 and connected to the fixing hole 211, and a fixing member 213 provided on the guardrail 21. At the end of the gear rod 23, there is a fixing block 231, a second threaded hole 232 and a fastening bolt 233 provided on the fixing block 231. When the two guardrails 21 are separated, the fixing block 231 is inserted into the fixing hole 211, and the first magnetic ring 71 and the second magnetic ring 72 are adsorbed and fixed at the same time, and then the fastening bolt 233 is screwed into the first threaded hole 212 and the second threaded hole 232 to fix the gear rod 23 to the guardrail 21. Since the gear rod 23 has no auxiliary support, the tightness of the connection between the gear rod 23 and the guardrail 21 needs to be strengthened to improve the protection strength. The first magnetic ring 71 and the second magnetic ring 72 are adsorbed and fixed, and the fastening effect of the bolt fastening assembly, the two work together to effectively strengthen the fixed connection between the gear rod 23 and the guardrail 21.

[0057] like Figure 7 As shown, the power supply assembly 4 includes a photovoltaic assembly 41, an energy storage component 42, and a connecting wire (not shown). The photovoltaic assembly 41 and the energy storage component 42 are mounted on the support rod 12, and the energy storage component 42 connects the photovoltaic assembly 41 and the connecting wire. The energy storage component 42 can be a battery and can be fixed to the support rod 12. The photovoltaic assembly 41 includes a solar panel.

[0058] like Figure 1 、 Figure 3 As shown, a plurality of protective rods 22 are fixedly connected to a guardrail 21. Each protective rod 22 has an arcuate cross-section. An arcuate through-hole 132 is formed in the support plate 13. Each protective rod 22 passes through the arcuate through-hole 132 and abuts against the inner wall of the arcuate through-hole 132. The plurality of protective rods 22 can be evenly distributed in the arcuate through-hole 132, and the centers of the guardrail 21, the protective rods 22, and the arcuate through-hole 132 can coincide.

[0059] like Figure 3 As shown, the protective assembly 2 also includes a magnetic conductive material 24 and an electromagnet 25. The magnetic conductive material 24 is provided on one side wall of the protective rod 22. The inner wall of the arc-shaped through hole 132 is embedded with an arc-shaped electromagnet 25. The electromagnet 25 is in close contact with the magnetic conductive material 24 and is connected to the energy storage component 42 via the connecting line. When the electromagnet 25 is energized, the electromagnet 25 fixes the protective rod 22 to the support plate 13 by adsorbing the magnetic conductive material 24. The magnetic conductive material 24 can be a material such as iron. Under normal conditions, the energy storage component 42 supplies power to the electromagnet 25, and the electromagnet 25 adsorbs and fixes the protective rod 22 and the guardrail 21. When the height of the guardrail 21 needs to be adjusted, the electromagnet 25 is de-energized, and the protective rod 22 can be raised or lowered to adjust the height of the guardrail 21. After the adjustment is completed, the electromagnet 25 is energized again, thereby fixing the position of the protective rod 22 and the guardrail 21. A switch (not shown) for the electromagnet 25 may be provided on the energy storage component 42 or the support rod 12 . The switch connects the energy storage component 42 and the electromagnet 25 , and the electromagnet 25 is de-energized by the switch.

[0060] like Figure 2 As shown, the air-cooling assembly 3 includes a fan 31 and a curved track 32 provided on the guardrail 21. The fan 31 is provided on the curved track 32 and can move along the curved track 32. The fan 31 can be powered by the energy storage component 42 by being connected to the energy storage component 42 via a connecting line. A switch (not shown) for the fan 31 can be provided on the energy storage component 42 or the support rod 12. The switch connects the energy storage component 42 and the fan 31, and the fan 31 is started and stopped by the switch. When the two guardrails 21 are against each other, the two fans 31 move along the curved track 32 on the corresponding guardrail 21 and blow air toward the first guard zone 61. When the two guardrails 21 are separated, the two fans 31 move along the curved track 32 on the corresponding guardrail 21 and blow air toward the second guard zone 62 and the third guard zone 63. The arc track 32 may be an arc groove provided on the top of the guardrail 21 and adapted to the curvature of the guardrail 21 , that is, the center of the arc track 32 and the guardrail 21 may coincide.

