Intelligent reactive power compensation device

Abstract

The intelligent reactive power compensation device comprises a box body provided with a plurality of through holes for heat dissipation, the inner wall of the box body is provided with a mounting cover covering the through holes, and the mounting cover comprises a cover body and a flange arranged along the periphery of the opening side of the cover body; a plurality of rain and snow intercepting nets and heat dissipation grid plates which are parallel to the inner wall of the box body are fixedly arranged in the mounting cover; the rain and snow intercepting net is formed by alternately stacking a plurality of hydrophilic fiber net layers and hydrophobic fiber net layers, and the heat dissipation grid plate and the installation cover are both made of metal materials. The heat dissipation grid plate comprises at least two layers of hexagonal grating plates parallel to each other and a plurality of connecting short rods used for connecting the adjacent hexagonal grating plates, and the connecting short rods are connected to grid nodes of the hexagonal grating plates on the two sides. Rainwater guide holes close to the bottom of the mounting cover are formed in the side wall of the box body and communicate with an inner cavity of the mounting cover and the outside of the box body. On the premise that the heat dissipation effect is not affected, the negative influence of rainwater can be reduced to the maximum extent, and it is ensured that the reactive power compensation device works stably.

Description

Technical Field

[0001] The invention belongs to the technical field of power grid accessories, and in particular relates to an intelligent reactive power compensation device. Background Art

[0002] The intelligent reactive power compensation box is equipped with a data acquisition control terminal to realize functions such as reactive power compensation and distribution network parameter processing. The main body of the reactive power compensation device is in the shape of a box, and the box is equipped with separate compensation capacitors, common compensation capacitors, and other electronic components that interact with the separate compensation and common compensation capacitors. To ensure the long-term and stable operation of the electronic components in the box. The side walls of the box are usually provided with a number of through holes for heat dissipation and to provide a relatively suitable working temperature for the electronic components inside the box. However, reactive power compensation devices are usually installed outdoors, and the opening of through holes will increase the probability of rain and snow entering the box, which will lead to problems such as rust and short circuit of electronic components. Therefore, how to minimize the negative impact of rain and snow on the electronic components inside the box under outdoor working conditions without affecting the heat dissipation function of the reactive power compensation device is still a problem to be solved. Summary of the invention

[0003] The object of the present invention is to provide an intelligent reactive power compensation device which has excellent heat dissipation effect and can minimize the negative impact of rain and snow.

[0004] In order to achieve the above object, the technical solution specifically provided by the present invention is as follows: An intelligent reactive power compensation device comprises a box body, which is provided with a plurality of through holes for heat dissipation, and the inner wall of the box body is provided with a mounting cover covering the through holes, the mounting cover comprises a cover body and a flange arranged along the peripheral edge of the cover body opening, the flange fits the inner wall of the box body and is fixedly connected to the inner wall of the box body; a plurality of rain and snow intercepting nets and heat dissipation grid plates parallel to the inner wall of the box body are fixedly arranged in the mounting cover; the rain and snow intercepting net is formed by alternatingly stacking a plurality of layers of hydrophilic fiber mesh layers and hydrophobic fiber mesh layers, and the heat dissipation grid plate and the mounting cover are both made of metal material; the heat dissipation grid plate comprises at least two layers of mutually parallel hexagonal grid plates and a plurality of connecting short rods for connecting adjacent hexagonal grid plates, and the connecting short rods are connected to the grid nodes of the hexagonal grid plates on both sides; the side wall of the box body is provided with rainwater diversion holes close to the bottom of the mounting cover, and the rainwater diversion holes connect the inner cavity of the mounting cover and the outside of the box body.

