Outdoor high-voltage ring main unit moisture-proof device

Abstract

A moisture-proof device for an outdoor high-voltage ring main unit relates to a moisture-proof device for a ring main unit and is characterized in that a cabinet door with a ventilation opening is arranged on the high-voltage ring main unit, built-in equipment is arranged in the high-voltage ring main unit, a cement vertical shaft with a cement board at the upper port is arranged at the lower part of the high-voltage ring main unit, and the built-in equipment is connected with and controls a cable in the cement vertical shaft. One side of the lower portion of the high-voltage ring main unit is provided with an opening, the cement board is provided with a square opening corresponding to the opening of the high-voltage ring main unit, and the upper portion and the lower portion of the cement board are provided with an upper water and moisture absorption filter screen and a lower water and moisture absorption filter screen respectively. The fan blades are controlled by the positive and negative rotation motor to achieve cooling and moisture prevention of a well cavity in the high-voltage ring main unit or drying in the cement vertical well; according to the high-voltage ring main unit, the opening is formed in the bottom plate of the high-voltage ring main unit, the square opening is formed in the cement plate, the fan blades wrapped by the water and moisture absorption filter screen are arranged in the square opening, and the fan blades suck cold air in the cement shaft upwards into the high-voltage ring main unit, so that damp prevention and cooling of built-in equipment are achieved.

Description

Technical Field

[0001] The invention relates to a moisture-proof device for a ring network cabinet, in particular to a moisture-proof device for an outdoor high-voltage ring network cabinet. Background Art

[0002] In the power supply and distribution, the outdoor high-voltage ring network cabinet is responsible for the distribution and control of the power of the underground cable. The outdoor high-voltage ring network cabinet is also an important part of the power system. The outdoor high-voltage ring network cabinet connects the power supply network into a ring distribution state. This power supply method is usually called ring network power supply. Because it is located in towns, the current ring network power supply cable is mostly laid underground, and then the outdoor high-voltage ring network cabinet is used to distribute electricity to customers. The general structure is to lay cable trenches underground or bury multiple cable casings deeply, set up a cement shaft at each power supply node, and set up a high-voltage ring network cabinet on the top of the cement shaft. As an important part of the power system, the outdoor ring network cabinet is responsible for the distribution and control of electric energy. It has a wide variety of built-in equipment, including high-voltage cabinets, medium-voltage cabinets, transformers, protection devices, etc. These equipment work together to ensure the normal and stable operation of the power system. The built-in equipment in the high-voltage ring network cabinet will be damaged due to excessive heat and humidity in the rainy season during operation, and there is also a problem of excessive moisture in the cement shaft. Summary of the invention

[0003] The purpose of the present invention is to disclose an outdoor high-voltage ring network cabinet moisture-proof device based on the existing deficiencies. An opening is arranged on the bottom plate of the high-voltage ring network cabinet and a square opening is arranged on the cement plate, and fan blades wrapped with a water-absorbing and moisture-absorbing filter are arranged in the square opening. The fan blades suck the cold air in the cement shaft upward into the high-voltage ring network cabinet to obtain moisture-proof and cooling of the built-in equipment.

[0004] In order to achieve the purpose of the invention, this application discloses the following technical solutions: The invention discloses an outdoor high-voltage ring network cabinet moisture-proof device. A cabinet door with ventilation slots is arranged on the high-voltage ring network cabinet. Built-in equipment is arranged in the high-voltage ring network cabinet. A cement shaft with a cement board at the upper port is arranged at the lower part of the high-voltage ring network cabinet. The built-in equipment is connected to and controls the cables in the cement shaft. An opening is arranged on one side of the lower part of the high-voltage ring network cabinet. A square opening corresponding to the opening of the high-voltage ring network cabinet is arranged on the cement board. Fan blades with an upper water absorption and moisture absorption filter screen and a lower water absorption and moisture absorption filter screen at the upper and lower parts respectively are located in the square opening. The fan blades are controlled by a forward and reverse motor to obtain cooling and moisture-proofing of the well cavity in the high-voltage ring network cabinet or drying of the cement shaft.

