High-voltage ring main unit with fixed ground knife in lower isolation belt

Abstract

The invention relates to the technical field of high-voltage ring main units, and one embodiment of the invention provides a lower isolation belt ground knife fixed type high-voltage ring main unit which comprises a hollow plate, the hollow plate is fixedly connected with the inner side face of a cabinet body, a flat pressing hole is formed in one side of the hollow plate, and a pipeline assembly is embedded in the cabinet body. One side of the hollow plate is fixedly connected with a bearing assembly, the bearing assembly is fixedly connected with the inner side face of the cabinet body, a closed space is defined by the bearing assembly, the cabinet body and the cabinet door, electrical elements and accessory equipment of the high-voltage ring main unit are installed in the defined closed space, and the filtering assembly is fixedly connected to the side, close to the cabinet door, of the cabinet body. The heat dissipation speed is improved, the interior of the cabinet body is cooled, and the cleaning and dehumidification effects are achieved on electrical elements and accessory equipment of the high-voltage ring main unit installed in the cabinet body. According to the technical scheme, the technical problem that the humidity in the cabinet is too high when the cabinet is used in a humid area in the prior art is solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of high-voltage ring main units, and specifically, to a fixed high-voltage ring main unit with a lower isolation grounding knife. Background Art

[0002] The fixed high-voltage ring main unit with a lower isolation grounding knife is a key electrical device widely used in the power system. It is mainly used in power systems with an alternating current of 50 Hz and a rated working voltage of 12 kV and below. It adopts a fixed installation method, has a stable structure, and can effectively reduce the risk of failures caused by factors such as vibration. This ring main unit is equipped with a lower isolation grounding knife device, which has the functions of isolating the power supply and providing grounding protection. During equipment maintenance, the isolation knife can provide an obvious disconnection point to isolate the maintenance part from the live part, ensuring the safety of maintenance personnel. The grounding knife can ground the circuit during maintenance, release the remaining charges, and prevent static electricity and induced electricity from causing harm to personnel and equipment. Its internal structure includes a switch room, which houses a load switch, a grounding switch, etc., for controlling and protecting the circuit. The high-voltage ring main unit is suitable for ring network and terminal power supply in factories, workshops, residential communities, high-rise buildings, schools, parks, etc. It can reliably distribute electric energy, control the on-off of the circuit, and quickly cut off the circuit in case of a fault, ensuring the safe and stable operation of the power system; In the prior art When used in humid areas, the humidity inside the cabinet is likely to be too high, which will increase the risk of short circuits. The electronic components and the cabinet itself are also easily corroded. At the same time, it will also affect the heat dissipation of electronic devices and the performance of electronic devices. Therefore, we propose a fixed high-voltage ring main unit with a lower isolation grounding knife. Summary of the Invention

[0003] To overcome the above defects, embodiments of the present disclosure provide a fixed high-voltage ring main unit with a lower isolation grounding knife, which solves the technical problems in the related art / prior art that when used in humid areas, the humidity inside the cabinet is likely to be too high, which will increase the risk of short circuits, the electronic components and the cabinet itself are also easily corroded, and at the same time, it will also affect the heat dissipation of electronic devices and the performance of electronic devices.

[0004] According to one aspect, at least one embodiment of the present disclosure provides a fixed high-voltage ring main unit with a lower isolation grounding knife, including: a cabinet body, the inner side surface of the cabinet body is rotatably connected with a cabinet door through a hinge, and a handle is fixedly connected to the side of the cabinet door away from the cabinet body.

