Gas insulated ring main unit and heat dissipation method thereof

Abstract

The invention discloses a gas insulated ring network cabinet and a heat dissipation method thereof, and relates to the technical field of ring network cabinets. The heat dissipation structure comprises a heat dissipation component, and the heat dissipation component comprises a heat conducting plate and a heat insulation cover. An air suction pipe is arranged inside the heat insulation cover, an air inlet pipe is arranged on the top of the air suction pipe, a U-shaped tube is arranged on the bottom of the air suction pipe, an exhaust pipe is arranged at one end of the U-shaped tube, and a fan is installed on the exhaust pipe. The invention enables the air inlet pipe to generate suction through the fan, and external air enters the cabinet top through the air inlet port. In the process of being transported to the exhaust end through the air suction pipe, the high-temperature gas in the heat insulation cover is brought out to the outside by using the air suction head. In this process, the external air enters the air suction pipe only through the air inlet port and the air inlet pipe to dissipate heat and cool down the inside of the heat insulation cover, and the exhaust end is discharged to the outside through the heat dissipation hole, so that the gas insulated ring network cabinet dissipates heat and cools down at a specific inlet and a specific outlet, and moisture or impurities in the environment are prevented from condensing and accumulating inside the ring network cabinet. Pollution.

Description

Technical Field

[0001] The invention relates to the technical field of ring main unit, and in particular to a gas insulated ring main unit and a heat dissipation method thereof. Background Art

[0002] The gas insulated ring main unit is an important equipment in the power grid. Whether the gas insulated ring main unit can operate stably is directly related to the safety of the power grid. The heat dissipation problem of the gas insulated ring main unit has a great impact on the stable operation of the gas insulated ring main unit. When the temperature in the gas insulated ring main unit is too high, its internal insulation performance will be reduced, thereby increasing the risk of electrical failure and mechanical failure, causing power outages and affecting the safety of the power grid.

[0003] A Chinese patent with announcement number CN216413728U discloses a high-voltage ring network cabinet with a ventilation device, including a cabinet body for installing and fixing the internal high-voltage device. The side walls of the cabinet body are symmetrically provided with ventilation holes near the bottom to facilitate internal and external air circulation. The tops of the multiple ventilation holes are fixedly connected with water baffles to prevent external rainwater from entering the cabinet. The side walls of the cabinet body are symmetrically bolted with dustproof components near the middle.

[0004] A Chinese patent with announcement number CN112165017B discloses a gas-insulated fully enclosed ring network cabinet, including an electrical room and a ring network cabinet body, wherein the electrical room is installed inside the ring network cabinet body, a cooling fan is installed inside the connecting groove, a pyramid-shaped ring network cabinet inner top is welded on the top of the ring network cabinet body, and a built-in groove is opened between the ring network cabinet inner top and the ring network cabinet body, both sides of the ring network cabinet inner top and both ends of the back are connected to a first gear plate through a support rod, and a ring network cabinet outer top is fixed directly above the ring network cabinet inner top, and the ring network cabinet outer top is composed of a first triangular outer top plate, a second triangular outer top plate, a third triangular outer top plate and a fourth triangular outer top plate arranged in an inclined manner with respect to each other.

[0005] The above-mentioned ring main unit solves the internal heat dissipation problem mainly by relying on the cooling fan to promote the internal and external air circulation to achieve cooling. When the external environment is humid, as the internal and external air circulate, the external moisture will come into contact with the ring main unit along with the heat dissipation airflow, and when the temperature difference between the inside and outside of the ring main unit is large, condensation will form on the ring main unit, causing great safety hazards to the normal use of the gas insulated ring main unit and affecting the service life of the gas insulated ring main unit. In addition, when the cabinet body is continuously exposed to outdoor sunlight, the high temperature on the top of the cabinet will continue to be transmitted to the inside of the cabinet body, resulting in the heat dissipation mechanism inside the cabinet body failing to achieve effective cooling of the inside of the cabinet body.

[0006] In addition, when the ambient temperature near the ring network cabinet is high, since the temperatures inside and outside the ring network cabinet are almost the same, the heat dissipation of the internal temperature of the ring network cabinet cannot be effectively improved by promoting the exchange of air inside and outside, and impurities will be attached to the outside of the ring network cabinet. The impurity layer attached to the outside of the ring network cabinet not only affects the cleanliness of the outside of the ring network cabinet, but also affects the heat dissipation capacity of the ring network cabinet due to the impurity layer.

