Detection system of high-voltage switch cabinet

Abstract

The invention discloses a detection system of a high-voltage switch cabinet, which comprises a processor, a plurality of temperature sensors, a cooling mechanism and a display, and is characterized in that the processor is mounted on the outer wall of the high-voltage switch cabinet, the plurality of temperature sensors are mounted near a busbar joint and / or a moving and static contact, and one part of the cooling mechanism is mounted on the outer side of the high-voltage switch cabinet; the other part is installed inside the high-voltage switch cabinet and points to the busbar connector and / or the movable and static contacts, the displayer is installed on the outer wall of the high-voltage switch cabinet, and the temperature sensor, the cooling mechanism and the displayer are connected with the processor. Through the arrangement of the temperature sensor, the temperature near a plurality of bus bar joints and movable and static contacts in the high-voltage switch cabinet can be detected, the existing potential safety hazards can be found in time, and the service life of equipment is prolonged; through the arrangement of the cooling mechanism, the surfaces of the busbar joint and the moving and static contacts can be cooled, and the fire phenomenon caused by too high temperature is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment, and in particular to a detection system for a high-voltage switch cabinet. Background Art

[0002] High-voltage switchgear is a very important electrical equipment in the power system. At present, 10kV and 35kV metal-enclosed switchgear equipment has been widely used in various substations in the power system. In the long-term operation of electrical equipment, insulation degradation caused by electrical, thermal, chemical and other factors is inevitable.

[0003] During long-term operation, the moving and static contacts and busbar joints in the high-voltage switchgear may increase resistance in some areas due to latent defects in manufacturing or defects generated during operation, thereby causing the temperature of the contacts or joints to gradually increase, which can easily affect the service life of the equipment. Summary of the invention

[0004] The object of the present invention is to provide a detection system for a high-voltage switch cabinet to solve the above-mentioned technical problem.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A detection system for a high-voltage switch cabinet comprises a processor, a plurality of temperature sensors, a cooling mechanism and a display, wherein the processor is mounted on the inner wall of the high-voltage switch cabinet, a plurality of the temperature sensors are mounted near busbar joints and / or moving and static contacts, a portion of the cooling mechanism is mounted on the outside of the high-voltage switch cabinet, and another portion is mounted inside the high-voltage switch cabinet and points to the busbar joints and / or the moving and static contacts, the display is mounted on the outer wall of the high-voltage switch cabinet, and the temperature sensors, the cooling mechanism and the display are respectively connected to the processor.

[0007] Preferably, a cloud server and a wireless module are further included, and the processor is connected to the cloud server via the wireless module.

[0008] Preferably, the cooling mechanism comprises a liquid nitrogen supply source and a nozzle, the liquid nitrogen supply source is arranged on the outside of the high-voltage switch cabinet, and the nozzle is arranged inside the high-voltage switch cabinet and points to the busbar joint and / or the moving and static contacts.

[0009] As a further preference, it further includes an electric control valve and a connecting pipe, the liquid nitrogen supply source is connected to the nozzle via the connecting pipe, the electric control valve is provided on the connecting pipe, and the connecting electric control valve is connected to the processor.

[0010] Preferably, it further comprises a power master control switch, wherein the power master control switch is electrically connected to the high-voltage switch cabinet and connected to the processor.

[0011] As a preferred embodiment, it further comprises a warning light, and the warning light is arranged on the outer wall of the high-voltage switch cabinet.

[0012] As a further preference, it also includes a micro camera, and a plurality of the micro cameras are arranged on the inner wall of the high-voltage switch cabinet, and the micro cameras are facing the busbar connector and / or the moving and static contacts.

[0013] As a further preference, it also includes a smoke sensor and a flame sensor, both of which are installed on the inner wall of the high-voltage switch cabinet, and the warning light, the micro camera, the smoke sensor and the flame sensor are respectively connected to the processor.

[0014] As a further preference, it also includes a rotating sleeve, a limiting plate, a hand-held rod, a threaded rod and a flexible rod. The side wall of the high-voltage switch cabinet is provided with a mounting hole, the rotating sleeve is arranged in the mounting hole, two limiting plates are arranged at both ends of the rotating sleeve, and the two limiting plates are abutted against the inner walls of the two ends of the mounting hole. The hand-held rod is arranged on the limiting plate located on the outside of the high-voltage switch cabinet, the threaded rod passes through the rotating sleeve, and the threaded rod is threadedly connected to the rotating sleeve. A circular hole is opened at one end of the threaded rod located on the inner side of the high-voltage switch cabinet, and the flexible rod is arranged in the circular hole, and the temperature sensor is installed at the end of the flexible rod.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] In the present invention, by setting up a temperature sensor, it is possible to detect the temperature near multiple busbar joints and moving and static contacts inside the high-voltage switch cabinet, so that existing safety hazards can be discovered in time, which is convenient for improving the service life of the equipment; and by setting up a cooling mechanism, it is possible to cool the surface of the busbar joints and the moving and static contacts to avoid fire caused by excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the detection system of the high-voltage switchgear of the present invention;

[0018] Figure 2 It is a schematic diagram of the installation of the temperature sensor in the present invention.