[0005] By adopting the above technical solution, the hexagonal grille mesh and the mounting cover made of metal can quickly conduct heat, so that even if the mounting cover covering the through hole is set, it will not affect the overall heat dissipation effect of the box; at the same time, the rain and snow interception net and the heat dissipation grid plate parallel to the inner wall can work together to intercept rain and snow. The setting of the rain and snow interception net and the heat dissipation grid plate increases the airflow resistance, and the droplets carried in the air are adsorbed, intercepted, and then condensed into water flow and flow into the bottom of the mounting cover, and then discharged through the rainwater diversion hole, thereby maximizing the weakening of the influence of rainwater on the electronic components inside the box, ensuring the working stability of the reactive power compensation device.

[0006] Furthermore, the side wall and / or top wall of the mounting cover is provided with a plurality of communication holes, so as to reduce rain and snow from entering the box body and affecting the electronic components as much as possible, and at the same time, it is more conducive to heat dissipation.

[0007] Furthermore, the connecting short rods are arranged perpendicular to the hexagonal grid plates, or inclined to the hexagonal grid plates, so as to form a three-dimensional solid network structure, which is conducive to the rapid transmission and dissipation of heat, and can also provide a certain rain and snow interception effect.

[0008] Furthermore, the grids of two adjacent layers of hexagonal grid plates are staggered, and the vertices of the hexagonal grids of one layer of hexagonal grid plates face the center points of the hexagonal grids of the adjacent hexagonal grid plates, which improves the heat dissipation and rain and snow interception effects.

[0009] Furthermore, three or six connecting short rods for connecting to another hexagonal grid plate are arranged at the vertex of each hexagonal grid plate. The grid of the hexagonal grid plate is more uniform, the heat dissipation is more balanced, and the structural reliability is better.

[0010] Furthermore, the heat dissipation grid plate is treated by spraying a hydrophobic coating, which is more conducive to the intercepted water droplets sliding off.

[0011] Furthermore, the hydrophobic fiber mesh layer is made of one or more of polytetrafluoroethylene fiber, polyethylene fiber, and polypropylene fiber. Polytetrafluoroethylene fiber, polyethylene fiber, and polypropylene fiber have excellent hydrophobicity, which is conducive to the intercepted water droplets sliding down and gathering at the bottom of the installation cover, and the effect of intercepting rain and snow is better.

[0012] Furthermore, the hydrophobic fiber mesh layer is made of shaped fibers. The shaped fibers have a non-circular cross section and strip-shaped grooves formed on the surface, which are more conducive to intercepting and condensing water vapor.

[0013] Furthermore, the cross section of the special-shaped fiber is a regular polygon, which has a better effect in intercepting rain and snow.

[0014] Furthermore, the shaped fiber includes a metal inner core and a polytetrafluoroethylene layer covering the metal inner core. The metal inner core has fast heat transfer and fast temperature change. Under the same ambient temperature, the temperature is lower than that of water vapor, which is conducive to the water vapor being intercepted and condensed on the rain and snow interception net.

[0015] Furthermore, the hydrophilic fiber mesh layer is made of one or more of polyacrylic acid fiber, polyvinyl alcohol fiber, viscose fiber, cotton fiber, and hemp fiber. The hydrophilic fiber has affinity and adsorption to moisture, which is conducive to intercepting moisture on the rain and snow interception net and then condensing it.

[0016] Furthermore, the rain and snow interception net is in an arc shape protruding toward one side of the through hole.

[0017] Furthermore, the rain and snow interception net is in a pleated shape.

[0018] Furthermore, the rain and snow intercepting net is an integrated network structure formed by interweaving two hydrophobic fiber mesh layers and one hydrophilic fiber mesh layer, and the longitudinal yarns of the hydrophilic fiber mesh layer alternately pass through the transverse yarns of the two adjacent hydrophobic fiber mesh layers to connect the two hydrophobic fiber mesh layers into one.