[0007] Therefore, a gas insulated ring main unit and a heat dissipation method thereof are proposed to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to disclose a gas insulated ring main unit and a heat dissipation method thereof, so as to solve the problems raised in the above background technology.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: a gas insulated ring network cabinet, comprising a protective cabinet, a cabinet top and a ring network cabinet body, the ring network cabinet body is provided with electrical components, the protective cabinet is provided with heat dissipation holes, one side of the cabinet top is provided with an air inlet, the bottom of the protective cabinet is provided with a base, the outside of the protective cabinet is provided with a cabinet door, the cabinet door is provided with a lock, and the bottom of the protective cabinet is provided with a cable channel.

[0010] Optionally, a sealing gasket is provided at the connection between the cabinet door and the protective cabinet, and the longitudinal section of the cabinet top is a trapezoidal structure.

[0011] A heat dissipation structure, which is applied to the gas insulated ring main unit as described above, comprises a heat dissipation component, the heat dissipation component comprises a heat conducting plate and a heat insulation cover, an air intake pipe is arranged inside the heat insulation cover, an air inlet pipe is arranged on the top of the air intake pipe, a U-shaped tube is arranged at the bottom of the air intake pipe, an exhaust pipe is arranged at one end of the U-shaped tube, and a fan is installed on the exhaust pipe;

[0012] It also includes a heat insulation component, which includes a water storage tank, with a water outlet pipe and a water return pipe at both ends of the water storage tank, a water pump and a first valve at the bottom of the water outlet pipe and the water return pipe, and a bend pipe at the top of the water outlet pipe and the water return pipe;

[0013] An extension pipe is provided at the top of the curved pipe, a second valve and a water inlet valve are provided on the extension pipe, and a water spray head is provided at the top of the extension pipe;

[0014] An inner tube is arranged on the top of the water storage tank, a locking valve is arranged on the bottom end of the inner tube, and the top end of the inner tube passes through the U-shaped cylinder and is located inside the air intake pipe.

[0015] Optionally, the heat conducting plate is arranged on one side of the ring main unit body, the heat conducting plate is an aluminum plate, and a temperature insulating layer is arranged inside the heat insulating cover;

[0016] The suction pipe is provided with a suction head, and the U-shaped cylinder is fixedly connected to the heat insulation cover.

[0017] Optionally, the exhaust pipe is matched with the heat dissipation hole, the top of the air inlet pipe passes through the heat insulation cover and the protective cabinet in sequence and is located inside the cabinet top, and the fan is a bidirectional fan;

[0018] The side of the top of the air inlet pipe close to the air inlet is inclined, and a filter screen is arranged on the top of the air inlet pipe.

[0019] Optionally, a water level gauge is provided in the water tank, a semiconductor refrigeration plate is provided on the water tank, and a refrigeration end of the semiconductor refrigeration plate is located inside the water tank.

[0020] Optionally, one end of the curved pipe is fixedly connected to the top of the water outlet pipe, and the other end of the curved pipe is fixedly connected to the top of the water return pipe. The water pump is a bidirectional water pump, and there is a gap between the inner pipe and the suction pipe.

[0021] Optionally, a water collecting tank is provided on the top of the cabinet, the bottom of the water collecting tank is inclined, the water inlet valve corresponds to the lower part of the water collecting tank, a water immersion sensor is provided at the upper part of the water collecting tank, a water inlet is provided at a position corresponding to the water inlet valve on the extension pipe, the water inlet valve corresponds to the water inlet hole, and the second valve is located at one end of the extension pipe close to the bend.

[0022] Optionally, the top of the extension pipe passes through the top of the cabinet and is connected to a sprinkler head, the sprinkler head includes a water storage tray and a diverter plate, there are multiple diverter plates, the diverter plates are fixedly connected to the sprinkler head, and a closing valve is provided on the top of the inner tube.