[0061] like Figure 1 、 Figure 2As shown, the air cooling assembly 3 further includes a fan frame 33, a drive motor (not shown), a gear 34, an arcuate rack 35, and an induction member 36. The fan frame 33 is disposed on the arcuate track 32, the fan 31 is disposed on the fan frame 33, the drive motor is fixed to the fan frame 33 and connected to the energy storage member 42 via the connecting line, and the gear 34 is connected to the drive motor. The arcuate rack 35 is fixed to the arcuate track 32 and meshes with the gear 34. The induction member 36 is disposed at both ends of the arcuate track 32 and connected to the drive motor. The induction member 36 is used to sense the fan frame 33 and drive the drive motor to switch between forward and reverse rotation. The fan frame 33 can be inserted into the arc track 32. The lower part of the fan frame 33 is set in the arc track 32 and is provided with a gear 34. The upper part of the fan frame 33 extends out of the arc track 32 and is installed with the fan 31. The energy storage member 42 or the support rod 12 can be provided with a switch (not shown) for driving the motor. The switch connects the energy storage member 42 and the driving motor, and the driving motor is powered and rotated by the switch. For example, Figure 4 、 Figure 5 As shown, when the drive motor is energized and rotates forward, the gear 34 rotates forward. The gear 34 drives the fan frame 33 and the fan 31 to move in a clockwise arc through engagement with the arc-shaped rack 35. When the fan frame 33 moves to one end of the arc track 32, the sensor 36 senses the fan frame 33 and triggers the drive motor to reverse. The drive motor drives the gear 35 to reverse. The gear 35 drives the fan frame 33 and the fan 31 to move in a counterclockwise arc through engagement with the arc-shaped rack 36. When the fan frame 33 moves to the other end of the arc track 32, the sensor 36 senses the fan frame 33 and triggers the drive motor to rotate forward again. In this way, the fan 31 moves back and forth to blow air to the first protection zone 61, the second protection zone 62 or the third protection zone 63 to cool down the maintenance personnel.

[0062] like Figure 7As shown, the power supply component 4 further includes a photovoltaic support frame 43, and the photovoltaic support frame 43 includes a bottom plate 431, a first support 432, a first elastic hook 433, a first limit block 434, a second support 435, a second elastic hook 436 and a second limit block 437; the bottom plate 431 is fixed to one end of the support rod 12, and the energy storage component 42 can be fixed on the bottom plate 431, the first support 432 and the second support 435 are fixed to the bottom plate 431 at intervals, and the height of the first support 432 is greater than that of the second support 435, and one end of the first elastic hook 433 It is fixed to the first support 432 and a first elastic slot 438 is formed on the first elastic hook 433, one end of the second elastic hook 436 is fixed to the second support 435 and a second elastic slot 439 is formed on the second elastic hook 436; the first limit block 434 and the second limit block 437 are fixed at intervals at the bottom of the photovoltaic component 41, the first limit block 434 is clamped in the first elastic slot 438, and the second limit block 437 is clamped in the second elastic slot 439, so that the photovoltaic component 41 is tilted on the base plate 431.

[0063] like Figure 7 As shown, the photovoltaic assembly 41 is tilted and arranged on the base plate 431, so that the photovoltaic assembly 41 absorbs sunlight more efficiently and converts light energy into electrical energy and stores it in the energy storage component 42. The fan 31, the drive motor, and the electromagnet 25 can all be powered by the energy storage component 42, so that solar energy is utilized for power supply. The first elastic card slot 438 and the first limit block 434 can be provided with matching arc-shaped side walls 44. When the first limit block 434 is clamped in the first elastic card slot 438, its end can be arranged to abut against the straight wall 45 of the first elastic hook 433, thereby further improving the stability of the photovoltaic assembly 41 fixed to the photovoltaic support frame 43. The structure of the second elastic card slot 439 can be the same as that of the first elastic card slot 438, and the structure of the second limit block 437 can be the same as that of the first limit block 434.

[0064] The above-mentioned structures of the present application can be provided with insulation protection (not shown) to avoid the formation of passages, such as by using insulating materials, insulating layers, insulating pads, etc.

[0065] The maintenance bracket assembly of the ultra-high voltage transformer of the present application is fixedly connected to the low-voltage bushing elevation seat panel 101 of the ultra-high voltage transformer 100 through the column 11, so that the bracket 1 is installed on the low-voltage bushing elevation seat panel 101 of the ultra-high voltage transformer 100; the position of the support rod 12 and the support plate 13 on the column 11 is adjusted according to the maintenance position and the support rod 12 is fixed, so as to adjust the maintenance height; the position of the support plate 13 on the support rod 12 is adjusted according to the maintenance position, so as to adjust the horizontal position and make the two support plates The ends of the support plates 13 are abutted against each other, and the maintenance personnel stand on the support plates 13 and are located in the first protection zone 61; the position of the protection rod 22 on the support plate 13 is adjusted by lifting and fixing the protection rod 22 so that the position of the guardrail 21 is adapted to the height of the maintenance personnel, thereby effectively protecting the maintenance personnel; the photovoltaic component 41 converts solar energy into electrical energy and stores it in the energy storage component 42. In hot weather, the fan 31 is powered by the energy storage component 42 and moves along the arc track 32 to blow air to the maintenance personnel to cool them down.