[0019] Furthermore, the installation cover is insulated from the inner wall of the box; the metal inner core and / or the heat dissipation grid plate can be conductively connected to an auxiliary heat power source, and the auxiliary heat power source is connected to a humidity sensing switch for controlling the on-off of the circuit. When the ambient humidity is too high and insufficient to completely rely on the rain and snow interception net and the hexagonal grid plate to intercept condensation, when the humidity reaches the threshold of the humidity sensing switch, the circuit is connected, the auxiliary heat power source is powered, and the rain and snow interception net and the heat dissipation grid plate can be used as heating mesh plates to play an auxiliary heating role, so that the air in the installation cover tends to flow outward from the through hole, which is conducive to reducing moisture from entering the box.

[0020] Furthermore, the mesh diameter of the rain and snow interception net is smaller than the diameter of the through hole, so that the interception effect of rain and snow is better.

[0021] Furthermore, a mounting groove is provided on the side of the mounting cover, and a metal mounting frame is detachably mounted in the mounting groove; the rain and snow interception net and the heat dissipation grid plate are fixedly arranged on the mounting frame; a gap is formed between the mounting frame and the mounting cover for water to flow down. When the rain and snow interception net and the heat dissipation grid plate need to be replaced or repaired, the mounting frame can be removed, which is convenient and quick.

[0022] Furthermore, the bottom of the mounting cover is tilted toward the rainwater diversion hole, which is more conducive to the drainage of condensed rainwater.

[0023] Furthermore, the outer wall of the installation cover is provided with a locking mechanism for locking the installation frame. The installation frame can be locked with the help of the locking mechanism and is not easy to loosen; when inspecting, the locking function can be released.

[0024] Furthermore, the locking mechanism includes a blocking rod rotatably arranged on the mounting cover, one end of the blocking rod is rotatably arranged by a pin and the other end is threadedly connected with a locking bolt for tightening the mounting frame, and the locking bolt is arranged to penetrate the blocking rod in a direction perpendicular to the blocking rod.

[0025] Furthermore, the capture efficiency of the intelligent reactive power compensation device for liquid mist in the air is 4210 mg cm -2 ·h -1 .

[0026] The present invention has the following beneficial effects: The present invention provides a mounting cover inside the box, and a rain and snow interception net and a heat dissipation grid plate are provided inside the mounting cover, which can intercept rain and snow while ensuring the heat dissipation effect, and minimize the negative impact of rain and snow on the electrical components in the box; The rain and snow interception net is formed by alternating several layers of hydrophilic fiber mesh and hydrophobic fiber mesh to increase airflow resistance. The heat dissipation grid plate is composed of hexagonal grid plates and connecting short rods. It has sufficient structural strength and increases the heat dissipation area, which can quickly conduct and dissipate the heat generated by the electronic components in the box. In the preferred solution, the rain and snow interception net and the heat dissipation grid plate are arranged in a detachable installation frame, which can be easily disassembled and repaired; In the preferred solution, the rain and snow interception net and the heat dissipation grid plate are connected to the auxiliary heating power supply and the humidity switch, and auxiliary heating can be performed to accelerate air circulation according to humidity changes to weaken the negative impact of moisture. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A cross-sectional view (partial) of an intelligent reactive power compensation device in an embodiment; Figure 2 It is a schematic diagram of the structure of the box side wall, the mounting cover and the mounting frame in the embodiment; Figure 3 It is a schematic diagram of the structure of the box side wall and the mounting cover in the embodiment; Figure 4 for Figure 2 A magnified view of part A; Figure 5 It is a cross-sectional view of the installation frame, the rain and snow interception net and the heat dissipation grid plate in the embodiment; Figure 6 It is a schematic diagram of the structure of the installation frame, the rain and snow interception net and the heat dissipation grid plate in the embodiment; Figure 7 for Figure 6 A magnified view of part B; Figure 8 Schematic diagram of the cross-sectional shape of different shaped fibers in the embodiment; Fig. 9 Schematic diagram of the relative position relationship between two adjacent layers of hexagonal grid plates in the embodiment; Fig.10 The auxiliary heating circuit diagram in the embodiment; Fig.11 It is a structural schematic diagram of the (arc-shaped) rain and snow interception net in the embodiment; Fig.12 It is a schematic diagram of the structure of the (pleated) rain and snow interception net in the embodiment; Fig.13 It is a schematic diagram of the structure of the (integrated) rain and snow interception net in the embodiment.