[0023] A heat dissipation method for a gas insulated ring main unit comprises the following steps:

[0024] S1. By setting the heat conducting plate, the heat generated in the ring main unit body is gathered at the position of the heat conducting plate, and the heat gathered in the heat insulation cover is continuously discharged outward during the operation of the fan;

[0025] S2. The low-temperature water pre-stored in the water storage tank is continuously circulated and transported to the bent pipe under the drive of the water pump, and the low-temperature water is used to achieve heat insulation between the external high temperature and the ring main unit body;

[0026] S3. With the cooperation of the first valve and the water pump, the water is pumped into the water storage tank through the water pump, the first valve is closed, and the locking valve is opened, so that the low-temperature water in the water storage tank can be supplied to the air intake pipe through the inner pipe, thereby achieving a dual heat dissipation effect of gas circulation and low-temperature liquid cooling;

[0027] S4. By closing the first valve and opening the second valve, driven by the water pump, low-temperature water enters the sprinkler head through the extension pipe to flush, clean, and cool the cabinet top and the protective cabinet.

[0028] Technical effects and advantages of the present invention:

[0029] 1. The present invention generates suction through the air inlet pipe by the fan, and the external gas enters the cabinet top through the air inlet. In the process of being transported to the exhaust end through the air intake pipe, the high-temperature gas in the heat insulation cover is brought out by the air intake head. In this process, the external gas only enters the air intake pipe through the air inlet and the air intake pipe to dissipate heat and cool the inside of the heat insulation cover, and the exhaust end is discharged to the outside through the heat dissipation holes, so that the gas insulated ring network cabinet dissipates heat and cools the inside of the ring network cabinet through a specific inlet and a specific outlet, thereby avoiding condensation and accumulation of moisture or impurities in the environment inside the ring network cabinet.

[0030] 2. The present invention starts with a water pump, so that the low-temperature water in the water tank is continuously supplied to the bent pipe through the outlet pipe, and the low-temperature water is used to cool the cabinet top, thereby achieving the effect of blocking the high temperature of the cabinet top, avoiding the problem of excessive temperature caused by continuous exposure of outdoor sunlight to the cabinet top, and the overheated temperature being transmitted downward to affect the heat dissipation of the ring network cabinet body and the protective cabinet.

[0031] 3. After the first valve is closed and the locking valve is opened, the present invention uses the water pump to start in reverse to increase the pressure in the water tank. The low-temperature water in the water tank is transported upward through the bottom end of the inner tube and the locking valve is closed to allow the low-temperature water to exchange heat with the hot air in the heat insulation cover. While the heat exchange between the low-temperature water and the hot air in the heat insulation cover is achieved, the fan continuously brings the hot air in the heat insulation cover out.

[0032] 4. In the present invention, when the first valve is closed and the second valve is opened, the water pump runs forward, and the low-temperature water enters the elbow and the sprinkler head in sequence under the transportation of the water pump and is sprayed outward. The low-temperature water is sprayed onto the cabinet top to cool the cabinet top, and at the same time, impurities on the outer surface of the cabinet top and the outer surface of the protective cabinet are washed away, thereby achieving the effect of cleaning the cabinet top and the outer surface of the protective cabinet and cooling and dissipating the heat, and reducing the influence of impurities on the cabinet top and the heat dissipation of the protective cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the gas insulated ring main unit of the present invention;

[0034] Figure 2 It is a schematic diagram of the rear structure of the gas insulated ring main unit of the present invention;

[0035] Figure 3 It is a schematic diagram of the structure of the ring main unit body, the heat dissipation component and the heat insulation component of the present invention;

[0036] Figure 4It is a schematic diagram of the structure above the cabinet top of the present invention;

[0037] Figure 5 It is a schematic diagram of the cross-sectional structure of the heat insulation cover and the air intake pipe of the present invention;

[0038] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of the middle B area;

[0039] Figure 7 It is a schematic diagram of the coordination between the cabinet top and the diverter plate structure of the present invention;

[0040] Figure 8 It is a schematic diagram of the internal structure of the water storage tray of the present invention.

