Overhaul platform for inspection and maintenance of transformer
By installing through-beam photoelectric sensors and insulation structures on the transformer maintenance platform, the risk of electric shock from workers accidentally touching high-voltage areas was eliminated, enabling safe inspection and maintenance operations and ensuring the personal safety of workers.
Patent Information
- Application Number
- CN202422555083.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-10-22
AI Technical Summary
During transformer inspection and maintenance, workers on existing maintenance platforms are prone to accidentally touching high-voltage areas with their hands or tools, leading to electric shock risks and threatening their lives.
Design a maintenance platform for transformer inspection and maintenance. Use a through-beam photoelectric sensor to detect when a hand or tool enters the high-voltage area and trigger an alarm. Combine with equipotential lines and ground wires to ensure safe current conduction and prevent electric shock.
When staff accidentally enter a high-voltage area, an alarm should be issued in a timely manner to prevent electric shock accidents and ensure personal safety. The danger of electric current should be avoided by using equipotential lines and ground wires.
Smart Images
Figure CN223757907U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of transformer maintenance, particularly to a maintenance platform for transformer inspection and maintenance. BACKGROUND
[0002] In the complex process of transformer inspection and maintenance, the importance of the maintenance platform is particularly prominent. It is not only a bridge between maintenance personnel and transformer equipment, but also a key to ensure the smooth progress of inspection and maintenance work. A high-quality maintenance platform can not only provide stable and safe working environment for maintenance personnel, but also help them complete detection, repair and maintenance tasks more efficiently and accurately. At the same time, the rationality of design, the stability of structure and the convenience of operation of the maintenance platform are directly related to the quality and efficiency of inspection and maintenance work. Therefore, in the process of transformer inspection and maintenance, the importance of the maintenance platform must be fully recognized, and sufficient resources and efforts must be invested to ensure its quality and performance, so as to ensure the smooth progress of inspection and maintenance work and the safe and stable operation of equipment.
[0003] The existing maintenance platform is mainly installed on the side of the transformer, and the maintenance platform is equipped with a stable and easy-to-climb ladder, so that the workers can safely climb onto the maintenance platform by means of the ladder, and then carry out comprehensive inspection and maintenance work on the transformer.
[0004] However, in the actual operation of transformer inspection and maintenance, the hands of the workers or the maintenance tools held by the workers are extremely easy to accidentally touch the high-voltage area of the transformer, resulting in the occurrence of electric shock risk, which poses a serious threat to the life safety of the workers. SUMMARY
[0005] The utility model provides a maintenance platform for transformer inspection and maintenance, which can issue an alarm to remind the workers when they accidentally touch the high-voltage area of the transformer, so as to avoid electric shock.
[0006] In order to solve the above problems, the utility model adopts the technical scheme that a kind of maintenance platform for transformer inspection and maintenance, including support beam, support beam is fixed on the oil conservancy cabinet foot of transformer to be overhauled, support beam is fixed with support base plate, and insulating pad is arranged between support base plate and support beam, and the side of support base plate close to the transformer to be overhauled is provided with opposite emission type photoelectric sensor, and opposite emission type photoelectric sensor is located between support base plate and the high voltage area of transformer to be overhauled, and the light between the emitter and receiver of opposite emission type photoelectric sensor is parallel with the length direction of support base plate, and opposite emission type photoelectric sensor is connected with alarm.The hand of staff or the maintenance tool held in hand inadvertently enters the high voltage area of transformer, these objects will shield the light between the emitter and receiver of opposite emission type photoelectric sensor.Due to the obstruction of light, the receiver of opposite emission type photoelectric sensor will not receive signal, at this moment, opposite emission type photoelectric sensor will control alarm to issue alarm, remind staff to withdraw hand or tool.Therefore, this maintenance platform can issue alarm in time when staff miscontact high voltage area of transformer, to effectively prevent electric shock accident, ensure the personal safety of staff.
[0007] Preferably, the opposite emission type photoelectric sensor has at least five groups, and all the opposite emission type photoelectric sensors are uniformly distributed along the vertical direction, and the distance between every two adjacent opposite emission type photoelectric sensors is 100mm.
[0008] Preferably, the support base plate is fixed with a guardrail around, and the opposite emission type photoelectric sensor is fixed on the guardrail.
[0009] Preferably, the utility model further comprises a ladder, and the ladder is fixed on the outer wall of the transformer to be overhauled, and an insulating pad is arranged between the ladder and the outer wall of the transformer to be overhauled.
[0010] Preferably, the support base plate and the ladder are both provided with insulating fixing pieces, and the insulating fixing pieces can fix the support base plate on the support beam and fix the ladder on the outer wall of the transformer to be overhauled.
[0011] Preferably, the insulating fixing member is an insulating bolt, and the bolt head and the unthreaded section of the bolt rod of the insulating bolt are both provided with an insulating layer. The threaded section of the bolt rod is used to achieve firm fixed connection, and the bolt head and the unthreaded section of the bolt rod are both covered with the insulating layer, effectively achieving electrical isolation and ensuring safety in use.