[0066] Example 2

[0067] The present application provides a maintenance method for a maintenance support assembly of a UHV transformer as in the first embodiment, such as Figure 10 As shown, the following steps are included:

[0068] S1: Fix the column to the low-voltage bushing lifting seat panel of the ultra-high voltage transformer, adjust the positions of the support rod and the support plate on the column according to the maintenance position, and fix the support rod.

[0069] First, the lower end of the column can be fixed to the low-voltage bushing riser panel using a mounting plate and bolt kit. The bracket can then be installed between the two UHV transformers. The support plate between the two support poles provides standing space for maintenance personnel.

[0070] Then, the positions of the support rod and the support plate on the column are adjusted according to the maintenance position. Specifically, the sliding protrusion of the sleeve slides along the first sliding groove. After reaching the target position, the sliding protrusion can be fixed by cooperating with the threaded member, the through hole and the threaded hole, thereby fixing the position of the support rod and the support plate.

[0071] S2: The positions of the support plates on the support rods are adjusted according to the maintenance position, and the ends of the two support plates are made to abut against each other. The maintenance personnel stand on the support plates and are located in the first protection zone.

[0072] The position of the two support plates on the support rod is adjusted according to the number of maintenance personnel. If there is only one maintenance personnel, the ends of the two support plates are placed against each other, and the ends of the two guardrails are placed against each other to form a first protection zone. The maintenance personnel stand on the two support plates and are located within the first protection zone. The two support plates can be moved together on the support rod to adjust the horizontal maintenance position. After adjustment, the maintenance personnel can stand on the two support plates using auxiliary tools such as ladders.

[0073] If two maintenance personnel are present, the two support plates and guardrails are separated. Two bars are fixed to the guardrails to form the second and third protection zones. The two maintenance personnel stand on the two support plates, respectively, within the second and third protection zones. The two support plates can be moved on the support bars to adjust the horizontal maintenance positions of the two maintenance personnel. After adjustment, the two maintenance personnel can stand on the two support plates separately using auxiliary tools such as ladders.

[0074] S3: Lift and adjust the position of the protection bar on the support plate and fix the protection bar so that the position of the protection bar is adapted to the height of the maintenance personnel.

[0075] Maintenance personnel standing behind the support plate can adjust the guardrail's position according to their height. Normally, the energy storage device powers the electromagnet, which secures the guardrail and guardrail together. To adjust the guardrail, the electromagnet is de-energized, causing the guardrail to rise and fall to adjust the height. Once adjustment is complete, the electromagnet is re-energized, securing the guardrail and guardrail in place, allowing maintenance personnel to resume their work.

[0076] S4: The photovoltaic assembly converts solar energy into electrical energy and stores it in an energy storage component. The fan is powered by the energy storage component and moves along an arc track to blow air toward the maintenance personnel to cool them down.

[0077] In hot weather, maintenance personnel can turn on the fan and the drive motor during the maintenance process. The fan moves back and forth along the arc track to blow air to the first protection zone, the second protection zone or the third protection zone to cool the maintenance personnel.

[0078] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0079] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A maintenance bracket assembly for a UHV transformer, characterized in that: include: The bracket includes multiple columns, support rods and support plates. The columns are suitable for fixed connection with the low-voltage bushing lifting seat panel of the ultra-high voltage transformer. Two support rods are provided and fixedly arranged on the columns in a liftable manner. Two support plates are provided and movably arranged between the support rods along the length direction of the support rods. A protection assembly includes two arc-shaped guardrails and guard rods respectively fixed to the guardrails. The two guardrails are respectively fixedly mounted on the two support plates via corresponding guard rods and can be raised and lowered. When the opposite ends of the two support plates abut against each other, the ends of the two guardrails abut against each other and enclose a first protection zone. An air cooling assembly includes a fan and a curved track provided on the guardrail. The fan is provided on the curved track and can move along the curved track. The fan is used to blow air toward the first protection zone. The power supply assembly includes a photovoltaic assembly, an energy storage component and a connecting wire. The photovoltaic assembly and the energy storage component are arranged on the support rod. The energy storage component connects the photovoltaic assembly and the connecting wire, and the connecting wire is connected to the fan.

2. The maintenance support assembly for the UHV transformer according to claim 1, characterized in that: The protective assembly further includes two shift rods. When the two support plates move away from each other along the length direction of the support rods and separate, the ends of the two protective rails separate. The two shift rods are respectively fixed to the ends of the two protective rails and respectively enclose a second protective area and a third protective area. The fans on the two protective rails are respectively used to blow air to the second protective area and the third protective area.