[0028] Description of reference numerals: 1. Box body; 11. Through hole; 2. Mounting cover; 21. Cover body; 211. Connecting hole; 22. Flanging; 3. Rain and snow interception net; 31. Hydrophobic fiber mesh layer; 32. Hydrophilic fiber mesh layer; 4. Heat dissipation grid plate; 41 / 41', hexagonal grid plate; 42. Connecting short rod; 5. Mounting groove; 51. Guide groove; 6. Mounting frame; 61. Guide rib; 62. Handle; 7. Stop rod; 71. Locking bolt; 8. Special-shaped fiber; 81. Metal inner core; 82. Polytetrafluoroethylene layer; 9. Auxiliary heat power supply; 91. Humidity sensing switch. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0030] [Example 1] An intelligent reactive power compensation device, referring to Figure 1 , which includes a box 1. Fuses, circuit breakers, and parallel-connected separate compensation capacitors and common compensation capacitors are installed in the box 1. The separate compensation capacitors and common compensation capacitors are connected to the fuses and circuit breakers, wherein the fuses and circuit breakers are used as short-circuit protection. A number of evenly distributed through holes 11 (not shown in the figure) are opened on the side of the box 1 for heat dissipation.

[0031] Reference Figure 1 and Figure 2 The intelligent reactive power compensation device is usually installed outdoors. In order to reduce rain and snow, which enter the inner side of the box body 1 through the through hole 11 on the box body 1 and further affect the working stability of the internal electronic components, a mounting cover 2 covering the through hole 11 is fixedly provided on the inner wall of the box body 1.

[0032] Reference Figure 2 and Figure 3The mounting cover 2 includes a cover body 21 and a flange 22 arranged along the opening periphery of the cover body 21. The flange 22 is used to be fixedly connected to the inner wall of the box body 1. It can be installed and fixed by a known installation method such as bolt connection. In this embodiment, in order to improve the heat dissipation efficiency, the mounting cover 2 is made of metal material; an insulating pad made of insulating material (not shown in the figure) is arranged between the flange 22 and the inner wall of the box body 1, so that the mounting cover 2 and the box body 1 are in an electrically insulated state. The side wall of the cover body 21 is provided with a plurality of connecting holes 211.

[0033] Reference Figure 2 , Figure 4 and Figure 5 A rectangular mounting groove 5 is provided on the side wall of one side of the cover body 21, and the mounting groove 5 is a through groove connected to the inner cavity of the cover body 21. A rectangular mounting frame 6 is inserted in the mounting groove 5. A handle 62 is fixedly provided on the mounting frame 6 to facilitate the pulling out of the mounting frame 6. At the same time, a pair of blocking rods 7 are provided on the side wall of the cover body 21 through a pin rotation, and a locking bolt 71 is threadedly connected to the end of the blocking rod 7. The locking bolt 71 is arranged perpendicular to the side wall of the mounting frame 6. After the mounting frame 6 is inserted into the mounting groove 5, the blocking rod 7 is rotated and the locking bolt 71 is tightened to fix the mounting frame 6 in the mounting groove 5.

[0034] Reference Figure 4 In order to facilitate the operation of installing the installation frame 6, a guide rib 61 with a semicircular cross section is provided on the upper frame and the lower frame of the installation frame 6, and a guide groove 51 is provided on the side wall of the installation groove 5 for the guide rib 61 to be inserted into. When the installation frame 6 is inserted into the installation groove 5, the guide rib 61 slides along the guide groove 51, so that the installation frame 6 can be kept parallel to the side wall of the box body 1.

