Device for improving maintenance safety in high-voltage switch cabinet

Abstract

The utility model relates to the field of high-voltage switch cabinets, and discloses a device for improving maintenance safety in a high-voltage switch cabinet, and the device comprises a transmitting grating assembly, a receiving grating assembly and a monitoring controller, the transmitting grating assembly comprises a first housing and a transmitting grating strip, the transmitting grating strip is connected to the first housing, and the first housing is connected to a cabinet body; the receiving grating assembly comprises a second shell, a receiving grating strip and a signal emitter, the receiving grating strip and the signal emitter are connected to the second shell, the receiving grating strip is used for receiving infrared rays emitted by the emitting grating strip, the second shell is connected to the cabinet body, and the signal emitter receives signals of the grating strip and pushes the signals to the monitoring controller. The body of a maintainer penetrates between the transmitting grating strip and the receiving grating strip to prevent the receiving grating strip from receiving infrared rays transmitted by the transmitting grating strip, and the signal transmitter receives signals of receiving interruption of infrared ray signals of the receiving grating strip and pushes the signals to the monitoring controller to warn the maintainer to pay attention to the distance between the maintainer and an electrified body. And the personal safety of maintainers is ensured.

Description

Technical Field

[0001] This application relates to the technical field of high - voltage switch cabinets, and particularly to a device for improving the safety of maintenance inside high - voltage switch cabinets. Background Technique

[0002] Power plants and substations in the power system are equipped with different numbers of high - voltage switch cabinets. Due to the long - term operation of the equipment, it is inevitable that switch electrical circuits or mechanical failures will occur, and emergency repairs are required. At this time, when cleaning, maintaining or carrying out other work inside the high - voltage switch cabinet, usually the high - voltage bus and the static contacts on the bus side are still energized, and the energized part is only blocked by an insulating baffle.

[0003] After the handcart of the high - voltage switch body is pulled out of the compartment, usually an insulating baffle will fall at the position of the static contact of the switch, covering the energized contact part. As the operation years of the equipment increase, there are problems such as the deformation of the insulating baffle, the jamming of the insulating baffle and its inability to fall normally, resulting in the exposure of the energized part; or due to the current flowing through the busbar of the high - voltage bus, long - term heating causes a certain degree of aging of the insulating baffle, and the insulation performance gradually decreases, further resulting in an insufficient safety distance.

[0004] When working inside the cabinet in the above - mentioned situation, it is necessary to set up a special person for supervision. Once the supervisor is not in place or although the person is in place but fails to fulfill the supervision responsibility, and once the operator does not have basic electrical working knowledge and safety working skills, it often leads to personal injury accidents. In the system, unsafe accidents caused by insufficient safety distance or even accidental contact with the energized part are common. Utility Model Content

[0005] In order to give an alarm prompt in time when the distance between the maintenance personnel and the energized body is less than the minimum safety distance, reduce the possibility of personal electric shock accidents, and ensure the personal safety of the maintenance personnel, this application provides a device for improving the safety of maintenance inside high - voltage switch cabinets.

[0006] A device for improving the safety of maintenance inside high - voltage switch cabinets provided by this application adopts the following technical solutions:

[0007] A device for improving the safety of maintenance inside high - voltage switch cabinets includes a transmitting grating assembly, a receiving grating assembly and a monitoring controller. The transmitting grating assembly includes a first housing and transmitting grating bars. The transmitting grating bars are connected to one side of the first housing. The first housing is used to connect to the cabinet body. The receiving grating assembly includes a second housing, receiving grating bars and a signal transmitter. The receiving grating bars are connected to the second housing. The receiving grating bars are opposite to the transmitting grating bars. The receiving grating bars are used to receive the infrared rays emitted by the transmitting grating bars. The second housing is used to connect to the cabinet body. The signal transmitter is connected to the second housing. The signal transmitter sends the signal of the receiving grating bars to the monitoring controller.