[0005] For example, in a fixed high-voltage ring main unit with a lower isolation grounding knife provided by at least one embodiment of the present disclosure, it further includes: a cooling component, the cooling component is provided in two parts, and the two parts of the cooling component are respectively fixedly connected to the inner and outer side surfaces of the cabinet body; Wherein, the cooling component includes: Hollow board, the hollow board is fixedly connected to the inner side surface of the cabinet body, one side of the hollow board close to the top of the cabinet body is slidably connected to the surface of the cabinet door, a flat pressure hole is opened on one side of the hollow board close to the cabinet door, and a plurality of the flat pressure holes are evenly distributed on the surface of the hollow board; Pipeline assembly, the pipeline assembly is inlaid in the cabinet body, one side of the pipeline assembly close to the inner side surface of the cabinet body extends into the cabinet body, and the surface of the pipeline assembly is fixedly connected to the inner side surface of the cabinet body; A bearing assembly is fixedly connected to one side of the hollow board close to the cabinet door, the bearing assembly is fixedly connected to the inner side surface of the cabinet body, the bearing assembly, the cabinet body and the cabinet door enclose a closed space, and high-voltage ring main unit electrical components and auxiliary equipment are installed in the enclosed closed space; Filter assembly, the filter assembly is fixedly connected to one side of the cabinet body close to the cabinet door; One side of the pipeline assembly close to the hinge of the cabinet body is communicated with the inner cavity of the hollow board, and one side of the pipeline assembly away from the hollow board is communicated with the filter assembly; High-voltage ring main unit electrical components and auxiliary equipment are installed in the closed space enclosed by the bearing assembly, the cabinet body and the cabinet door, which are divided into an instrument room, a circuit breaker room, a lower isolation belt, a grounding knife, and a cable room from top to bottom. When the cooling component is started, external air sequentially passes through the filter assembly and the pipeline assembly. The pipeline assembly extends into the cabinet body. When the air flow passes through, the flow rate in the pipeline assembly increases and the pressure decreases. The air inside the cabinet body is pressed into the pipeline assembly, drawing the air inside the cabinet body into the pipeline assembly. At the same time, dust and other impurities inside the cabinet body enter the pipeline assembly along with the air flow. Then the air enters the hollow board and finally returns to the cabinet body through the flat pressure holes, realizing the restoration of pressure, avoiding the generation of negative pressure inside the cabinet body, avoiding short circuits caused by negative pressure, and the circulating air can improve the heat dissipation speed, realizing the cooling of the inside of the cabinet body. Moreover, the air being drawn into the pipeline assembly can clean the high-voltage ring main unit electrical components and auxiliary equipment installed inside the cabinet body.

[0006] Further, the pipeline assembly includes a cooling pipe, the cooling pipe is inlaid in the cabinet body, and the outer side surface of the cooling pipe is fixedly connected to the inner side surface of the cabinet body. One end of the cooling pipe close to the top of the cabinet body extends outside the cabinet body, and the end of the cooling pipe extending outside the cabinet body is located inside the filter assembly. The air flow passes through the filter assembly and then circulates inside the cooling pipe, improving the heat dissipation speed and achieving a better cooling effect. The setting of the filter assembly can prevent dust and other impurities from entering the inside of the cooling pipe and avoid blockage of the cooling pipe caused by long-term use.

[0007] Furthermore, the cooling pipe is arranged in a serpentine shape and is wound around three sides of the cabinet body. The serpentine cooling pipe can obtain a longer gas flow path and better cooling effect. Moreover, the cooling pipe wound around three sides of the cabinet body can achieve more uniform cooling of the cabinet body.

[0008] Furthermore, ejector pipes are fixedly connected to two opposite sides of the cabinet body. The ejector pipes extend into the cabinet body, and one end of the ejector pipe located inside the cabinet body is fixedly connected to the outer side surface of the cooling pipe. The outer side surface of the ejector pipe is fixedly connected to the inner side surface of the cabinet body. The airflow flows inside the cooling pipe, so that the air inside the cabinet body is ejected into the ejector pipe and finally enters the cooling pipe to participate in the cycle, obtaining a better cooling effect. Moreover, the ejected airflow can carry impurities such as dust inside the cabinet body into the cooling pipe to clean the inside of the cabinet body.

[0009] Furthermore, several ejector pipes are provided. The ejector pipes are evenly distributed on two opposite inner side surfaces of the cabinet body and are evenly distributed along the serpentine path of the cooling pipe. The arrangement of several ejector pipes can achieve more uniform ejection and obtain better cleaning and cooling effects.

[0010] Furthermore, one end of the cooling pipe located inside the cabinet body is provided with a connecting pipe. The connecting pipe penetrates the cabinet body and extends into the hollow plate. The outer side surface of the connecting pipe is fixedly connected to the inner side surface of the cabinet body and is also fixedly connected to the inner side surface of the hollow plate. The air enters the connecting pipe through the cooling pipe, and finally the air returns to the inside of the cabinet body through the equalizing holes to achieve equalizing pressure, avoiding the formation of negative pressure and thus avoiding negative pressure short circuit.