[0035] Reference Figure 4 The bottom of the cover 21 is set to be arc-shaped, which is inclined toward the side wall of the box body 1. A rainwater diversion hole is also opened on the side wall of the box body 1. The rainwater diversion hole connects the inner cavity of the cover 21 and the outside of the box body 1, and is set near the inner bottom wall of the cover 21. The condensed water of rain and snow in the installation cover 2 can be collected at the bottom of the cover 21, and then led out of the box body 1 from the rainwater diversion hole.

[0036] Reference Figure 5 and Figure 6, a rain and snow interception net 3 and a heat dissipation grid plate 4 are fixedly arranged in the installation frame 6, and the two are arranged in parallel, and the rain and snow interception net 3 is arranged near the through hole 11. The rain and snow interception net 3 is composed of several layers of hydrophilic fiber mesh layers 32 and hydrophobic fiber mesh layers 31 alternately stacked. In this embodiment, the rain and snow interception net 3 is composed of a layer of hydrophilic fiber mesh layer 32 and a layer of hydrophobic fiber mesh layer 31, and the hydrophilic fiber mesh layer 32 is arranged near the heat dissipation grid plate 4. The hydrophobic fiber mesh layer 31 is made of one or more of polytetrafluoroethylene fiber, polyethylene fiber, and polypropylene fiber; the hydrophilic fiber mesh layer 32 is made of one or more of polyacrylic acid fiber, polyvinyl alcohol fiber, viscose fiber, cotton fiber, and linen fiber. In this embodiment, the hydrophobic fiber mesh layer 31 is made of polytetrafluoroethylene fiber; the hydrophilic fiber mesh layer 32 is made of polyvinyl alcohol fiber. The mesh aperture of the rain and snow interception net 3 is smaller than the aperture of the through hole 11. Rain and snow particles or water droplets in high humidity air can be intercepted, condensed, converged, and then discharged by the rain and snow interception net 3. In other embodiments, a rain and snow interception net 3 with more layers can be selected, and the hydrophilic fiber mesh layer 32 and the hydrophobic fiber mesh layer 31 can be alternately stacked in the form of "hydrophobic / hydrophilic / hydrophobic", "hydrophobic / hydrophilic / hydrophobic / hydrophilic / hydrophobic", etc.

[0037] Reference Figure 6 and Figure 7 , the heat dissipation grid plate 4 has the function of accelerating heat dissipation while cooperating with the rain and snow interception net 3 to intercept and condense water vapor. The heat dissipation grid plate 4 is made of metal material, and includes at least two layers of hexagonal grid plates 41 and a plurality of connecting short rods 42 connected between adjacent hexagonal grid plates 41. The heat dissipation grid plate 4 is treated by spraying a hydrophobic coating, and a hydrophobic layer is formed on its surface, which is conducive to reducing the adhesion of droplets. In this embodiment, the connecting short rod 42 is connected between the corresponding grid fixed points of the two adjacent layers of hexagonal grid plates 41, and is arranged perpendicular to the hexagonal grid plates 41, so that the heat dissipation grid plate 4 has a three-dimensional network structure, which can give full play to its role in heat dissipation and intercepting condensed water droplets.

[0038] The working principle of the scheme of this embodiment is as follows: insert the installation frame 6 into the installation groove 5 on the cover body 21, rotate the baffle 7, and rotate the locking bolt 71 to fix the installation frame 6. At this time, the rain and snow interception net 3 and the heat dissipation grid plate 4 are parallel to the side wall of the box body 1; since the cover body 21 and the heat dissipation grid plate 4 are both made of metal materials, they can quickly conduct and dissipate heat to the side of the through hole 11; on the other hand, when rainwater particles / droplets enter the cover body 21 from the through hole 11, they will pass through the rain and snow interception net 3 and the heat dissipation grid plate 4 in turn. The fine mesh structure of the rain and snow interception net 3 and the three-dimensional network structure of the heat dissipation grid plate 4 can cooperate to intercept and condense the droplets, thereby forming a converged water flow, which falls to the bottom of the cover body 21 and is finally discharged through the rainwater diversion hole, thereby maximizing the reduction of the negative impact of rain and snow on the electronic components in the box body 1 under the premise of ensuring normal heat dissipation. The rain and snow intercepting net 3 is composed of alternately stacked hydrophilic fiber net layers 32 and hydrophobic fiber net layers 31, so that the liquid droplets flowing through the rain and snow intercepting net 3 with the air can be intercepted / absorbed and then condensed.