[0041] In the figure: 1. protective cabinet; 101. heat dissipation hole; 102. base; 2. cabinet top; 201. air inlet; 202. water collection tank; 2022. water immersion sensor; 3. ring network cabinet body; 4. heat dissipation component; 401. heat conduction plate; 402. heat shield; 403. air intake pipe; 404. air intake head; 405. U-shaped cylinder; 406. exhaust pipe; 407. fan; 408. air intake Pipe; 5, insulation assembly; 501, water storage tank; 502, water outlet pipe; 503, return pipe; 504, water pump; 505, first valve; 506, elbow; 507, extension pipe; 508, second valve; 5081, water inlet valve; 509, sprinkler head; 5091, water storage tray; 50911, impeller; 5092, diverter plate; 510, inner pipe; 511, locking valve. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from the description. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0044] Embodiment 1

[0045] See also Figure 1-8The present embodiment discloses a gas insulated ring network cabinet, comprising a protection cabinet 1, a cabinet top 2, a ring network cabinet body 3, a heat dissipation component 4 and a heat insulation component 5. The heat dissipation component 4 is arranged on one side of the ring network cabinet body 3, and the heat insulation component 5 is located on the inner side of the cabinet top 2. Electrical components are arranged in the ring network cabinet body 3, and a heat dissipation hole 101 is opened on the protection cabinet 1. An air inlet 201 is opened on one side of the cabinet top 2. A base 102 is arranged at the bottom of the protection cabinet 1, and a cabinet door is arranged on the outer side of the protection cabinet 1. A lock is arranged on the cabinet door. A cable channel is arranged at the bottom of the protection cabinet 1, and a sealing gasket is arranged at the connection between the cabinet door and the protection cabinet 1. The cabinet top 2 has a trapezoidal structure in longitudinal section. The protection cabinet 1 is used to provide protection for the ring network cabinet body 3, and the heat dissipation component 4 discharges the heat generated by the electrical components to the outside through the heat dissipation hole 101 for heat dissipation, and the heat insulation component 5 continuously maintains heat dissipation and cooling of the cabinet top 2.

[0046] like Figure 3 , Figure 5 and Figure 6 As shown, specifically, the heat dissipation component 4 includes a heat conducting plate 401 and a heat insulating cover 402. The heat conducting plate 401 is arranged on one side of the ring main unit body 3. The heat conducting plate 401 is preferably a copper plate, an aluminum plate or a graphene plate. A temperature insulation layer is arranged inside the heat insulating cover 402. An air suction pipe 403 is arranged inside the heat insulating cover 402. An air suction head 404 is arranged outside the air suction pipe 403. An air intake pipe 408 is arranged on the top of the air suction pipe 403. The top of the air intake pipe 408 passes through the heat insulating cover 402 and the protective cabinet 1 in sequence and is located inside the cabinet top 2. The air intake pipe 408 is arranged on the top of the protective cabinet 1 and is located inside the cabinet top 2. The side of the top of 408 close to the air inlet 201 is inclined, and a filter screen is provided on the top of the air inlet pipe 408. The filter screen is inclined, and impurities attached to the filter screen slide down along the inclined surface of the filter screen. A U-shaped tube 405 is provided at the bottom of the air intake pipe 403, and the U-shaped tube 405 is fixedly connected to the heat insulation cover 402. An exhaust pipe 406 is provided at one end of the U-shaped tube 405 away from the air intake pipe 403. The exhaust pipe 406 corresponds to the heat dissipation hole 101, and a fan 407 is installed on the exhaust pipe 406. The fan 407 is a two-way fan.

[0047] like Figure 3-8 As shown, specifically, the insulation component 5 includes a water tank 501, in which water is pre-stored, and an outlet pipe 502 and a return pipe 503 are respectively provided at both ends of the water tank 501, and a water pump 504 and a first valve 505 are respectively provided at the bottom ends of the outlet pipe 502 and the return pipe 503, and a curved pipe 506 is provided at the top of the outlet pipe 502 and the return pipe 503, one end of the curved pipe 506 is fixedly connected to the top of the outlet pipe 502, and the other end of the curved pipe 506 is fixedly connected to the top of the return pipe 503. Driven by the water pump 504, the water in the water tank 501 passes through the outlet pipe 502, the curved pipe 506, the return pipe 503 and the water tank 501 in sequence and circulates.

