A primary and secondary fusion complete ring network box with self-adaptive intelligent anti-condensation system

Abstract

This application relates to the technical field of ring main units, and discloses a primary and secondary integrated ring main unit with an adaptive intelligent anti-condensation system. The unit includes a housing with a placement slot, a cable compartment, and a control compartment. A first heat dissipation hole communicating with the placement slot is located on the side of the housing. A fan is located within the placement slot. The control compartment communicates with the first heat dissipation hole. A movable pipe communicating with the placement slot is located within the cable compartment, with the opening of the movable pipe located on the side of the control compartment near the fan. This application utilizes the mixing of outside air with humid air from the cable compartment. On one hand, the humid air directly participates in the heat exchange of the heating elements in the control compartment, carrying away heat. On the other hand, water vapor in the mixed gas, when flowing past the heating elements, can also absorb some heat due to its phase change (if it occurs) or its high specific heat capacity, further improving the heat dissipation effect of the control compartment.

Description

Technical Field

[0001] This application relates to the technical field of ring main units, and in particular to a primary and secondary integrated ring main unit with an adaptive intelligent anti-condensation system. Background Technology

[0002] The integrated primary and secondary ring main unit is a highly integrated power distribution switchgear that integrates the originally separate "primary equipment" (such as circuit breakers, load switches, disconnect switches, transformers and other high-voltage power distribution components) and "secondary equipment" (such as relay protection, automation control, monitoring and communication devices) in the power system into the same enclosure.

[0003] The ring main unit includes a box body and a door. The door is rotatably connected to the box body. The box body has a cable compartment and a control compartment, and the box body has ventilation holes that connect the cable compartment and the control compartment.

[0004] The cable compartment is usually located at the bottom of the ring main unit. Its base plate and cable inlet are directly connected to the ground or cable trench, which causes the area to be affected by soil evaporation and the intrusion of cold air from the outside for a long time, resulting in extremely high humidity. The control room contains a large number of electrical components, which continuously generate heat during operation, making the control room quite hot.

[0005] This physical field fragmentation phenomenon of "hot above and cold below, dry above and damp below" makes it difficult for traditional single-location or single-method heat dissipation measures to achieve the desired effect. Therefore, it is necessary to design a system that redistributes heat and moisture energy to adapt to the ring main unit. Summary of the Invention

[0006] To address the issue that traditional heat dissipation hole structures struggle to balance dryness at the top and dampness at the bottom, this application provides a primary and secondary integrated ring network box with an adaptive intelligent anti-condensation system.

[0007] This application provides a primary and secondary integrated ring network box with an adaptive intelligent anti-condensation system, which adopts the following technical solution: A primary and secondary integrated ring network box with an adaptive intelligent anti-condensation system includes a box body, a placement slot on the box body, a cable compartment and a control compartment inside the placement slot, a first heat dissipation hole on the side of the box body communicating with the placement slot, a fan inside the placement slot, the control compartment communicating with the first heat dissipation hole, and a movable pipe communicating with the placement slot inside the cable compartment, the opening of the movable pipe being located on the side of the control compartment near the fan.

[0008] By adopting the above technical solution, a fan drives outside air to flow from the first heat dissipation hole into the placement slot. Furthermore, the opening of the moving pipe is located on the side of the control room closer to the fan. When the fan starts, the negative pressure effect it generates preferentially acts on the closer moving pipe opening, causing the fan-driven air to flow rapidly towards the control room. This allows the humid air inside the cable room to flow towards the control room, reducing the moisture content inside the cable room and thus reducing the possibility of condensation. Simultaneously, by mixing outside air with the humid air inside the cable room, on the one hand, the humid air directly participates in the heat exchange of the heat-generating elements in the control room, carrying away heat; on the other hand, the water vapor in the mixed gas, when flowing past the heating elements, can also absorb some heat through phase change (if it occurs) or its high specific heat capacity, further improving the heat dissipation effect of the control room.

[0009] Optionally, a baffle is rotatably connected inside the movable pipe, the baffle being used to block the movable pipe, and the baffle being rotatable toward the placement groove.

