Armored movable alternating-current metal-enclosed switchgear
By designing pressure relief and heat dissipation channels in the armored removable AC metal-enclosed switchgear, the problem of traditional switchgear being unable to quickly release pressure and dissipate heat is solved, and safe and reliable equipment operation is achieved.
Patent Information
- Application Number
- CN202422483375.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-15
AI Technical Summary
When installing armored switchgear in traditional fixed metal-enclosed switchgear, the pressure relief channels are reduced and the pressure inside the cabinet cannot be quickly released, resulting in an increased risk of damage to the switchgear or personal injury. At the same time, the heat dissipation effect is poor, which can easily cause equipment damage and arc breakdown accidents.
An armored removable AC metal-enclosed switchgear was designed, which includes pressure relief channels in the trolley room, busbar room and cable room, and is equipped with heaters and pressure relief covers. Rapid pressure relief and heat dissipation are achieved through vertical pressure relief channels and heat dissipation channels to ensure safety.
Effectively and quickly release the pressure and heat inside the cabinet, reduce the risk of switch cabinet damage and accidents, and improve equipment safety and reliability.
Smart Images
Figure CN223451415U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to switchgear technology field especially relates to a kind of armored movable AC metal-enclosed switchgear. BACKGROUND
[0002] Today, with the development of electrical technology, high requirements are put forward for switchgear equipment. New 6~10kV armored switchgear is difficult to match some old fixed metal-enclosed switchgear (XGN2-12 switchgear) in size and appearance due to space limitations. When the power system is transformed, it cannot meet the demand. Some switchgear products reduce the pressure relief channel as a trade-off. When an arc fault occurs in the switchgear, it cannot quickly release the pressure in the cabinet, which can cause damage to the switchgear and even accidents such as personal injury.
[0003] Even if the switchgear has poor heat dissipation effect during normal operation, it can also cause the temperature in the cabinet to rise too high, causing equipment damage. Some old switchgear products lack related auxiliary function equipment such as condensation removal devices, which cannot quickly dry the air in the cabinet. In a humid environment or season, the humidity of the air in the cabinet rises, causing the insulation distance to decrease, resulting in arc breakdown and accidents. SUMMARY
[0004] The utility model aims at solving the problem of reduced pressure relief channel when installing armored switchgear in traditional fixed metal-enclosed switchgear and proposes an armored movable AC metal-enclosed switchgear.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] An armored movable AC metal-enclosed switchgear includes a cabinet. An instrument room is provided on the top front side of the inside of the cabinet. A handcart room is provided below the instrument room. A busbar room is provided behind the instrument room. A cable room is provided below the busbar room.
[0007] A handcart room pressure relief channel is provided between the instrument room and the busbar room, which communicates with the handcart room. A busbar room pressure relief channel is provided on the inside of the busbar room. A cable room pressure relief channel is provided on the rear side of the busbar room, which communicates with the cable room.
[0008] The handcart room pressure relief channel is opened in the vertical direction. The handcart room is provided with a handcart, a first heater inside.
[0009] The busbar room pressure relief channel and the cable room pressure relief channel are opened in the vertical direction. The cable room is provided with a current transformer, a grounding switch, a cable, a second heater, and a surge arrester inside.
[0010] The inside of the busbar chamber is provided with an insulator and a contact box.
[0011] The outlet end of the handcart chamber pressure relief channel, the busbar chamber pressure relief channel and the cable chamber pressure relief channel is provided with a pressure relief channel top cover.
[0012] The pressure relief channel top cover comprises a pressure relief cover plate and nylon screws, and the pressure relief cover plate is mounted on the cabinet body through the nylon screws.
[0013] A heat dissipation channel is arranged between the pressure relief cover plate and the cabinet body, the heat dissipation channel is fixed on the cabinet body, the pressure relief cover plate and the heat dissipation channel are connected through the nylon screws, and heat dissipation holes are formed in the side surface of the heat dissipation channel.
[0014] The sectional area of the pressure relief cover plate is greater than that of the heat dissipation channel.
[0015] Compared with the prior art, the armored movable AC metal-enclosed switchgear has the following beneficial effects:
[0016] The armored movable AC metal-enclosed switchgear has the following beneficial effects:
[0017] Other advantages, objects and features of the present application will be clarified in the subsequent description; and to some extent, it will be obvious to those skilled in the art based on the study of the following; or it can be taught from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a front view schematic diagram of the cabinet body structure of the present application;
[0019] Figure 2 It is a left view schematic diagram of the internal structure of the cabinet body of the present application;
[0020] Figure 3 It is a schematic diagram of the pressure relief channel top cover structure of the present application;
[0021] Figure 4 It is a schematic diagram of the first heater structure of the present application.