[0008] By adopting the above technical solution, the transmitting grating assembly and the receiving grating assembly are connected in the cabinet. When a part of the maintenance personnel's body passes through between the transmitting grating bars and the receiving grating bars, it obstructs the receiving grating bars from receiving the infrared rays emitted by the transmitting grating bars. The receiving grating bars transmit the signal of not receiving infrared rays to the signal transmitter, and then the signal transmitter pushes the signal to the monitoring controller, so as to warn the maintenance personnel to pay attention to the distance from the live body and ensure the personal safety of the maintenance personnel.

[0009] Preferably, it further includes fixed magnets. There are several fixed magnets, which are divided into two groups. The two groups of fixed magnets are respectively connected to the first housing and the second housing. The side of the fixed magnet away from the first housing and the second housing is used to adsorb to the cabinet.

[0010] By adopting the above technical solution, the cabinet is mostly made of metal. The first housing and the second housing are directly connected to the cabinet through the fixed magnets, which is convenient for realizing the installation between the first housing and the second housing and the cabinet.

[0011] Preferably, one group of the fixed magnets has two, and the two fixed magnets in the same group are symmetrically distributed along the length direction of the first housing or the second housing.

[0012] By adopting the above technical solution, one group of magnets has two, and the two magnets are respectively located on both sides of the length direction of the first housing or the second housing, which helps to reduce the production cost and is convenient for adjusting the position and angle of the first housing or the second housing.

[0013] Preferably, the transmitting grating assembly further includes an infrared emitter, and the infrared emitter is connected to the first housing. The infrared emitter is used to emit infrared rays.

[0014] By adopting the above technical solution, by observing the position where the infrared rays emitted by the infrared emitter irradiate on the first housing, it helps the staff to judge whether the transmitting grating bars and the receiving grating bars are facing each other, and improves the accuracy of the installation of the transmitting grating bars and the receiving grating bars.

[0015] Preferably, the receiving grating assembly further includes an infrared receiver, and the infrared receiver is connected to the second housing. The infrared receiver is used to receive the infrared rays emitted by the infrared emitter. When the infrared emitter and the infrared receiver are facing each other, the infrared receiver controls the infrared emitter to stop emitting infrared rays.

[0016] By adopting the above technical solution, the infrared receiver receives the infrared rays emitted by the infrared emitter, and when the infrared receiver and the infrared emitter are facing each other, it controls the infrared emitter to stop emitting infrared rays, so as to prompt the staff that the transmitting grating bars and the receiving grating bars are aligned, and improves the accuracy of the installation of the transmitting grating bars and the receiving grating bars.

[0017] Preferably, it further includes a power supply assembly. There are several power supply assemblies, and the several power supply assemblies are respectively connected to the first housing and the second housing. The several power supply assemblies are respectively connected to and supply power to the infrared emitter, the infrared receiver, and the signal emitter through wires.

[0018] By adopting the above technical solution, the power supply assembly is used to provide electric energy for the infrared emitter, the infrared receiver, and the signal emitter, reducing the limitation of the power connection wires on the emission grating assembly and the reception grating assembly, and improving the flexibility of installation of the emission grating assembly and the reception grating assembly.

[0019] Preferably, the monitoring controller is used to display the working states of the infrared emitter, the infrared receiver, and the signal emitter, the power level of the power supply assembly, and the alarm state.

[0020] By adopting the above technical solution, observing the working states of the infrared emitter, the infrared receiver, and the signal emitter, the power level of the power supply assembly, and the alarm state through the monitoring controller is convenient for replacing the power supply assembly in time, ensuring the normal use of the infrared emitter, the infrared receiver, and the signal emitter, and protecting the personal safety of maintenance personnel.

[0021] Preferably, it further includes a buzzer. The buzzer is used to receive the signal from the signal emitter and give an alarm.

[0022] By adopting the above technical solution, the buzzer gives an alarm to remind the maintenance personnel that the distance between them and the live body is about to be less than the minimum safety distance of the live body, which helps the maintenance personnel control the distance from the live body and protects the personal safety of the maintenance personnel.

[0023] Preferably, it further includes a platform server. The platform server is connected to several monitoring controllers.