[0005] The outdoor high-voltage ring network cabinet moisture-proof device is characterized in that the upper square frame of the upper water-absorbing and moisture-absorbing filter is a trapezoidal structure that is small at the top and large at the bottom. A square frame is arranged at the upper end of the upper square frame, and the upper square frame and the lower bracket are connected by four upper oblique support rods. The upper square frame and the lower bracket are respectively provided with upper water-absorbing and moisture-absorbing filters around them; the forward and reverse motor is installed in the middle of the upper surface of the mounting plate, and the power output shaft of the forward and reverse motor passes through the mounting plate and is connected to the fan blades. The forward and reverse motor is connected to an external power supply or has its own power supply; the four sides of the lower bracket are pressed on the upper part of the square opening of the cement board, the inner side of the lower surface of the lower bracket is fixedly connected to the upper opening of the insertion tube, and the lower water-absorbing and moisture-absorbing filter is installed on the lower opening of the insertion tube.

[0006] The outdoor high-voltage ring network cabinet moisture-proof device, the lower water absorption and moisture absorption filter screen is a trapezoidal structure with a convex middle part, the convex middle part is composed of an upper square support rod, a lower square trough plate and lower oblique support rods at four corners, and lower water absorption and moisture absorption filter screens are respectively arranged between the square support rods, the square trough plates and the lower oblique support rods at the four corners, the upper parts of the four trough plates are respectively provided with grooves, a connecting pipe is arranged at the lower part of one of the four trough plates, the inner end of the drainage pipe is connected to the connecting pipe, and the outer end of the drainage pipe is outside the cement shaft.

[0007] The outdoor high-voltage ring network cabinet moisture-proof device is provided with an inner folding edge on the inner side of the groove of the four slot plates, the upper part of the inner folding edge is slightly lower than the upper inner side of the slot of the slot plate, and the lower part of the lower water absorption and moisture absorption filter is fixedly connected to the outer side surface of the inner folding edge.

[0008] The outdoor high-voltage ring network cabinet moisture-proof device has ventilation slots arranged at the lower part of the cabinet door, and the ventilation slots are a plurality of protrusions that bulge forward in strips from top to bottom.

[0009] In the outdoor high-voltage ring network cabinet moisture-proof device, the cement board at the upper part of the cement shaft is slightly larger than the upper outer edge surface of the cement shaft, and the cement board is cast in situ.

[0010] The outdoor high-voltage ring network cabinet moisture-proof device is provided with a plurality of ventilation openings around the upper opening of the cement shaft.

[0011] The outdoor high-voltage ring network cabinet moisture-proof device is arranged at a position where the plurality of ventilation holes near the upper opening of the cement shaft are slightly higher than the surrounding ground.

[0012] In the outdoor high-voltage ring network cabinet moisture-proof device, the square opening arranged on the cement board is slightly smaller than the opening of the high-voltage ring network cabinet, and the square opening of the cement board and the opening of the high-voltage ring network cabinet can be used as inspection ports to enter the cement shaft.

[0013] Through the above disclosure, the beneficial effects of the present invention are: The outdoor high-voltage ring network cabinet moisture-proof device of the present invention increases the volume of the high-voltage ring network cabinet, sets an opening by using the bottom plate of the enlarged part, sets a corresponding square opening on the cement board, implants the fan blades between the upper water absorption and moisture absorption filter screen and the lower water absorption and moisture absorption filter screen, and uses the bracket to press on the square opening of the cement board. When it is necessary to cool and dehumidify the high-voltage ring network cabinet, the dry air filtered twice by the upper water absorption and moisture absorption filter screen and the lower water absorption and moisture absorption filter screen in the cement shaft can be used to cool the high-voltage ring network cabinet in a moisture-proof manner, and the moisture in the high-voltage ring network cabinet with excessive moisture during rainy days can be driven out through the ventilation slots on the cabinet door by the aforementioned action; if the moisture in the cement shaft is too high, the moisture in the cement shaft can also be driven out of the cement shaft through the ventilation port by reversing the forward and reverse motor; during maintenance, the present invention takes the forward and reverse motor together with the bracket removed, and the opening and the square opening form the maintenance entrance of the cement shaft. After the maintenance is completed, the forward and reverse motor can be installed together with the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional assembly structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the forward and reverse motor of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the fan blade of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the upper water and moisture absorption filter screen of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the lower water and moisture absorption filter screen of the present invention; Figure 6 It is a schematic diagram of the connection structure between the drainage pipe and the connecting pipe of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the present invention outdoors; In the figure: 1. high-voltage ring network cabinet; 2. cabinet door; 3. ventilation slot; 4. opening; 5. built-in equipment; 6. forward and reverse motor; 7. mounting plate; 8. power output shaft; 9. upper square frame; 10. upper water absorption and moisture absorption filter; 11. bracket; 12. insertion tube; 13. fan blade; 14. lower water absorption and moisture absorption filter; 15. drain pipe; 16. installation position; 17. cement board; 18. square mouth; 19. well cavity; 20. ventilation port; 21. cement shaft; 22. cable casing; 23. upper oblique support rod; 24. lower oblique support rod; 25. trough plate; 26. inner folding edge; 27. connecting pipe; 28. ground. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings so as to more clearly understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to explain that the technical solution of the present invention is not limited to one implementation method.