[0019] In the figure: 1. Processor; 2. Temperature sensor; 3. Display; 4. Cloud server; 5. Wireless module; 6. Electric control valve; 7. Main power control switch; 8. Warning light; 9. Mini camera; 10. Smoke sensor; 11. Flame sensor; 12. Rotating sleeve; 13. Limiting piece; 14. Hand-held rod; 15. Threaded rod; 16. Flexible rod. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Figure 1 It is a structural diagram of the detection system of the high-voltage switchgear of the present invention; Figure 2 This is a schematic diagram of the installation of the temperature sensor in the present invention, please refer to Figure 1 to Figure 2As shown, a preferred embodiment is shown, and a detection system of a high-voltage switch cabinet is shown, including a processor 1, a plurality of temperature sensors 2, a cooling mechanism and a display 3. The processor 1 is installed on the outer wall of the high-voltage switch cabinet, and the plurality of temperature sensors 2 are installed near the busbar joint and / or the moving and static contacts. A part of the cooling mechanism is installed on the outside of the high-voltage switch cabinet, and the other part is installed inside the high-voltage switch cabinet and points to the busbar joint and / or the moving and static contacts. The display 3 is installed on the outer wall of the high-voltage switch cabinet, and the temperature sensor 2, the cooling mechanism and the display 3 are connected to the processor 1 respectively. In this embodiment, the temperature sensor 2 is used to detect the temperature near the busbar joint and / or the moving and static contacts. If the temperature near the busbar joint and / or the moving and static contacts is too high, there is a certain safety hazard. At this time, the staff can be reminded to perform maintenance. The temperature data detected by the temperature sensor 2 can be displayed on the display 3. When the temperature detected by the temperature sensor 2 exceeds a certain value, the processor 1 can automatically control the cooling mechanism to cool the surface of the busbar joint and / or the moving and static contacts to avoid causing a fire, and can increase the service life of the equipment.

[0024] Furthermore, as a preferred embodiment, a cloud server 4 and a wireless module 5 are further included, and the processor 1 is connected to the cloud server 4 via the wireless module 5. The cloud server 4 can remotely send control instructions to the processor 1, such as sending instructions to control the operation of the cooling mechanism, and the temperature of the busbar joint and / or the vicinity of the moving and static contacts can be remotely observed via the cloud server 4.

[0025] Further, as a preferred embodiment, the cooling mechanism includes a liquid nitrogen supply source and a nozzle, the liquid nitrogen supply source is arranged on the outside of the high-voltage switch cabinet, and the nozzle is arranged inside the high-voltage switch cabinet and points to the busbar joint and / or the moving and static contacts. It also includes an electric control valve 6 and a connecting pipe, the liquid nitrogen supply source and the nozzle are connected by a connecting pipe, and the connecting pipe is provided with an electric control valve 6, and the electric control valve 6 is connected to the processor 1. The liquid nitrogen supply source can pump liquid nitrogen into the connecting pipe, and the nozzle sprays it to the busbar joint and / or the moving and static contacts to achieve a cooling treatment of the busbar joint and / or the moving and static contacts. When the temperature detected by the temperature sensor 2 exceeds a certain value, the processor 1 can automatically control the electric control valve 6 to open, so that the liquid nitrogen can be smoothly sprayed to the busbar joint and / or the moving and static contacts.

[0026] Further, as a preferred embodiment, it also includes a power master control switch 7, which is electrically connected to the high-voltage switch cabinet, and the power master control switch 7 is connected to the processor 1. The power master control switch 7 is used to be electrically connected to the high-voltage switch cabinet. When the busbar joint and / or the moving and static contacts spontaneously ignite or the temperature is too high, the processor 1 can automatically control the power master control switch 7 to disconnect, so that the high-voltage switch cabinet is in a power-free state, which is convenient for improving the safety of the equipment.

[0027] Further, as a preferred embodiment, a warning light 8 is further included, and a warning light 8 is provided on the outer wall of the high-voltage switch cabinet. The warning light 8 is provided to serve as a prompt. When the temperature detected by the temperature sensor 2 is too high, the warning light 8 can flash continuously to achieve the purpose of prompting.

[0028] Furthermore, as a preferred embodiment, it also includes a micro camera 9, and a plurality of micro cameras 9 are arranged on the inner wall of the high-voltage switch cabinet, and the micro cameras 9 are facing the busbar joint and / or the moving and static contacts. The arranged cameras are used to monitor the status of the busbar joint and / or the moving and static contacts in real time, for example, whether the busbar joint and / or the moving and static contacts are rusted or loosened.

[0029] Further, as a preferred embodiment, it also includes a smoke sensor 10 and a flame sensor 11, both of which are installed on the inner wall of the high-voltage switch cabinet, and the warning light 8, the micro camera 9, the smoke sensor 10 and the flame sensor 11 are connected to the processor 1 respectively. In this embodiment, the smoke sensor 10 is used to detect whether there is smoke inside the high-voltage switch cabinet, and the flame sensor 11 is used to detect whether there is a fire inside the flame sensor 11. If there is smoke or fire inside the high-voltage switch cabinet, the warning light 8 will flash in time to prompt, and the processor 1 will control the main power control switch 7 to disconnect, thereby improving the safety of use. The processor 1 is a PLC processor 1.