[0011] Furthermore, the bearing assembly includes a bearing platform. The bearing platform is fixedly connected to one side of the hollow plate close to the cabinet door. The surface of the bearing platform is fixedly connected to the inner side surface of the cabinet body. A plurality of communication holes are formed on the surface of the bearing platform and are evenly distributed. The equalizing holes are circular, and the communication holes are strip-shaped, and the distribution modes of several equalizing holes and communication holes are different. The air passes through the equalizing holes and then through the communication holes. The hole shapes and distribution modes of the equalizing holes and communication holes are different, which can prevent larger impurities and flocculent impurities from entering the space surrounded by the bearing platform, the cabinet body and the cabinet door, thereby preventing larger impurities and flocculent impurities from affecting the normal operation of the electrical components and auxiliary equipment of the high-voltage ring main unit.

[0012] Furthermore, the filtering component includes a frame fixedly connected to one side of the cabinet body close to the cabinet door. A filter box is also fixedly connected to one side of the cabinet body close to the cabinet door, and the frame and the filter box form a U-shaped structure. A filtering hole is formed in one side of the filter box away from the top of the cabinet body, and an air inlet hole is formed in one side of the frame away from the cabinet body. The filtering hole is communicated with the air inlet hole. One end of the cooling pipe located outside the cabinet body extends into the filter box, and the gas sequentially passes through the air inlet hole, the filtering hole, and the filter box and finally enters the cooling pipe.

[0013] Furthermore, a pump body is arranged at the bottom of the inner side surface of the filter box. Both ends of the pump body are fixedly connected with pipe bodies. A fixing frame is fixedly connected to the surface of the pump body, and the surface of the fixing frame is fixedly connected to the inner side surface of the filter box. The inner side surface of the fixing frame is fixedly connected to the outer side surfaces of the two pipe bodies respectively. When the pump body is started, the pump body drives the gas to flow, and the gas sequentially passes through the bottom pipe body, the pump body, and the top pipe body, and finally the gas enters the filter box.

[0014] Furthermore, several filter plates are evenly distributed directly above the pipe body away from the filtering hole. The filter plates are arranged in a shape similar to an X, and the filter holes of the filter plates are vertically formed. The surface of the filter plate is fixedly connected to the inner side surface of the filter box. A moisture absorption plate is arranged at the interval between two adjacent filter plates. Both sides of the moisture absorption plate are fixedly connected to the included angles of the two filter plates respectively. The moisture absorption plate is arranged in a waveform. The air sequentially passes through several filter plates, and the gas flows from top to bottom. Under the action of gravity, dust can fall better. The filter holes of the filter plates are vertically formed, and the air can be better shot at the moisture absorption plate when passing through, and the moisture absorption plate can better adsorb the moisture in the air, preventing the humid air from entering the cabinet body and affecting the normal operation of the high-voltage ring main unit. The waveform moisture absorption plate can obtain a larger adsorption area and a better moisture absorption effect, and the humidified moisture absorption plate can adhere to smaller impurities, further ensuring the cleanliness of the air entering the cabinet body and preventing the impurities from affecting the normal operation of the high-voltage ring main unit.

[0015] The beneficial effects of the embodiments of the present disclosure are as follows: 1. In the present disclosure, by arranging the cooling component, the air inside the cabinet body is introduced into the pipeline component. After circulation, the air finally returns to the cabinet body through the pressure equalizing hole, realizing the restoration of pressure, preventing negative pressure from being generated inside the cabinet body, and preventing short circuits caused by negative pressure. The circulating air can improve the heat dissipation speed and realize the cooling of the inside of the cabinet body. Dust and other impurities inside the cabinet body also enter the pipeline component along with the induced air flow, playing a cleaning effect on the electrical components and auxiliary equipment of the high-voltage ring main unit installed inside the cabinet body.