[0012] Preferably, the material of the insulating pad and the insulating layer of the insulating bolt is epoxy resin. Epoxy resin is an excellent insulating material, which has high electrical insulation performance and can effectively isolate current, prevent electrical leakage of electrical equipment and protect the safety of workers.
[0013] Preferably, an equipotential line is connected between the support base plate, the guardrail and the ladder, and a ground wire is connected to the support base plate. The support base plate, the guardrail and the ladder are all electrically connected through the equipotential line, so as to ensure that there is no potential difference between the three, effectively preventing the generation of current. At the same time, the ground wire connection provided on the support base plate can safely lead any potential current into the ground, greatly ensuring the personal safety of workers.
[0014] It can be seen from the above technical scheme that the utility model has the advantages that when the hands or the held maintenance tools of the workers accidentally intrude into the high-voltage area of the transformer, these objects will block the light beam between the emitter and the receiver of the light barrier photoelectric sensor. At this time, the light barrier photoelectric sensor will quickly trigger the alarm to issue a warning, reminding the workers to withdraw the hands or the tools. At the same time, the equipotential line and the ground wire ensure the safe drainage of current and avoid any potential risk of electric shock. In summary, the maintenance platform can timely issue an alarm when the workers accidentally enter the high-voltage area of the transformer, thereby effectively preventing electric shock accidents and ensuring the personal safety of workers. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme of the utility model, the following will briefly introduce the drawings needed to be used in the description, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0016] Figure 1 It is a structural schematic view of the specific embodiment of the utility model.
[0017] Figure 2 It is a structural schematic view of the support base plate in the specific embodiment of the utility model.
[0018] Figure 3 It is a structural schematic view of the guardrail in the specific embodiment of the utility model.
[0019] Figure 4 It is a structural schematic view of the ladder in the specific embodiment of the utility model.
[0020] Figure 5 The structure diagram of the insulating bolt in the specific embodiment of the utility model.
[0021] Main figure mark explanation
[0022] In the figure: 1. transformer, 11. gas relay, 12. oil conservator foot, 2. support beam, 3. support bottom plate, 4. guardrail, 5. ladder, 6. insulating layer, 7. threaded section. Specific embodiment
[0023] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the utility model will be described clearly and completely in the following by combining the drawings in the specific embodiment. Obviously, the following described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the patent, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of the patent protection.
[0024] A kind of maintenance platform for transformer inspection and maintenance, as shown in Figure Figure 1 It includes support beam 2, support beam 2 is fixed on the oil conservator foot 12 of the transformer 1 to be overhauled, support beam 2 is fixed with support bottom plate 3, support bottom plate 3 is installed with opposite type photoelectric sensor on the side close to the transformer 1 to be overhauled, when the hand of staff or the maintenance tool held in hand inadvertently enters the high voltage area of transformer 1, opposite type photoelectric sensor will control alarm to issue warning, remind staff to withdraw hand or tool.
[0025] In the specific embodiment, support beam 2 adopts channel steel, and the two ends of support beam 2 are welded on the oil conservator foot 12 on the two sides of transformer 1. Support beam 2 is provided with two, and the two support beams 2 are parallel to each other. The upper surface of support beam 2 is bonded with insulating pad, and the material of insulating pad is epoxy resin. Support bottom plate 3 is fixed above insulating pad.
[0026] As shown in Figure Figure 2 In the specific embodiment, support bottom plate 3 specifically adopts the following structure: support bottom plate 3 includes rectangular frame, and patterned steel plate is welded in the inside of rectangular frame. Threaded hole is provided on rectangular frame, and insulating fixing piece is installed in threaded hole. The threaded section 7 of bolt shank of insulating bolt is provided with insulating layer 6, and the material of insulating layer 6 is also epoxy resin. The threaded section 7 of bolt shank of insulating bolt is screwed into threaded hole, so that support bottom plate 3 can be fixed on support beam 2. Figure 5 As shown in Figure
[0027] As Figure 3 shown, the support base plate 3 is welded with the guardrails 4 around the four sides, and the opposite light sensors are fixed on the guardrails 4 near the transformer 1 to be repaired by bolts, that is, the opposite light sensors are located between the support base plate 3 and the high-voltage area of the transformer 1 to be repaired. The opposite light sensors include a transmitter and a receiver, and the positions of the transmitter and the receiver correspond, that is, the light emitted by the transmitter can enter the receiver, and the light between the transmitter and the receiver is parallel to the length direction of the support base plate 3. At the same time, the opposite light sensors are provided with alarm devices, and when the receiver cannot receive the light emitted by the transmitter, the alarm device will alarm. There are at least five groups of opposite light sensors, and all the opposite light sensors are uniformly distributed along the vertical direction, and the distance between every two adjacent opposite light sensors is 100 mm. In this embodiment, there are five groups of opposite light sensors, and all the opposite light sensors are uniformly distributed along the vertical direction, and the distance between every two adjacent opposite light sensors is 100 mm. According to the order from high to low, the gas relay 11 of the transformer 1 enters the maintenance platform between the second and third opposite light sensors.