[0039] [Example 2] This embodiment is based on the embodiment 1, and the difference is that the hydrophobic fiber mesh layer 31 of the rain and snow interception net 3 is made of special-shaped fibers 8. Figure 8 The shaped fiber 8 includes a metal inner core 81 and a polytetrafluoroethylene layer 82 coated on the metal inner core 81. The cross-sectional shape of the shaped fiber 8 can be a regular polygon such as a regular triangle, a regular pentagon, a regular hexagon, or other shapes such as a Y-shape, a trilobate, a quadrilobate, a pentlobate, a fan, etc. In this embodiment, the cross-sectional shape of the shaped fiber 8 is a regular hexagon.

[0040] [Example 3] This embodiment is based on the embodiment 2, and the difference is that the structure of the heat dissipation grid plate 4 is different. Fig. 9 In this embodiment, two layers of hexagonal grid plates 41 are staggered, that is, the center point of the hexagonal grid of one layer of hexagonal grid plate 41 corresponds to the vertex position of the hexagonal grid of the other layer of hexagonal grid plate 41'; three or six inclined connecting short rods 42 ( Fig. 9 The two layers of hexagonal grid plates 41 / 41' and a plurality of connecting short rods 42 together form a heat dissipation grid plate 4 with a three-dimensional network structure (not shown). Fig. 9 (not shown). In this embodiment, six inclined connecting short rods 42 are connected to the vertices of each hexagonal grid.

[0041] [Example 4] This embodiment is based on embodiment 3. Fig.10, the difference is that: the rain and snow interception net 3 (R1) and the heat dissipation grid plate 4 (R2) are connected to the auxiliary heat power supply 9, the rain and snow interception net 3 (R1) and the heat dissipation grid plate 4 (R2) are connected in parallel, and humidity sensing switches 91 (K1, K2) are provided on each branch. When the air humidity reaches the threshold of the humidity sensing switch 91 (K1, K2), the rain and snow interception net 3 (R1) and / or the heat dissipation grid plate 4 (R2) are connected to the auxiliary heat power supply 9 for electrical heating to accelerate dehumidification.

[0042] [Example 5] This embodiment is based on embodiment 4. Fig.11 The difference is that the rain and snow interception net 3 protrudes toward the side of the box body 1 to form an arc. The arc-shaped rain and snow interception net 3 has better self-supporting strength and also increases the contact area with wet air to a certain extent, which is conducive to intercepting and condensing droplets.

[0043] [Example 6] This embodiment is based on embodiment 4. Fig.12 The difference is that the rain and snow interception net 3 is pleated, which significantly increases the contact area with the wet air and has a better effect of intercepting and condensing droplets.

[0044] [Example 7] This embodiment is based on embodiment 4. Fig.13 , the difference is that the hydrophilic fiber mesh layer 32 and the hydrophobic fiber mesh layer 31 of the rain and snow interception net 3 are an integrated structure formed by interweaving, and are composed of one hydrophilic fiber mesh layer 32 and two hydrophobic fiber mesh layers 31. The longitudinal yarns of the hydrophilic fiber mesh layer 32 first pass through the transverse yarns of the hydrophobic fiber mesh layer 31 on one side, and then pass through the transverse yarns of the hydrophobic fiber mesh layer 31 on the other side, and the three are repeatedly woven into a whole; at the same time, the interweaving and weaving directions of two adjacent longitudinal yarns of the hydrophilic fiber mesh layer 32 are opposite.