[0016] 2. In the present disclosure, by providing a pipeline assembly, air circulates inside the cooling pipe, enhancing the heat dissipation rate and achieving a better cooling effect. The provision of the filtering assembly can prevent dust, moist moisture, etc. from entering the inside of the cooling pipe, avoiding blockage of the cooling pipe caused by long-term use and short circuit due to excessive humidity inside the cabinet. The serpentine cooling pipe can obtain a longer gas flow path and better cooling effect, and the cooling pipes surrounding three sides of the cabinet can achieve more uniform cooling of the cabinet.

[0017] 3. In the present disclosure, by providing a bearing assembly, air passes through the equalizing holes and then through the communication holes. The hole shapes and distribution patterns of the equalizing holes and communication holes are different, which can prevent larger impurities and flocculent impurities from entering the space enclosed by the bearing platform, the cabinet, and the cabinet door, thus avoiding the influence of larger impurities and flocculent impurities on the normal operation of the electrical components and auxiliary equipment of the high-voltage ring main unit.

[0018] 4. In the present disclosure, by providing a filtering assembly, the filter holes of the filter plate are perpendicular to the filter plate, and air impinges on the moisture-absorbing plate at a smaller incident angle. The air ejected from all the filter holes can contact the moisture-absorbing plate, which can better adsorb the moisture in the air about to enter the cabinet and avoid affecting the normal operation of the high-voltage ring main unit. The corrugated moisture-absorbing plate has a larger adsorption area, and after being moistened, the moisture-absorbing plate can adhere to impurities, further ensuring the cleanliness of the air entering the inside of the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the exemplary embodiments of the present disclosure and these drawings.

[0020] Figure 1 It is a schematic structural diagram of a fixed-type high-voltage ring main unit with an isolator knife at the lower isolation belt in an embodiment of the present disclosure; Figure 2 For Figure 1 it is a schematic structural diagram of the interior of the cabinet in the embodiment of Figure 3 For Figure 1 it is a schematic structural diagram of the cross-section of the cabinet in the embodiment of Figure 4 For Figure 1 it is a schematic structural diagram of the cooling pipe in the embodiment of Figure 5 For Figure 4 it is an enlarged view of part A of Figure 6 For Figure 1Schematic structural diagram of the bearing component in the embodiment of Figure 7 is Figure 1 Schematic structural diagram of the filtering component in the embodiment of Figure 8 is Figure 1 Schematic structural diagram of the cross-section of the filter box in the embodiment of Figure 9 is Figure 1 Schematic structural diagram of the interior of the filter box in the embodiment of In the figure: 1, cabinet body; 2, cabinet door; 3, cooling component; 31, hollow plate; 32, flat pressing hole; 33, pipeline component; 331, cooling pipe; 332, ejector pipe; 333, connecting pipe; 34, bearing component; 341, bearing platform; 342, communication hole; 35, filtering component; 351, frame; 352, filter box; 353, air inlet hole; 354, filtering hole; 355, pump body; 356, pipe body; 357, fixing frame; 358, filter plate; 359, moisture absorption plate. Specific embodiments

[0021] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than limiting the present disclosure.

[0022] For the sake of simplicity of the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent their actual structures as products. In addition, for the sake of simplicity and easy understanding of the drawings, in some figures, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0023] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

[0024] In the present disclosure, unless otherwise clearly specified and defined, the first feature being “on” or “under” the second feature may include direct contact between the first and second features, or may include contact between the first and second features not directly but through additional features therebetween. Moreover, the first feature being “above”, “over” and “on top of” the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being “under”, “beneath” and “underneath” the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0025] In the description of this embodiment, the orientation or positional relationships such as “up”, “down”, “left” and “right” are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present disclosure.