[0022] In the drawings:
[0023] 1, instrument room; 2, trolley room; 21, trolley; 22, first heater; 3, cable room; 31, current transformer; 32, grounding switch; 33, cable; 34, second heater; 35, arrester; 4, busbar room; 41, insulator; 42, contact box; 5, pressure relief channel top cover; 51, pressure relief cover plate; 52, nylon screw; 53, heat dissipation channel; 54, heat dissipation hole; 6, trolley room pressure relief channel; 7, busbar room pressure relief channel; 8, cable room pressure relief channel; 9, cabinet body. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0025] Referring to Figures 1-3 The utility model discloses an armored movable AC metal-enclosed switchgear, which comprises a cabinet body 9, an instrument room 1 is arranged on the inner top front side of the cabinet body 9, a trolley room 2 is arranged below the instrument room 1, a busbar room 4 is arranged at the rear of the instrument room 1, and a cable room 3 is arranged below the busbar room 4.
[0026] The trolley room 2 is communicated with the trolley room pressure relief channel 6, the inner side of the busbar room 4 is provided with the busbar room pressure relief channel 7, and the rear side of the busbar room 4 is provided with the cable room pressure relief channel 8 communicated with the cable room 3.
[0027] When arc fault occurs in the trolley room 2, the cable room 3 or the busbar room 4, the gas pressure is discharged along the corresponding trolley room pressure relief channel 6, the cable room pressure relief channel 8 or the busbar room pressure relief channel 7, so that the pressure can be smoothly discharged.
[0028] Compared with the traditional fixed metal-enclosed switch cabinet, the layout of the instrument room 1, the trolley room 2, the cable room 3 and the busbar room 4 is more reasonable in the scheme of the utility model, the trolley room pressure relief channel 6, the busbar room pressure relief channel 7 and the cable room pressure relief channel 8 are communicated with the outer side of the cabinet body 9, and the pressure and high-pressure gas can be smoothly discharged.
[0029] The trolley room pressure relief channel 6 is arranged in the vertical direction, the hot gas and the pressure can be naturally discharged upward, the trolley 21 and the first heater 22 are installed in the trolley room 2, after the power supply is turned on, the first heater 22 heats the air in the trolley room 2, evaporates the water vapor, the water vapor naturally rises and is discharged through the trolley room pressure relief channel 6, the trolley room 2 is dried, and the air humidity is reduced.
[0030] The bus chamber pressure relief channel 7 and the cable chamber pressure relief channel 8 are vertically arranged, and the cable chamber 3 is internally provided with a current transformer 31, a grounding switch 32, a cable 33, a second heater 34 and an arrester 35; the second heater 34 heats the air in the cable chamber 3 to evaporate water vapor, which is discharged through the cable chamber pressure relief channel 8.
[0031] The first heater 22 and the second heater 34 are both silica gel heaters.
[0032] The bus chamber 4 is internally provided with an insulator 41 and a contact box 42.
[0033] The outlet ends of the trolley chamber pressure relief channel 6, the bus chamber pressure relief channel 7 and the cable chamber pressure relief channel 8 are provided with a pressure relief channel top cover 5, which prevents birds, animals and large foreign matters from entering the inside of the cabinet 9 through the trolley chamber pressure relief channel 6, the bus chamber pressure relief channel 7 and the cable chamber pressure relief channel 8.
[0034] The pressure relief channel top cover 5 comprises a pressure relief cover plate 51 and nylon screws 52; when an arc fault occurs in the trolley chamber 2, the cable chamber 3 or the bus chamber 4, and the air pressure exceeds a certain pressure instantaneously, the pressure relief cover plate 51 can be hit to break the nylon screws 52, so as to open the pressure relief cover plate 51, instantaneously release the pressure and ensure safety.
[0035] The pressure relief cover plate 51 and the cabinet 9 are provided with a heat dissipation channel 53; the heat dissipation channel 53 is fixed to the cabinet 9, and the pressure relief cover plate 51 and the heat dissipation channel 53 are connected through the nylon screws 52; the heat dissipation channel 53 is a hollow cylindrical structure, and the side surface of the heat dissipation channel 53 is provided with heat dissipation holes 54; the top of the heat dissipation channel 53 is connected to the pressure relief cover plate 51, and the bottom of the heat dissipation channel 53 is respectively connected to the trolley chamber pressure relief channel 6, the bus chamber pressure relief channel 7 and the cable chamber pressure relief channel 8; when the switch cabinet is used, the heat generated by the bus bars, the movable and static contact combinations of the circuit breakers, the current transformers and the like in the cabinet accumulates in the switch cabinet, so that the air in the cabinet expands and the hot air rises and is discharged outside the cabinet through the heat dissipation holes 54, thereby reducing the pressure in the cabinet and reducing the temperature in the cabinet under the condition of natural ventilation; when a short-term arc occurs in the cabinet, the air instantaneously rises and is discharged outside the cabinet 9 through the heat dissipation holes 54.