[0028] As Figure 4 shown, the outer wall of the transformer 1 to be repaired is also provided with a ladder 5, and the guardrails 4 are provided with switch doors corresponding to the upper end of the ladder 5. The ladder 5 and the outer wall of the transformer 1 to be repaired are also provided with insulating pads, and the ladder 5 is provided with threaded holes, and the threaded holes are provided with insulating fixing members. The insulating fixing members can fix the ladder 5 on the outer wall of the transformer 1 to be repaired. In this embodiment, the insulating fixing members are insulating bolts, and the threaded segments 7 of the bolt shanks of the insulating bolts are screwed into the threaded holes, so that the ladder 5 can be fixed on the outer wall of the transformer 1 to be repaired.
[0029] The support base plate 3, the guardrails 4 and the ladder 5 are connected with equipotential lines, and the equipotential lines are copper wires. The support base plate 3 is connected with a ground wire, and the ground wire is also a copper wire. One end of the ground wire is fixed on the support base plate 3 by bolts, and the other end of the ground wire is inserted into the ground.
[0030] The specific use process of the utility model is: when the staff ascends along the ladder 5 and stands on the support bottom plate 3 to carry out the patrol and maintenance work of the transformer 1, if the hand of the staff or the maintenance tool held by the staff inadvertently enters the high voltage area of the transformer 1, these objects will block the light path between the emitter and the receiver of the opposite type photoelectric sensor. Once the light is blocked, the receiver of the opposite type photoelectric sensor will immediately fail to receive the signal, at this time, the opposite type photoelectric sensor will automatically trigger the alarm, and clear alarm sound is sent to quickly remind the staff to withdraw the hand or tool from the high voltage area. In addition, once the transformer 1 occurs the electric leakage, the electric leakage current will be safely guided into the earth through the ground wire, thereby the personal safety of the staff is maximally guaranteed, and the staff is prevented from any potential danger.
[0031] It can be seen from the above implementation mode that the utility model has the beneficial effects that when the hand of the staff or the maintenance tool held by the staff inadvertently invades the high voltage area of the transformer, these objects will block the light beam between the emitter and the receiver of the opposite type photoelectric sensor. At this time, the opposite type photoelectric sensor will quickly trigger the alarm to send the warning, and remind the staff to withdraw the hand or tool. Meanwhile, the equipotential line and the ground wire ensure the safe diversion of the current, and avoid any potential electric shock risk. In summary, the maintenance platform can timely send the alarm when the staff mistakenly enters the high voltage area of the transformer, thereby effectively preventing the electric shock accident, and ensuring the personal safety of the staff.
[0032] The above description of the disclosed embodiments enables one of ordinary skill in the art to make or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the utility model is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A maintenance platform for transformer inspection and maintenance, characterized in that, The utility model provides an oil conservator support device for transformer, which comprises a support beam (2) fixed on the oil conservator foot (12) of the transformer (1) to be repaired, a support bottom plate (3) fixed on the support beam (2), an insulating pad arranged between the support bottom plate (3) and the support beam (2), a pair of light-sensing photoelectric sensors arranged on the side of the support bottom plate (3) close to the transformer (1) to be repaired, the light-sensing photoelectric sensors being located between the support bottom plate (3) and the high-voltage area of the transformer (1) to be repaired, the light rays between the emitter and the receiver of the light-sensing photoelectric sensors being parallel to the length direction of the support bottom plate (3), and an alarm connected to the light-sensing photoelectric sensors.
2. The transformer maintenance platform according to claim 1, wherein, The light-sensing photoelectric sensors are at least five groups, all the light-sensing photoelectric sensors are uniformly distributed along the vertical direction, and the distance between every two adjacent light-sensing photoelectric sensors is 100 mm.
3. The transformer maintenance platform according to claim 2, wherein, The support bottom plate (3) is provided with a guardrail (4) around, and the light-sensing photoelectric sensors are fixed on the guardrail (4).
4. The transformer maintenance platform according to claim 3, wherein, The utility model also comprises a ladder (5) fixed on the outer wall of the transformer (1) to be repaired, and an insulating pad arranged between the ladder (5) and the outer wall of the transformer (1) to be repaired.
5. The transformer maintenance platform according to claim 4, wherein, The support bottom plate (3) and the ladder (5) are provided with insulating fixing pieces, which can fix the support bottom plate (3) on the support beam (2) and fix the ladder (5) on the outer wall of the transformer (1) to be repaired.
6. The transformer maintenance platform according to claim 5, wherein, The insulating fixing pieces are insulating bolts, and the bolt head and the unthreaded section (7) of the bolt rod of the insulating bolts are provided with insulating layers (6).
7. The transformer maintenance platform according to claim 6, wherein, The insulating pad and the insulating layers (6) of the insulating bolts are made of epoxy resin.
8. The transformer maintenance platform according to claim 4, wherein, The support bottom plate (3), the guardrail (4) and the ladder (5) are connected with equipotential lines, and the support bottom plate (3) is connected with a ground wire.