[0026] In addition, in the description of this application, the terms “first”, “second” etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0027] As Figures 1 to 9 shown, it shows a fixed-type high-voltage ring main unit with an under-isolation belt grounding knife in an embodiment of the present disclosure, including: A cabinet body 1, the inner side surface of the cabinet body 1 is rotatably connected to a cabinet door 2 through a hinge, and a handle is fixedly connected to the side of the cabinet door 2 away from the cabinet body 1; A cooling component 3, the cooling component 3 is provided with two parts, and the two parts of the cooling component 3 are respectively fixedly connected to the inner and outer side surfaces of the cabinet body 1; Among them, the cooling component 3 includes: A hollow plate 31, the hollow plate 31 is fixedly connected to the inner side surface of the cabinet body 1, the side of the hollow plate 31 close to the top of the cabinet body 1 is slidably connected to the surface of the cabinet door 2, a flat pressure hole 32 is opened on the side of the hollow plate 31 close to the cabinet door 2, and a plurality of flat pressure holes 32 are evenly distributed on the surface of the hollow plate 31; A pipeline component 33, the pipeline component 33 is embedded in the cabinet body 1, the side of the pipeline component 33 close to the inner side surface of the cabinet body 1 extends into the cabinet body 1, and the surface of the pipeline component 33 is fixedly connected to the inner side surface of the cabinet body 1; A bearing component 34 is fixedly connected to the side of the hollow plate 31 close to the cabinet door 2, the bearing component 34 is fixedly connected to the inner side surface of the cabinet body 1, the bearing component 34, the cabinet body 1 and the cabinet door 2 enclose a closed space, and high-voltage ring main unit electrical components and auxiliary equipment are installed in the enclosed closed space; A filtering component 35, the filtering component 35 is fixedly connected to the side of the cabinet body 1 close to the cabinet door 2; One side of the pipeline assembly 33 close to the hinge of the cabinet body 1 is communicated with the inner cavity of the hollow plate 31, and the side of the pipeline assembly 33 away from the hollow plate 31 is communicated with the filtering assembly 35; High-voltage ring main unit electrical components and auxiliary equipment are installed in the enclosed space surrounded by the bearing assembly 34, the cabinet body 1 and the cabinet door 2. From top to bottom, it is divided into an instrument room, a circuit breaker room, a lower isolation belt, an earthing switch, and a cable room. When the cooling assembly 3 is started, external air sequentially passes through the filtering assembly 35 and the pipeline assembly 33. The pipeline assembly 33 extends into the cabinet body 1. When the air flow passes through, the flow velocity in the pipeline assembly 33 increases and the pressure decreases. The air inside the cabinet body 1 is pressed into the pipeline assembly 33, and the air inside the cabinet body 1 is drawn into the pipeline assembly 33. At the same time, dust and other impurities inside the cabinet body 1 enter the pipeline assembly 33 along with the air flow. Then the air enters the hollow plate 31 and finally returns to the cabinet body 1 through the pressure equalizing holes 32, realizing the restoration of pressure, avoiding the generation of negative pressure inside the cabinet body 1, and avoiding short circuits caused by negative pressure. The circulating air can improve the heat dissipation speed and achieve the cooling of the inside of the cabinet body 1. Moreover, the air being drawn into the pipeline assembly 33 can clean the high-voltage ring main unit electrical components and auxiliary equipment installed inside the cabinet body 1.

[0028] The pipeline assembly 33 includes a cooling pipe 331. The cooling pipe 331 is embedded in the cabinet body 1, and the outer side surface of the cooling pipe 331 is fixedly connected with the inner side surface of the cabinet body 1. One end of the cooling pipe 331 close to the top of the cabinet body 1 extends outside the cabinet body 1, and the end of the cooling pipe 331 extending outside the cabinet body 1 is located inside the filtering assembly 35. The air flow passes through the filtering assembly 35 and then circulates inside the cooling pipe 331, improving the heat dissipation speed and achieving a better cooling effect. The setting of the filtering assembly 35 can prevent dust and other impurities from entering the cooling pipe 331 and avoid blockage of the cooling pipe 331 caused by long-term use.

[0029] The cooling pipe 331 is arranged in a snake shape and is wound around three sides of the cabinet body 1. The snake-shaped cooling pipe 331 can obtain a longer gas flow path and a better cooling effect. Moreover, the cooling pipe 331 wound around three sides of the cabinet body 1 can achieve more uniform cooling of the cabinet body 1.