[0010] By adopting the above technical solution, when air flows from the cable room to the control room, the air pushes the baffle, preventing the baffle from blocking the moving pipe, thus enabling stable airflow from the cable room to the control room; when air flows from the control room to the cable room, the air pushes the baffle, preventing the baffle from blocking the opening of the moving pipe, thus preventing continuous airflow from the control room to the cable room.

[0011] Optionally, a rotating inclined surface is provided on the end face of the stop bar away from the rotating shaft, and the thickness of the stop bar at the end away from the rotating shaft gradually decreases.

[0012] By adopting the above technical solution, when the gas flows along the direction from the control room to the moving pipeline, due to the certain inclination angle of the inclined plane, the force generated by the airflow on the inclined plane can be decomposed into a component force perpendicular to the inclined plane and a component force parallel to the inclined plane. Among them, the component force perpendicular to the inclined plane forms an effective rotational torque, which can "pry" or "push" the baffle, so that it can rotate smoothly and quickly around the direction of the placement slot around the rotation axis.

[0013] Optionally, the cable chamber is provided with a flow channel connecting the cable chamber, and the cable chamber is provided with a second heat dissipation hole penetrating the housing; when the first heat dissipation hole is used to introduce gas, the second heat dissipation hole is used to discharge gas.

[0014] By adopting the above technical solution, the fan drives the outside air and the air in the cable chamber to flow towards the control room. The air can flow from the flow channel towards the cable chamber and then be discharged from the second heat dissipation hole in the cable chamber. This allows the air to enter from the top and exit from the bottom, breaking the static temperature stratification phenomenon of "hot at the top and cold at the bottom" formed by natural convection in the traditional ring network box. This makes the temperature field in the entire box more uniform. The air flowing out of the control room, carrying a lot of heat, flows downward and is finally discharged from the second heat dissipation hole. It flows through and heats the originally cold and damp cable chamber. Even in a high humidity environment, water vapor is difficult to condense in the cable chamber because the surface temperature is actively raised. This achieves a synergistic anti-condensation effect of "heat driving away moisture", which is more thorough and reliable than simple dehumidification.

[0015] Optionally, the movable pipe is a flexible hose, and the housing is provided with a first mounting rod and a second mounting rod. The movable pipe is located between the first mounting rod and the second mounting rod, and the movable pipe bypasses the first mounting rod.

[0016] By adopting the above technical solution, the moving pipe bypasses the first mounting rod and is located between the first and second mounting rods, allowing the moving pipe to be in a bent state. Since the humid air below may carry some moisture when passing through, and the inner diameter of the moving pipe is small, a large amount of moisture may cause water to accumulate inside the moving pipe. Because the moving pipe is in a bent state, the accumulated water will not fall directly into the cable room along the moving pipe.

[0017] Optionally, the box is equipped with a drainage plate, the drainage plate has a drainage channel, the drainage channel is located on the side of the moving pipe close to the ground, the moving pipe has a drainage hole, and a sealing strip for sealing the drainage hole is rotatably connected to the moving pipe.

[0018] By adopting the above technical solution, the drainage hole is blocked by the sealing strip, making it difficult for water in the moving pipe to fall directly from the drainage hole, and the moving pipe is not easy to carry away air from the drainage channel; when there is a lot of water in the moving pipe, the sealing strip is rotated to open the drainage hole, so that the water can fall along the drainage hole into the drainage channel, and the water in the drainage channel can be removed from the box along the drainage plate.

[0019] Optionally, a first magnet is provided in the drainage channel, and a second magnet is provided on the sealing strip. The first magnet repels the second magnet. When the movable pipe located between the first mounting rod and the second mounting rod falls, the sealing strip opens the drainage hole.

[0020] By adopting the above technical solution, when there is too much water in the mobile pipe, the bent mobile pipe will fall between the first and second mounting rods. The first magnet repels the second magnet, causing the sealing strip to shake during the fall, which allows the sealing strip to open the drain hole. This allows some of the water in the mobile pipe to fall out automatically, so that the staff does not need to manually deal with the water in the mobile pipe, and the water in the mobile pipe will not accumulate too much.

[0021] Optionally, a fixed pipe is provided at the first heat dissipation hole, and the inner diameter of the fixed pipe gradually decreases along the direction from the first heat dissipation hole to the control room, and the movable pipe is disposed on the fixed pipe.