[0048] When in use, the protection cabinet 1 protects the ring network cabinet body 3 and the electrical components inside it. A temperature sensor is provided on the heat insulation cover 402. The temperature sensor detects the heat in the heat insulation cover 402, and the fan 407 is started to make the air inlet pipe 408 generate suction, and the external gas continues to enter the cabinet top 2 through the air inlet 201. At the same time, the heat generated by the operation of the electrical components in the ring network cabinet body 3 is discharged outward under the attraction of the negative pressure in the suction pipe 403. In this process, the air inlet pipe 408, the suction pipe 403, the U-shaped tube 405 and the exhaust pipe 406 constitute a circulating heat dissipation pipeline. The air inlet 201 serves as a specific entrance for external gas to enter the suction pipe 403 in the circulating heat dissipation pipeline, and the exhaust end of the exhaust pipe 406 serves as a specific outlet for external gas to discharge the suction pipe 403 in the circulating heat dissipation pipeline. Therefore, in the process of dissipating the heat in the heat insulation cover 402 through external gas circulation, moisture and impurities in the environment are prevented from entering the protection cabinet 1 to produce condensation or accumulation of impurities. Pollution.

[0049] When the water pump 504 is started, the water pre-stored in the water tank 501 enters the curved pipe 506 through the outlet pipe 502, and then enters the water tank 501 through the return pipe 503. The water tank 501 is provided with a semiconductor refrigeration plate, and the cooling end of the semiconductor refrigeration plate is located inside the water tank 501. The water body returning to the water tank 501 is cooled by the semiconductor refrigeration plate, so that the water body in the water tank 501 is kept at a low temperature. During the continuous startup of the water pump 504, the low-temperature water is continuously supplied to the curved pipe 506, and the low-temperature water has a cooling effect on the cabinet top 2, so as to achieve the effect of blocking the high temperature of the cabinet top 2, thereby avoiding the continuous exposure of outdoor sunlight to the cabinet top 2, resulting in excessive temperature, and the overheating temperature is transmitted downward, affecting the heat dissipation of the ring network cabinet body 3 and the protective cabinet 1.

[0050] Embodiment 2

[0051] See also Figure 1-8 As shown, when the ambient temperature near the protection cabinet 1 is high, the temperature of the external air is also high. The method of relying on the fan 407 to take the heat out of the heat insulation cover 402 cannot effectively improve the heat dissipation efficiency of the ring network cabinet body 3. In this regard, the following embodiments are provided to solve the problem:

[0052] An inner tube 510 is provided at the top of the water tank 501 at a position corresponding to the U-shaped tube 405, and a locking valve 511 is provided at the bottom of the inner tube 510. The top of the inner tube 510 passes through the U-shaped tube 405 and is located inside the intake pipe 403. There is a gap between the inner tube 510 and the intake pipe 403. A closing valve is provided on the top of the inner tube 510, and the top of the inner tube 510 can be closed by the closing valve to prevent impurities from entering the inner tube 510 along with the gas through the intake pipe 403.

[0053] During use, the temperature in the heat insulation cover 402 is detected by the temperature sensor. When the heat in the heat insulation cover 402 is brought out through the gap between the inner tube 510 and the air intake pipe 403 by the fan 407, if the temperature in the heat insulation cover 402 continues to remain at the preset value, it indicates that the external environment temperature is too high. In this regard, the water pump 504 is a two-way water pump. The water pump 504 is reversely started. At the same time, the first valve 505 is closed and the locking valve 511 is opened. At this time, the water pump 504 pressurizes the water storage tank 501, so that the low-temperature water after refrigeration in the water storage tank 501 is transported upward through the bottom end of the inner tube 510. When the water pump 504 is reversely started for a preset time, the low-temperature water just moves to the top of the inner tube 510. At this time, the bottom end of the inner tube 510 is closed through the locking valve 511. Low-temperature water is used to exchange heat with the hot air in the heat insulation cover 402. While achieving heat exchange between the low-temperature water and the hot air in the heat insulation cover 402, the fan 407 continuously brings the hot air in the heat insulation cover 402 outward, realizing the dual cooling and heat dissipation effects of gas circulation and low-temperature liquid cooling, thereby improving the heat dissipation efficiency of the heat in the heat insulation cover 402. Among them, when the water pump 504 suspends reverse delivery and opens the locking valve 511, the water in the inner tube 510 can flow back to the water storage tank 501. After the semiconductor refrigeration plate cools the water, the reverse delivery of the water pump 504 is used in conjunction with the closing of the first valve 505 to transport the low-temperature water to the inner tube 510 again, so that the water in the inner tube 510 remains at a low temperature and maintains the heat exchange effect with the hot air in the heat insulation cover 402.