[0016] Combined with Figures 1 to 7 The outdoor high-voltage ring network cabinet moisture-proof device described in the invention comprises a cabinet door 2 with ventilation slots 3 on the high-voltage ring network cabinet 1, the ventilation slots 3 are arranged at the lower part of the cabinet door 2, the ventilation slots 3 are a plurality of protrusions bulging from top to bottom in a strip shape, a built-in device 5 is arranged in the high-voltage ring network cabinet 1, a cement shaft 21 with a cement board 17 at the upper port is arranged at the lower part of the high-voltage ring network cabinet 1, the cement board 17 at the upper part of the cement shaft 21 is slightly larger than the upper outer edge surface of the cement shaft 21, the cement board 17 is cast-in-place, the built-in device 5 is connected to and controls the cables in the cement shaft 21, a plurality of ventilation holes 20 are arranged around the cement shaft 21 near the upper port, and the built-in device 5 is arranged in the cement shaft 21. The multiple ventilation holes 20 near the upper opening 21 are slightly higher than the surrounding ground 28. An opening 4 is provided on one side of the lower part of the high-voltage ring network cabinet 1. A square opening 18 corresponding to the opening 4 of the high-voltage ring network cabinet 1 is provided on the cement board 17. The square opening 18 provided on the cement board 17 is slightly smaller than the opening 4 of the high-voltage ring network cabinet 1. The square opening 18 of the cement board 17 and the opening 4 of the high-voltage ring network cabinet 1 can be used as inspection ports to enter the cement shaft 21. The fan blades 13 with the upper water absorption and moisture absorption filter 10 and the lower water absorption and moisture absorption filter 14 at the upper and lower parts are respectively located in the square opening 18. The fan blades 13 are controlled by the forward and reverse motors 6 to obtain the cooling and moisture-proofing of the well cavity 19 in the high-voltage ring network cabinet 1 or the drying of the cement shaft 21.

[0017] Combined with Figure 1 , 4, 5 or 6, the upper frame 9 of the upper water-absorbing and moisture-absorbing filter 10 is a trapezoidal structure with a small upper part and a large lower part, a frame is arranged at the upper end of the upper frame 9, the upper frame 9 is connected to the lower bracket 11 by four upper oblique support rods 23, and the upper frame 9 and the lower bracket 11 are respectively provided with an upper water-absorbing and moisture-absorbing filter 10 around them; the forward and reverse motor 6 is installed in the middle of the upper surface of the mounting plate 7, the power output shaft 8 of the forward and reverse motor 6 passes through the mounting plate 7 and is connected to the fan blade 13, and the forward and reverse motor 6 is externally connected The four sides of the lower bracket 11 are pressed on the upper part of the square opening 18 of the cement board 17, the inner side of the lower surface of the lower bracket 11 is fixedly connected to the upper opening of the insertion tube 12, and the lower water absorption and moisture absorption filter 14 is installed on the lower opening of the insertion tube 12; the upper square frame 9, the upper oblique support rod 23, the bracket 11 and the insertion tube 12 are made of angle iron, iron plate and painted with anti-rust paint for rust prevention; in order to make the lower surface of the bracket 11 close to the cement board 17, a layer of weather-resistant plastic wrapped can be bonded to the lower surface of the bracket 11 The lower water-absorbing and moisture-absorbing filter screen 14 is a trapezoidal structure with a convex middle part, and the convex middle part is composed of an upper square support rod, a lower square slot plate 25, and lower oblique support rods 24 at four corners. The lower water-absorbing and moisture-absorbing filter screen 14 is respectively arranged between the square support rod, the square slot plate 25, and the lower oblique support rods 24 at four corners. The upper parts of the four slot plates 25 are respectively provided with grooves, and a connecting pipe 27 is arranged at the lower part of one of the four slot plates 25, and the inner end of the drain pipe 15 is connected to the connecting pipe 27. Pipe 27, the outer end of the drainage pipe 15 is outside the cement shaft 21; the support rod, the lower oblique support rod 24 and the groove plate 25 are made of angle iron and iron plate and painted with anti-rust paint for rust prevention; an inner folding edge 26 is arranged on the inner side of the groove of the four groove plates 25, and the upper part of the inner folding edge 26 is slightly lower than the upper part of the inner side of the groove of the groove plate 25, and the lower part of the lower water absorption and moisture absorption filter 14 is fixedly connected with the outer side surface of the inner folding edge 26, and the groove plate 25 uses channel steel and the inner folding edge 26 is welded inside; or it is made of iron plate by a bending machine.