[0024] By adopting the above technical solution, the platform server is connected to several monitoring controllers, which is convenient for the staff to observe the maintenance states of multiple high-voltage switch cabinets and improves the management efficiency of the staff.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Connect the emission grating assembly and the reception grating assembly inside the cabinet. When a part of the maintenance personnel's body passes through between the emission grating bars and the reception grating bars, it blocks the reception grating bars from receiving the infrared rays emitted by the emission grating bars. The reception grating bars transmit the signal of not receiving infrared rays to the signal emitter, and then the signal emitter pushes the signal to the monitoring controller, so as to warn the maintenance personnel to pay attention to the distance from the live body and ensure the personal safety of the maintenance personnel;

[0027] 2. The cabinet body is mostly made of metal. The first shell and the second shell are directly connected to the cabinet body through fixed magnets, which facilitates the installation between the first shell, the second shell and the cabinet body.

[0028] 3. The infrared receiver receives the infrared rays emitted by the infrared emitter, and when the infrared receiver is directly opposite to the infrared emitter, it controls the infrared emitter to stop emitting infrared rays to prompt the staff that the transmitting grating bar and the receiving grating bar are aligned, improving the installation accuracy of the transmitting grating bar and the receiving grating bar. Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of a device for improving the maintenance safety inside a high-voltage switchgear.

[0030] Figure 2 It is a schematic structural diagram of a device for improving the maintenance safety inside a high-voltage switchgear.

[0031] Figure 3 It is a schematic structural diagram of the monitoring component.

[0032] Figure 4 It is a schematic control principle block diagram of a device for improving the maintenance safety inside a high-voltage switchgear.

[0033] Description of the Reference Numerals:

[0034] 1. Transmitting grating component; 11. First shell; 111. First installation groove; 112. First receiving groove; 12. Transmitting grating bar; 13. Infrared emitter; 14. First power supply cover;

[0035] 2. Receiving grating component; 21. Second shell; 211. Second installation groove; 212. Second receiving groove; 22. Receiving grating bar; 23. Signal transmitter; 24. Infrared receiver; 25. Second power supply cover;

[0036] 3. Monitoring component; 31. Monitoring controller; 311. Body; 312. Display screen; 32. Buzzer;

[0037] 4. Fixed magnet;

[0038] 5. Power supply component;

[0039] 6. Platform server. Detailed Embodiments

[0040] The following further elaborates on this application with reference to the drawings.

[0041] Refer to Figure 1 and Figure 2, an apparatus for improving the safety of maintenance inside a high-voltage switchgear cabinet disclosed in an embodiment of the present application includes a transmitting grating assembly 1, a receiving grating assembly 2, and a fixing magnet 4. The transmitting grating assembly 1 includes a first housing 11 and a transmitting grating bar 12. A first mounting groove 111 is provided on one side of the first housing 11, and the transmitting grating bar 12 is embedded in the first mounting groove 111. The receiving grating assembly 2 includes a second housing 21 and a receiving grating bar 22. A second mounting groove 211 is provided on one side of the second housing 21, and the receiving grating bar 22 is embedded in the second mounting groove 211. The receiving grating bar 22 faces the transmitting grating bar 12, and the receiving grating bar 22 is used to receive the infrared rays emitted by the transmitting grating bar 12. A plurality of fixing magnets 4 are provided. The plurality of fixing magnets 4 are divided into two groups, and the two groups of fixing magnets 4 are respectively fixedly connected to one side of the first housing 11 away from the notch of the first mounting groove 111 and one side of the second housing 21 away from the notch of the second mounting groove 211. In this embodiment, four fixing magnets 4 are provided, and two fixing magnets 4 in the same group are respectively located on both sides of the first housing 11 or the second housing 21 along the length direction. The surface of the fixing magnet 4 away from the first housing 11 or the second housing 21 is used to adsorb to the cabinet body.

[0042] The transmitting grating assembly 1 further includes an infrared emitter 13. The infrared emitter 13 is embedded in the first mounting groove 111. The infrared emitter 13 is located on one side of the transmitting grating bar 12 along the length direction of the transmitting grating bar 12, and the infrared emitter 13 is used to emit infrared rays.