[0030] Ejector pipes 332 are fixedly connected to two opposite side surfaces of the cabinet body 1. The ejector pipes 332 extend into the cabinet body 1, and one end of the ejector pipes 332 located inside the cabinet body 1 is fixedly connected with the outer side surface of the cooling pipe 331. The outer side surface of the ejector pipes 332 is fixedly connected with the inner side surface of the cabinet body 1. The air flow flows inside the cooling pipe 331, so that the air inside the cabinet body 1 is ejected into the ejector pipes 332 and finally enters the cooling pipe 331 to participate in the cycle, obtaining a better cooling effect. Moreover, the ejecting air flow can carry dust and other impurities inside the cabinet body 1 into the cooling pipe 331 to clean the inside of the cabinet body 1.

[0031] There are several ejector tubes 332, which are evenly distributed on two opposite inner sides of the cabinet body 1, and several ejector tubes 332 are evenly distributed along the serpentine path of the cooling tube 331. The setting of several ejector tubes 332 can achieve more uniform ejection and obtain better cleaning and cooling effects.

[0032] One end of the cooling tube 331 located inside the cabinet body 1 is provided with a connecting tube 333. The connecting tube 333 penetrates through the cabinet body 1 and extends into the hollow plate 31. The outer side of the connecting tube 333 is fixedly connected to the inner side of the cabinet body 1, and the outer side of the connecting tube 333 is fixedly connected to the inner side of the hollow plate 31. Air enters the connecting tube 333 through the cooling tube 331, and finally the air returns to the inside of the cabinet body 1 through the pressure equalizing holes 32 to achieve pressure equalization, avoiding the formation of negative pressure, and thus avoiding negative pressure short circuit.

[0033] The bearing assembly 34 includes a bearing platform 341. The bearing platform 341 is fixedly connected to one side of the hollow plate 31 close to the cabinet door 2. The surface of the bearing platform 341 is fixedly connected to the inner side of the cabinet body 1. The surface of the bearing platform 341 is provided with a plurality of communicating holes 342 which are evenly distributed. The pressure equalizing holes 32 are circular, the communicating holes 342 are strip-shaped, and the distribution modes of the plurality of pressure equalizing holes 32 and the communicating holes 342 are different. Air passes through the pressure equalizing holes 32 and then through the communicating holes 342. The hole shapes and distribution modes of the pressure equalizing holes 32 and the communicating holes 342 are different, which can prevent larger impurities and flocculent impurities from entering the space surrounded by the bearing platform 341, the cabinet body 1, and the cabinet door 2, thereby preventing larger impurities and flocculent impurities from affecting the normal operation of the electrical components and auxiliary equipment of the high-voltage ring main unit.

[0034] The filtering assembly 35 includes a frame 351. The frame 351 is fixedly connected to one side of the cabinet body 1 close to the cabinet door 2. A filter box 352 is also fixedly connected to one side of the cabinet body 1 close to the cabinet door 2, and the frame 351 and the filter box 352 form a U-shaped structure. A filter hole 354 is provided on one side of the filter box 352 away from the top of the cabinet body 1. An air inlet hole 353 is provided on one side of the frame 351 away from the cabinet body 1, and the filter hole 354 is communicated with the air inlet hole 353. One end of the cooling tube 331 located outside the cabinet body 1 extends into the filter box 352. The gas passes through the air inlet hole 353, the filter hole 354, and the filter box 352 in sequence, and finally enters the inside of the cooling tube 331.

[0035] At the bottom of the inner side of the filter box 352, there is a pump body 355. Both ends of the pump body 355 are fixedly connected with pipe bodies 356. The surface of the pump body 355 is fixedly connected with a fixing frame 357. The surface of the fixing frame 357 is fixedly connected with the inner side of the filter box 352, and the inner side of the fixing frame 357 is fixedly connected with the outer sides of the two pipe bodies 356 respectively. When the pump body 355 is started, the pump body 355 drives the gas to flow. The gas sequentially passes through the bottom pipe body 356, the pump body 355, and the top pipe body 356, and finally the gas enters the interior of the filter box 352.