[0054] In addition, the above-mentioned method of continuously delivering low-temperature water to the elbow 506 by using the water pump 504 can only separate the external high temperature from the temperature inside the cabinet top 2, while the temperature of the outer surface of the cabinet top 2 is still relatively high, which affects the cooling efficiency of the elbow 506 on the cabinet top 2. In addition, impurities will also adhere to the outer surface of the cabinet top 2. The accumulation of impurities will affect the heat dissipation capacity of the cabinet top 2 and the protective cabinet 1. In this regard, the following embodiments are proposed to solve the problem:

[0055] An extension pipe 507 is provided at the top of the curved pipe 506, and a second valve 508 is provided on the extension pipe 507. The second valve 508 is located at one end of the extension pipe 507 close to the curved pipe 506. A water spray head 509 is provided at the top of the extension pipe 507. The top of the extension pipe 507 passes through the top of the cabinet top 2 and is connected to the water spray head 509. The water spray head 509 includes a water storage tray 5091 and a diverter plate 5092. A plurality of diverter plates 5092 are provided. A spray head is fixedly connected to the diverter plate 5092. The extension pipe 507 is fixedly connected to the water storage tray 5091. A plurality of diverter plates 5092 are fixedly connected to the water storage tray 5091.

[0056] During use, the first valve 505 is closed, the second valve 508 is opened, and the water pump 504 runs forward. The low-temperature water in the water tank 501 enters the bent pipe 506 under the transportation of the water pump 504, and then passes through the water storage tray 5091 and the diverter plate 5092 in turn and is sprayed outward through the nozzle. The low-temperature water is sprayed onto the cabinet top 2 to cool the cabinet top 2. In the process of low-temperature water continuously spraying outward through the nozzle, the water flows along the inclined surface of the cabinet top 2 to the outer wall of the protective cabinet 1. In this process, impurities on the outer surface of the cabinet top 2 and the outer surface of the protective cabinet 1 are gradually loosened and washed off, thereby cleaning the impurities on the outer wall of the protective cabinet 1, achieving the cleaning and cooling and heat dissipation effects of the cabinet top 2 and the outer surface of the protective cabinet 1, and reducing the influence of impurities on the heat dissipation of the cabinet top 2 and the protective cabinet 1, thereby reducing the influence of impurities on the cabinet top 2 and the heat dissipation of the protective cabinet 1.

[0057] However, due to the high temperature in the cabinet top 2, the impurities attached to the top of the cabinet top 2 will be closely adhered to the upper surface of the cabinet top 2. At this time, it is difficult to remove the impurities by flushing the upper surface of the cabinet top 2 with water. In this regard:

[0058] The extension tube 507 is rotatably connected to the water storage tray 5091, and an impeller 5091 is fixedly installed in the inner cavity of the water storage tray 5091. The impact force of the water entering the water storage tray 5091 through the extension tube 507 on the impeller 5091 is utilized to make the impeller 5091 drive the water storage tray 5091 and the diverter plate 5092 to rotate synchronously. The nozzles are located on both sides of the diverter plate 5092, and the nozzles face the cabinet top 2. The cross-section of the cabinet top 2 is circular, and the lower surface of the diverter plate 5092 corresponds to the upper surface of the cabinet top 2.

[0059] During use, while the water pump 504 continuously transports the water in the water tank 501 to the curved pipe 506, the water moistens the impurities attached to the top of the cabinet top 2, reducing the adhesion strength between the impurities and the cabinet top 2. When the water pump 504 has transported the water outward for a preset time, the impurities on the top of the cabinet top 2 have been completely moistened. The rotation speed of the water pump 504 is then increased, so that the water entering the water storage tray 5091 through the extension pipe 507 continuously exerts an impact force on the impeller 50911, thereby causing the impeller 50911 to drive the water storage tray 5091 and the diverter plate 5092 to rotate. During the rotation of the diverter plate 5092, the lower surface of the diverter plate 5092 rotates in contact with the top of the cabinet top 2, and the lower surface of the diverter plate 5092 is used to scrape the moistened impurities on the top of the cabinet top 2 off the cabinet top 2, and the scraped impurities are thrown away from the cabinet top 2 by the centrifugal force during the rotation of the diverter plate 5092.