[0022] By adopting the above technical solution, when outside air enters the first heat dissipation hole under the drive of the fan, the airflow through the fixed pipe with a gradually decreasing inner diameter will cause the airflow velocity to increase significantly and the static pressure to decrease. This will create a local low-pressure zone near the throat or outlet of the fixed pipe, allowing the air in the cable compartment to be drawn into the control room, further improving the efficiency of airflow. When the fan speed increases and the air intake volume increases, the low-pressure effect generated by the fixed pipe will also be enhanced, and the suction force for moisture in the cable compartment will automatically increase, forming a positive adaptive relationship where the larger the air volume, the stronger the dehumidification capacity.

[0023] In summary, this application includes at least one of the following beneficial technical effects: A fan draws outside air from the first heat dissipation hole into the placement slot. Since the opening of the movable duct is located on the side of the control room closest to the fan, when the fan starts, the negative pressure effect it generates preferentially acts on the closer movable duct opening. The air drawn by the fan flows rapidly towards the control room, allowing humid air inside the cable compartment to flow towards the control room, reducing the moisture content inside the cable compartment and thus reducing the possibility of condensation. Simultaneously, the mixing of outside air with humid air from the cable compartment serves two purposes: firstly, the humid air directly participates in the heat exchange of the heating elements in the control room, carrying away heat; secondly, the water vapor in the mixed gas, upon flowing past the heating elements, can undergo a phase change (if it occurs) or its high specific heat capacity, further absorbing some heat and improving the heat dissipation effect of the control room.

[0024] When there is too much water in the mobile pipe, the bent mobile pipe will fall between the first and second mounting rods. The first magnet repels the second magnet, causing the sealing strip to shake during its fall. This allows the sealing strip to open the drain hole, allowing some of the water in the mobile pipe to fall out automatically. This eliminates the need for manual water removal by staff and prevents excessive water accumulation in the mobile pipe. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a schematic diagram highlighting the structure of the fan in the embodiments of this application; Figure 3 It is along Figure 1 Sectional view of line AA in the middle; Figure 4 yes Figure 3 Enlarged schematic diagram of part B in the middle; Figure 5 yes Figure 3 An enlarged schematic diagram of section C.

[0026] Reference numerals: 1. Box body; 11. Placement slot; 12. First heat dissipation hole; 13. Second heat dissipation hole; 14. Fan; 15. Fixed pipe; 2. Cable compartment; 21. Moving pipe; 211. Drainage hole; 212. Sealing strip; 213. Second magnet; 214. Baffle; 215. Rotating inclined plane; 22. First mounting rod; 23. Second mounting rod; 24. Through hole; 241. Drainage plate; 242. Drainage channel; 243. First magnet; 3. Control room; 31. Flow channel. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0028] This embodiment discloses a primary and secondary integrated ring network box with an adaptive intelligent anti-condensation system. (Refer to...) Figure 1 A primary and secondary integrated ring network box with an adaptive intelligent anti-condensation system includes a box body 1, on which a placement slot 11 is provided. The placement slot 11 contains a cable compartment 2 and a control compartment 3. The cable compartment 2 is used to connect cables and other wires, and the control compartment 3 contains a large number of electrical components.

[0029] Reference Figure 1 and Figure 2 The housing 1 has a first heat dissipation hole 12 on its side, which connects to the placement slot 11, and a second heat dissipation hole 13 on its back, which also connects to the placement slot 11. The first heat dissipation hole 12 is located on the side of the second heat dissipation hole 13 that is closer to the ground. The first heat dissipation hole 12 connects to the control room 3, and the second heat dissipation hole 13 connects to the cable room 2. A fan 14 is fixedly connected to the inner wall of the placement slot 11. The fan 14 is used to draw outside air into the placement slot 11 through the first heat dissipation hole 12.

[0030] Reference Figure 1 and Figure 3A fixed pipe 15 is provided in the placement slot 11. The inner diameter of the fixed pipe 15 gradually decreases along the direction from the first heat dissipation hole 12 to the control chamber 3. A movable pipe 21 is provided on the cable chamber 2. The movable pipe 21 is a flexible hose. One end of the movable pipe 21 is connected to the cable chamber 2, and the other end of the movable pipe 21 is connected to the fixed pipe 15.