[0036] Above the pipe body 356 far away from the filter hole 354, a plurality of filter plates 358 are evenly distributed. The filter plates 358 are arranged in a shape similar to X, and the filter holes of the filter plates 358 are vertically opened. The surface of the filter plates 358 is fixedly connected with the inner side of the filter box 352. Moisture absorption plates 359 are arranged at the intervals between adjacent two filter plates 358. Both sides of the moisture absorption plate 359 are fixedly connected with the included angles of the two filter plates 358 respectively. The moisture absorption plate 359 is arranged in a waveform. The air sequentially passes through the plurality of filter plates 358, and the gas flows from top to bottom. Under the action of gravity, the dust can fall better. The filter holes of the filter plates 358 are vertically opened, so that the air can shoot better at the moisture absorption plate 359 when passing through. The moisture absorption plate 359 can better adsorb the moisture in the air, preventing the humid air from entering the interior of the cabinet body 1 and avoiding affecting the normal operation of the high-voltage ring main unit. The waveform moisture absorption plate 359 can obtain a larger adsorption area and a better moisture absorption effect. And the humidified moisture absorption plate 359 can adhere to smaller impurities, further ensuring the cleanliness of the air entering the interior of the cabinet body 1 and avoiding impurities from affecting the normal operation of the high-voltage ring main unit. When the present invention is in use, the pump body 355 is started. The pump body 355 drives the gas to flow. The gas sequentially passes through the air inlet hole 353, the filter hole 354, the filter box 352, the bottom pipe body 356, the pump body 355, and the top pipe body 356. Finally, the gas enters the interior of the filter box 352. The air sequentially passes through the plurality of filter plates 358, and the gas flows from top to bottom. Under the action of gravity, the dust falls better. When the air passes through, it shoots at the moisture absorption plate 359. The moisture absorption plate 359 adsorbs the moisture in the air, and then enters the cooling pipe 331. The air passes through the cooling pipe 331 and enters the connecting pipe 333, and the air returns to the interior of the cabinet body 1 through the pressure equalizing hole 32. Then, through the communication hole 342, when the air flow flows in the cooling pipe 331, the air inside the cabinet body 1 is drawn into the injection pipe 332, and finally enters the cooling pipe 331 to participate in the cycle, obtaining a better cooling effect. And the injection air flow can carry impurities such as dust inside the cabinet body 1 into the cooling pipe 331 to clean the interior of the cabinet body 1.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit them. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. A fixed high-voltage ring network cabinet with a lower isolation belt ground knife, characterized in that: include: A cabinet body (1), wherein the inner side surface of the cabinet body (1) is rotatably connected to a cabinet door (2) via a hinge; A cooling component (3), the cooling component (3) being provided with two parts, the two parts of the cooling component (3) being fixedly connected to the inner and outer side surfaces of the cabinet (1) respectively; Wherein, the cooling component (3) comprises: A hollow plate (31), the hollow plate (31) being fixedly connected to the inner side surface of the cabinet body (1), a side of the hollow plate (31) close to the top of the cabinet body (1) being slidably connected to the surface of the cabinet door (2), and a flattening hole (32) being provided on a side of the hollow plate (31) close to the cabinet door (2); A pipeline assembly (33), wherein the pipeline assembly (33) is embedded in the cabinet (1), and a side of the pipeline assembly (33) close to the inner side surface of the cabinet (1) extends into the cavity of the cabinet (1); A bearing assembly (34) is fixedly connected to one side of the hollow plate (31) close to the cabinet door (2); the bearing assembly (34) is fixedly connected to the inner side of the cabinet body (1); the bearing assembly (34), the cabinet body (1) and the cabinet door (2) form a closed space; A filter assembly (35), wherein the filter assembly (35) is fixedly connected to a side of the cabinet body (1) close to the cabinet door (2).

2. According to claim 1, a fixed high-voltage ring network cabinet with a lower isolation belt and a ground knife, characterized in that: A plurality of the equalizing holes (32) are evenly distributed on the surface of the hollow plate (31); a side of the pipeline assembly (33) close to the hinge of the cabinet (1) is in communication with the inner cavity of the hollow plate (31); and a side of the pipeline assembly (33) away from the hollow plate (31) is in communication with the filter assembly (35).

3. The fixed high-voltage ring network cabinet with lower isolation belt ground knife according to claim 2 is characterized in that: The pipeline assembly (33) comprises a cooling pipe (331), the cooling pipe (331) being embedded in the cabinet (1), and the outer side surface of the cooling pipe (331) being fixedly connected to the inner side surface of the cabinet (1), one end of the cooling pipe (331) close to the top of the cabinet (1) extending to the outside of the cabinet (1), and the end of the cooling pipe (331) extending to the outside of the cabinet (1) is located inside the filter assembly (35), the cooling pipe (331) is arranged in a serpentine shape, and the cooling pipe (331) is arranged around three sides of the cabinet (1).