[0030] Furthermore, as a preferred embodiment, it also includes a rotating sleeve 12, a limit plate 13, a hand-held rod 14, a threaded rod 15 and a flexible rod 16. A mounting hole is provided on the side wall of the high-voltage switch cabinet, and the rotating sleeve 12 is arranged in the mounting hole. Two limit plates 13 are provided at both ends of the rotating sleeve 12, and the two limit plates 13 are abutted against the inner walls of the two ends of the mounting hole. A hand-held rod 14 is provided on the limit plate 13 located on the outside of the high-voltage switch cabinet, and the threaded rod 15 passes through the rotating sleeve 12. The threaded rod 15 is threadedly connected to the rotating sleeve 12, and a circular hole is provided at one end of the threaded rod 15 located on the inner side of the high-voltage switch cabinet, and a flexible rod 16 is provided in the circular hole, and the temperature sensor 2 is installed at the end of the flexible rod 16. In this embodiment, when in use, one hand can hold the threaded rod 15 to prevent the threaded rod 15 from rotating with the rotating sleeve 12, and the other hand can rotate the rotating sleeve 12 by holding the rod 14 to make the rotating sleeve 12 rotate, and the rotation of the rotating sleeve 12 will be converted into a linear movement of the threaded rod 15, so that the threaded rod 15 moves toward the inside or outside of the high-voltage switch cabinet, which is convenient for adjusting the distance between the temperature sensor 2 and the busbar joint and / or the moving and static contacts. The flexible rod 16 can be deformed and also has a certain supporting capacity. The angle of the temperature sensor 2 can be adjusted by bending the flexible rod 16, so as to improve the accuracy of temperature detection near the busbar joint and / or the moving and static contacts.

[0031] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection system for a high-voltage switch cabinet, characterized in that: It includes a processor, several temperature sensors, a cooling mechanism and a display. The processor is installed on the outer wall of the high-voltage switch cabinet. Several temperature sensors are installed near the busbar joint and / or the moving and static contacts. A part of the cooling mechanism is installed on the outside of the high-voltage switch cabinet, and the other part is installed inside the high-voltage switch cabinet and points to the busbar joint and / or the moving and static contacts. The display is installed on the outer wall of the high-voltage switch cabinet. The temperature sensor, cooling mechanism and display are respectively connected to the processor.

2. The detection system for high-voltage switchgear according to claim 1, characterized in that: It also includes a cloud server and a wireless module, and the processor is connected to the cloud server via the wireless module.

3. The detection system for high-voltage switchgear according to claim 1, characterized in that: The cooling mechanism comprises a liquid nitrogen supply source and a nozzle, wherein the liquid nitrogen supply source is arranged outside the high-voltage switch cabinet, and the nozzle is arranged inside the high-voltage switch cabinet and points to the busbar joint and / or the moving and static contacts.

4. The detection system for high-voltage switchgear according to claim 3, characterized in that: It also includes an electric control valve and a connecting pipe, the liquid nitrogen supply source is connected to the nozzle through the connecting pipe, the electric control valve is arranged on the connecting pipe, and the connecting electric control valve is connected to the processor.

5. The detection system for high-voltage switchgear according to claim 1, characterized in that: It also includes a power master control switch, which is electrically connected to the high-voltage switch cabinet and connected to the processor.

6. The detection system for high-voltage switchgear according to claim 1, characterized in that: It also includes a warning light, which is arranged on the outer wall of the high-voltage switch cabinet.

7. The detection system for high-voltage switchgear according to claim 6, characterized in that: It also includes a micro camera, and a plurality of the micro cameras are arranged on the inner wall of the high-voltage switch cabinet, and the micro cameras are facing the busbar connector and / or the moving and static contacts.

8. The detection system for high-voltage switchgear according to claim 7, characterized in that: It also includes a smoke sensor and a flame sensor, which are both installed on the inner wall of the high-voltage switch cabinet, and the warning light, the micro camera, the smoke sensor and the flame sensor are connected to the processor respectively.

9. The detection system for high-voltage switchgear according to claim 7, characterized in that: It also includes a rotating sleeve, a limiting plate, a hand-held rod, a threaded rod and a flexible rod. A mounting hole is provided on the side wall of the high-voltage switch cabinet. The rotating sleeve is arranged in the mounting hole. Two limiting plates are provided at both ends of the rotating sleeve. The two limiting plates are abutted against the inner walls of the two ends of the mounting hole. The hand-held rod is provided on the limiting plate located on the outside of the high-voltage switch cabinet. The threaded rod passes through the rotating sleeve. The threaded rod is threadedly connected to the rotating sleeve. A circular hole is provided at one end of the threaded rod located on the inner side of the high-voltage switch cabinet. The flexible rod is provided in the circular hole. The temperature sensor is installed at the end of the flexible rod.

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