[0043] The receiving grating assembly 2 further includes an infrared receiver 24. The infrared receiver 24 is embedded in the second mounting groove 211. The infrared receiver 24 is located on one side of the receiving grating bar 22 along the length direction of the receiving grating bar 22, and the infrared receiver 24 is used to receive the infrared rays emitted by the infrared emitter 13. When the infrared emitter 13 and the infrared receiver 24 are facing each other, the infrared receiver 24 controls the infrared emitter 13 to stop emitting infrared rays.

[0044] Refer to Figure 2 and Figure 3 , an apparatus for improving the safety of maintenance inside a high-voltage switchgear cabinet further includes a monitoring component 3. The monitoring component 3 includes a monitoring controller 31. The receiving grating assembly 2 further includes a signal transmitter 23. The signal transmitter 23 is embedded in the second mounting groove 211. The signal transmitter 23 is located on the side of the receiving grating bar 22 away from the infrared receiver 24, and the signal transmitter 23 is used to receive the signal of the receiving grating bar 22 and send it to the monitoring controller 31. In this embodiment, the signal transmitter 23 uses a wireless method.

[0045] Refer to Figure 1 and Figure 2, A device for improving the safety of maintenance inside a high-voltage switchgear cabinet further includes a power supply assembly 5. On one side of the first housing 11 away from the notch of the first installation groove 111, there is a first accommodation groove 112. The emission grating assembly 1 further includes a first power supply cover 14. The first power supply cover 14 is rotatably connected to the first housing 11 and covers the notch of the first accommodation groove 112. The rotation axis of the first power supply cover 14 is parallel to the length direction of the first housing 11. On one side of the second housing 21 away from the notch of the second installation groove 211, there is a second accommodation groove 212. The receiving grating assembly 2 further includes a second power supply cover 25. The second power supply cover 25 is rotatably connected to the second housing 21 and covers the notch of the second accommodation groove 212. The rotation axis of the second power supply cover 25 is parallel to the length direction of the second housing 21. There are several power supply assemblies 5, and the several power supply assemblies 5 are respectively embedded in the first accommodation groove 112 or the second accommodation groove 212. The several power supply assemblies 5 are respectively connected to the infrared emitter 13, the infrared receiver 24, and the signal emitter 23 through wires. In this embodiment, the power supply assembly 5 uses a lithium battery. There are three power supply assemblies 5. The three power supply assemblies 5 are respectively connected to and supply power to the infrared emitter 13, the infrared receiver 24, and the signal emitter 23. One power supply assembly is embedded in the first accommodation groove, and the other two power supply assemblies are embedded in the second installation groove.

[0046] Referring to Figure 3 and Figure 4 , A device for improving the safety of maintenance inside a high-voltage switchgear cabinet further includes a platform server 6. The monitoring controller 31 includes a body 311 and a display screen 312. The display screen 312 is fixedly connected to the body 311. The display screen 312 is connected to the platform server 6. The display screen 312 is used to display the working states of the infrared emitter 13, the infrared receiver 24, and the signal emitter 23 and the power level of the power supply assembly 5.

[0047] The monitoring component 3 further includes a buzzer 32. The buzzer 32 is fixedly connected to the upper end of the body 311. The buzzer 32 is used to receive the signal from the signal emitter 23 and give an alarm.

[0048] The platform server 6 is connected to several monitoring controllers 31. The platform server 6 is used to display the working states of the infrared emitter 13, the infrared receiver 24, and the signal emitter 23 in each group of gratings, the power level of the power supply assembly 5, and whether the buzzer 32 is triggered to give an alarm.

[0049] The implementation principle of a device for improving the maintenance safety inside a high-voltage switchgear in an embodiment of this application is as follows: First, the second housing 21 is installed on the cabinet body through the fixed magnet 4, and then the first housing 11 is installed. The infrared emitter 13 emits infrared rays to irradiate the second housing 21. When the infrared emitter 13 is directly opposite to the infrared receiver 24, the infrared receiver 24 emits a signal to control the infrared emitter 13 to stop emitting infrared rays, so as to prompt that the emission grating assembly 1 and the reception grating assembly 2 are directly opposite. The fixation between the first housing 11 and the cabinet body is realized through the fixed magnet 4.