4. The fixed high-voltage ring network cabinet with lower isolation belt ground knife according to claim 3 is characterized by: Two opposite side surfaces of the cabinet (1) are fixedly connected with ejector tubes (332), the ejector tubes (332) extending into the interior of the cabinet (1), and one end of the ejector tube (332) located inside the cabinet (1) is fixedly connected to the outer side surface of the cooling tube (331), and the outer side surface of the ejector tube (332) is fixedly connected to the inner side surface of the cabinet (1).

5. The fixed high-voltage ring network cabinet with lower isolation belt ground knife according to claim 4 is characterized in that: A plurality of the ejector tubes (332) are provided, and the ejector tubes (332) are evenly distributed on two opposite inner side surfaces of the cabinet (1), and the plurality of the ejector tubes (332) are evenly distributed along the serpentine path of the cooling tube (331).

6. The fixed high-voltage ring network cabinet with lower isolation belt ground knife according to claim 5 is characterized by: A connecting pipe (333) is provided at one end of the cooling pipe (331) located inside the cabinet (1); the connecting pipe (333) penetrates the cabinet (1) and extends into the interior of the hollow plate (31); the outer side surface of the connecting pipe (333) is fixedly connected to the inner side surface of the cabinet (1), and the outer side surface of the connecting pipe (333) is fixedly connected to the inner side surface of the hollow plate (31).

7. The fixed high-voltage ring network cabinet with lower isolation belt ground knife according to claim 6 is characterized by: The bearing assembly (34) comprises a bearing platform (341), the bearing platform (341) being fixedly connected to a side of the hollow plate (31) close to the cabinet door (2), the surface of the bearing platform (341) being fixedly connected to the inner side surface of the cabinet body (1), the surface of the bearing platform (341) being provided with connecting holes (342), a plurality of the connecting holes (342) being evenly distributed, the flattening holes (32) being arranged in a circular shape, the connecting holes (342) being arranged in a strip shape, and the distribution patterns of the plurality of the flattening holes (32) and the connecting holes (342) being different.

8. The fixed high-voltage ring network cabinet with lower isolation belt ground knife according to claim 7 is characterized in that: The filter assembly (35) comprises a frame (351), the frame (351) being fixedly connected to a side of the cabinet (1) close to the cabinet door (2), the side of the cabinet (1) close to the cabinet door (2) being further fixedly connected to a filter box (352), and the frame (351) and the filter box (352) forming a U-shaped structure, a filter hole (354) being provided on a side of the filter box (352) away from the top of the cabinet (1), an air inlet hole (353) being provided on a side of the frame (351) away from the cabinet (1), and the filter hole (354) being in communication with the air inlet hole (353), and an end of the cooling pipe (331) located outside the cabinet (1) extending to the interior of the filter box (352).

9. The fixed high-voltage ring network cabinet with lower isolation belt ground knife according to claim 8 is characterized in that: A pump body (355) is provided at the bottom of the inner side surface of the filter box (352); both ends of the pump body (355) are fixedly connected to a tube body (356); a fixing frame (357) is fixedly connected to the surface of the pump body (355); the surface of the fixing frame (357) is fixedly connected to the inner side surface of the filter box (352); and the inner side surface of the fixing frame (357) is fixedly connected to the outer side surfaces of the two tube bodies (356), respectively.

10. The fixed high-voltage ring network cabinet with lower isolation belt ground knife according to claim 9, characterized in that: A plurality of filter plates (358) are evenly distributed directly above the tube body (356) away from the filter holes (354); the filter plates (358) are arranged in an X-shape, and the filter holes of the filter plates (358) are vertically opened; the surface of the filter plates (358) is fixedly connected to the inner side surface of the filter box (352); a moisture absorption plate (359) is arranged at the interval between two adjacent filter plates (358); the two sides of the moisture absorption plate (359) are respectively fixedly connected to the angle between the two filter plates (358); and the moisture absorption plate (359) is arranged in a corrugated shape.

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