[0036] The cross-sectional area of the pressure relief cover plate 51 is greater than that of the heat dissipation channel 53, so as to shield the heat dissipation channel 53 and the heat dissipation holes 54, thereby preventing rainwater from entering the cabinet 9 through the heat dissipation holes 54.
[0037] Working principle: when the switch cabinet is used, the heat generated by the busbar, the movable and static contact matching part of the circuit breaker, the current transformer and the like in the cabinet accumulates in the switch cabinet, causing the air to expand and the hot air to rise, and the hot air is discharged out of the cabinet body through the heat dissipation hole 54, reducing the pressure in the cabinet, and reducing the temperature in the cabinet under natural ventilation, and when a short-term electric arc occurs in the cabinet body, the air rises instantaneously and can also be discharged out of the cabinet body 9 through the heat dissipation hole 54.
[0038] When an electric arc fault occurs in the handcart room 2 or the cable room 3 or the busbar room 4, the air pressure in the cabinet rises with the occurrence of the electric arc, and when the pressure reaches a certain value, the nylon screw 52 fixed to the pressure relief cover plate 51 is broken, the pressure relief cover plate 51 is opened, and the pressure and exhaust gas are released through the corresponding pressure relief channel, to ensure the safety of the operator and the switch cabinet.
[0039] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent substitutions or changes to the technical scheme and the inventive concept of the present application within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.
[0040] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.
[0041] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, substitutions and modifications to the above embodiments within the scope of the present application.
Claims
1. An armored removable AC metal-enclosed switchgear, comprising a cabinet (9), characterized in that: An instrument room (1) is provided at the front of the top inner side of the cabinet (9), a trolley room (2) is provided below the instrument room (1), a busbar room (4) is provided behind the instrument room (1), and a cable room (3) is provided below the busbar room (4); A trolley chamber pressure relief channel (6) communicating with the trolley chamber (2) is provided between the instrument chamber (1) and the busbar chamber (4), a busbar chamber pressure relief channel (7) is provided on the inner side of the busbar chamber (4), and a cable chamber pressure relief channel (8) communicating with the cable chamber (3) is provided on the rear side of the busbar chamber (4).
2. The armored removable AC metal-enclosed switchgear according to claim 1, characterized in that: The trolley chamber pressure relief channel (6) is opened in a vertical direction, and a trolley (21) and a first heater (22) are provided inside the trolley chamber (2).
3. The armored removable AC metal-enclosed switchgear according to claim 1, characterized in that: The busbar chamber pressure relief channel (7) and the cable chamber pressure relief channel (8) are opened in a vertical direction, and a current transformer (31), a grounding switch (32), a cable (33), a second heater (34), and a lightning arrester (35) are arranged inside the cable chamber (3).
4. The armored removable AC metal-enclosed switchgear according to claim 1, characterized in that: An insulator (41) and a contact box (42) are provided inside the busbar chamber (4).
5. The armored removable AC metal-enclosed switchgear according to claim 1, characterized in that: The outlet ends of the trolley chamber pressure relief channel (6), the busbar chamber pressure relief channel (7), and the cable chamber pressure relief channel (8) are provided with pressure relief channel top covers (5).
6. The armored removable AC metal-enclosed switchgear according to claim 5, characterized in that: The pressure relief channel top cover (5) comprises a pressure relief cover plate (51) and nylon screws (52), and the pressure relief cover plate (51) is mounted on the cabinet body (9) via the nylon screws (52).
7. The armored removable AC metal-enclosed switchgear according to claim 6, characterized in that: A heat dissipation channel (53) is provided between the pressure relief cover plate (51) and the cabinet body (9); the heat dissipation channel (53) is fixed to the cabinet body (9); the pressure relief cover plate (51) and the heat dissipation channel (53) are connected via nylon screws (52); and heat dissipation holes (54) are provided on the side of the heat dissipation channel (53).
8. The armored removable AC metal-enclosed switchgear according to claim 7, characterized in that: The cross-sectional area of the pressure relief cover plate (51) is larger than the cross-sectional area of the heat dissipation channel (53).