[0050] When maintenance personnel are working, if a part of the maintenance personnel's body is located between the emission grating bar 12 and the reception grating bar 22, it obstructs the reception grating bar 22 from receiving the infrared rays emitted by the emission grating bar 12. The reception grating bar 22 sends the signal of the interruption of the infrared signal reception to the signal transmitter 23. The signal transmitter 23 sends the signal to the monitoring controller 31, and the buzzer 32 gives an alarm to prompt the maintenance personnel to pay attention to the safety distance, and then pushes the signal to the platform server 6.

[0051] The above are all the preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A device for improving the safety of maintenance inside a high-voltage switchgear, characterized in that: It includes a transmitting grating assembly (1), a receiving grating assembly (2), and a monitoring controller (31); the transmitting grating assembly (1) includes a first housing (11) and a transmitting grating bar (12); the transmitting grating bar (12) is connected to one side of the first housing (11); the first housing (11) is used to connect to the cabinet body; the receiving grating assembly (2) includes a second housing (21), a receiving grating bar (22), and a signal transmitter (23); the receiving grating bar (22) is connected to the second housing (21); the receiving grating bar (22) is opposite to the transmitting grating bar (12); the receiving grating bar (22) is used to receive the infrared rays emitted by the transmitting grating bar (12); the second housing (21) is used to connect to the cabinet body; the signal transmitter (23) is connected to the second housing (21); the signal transmitter (23) sends the signal of the receiving grating bar (22) to the monitoring controller (31).

2. The device for improving the safety of maintenance inside a high-voltage switchgear according to claim 1, wherein: It further includes fixing magnets (4); there are several fixing magnets (4); the several fixing magnets (4) are divided into two groups; the two groups of fixing magnets (4) are respectively connected to the first housing (11) and the second housing (21); the side of the fixing magnet (4) away from the first housing (11) and the second housing (21) is used to adsorb to the cabinet body.

3. The device for improving the maintenance safety inside a high-voltage switchgear according to claim 2, wherein: One group of the fixing magnets (4) has two; the two fixing magnets (4) in the same group are symmetrically distributed along the length direction of the first housing (11) or the second housing (21).

4. The device for improving the maintenance safety inside a high-voltage switchgear according to claim 1, characterized in that: The transmitting grating assembly (1) further includes an infrared emitter (13); the infrared emitter (13) is connected to the first housing (11); the infrared emitter (13) is used to emit infrared rays.

5. The device for improving the maintenance safety inside the high-voltage switchgear according to claim 4, characterized in that: The receiving grating assembly (2) further includes an infrared receiver (24); the infrared receiver (24) is connected to the second housing (21); the infrared receiver (24) is used to receive the infrared rays emitted by the infrared emitter (13); when the infrared emitter (13) is opposite to the infrared receiver (24), the infrared receiver (24) controls the infrared emitter (13) to stop emitting infrared rays.

6. The device for improving the maintenance safety inside a high-voltage switchgear according to claim 5, wherein: It further includes power supply assemblies (5); there are several power supply assemblies (5); the several power supply assemblies (5) are respectively connected to the first housing (11) and the second housing (21); the several power supply assemblies (5) are respectively connected to and supply power to the infrared emitter (13), the infrared receiver (24), and the signal transmitter (23) through wires.

7. The device for improving the maintenance safety inside the high-voltage switchgear according to claim 6, characterized in that: The monitoring controller (31) is used to display the working states of the infrared emitter (13), the infrared receiver (24), and the signal transmitter (23), the power of the power supply assemblies (5), and the alarm state.

8. The device for improving the maintenance safety inside a high-voltage switchgear according to claim 1, characterized in that: It further includes a buzzer (32); the buzzer (32) is used to receive the signal from the signal transmitter (23) and give an alarm.

9. The device for improving the safety of maintenance inside a high-voltage switchgear according to claim 1, characterized in that: It further includes a platform server (6); the platform server (6) is connected to several monitoring controllers (31).

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