[0031] Reference Figure 1 and Figure 2 When the fan 14 starts, the fan 14 drives outside air into the fixed pipe 15 through the first heat dissipation hole 12. Since the inner diameter of the fixed pipe 15 gradually decreases along the direction from the first heat dissipation hole 12 to the control room 3, the air velocity in the fixed pipe 15 increases, so that the air on the side of the moving pipe 21 close to the fixed pipe 15 is in a negative pressure state, allowing the air in the cable chamber 2 to flow towards the control room 3. This achieves the mixing of outside air with the humid air in the cable chamber 2 and the flow of the humid air into the control room 3, thereby reducing the humid gas in the cable chamber 2. At the same time, the humid gas dissipates heat from the electrical components in the control room 3.

[0032] Reference Figure 4 A baffle 214 is rotatably connected to the inner wall of the moving pipe 21, and the baffle 214 is located on the side of the moving pipe 21 closer to the control room 3. The baffle 214 can rotate in a direction away from or towards the opening of the moving pipe 21 near the fixed pipe 15, thereby blocking the moving pipe 21. A rotating inclined surface 215 is formed on the end face of the baffle 214 away from the rotating axis, and the thickness of the baffle 214 gradually decreases at the end away from the rotating axis. The distance between the rotating inclined surface 215 and the control room 3 gradually decreases in the vertically downward direction.

[0033] Reference Figure 4 When the fan 14 stops, if air flows from the fixed pipe 15 through the moving pipe 21 to the cable chamber 2, the air should rotate the inclined plane 215 to drive the baffle 214 to rotate in the moving pipe 21, so that the baffle 214 blocks the moving pipe 21, thereby reducing the possibility of air reversal.

[0034] Reference Figure 2 and Figure 3 A flow channel 31 is provided inside the control room 3, which connects to the cable compartment 2. The opening of the flow channel 31 is located on the side of the cable compartment 2 away from the ground. A second heat dissipation hole 13 is provided on the back of the cable compartment 2, which penetrates the housing 1 and connects to the outside. The second heat dissipation hole 13 is located on the side of the moving pipe 21 near the ground, and air in the flow channel 31 flows downward through the second heat dissipation hole 13 in the cable compartment 2.

[0035] Reference Figure 4 and Figure 5A first mounting rod 22 and a second mounting rod 23 are fixedly connected to the wall of the placement groove 11. A movable pipe 21 passes between the first mounting rod 22 and the second mounting rod 23, with the first mounting rod 22 located on the side of the second mounting rod 23 away from the ground. The movable pipe 21 is located on the side of the second mounting rod 23 away from the ground, and it bypasses the first mounting rod 22 to connect to the fixed pipe 15. The movable pipe 21 has excess slack on the side closest to the control room 3, meaning the movable pipe 21 is not taut.

[0036] Reference Figure 5 When the humid gas in the cable chamber 2 passes through the moving pipe 21, water may accumulate due to the small inner diameter of the moving pipe 21. Since the moving pipe 21 bypasses the first mounting rod 22, that is, the moving pipe 21 bends between the first mounting rod 22 and the second mounting rod 23, the accumulated water is not easily backflowed from the moving pipe 21 into the cable chamber 2.

[0037] Reference Figure 5 A drain hole 211 is provided on the outer surface of the movable pipe 21, extending circumferentially. A sealing strip 212 is rotatably connected to the outer surface of the movable pipe 21, used to seal the opening of the drain hole 211. A through hole 24 is provided on the housing 1, connecting to the placement groove 11. A drain plate 241 is fixedly connected in the through hole 24, and a drain channel 242 is provided on the drain plate 241, connecting to the through hole 24.

[0038] Reference Figure 5 A first magnet 243 is fixedly connected to the inner wall of the drainage channel 242, and a second magnet 213 is provided on the sealing strip 212. The first magnet 243 repels the second magnet 213. When there is water in the moving pipe 21, the moving pipe 21 located at the first mounting rod 22 and the second mounting rod 23 falls due to the gravity of the water. The sealing strip 212 in the moving pipe 21 approaches the first magnet 243. As the moving pipe 21 continues to fall, the first magnet 243 repels the second magnet 213, and the sealing strip 212 rotates on the moving pipe 21, causing the sealing strip 212 to open the drainage hole 211, allowing the water to fall from the drainage hole 211 into the drainage channel 242 and be discharged.