[0018] Furthermore, the upper water-absorbing and hygroscopic filter screen 10 and the lower water-absorbing and hygroscopic filter screen 14 of the present application use highly water-absorbing and hygroscopic fiber cloth.

[0019] Implement the outdoor high-voltage ring network cabinet moisture-proof device of the present invention, combined with the attached Figures 1 to 7The high-voltage ring network cabinet 1 of the present invention is manufactured with an increased internal space, that is, after leaving enough installation space for the built-in equipment 5 in the high-voltage ring network cabinet 1, a door and an inner cavity are added on one side of the high-voltage ring network cabinet 1, and an opening 4 is reserved on the bottom plate of the increased space; the cement shaft 21 and the cable casing 22 of the present invention are constructed according to conventional practices, wherein a slightly smaller square opening 18 is set according to the size of the opening 4 of the high-voltage ring network cabinet 1 when the cement board 17 is manufactured, and the cement board 17 can be prefabricated on the upper part of the cement shaft 21 after the cable is loaded into the cable casing 22 and laid, and the manufactured cement board 17 can also be passed through Hoist it on the upper part of the cement shaft 21, then install the high-voltage ring network cabinet 1 at the installation position 16 on the upper surface of the cement board 17, put the built-in devices 5 one by one into the high-voltage ring network cabinet 1 and connect the cables and the required lines and equipment; after the power output shaft 8 of the forward and reverse motor 6 passes through the mounting plate 7, fix the forward and reverse motor 6 on the mounting plate 7, and then fix the mounting plate 7 on the upper frame 9, then buckle the slot plate 25 at the lower part of the insertion tube 12 and fix it, and finally insert the insertion tube 12 into the square opening 18 of the cement board 17. At this time, the lower surface of the bracket 11 is tightly attached to the upper end of the square opening 18 of the cement board 17, and the forward and reverse motor is fixed. The power line of the machine 6 is connected to the line of the built-in device 5 in the high-voltage ring network cabinet 1, and the forward and reverse motor 6 is started to rotate forward through the control switch on the power line. When the temperature of the high-voltage ring network cabinet 1 is too high, the cold air in the well cavity 19 of the cement shaft 21 is sent into the high-voltage ring network cabinet 1 by the forward and reverse motor 6, and then discharged through the ventilation slot 3 of the cabinet door 2 of the high-voltage ring network cabinet 1; in this process, when the humid air passes through the upper water absorption and moisture absorption filter screen 10 and the lower water absorption and moisture absorption filter screen 14, most of the water vapor in the air is absorbed by the upper water absorption and moisture absorption filter screen 10 and the lower water absorption and moisture absorption filter screen 14, and the adhering water droplets are removed by the trapezoidal upper water absorption and moisture absorption filter screen 10. It gathers around and then flows down along the four sides, and then flows to the trough plate 25 through the inner wall of the insertion tube 12. Similarly, the lower water absorption and moisture absorption filter 14 also absorbs most of the water vapor in the air, and flows from the lower water absorption and moisture absorption filter 14 around to the trough plate 25, and then is discharged to the ground 28 outside the cement shaft 21 through the drain pipe 15; when the state inside the cement shaft 21 is about to be inspected or the moisture in the cement shaft 21 is too high, turn on the control switch to start the forward and reverse motor 6 to reverse, and the forward and reverse motor 6 will send the dry air in the high-voltage ring network cabinet 1 into the well cavity 19 of the cement shaft 21 to obtain the dryness of the well cavity 19 of the cement shaft 21.

[0020] The preferred embodiments of the present invention have been described in detail above, but it should be understood that after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications within the scope of protection of the present invention. These equivalent forms also fall within the scope defined by the claims attached to this application.

[0021] The parts not described in detail in this invention are prior art.