[0045] The intelligent reactive power compensation devices of Example 7 and Example 5 were used to conduct simulation experiments. Moist air with a humidity of 90 RH% and a temperature of 25±5°C was blown uniformly toward the through hole 11 at a rate of 3 m / s along the direction perpendicular to the side wall of the box body 1. The amount of condensed water discharged from the rainwater diversion hole per unit time was collected, weighed and calculated, and the capture efficiency of droplets in the air was calculated. After the simulation experiment, the capture efficiency of the intelligent reactive power compensation device of Example 7 was 4210 mg·cm -2 ·h -1 , compared with Example 5, the capture efficiency of the intelligent reactive power compensation device is 38-43% higher.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An intelligent reactive power compensation device, comprising a box (1), the box (1) having a plurality of through holes (11) for heat dissipation, characterized in that: The inner wall of the box body (1) is provided with a mounting cover (2) covering the through hole (11), the mounting cover (2) comprising a cover body (21) and a flange (22) arranged along the peripheral edge of the opening side of the cover body (21), the flange (22) being in contact with the inner wall of the box body (1) and fixedly connected to the inner wall of the box body (1); a plurality of rain and snow interception nets (3) and heat dissipation grid plates (4) parallel to the inner wall of the box body (1) are fixedly arranged in the mounting cover (2); the rain and snow interception nets (3) are composed of a plurality of layers of hydrophilic fiber mesh layers (32) and hydrophobic fiber mesh layers (31) alternately arranged. The heat dissipation grid plate (4) and the mounting cover (2) are both made of metal material; the heat dissipation grid plate (4) comprises at least two layers of mutually parallel hexagonal grid plates (41) and a plurality of connecting short rods (42) for connecting adjacent hexagonal grid plates (41), and the connecting short rods (42) are connected to grid nodes of the hexagonal grid plates (41) on both sides; the side wall of the box body (1) is provided with a rainwater diversion hole close to the bottom of the mounting cover (2), and the rainwater diversion hole communicates with the inner cavity of the mounting cover (2) and the outside of the box body (1).

2. The intelligent reactive power compensation device according to claim 1, characterized in that: The connecting short rods (42) are arranged perpendicular to the hexagonal grid plates (41), or are arranged obliquely to the hexagonal grid plates (41).

3. The intelligent reactive power compensation device according to claim 2, characterized in that: The grids of two adjacent layers of hexagonal grid plates (41) are arranged in a staggered manner, and the vertices of the hexagonal grids of one layer of hexagonal grid plates (41) face the center points of the hexagonal grids of the adjacent hexagonal grid plates (41).

4. The intelligent reactive power compensation device according to claim 3, characterized in that: Three or six connecting short rods (42) for connecting to another hexagonal grid plate (41) are arranged at each hexagonal grid vertex of the hexagonal grid plate (41).

5. The intelligent reactive power compensation device according to claim 1, characterized in that: The hydrophobic fiber mesh layer (31) is made of one or more of polytetrafluoroethylene fibers, polyethylene fibers, and polypropylene fibers.

6. The intelligent reactive power compensation device according to claim 5, characterized in that: The hydrophobic fiber mesh layer (31) is made of special-shaped fibers (8).

7. The intelligent reactive power compensation device according to claim 5, characterized in that: The mesh diameter of the rain and snow interception net (3) is smaller than the diameter of the through hole (11).

8. An intelligent reactive power compensation device according to any one of claims 1 to 7, characterized in that: The side of the installation cover (2) is provided with an installation groove (5), and a metal installation frame (6) is detachably installed in the installation groove (5); the rain and snow interception net (3) and the heat dissipation grid plate (4) are both fixedly arranged on the installation frame (6).

9. The intelligent reactive power compensation device according to claim 8, characterized in that: The bottom of the installation cover (2) is arranged to be inclined toward the rainwater diversion hole.

10. The intelligent reactive power compensation device according to claim 8, characterized in that: The outer wall of the installation cover (2) is provided with a locking mechanism for locking the installation frame (6).

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