[0039] The implementation principle of the integrated primary and secondary ring network box with an adaptive intelligent anti-condensation system in this application embodiment is as follows: When the fan 14 is started, the fan 14 drives the outside air into the fixed pipe 15 through the first heat dissipation hole 12. Since the inner diameter of the fixed pipe 15 gradually decreases along the direction from the first heat dissipation hole 12 to the control chamber 3, the air velocity in the fixed pipe 15 increases, so that the air on the side of the moving pipe 21 close to the fixed pipe 15 is in a negative pressure state, allowing the air in the cable chamber 2 to flow towards the control chamber 3, realizing the mixing of outside air with the humid air in the cable chamber 2 and flowing towards the control chamber 3. The air in the control chamber 3 flows towards the cable chamber 2 through the flow channel 31, and then the air in the cable chamber 2 can be discharged from the second heat dissipation hole 13.

[0040] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.

Claims

1. A primary and secondary fusion integrated ring network box with an adaptive intelligent anti-condensation system, characterized in that: The enclosure includes a housing (1), on which a placement slot (11) is provided. A cable chamber (2) and a control chamber (3) are provided in the placement slot (11). A first heat dissipation hole (12) communicating with the placement slot (11) is provided on the side of the housing (1). A fan (14) is provided in the placement slot (11). The control chamber (3) is connected to the first heat dissipation hole (12). A moving pipe (21) communicating with the placement slot (11) is provided in the cable chamber (2). The opening of the moving pipe (21) is located on the side of the control chamber (3) near the fan (14).

2. The primary and secondary fusion integrated ring net case with self-adaptive intelligent anti-condensation system according to claim 1, characterized in that: A baffle (214) is rotatably connected inside the moving pipe (21). The baffle (214) is used to block the moving pipe (21). The baffle (214) can rotate in the direction of the placement groove (11).

3. The integrated primary and secondary ring network box with an adaptive intelligent anti-condensation system according to claim 2, characterized in that: The baffle (214) has a rotating inclined surface (215) on the end face away from the rotating shaft, and the thickness of the baffle (214) gradually decreases at the end away from the rotating shaft.

4. The integrated primary and secondary ring network box with an adaptive intelligent anti-condensation system according to claim 1, characterized in that: The cable chamber (2) is provided with a flow channel (31) that connects to the cable chamber (2), and the cable chamber (2) is provided with a second heat dissipation hole (13) that penetrates the box body (1); when the first heat dissipation hole (12) is used to bring in gas, the second heat dissipation hole (13) is used to discharge gas.

5. A primary and secondary integrated ring network box with an adaptive intelligent anti-condensation system according to claim 1, characterized in that: The movable pipe (21) is a flexible hose. The housing (1) is provided with a first mounting rod (22) and a second mounting rod (23). The movable pipe (21) is located between the first mounting rod (22) and the second mounting rod (23). The movable pipe (21) bypasses the first mounting rod (22).

6. A primary and secondary integrated ring network box with an adaptive intelligent anti-condensation system according to claim 5, characterized in that: The box (1) is provided with a drainage plate (241), and a drainage channel (242) is provided on the drainage plate (241). The drainage channel (242) is located on the side of the moving pipe (21) close to the ground. A drainage hole (211) is provided on the moving pipe (21), and a sealing strip (212) for sealing the drainage hole (211) is rotatably connected to the moving pipe (21).

7. A primary and secondary integrated ring network box with an adaptive intelligent anti-condensation system according to claim 6, characterized in that: The drainage channel (242) is provided with a first magnet (243), and the sealing strip (212) is provided with a second magnet (213). The first magnet (243) repels the second magnet (213). When the movable pipe (21) located between the first mounting rod (22) and the second mounting rod (23) falls, the sealing strip (212) opens the drainage hole (211).

8. A primary and secondary integrated ring network box with an adaptive intelligent anti-condensation system according to claim 1, characterized in that: A fixed pipe (15) is provided at the first heat dissipation hole (12). The inner diameter of the fixed pipe (15) gradually decreases along the direction from the first heat dissipation hole (12) to the control room (3). The moving pipe (21) is set on the fixed pipe (15).

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