[0060] In addition, in order to maintain the water storage volume in the water tank 501, a water level gauge is provided in the water tank 501, and a water collecting tank 202 is opened on the top of the cabinet top 2. The bottom surface of the water collecting tank 202 is inclined, and the water inlet valve 5081 corresponds to the lower part of the water collecting tank 202. A water immersion sensor 2022 is provided at the upper part of the water collecting tank 202. The extension pipe 507 is provided with a water inlet valve 5081, and a water inlet is opened on the extension pipe 507 at a position corresponding to the water inlet valve 5081. The water inlet valve 5081 controls the opening and closing of the water inlet, thereby controlling the connection between the water collecting tank 202 and the extension pipe 507.

[0061] During use, when the gas insulated ring main unit encounters rainy weather through the water immersion sensor 2022, rainwater will gather in the sump 202. When the rainwater submerges the water immersion sensor 2022, the water immersion sensor 2022 will transmit the sensing signal to the controller, and the controller will open the water inlet valve 5081 and the second valve 508, and close the first valve 505. Rainwater will continue to enter the extension pipe 507 through the water inlet, and the rainwater will be continuously transported to the water tank 501 through the water pump 504 to replenish the water in the water tank 501.

[0062] Embodiment 3

[0063] A heat dissipation method for a gas insulated ring main unit comprises the following steps:

[0064] S1. By setting the heat conducting plate 401, the heat generated in the ring main unit body 3 is gathered at the position of the heat conducting plate 401. When the fan 407 is running, the heat gathered in the heat insulating cover 402 is continuously discharged to the outside.

[0065] S2. The low-temperature water stored in the water storage tank 501 is continuously circulated and transported to the curved pipe 506 under the drive of the water pump 504, and the low-temperature water is used to achieve heat insulation between the external high temperature and the ring main unit body 3.

[0066] S3. With the cooperation of the first valve 505 and the water pump 504, the water is transported into the water tank 501 through the water pump 504, the first valve 505 is closed, and the locking valve 511 is opened, so that the low-temperature water in the water tank 501 can be supplied to the intake pipe 403 through the inner tube 510, thereby achieving the dual heat dissipation effect of utilizing gas circulation and low-temperature liquid cooling.

[0067] S4. By closing the first valve 505 and opening the second valve 508, driven by the water pump 504, low-temperature water enters the water spray head 509 through the extension pipe 507 to flush, clean and cool the cabinet top 2 and the protective cabinet 1.

[0068] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gas insulated ring main unit, comprising a protection cabinet (1), a cabinet top (2), a ring main unit body (3) and a heat dissipation structure, wherein the protection cabinet (1) is located outside the ring main unit body (3), and is characterized in that: The ring main unit (3) is provided with electrical components, the protective cabinet (1) is provided with heat dissipation holes (101), one side of the cabinet top (2) is provided with an air inlet (201), the bottom of the protective cabinet (1) is provided with a base (102), the outer side of the protective cabinet (1) is provided with a cabinet door, the cabinet door is provided with a lock, and the bottom of the protective cabinet (1) is provided with a cable channel; The heat dissipation structure comprises a heat dissipation component (4), the heat dissipation component (4) comprises a heat conduction plate (401) and a heat insulation cover (402), the heat conduction plate (401) is arranged on one side of the ring main unit body (3) and is located inside the heat insulation cover (402), an air intake pipe (403) is arranged inside the heat insulation cover (402), an air intake pipe (408) is arranged at the top of the air intake pipe (403), a U-shaped tube (405) is arranged at the bottom of the air intake pipe (403), an exhaust pipe (406) is arranged at one end of the U-shaped tube (405), a fan (407) is installed on the exhaust pipe (406), and an air intake head (404) is arranged on the air intake pipe (403); It also includes a heat insulation component (5), the heat insulation component (5) including a water storage tank (501), the two ends of the water storage tank (501) are respectively provided with a water outlet pipe (502) and a water return pipe (503), the bottom ends of the water outlet pipe (502) and the water return pipe (503) are respectively provided with a water pump (504) and a first valve (505), the water pump (504) is a two-way water pump, the tops of the water outlet pipe (502) and the water return pipe (503) are provided with a bent pipe (506), and the bent pipe (506) is located at the lower part of the cabinet top (2); An extension pipe (507) is provided at the top of the curved pipe (506), a second valve (508) and a water inlet valve (5081) are provided on the extension pipe (507), and a water spray head (509) is provided at the top of the extension pipe (507); An inner tube (510) is provided at the top of the water storage tank (501), a locking valve (511) is provided at the bottom of the inner tube (510), the top end of the inner tube (510) passes through the U-shaped cylinder (405) and is located inside the air intake pipe (403), and a gap is provided between the inner tube (510) and the air intake pipe (403).