Claims

1. An outdoor high-voltage ring network cabinet moisture-proof device, wherein a cabinet door (2) having a ventilation slot (3) is provided on the high-voltage ring network cabinet (1), a built-in device (5) is provided in the high-voltage ring network cabinet (1), a cement shaft (21) having a cement plate (17) at an upper port is provided at the lower part of the high-voltage ring network cabinet (1), and the built-in device (5) is connected to and controls the cable in the cement shaft (21), wherein: An opening (4) is provided on one side of the lower portion of the high-voltage ring network cabinet (1), a square opening (18) corresponding to the opening (4) of the high-voltage ring network cabinet (1) is provided on the cement plate (17), and a fan blade (13) provided with an upper water absorption and moisture absorption filter (10) and a lower water absorption and moisture absorption filter (14) at the upper and lower portions, respectively, is located in the square opening (18), and the fan blade (13) is controlled by a forward and reverse motor (6) to obtain cooling and moisture prevention of a well cavity (19) in the high-voltage ring network cabinet (1) or drying of a cement shaft (21).

2. The outdoor high-voltage ring network cabinet moisture-proof device according to claim 1 is characterized in that: The upper square frame (9) of the upper water-absorbing and moisture-absorbing filter (10) is in a trapezoidal structure with a small upper portion and a large lower portion. A square frame is arranged at the upper end of the upper square frame (9). The upper square frame (9) is connected to the lower bracket (11) by four upper oblique support rods (23). The upper square frame (9) and the lower bracket (11) are respectively provided with upper water-absorbing and moisture-absorbing filters (10). The forward and reverse motor (6) is mounted on the middle of the upper surface of the mounting plate (7). The power output shaft (8) of the forward and reverse motor (6) passes through the mounting plate (7) and is connected to the fan blades (13). The forward and reverse motor (6) is connected to an external power supply or has its own power supply. The four sides of the lower bracket (11) are pressed against the upper portion of the square opening (18) of the cement board (17). The inner side of the lower surface of the lower bracket (11) is fixedly connected to the upper opening of the insertion tube (12). The lower water-absorbing and moisture-absorbing filter (14) is mounted on the lower opening of the insertion tube (12).

3. The outdoor high-voltage ring main unit moisture-proof device according to claim 1 or 2, characterized in that: The lower water absorption and moisture absorption filter screen (14) is in a trapezoidal structure with a convex middle portion, the convex middle portion being composed of an upper square support rod, a lower square slot plate (25) and lower oblique support rods (24) at four corners, the lower water absorption and moisture absorption filter screen (14) being respectively arranged between the square support rod, the square slot plate (25) and the lower oblique support rods (24) at the four corners, the upper portions of the four slot plates (25) being respectively provided with grooves, the lower portion of one of the four slot plates (25) being provided with a connecting pipe (27), the inner end of the drainage pipe (15) being connected to the connecting pipe (27), and the outer end of the drainage pipe (15) being located outside the cement shaft (21).

4. The outdoor high-voltage ring network cabinet moisture-proof device according to claim 1 is characterized in that: An inner folding edge (26) is provided inside the grooves of the four groove plates (25), the upper portion of the inner folding edge (26) is slightly lower than the inner upper portion of the groove opening of the groove plate (25), and the lower portion of the lower water absorption and moisture absorption filter (14) is fixedly connected to the outer side surface of the inner folding edge (26).

5. The outdoor high-voltage ring network cabinet moisture-proof device according to claim 1 is characterized in that: The ventilation slots (3) are arranged at the lower part of the cabinet door (2), and the ventilation slots (3) are a plurality of protrusions that bulge forward in a strip shape from top to bottom.

6. The outdoor high-voltage ring main unit moisture-proof device according to claim 1 is characterized in that: The cement board (17) at the upper part of the cement shaft (21) is slightly larger than the upper outer edge surface of the cement shaft (21), and the cement board (17) is cast in situ.

7. The outdoor high-voltage ring main unit moisture-proof device according to claim 1 is characterized in that: A plurality of ventilation openings (20) are arranged around the cement shaft (21) near the upper opening.

8. The outdoor high-voltage ring network cabinet moisture-proof device according to claim 7 is characterized in that: The plurality of ventilation openings (20) arranged near the upper opening of the cement shaft (21) are slightly higher than the surrounding ground (28).

9. The outdoor high-voltage ring main unit moisture-proof device according to claim 1 is characterized in that: The square opening (18) provided on the cement board (17) is slightly smaller than the opening (4) of the high-voltage ring network cabinet (1). The square opening (18) of the cement board (17) and the opening (4) of the high-voltage ring network cabinet (1) can be used as inspection openings to enter the cement shaft (21).

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