3. The maintenance support assembly for the UHV transformer according to claim 2, characterized in that: When the two guardrails are separated, the two ends of the lever are fixedly connected to the two ends of the guardrails via the first fixing member; When the two guardrails are against each other, the two ends of the guardrails are fixedly connected by a second fixing member, and the second fixing member includes a snap member or a magnetic member.

4. The maintenance support assembly for the UHV transformer according to claim 1, characterized in that: It also includes a positioning assembly, the positioning assembly includes a first matching portion and a second matching portion, the two support rods are provided with guide grooves extending along the length direction of the support rods on the opposite side walls, and the support plate is provided with guide blocks on the opposite side walls, and the guide blocks are inserted into the guide grooves; The first matching portion is arranged on the guide block, and the second matching portion is arranged on the guide groove. When the support plate moves to different positions along the length direction of the support rod, the first matching portion and the second matching portion cooperate to position the support plate on the support rod.

5. The maintenance support assembly for the UHV transformer according to claim 4, characterized in that: One of the first fitting part and the second fitting part is a groove, and the other is an elastic column. The end of the elastic column is arc-shaped. When the support plate moves to different positions along the length direction of the support rod, the end of the elastic column is embedded in the groove.

6. The maintenance support assembly for the UHV transformer according to claim 1, characterized in that: A plurality of protective rods are fixedly connected to one of the protective rails, each of which has an arc-shaped cross section. An arc-shaped through hole is formed on the support plate, and the protective rods pass through the arc-shaped through hole and abut against the inner wall of the arc-shaped through hole. The protective component also includes a magnetic conductive material and an electromagnet. The magnetic conductive material is provided on one side wall of the protective rod, and the arc-shaped electromagnet is embedded on the inner wall of the arc-shaped through hole. The electromagnet is tightly attached to the magnetic conductive material and is connected to the energy storage component through the connecting line. When the electromagnet is energized, the electromagnet fixes the protective rod to the support plate by absorbing the magnetic conductive material.

7. The maintenance support assembly for the UHV transformer according to claim 1, characterized in that: The air cooling assembly further includes a fan frame, a drive motor, a gear, an arc-shaped rack and an induction element, wherein the fan frame is arranged on the arc track, the fan is arranged on the fan frame, the drive motor is fixed to the fan frame and connected to the energy storage element through the connecting line, and the gear is connected to the drive motor; The arc-shaped rack is fixed to the arc-shaped track, the arc-shaped rack is engaged with the gear, the induction member is arranged at both ends of the arc-shaped track and connected to the drive motor, and the induction member is used to sense the fan frame and drive the drive motor to switch forward or reverse.

8. The maintenance support assembly for the UHV transformer according to claim 1, characterized in that: The bracket further includes four sleeves, which are respectively inserted into the two ends of the two support rods. The four columns are provided and correspond to the four sleeves respectively. A first slide groove and a second slide groove of the same structure are provided on the opposite side walls of the column. The first slide groove and the second slide groove extend along the height direction of the column. The sleeve is provided with a sliding protrusion, and the sliding protrusion is slidably set in the first slide groove. A fastener passes through the column between the first slide groove and the second slide groove and fixes the sliding protrusion to the column.

9. The maintenance support assembly for the UHV transformer according to claim 1, characterized in that: The power supply assembly further includes a photovoltaic support frame, and the photovoltaic support frame includes a bottom plate, a first support, a first elastic hook, a first limit block, a second support, a second elastic hook and a second limit block; The bottom plate is fixed to one end of the support rod, the first support and the second support are fixed to the bottom plate at intervals, and the height of the first support is greater than that of the second support, one end of the first elastic hook is fixed to the first support and a first elastic slot is formed on the first elastic hook, and one end of the second elastic hook is fixed to the second support and a second elastic slot is formed on the second elastic hook; The first limit block and the second limit block are fixed at intervals on the bottom of the photovoltaic component, the first limit block is clamped in the first elastic slot, and the second limit block is clamped in the second elastic slot, so that the photovoltaic component is tilted on the bottom plate.

10. A maintenance method for the maintenance support assembly of a UHV transformer according to any one of claims 1 to 9, characterized in that: The following steps are involved: The column is fixedly connected to the low-voltage bushing lifting seat panel of the ultra-high voltage transformer, and the position of the support rod and the support plate on the column is adjusted according to the maintenance position, and the support rod is fixed; Adjust the position of the support plate on the support rod according to the maintenance position, and make the ends of the two support plates abut against each other, and the maintenance personnel stand on the support plate and are located in the first protection area; Lifting and adjusting the position of the guardrail on the support plate and fixing the guardrail so that the position of the guardrail is adapted to the height of the maintenance personnel; The photovoltaic assembly converts solar energy into electrical energy and stores it in an energy storage component. The fan is powered by the energy storage component and moves along an arc track to blow air toward the maintenance personnel to cool them down.

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