2. The gas insulated ring main unit according to claim 1, characterized in that: A sealing gasket is provided at the connection between the cabinet door and the protective cabinet (1), and the longitudinal section of the cabinet top (2) is a trapezoidal structure.

3. The gas insulated ring main unit according to claim 1, characterized in that: The heat conducting plate (401) is an aluminum plate, and a temperature insulating layer is provided inside the heat insulating cover (402); The U-shaped cylinder (405) is fixedly connected to the heat insulation cover (402).

4. The gas insulated ring main unit according to claim 1, characterized in that: The exhaust pipe (406) corresponds to the heat dissipation hole (101), the top of the air inlet pipe (408) passes through the heat insulation cover (402) and the protective cabinet (1) in sequence and is located inside the cabinet top (2), and the fan (407) is a bidirectional fan; The top of the air inlet pipe (408) is inclined on one side close to the air inlet (201), and a filter screen is provided on the top of the air inlet pipe (408).

5. The gas insulated ring main unit according to claim 1, characterized in that: A water level gauge is provided in the water storage tank (501), and a semiconductor cooling plate is provided on the water storage tank (501), wherein the cooling end of the semiconductor cooling plate is located inside the water storage tank (501).

6. The gas insulated ring main unit according to claim 1, characterized in that: One end of the curved pipe (506) is fixedly connected to the top of the water outlet pipe (502), and the other end of the curved pipe (506) is fixedly connected to the top of the water return pipe (503).

7. The gas insulated ring main unit according to claim 1, characterized in that: A water collecting trough (202) is provided on the top of the cabinet top (2), the bottom surface of the water collecting trough (202) is inclined, the water inlet valve (5081) corresponds to the lower part of the water collecting trough (202), a water immersion sensor (2022) is provided on the upper part of the water collecting trough (202), a water inlet is provided at a position corresponding to the water inlet valve (5081) on the extension pipe (507), the water inlet valve (5081) corresponds to the water inlet hole, and the second valve (508) is located at one end of the extension pipe (507) close to the curved pipe (506).

8. The gas insulated ring main unit according to claim 1, characterized in that: The top of the extension pipe (507) passes through the top of the cabinet top (2) and is connected to a water spray head (509). The water spray head (509) includes a water storage tray (5091) and a diverter plate (5092). A plurality of diverter plates (5092) are provided. The diverter plates (5092) are fixedly connected to the spray heads. A closing valve is provided at the top of the inner pipe (510).

9. The heat dissipation method of a gas insulated ring main unit according to claim 1, characterized in that: The following steps are involved: S1. By setting the heat conducting plate (401), the heat generated in the ring main unit body (3) is gathered at the position of the heat conducting plate (401), and when the fan (407) is in operation, the heat gathered in the heat insulation cover (402) is continuously discharged outwards; S2, the low-temperature water pre-stored in the water storage tank (501) is continuously circulated and transported to the curved pipe (506) under the drive of the water pump (504), and the low-temperature water is used to achieve heat insulation between the external high temperature and the ring main unit body (3); S3. With the cooperation of the first valve (505) and the water pump (504), the water is transported into the water storage tank (501) through the water pump (504), the first valve (505) is closed, and the locking valve (511) is opened, so that the low-temperature water in the water storage tank (501) can be supplied into the air intake pipe (403) through the inner pipe (510), thereby achieving a dual heat dissipation effect using gas circulation and low-temperature liquid cooling; S4. By closing the first valve (505) and opening the second valve (508), driven by the water pump (504), low-temperature water enters the water spray head (509) through the extension pipe (507) to flush, clean, and cool the cabinet top (2) and the protective cabinet (1).

Images